code stringlengths 3 1.18M | language stringclasses 1 value |
|---|---|
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.apps.iosched.gcm.server.device;
import com.google.android.apps.iosched.gcm.server.BaseServlet;
import com.google.android.apps.iosched.gcm.server.db.MessageStore;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that adds a new message and notifies all registered devices.
*
* <p>This class should not be called directly. Instead, it's used as a helper
* for the SendMessage task queue.
*/
@SuppressWarnings("serial")
public class MulticastQueueWorker extends BaseServlet {
private MessageSender mSender;
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
mSender = new MessageSender(config);
}
/**
* Processes the request to add a new message.
*/
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) {
Long multicastId = new Long(req.getParameter("multicastKey"));
boolean success = mSender.sendMessage(multicastId);
if (success) {
taskDone(resp, multicastId);
} else {
retryTask(resp);
}
}
/**
* Indicates to App Engine that this task should be retried.
*/
private void retryTask(HttpServletResponse resp) {
resp.setStatus(500);
}
/**
* Indicates to App Engine that this task is done.
*/
private void taskDone(HttpServletResponse resp, Long multicastId) {
MessageStore.deleteMulticast(multicastId);
resp.setStatus(200);
}
}
| Java |
/**
* Copyright 2012 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.apps.iosched.gcm.server.api;
import com.google.android.apps.iosched.gcm.server.BaseServlet;
import com.google.android.apps.iosched.gcm.server.db.DeviceStore;
import com.google.android.apps.iosched.gcm.server.db.models.Device;
import com.google.android.apps.iosched.gcm.server.device.MessageSender;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.logging.Logger;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/** Send message to all registered devices */
@SuppressWarnings("serial")
public class SendMessageServlet extends BaseServlet {
private static final Logger LOG = Logger.getLogger(SendMessageServlet.class.getName());
/** Authentication key for incoming message requests */
private static final String[][] AUTHORIZED_KEYS = {
{"YOUR_API_KEYS_HERE", "developers.google.com"},
{"YOUR_API_KEYS_HERE", "googleapis.com/googledevelopers"},
{"YOUR_API_KEYS_HERE", "Device Key"}
};
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
// Authenticate request
String authKey = null;
String authHeader = req.getHeader("Authorization");
String squelch = null;
if (authHeader != null) {
// Use 'Authorization: key=...' header
String splitHeader[] = authHeader.split("=");
if ("key".equals(splitHeader[0])) {
authKey = splitHeader[1];
}
}
if (authKey == null) {
// Valid auth key not found. Check for 'key' query parameter.
// Note: This is included for WebHooks support, but will consume message body!
authKey = req.getParameter("key");
squelch = req.getParameter("squelch");
}
String authorizedUser = null;
for (String[] candidateKey : AUTHORIZED_KEYS) {
if (candidateKey[0].equals(authKey)) {
authorizedUser = candidateKey[1];
break;
}
}
if (authorizedUser == null) {
send(resp, 403, "Not authorized");
return;
}
// Extract URL components
String result = req.getPathInfo();
if (result == null) {
send(resp, 400, "Bad request (check request format)");
return;
}
String[] components = result.split("/");
if (components.length != 3) {
send(resp, 400, "Bad request (check request format)");
return;
}
String target = components[1];
String action = components[2];
// Extract extraData
String payload = readBody(req);
// Override: add jitter for server update requests
// if ("sync_schedule".equals(action)) {
// payload = "{ \"sync_jitter\": 21600000 }";
// }
// Request decoding complete. Log request parameters
LOG.info("Authorized User: " + authorizedUser +
"\nTarget: " + target +
"\nAction: " + action +
"\nSquelch: " + (squelch != null ? squelch : "null") +
"\nExtra Data: " + payload);
// Send broadcast message
MessageSender sender = new MessageSender(getServletConfig());
if ("global".equals(target)) {
List<Device> allDevices = DeviceStore.getAllDevices();
if (allDevices == null || allDevices.isEmpty()) {
send(resp, 404, "No devices registered");
} else {
int resultCount = allDevices.size();
LOG.info("Selected " + resultCount + " devices");
sender.multicastSend(allDevices, action, squelch, payload);
send(resp, 200, "Message queued: " + resultCount + " devices");
}
} else {
// Send message to one device
List<Device> userDevices = DeviceStore.findDevicesByGPlusId(target);
if (userDevices == null || userDevices.isEmpty()) {
send(resp, 404, "User not found");
} else {
int resultCount = userDevices.size();
LOG.info("Selected " + resultCount + " devices");
sender.multicastSend(userDevices, action, squelch, payload);
send(resp, 200, "Message queued: " + resultCount + " devices");
}
}
}
private String readBody(HttpServletRequest req) throws IOException {
ServletInputStream inputStream = req.getInputStream();
java.util.Scanner s = new java.util.Scanner(inputStream).useDelimiter("\\A");
return s.hasNext() ? s.next() : "";
}
private static void send(HttpServletResponse resp, int status, String body)
throws IOException {
if (status >= 400) {
LOG.warning(body);
} else {
LOG.info(body);
}
// Prevent frame hijacking
resp.addHeader("X-FRAME-OPTIONS", "DENY");
// Write response data
resp.setContentType("text/plain");
PrintWriter out = resp.getWriter();
out.print(body);
resp.setStatus(status);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.apps.iosched.gcm.server.cron;
import com.google.android.apps.iosched.gcm.server.BaseServlet;
import com.google.android.apps.iosched.gcm.server.db.DeviceStore;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@SuppressWarnings("serial")
public class VacuumDbServlet extends BaseServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
resp.setContentType("text/html");
resp.addHeader("X-FRAME-OPTIONS", "DENY");
// Print "OK" message
PrintWriter out = resp.getWriter();
out.print("OK");
resp.setStatus(HttpServletResponse.SC_OK);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.apps.iosched.gcm.server.db;
import com.google.android.apps.iosched.gcm.server.db.models.MulticastMessage;
import java.util.List;
import java.util.logging.Logger;
import static com.google.android.apps.iosched.gcm.server.db.OfyService.ofy;
/**
* Simple implementation of a data store using standard Java collections.
* <p>
* This class is neither persistent (it will lost the data when the app is
* restarted) nor thread safe.
*/
public final class MessageStore {
private static final Logger LOG = Logger.getLogger(MessageStore.class.getName());
private MessageStore() {
throw new UnsupportedOperationException();
}
/**
* Creates a persistent record with the devices to be notified using a
* multicast message.
*
* @param devices registration ids of the devices
* @param type message type
* @param extraData additional message payload
* @return ID for the persistent record
*/
public static Long createMulticast(List<String> devices,
String type,
String extraData) {
LOG.info("Storing multicast for " + devices.size() + " devices. (type=" + type + ")");
MulticastMessage msg = new MulticastMessage();
msg.setDestinations(devices);
msg.setAction(type);
msg.setExtraData(extraData);
ofy().save().entity(msg).now();
Long id = msg.getId();
LOG.fine("Multicast ID: " + id);
return id;
}
/**
* Gets a persistent record with the devices to be notified using a
* multicast message.
*
* @param id ID for the persistent record
*/
public static MulticastMessage getMulticast(Long id) {
return ofy().load().type(MulticastMessage.class).id(id).get();
}
/**
* Updates a persistent record with the devices to be notified using a
* multicast message.
*
* @param id ID for the persistent record.
* @param devices new list of registration ids of the devices.
*/
public static void updateMulticast(Long id, List<String> devices) {
MulticastMessage msg = ofy().load().type(MulticastMessage.class).id(id).get();
if (msg == null) {
LOG.severe("No entity for multicast ID: " + id);
return;
}
msg.setDestinations(devices);
ofy().save().entity(msg);
}
/**
* Deletes a persistent record with the devices to be notified using a
* multicast message.
*
* @param id ID for the persistent record.
*/
public static void deleteMulticast(Long id) {
ofy().delete().type(MulticastMessage.class).id(id);
}
}
| Java |
/*
* Copyright 2013 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.apps.iosched.gcm.server.db;
import com.google.android.apps.iosched.gcm.server.db.models.Device;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.Query;
import java.util.List;
import java.util.logging.Logger;
import static com.google.android.apps.iosched.gcm.server.db.OfyService.ofy;
public class DeviceStore {
private static final Logger LOG = Logger.getLogger(DeviceStore.class.getName());
/**
* Registers a device.
*
* @param gcmId device's registration id.
*/
public static void register(String gcmId, String gPlusId) {
LOG.info("Registering device.\nG+ ID: " + gPlusId + "\nGCM ID: " + gcmId);
Device oldDevice = findDeviceByGcmId(gcmId);
if (oldDevice == null) {
// Existing device not found (as expected)
Device newDevice = new Device();
newDevice.setGcmId(gcmId);
newDevice.setGPlusId(gPlusId);
ofy().save().entity(newDevice);
} else {
// Existing device found
LOG.warning(gcmId + " is already registered");
if (!gPlusId.equals(oldDevice.getGPlusId())) {
LOG.info("gPlusId has changed from '" + oldDevice.getGPlusId() + "' to '"
+ gPlusId + "'");
oldDevice.setGPlusId(gPlusId);
ofy().save().entity(oldDevice);
}
}
}
/**
* Unregisters a device.
*
* @param gcmId device's registration id.
*/
public static void unregister(String gcmId) {
Device device = findDeviceByGcmId(gcmId);
if (device == null) {
LOG.warning("Device " + gcmId + " already unregistered");
return;
}
LOG.info("Unregistering " + gcmId);
ofy().delete().entity(device);
}
/**
* Updates the registration id of a device.
*/
public static void updateRegistration(String oldGcmId, String newGcmId) {
LOG.info("Updating " + oldGcmId + " to " + newGcmId);
Device oldDevice = findDeviceByGcmId(oldGcmId);
if (oldDevice == null) {
LOG.warning("No device for registration id " + oldGcmId);
return;
}
// Device exists. Since we use the GCM key as the (immutable) primary key,
// we must create a new entity.
Device newDevice = new Device();
newDevice.setGcmId(newGcmId);
newDevice.setGPlusId(oldDevice.getGPlusId());
ofy().save().entity(newDevice);
ofy().delete().entity(oldDevice);
}
/**
* Gets registered device count.
*/
public static int getDeviceCount() {
return ofy().load().type(Device.class).count();
}
public static List<Device> getAllDevices() {
return ofy().load().type(Device.class).list();
}
public static Device findDeviceByGcmId(String regId) {
return ofy().load().type(Device.class).id(regId).get();
}
public static List<Device> findDevicesByGPlusId(String target) {
return ofy().load().type(Device.class).filter("gPlusId", target).list();
}
} | Java |
/*
* Copyright 2013 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.apps.iosched.gcm.server.db.models;
import com.googlecode.objectify.annotation.Entity;
import com.googlecode.objectify.annotation.Id;
import com.googlecode.objectify.annotation.Index;
@Entity
public class Device {
@Id private String gcmId;
@Index private String gPlusId;
public String getGcmId() {
return gcmId;
}
public void setGcmId(String gcmId) {
this.gcmId = gcmId;
}
public String getGPlusId () {
return gPlusId;
}
public void setGPlusId(String gPlusId) {
this.gPlusId = gPlusId;
}
}
| Java |
/*
* Copyright 2013 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.apps.iosched.gcm.server.db.models;
import com.googlecode.objectify.Key;
import com.googlecode.objectify.annotation.Entity;
import com.googlecode.objectify.annotation.Id;
import java.util.List;
@Entity
public class MulticastMessage {
@Id private Long id;
private String action;
private String extraData;
private List<String> destinations;
public Key<MulticastMessage> getKey() {
return Key.create(MulticastMessage.class, id);
}
public Long getId() {
return id;
}
public String getAction() {
return action;
}
public void setAction(String action) {
this.action = action;
}
public String getExtraData() {
return extraData;
}
public void setExtraData(String extraData) {
this.extraData = extraData;
}
public List<String> getDestinations() {
return destinations;
}
public void setDestinations(List<String> destinations) {
this.destinations = destinations;
}
}
| Java |
/*
* Copyright 2013 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.apps.iosched.gcm.server.db;
import com.google.android.apps.iosched.gcm.server.db.models.Device;
import com.google.android.apps.iosched.gcm.server.db.models.MulticastMessage;
import com.googlecode.objectify.Objectify;
import com.googlecode.objectify.ObjectifyFactory;
import com.googlecode.objectify.ObjectifyService;
/** Static initializer for Objectify ORM service.
*
* <p>To use this class: com.google.android.apps.iosched.gcm.server.db.OfyService.ofy;
*
* <p>This is responsible for registering model classes with Objectify before any references
* access to the ObjectifyService takes place. All models *must* be registered here, as Objectify
* doesn't do classpath scanning (by design).
*/
public class OfyService {
static {
factory().register(Device.class);
factory().register(MulticastMessage.class);
}
public static Objectify ofy() {
return ObjectifyService.ofy();
}
public static ObjectifyFactory factory() {
return ObjectifyService.factory();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.apps.iosched.gcm.server.db;
import java.util.logging.Logger;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.EntityNotFoundException;
import com.google.appengine.api.datastore.Key;
import com.google.appengine.api.datastore.KeyFactory;
import com.google.appengine.api.datastore.DatastoreService;
/**
* Context initializer that loads the API key from a
* {@value #PATH} file located in the classpath (typically under
* {@code WEB-INF/classes}).
*/
public class ApiKeyInitializer implements ServletContextListener {
public static final String API_KEY = "<ENTER_YOUR_KEY>";
public static final String ATTRIBUTE_ACCESS_KEY = "apiKey";
private static final String ENTITY_KIND = "Settings";
private static final String ENTITY_KEY = "MyKey";
private static final String ACCESS_KEY_FIELD = "ApiKey";
private final Logger mLogger = Logger.getLogger(getClass().getName());
@Override
public void contextInitialized(ServletContextEvent event) {
DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
Key key = KeyFactory.createKey(ENTITY_KIND, ENTITY_KEY);
Entity entity;
try {
entity = datastore.get(key);
} catch(EntityNotFoundException e) {
entity = new Entity(key);
// NOTE: it's not possible to change entities in the local server, so
// it will be necessary to hardcode the API key below if you are running
// it locally.
entity.setProperty(ACCESS_KEY_FIELD,
API_KEY);
datastore.put(entity);
mLogger.severe("Created fake key. Please go to App Engine admin "
+ "console, change its value to your API Key (the entity "
+ "type is '" + ENTITY_KIND + "' and its field to be changed is '"
+ ACCESS_KEY_FIELD + "'), then restart the server!");
}
String accessKey = (String) entity.getProperty(ACCESS_KEY_FIELD);
event.getServletContext().setAttribute(ATTRIBUTE_ACCESS_KEY, accessKey);
}
/**
* Gets the access key.
*/
protected String getKey() {
com.google.appengine.api.datastore.DatastoreService datastore = DatastoreServiceFactory
.getDatastoreService();
Key key = KeyFactory.createKey(ENTITY_KIND, ENTITY_KEY);
String apiKey = "";
try {
Entity entity = datastore.get(key);
apiKey = (String) entity.getProperty(ACCESS_KEY_FIELD);
} catch (EntityNotFoundException e) {
mLogger.severe("Exception will retrieving the API Key"
+ e.toString());
}
return apiKey;
}
@Override
public void contextDestroyed(ServletContextEvent event) {
}
}
| Java |
package com.googlecode.catchexception.apis.hamcrest;
import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
/**
* Creates a {@link Matcher matcher} that matches an exception that has no
* {@link Throwable#getCause() cause}.
*
* @author rwoo
*
* @param <T>
* an exception subclass
*/
public class ExceptionNoCauseMatcher<T extends Exception> extends
BaseMatcher<T> {
/*
* (non-Javadoc)
*
* @see org.hamcrest.Matcher#matches(java.lang.Object)
*/
public boolean matches(Object obj) {
if (!(obj instanceof Exception))
return false;
Exception exception = (Exception) obj;
return exception.getCause() == null;
}
/*
* (non-Javadoc)
*
* @see org.hamcrest.SelfDescribing#describeTo(org.hamcrest.Description)
*/
public void describeTo(Description description) {
description.appendText("has no cause");
}
}
| Java |
package com.googlecode.catchexception.apis.hamcrest;
import org.hamcrest.BaseMatcher;
import org.hamcrest.CoreMatchers;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
/**
*
* Creates a {@link Matcher matcher} that matches an exception with a certain
* message.
*
* @author rwoo
*
* @param <T>
* an exception subclass
*/
public class ExceptionMessageMatcher<T extends Exception> extends
BaseMatcher<T> {
/**
* The string matcher that shall match exception message.
*/
private Matcher<String> expectedMessageMatcher;
/**
* @param expectedMessage
* the expected exception message
*/
public ExceptionMessageMatcher(String expectedMessage) {
super();
this.expectedMessageMatcher = CoreMatchers.is(expectedMessage);
}
/**
* @param expectedMessageMatcher
* a string matcher that shall match the exception message
*/
public ExceptionMessageMatcher(Matcher<String> expectedMessageMatcher) {
super();
this.expectedMessageMatcher = expectedMessageMatcher;
}
/*
* (non-Javadoc)
*
* @see org.hamcrest.Matcher#matches(java.lang.Object)
*/
public boolean matches(Object obj) {
if (!(obj instanceof Exception))
return false;
Exception exception = (Exception) obj;
String foundMessage = exception.getMessage();
return expectedMessageMatcher.matches(foundMessage);
}
/*
* (non-Javadoc)
*
* @see org.hamcrest.SelfDescribing#describeTo(org.hamcrest.Description)
*/
public void describeTo(Description description) {
description.appendText("has a message that ").appendDescriptionOf(
expectedMessageMatcher);
}
}
| Java |
package com.googlecode.catchexception.apis;
import com.googlecode.catchexception.apis.fest.CatchExceptionFestObjectAssert;
/**
* This 'proof of concept' shows how use catch-exception with a syntax similar
* to <a href="http://docs.codehaus.org/display/FEST/More+Examples">FEST</a>,
* see {@link #assertThat2(Object)}.
*
* @author rwoo
*
*/
public class CatchExceptionFestAssertions {
/**
* Creates a new instance of
* <code>{@link CatchExceptionFestObjectAssert}</code>.
* <p>
* EXAMPLE:
* <code><pre class="prettyprint lang-java">assertThat2(service).throwz(IllegalArgumentException.class).when().prepareBilling(Prize.Zero);
assertThat(caughtException())
.hasMessage("Prize must be greater than zero but was 0.0")
.hasNoCause();
</pre></code>
*
* @param <T>
* @param actual
* the value to be the target of the assertions methods.
* @return Returns the created assertion object.
*/
public static <T> CatchExceptionFestObjectAssert<T> assertThat2(T actual) {
return new CatchExceptionFestObjectAssert<T>(actual);
}
}
| Java |
package com.googlecode.catchexception.apis.fest;
import org.fest.assertions.ObjectAssert;
import com.googlecode.catchexception.CatchException;
/**
* In comparison to {@link ObjectAssert} this class holds a proxy that is able
* to catch and verify that a exception is thrown as soon as any method is
* called on the proxy.
*
* @author rwoo
*
* @param <T>
* the type of object that shall be proxied so that the proxy can
* catch and verify the thrown exception.
*/
public class CatchExceptionFestObjectAssert<T> extends ObjectAssert {
/**
* The proxy that is able to catch and verify that a exception is thrown as
* soon as any method is called on the proxy.
*/
private T proxy;
/**
* @param actual
* the target to verify.
*/
public CatchExceptionFestObjectAssert(T actual) {
super(actual);
}
/**
* Verifies that a method throws an exception of the given type, or to be
* more precise, creates a proxy that is able to do this. See
* {@link #when()}.
*
* @param expectedExceptionType
* the type of the expected exception
* @return Returns this assertion object with an initialized proxy, see
* {@link #when()}.
*/
@SuppressWarnings("unchecked")
public CatchExceptionFestObjectAssert<T> throwz(
Class<? extends Exception> expectedExceptionType) {
proxy = (T) CatchException.verifyException(actual,
expectedExceptionType);
return this;
}
/**
* @return Returns the proxy that catches and verifies that a exception is
* thrown as soon as any method is called on the proxy.
*/
public T when() {
return proxy;
}
}
| Java |
package com.googlecode.catchexception.apis;
import org.hamcrest.Matcher;
import org.junit.matchers.JUnitMatchers;
import com.googlecode.catchexception.apis.hamcrest.ExceptionMessageMatcher;
import com.googlecode.catchexception.apis.hamcrest.ExceptionNoCauseMatcher;
/**
* Provides some {@link Matcher matchers} to match some {@link Exception
* exception} properties.
* <p>
* EXAMPLE:
* <code><pre class="prettyprint lang-java">assertThat(caughtException(),
allOf(
is(IndexOutOfBoundsException.class),
hasMessage("Index: 9, Size: 9"),
hasNoCause()
));</pre></code>
* <p>
* To combine the standard Hamcrest matchers, your custom matchers, these
* matchers, and other matcher collections (as {@link JUnitMatchers}) in a
* single class follow the instructions outlined in <a
* href="http://code.google.com/p/hamcrest/wiki/Tutorial#Sugar_generation">Sugar
* generation</a>.
*
* @author rwoo
*/
public class CatchExceptionHamcrestMatchers {
/**
* EXAMPLE:
* <code><pre class="prettyprint lang-java">assertThat(caughtException(), hasMessage("Index: 9, Size: 9"));</pre></code>
*
* @param <T>
* the exception subclass
* @param expectedMessage
* the expected exception message
* @return Returns a matcher that matches an exception if it has the given
* message.
*/
public static <T extends Exception> org.hamcrest.Matcher<T> hasMessage(
String expectedMessage) {
return new ExceptionMessageMatcher<T>(expectedMessage);
}
/**
* EXAMPLES:
* <code><pre class="prettyprint lang-java">assertThat(caughtException(), hasMessageThat(is("Index: 9, Size: 9")));
assertThat(caughtException(), hasMessageThat(containsString("Index: 9"))); // using JUnitMatchers
assertThat(caughtException(), hasMessageThat(containsPattern("Index: \\d+"))); // using Mockito's Find</pre></code>
*
* @param <T>
* the exception subclass
* @param stringMatcher
* a string matcher
* @return Returns a matcher that matches an exception if the given string
* matcher matches the exception message.
*/
public static <T extends Exception> org.hamcrest.Matcher<T> hasMessageThat(
Matcher<String> stringMatcher) {
return new ExceptionMessageMatcher<T>(stringMatcher);
}
/**
* EXAMPLE:
* <code><pre class="prettyprint lang-java">assertThat(caughtException(), hasNoCause());</pre></code>
*
* @param <T>
* the exception subclass
* @return Returns a matcher that matches the exception if it does not have
* a {@link Throwable#getCause() cause}.
*/
public static <T extends Exception> org.hamcrest.Matcher<T> hasNoCause() {
return new ExceptionNoCauseMatcher<T>();
}
}
| Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/** This package contains the public API of project catch-exception.
You find more information in {@link com.googlecode.catchexception.CatchException}. */
package com.googlecode.catchexception; | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception;
import java.io.Serializable;
/**
* Thrown if a method has not thrown an exception of the expected type.
*
* @author rwoo
* @since 16.09.2011
*/
public class ExceptionNotThrownAssertionError extends AssertionError {
/**
* See {@link Serializable}.
*/
private static final long serialVersionUID = 7044423604241785057L;
/**
* Use this constructor if neither an exception of the expected type nor
* another exception is thrown.
*
* @param <E>
* the type of the exception that is not thrown.
* @param clazz
* the type of the exception that is not thrown.
*/
public <E extends Exception> ExceptionNotThrownAssertionError(Class<E> clazz) {
super(clazz == Exception.class ? "Exception expected but not thrown"
: "Neither an exception of type " + clazz.getName()
+ " nor another exception was thrown");
}
/**
* Use this constructor if an exception of another than the expected type is
* thrown.
*
* @param <E>
* the type of the exception that is not thrown.
* @param clazz
* the type of the exception that is not thrown.
* @param e
* the exception that has been thrown instead of the expected
* one.
*/
public <E extends Exception> ExceptionNotThrownAssertionError(
Class<E> clazz, Exception e) {
super("Exception of type " + clazz.getName()
+ " expected but was not thrown. "
+ "Instead an exception of type " + e.getClass()
+ " with message '" + e.getMessage() + "' was thrown.");
}
}
| Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception;
import org.mockito.cglib.proxy.MethodInterceptor;
import com.googlecode.catchexception.internal.DelegatingInterceptor;
import com.googlecode.catchexception.internal.ExceptionHolder;
import com.googlecode.catchexception.internal.ExceptionProcessingInterceptor;
import com.googlecode.catchexception.internal.InterfaceOnlyProxyFactory;
import com.googlecode.catchexception.internal.SubclassProxyFactory;
/**
* The methods of this class catch and verify exceptions in <em>a single line of
* code</em> and make them available for further analysis.
* <p>
* This Javadoc content is also available on the <a
* href="http://code.google.com/p/catch-exception/" >catch-exception</a> web
* page.
*
* <h1>Documentation</h1>
* <p>
* <b> <a href="#1">1. How to use catch-exception?</a><br/>
* <a href="#2">2. What is this stuff actually good for?</a> <br/>
* <a href="#3">3. How does it work internally?</a><br/>
* <a href="#4">4. When is the caught exception reset?</a><br/>
* <a href="#5">5. My code throws a ClassCastException. Why?</a> <br/>
* <a href="#6">6. The exception is not caught. Why?</a> <br/>
* <a href="#7">7. Do I have to care about memory leaks?</a> <br/>
* <a href="#8">8. The caught exception is not available in another thread.
* Why?</a><br/>
* <a href="#9">9. How do I catch an exception thrown by a static method?</a> <br/>
* <a href="#11">11. Can I catch errors instead of exceptions?</a> <br/>
*
*
*
* </b>
* <p>
* <h3 id="1">1. How to use catch-exception?</h3>
* <p>
* The most basic usage is:
* <code><pre class="prettyprint lang-java">import static com.googlecode.catchexception.CatchException.*;
// call customerService.prepareBilling(Prize.Zero)
// and catch the exception if any is thrown
catchException(customerService).prepareBilling(Prize.Zero);
// assert that an IllegalArgumentException was thrown
assert caughtException() instanceof IllegalArgumentException;</pre></code>
* <p>
* You can combine the two lines of code in a single one if you like:
* <code><pre class="prettyprint lang-java">// call customerService.prepareBilling(Prize.Zero)
// and throw an ExceptionNotThrownAssertionError if
// the expected exception is not thrown
verifyException(customerService, IllegalArgumentException.class).prepareBilling(Prize.Zero);</pre></code>
* There is a minor difference between both variants. In the first variant you
* must start the JVM with option <code>-ea</code> to enable the assertion. The
* second variant does not use JDK assertions and ,therefore, always verifies
* the caught exception.
* <p>
* A third variant allows you to select the type of exceptions you want to catch
* (no verification involved):
* <code><pre class="prettyprint lang-java">// catch IllegalArgumentExceptions but no other exceptions
catchException(customerService, IllegalArgumentException.class).prepareBilling(Prize.Zero);</pre></code>
* <p>
* The fourth and last variant verifies that some exception is thrown, i.e. the
* type of the exception does not matter:
* <code><pre class="prettyprint lang-java">verifyException(customerService).prepareBilling(Prize.Zero);</pre></code>
* <p>
* In all variants you can use <code>caughtException()</code> afterwards to
* inspect the caught exception.
* <h3 id="2">2. What is this stuff actually good for?</h3>
* <p>
* This class targets concise and robust code in tests. Dadid Saff, a commiter
* to JUnit, has <a
* href="http://shareandenjoy.saff.net/2006/12/assertthrownexception_20.html"
* >discussed</a> this approach in 2007. Let me summarize the arguments here.
* <p>
* There are two advantages of the approach proposed here in comparison to the
* use of try/catch blocks.
* <ul>
* <li>The test is more concise and easier to read.
* <li>The test cannot be corrupted by a missing assertion. Assume you forgot to
* type <code>fail()</code> behind the method call that is expected to throw an
* exception.
* </ul>
* <p>
* There are also some advantages of this approach in comparison to test
* runner-specific mechanisms that catch and verify exceptions.
* <ul>
* <li>A single test can verify more than one thrown exception.
* <li>The test can verify the properties of the thrown exception after the
* exception is caught.
* <li>The test can specify by which method call the exception must be thrown.
* <li>The test does not depend on a specific test runner (JUnit4, TestNG).
* </ul>
* <p>
* <h3 id="3">3. How does it work internally?</h3>
* <p>
* The method <code>catchException(obj)</code> wraps the given object with a
* proxy that catches the exception, then (optionally) verifies the exception,
* and finally attaches the exception to the current <a
* name="threadlocal">thread</a> for further analysis. The <a
* href="#proxies">known limitations</a> for proxies apply.
* <p>
* Is both memory consumption and runtime a concern for you? Then use try/catch
* blocks instead of this class. Because in this case the creation of proxies is
* an unnecessary overhead. If only either memory consumption or runtime is an
* issue for you, feel free to configure the cache of the underlying proxy
* factories as appropriate.
* <h3 id="4">4. When is the caught exception reset?</h3>
* <p>
* The Method {@link #caughtException()} returns the exception thrown by the
* last method call on a proxied object in the current thread, i.e. it is reset
* by calling a method on the proxied object. If the called method has not
* thrown an exception, <code>caughtException()</code> returns null.
* <p>
* To reset the caught exception manually, call {@link #resetCaughtException()}.
* At the moment there is no way to reset exceptions that have been caught in
* other threads.
* <h3 id="5"><a name="proxies" />5. My code throws a ClassCastException. Why?</h3>
* <p>
* Example:
* <code><pre class="prettyprint lang-java">StringBuilder sb = new StringBuilder();
catchException(sb).charAt(-2); // throws ClassCastException</pre></code>
* <p>
* Probably you have tested a final class. Proxy factories usually try to
* subclass the type of the proxied object. This is not possible if the original
* class is final. But there is a way out. If the tested method belongs to an
* interface, then you can cast the argument (here: <code>sb</code>) to that
* interface or ,easier, change the declared type of the argument to the
* interface type. This works because the created proxy is not longer required
* to have the same type as the original class but it must only have the same
* interface.
* <code><pre class="prettyprint lang-java">// first variant
StringBuilder sb = new StringBuilder();
catchException((CharSequence) sb).charAt(-2); // works fine
// second variant
CharSequence sb = new StringBuilder();
catchException(sb).charAt(-2); // works fine</pre></code> If the tested
* method does no belong to an interface fall back to the try/catch-blocks or
* use <a
* href="http://code.google.com/p/catch-exception/wiki/Dependencies">Powermock
* </a>.
* <code><pre class="prettyprint lang-java">// example for
PowerMock with JUnit4
@RunWith(PowerMockRunner.class)
@PrepareForTest({ MyFinalType.class })
public class MyTest {
</pre></code>
* <h3 id="6">6. The exception is not caught. Why?</h3>
* <p>
* Example:
* <code><pre class="prettyprint lang-java">ServiceImpl impl = new ServiceImpl();
catchException(impl).do(); // do() is a final method that throws an exception</pre></code>
* <p>
* Probably you have tested a final method. If that tested method belongs to an
* interface you could use {@link #interfaces(Object)} to fix that problem. But
* then the syntax starts to become ugly.
* <code><pre class="prettyprint lang-java">Service api = new ServiceImpl();
catchException(interfaces(api)).do(); // works fine</pre></code> I recommend
* to use try/catch blocks in such cases.
*
* <h3 id="7">7. Do I have to care about memory leaks?</h3>
* <p>
* This library uses a {@link ThreadLocal}. ThreadLocals are known to cause
* memory leaks if they refer to a class the garbage collector would like to
* collect. If you use this library only for testing, then memory leaks do not
* worry you. If you use this library for other purposes than testing, you
* should care.
* <p>
* <h3 id="8">8. The caught exception is not available in another thread. Why?</h3>
* <p>
* The caught exception is saved <a href="#threadlocal">at the thread</a> the
* exception is thrown in. This is the reason the exception is not visible
* within any other thread.
* <h3 id="9">9. How do I catch an exception thrown by a static method?</h3>
* <p>
* Unfortunately, catch-exception does not support this. Fall back on try/catch
* blocks.
* <h3 id="10">10. Is there a way to get rid of the throws clause in my test
* method?</h3>
* <p>
* Example:
* <code><pre class="prettyprint lang-java">public void testSomething() throws Exception {
...
catchException(obj).do(); // do() throws a checked exception</pre></code> No,
* although the exception is always caught you cannot omit the throws clause in
* your test method.
* <h3 id="11">11. Can I catch errors instead of exceptions?</h3>
* <p>
* At the moment you cannot catch {@link Throwable throwables} that are not
* {@link Exception exceptions}. But this could be easily changed if someone
* wants to get this feature.
*
* @author rwoo
* @since 16.09.2011
*/
public class CatchException {
/**
* Returns the exception caught during the last call on the proxied object
* in the current thread.
*
* @param <E>
* This type parameter makes some type casts redundant.
* @return Returns the exception caught during the last call on the proxied
* object in the current thread - if the call was made through a
* proxy that has been created via
* {@link #verifyException(Object, Class) verifyException()} or
* {@link #catchException(Object, Class) catchException()}. Returns
* null the proxy has not caught an exception. Returns null if the
* caught exception belongs to a class that is no longer
* {@link ClassLoader loaded}.
*/
public static <E extends Exception> E caughtException() {
return ExceptionHolder.<E> get();
}
/**
* Use it to verify that an exception is thrown and to get access to the
* thrown exception (for further verifications).
* <p>
* The following example verifies that obj.doX() throws a Exception:
* <code><pre class="prettyprint lang-java">verifyException(obj).doX(); // catch and verify
assert "foobar".equals(caughtException().getMessage()); // further analysis
</pre></code>
* <p>
* If <code>doX()</code> does not throw a <code>Exception</code>, then a
* {@link ExceptionNotThrownAssertionError} is thrown. Otherwise the thrown
* exception can be retrieved via {@link #caughtException()}.
* <p>
*
* @param <T>
* The type of the given <code>obj</code>.
*
* @param obj
* The instance that shall be proxied. Must not be
* <code>null</code>.
* @return Returns an object that verifies that each invocation on the
* underlying object throws an exception.
*/
public static <T> T verifyException(T obj) {
return verifyException(obj, Exception.class);
}
/**
* Use it to verify that an exception of specific type is thrown and to get
* access to the thrown exception (for further verifications).
* <p>
* The following example verifies that obj.doX() throws a MyException:
* <code><pre class="prettyprint lang-java">verifyException(obj, MyException.class).doX(); // catch and verify
assert "foobar".equals(caughtException().getMessage()); // further analysis
</pre></code>
* <p>
* If <code>doX()</code> does not throw a <code>MyException</code>, then a
* {@link ExceptionNotThrownAssertionError} is thrown. Otherwise the thrown
* exception can be retrieved via {@link #caughtException()}.
* <p>
*
* @param <T>
* The type of the given <code>obj</code>.
*
* @param <E>
* The type of the exception that shall be caught.
* @param obj
* The instance that shall be proxied. Must not be
* <code>null</code>.
* @param clazz
* The type of the exception that shall be thrown by the
* underlying object. Must not be <code>null</code>.
* @return Returns an object that verifies that each invocation on the
* underlying object throws an exception of the given type.
*/
public static <T, E extends Exception> T verifyException(T obj,
Class<E> clazz) {
return processException(obj, clazz, true);
}
/**
* Use it to catch an exception and to get access to the thrown exception
* (for further verifications).
* <p>
* In the following example you catch exceptions that are thrown by
* obj.doX():
* <code><pre class="prettyprint lang-java">catchException(obj).doX(); // catch
if (caughtException() != null) {
assert "foobar".equals(caughtException().getMessage()); // further analysis
}</pre></code>
* If <code>doX()</code> throws a exception, then {@link #caughtException()}
* will return the caught exception. If <code>doX()</code> does not throw a
* exception, then {@link #caughtException()} will return <code>null</code>.
* <p>
*
* @param <T>
* The type of the given <code>obj</code>.
*
* @param obj
* The instance that shall be proxied. Must not be
* <code>null</code>.
* @return Returns a proxy for the given object. The proxy catches
* exceptions of the given type when a method on the proxy is
* called.
*/
public static <T> T catchException(T obj) {
return processException(obj, Exception.class, false);
}
/**
* Use it to catch an exception of a specific type and to get access to the
* thrown exception (for further verifications).
* <p>
* In the following example you catch exceptions of type MyException that
* are thrown by obj.doX():
* <code><pre class="prettyprint lang-java">catchException(obj, MyException.class).doX(); // catch
if (caughtException() != null) {
assert "foobar".equals(caughtException().getMessage()); // further analysis
}</pre></code>
* If <code>doX()</code> throws a <code>MyException</code>, then
* {@link #caughtException()} will return the caught exception. If
* <code>doX()</code> does not throw a <code>MyException</code>, then
* {@link #caughtException()} will return <code>null</code>. If
* <code>doX()</code> throws an exception of another type, i.e. not a
* subclass but another class, then this exception is not thrown and
* {@link #caughtException()} will return <code>null</code>.
* <p>
*
* @param <T>
* The type of the given <code>obj</code>.
*
* @param <E>
* The type of the exception that shall be caught.
* @param obj
* The instance that shall be proxied. Must not be
* <code>null</code>.
* @param clazz
* The type of the exception that shall be caught. Must not be
* <code>null</code>.
* @return Returns a proxy for the given object. The proxy catches
* exceptions of the given type when a method on the proxy is
* called.
*/
public static <T, E extends Exception> T catchException(T obj,
Class<E> clazz) {
return processException(obj, clazz, false);
}
/**
* Creates a proxy that processes exceptions thrown by the underlying
* object.
* <p>
* Delegates to
* {@link SubclassProxyFactory#createProxy(Class, MethodInterceptor)} which
* itself might delegate to
* {@link InterfaceOnlyProxyFactory#createProxy(Class, MethodInterceptor)}.
*/
@SuppressWarnings("javadoc")
private static <T, E extends Exception> T processException(T obj,
Class<E> exceptionClazz, boolean assertException) {
if (obj == null) {
throw new IllegalArgumentException("obj must not be null");
}
return new SubclassProxyFactory().<T> createProxy(obj.getClass(),
new ExceptionProcessingInterceptor<E>(obj, exceptionClazz,
assertException));
}
/**
* Returns a proxy that implements all interfaces of the underlying object.
*
* @param <T>
* must be an interface the object implements
* @param obj
* the object that created proxy will delegate all calls to
* @return Returns a proxy that implements all interfaces of the underlying
* object and delegates all calls to that underlying object.
*/
public static <T> T interfaces(T obj) {
if (obj == null) {
throw new IllegalArgumentException("obj must not be null");
}
return new InterfaceOnlyProxyFactory().<T> createProxy(obj.getClass(),
new DelegatingInterceptor(obj));
}
/**
* Sets the {@link #caughtException() caught exception} to null. This does
* not affect exceptions saved at threads other than the current one.
* <p>
* Actually you probably never need to call this method because each method
* call on a proxied object in the current thread resets the caught
* exception. But if you want to improve test isolation or if you want to
* 'clean up' after testing (to avoid memory leaks), call the method before
* or after testing.
*/
public static void resetCaughtException() {
ExceptionHolder.set(null);
}
}
| Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception.internal;
import java.lang.reflect.Method;
import com.googlecode.catchexception.ExceptionNotThrownAssertionError;
/**
* This abstract method invocation interceptor
* <ul>
* <li>delegates all method calls to the 'underlying object',
* <li>catches exceptions of a given type, and
* <li>(optionally) asserts that an exception of a specific type is thrown.
* </ul>
*
* @author rwoo
* @param <E>
* The type of the exception that is caught and ,optionally,
* verified.
* @since 16.09.2011
*/
class AbstractExceptionProcessingInvocationHandler<E extends Exception> {
/**
* See
* {@link #AbstractExceptionProcessingInvocationHandler(Object, Class, boolean)}
* .
*/
protected Class<E> clazz;
/**
* See
* {@link #AbstractExceptionProcessingInvocationHandler(Object, Class, boolean)}
* .
*/
protected Object target;
/**
* See
* {@link #AbstractExceptionProcessingInvocationHandler(Object, Class, boolean)}
* .
*/
protected boolean assertException;
/**
* @param target
* The object all method calls are delegated to. Must not be
* <code>null</code>.
* @param clazz
* the type of the exception that is to catch. Must not be
* <code>null</code>.
* @param assertException
* True if the interceptor shall throw an
* {@link ExceptionNotThrownAssertionError} if the method has not
* thrown an exception of the expected type.
*/
public AbstractExceptionProcessingInvocationHandler(Object target,
Class<E> clazz, boolean assertException) {
if (clazz == null) {
throw new IllegalArgumentException(
"exceptionClazz must not be null");
}
if (target == null) {
throw new IllegalArgumentException("target must not be null");
}
this.clazz = clazz;
this.target = target;
this.assertException = assertException;
}
/**
* Must be called by the subclass before the intercepted method invocation.
*/
protected void beforeInvocation() {
// clear exception cache
ExceptionHolder.set(null);
}
/**
* Must be called by the subclass after the method invocation that has not
* thrown a exception.
*
* @param retval
* The value returned by the intercepted method invocation.
* @return The value that shall be returned by the proxy.
* @throws Error
* (optionally) Thrown if the verification failed.
*/
protected Object afterInvocation(Object retval) throws Error {
if (assertException) {
throw new ExceptionNotThrownAssertionError(clazz);
} else {
// return anything. the value does not matter
return retval;
}
}
/**
* Must be called by the subclass after the intercepted method invocation
* that has thrown a exception.
*
* @param e
* the exception thrown by the intercepted method invocation.
* @param method
* the method that was proxied
* @return Always returns null.
* @throws Error
* Thrown if the verification failed.
* @throws Exception
* The given exception. (Re-)thrown if the thrown exception
* shall not be caught and verification is not required.
*/
protected Object afterInvocationThrowsException(Exception e, Method method)
throws Error, Exception {
// is the thrown exception of the expected type?
if (!clazz.isAssignableFrom(e.getClass())) {
if (assertException) {
throw new ExceptionNotThrownAssertionError(clazz, e);
} else {
throw e;
}
} else {
// save the caught exception for further analysis
ExceptionHolder.set(e);
// return anything. the value does not matter but null could cause a
// NullPointerException while un-boxing
return safeReturnValue(method.getReturnType());
}
}
/**
* @param type
* a type
* @return Returns a value of the given type
*/
Object safeReturnValue(Class<?> type) {
if (!type.isPrimitive()) {
return null;
} else if (Void.TYPE.equals(type)) {
return null; // any value
} else if (Byte.TYPE.equals(type)) {
return (byte) 0;
} else if (Short.TYPE.equals(type)) {
return (short) 0;
} else if (Integer.TYPE.equals(type)) {
return (int) 0;
} else if (Long.TYPE.equals(type)) {
return (long) 0;
} else if (Float.TYPE.equals(type)) {
return (float) 0.0;
} else if (Double.TYPE.equals(type)) {
return (double) 0.0;
} else if (Boolean.TYPE.equals(type)) {
return (boolean) false;
} else if (Character.TYPE.equals(type)) {
return (char) ' ';
} else {
throw new IllegalArgumentException("Type " + type
+ " is not supported at the moment. Please file a bug.");
}
}
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception.internal;
import java.lang.reflect.Method;
import org.mockito.cglib.proxy.MethodInterceptor;
import org.mockito.cglib.proxy.MethodProxy;
/**
* This {@link AbstractExceptionProcessingInvocationHandler} implements
* {@link MethodInterceptor} for Mockito's cglib variant.
*
* @author rwoo
* @param <E>
* The type of the exception that shall be caught and (optionally)
* verified
*/
public class ExceptionProcessingInterceptor<E extends Exception>
extends AbstractExceptionProcessingInvocationHandler<E> implements
MethodInterceptor {
@SuppressWarnings("javadoc")
public ExceptionProcessingInterceptor(Object target,
Class<E> clazz, boolean assertException) {
super(target, clazz, assertException);
}
/*
* (non-Javadoc)
*
* @see
* org.mockito.cglib.proxy.MethodInterceptor#intercept(java.lang.Object,
* java.lang.reflect.Method, java.lang.Object[],
* org.mockito.cglib.proxy.MethodProxy)
*/
public Object intercept(Object obj, Method method, Object[] args,
MethodProxy proxy) throws Throwable {
beforeInvocation();
try {
Object retval = proxy.invoke(target, args);
return afterInvocation(retval);
} catch (Exception e) {
return afterInvocationThrowsException(e, method);
}
}
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception.internal;
/**
* Marks a proxy as generated by {@link SubclassProxyFactory}.
* This is useful for testing.
* <p>
* EXAMPLE:
* <code><pre class="prettyprint lang-java">assert new SubclassProxyFactory(...).createProxy(obj) instanceof SubclassProxy;
* </pre></code>
*
* @author rwoo
*/
public interface SubclassProxy {
// empty by purpose
}
| Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception.internal;
import org.mockito.cglib.proxy.MethodInterceptor;
/**
* Creates proxies.
*
* @author rwoo
*
*/
interface ProxyFactory {
/**
* Create a proxy.
*
* @param <T>
* The type parameter makes some casts redundant.
* @param targetClass
* the class the factory shall create a proxy for
* @param interceptor
* the method interceptor that shall be applied to all method
* calls.
* @return Returns the created proxy.
*/
public <T> T createProxy(Class<?> targetClass, MethodInterceptor interceptor);
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception.internal;
import java.lang.reflect.Method;
import org.mockito.cglib.proxy.MethodInterceptor;
import org.mockito.cglib.proxy.MethodProxy;
/**
* This interceptor delegates the method call to the target object.
*
* @author rwoo
*/
public class DelegatingInterceptor implements MethodInterceptor {
/**
* See {@link #DelegatingInterceptor(Object)}.
*/
private Object target;
/**
* @param target
* The object all method calls are delegated to. Must not be
* <code>null</code>.
*/
public DelegatingInterceptor(Object target) {
this.target = target;
}
/*
* (non-Javadoc)
*
* @see
* org.mockito.cglib.proxy.MethodInterceptor#intercept(java.lang.Object,
* java.lang.reflect.Method, java.lang.Object[],
* org.mockito.cglib.proxy.MethodProxy)
*/
public Object intercept(Object obj, Method method, Object[] args,
MethodProxy proxy) throws Throwable {
return proxy.invoke(target, args);
}
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/** This package contains types that do NOT
* belong to the public API of project catch-exception.
* The types of this package might change
* between micro-releases. */
package com.googlecode.catchexception.internal; | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception.internal;
import java.lang.ref.WeakReference;
/**
* Holds a caught exception {@link ThreadLocal per Thread}.
*
* @author rwoo
*
*/
public class ExceptionHolder {
/**
* The container for the most recently caught exception.
* <p>
* There is no need to use {@link WeakReference weak references} here as all
* the code is for testing so that we don't have to care about memory leaks.
*/
private static final ThreadLocal<Exception> caughtException = new ThreadLocal<Exception>();
/**
* Saves the given exception in {@link #caughtException}.
*
* @param <E>
* the type of the caught exception
* @param caughtException
* the caught exception
*/
public static <E extends Exception> void set(E caughtException) {
ExceptionHolder.caughtException.set(caughtException);
}
/**
* @param <E>
* the type of the caught exception
* @return Returns the caught exception. Returns null if there is no
* exception caught.
*/
@SuppressWarnings("unchecked")
public static <E extends Exception> E get() {
return (E) caughtException.get();
}
}
| Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception.internal;
import java.util.HashSet;
import java.util.Set;
import org.mockito.cglib.proxy.Enhancer;
import org.mockito.cglib.proxy.MethodInterceptor;
/**
* This {@link ProxyFactory} create proxies that implements all interfaces of
* the underlying object including the marker interface
* {@link InterfaceOnlyProxy}. But in contrast to the proxies created by
* {@link SubclassProxyFactory} such a proxy does not subclass the class of the
* underlying object.
*
* @author rwoo
*/
public class InterfaceOnlyProxyFactory implements ProxyFactory {
/*
* (non-Javadoc)
*
* @see
* com.googlecode.catchexception.internal.ProxyFactory#createProxy(java.
* lang.Class, org.mockito.cglib.proxy.MethodInterceptor)
*/
@SuppressWarnings("unchecked")
public <T> T createProxy(Class<?> targetClass, MethodInterceptor interceptor) {
// get all the interfaces (is there an easier way?)
Set<Class<?>> interfaces = new HashSet<Class<?>>();
Class<?> clazz = targetClass;
while (true) {
for (Class<?> interfaze : clazz.getInterfaces()) {
interfaces.add(interfaze);
}
if (clazz.getSuperclass() == null) {
break;
}
clazz = clazz.getSuperclass();
}
interfaces.add(InterfaceOnlyProxy.class);
return (T) Enhancer.create(Object.class,
interfaces.toArray(new Class<?>[interfaces.size()]),
interceptor);
}
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception.internal;
/**
* Marks a proxy as generated by {@link InterfaceOnlyProxyFactory}. This is useful for
* testing.
* <p>
* EXAMPLE:
* <code><pre class="prettyprint lang-java">assert new InterfaceOnlyProxyFactory(...).createProxy(obj) instanceof InterfaceOnlyProxy;
* </pre></code>
*
* @author rwoo
*/
public interface InterfaceOnlyProxy {
// empty by purpose
}
| Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception.internal;
import org.mockito.cglib.proxy.MethodInterceptor;
import org.mockito.exceptions.base.MockitoException;
import org.mockito.internal.creation.jmock.ClassImposterizer;
/**
* This {@link ProxyFactory} uses Mockito's jmock package to create proxies that
* subclass from the target's class.
*
* @author rwoo
*/
public class SubclassProxyFactory implements ProxyFactory {
/**
* That proxy factory is used if this factory cannot be used.
*/
private ProxyFactory fallbackProxyFactory = new InterfaceOnlyProxyFactory();
/*
* (non-Javadoc)
*
* @see
* com.googlecode.catchexception.internal.ProxyFactory#createProxy(java.
* lang.Object, java.lang.Class, boolean)
*/
@SuppressWarnings("unchecked")
public <T> T createProxy(Class<?> targetClass, MethodInterceptor interceptor) {
// can we subclass the class of the target?
if (!ClassImposterizer.INSTANCE.canImposterise(targetClass)) {
// delegate
return fallbackProxyFactory.<T> createProxy(targetClass,
interceptor);
}
// create proxy
T proxy;
try {
proxy = (T) ClassImposterizer.INSTANCE.imposterise(interceptor,
targetClass);
} catch (MockitoException e) {
// delegate
return fallbackProxyFactory.<T> createProxy(targetClass,
interceptor);
}
return proxy;
}
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception;
@SuppressWarnings("javadoc")
public class FinalMethodSomethingImpl extends PublicSomethingImpl {
public final void doIt() {
throw new IllegalArgumentException("test_abfdzuf");
}
@Override
final public void doThrow() {
super.doThrow();
}
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception;
@SuppressWarnings("javadoc")
public final class FinalSomethingImpl extends PublicSomethingImpl {
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception;
@SuppressWarnings("javadoc")
public class PublicSomethingImpl implements Something {
public PublicSomethingImpl() {
super();
}
public void doNothing() {
//
}
public void doThrow() {
throw new UnsupportedOperationException();
}
public void doesNotBelongToAnyInterface() {
//
}
public void doThrowAssertionError() {
throw new AssertionError(123);
}
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception;
@SuppressWarnings("javadoc")
public class ProtectedSomethingImpl extends PublicSomethingImpl {
protected ProtectedSomethingImpl() {
super();
}
} | Java |
/**
* Copyright (C) 2011 rwoo@gmx.de
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.catchexception;
@SuppressWarnings("javadoc")
public interface Something {
public void doNothing();
public void doThrow();
public void doThrowAssertionError();
} | Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm;
import static com.google.android.gcm.GCMConstants.ERROR_SERVICE_NOT_AVAILABLE;
import static com.google.android.gcm.GCMConstants.EXTRA_ERROR;
import static com.google.android.gcm.GCMConstants.EXTRA_REGISTRATION_ID;
import static com.google.android.gcm.GCMConstants.EXTRA_SPECIAL_MESSAGE;
import static com.google.android.gcm.GCMConstants.EXTRA_TOTAL_DELETED;
import static com.google.android.gcm.GCMConstants.EXTRA_UNREGISTERED;
import static com.google.android.gcm.GCMConstants.INTENT_FROM_GCM_LIBRARY_RETRY;
import static com.google.android.gcm.GCMConstants.INTENT_FROM_GCM_MESSAGE;
import static com.google.android.gcm.GCMConstants.INTENT_FROM_GCM_REGISTRATION_CALLBACK;
import static com.google.android.gcm.GCMConstants.VALUE_DELETED_MESSAGES;
import android.app.AlarmManager;
import android.app.IntentService;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.PowerManager;
import android.os.SystemClock;
import android.util.Log;
import java.util.Random;
import java.util.concurrent.TimeUnit;
/**
* Skeleton for application-specific {@link IntentService}s responsible for
* handling communication from Google Cloud Messaging service.
* <p>
* The abstract methods in this class are called from its worker thread, and
* hence should run in a limited amount of time. If they execute long
* operations, they should spawn new threads, otherwise the worker thread will
* be blocked.
*/
public abstract class GCMBaseIntentService extends IntentService {
public static final String TAG = "GCMBaseIntentService";
// wakelock
private static final String WAKELOCK_KEY = "GCM_LIB";
private static PowerManager.WakeLock sWakeLock;
// Java lock used to synchronize access to sWakelock
private static final Object LOCK = GCMBaseIntentService.class;
private final String mSenderId;
// instance counter
private static int sCounter = 0;
private static final Random sRandom = new Random();
private static final int MAX_BACKOFF_MS =
(int) TimeUnit.SECONDS.toMillis(3600); // 1 hour
// token used to check intent origin
private static final String TOKEN =
Long.toBinaryString(sRandom.nextLong());
private static final String EXTRA_TOKEN = "token";
/**
* Subclasses must create a public no-arg constructor and pass the
* sender id to be used for registration.
*/
protected GCMBaseIntentService(String senderId) {
// name is used as base name for threads, etc.
super("GCMIntentService-" + senderId + "-" + (++sCounter));
mSenderId = senderId;
}
/**
* Called when a cloud message has been received.
*
* @param context application's context.
* @param intent intent containing the message payload as extras.
*/
protected abstract void onMessage(Context context, Intent intent);
/**
* Called when the GCM server tells pending messages have been deleted
* because the device was idle.
*
* @param context application's context.
* @param total total number of collapsed messages
*/
protected void onDeletedMessages(Context context, int total) {
}
/**
* Called on a registration error that could be retried.
*
* <p>By default, it does nothing and returns {@literal true}, but could be
* overridden to change that behavior and/or display the error.
*
* @param context application's context.
* @param errorId error id returned by the GCM service.
*
* @return if {@literal true}, failed operation will be retried (using
* exponential backoff).
*/
protected boolean onRecoverableError(Context context, String errorId) {
return true;
}
/**
* Called on registration or unregistration error.
*
* @param context application's context.
* @param errorId error id returned by the GCM service.
*/
protected abstract void onError(Context context, String errorId);
/**
* Called after a device has been registered.
*
* @param context application's context.
* @param registrationId the registration id returned by the GCM service.
*/
protected abstract void onRegistered(Context context,
String registrationId);
/**
* Called after a device has been unregistered.
*
* @param registrationId the registration id that was previously registered.
* @param context application's context.
*/
protected abstract void onUnregistered(Context context,
String registrationId);
@Override
public final void onHandleIntent(Intent intent) {
try {
Context context = getApplicationContext();
String action = intent.getAction();
if (action.equals(INTENT_FROM_GCM_REGISTRATION_CALLBACK)) {
handleRegistration(context, intent);
} else if (action.equals(INTENT_FROM_GCM_MESSAGE)) {
// checks for special messages
String messageType =
intent.getStringExtra(EXTRA_SPECIAL_MESSAGE);
if (messageType != null) {
if (messageType.equals(VALUE_DELETED_MESSAGES)) {
String sTotal =
intent.getStringExtra(EXTRA_TOTAL_DELETED);
if (sTotal != null) {
try {
int total = Integer.parseInt(sTotal);
Log.v(TAG, "Received deleted messages " +
"notification: " + total);
onDeletedMessages(context, total);
} catch (NumberFormatException e) {
Log.e(TAG, "GCM returned invalid number of " +
"deleted messages: " + sTotal);
}
}
} else {
// application is not using the latest GCM library
Log.e(TAG, "Received unknown special message: " +
messageType);
}
} else {
onMessage(context, intent);
}
} else if (action.equals(INTENT_FROM_GCM_LIBRARY_RETRY)) {
String token = intent.getStringExtra(EXTRA_TOKEN);
if (!TOKEN.equals(token)) {
// make sure intent was generated by this class, not by a
// malicious app.
Log.e(TAG, "Received invalid token: " + token);
return;
}
// retry last call
if (GCMRegistrar.isRegistered(context)) {
GCMRegistrar.internalUnregister(context);
} else {
GCMRegistrar.internalRegister(context, mSenderId);
}
}
} finally {
// Release the power lock, so phone can get back to sleep.
// The lock is reference-counted by default, so multiple
// messages are ok.
// If onMessage() needs to spawn a thread or do something else,
// it should use its own lock.
synchronized (LOCK) {
// sanity check for null as this is a public method
if (sWakeLock != null) {
Log.v(TAG, "Releasing wakelock");
sWakeLock.release();
} else {
// should never happen during normal workflow
Log.e(TAG, "Wakelock reference is null");
}
}
}
}
/**
* Called from the broadcast receiver.
* <p>
* Will process the received intent, call handleMessage(), registered(),
* etc. in background threads, with a wake lock, while keeping the service
* alive.
*/
static void runIntentInService(Context context, Intent intent,
String className) {
synchronized (LOCK) {
if (sWakeLock == null) {
// This is called from BroadcastReceiver, there is no init.
PowerManager pm = (PowerManager)
context.getSystemService(Context.POWER_SERVICE);
sWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
WAKELOCK_KEY);
}
}
Log.v(TAG, "Acquiring wakelock");
sWakeLock.acquire();
intent.setClassName(context, className);
context.startService(intent);
}
private void handleRegistration(final Context context, Intent intent) {
String registrationId = intent.getStringExtra(EXTRA_REGISTRATION_ID);
String error = intent.getStringExtra(EXTRA_ERROR);
String unregistered = intent.getStringExtra(EXTRA_UNREGISTERED);
Log.d(TAG, "handleRegistration: registrationId = " + registrationId +
", error = " + error + ", unregistered = " + unregistered);
// registration succeeded
if (registrationId != null) {
GCMRegistrar.resetBackoff(context);
GCMRegistrar.setRegistrationId(context, registrationId);
onRegistered(context, registrationId);
return;
}
// unregistration succeeded
if (unregistered != null) {
// Remember we are unregistered
GCMRegistrar.resetBackoff(context);
String oldRegistrationId =
GCMRegistrar.clearRegistrationId(context);
onUnregistered(context, oldRegistrationId);
return;
}
// last operation (registration or unregistration) returned an error;
Log.d(TAG, "Registration error: " + error);
// Registration failed
if (ERROR_SERVICE_NOT_AVAILABLE.equals(error)) {
boolean retry = onRecoverableError(context, error);
if (retry) {
int backoffTimeMs = GCMRegistrar.getBackoff(context);
int nextAttempt = backoffTimeMs / 2 +
sRandom.nextInt(backoffTimeMs);
Log.d(TAG, "Scheduling registration retry, backoff = " +
nextAttempt + " (" + backoffTimeMs + ")");
Intent retryIntent =
new Intent(INTENT_FROM_GCM_LIBRARY_RETRY);
retryIntent.putExtra(EXTRA_TOKEN, TOKEN);
PendingIntent retryPendingIntent = PendingIntent
.getBroadcast(context, 0, retryIntent, 0);
AlarmManager am = (AlarmManager)
context.getSystemService(Context.ALARM_SERVICE);
am.set(AlarmManager.ELAPSED_REALTIME,
SystemClock.elapsedRealtime() + nextAttempt,
retryPendingIntent);
// Next retry should wait longer.
if (backoffTimeMs < MAX_BACKOFF_MS) {
GCMRegistrar.setBackoff(context, backoffTimeMs * 2);
}
} else {
Log.d(TAG, "Not retrying failed operation");
}
} else {
// Unrecoverable error, notify app
onError(context, error);
}
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.os.Build;
import android.util.Log;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* Utilities for device registration.
* <p>
* <strong>Note:</strong> this class uses a private {@link SharedPreferences}
* object to keep track of the registration token.
*/
public final class GCMRegistrar {
private static final String TAG = "GCMRegistrar";
private static final String BACKOFF_MS = "backoff_ms";
private static final String GSF_PACKAGE = "com.google.android.gsf";
private static final String PREFERENCES = "com.google.android.gcm";
private static final int DEFAULT_BACKOFF_MS = 3000;
private static final String PROPERTY_REG_ID = "regId";
private static final String PROPERTY_APP_VERSION = "appVersion";
private static final String PROPERTY_ON_SERVER = "onServer";
/**
* {@link GCMBroadcastReceiver} instance used to handle the retry intent.
*
* <p>
* This instance cannot be the same as the one defined in the manifest
* because it needs a different permission.
*/
private static GCMBroadcastReceiver sRetryReceiver;
/**
* Checks if the device has the proper dependencies installed.
* <p>
* This method should be called when the application starts to verify that
* the device supports GCM.
*
* @param context application context.
* @throws UnsupportedOperationException if the device does not support GCM.
*/
public static void checkDevice(Context context) {
int version = Build.VERSION.SDK_INT;
if (version < 8) {
throw new UnsupportedOperationException("Device must be at least " +
"API Level 8 (instead of " + version + ")");
}
PackageManager packageManager = context.getPackageManager();
try {
packageManager.getPackageInfo(GSF_PACKAGE, 0);
} catch (NameNotFoundException e) {
throw new UnsupportedOperationException(
"Device does not have package " + GSF_PACKAGE);
}
}
/**
* Checks that the application manifest is properly configured.
* <p>
* A proper configuration means:
* <ol>
* <li>It creates a custom permission called
* {@code PACKAGE_NAME.permission.C2D_MESSAGE}.
* <li>It defines at least one {@link BroadcastReceiver} with category
* {@code PACKAGE_NAME}.
* <li>The {@link BroadcastReceiver}(s) uses the
* {@value GCMConstants#PERMISSION_GCM_INTENTS} permission.
* <li>The {@link BroadcastReceiver}(s) handles the 3 GCM intents
* ({@value GCMConstants#INTENT_FROM_GCM_MESSAGE},
* {@value GCMConstants#INTENT_FROM_GCM_REGISTRATION_CALLBACK},
* and {@value GCMConstants#INTENT_FROM_GCM_LIBRARY_RETRY}).
* </ol>
* ...where {@code PACKAGE_NAME} is the application package.
* <p>
* This method should be used during development time to verify that the
* manifest is properly set up, but it doesn't need to be called once the
* application is deployed to the users' devices.
*
* @param context application context.
* @throws IllegalStateException if any of the conditions above is not met.
*/
public static void checkManifest(Context context) {
PackageManager packageManager = context.getPackageManager();
String packageName = context.getPackageName();
String permissionName = packageName + ".permission.C2D_MESSAGE";
// check permission
try {
packageManager.getPermissionInfo(permissionName,
PackageManager.GET_PERMISSIONS);
} catch (NameNotFoundException e) {
throw new IllegalStateException(
"Application does not define permission " + permissionName);
}
// check receivers
PackageInfo receiversInfo;
try {
receiversInfo = packageManager.getPackageInfo(
packageName, PackageManager.GET_RECEIVERS);
} catch (NameNotFoundException e) {
throw new IllegalStateException(
"Could not get receivers for package " + packageName);
}
ActivityInfo[] receivers = receiversInfo.receivers;
if (receivers == null || receivers.length == 0) {
throw new IllegalStateException("No receiver for package " +
packageName);
}
if (Log.isLoggable(TAG, Log.VERBOSE)) {
Log.v(TAG, "number of receivers for " + packageName + ": " +
receivers.length);
}
Set<String> allowedReceivers = new HashSet<String>();
for (ActivityInfo receiver : receivers) {
if (GCMConstants.PERMISSION_GCM_INTENTS.equals(
receiver.permission)) {
allowedReceivers.add(receiver.name);
}
}
if (allowedReceivers.isEmpty()) {
throw new IllegalStateException("No receiver allowed to receive " +
GCMConstants.PERMISSION_GCM_INTENTS);
}
checkReceiver(context, allowedReceivers,
GCMConstants.INTENT_FROM_GCM_REGISTRATION_CALLBACK);
checkReceiver(context, allowedReceivers,
GCMConstants.INTENT_FROM_GCM_MESSAGE);
}
private static void checkReceiver(Context context,
Set<String> allowedReceivers, String action) {
PackageManager pm = context.getPackageManager();
String packageName = context.getPackageName();
Intent intent = new Intent(action);
intent.setPackage(packageName);
List<ResolveInfo> receivers = pm.queryBroadcastReceivers(intent,
PackageManager.GET_INTENT_FILTERS);
if (receivers.isEmpty()) {
throw new IllegalStateException("No receivers for action " +
action);
}
if (Log.isLoggable(TAG, Log.VERBOSE)) {
Log.v(TAG, "Found " + receivers.size() + " receivers for action " +
action);
}
// make sure receivers match
for (ResolveInfo receiver : receivers) {
String name = receiver.activityInfo.name;
if (! allowedReceivers.contains(name)) {
throw new IllegalStateException("Receiver " + name +
" is not set with permission " +
GCMConstants.PERMISSION_GCM_INTENTS);
}
}
}
/**
* Initiate messaging registration for the current application.
* <p>
* The result will be returned as an
* {@link GCMConstants#INTENT_FROM_GCM_REGISTRATION_CALLBACK} intent with
* either a {@link GCMConstants#EXTRA_REGISTRATION_ID} or
* {@link GCMConstants#EXTRA_ERROR}.
*
* @param context application context.
* @param senderIds Google Project ID of the accounts authorized to send
* messages to this application.
* @throws IllegalStateException if device does not have all GCM
* dependencies installed.
*/
public static void register(Context context, String... senderIds) {
setRetryBroadcastReceiver(context);
GCMRegistrar.resetBackoff(context);
internalRegister(context, senderIds);
}
static void internalRegister(Context context, String... senderIds) {
if (senderIds == null || senderIds.length == 0 ) {
throw new IllegalArgumentException("No senderIds");
}
StringBuilder builder = new StringBuilder(senderIds[0]);
for (int i = 1; i < senderIds.length; i++) {
builder.append(',').append(senderIds[i]);
}
String senders = builder.toString();
Log.v(TAG, "Registering app " + context.getPackageName() +
" of senders " + senders);
Intent intent = new Intent(GCMConstants.INTENT_TO_GCM_REGISTRATION);
intent.setPackage(GSF_PACKAGE);
intent.putExtra(GCMConstants.EXTRA_APPLICATION_PENDING_INTENT,
PendingIntent.getBroadcast(context, 0, new Intent(), 0));
intent.putExtra(GCMConstants.EXTRA_SENDER, senders);
context.startService(intent);
}
/**
* Unregister the application.
* <p>
* The result will be returned as an
* {@link GCMConstants#INTENT_FROM_GCM_REGISTRATION_CALLBACK} intent with an
* {@link GCMConstants#EXTRA_UNREGISTERED} extra.
*/
public static void unregister(Context context) {
setRetryBroadcastReceiver(context);
GCMRegistrar.resetBackoff(context);
internalUnregister(context);
}
/**
* Clear internal resources.
*
* <p>
* This method should be called by the main activity's {@code onDestroy()}
* method.
*/
public static synchronized void onDestroy(Context context) {
if (sRetryReceiver != null) {
Log.v(TAG, "Unregistering receiver");
context.unregisterReceiver(sRetryReceiver);
sRetryReceiver = null;
}
}
static void internalUnregister(Context context) {
Log.v(TAG, "Unregistering app " + context.getPackageName() );
Intent intent = new Intent(GCMConstants.INTENT_TO_GCM_UNREGISTRATION);
intent.setPackage(GSF_PACKAGE);
intent.putExtra(GCMConstants.EXTRA_APPLICATION_PENDING_INTENT,
PendingIntent.getBroadcast(context, 0, new Intent(), 0));
context.startService(intent);
}
/**
* Lazy initializes the {@link GCMBroadcastReceiver} instance.
*/
private static synchronized void setRetryBroadcastReceiver(Context context) {
if (sRetryReceiver == null) {
sRetryReceiver = new GCMBroadcastReceiver();
String category = context.getPackageName();
IntentFilter filter = new IntentFilter(
GCMConstants.INTENT_FROM_GCM_LIBRARY_RETRY);
filter.addCategory(category);
// must use a permission that is defined on manifest for sure
String permission = category + ".permission.C2D_MESSAGE";
Log.v(TAG, "Registering receiver");
context.registerReceiver(sRetryReceiver, filter, permission, null);
}
}
/**
* Gets the current registration id for application on GCM service.
* <p>
* If result is empty, the registration has failed.
*
* @return registration id, or empty string if the registration is not
* complete.
*/
public static String getRegistrationId(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
String registrationId = prefs.getString(PROPERTY_REG_ID, "");
// check if app was updated; if so, it must clear registration id to
// avoid a race condition if GCM sends a message
int oldVersion = prefs.getInt(PROPERTY_APP_VERSION, Integer.MIN_VALUE);
int newVersion = getAppVersion(context);
if (oldVersion != Integer.MIN_VALUE && oldVersion != newVersion) {
Log.v(TAG, "App version changed from " + oldVersion + " to " +
newVersion + "; resetting registration id");
clearRegistrationId(context);
registrationId = "";
}
return registrationId;
}
/**
* Checks whether the application was successfully registered on GCM
* service.
*/
public static boolean isRegistered(Context context) {
return getRegistrationId(context).length() > 0;
}
/**
* Clears the registration id in the persistence store.
*
* @param context application's context.
* @return old registration id.
*/
static String clearRegistrationId(Context context) {
return setRegistrationId(context, "");
}
/**
* Sets the registration id in the persistence store.
*
* @param context application's context.
* @param regId registration id
*/
static String setRegistrationId(Context context, String regId) {
final SharedPreferences prefs = getGCMPreferences(context);
String oldRegistrationId = prefs.getString(PROPERTY_REG_ID, "");
int appVersion = getAppVersion(context);
Log.v(TAG, "Saving regId on app version " + appVersion);
Editor editor = prefs.edit();
editor.putString(PROPERTY_REG_ID, regId);
editor.putInt(PROPERTY_APP_VERSION, appVersion);
editor.commit();
return oldRegistrationId;
}
/**
* Sets whether the device was successfully registered in the server side.
*/
public static void setRegisteredOnServer(Context context, boolean flag) {
final SharedPreferences prefs = getGCMPreferences(context);
Log.v(TAG, "Setting registered on server status as: " + flag);
Editor editor = prefs.edit();
editor.putBoolean(PROPERTY_ON_SERVER, flag);
editor.commit();
}
/**
* Checks whether the device was successfully registered in the server side.
*/
public static boolean isRegisteredOnServer(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
boolean isRegistered = prefs.getBoolean(PROPERTY_ON_SERVER, false);
Log.v(TAG, "Is registered on server: " + isRegistered);
return isRegistered;
}
/**
* Gets the application version.
*/
private static int getAppVersion(Context context) {
try {
PackageInfo packageInfo = context.getPackageManager()
.getPackageInfo(context.getPackageName(),0);
return packageInfo.versionCode;
} catch (NameNotFoundException e) {
// should never happen
throw new RuntimeException("Coult not get package name: " + e);
}
}
/**
* Resets the backoff counter.
* <p>
* This method should be called after a GCM call succeeds.
*
* @param context application's context.
*/
static void resetBackoff(Context context) {
Log.d(TAG, "resetting backoff for " + context.getPackageName());
setBackoff(context, DEFAULT_BACKOFF_MS);
}
/**
* Gets the current backoff counter.
*
* @param context application's context.
* @return current backoff counter, in milliseconds.
*/
static int getBackoff(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
return prefs.getInt(BACKOFF_MS, DEFAULT_BACKOFF_MS);
}
/**
* Sets the backoff counter.
* <p>
* This method should be called after a GCM call fails, passing an
* exponential value.
*
* @param context application's context.
* @param backoff new backoff counter, in milliseconds.
*/
static void setBackoff(Context context, int backoff) {
final SharedPreferences prefs = getGCMPreferences(context);
Editor editor = prefs.edit();
editor.putInt(BACKOFF_MS, backoff);
editor.commit();
}
private static SharedPreferences getGCMPreferences(Context context) {
return context.getSharedPreferences(PREFERENCES, Context.MODE_PRIVATE);
}
private GCMRegistrar() {
throw new UnsupportedOperationException();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm;
/**
* Constants used by the GCM library.
*/
public final class GCMConstants {
/**
* Intent sent to GCM to register the application.
*/
public static final String INTENT_TO_GCM_REGISTRATION =
"com.google.android.c2dm.intent.REGISTER";
/**
* Intent sent to GCM to unregister the application.
*/
public static final String INTENT_TO_GCM_UNREGISTRATION =
"com.google.android.c2dm.intent.UNREGISTER";
/**
* Intent sent by GCM indicating with the result of a registration request.
*/
public static final String INTENT_FROM_GCM_REGISTRATION_CALLBACK =
"com.google.android.c2dm.intent.REGISTRATION";
/**
* Intent used by the GCM library to indicate that the registration call
* should be retried.
*/
public static final String INTENT_FROM_GCM_LIBRARY_RETRY =
"com.google.android.gcm.intent.RETRY";
/**
* Intent sent by GCM containing a message.
*/
public static final String INTENT_FROM_GCM_MESSAGE =
"com.google.android.c2dm.intent.RECEIVE";
/**
* Extra used on {@link #INTENT_TO_GCM_REGISTRATION} to indicate the sender
* account (a Google email) that owns the application.
*/
public static final String EXTRA_SENDER = "sender";
/**
* Extra used on {@link #INTENT_TO_GCM_REGISTRATION} to get the application
* id.
*/
public static final String EXTRA_APPLICATION_PENDING_INTENT = "app";
/**
* Extra used on {@link #INTENT_FROM_GCM_REGISTRATION_CALLBACK} to indicate
* that the application has been unregistered.
*/
public static final String EXTRA_UNREGISTERED = "unregistered";
/**
* Extra used on {@link #INTENT_FROM_GCM_REGISTRATION_CALLBACK} to indicate
* an error when the registration fails. See constants starting with ERROR_
* for possible values.
*/
public static final String EXTRA_ERROR = "error";
/**
* Extra used on {@link #INTENT_FROM_GCM_REGISTRATION_CALLBACK} to indicate
* the registration id when the registration succeeds.
*/
public static final String EXTRA_REGISTRATION_ID = "registration_id";
/**
* Type of message present in the {@link #INTENT_FROM_GCM_MESSAGE} intent.
* This extra is only set for special messages sent from GCM, not for
* messages originated from the application.
*/
public static final String EXTRA_SPECIAL_MESSAGE = "message_type";
/**
* Special message indicating the server deleted the pending messages.
*/
public static final String VALUE_DELETED_MESSAGES = "deleted_messages";
/**
* Number of messages deleted by the server because the device was idle.
* Present only on messages of special type
* {@link #VALUE_DELETED_MESSAGES}
*/
public static final String EXTRA_TOTAL_DELETED = "total_deleted";
/**
* Permission necessary to receive GCM intents.
*/
public static final String PERMISSION_GCM_INTENTS =
"com.google.android.c2dm.permission.SEND";
/**
* @see GCMBroadcastReceiver
*/
public static final String DEFAULT_INTENT_SERVICE_CLASS_NAME =
".GCMIntentService";
/**
* The device can't read the response, or there was a 500/503 from the
* server that can be retried later. The application should use exponential
* back off and retry.
*/
public static final String ERROR_SERVICE_NOT_AVAILABLE =
"SERVICE_NOT_AVAILABLE";
/**
* There is no Google account on the phone. The application should ask the
* user to open the account manager and add a Google account.
*/
public static final String ERROR_ACCOUNT_MISSING =
"ACCOUNT_MISSING";
/**
* Bad password. The application should ask the user to enter his/her
* password, and let user retry manually later. Fix on the device side.
*/
public static final String ERROR_AUTHENTICATION_FAILED =
"AUTHENTICATION_FAILED";
/**
* The request sent by the phone does not contain the expected parameters.
* This phone doesn't currently support GCM.
*/
public static final String ERROR_INVALID_PARAMETERS =
"INVALID_PARAMETERS";
/**
* The sender account is not recognized. Fix on the device side.
*/
public static final String ERROR_INVALID_SENDER =
"INVALID_SENDER";
/**
* Incorrect phone registration with Google. This phone doesn't currently
* support GCM.
*/
public static final String ERROR_PHONE_REGISTRATION_ERROR =
"PHONE_REGISTRATION_ERROR";
private GCMConstants() {
throw new UnsupportedOperationException();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm;
import static com.google.android.gcm.GCMConstants.DEFAULT_INTENT_SERVICE_CLASS_NAME;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
/**
* {@link BroadcastReceiver} that receives GCM messages and delivers them to
* an application-specific {@link GCMBaseIntentService} subclass.
* <p>
* By default, the {@link GCMBaseIntentService} class belongs to the application
* main package and is named
* {@link GCMConstants#DEFAULT_INTENT_SERVICE_CLASS_NAME}. To use a new class,
* the {@link #getGCMIntentServiceClassName(Context)} must be overridden.
*/
public class GCMBroadcastReceiver extends BroadcastReceiver {
private static final String TAG = "GCMBroadcastReceiver";
@Override
public final void onReceive(Context context, Intent intent) {
Log.v(TAG, "onReceive: " + intent.getAction());
String className = getGCMIntentServiceClassName(context);
Log.v(TAG, "GCM IntentService class: " + className);
// Delegates to the application-specific intent service.
GCMBaseIntentService.runIntentInService(context, intent, className);
setResult(Activity.RESULT_OK, null /* data */, null /* extra */);
}
/**
* Gets the class name of the intent service that will handle GCM messages.
*/
protected String getGCMIntentServiceClassName(Context context) {
String className = context.getPackageName() +
DEFAULT_INTENT_SERVICE_CLASS_NAME;
return className;
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import java.io.IOException;
/**
* Exception thrown when GCM returned an error due to an invalid request.
* <p>
* This is equivalent to GCM posts that return an HTTP error different of 200.
*/
public final class InvalidRequestException extends IOException {
private final int status;
private final String description;
public InvalidRequestException(int status) {
this(status, null);
}
public InvalidRequestException(int status, String description) {
super(getMessage(status, description));
this.status = status;
this.description = description;
}
private static String getMessage(int status, String description) {
StringBuilder base = new StringBuilder("HTTP Status Code: ").append(status);
if (description != null) {
base.append("(").append(description).append(")");
}
return base.toString();
}
/**
* Gets the HTTP Status Code.
*/
public int getHttpStatusCode() {
return status;
}
/**
* Gets the error description.
*/
public String getDescription() {
return description;
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import java.io.Serializable;
/**
* Result of a GCM message request that returned HTTP status code 200.
*
* <p>
* If the message is successfully created, the {@link #getMessageId()} returns
* the message id and {@link #getErrorCodeName()} returns {@literal null};
* otherwise, {@link #getMessageId()} returns {@literal null} and
* {@link #getErrorCodeName()} returns the code of the error.
*
* <p>
* There are cases when a request is accept and the message successfully
* created, but GCM has a canonical registration id for that device. In this
* case, the server should update the registration id to avoid rejected requests
* in the future.
*
* <p>
* In a nutshell, the workflow to handle a result is:
* <pre>
* - Call {@link #getMessageId()}:
* - {@literal null} means error, call {@link #getErrorCodeName()}
* - non-{@literal null} means the message was created:
* - Call {@link #getCanonicalRegistrationId()}
* - if it returns {@literal null}, do nothing.
* - otherwise, update the server datastore with the new id.
* </pre>
*/
public final class Result implements Serializable {
private final String messageId;
private final String canonicalRegistrationId;
private final String errorCode;
static final class Builder {
// optional parameters
private String messageId;
private String canonicalRegistrationId;
private String errorCode;
public Builder canonicalRegistrationId(String value) {
canonicalRegistrationId = value;
return this;
}
public Builder messageId(String value) {
messageId = value;
return this;
}
public Builder errorCode(String value) {
errorCode = value;
return this;
}
public Result build() {
return new Result(this);
}
}
private Result(Builder builder) {
canonicalRegistrationId = builder.canonicalRegistrationId;
messageId = builder.messageId;
errorCode = builder.errorCode;
}
/**
* Gets the message id, if any.
*/
public String getMessageId() {
return messageId;
}
/**
* Gets the canonical registration id, if any.
*/
public String getCanonicalRegistrationId() {
return canonicalRegistrationId;
}
/**
* Gets the error code, if any.
*/
public String getErrorCodeName() {
return errorCode;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder("[");
if (messageId != null) {
builder.append(" messageId=").append(messageId);
}
if (canonicalRegistrationId != null) {
builder.append(" canonicalRegistrationId=")
.append(canonicalRegistrationId);
}
if (errorCode != null) {
builder.append(" errorCode=").append(errorCode);
}
return builder.append(" ]").toString();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import static com.google.android.gcm.server.Constants.GCM_SEND_ENDPOINT;
import static com.google.android.gcm.server.Constants.JSON_CANONICAL_IDS;
import static com.google.android.gcm.server.Constants.JSON_ERROR;
import static com.google.android.gcm.server.Constants.JSON_FAILURE;
import static com.google.android.gcm.server.Constants.JSON_MESSAGE_ID;
import static com.google.android.gcm.server.Constants.JSON_MULTICAST_ID;
import static com.google.android.gcm.server.Constants.JSON_PAYLOAD;
import static com.google.android.gcm.server.Constants.JSON_REGISTRATION_IDS;
import static com.google.android.gcm.server.Constants.JSON_RESULTS;
import static com.google.android.gcm.server.Constants.JSON_SUCCESS;
import static com.google.android.gcm.server.Constants.PARAM_COLLAPSE_KEY;
import static com.google.android.gcm.server.Constants.PARAM_DELAY_WHILE_IDLE;
import static com.google.android.gcm.server.Constants.PARAM_PAYLOAD_PREFIX;
import static com.google.android.gcm.server.Constants.PARAM_REGISTRATION_ID;
import static com.google.android.gcm.server.Constants.PARAM_TIME_TO_LIVE;
import static com.google.android.gcm.server.Constants.TOKEN_CANONICAL_REG_ID;
import static com.google.android.gcm.server.Constants.TOKEN_ERROR;
import static com.google.android.gcm.server.Constants.TOKEN_MESSAGE_ID;
import com.google.android.gcm.server.Result.Builder;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Random;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Helper class to send messages to the GCM service using an API Key.
*/
public class Sender {
protected static final String UTF8 = "UTF-8";
/**
* Initial delay before first retry, without jitter.
*/
protected static final int BACKOFF_INITIAL_DELAY = 1000;
/**
* Maximum delay before a retry.
*/
protected static final int MAX_BACKOFF_DELAY = 1024000;
protected final Random random = new Random();
protected final Logger logger = Logger.getLogger(getClass().getName());
private final String key;
/**
* Default constructor.
*
* @param key API key obtained through the Google API Console.
*/
public Sender(String key) {
this.key = nonNull(key);
}
/**
* Sends a message to one device, retrying in case of unavailability.
*
* <p>
* <strong>Note: </strong> this method uses exponential back-off to retry in
* case of service unavailability and hence could block the calling thread
* for many seconds.
*
* @param message message to be sent, including the device's registration id.
* @param registrationId device where the message will be sent.
* @param retries number of retries in case of service unavailability errors.
*
* @return result of the request (see its javadoc for more details)
*
* @throws IllegalArgumentException if registrationId is {@literal null}.
* @throws InvalidRequestException if GCM didn't returned a 200 or 503 status.
* @throws IOException if message could not be sent.
*/
public Result send(Message message, String registrationId, int retries)
throws IOException {
int attempt = 0;
Result result = null;
int backoff = BACKOFF_INITIAL_DELAY;
boolean tryAgain;
do {
attempt++;
if (logger.isLoggable(Level.FINE)) {
logger.fine("Attempt #" + attempt + " to send message " +
message + " to regIds " + registrationId);
}
result = sendNoRetry(message, registrationId);
tryAgain = result == null && attempt <= retries;
if (tryAgain) {
int sleepTime = backoff / 2 + random.nextInt(backoff);
sleep(sleepTime);
if (2 * backoff < MAX_BACKOFF_DELAY) {
backoff *= 2;
}
}
} while (tryAgain);
if (result == null) {
throw new IOException("Could not send message after " + attempt +
" attempts");
}
return result;
}
/**
* Sends a message without retrying in case of service unavailability. See
* {@link #send(Message, String, int)} for more info.
*
* @return result of the post, or {@literal null} if the GCM service was
* unavailable.
*
* @throws InvalidRequestException if GCM didn't returned a 200 or 503 status.
* @throws IllegalArgumentException if registrationId is {@literal null}.
*/
public Result sendNoRetry(Message message, String registrationId)
throws IOException {
StringBuilder body = newBody(PARAM_REGISTRATION_ID, registrationId);
Boolean delayWhileIdle = message.isDelayWhileIdle();
if (delayWhileIdle != null) {
addParameter(body, PARAM_DELAY_WHILE_IDLE, delayWhileIdle ? "1" : "0");
}
String collapseKey = message.getCollapseKey();
if (collapseKey != null) {
addParameter(body, PARAM_COLLAPSE_KEY, collapseKey);
}
Integer timeToLive = message.getTimeToLive();
if (timeToLive != null) {
addParameter(body, PARAM_TIME_TO_LIVE, Integer.toString(timeToLive));
}
for (Entry<String, String> entry : message.getData().entrySet()) {
String key = PARAM_PAYLOAD_PREFIX + entry.getKey();
String value = entry.getValue();
addParameter(body, key, URLEncoder.encode(value, UTF8));
}
String requestBody = body.toString();
logger.finest("Request body: " + requestBody);
HttpURLConnection conn = post(GCM_SEND_ENDPOINT, requestBody);
int status = conn.getResponseCode();
if (status == 503) {
logger.fine("GCM service is unavailable");
return null;
}
if (status != 200) {
throw new InvalidRequestException(status);
}
try {
BufferedReader reader =
new BufferedReader(new InputStreamReader(conn.getInputStream()));
try {
String line = reader.readLine();
if (line == null || line.equals("")) {
throw new IOException("Received empty response from GCM service.");
}
String[] responseParts = split(line);
String token = responseParts[0];
String value = responseParts[1];
if (token.equals(TOKEN_MESSAGE_ID)) {
Builder builder = new Result.Builder().messageId(value);
// check for canonical registration id
line = reader.readLine();
if (line != null) {
responseParts = split(line);
token = responseParts[0];
value = responseParts[1];
if (token.equals(TOKEN_CANONICAL_REG_ID)) {
builder.canonicalRegistrationId(value);
} else {
logger.warning("Received invalid second line from GCM: " + line);
}
}
Result result = builder.build();
if (logger.isLoggable(Level.FINE)) {
logger.fine("Message created succesfully (" + result + ")");
}
return result;
} else if (token.equals(TOKEN_ERROR)) {
return new Result.Builder().errorCode(value).build();
} else {
throw new IOException("Received invalid response from GCM: " + line);
}
} finally {
reader.close();
}
} finally {
conn.disconnect();
}
}
/**
* Sends a message to many devices, retrying in case of unavailability.
*
* <p>
* <strong>Note: </strong> this method uses exponential back-off to retry in
* case of service unavailability and hence could block the calling thread
* for many seconds.
*
* @param message message to be sent.
* @param regIds registration id of the devices that will receive
* the message.
* @param retries number of retries in case of service unavailability errors.
*
* @return combined result of all requests made.
*
* @throws IllegalArgumentException if registrationIds is {@literal null} or
* empty.
* @throws InvalidRequestException if GCM didn't returned a 200 or 503 status.
* @throws IOException if message could not be sent.
*/
public MulticastResult send(Message message, List<String> regIds, int retries)
throws IOException {
int attempt = 0;
MulticastResult multicastResult = null;
int backoff = BACKOFF_INITIAL_DELAY;
// Map of results by registration id, it will be updated after each attempt
// to send the messages
Map<String, Result> results = new HashMap<String, Result>();
List<String> unsentRegIds = new ArrayList<String>(regIds);
boolean tryAgain;
List<Long> multicastIds = new ArrayList<Long>();
do {
attempt++;
if (logger.isLoggable(Level.FINE)) {
logger.fine("Attempt #" + attempt + " to send message " +
message + " to regIds " + unsentRegIds);
}
multicastResult = sendNoRetry(message, unsentRegIds);
long multicastId = multicastResult.getMulticastId();
logger.fine("multicast_id on attempt # " + attempt + ": " +
multicastId);
multicastIds.add(multicastId);
unsentRegIds = updateStatus(unsentRegIds, results, multicastResult);
tryAgain = !unsentRegIds.isEmpty() && attempt <= retries;
if (tryAgain) {
int sleepTime = backoff / 2 + random.nextInt(backoff);
sleep(sleepTime);
if (2 * backoff < MAX_BACKOFF_DELAY) {
backoff *= 2;
}
}
} while (tryAgain);
// calculate summary
int success = 0, failure = 0 , canonicalIds = 0;
for (Result result : results.values()) {
if (result.getMessageId() != null) {
success++;
if (result.getCanonicalRegistrationId() != null) {
canonicalIds++;
}
} else {
failure++;
}
}
// build a new object with the overall result
long multicastId = multicastIds.remove(0);
MulticastResult.Builder builder = new MulticastResult.Builder(success,
failure, canonicalIds, multicastId).retryMulticastIds(multicastIds);
// add results, in the same order as the input
for (String regId : regIds) {
Result result = results.get(regId);
builder.addResult(result);
}
return builder.build();
}
/**
* Updates the status of the messages sent to devices and the list of devices
* that should be retried.
*
* @param unsentRegIds list of devices that are still pending an update.
* @param allResults map of status that will be updated.
* @param multicastResult result of the last multicast sent.
*
* @return updated version of devices that should be retried.
*/
private List<String> updateStatus(List<String> unsentRegIds,
Map<String, Result> allResults, MulticastResult multicastResult) {
List<Result> results = multicastResult.getResults();
if (results.size() != unsentRegIds.size()) {
// should never happen, unless there is a flaw in the algorithm
throw new RuntimeException("Internal error: sizes do not match. " +
"currentResults: " + results + "; unsentRegIds: " + unsentRegIds);
}
List<String> newUnsentRegIds = new ArrayList<String>();
for (int i = 0; i < unsentRegIds.size(); i++) {
String regId = unsentRegIds.get(i);
Result result = results.get(i);
allResults.put(regId, result);
String error = result.getErrorCodeName();
if (error != null && error.equals(Constants.ERROR_UNAVAILABLE)) {
newUnsentRegIds.add(regId);
}
}
return newUnsentRegIds;
}
/**
* Sends a message without retrying in case of service unavailability. See
* {@link #send(Message, List, int)} for more info.
*
* @return {@literal true} if the message was sent successfully,
* {@literal false} if it failed but could be retried.
*
* @throws IllegalArgumentException if registrationIds is {@literal null} or
* empty.
* @throws InvalidRequestException if GCM didn't returned a 200 status.
* @throws IOException if message could not be sent or received.
*/
public MulticastResult sendNoRetry(Message message,
List<String> registrationIds) throws IOException {
if (nonNull(registrationIds).isEmpty()) {
throw new IllegalArgumentException("registrationIds cannot be empty");
}
Map<Object, Object> jsonRequest = new HashMap<Object, Object>();
setJsonField(jsonRequest, PARAM_TIME_TO_LIVE, message.getTimeToLive());
setJsonField(jsonRequest, PARAM_COLLAPSE_KEY, message.getCollapseKey());
setJsonField(jsonRequest, PARAM_DELAY_WHILE_IDLE,
message.isDelayWhileIdle());
jsonRequest.put(JSON_REGISTRATION_IDS, registrationIds);
Map<String, String> payload = message.getData();
if (!payload.isEmpty()) {
jsonRequest.put(JSON_PAYLOAD, payload);
}
String requestBody = JSONValue.toJSONString(jsonRequest);
logger.finest("JSON request: " + requestBody);
HttpURLConnection conn =
post(GCM_SEND_ENDPOINT, "application/json", requestBody);
int status = conn.getResponseCode();
String responseBody = getString(conn.getInputStream());
logger.finest("JSON response: " + responseBody);
if (status != 200) {
throw new InvalidRequestException(status, responseBody);
}
JSONParser parser = new JSONParser();
JSONObject jsonResponse;
try {
jsonResponse = (JSONObject) parser.parse(responseBody);
int success = getNumber(jsonResponse, JSON_SUCCESS).intValue();
int failure = getNumber(jsonResponse, JSON_FAILURE).intValue();
int canonicalIds = getNumber(jsonResponse, JSON_CANONICAL_IDS).intValue();
long multicastId = getNumber(jsonResponse, JSON_MULTICAST_ID).longValue();
MulticastResult.Builder builder = new MulticastResult.Builder(success,
failure, canonicalIds, multicastId);
@SuppressWarnings("unchecked")
List<Map<String, Object>> results =
(List<Map<String, Object>>) jsonResponse.get(JSON_RESULTS);
if (results != null) {
for (Map<String, Object> jsonResult : results) {
String messageId = (String) jsonResult.get(JSON_MESSAGE_ID);
String canonicalRegId =
(String) jsonResult.get(TOKEN_CANONICAL_REG_ID);
String error = (String) jsonResult.get(JSON_ERROR);
Result result = new Result.Builder()
.messageId(messageId)
.canonicalRegistrationId(canonicalRegId)
.errorCode(error)
.build();
builder.addResult(result);
}
}
MulticastResult multicastResult = builder.build();
return multicastResult;
} catch (ParseException e) {
throw new IOException("Error parsing JSON response: " + responseBody, e);
} catch (CustomParserException e) {
throw new IOException("Error parsing JSON response: " + responseBody, e);
}
}
/**
* Sets a JSON field, but only if the value is not {@literal null}.
*/
private void setJsonField(Map<Object, Object> json, String field,
Object value) {
if (value != null) {
json.put(field, value);
}
}
private Number getNumber(Map<?, ?> json, String field) {
Object value = json.get(field);
if (value == null) {
throw new CustomParserException("Missing field: " + field);
}
if (!(value instanceof Number)) {
throw new CustomParserException("Field " + field +
" does not contain a number: " + value);
}
return (Number) value;
}
class CustomParserException extends RuntimeException {
CustomParserException(String message) {
super(message);
}
}
private String[] split(String line) throws IOException {
String[] split = line.split("=", 2);
if (split.length != 2) {
throw new IOException("Received invalid response line from GCM: " + line);
}
return split;
}
/**
* Make an HTTP post to a given URL.
*
* @return HTTP response.
*/
protected HttpURLConnection post(String url, String body)
throws IOException {
return post(url, "application/x-www-form-urlencoded;charset=UTF-8", body);
}
protected HttpURLConnection post(String url, String contentType, String body)
throws IOException {
if (url == null || body == null) {
throw new IllegalArgumentException("arguments cannot be null");
}
if (!url.startsWith("https://")) {
logger.warning("URL does not use https: " + url);
}
logger.fine("Sending POST to " + url);
logger.finest("POST body: " + body);
byte[] bytes = body.getBytes();
HttpURLConnection conn = getConnection(url);
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setFixedLengthStreamingMode(bytes.length);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", contentType);
conn.setRequestProperty("Authorization", "key=" + key);
OutputStream out = conn.getOutputStream();
out.write(bytes);
out.close();
return conn;
}
/**
* Creates a map with just one key-value pair.
*/
protected static final Map<String, String> newKeyValues(String key,
String value) {
Map<String, String> keyValues = new HashMap<String, String>(1);
keyValues.put(nonNull(key), nonNull(value));
return keyValues;
}
/**
* Creates a {@link StringBuilder} to be used as the body of an HTTP POST.
*
* @param name initial parameter for the POST.
* @param value initial value for that parameter.
* @return StringBuilder to be used an HTTP POST body.
*/
protected static StringBuilder newBody(String name, String value) {
return new StringBuilder(nonNull(name)).append('=').append(nonNull(value));
}
/**
* Adds a new parameter to the HTTP POST body.
*
* @param body HTTP POST body
* @param name parameter's name
* @param value parameter's value
*/
protected static void addParameter(StringBuilder body, String name,
String value) {
nonNull(body).append('&')
.append(nonNull(name)).append('=').append(nonNull(value));
}
/**
* Gets an {@link HttpURLConnection} given an URL.
*/
protected HttpURLConnection getConnection(String url) throws IOException {
HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
return conn;
}
/**
* Convenience method to convert an InputStream to a String.
*
* <p>
* If the stream ends in a newline character, it will be stripped.
*/
protected static String getString(InputStream stream) throws IOException {
BufferedReader reader =
new BufferedReader(new InputStreamReader(nonNull(stream)));
StringBuilder content = new StringBuilder();
String newLine;
do {
newLine = reader.readLine();
if (newLine != null) {
content.append(newLine).append('\n');
}
} while (newLine != null);
if (content.length() > 0) {
// strip last newline
content.setLength(content.length() - 1);
}
return content.toString();
}
static <T> T nonNull(T argument) {
if (argument == null) {
throw new IllegalArgumentException("argument cannot be null");
}
return argument;
}
void sleep(long millis) {
try {
Thread.sleep(millis);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
/**
* Constants used on GCM service communication.
*/
public final class Constants {
/**
* Endpoint for sending messages.
*/
public static final String GCM_SEND_ENDPOINT =
"https://android.googleapis.com/gcm/send";
/**
* HTTP parameter for registration id.
*/
public static final String PARAM_REGISTRATION_ID = "registration_id";
/**
* HTTP parameter for collapse key.
*/
public static final String PARAM_COLLAPSE_KEY = "collapse_key";
/**
* HTTP parameter for delaying the message delivery if the device is idle.
*/
public static final String PARAM_DELAY_WHILE_IDLE = "delay_while_idle";
/**
* Prefix to HTTP parameter used to pass key-values in the message payload.
*/
public static final String PARAM_PAYLOAD_PREFIX = "data.";
/**
* Prefix to HTTP parameter used to set the message time-to-live.
*/
public static final String PARAM_TIME_TO_LIVE = "time_to_live";
/**
* Too many messages sent by the sender. Retry after a while.
*/
public static final String ERROR_QUOTA_EXCEEDED = "QuotaExceeded";
/**
* Too many messages sent by the sender to a specific device.
* Retry after a while.
*/
public static final String ERROR_DEVICE_QUOTA_EXCEEDED =
"DeviceQuotaExceeded";
/**
* Missing registration_id.
* Sender should always add the registration_id to the request.
*/
public static final String ERROR_MISSING_REGISTRATION = "MissingRegistration";
/**
* Bad registration_id. Sender should remove this registration_id.
*/
public static final String ERROR_INVALID_REGISTRATION = "InvalidRegistration";
/**
* The sender_id contained in the registration_id does not match the
* sender_id used to register with the GCM servers.
*/
public static final String ERROR_MISMATCH_SENDER_ID = "MismatchSenderId";
/**
* The user has uninstalled the application or turned off notifications.
* Sender should stop sending messages to this device and delete the
* registration_id. The client needs to re-register with the GCM servers to
* receive notifications again.
*/
public static final String ERROR_NOT_REGISTERED = "NotRegistered";
/**
* The payload of the message is too big, see the limitations.
* Reduce the size of the message.
*/
public static final String ERROR_MESSAGE_TOO_BIG = "MessageTooBig";
/**
* Collapse key is required. Include collapse key in the request.
*/
public static final String ERROR_MISSING_COLLAPSE_KEY = "MissingCollapseKey";
/**
* Used to indicate that a particular message could not be sent because
* the GCM servers were not available. Used only on JSON requests, as in
* plain text requests unavailability is indicated by a 503 response.
*/
public static final String ERROR_UNAVAILABLE = "Unavailable";
/**
* Token returned by GCM when a message was successfully sent.
*/
public static final String TOKEN_MESSAGE_ID = "id";
/**
* Token returned by GCM when the requested registration id has a canonical
* value.
*/
public static final String TOKEN_CANONICAL_REG_ID = "registration_id";
/**
* Token returned by GCM when there was an error sending a message.
*/
public static final String TOKEN_ERROR = "Error";
/**
* JSON-only field representing the registration ids.
*/
public static final String JSON_REGISTRATION_IDS = "registration_ids";
/**
* JSON-only field representing the payload data.
*/
public static final String JSON_PAYLOAD = "data";
/**
* JSON-only field representing the number of successful messages.
*/
public static final String JSON_SUCCESS = "success";
/**
* JSON-only field representing the number of failed messages.
*/
public static final String JSON_FAILURE = "failure";
/**
* JSON-only field representing the number of messages with a canonical
* registration id.
*/
public static final String JSON_CANONICAL_IDS = "canonical_ids";
/**
* JSON-only field representing the id of the multicast request.
*/
public static final String JSON_MULTICAST_ID = "multicast_id";
/**
* JSON-only field representing the result of each individual request.
*/
public static final String JSON_RESULTS = "results";
/**
* JSON-only field representing the error field of an individual request.
*/
public static final String JSON_ERROR = "error";
/**
* JSON-only field sent by GCM when a message was successfully sent.
*/
public static final String JSON_MESSAGE_ID = "message_id";
private Constants() {
throw new UnsupportedOperationException();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import java.io.Serializable;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* GCM message.
*
* <p>
* Instances of this class are immutable and should be created using a
* {@link Builder}. Examples:
*
* <strong>Simplest message:</strong>
* <pre><code>
* Message message = new Message.Builder().build();
* </pre></code>
*
* <strong>Message with optional attributes:</strong>
* <pre><code>
* Message message = new Message.Builder()
* .collapseKey(collapseKey)
* .timeToLive(3)
* .delayWhileIdle(true)
* .build();
* </pre></code>
*
* <strong>Message with optional attributes and payload data:</strong>
* <pre><code>
* Message message = new Message.Builder()
* .collapseKey(collapseKey)
* .timeToLive(3)
* .delayWhileIdle(true)
* .addData("key1", "value1")
* .addData("key2", "value2")
* .build();
* </pre></code>
*/
public final class Message implements Serializable {
private final String collapseKey;
private final Boolean delayWhileIdle;
private final Integer timeToLive;
private final Map<String, String> data;
public static final class Builder {
private final Map<String, String> data;
// optional parameters
private String collapseKey;
private Boolean delayWhileIdle;
private Integer timeToLive;
public Builder() {
this.data = new LinkedHashMap<String, String>();
}
/**
* Sets the collapseKey property.
*/
public Builder collapseKey(String value) {
collapseKey = value;
return this;
}
/**
* Sets the delayWhileIdle property (default value is {@literal false}).
*/
public Builder delayWhileIdle(boolean value) {
delayWhileIdle = value;
return this;
}
/**
* Sets the time to live, in seconds.
*/
public Builder timeToLive(int value) {
timeToLive = value;
return this;
}
/**
* Adds a key/value pair to the payload data.
*/
public Builder addData(String key, String value) {
data.put(key, value);
return this;
}
public Message build() {
return new Message(this);
}
}
private Message(Builder builder) {
collapseKey = builder.collapseKey;
delayWhileIdle = builder.delayWhileIdle;
data = Collections.unmodifiableMap(builder.data);
timeToLive = builder.timeToLive;
}
/**
* Gets the collapse key.
*/
public String getCollapseKey() {
return collapseKey;
}
/**
* Gets the delayWhileIdle flag.
*/
public Boolean isDelayWhileIdle() {
return delayWhileIdle;
}
/**
* Gets the time to live (in seconds).
*/
public Integer getTimeToLive() {
return timeToLive;
}
/**
* Gets the payload data, which is immutable.
*/
public Map<String, String> getData() {
return data;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder("Message(");
if (collapseKey != null) {
builder.append("collapseKey=").append(collapseKey).append(", ");
}
if (timeToLive != null) {
builder.append("timeToLive=").append(timeToLive).append(", ");
}
if (delayWhileIdle != null) {
builder.append("delayWhileIdle=").append(delayWhileIdle).append(", ");
}
if (!data.isEmpty()) {
builder.append("data: {");
for (Map.Entry<String, String> entry : data.entrySet()) {
builder.append(entry.getKey()).append("=").append(entry.getValue())
.append(",");
}
builder.delete(builder.length() - 1, builder.length());
builder.append("}");
}
if (builder.charAt(builder.length() - 1) == ' ') {
builder.delete(builder.length() - 2, builder.length());
}
builder.append(")");
return builder.toString();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Result of a GCM multicast message request .
*/
public final class MulticastResult implements Serializable {
private final int success;
private final int failure;
private final int canonicalIds;
private final long multicastId;
private final List<Result> results;
private final List<Long> retryMulticastIds;
static final class Builder {
private final List<Result> results = new ArrayList<Result>();
// required parameters
private final int success;
private final int failure;
private final int canonicalIds;
private final long multicastId;
// optional parameters
private List<Long> retryMulticastIds;
public Builder(int success, int failure, int canonicalIds,
long multicastId) {
this.success = success;
this.failure = failure;
this.canonicalIds = canonicalIds;
this.multicastId = multicastId;
}
public Builder addResult(Result result) {
results.add(result);
return this;
}
public Builder retryMulticastIds(List<Long> retryMulticastIds) {
this.retryMulticastIds = retryMulticastIds;
return this;
}
public MulticastResult build() {
return new MulticastResult(this);
}
}
private MulticastResult(Builder builder) {
success = builder.success;
failure = builder.failure;
canonicalIds = builder.canonicalIds;
multicastId = builder.multicastId;
results = Collections.unmodifiableList(builder.results);
List<Long> tmpList = builder.retryMulticastIds;
if (tmpList == null) {
tmpList = Collections.emptyList();
}
retryMulticastIds = Collections.unmodifiableList(tmpList);
}
/**
* Gets the multicast id.
*/
public long getMulticastId() {
return multicastId;
}
/**
* Gets the number of successful messages.
*/
public int getSuccess() {
return success;
}
/**
* Gets the total number of messages sent, regardless of the status.
*/
public int getTotal() {
return success + failure;
}
/**
* Gets the number of failed messages.
*/
public int getFailure() {
return failure;
}
/**
* Gets the number of successful messages that also returned a canonical
* registration id.
*/
public int getCanonicalIds() {
return canonicalIds;
}
/**
* Gets the results of each individual message, which is immutable.
*/
public List<Result> getResults() {
return results;
}
/**
* Gets additional ids if more than one multicast message was sent.
*/
public List<Long> getRetryMulticastIds() {
return retryMulticastIds;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder("MulticastResult(")
.append("multicast_id=").append(multicastId).append(",")
.append("total=").append(getTotal()).append(",")
.append("success=").append(success).append(",")
.append("failure=").append(failure).append(",")
.append("canonical_ids=").append(canonicalIds).append(",");
if (!results.isEmpty()) {
builder.append("results: " + results);
}
return builder.toString();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import com.google.android.gcm.server.Constants;
import com.google.android.gcm.server.Message;
import com.google.android.gcm.server.MulticastResult;
import com.google.android.gcm.server.Result;
import com.google.android.gcm.server.Sender;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that adds a new message to all registered devices.
* <p>
* This servlet is used just by the browser (i.e., not device).
*/
@SuppressWarnings("serial")
public class SendAllMessagesServlet extends BaseServlet {
private Sender sender;
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
sender = newSender(config);
}
/**
* Creates the {@link Sender} based on the servlet settings.
*/
protected Sender newSender(ServletConfig config) {
String key = (String) config.getServletContext()
.getAttribute(ApiKeyInitializer.ATTRIBUTE_ACCESS_KEY);
return new Sender(key);
}
/**
* Processes the request to add a new message.
*/
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
List<String> devices = Datastore.getDevices();
StringBuilder status = new StringBuilder();
if (devices.isEmpty()) {
status.append("Message ignored as there is no device registered!");
} else {
List<Result> results;
// NOTE: check below is for demonstration purposes; a real application
// could always send a multicast, even for just one recipient
if (devices.size() == 1) {
// send a single message using plain post
String registrationId = devices.get(0);
Message message = new Message.Builder().build();
Result result = sender.send(message, registrationId, 5);
results = Arrays.asList(result);
} else {
// send a multicast message using JSON
Message message = new Message.Builder().build();
MulticastResult result = sender.send(message, devices, 5);
results = result.getResults();
}
// analyze the results
for (int i = 0; i < devices.size(); i++) {
Result result = results.get(i);
if (result.getMessageId() != null) {
status.append("Succesfully sent message to device #").append(i);
String canonicalRegId = result.getCanonicalRegistrationId();
if (canonicalRegId != null) {
// same device has more than on registration id: update it
logger.finest("canonicalRegId " + canonicalRegId);
devices.set(i, canonicalRegId);
status.append(". Also updated registration id!");
}
} else {
String error = result.getErrorCodeName();
if (error.equals(Constants.ERROR_NOT_REGISTERED)) {
// application has been removed from device - unregister it
status.append("Unregistered device #").append(i);
String regId = devices.get(i);
Datastore.unregister(regId);
} else {
status.append("Error sending message to device #").append(i)
.append(": ").append(error);
}
}
status.append("<br/>");
}
}
req.setAttribute(HomeServlet.ATTRIBUTE_STATUS, status.toString());
getServletContext().getRequestDispatcher("/home").forward(req, resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that unregisters a device, whose registration id is identified by
* {@link #PARAMETER_REG_ID}.
* <p>
* The client app should call this servlet everytime it receives a
* {@code com.google.android.c2dm.intent.REGISTRATION} with an
* {@code unregistered} extra.
*/
@SuppressWarnings("serial")
public class UnregisterServlet extends BaseServlet {
private static final String PARAMETER_REG_ID = "regId";
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException {
String regId = getParameter(req, PARAMETER_REG_ID);
Datastore.unregister(regId);
setSuccess(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that registers a device, whose registration id is identified by
* {@link #PARAMETER_REG_ID}.
*
* <p>
* The client app should call this servlet everytime it receives a
* {@code com.google.android.c2dm.intent.REGISTRATION C2DM} intent without an
* error or {@code unregistered} extra.
*/
@SuppressWarnings("serial")
public class RegisterServlet extends BaseServlet {
private static final String PARAMETER_REG_ID = "regId";
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException {
String regId = getParameter(req, PARAMETER_REG_ID);
Datastore.register(regId);
setSuccess(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
/**
* Simple implementation of a data store using standard Java collections.
* <p>
* This class is neither persistent (it will lost the data when the app is
* restarted) nor thread safe.
*/
public final class Datastore {
private static final List<String> regIds = new ArrayList<String>();
private static final Logger logger =
Logger.getLogger(Datastore.class.getName());
private Datastore() {
throw new UnsupportedOperationException();
}
/**
* Registers a device.
*
* @param regId device's registration id.
*/
public static void register(String regId) {
logger.info("Registering " + regId);
regIds.add(regId);
}
/**
* Unregisters a device.
*
* @param regId device's registration id.
*/
public static void unregister(String regId) {
logger.info("Unregistering " + regId);
regIds.remove(regId);
}
/**
* Gets all registered devices.
*/
public static List<String> getDevices() {
return regIds;
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.IOException;
import java.util.Enumeration;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Skeleton class for all servlets in this package.
*/
@SuppressWarnings("serial")
abstract class BaseServlet extends HttpServlet {
// change to true to allow GET calls
static final boolean DEBUG = true;
protected final Logger logger = Logger.getLogger(getClass().getName());
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
if (DEBUG) {
doPost(req, resp);
} else {
super.doGet(req, resp);
}
}
protected String getParameter(HttpServletRequest req, String parameter)
throws ServletException {
String value = req.getParameter(parameter);
if (value == null || value.trim().isEmpty()) {
if (DEBUG) {
StringBuilder parameters = new StringBuilder();
@SuppressWarnings("unchecked")
Enumeration<String> names = req.getParameterNames();
while (names.hasMoreElements()) {
String name = names.nextElement();
String param = req.getParameter(name);
parameters.append(name).append("=").append(param).append("\n");
}
logger.fine("parameters: " + parameters);
}
throw new ServletException("Parameter " + parameter + " not found");
}
return value.trim();
}
protected String getParameter(HttpServletRequest req, String parameter,
String defaultValue) {
String value = req.getParameter(parameter);
if (value == null || value.trim().isEmpty()) {
value = defaultValue;
}
return value.trim();
}
protected void setSuccess(HttpServletResponse resp) {
setSuccess(resp, 0);
}
protected void setSuccess(HttpServletResponse resp, int size) {
resp.setStatus(HttpServletResponse.SC_OK);
resp.setContentType("text/plain");
resp.setContentLength(size);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
/**
* Context initializer that loads the API key from a
* {@value #PATH} file located in the classpath (typically under
* {@code WEB-INF/classes}).
*/
public class ApiKeyInitializer implements ServletContextListener {
static final String ATTRIBUTE_ACCESS_KEY = "apiKey";
private static final String PATH = "/api.key";
private final Logger logger = Logger.getLogger(getClass().getName());
@Override
public void contextInitialized(ServletContextEvent event) {
logger.info("Reading " + PATH + " from resources (probably from " +
"WEB-INF/classes");
String key = getKey();
event.getServletContext().setAttribute(ATTRIBUTE_ACCESS_KEY, key);
}
/**
* Gets the access key.
*/
protected String getKey() {
InputStream stream = Thread.currentThread().getContextClassLoader()
.getResourceAsStream(PATH);
if (stream == null) {
throw new IllegalStateException("Could not find file " + PATH +
" on web resources)");
}
BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
try {
String key = reader.readLine();
return key;
} catch (IOException e) {
throw new RuntimeException("Could not read file " + PATH, e);
} finally {
try {
reader.close();
} catch (IOException e) {
logger.log(Level.WARNING, "Exception closing " + PATH, e);
}
}
}
@Override
public void contextDestroyed(ServletContextEvent event) {
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that adds display number of devices and button to send a message.
* <p>
* This servlet is used just by the browser (i.e., not device) and contains the
* main page of the demo app.
*/
@SuppressWarnings("serial")
public class HomeServlet extends BaseServlet {
static final String ATTRIBUTE_STATUS = "status";
/**
* Displays the existing messages and offer the option to send a new one.
*/
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
resp.setContentType("text/html");
PrintWriter out = resp.getWriter();
out.print("<html><body>");
out.print("<head>");
out.print(" <title>GCM Demo</title>");
out.print(" <link rel='icon' href='favicon.png'/>");
out.print("</head>");
String status = (String) req.getAttribute(ATTRIBUTE_STATUS);
if (status != null) {
out.print(status);
}
List<String> devices = Datastore.getDevices();
if (devices.isEmpty()) {
out.print("<h2>No devices registered!</h2>");
} else {
out.print("<h2>" + devices.size() + " device(s) registered!</h2>");
out.print("<form name='form' method='POST' action='sendAll'>");
out.print("<input type='submit' value='Send Message' />");
out.print("</form>");
}
out.print("</body></html>");
resp.setStatus(HttpServletResponse.SC_OK);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
doGet(req, resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import static com.google.android.gcm.demo.app.CommonUtilities.DISPLAY_MESSAGE_ACTION;
import static com.google.android.gcm.demo.app.CommonUtilities.EXTRA_MESSAGE;
import static com.google.android.gcm.demo.app.CommonUtilities.SENDER_ID;
import static com.google.android.gcm.demo.app.CommonUtilities.SERVER_URL;
import com.google.android.gcm.GCMRegistrar;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.TextView;
/**
* Main UI for the demo app.
*/
public class DemoActivity extends Activity {
TextView mDisplay;
AsyncTask<Void, Void, Void> mRegisterTask;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
checkNotNull(SERVER_URL, "SERVER_URL");
checkNotNull(SENDER_ID, "SENDER_ID");
// Make sure the device has the proper dependencies.
GCMRegistrar.checkDevice(this);
// Make sure the manifest was properly set - comment out this line
// while developing the app, then uncomment it when it's ready.
GCMRegistrar.checkManifest(this);
setContentView(R.layout.main);
mDisplay = (TextView) findViewById(R.id.display);
registerReceiver(mHandleMessageReceiver,
new IntentFilter(DISPLAY_MESSAGE_ACTION));
final String regId = GCMRegistrar.getRegistrationId(this);
if (regId.equals("")) {
// Automatically registers application on startup.
GCMRegistrar.register(this, SENDER_ID);
} else {
// Device is already registered on GCM, needs to check if it is
// registered on our server as well.
if (GCMRegistrar.isRegisteredOnServer(this)) {
// Skips registration.
mDisplay.append(getString(R.string.already_registered) + "\n");
} else {
// Try to register again, but not in the UI thread.
// It's also necessary to cancel the thread onDestroy(),
// hence the use of AsyncTask instead of a raw thread.
final Context context = this;
mRegisterTask = new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
boolean registered =
ServerUtilities.register(context, regId);
// At this point all attempts to register with the app
// server failed, so we need to unregister the device
// from GCM - the app will try to register again when
// it is restarted. Note that GCM will send an
// unregistered callback upon completion, but
// GCMIntentService.onUnregistered() will ignore it.
if (!registered) {
GCMRegistrar.unregister(context);
}
return null;
}
@Override
protected void onPostExecute(Void result) {
mRegisterTask = null;
}
};
mRegisterTask.execute(null, null, null);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.options_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
/*
* Typically, an application registers automatically, so options
* below are disabled. Uncomment them if you want to manually
* register or unregister the device (you will also need to
* uncomment the equivalent options on options_menu.xml).
*/
/*
case R.id.options_register:
GCMRegistrar.register(this, SENDER_ID);
return true;
case R.id.options_unregister:
GCMRegistrar.unregister(this);
return true;
*/
case R.id.options_clear:
mDisplay.setText(null);
return true;
case R.id.options_exit:
finish();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
protected void onDestroy() {
if (mRegisterTask != null) {
mRegisterTask.cancel(true);
}
unregisterReceiver(mHandleMessageReceiver);
GCMRegistrar.onDestroy(this);
super.onDestroy();
}
private void checkNotNull(Object reference, String name) {
if (reference == null) {
throw new NullPointerException(
getString(R.string.error_config, name));
}
}
private final BroadcastReceiver mHandleMessageReceiver =
new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String newMessage = intent.getExtras().getString(EXTRA_MESSAGE);
mDisplay.append(newMessage + "\n");
}
};
} | Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import static com.google.android.gcm.demo.app.CommonUtilities.SERVER_URL;
import static com.google.android.gcm.demo.app.CommonUtilities.TAG;
import static com.google.android.gcm.demo.app.CommonUtilities.displayMessage;
import com.google.android.gcm.GCMRegistrar;
import android.content.Context;
import android.util.Log;
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Random;
/**
* Helper class used to communicate with the demo server.
*/
public final class ServerUtilities {
private static final int MAX_ATTEMPTS = 5;
private static final int BACKOFF_MILLI_SECONDS = 2000;
private static final Random random = new Random();
/**
* Register this account/device pair within the server.
*
* @return whether the registration succeeded or not.
*/
static boolean register(final Context context, final String regId) {
Log.i(TAG, "registering device (regId = " + regId + ")");
String serverUrl = SERVER_URL + "/register";
Map<String, String> params = new HashMap<String, String>();
params.put("regId", regId);
long backoff = BACKOFF_MILLI_SECONDS + random.nextInt(1000);
// Once GCM returns a registration id, we need to register it in the
// demo server. As the server might be down, we will retry it a couple
// times.
for (int i = 1; i <= MAX_ATTEMPTS; i++) {
Log.d(TAG, "Attempt #" + i + " to register");
try {
displayMessage(context, context.getString(
R.string.server_registering, i, MAX_ATTEMPTS));
post(serverUrl, params);
GCMRegistrar.setRegisteredOnServer(context, true);
String message = context.getString(R.string.server_registered);
CommonUtilities.displayMessage(context, message);
return true;
} catch (IOException e) {
// Here we are simplifying and retrying on any error; in a real
// application, it should retry only on unrecoverable errors
// (like HTTP error code 503).
Log.e(TAG, "Failed to register on attempt " + i, e);
if (i == MAX_ATTEMPTS) {
break;
}
try {
Log.d(TAG, "Sleeping for " + backoff + " ms before retry");
Thread.sleep(backoff);
} catch (InterruptedException e1) {
// Activity finished before we complete - exit.
Log.d(TAG, "Thread interrupted: abort remaining retries!");
Thread.currentThread().interrupt();
return false;
}
// increase backoff exponentially
backoff *= 2;
}
}
String message = context.getString(R.string.server_register_error,
MAX_ATTEMPTS);
CommonUtilities.displayMessage(context, message);
return false;
}
/**
* Unregister this account/device pair within the server.
*/
static void unregister(final Context context, final String regId) {
Log.i(TAG, "unregistering device (regId = " + regId + ")");
String serverUrl = SERVER_URL + "/unregister";
Map<String, String> params = new HashMap<String, String>();
params.put("regId", regId);
try {
post(serverUrl, params);
GCMRegistrar.setRegisteredOnServer(context, false);
String message = context.getString(R.string.server_unregistered);
CommonUtilities.displayMessage(context, message);
} catch (IOException e) {
// At this point the device is unregistered from GCM, but still
// registered in the server.
// We could try to unregister again, but it is not necessary:
// if the server tries to send a message to the device, it will get
// a "NotRegistered" error message and should unregister the device.
String message = context.getString(R.string.server_unregister_error,
e.getMessage());
CommonUtilities.displayMessage(context, message);
}
}
/**
* Issue a POST request to the server.
*
* @param endpoint POST address.
* @param params request parameters.
*
* @throws IOException propagated from POST.
*/
private static void post(String endpoint, Map<String, String> params)
throws IOException {
URL url;
try {
url = new URL(endpoint);
} catch (MalformedURLException e) {
throw new IllegalArgumentException("invalid url: " + endpoint);
}
StringBuilder bodyBuilder = new StringBuilder();
Iterator<Entry<String, String>> iterator = params.entrySet().iterator();
// constructs the POST body using the parameters
while (iterator.hasNext()) {
Entry<String, String> param = iterator.next();
bodyBuilder.append(param.getKey()).append('=')
.append(param.getValue());
if (iterator.hasNext()) {
bodyBuilder.append('&');
}
}
String body = bodyBuilder.toString();
Log.v(TAG, "Posting '" + body + "' to " + url);
byte[] bytes = body.getBytes();
HttpURLConnection conn = null;
try {
conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setFixedLengthStreamingMode(bytes.length);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
// post the request
OutputStream out = conn.getOutputStream();
out.write(bytes);
out.close();
// handle the response
int status = conn.getResponseCode();
if (status != 200) {
throw new IOException("Post failed with error code " + status);
}
} finally {
if (conn != null) {
conn.disconnect();
}
}
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import android.content.Context;
import android.content.Intent;
/**
* Helper class providing methods and constants common to other classes in the
* app.
*/
public final class CommonUtilities {
/**
* Base URL of the Demo Server (such as http://my_host:8080/gcm-demo)
*/
static final String SERVER_URL = null;
/**
* Google API project id registered to use GCM.
*/
static final String SENDER_ID = null;
/**
* Tag used on log messages.
*/
static final String TAG = "GCMDemo";
/**
* Intent used to display a message in the screen.
*/
static final String DISPLAY_MESSAGE_ACTION =
"com.google.android.gcm.demo.app.DISPLAY_MESSAGE";
/**
* Intent's extra that contains the message to be displayed.
*/
static final String EXTRA_MESSAGE = "message";
/**
* Notifies UI to display a message.
* <p>
* This method is defined in the common helper because it's used both by
* the UI and the background service.
*
* @param context application's context.
* @param message message to be displayed.
*/
static void displayMessage(Context context, String message) {
Intent intent = new Intent(DISPLAY_MESSAGE_ACTION);
intent.putExtra(EXTRA_MESSAGE, message);
context.sendBroadcast(intent);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import static com.google.android.gcm.demo.app.CommonUtilities.SENDER_ID;
import static com.google.android.gcm.demo.app.CommonUtilities.displayMessage;
import android.app.IntentService;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import com.google.android.gcm.GCMBaseIntentService;
import com.google.android.gcm.GCMRegistrar;
/**
* {@link IntentService} responsible for handling GCM messages.
*/
public class GCMIntentService extends GCMBaseIntentService {
@SuppressWarnings("hiding")
private static final String TAG = "GCMIntentService";
public GCMIntentService() {
super(SENDER_ID);
}
@Override
protected void onRegistered(Context context, String registrationId) {
Log.i(TAG, "Device registered: regId = " + registrationId);
displayMessage(context, getString(R.string.gcm_registered));
ServerUtilities.register(context, registrationId);
}
@Override
protected void onUnregistered(Context context, String registrationId) {
Log.i(TAG, "Device unregistered");
displayMessage(context, getString(R.string.gcm_unregistered));
if (GCMRegistrar.isRegisteredOnServer(context)) {
ServerUtilities.unregister(context, registrationId);
} else {
// This callback results from the call to unregister made on
// ServerUtilities when the registration to the server failed.
Log.i(TAG, "Ignoring unregister callback");
}
}
@Override
protected void onMessage(Context context, Intent intent) {
Log.i(TAG, "Received message");
String message = getString(R.string.gcm_message);
displayMessage(context, message);
// notifies user
generateNotification(context, message);
}
@Override
protected void onDeletedMessages(Context context, int total) {
Log.i(TAG, "Received deleted messages notification");
String message = getString(R.string.gcm_deleted, total);
displayMessage(context, message);
// notifies user
generateNotification(context, message);
}
@Override
public void onError(Context context, String errorId) {
Log.i(TAG, "Received error: " + errorId);
displayMessage(context, getString(R.string.gcm_error, errorId));
}
@Override
protected boolean onRecoverableError(Context context, String errorId) {
// log message
Log.i(TAG, "Received recoverable error: " + errorId);
displayMessage(context, getString(R.string.gcm_recoverable_error,
errorId));
return super.onRecoverableError(context, errorId);
}
/**
* Issues a notification to inform the user that server has sent a message.
*/
private static void generateNotification(Context context, String message) {
int icon = R.drawable.ic_stat_gcm;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
Intent notificationIntent = new Intent(context, DemoActivity.class);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =
PendingIntent.getActivity(context, 0, notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(0, notification);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import static com.google.appengine.api.taskqueue.TaskOptions.Builder.withUrl;
import com.google.appengine.api.taskqueue.Queue;
import com.google.appengine.api.taskqueue.QueueFactory;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that adds a new message to all registered devices.
* <p>
* This servlet is used just by the browser (i.e., not device).
*/
@SuppressWarnings("serial")
public class SendAllMessagesServlet extends BaseServlet {
/**
* Processes the request to add a new message.
*/
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
List<String> devices = Datastore.getDevices();
String status;
if (devices.isEmpty()) {
status = "Message ignored as there is no device registered!";
} else {
Queue queue = QueueFactory.getQueue("gcm");
// NOTE: check below is for demonstration purposes; a real application
// could always send a multicast, even for just one recipient
if (devices.size() == 1) {
// send a single message using plain post
String device = devices.get(0);
queue.add(withUrl("/sendMessage").param(
SendMessageServlet.PARAMETER_DEVICE, device));
status = "Single message queued for registration id " + device;
} else {
// send a multicast message using JSON
String key = Datastore.createMulticast(devices);
queue.add(withUrl("/sendMessage").param(
SendMessageServlet.PARAMETER_MULTICAST, key));
status = "Multicast message queued for " + devices.size() + " devices";
}
}
req.setAttribute(HomeServlet.ATTRIBUTE_STATUS, status.toString());
getServletContext().getRequestDispatcher("/home").forward(req, resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import com.google.android.gcm.server.Constants;
import com.google.android.gcm.server.Message;
import com.google.android.gcm.server.MulticastResult;
import com.google.android.gcm.server.Result;
import com.google.android.gcm.server.Sender;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that sends a message to a device.
* <p>
* This servlet is invoked by AppEngine's Push Queue mechanism.
*/
@SuppressWarnings("serial")
public class SendMessageServlet extends BaseServlet {
private static final String HEADER_QUEUE_COUNT = "X-AppEngine-TaskRetryCount";
private static final String HEADER_QUEUE_NAME = "X-AppEngine-QueueName";
private static final int MAX_RETRY = 3;
static final String PARAMETER_DEVICE = "device";
static final String PARAMETER_MULTICAST = "multicastKey";
private Sender sender;
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
sender = newSender(config);
}
/**
* Creates the {@link Sender} based on the servlet settings.
*/
protected Sender newSender(ServletConfig config) {
String key = (String) config.getServletContext()
.getAttribute(ApiKeyInitializer.ATTRIBUTE_ACCESS_KEY);
return new Sender(key);
}
/**
* Indicates to App Engine that this task should be retried.
*/
private void retryTask(HttpServletResponse resp) {
resp.setStatus(500);
}
/**
* Indicates to App Engine that this task is done.
*/
private void taskDone(HttpServletResponse resp) {
resp.setStatus(200);
}
/**
* Processes the request to add a new message.
*/
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
if (req.getHeader(HEADER_QUEUE_NAME) == null) {
throw new IOException("Missing header " + HEADER_QUEUE_NAME);
}
String retryCountHeader = req.getHeader(HEADER_QUEUE_COUNT);
logger.fine("retry count: " + retryCountHeader);
if (retryCountHeader != null) {
int retryCount = Integer.parseInt(retryCountHeader);
if (retryCount > MAX_RETRY) {
logger.severe("Too many retries, dropping task");
taskDone(resp);
return;
}
}
String regId = req.getParameter(PARAMETER_DEVICE);
if (regId != null) {
sendSingleMessage(regId, resp);
return;
}
String multicastKey = req.getParameter(PARAMETER_MULTICAST);
if (multicastKey != null) {
sendMulticastMessage(multicastKey, resp);
return;
}
logger.severe("Invalid request!");
taskDone(resp);
return;
}
private void sendSingleMessage(String regId, HttpServletResponse resp) {
logger.info("Sending message to device " + regId);
Message message = new Message.Builder().build();
Result result;
try {
result = sender.sendNoRetry(message, regId);
} catch (IOException e) {
logger.log(Level.SEVERE, "Exception posting " + message, e);
taskDone(resp);
return;
}
if (result == null) {
retryTask(resp);
return;
}
if (result.getMessageId() != null) {
logger.info("Succesfully sent message to device " + regId);
String canonicalRegId = result.getCanonicalRegistrationId();
if (canonicalRegId != null) {
// same device has more than on registration id: update it
logger.finest("canonicalRegId " + canonicalRegId);
Datastore.updateRegistration(regId, canonicalRegId);
}
} else {
String error = result.getErrorCodeName();
if (error.equals(Constants.ERROR_NOT_REGISTERED)) {
// application has been removed from device - unregister it
Datastore.unregister(regId);
} else {
logger.severe("Error sending message to device " + regId
+ ": " + error);
}
}
}
private void sendMulticastMessage(String encodedKey,
HttpServletResponse resp) {
// Recover registration ids from datastore
List<String> regIds = Datastore.getMulticast(encodedKey);
Message message = new Message.Builder().build();
MulticastResult multicastResult;
try {
multicastResult = sender.sendNoRetry(message, regIds);
} catch (IOException e) {
logger.log(Level.SEVERE, "Exception posting " + message, e);
multicastDone(resp, encodedKey);
return;
}
boolean allDone = true;
// check if any registration id must be updated
if (multicastResult.getCanonicalIds() != 0) {
List<Result> results = multicastResult.getResults();
for (int i = 0; i < results.size(); i++) {
String canonicalRegId = results.get(i).getCanonicalRegistrationId();
if (canonicalRegId != null) {
String regId = regIds.get(i);
Datastore.updateRegistration(regId, canonicalRegId);
}
}
}
if (multicastResult.getFailure() != 0) {
// there were failures, check if any could be retried
List<Result> results = multicastResult.getResults();
List<String> retriableRegIds = new ArrayList<String>();
for (int i = 0; i < results.size(); i++) {
String error = results.get(i).getErrorCodeName();
if (error != null) {
String regId = regIds.get(i);
logger.warning("Got error (" + error + ") for regId " + regId);
if (error.equals(Constants.ERROR_NOT_REGISTERED)) {
// application has been removed from device - unregister it
Datastore.unregister(regId);
}
if (error.equals(Constants.ERROR_UNAVAILABLE)) {
retriableRegIds.add(regId);
}
}
}
if (!retriableRegIds.isEmpty()) {
// update task
Datastore.updateMulticast(encodedKey, retriableRegIds);
allDone = false;
retryTask(resp);
}
}
if (allDone) {
multicastDone(resp, encodedKey);
} else {
retryTask(resp);
}
}
private void multicastDone(HttpServletResponse resp, String encodedKey) {
Datastore.deleteMulticast(encodedKey);
taskDone(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that unregisters a device, whose registration id is identified by
* {@link #PARAMETER_REG_ID}.
* <p>
* The client app should call this servlet everytime it receives a
* {@code com.google.android.c2dm.intent.REGISTRATION} with an
* {@code unregistered} extra.
*/
@SuppressWarnings("serial")
public class UnregisterServlet extends BaseServlet {
private static final String PARAMETER_REG_ID = "regId";
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException {
String regId = getParameter(req, PARAMETER_REG_ID);
Datastore.unregister(regId);
setSuccess(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that registers a device, whose registration id is identified by
* {@link #PARAMETER_REG_ID}.
*
* <p>
* The client app should call this servlet everytime it receives a
* {@code com.google.android.c2dm.intent.REGISTRATION C2DM} intent without an
* error or {@code unregistered} extra.
*/
@SuppressWarnings("serial")
public class RegisterServlet extends BaseServlet {
private static final String PARAMETER_REG_ID = "regId";
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException {
String regId = getParameter(req, PARAMETER_REG_ID);
Datastore.register(regId);
setSuccess(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import com.google.appengine.api.datastore.DatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.EntityNotFoundException;
import com.google.appengine.api.datastore.Key;
import com.google.appengine.api.datastore.KeyFactory;
import com.google.appengine.api.datastore.PreparedQuery;
import com.google.appengine.api.datastore.Query;
import com.google.appengine.api.datastore.Query.FilterOperator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.logging.Logger;
/**
* Simple implementation of a data store using standard Java collections.
* <p>
* This class is neither persistent (it will lost the data when the app is
* restarted) nor thread safe.
*/
public final class Datastore {
private static final String DEVICE_TYPE = "Device";
private static final String DEVICE_REG_ID_PROPERTY = "regId";
private static final String MULTICAST_TYPE = "Multicast";
private static final String MULTICAST_REG_IDS_PROPERTY = "regIds";
private static final Logger logger =
Logger.getLogger(Datastore.class.getName());
private static final DatastoreService datastore =
DatastoreServiceFactory.getDatastoreService();
private Datastore() {
throw new UnsupportedOperationException();
}
/**
* Registers a device.
*
* @param regId device's registration id.
*/
public static void register(String regId) {
logger.info("Registering " + regId);
Entity entity = new Entity(DEVICE_TYPE);
entity.setProperty(DEVICE_REG_ID_PROPERTY, regId);
datastore.put(entity);
}
/**
* Unregisters a device.
*
* @param regId device's registration id.
*/
public static void unregister(String regId) {
logger.info("Unregistering " + regId);
Entity entity = findDeviceByRegId(regId);
Key key = entity.getKey();
datastore.delete(key);
}
/**
* Updates the registration id of a device.
*/
public static void updateRegistration(String oldId, String newId) {
logger.info("Updating " + oldId + " to " + newId);
Entity entity = findDeviceByRegId(oldId);
if (entity == null) {
logger.warning("No device for registration id " + oldId);
return;
}
entity.setProperty(DEVICE_REG_ID_PROPERTY, newId);
datastore.put(entity);
}
/**
* Gets all registered devices.
*/
public static List<String> getDevices() {
Query query = new Query(DEVICE_TYPE);
Iterable<Entity> entities = datastore.prepare(query).asIterable();
List<String> devices = new ArrayList<String>();
for (Entity entity : entities) {
String device = (String) entity.getProperty(DEVICE_REG_ID_PROPERTY);
devices.add(device);
}
return devices;
}
private static Entity findDeviceByRegId(String regId) {
Query query = new Query(DEVICE_TYPE)
.addFilter(DEVICE_REG_ID_PROPERTY, FilterOperator.EQUAL, regId);
PreparedQuery preparedQuery = datastore.prepare(query);
Entity entity = preparedQuery.asSingleEntity();
return entity;
}
/**
* Creates a persistent record with the devices to be notified using a
* multicast message.
*
* @param devices registration ids of the devices.
* @return encoded key for the persistent record.
*/
public static String createMulticast(List<String> devices) {
logger.info("Storing multicast for " + devices.size() + " devices");
Entity entity = new Entity(MULTICAST_TYPE);
entity.setProperty(MULTICAST_REG_IDS_PROPERTY, devices);
datastore.put(entity);
Key key = entity.getKey();
String encodedKey = KeyFactory.keyToString(key);
logger.fine("multicast key: " + encodedKey);
return encodedKey;
}
/**
* Gets a persistent record with the devices to be notified using a
* multicast message.
*
* @param encodedKey encoded key for the persistent record.
*/
public static List<String> getMulticast(String encodedKey) {
Key key = KeyFactory.stringToKey(encodedKey);
Entity entity;
try {
entity = datastore.get(key);
@SuppressWarnings("unchecked")
List<String> devices =
(List<String>) entity.getProperty(MULTICAST_REG_IDS_PROPERTY);
return devices;
} catch (EntityNotFoundException e) {
logger.severe("No entity for key " + key);
return Collections.emptyList();
}
}
/**
* Updates a persistent record with the devices to be notified using a
* multicast message.
*
* @param encodedKey encoded key for the persistent record.
* @param devices new list of registration ids of the devices.
*/
public static void updateMulticast(String encodedKey, List<String> devices) {
Key key = KeyFactory.stringToKey(encodedKey);
Entity entity;
try {
entity = datastore.get(key);
} catch (EntityNotFoundException e) {
logger.severe("No entity for key " + key);
return;
}
entity.setProperty(MULTICAST_REG_IDS_PROPERTY, devices);
datastore.put(entity);
}
/**
* Deletes a persistent record with the devices to be notified using a
* multicast message.
*
* @param encodedKey encoded key for the persistent record.
*/
public static void deleteMulticast(String encodedKey) {
Key key = KeyFactory.stringToKey(encodedKey);
datastore.delete(key);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.IOException;
import java.util.Enumeration;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Skeleton class for all servlets in this package.
*/
@SuppressWarnings("serial")
abstract class BaseServlet extends HttpServlet {
// change to true to allow GET calls
static final boolean DEBUG = true;
protected final Logger logger = Logger.getLogger(getClass().getName());
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
if (DEBUG) {
doPost(req, resp);
} else {
super.doGet(req, resp);
}
}
protected String getParameter(HttpServletRequest req, String parameter)
throws ServletException {
String value = req.getParameter(parameter);
if (value == null || value.trim().isEmpty()) {
if (DEBUG) {
StringBuilder parameters = new StringBuilder();
@SuppressWarnings("unchecked")
Enumeration<String> names = req.getParameterNames();
while (names.hasMoreElements()) {
String name = names.nextElement();
String param = req.getParameter(name);
parameters.append(name).append("=").append(param).append("\n");
}
logger.fine("parameters: " + parameters);
}
throw new ServletException("Parameter " + parameter + " not found");
}
return value.trim();
}
protected String getParameter(HttpServletRequest req, String parameter,
String defaultValue) {
String value = req.getParameter(parameter);
if (value == null || value.trim().isEmpty()) {
value = defaultValue;
}
return value.trim();
}
protected void setSuccess(HttpServletResponse resp) {
setSuccess(resp, 0);
}
protected void setSuccess(HttpServletResponse resp, int size) {
resp.setStatus(HttpServletResponse.SC_OK);
resp.setContentType("text/plain");
resp.setContentLength(size);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import com.google.appengine.api.datastore.DatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.EntityNotFoundException;
import com.google.appengine.api.datastore.Key;
import com.google.appengine.api.datastore.KeyFactory;
import java.util.logging.Logger;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
/**
* Context initializer that loads the API key from the App Engine datastore.
*/
public class ApiKeyInitializer implements ServletContextListener {
static final String ATTRIBUTE_ACCESS_KEY = "apiKey";
private static final String ENTITY_KIND = "Settings";
private static final String ENTITY_KEY = "MyKey";
private static final String ACCESS_KEY_FIELD = "ApiKey";
private final Logger logger = Logger.getLogger(getClass().getName());
@Override
public void contextInitialized(ServletContextEvent event) {
DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
Key key = KeyFactory.createKey(ENTITY_KIND, ENTITY_KEY);
Entity entity;
try {
entity = datastore.get(key);
} catch (EntityNotFoundException e) {
entity = new Entity(key);
// NOTE: it's not possible to change entities in the local server, so
// it will be necessary to hardcode the API key below if you are running
// it locally.
entity.setProperty(ACCESS_KEY_FIELD,
"replace_this_text_by_your_Simple_API_Access_key");
datastore.put(entity);
logger.severe("Created fake key. Please go to App Engine admin "
+ "console, change its value to your API Key (the entity "
+ "type is '" + ENTITY_KIND + "' and its field to be changed is '"
+ ACCESS_KEY_FIELD + "'), then restart the server!");
}
String accessKey = (String) entity.getProperty(ACCESS_KEY_FIELD);
event.getServletContext().setAttribute(ATTRIBUTE_ACCESS_KEY, accessKey);
}
@Override
public void contextDestroyed(ServletContextEvent event) {
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that adds display number of devices and button to send a message.
* <p>
* This servlet is used just by the browser (i.e., not device) and contains the
* main page of the demo app.
*/
@SuppressWarnings("serial")
public class HomeServlet extends BaseServlet {
static final String ATTRIBUTE_STATUS = "status";
/**
* Displays the existing messages and offer the option to send a new one.
*/
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
resp.setContentType("text/html");
PrintWriter out = resp.getWriter();
out.print("<html><body>");
out.print("<head>");
out.print(" <title>GCM Demo</title>");
out.print(" <link rel='icon' href='favicon.png'/>");
out.print("</head>");
String status = (String) req.getAttribute(ATTRIBUTE_STATUS);
if (status != null) {
out.print(status);
}
List<String> devices = Datastore.getDevices();
if (devices.isEmpty()) {
out.print("<h2>No devices registered!</h2>");
} else {
out.print("<h2>" + devices.size() + " device(s) registered!</h2>");
out.print("<form name='form' method='POST' action='sendAll'>");
out.print("<input type='submit' value='Send Message' />");
out.print("</form>");
}
out.print("</body></html>");
resp.setStatus(HttpServletResponse.SC_OK);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
doGet(req, resp);
}
}
| Java |
/*
* Copyright 2013 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.support.v4.content.WakefulBroadcastReceiver;
/**
* This {@code WakefulBroadcastReceiver} takes care of creating and managing a
* partial wake lock for your app. It passes off the work of processing the GCM
* message to an {@code IntentService}, while ensuring that the device does not
* go back to sleep in the transition. The {@code IntentService} calls
* {@code GcmBroadcastReceiver.completeWakefulIntent()} when it is ready to
* release the wake lock.
*/
public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// Explicitly specify that GcmIntentService will handle the intent.
ComponentName comp = new ComponentName(context.getPackageName(),
GcmIntentService.class.getName());
// Start the service, keeping the device awake while it is launching.
startWakefulService(context, (intent.setComponent(comp)));
setResultCode(Activity.RESULT_OK);
}
}
| Java |
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import com.google.android.gms.gcm.GoogleCloudMessaging;
import android.app.IntentService;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.SystemClock;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
/**
* This {@code IntentService} does the actual handling of the GCM message.
* {@code GcmBroadcastReceiver} (a {@code WakefulBroadcastReceiver}) holds a
* partial wake lock for this service while the service does its work. When the
* service is finished, it calls {@code completeWakefulIntent()} to release the
* wake lock.
*/
public class GcmIntentService extends IntentService {
public static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
NotificationCompat.Builder builder;
public GcmIntentService() {
super("GcmIntentService");
}
public static final String TAG = "GCM Demo";
@Override
protected void onHandleIntent(Intent intent) {
Bundle extras = intent.getExtras();
GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
// The getMessageType() intent parameter must be the intent you received
// in your BroadcastReceiver.
String messageType = gcm.getMessageType(intent);
if (!extras.isEmpty()) { // has effect of unparcelling Bundle
/*
* Filter messages based on message type. Since it is likely that GCM will be
* extended in the future with new message types, just ignore any message types you're
* not interested in, or that you don't recognize.
*/
if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
sendNotification("Send error: " + extras.toString());
} else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) {
sendNotification("Deleted messages on server: " + extras.toString());
// If it's a regular GCM message, do some work.
} else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) {
// This loop represents the service doing some work.
for (int i = 0; i < 5; i++) {
Log.i(TAG, "Working... " + (i + 1)
+ "/5 @ " + SystemClock.elapsedRealtime());
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
}
Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
// Post notification of received message.
sendNotification("Received: " + extras.toString());
Log.i(TAG, "Received: " + extras.toString());
}
}
// Release the wake lock provided by the WakefulBroadcastReceiver.
GcmBroadcastReceiver.completeWakefulIntent(intent);
}
// Put the message into a notification and post it.
// This is just one simple example of what you might choose to do with
// a GCM message.
private void sendNotification(String msg) {
mNotificationManager = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, DemoActivity.class), 0);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_stat_gcm)
.setContentTitle("GCM Notification")
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(msg))
.setContentText(msg);
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}
}
| Java |
/*
* Copyright 2013 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.gcm.GoogleCloudMessaging;
import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Main UI for the demo app.
*/
public class DemoActivity extends Activity {
public static final String EXTRA_MESSAGE = "message";
public static final String PROPERTY_REG_ID = "registration_id";
private static final String PROPERTY_APP_VERSION = "appVersion";
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
/**
* Substitute you own sender ID here. This is the project number you got
* from the API Console, as described in "Getting Started."
*/
String SENDER_ID = "Your-Sender-ID";
/**
* Tag used on log messages.
*/
static final String TAG = "GCM Demo";
TextView mDisplay;
GoogleCloudMessaging gcm;
AtomicInteger msgId = new AtomicInteger();
Context context;
String regid;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mDisplay = (TextView) findViewById(R.id.display);
context = getApplicationContext();
// Check device for Play Services APK. If check succeeds, proceed with GCM registration.
if (checkPlayServices()) {
gcm = GoogleCloudMessaging.getInstance(this);
regid = getRegistrationId(context);
if (regid.isEmpty()) {
registerInBackground();
}
} else {
Log.i(TAG, "No valid Google Play Services APK found.");
}
}
@Override
protected void onResume() {
super.onResume();
// Check device for Play Services APK.
checkPlayServices();
}
/**
* Check the device to make sure it has the Google Play Services APK. If
* it doesn't, display a dialog that allows users to download the APK from
* the Google Play Store or enable it in the device's system settings.
*/
private boolean checkPlayServices() {
int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
PLAY_SERVICES_RESOLUTION_REQUEST).show();
} else {
Log.i(TAG, "This device is not supported.");
finish();
}
return false;
}
return true;
}
/**
* Stores the registration ID and the app versionCode in the application's
* {@code SharedPreferences}.
*
* @param context application's context.
* @param regId registration ID
*/
private void storeRegistrationId(Context context, String regId) {
final SharedPreferences prefs = getGcmPreferences(context);
int appVersion = getAppVersion(context);
Log.i(TAG, "Saving regId on app version " + appVersion);
SharedPreferences.Editor editor = prefs.edit();
editor.putString(PROPERTY_REG_ID, regId);
editor.putInt(PROPERTY_APP_VERSION, appVersion);
editor.commit();
}
/**
* Gets the current registration ID for application on GCM service, if there is one.
* <p>
* If result is empty, the app needs to register.
*
* @return registration ID, or empty string if there is no existing
* registration ID.
*/
private String getRegistrationId(Context context) {
final SharedPreferences prefs = getGcmPreferences(context);
String registrationId = prefs.getString(PROPERTY_REG_ID, "");
if (registrationId.isEmpty()) {
Log.i(TAG, "Registration not found.");
return "";
}
// Check if app was updated; if so, it must clear the registration ID
// since the existing regID is not guaranteed to work with the new
// app version.
int registeredVersion = prefs.getInt(PROPERTY_APP_VERSION, Integer.MIN_VALUE);
int currentVersion = getAppVersion(context);
if (registeredVersion != currentVersion) {
Log.i(TAG, "App version changed.");
return "";
}
return registrationId;
}
/**
* Registers the application with GCM servers asynchronously.
* <p>
* Stores the registration ID and the app versionCode in the application's
* shared preferences.
*/
private void registerInBackground() {
new AsyncTask<Void, Void, String>() {
@Override
protected String doInBackground(Void... params) {
String msg = "";
try {
if (gcm == null) {
gcm = GoogleCloudMessaging.getInstance(context);
}
regid = gcm.register(SENDER_ID);
msg = "Device registered, registration ID=" + regid;
// You should send the registration ID to your server over HTTP, so it
// can use GCM/HTTP or CCS to send messages to your app.
sendRegistrationIdToBackend();
// For this demo: we don't need to send it because the device will send
// upstream messages to a server that echo back the message using the
// 'from' address in the message.
// Persist the regID - no need to register again.
storeRegistrationId(context, regid);
} catch (IOException ex) {
msg = "Error :" + ex.getMessage();
// If there is an error, don't just keep trying to register.
// Require the user to click a button again, or perform
// exponential back-off.
}
return msg;
}
@Override
protected void onPostExecute(String msg) {
mDisplay.append(msg + "\n");
}
}.execute(null, null, null);
}
// Send an upstream message.
public void onClick(final View view) {
if (view == findViewById(R.id.send)) {
new AsyncTask<Void, Void, String>() {
@Override
protected String doInBackground(Void... params) {
String msg = "";
try {
Bundle data = new Bundle();
data.putString("my_message", "Hello World");
data.putString("my_action", "com.google.android.gcm.demo.app.ECHO_NOW");
String id = Integer.toString(msgId.incrementAndGet());
gcm.send(SENDER_ID + "@gcm.googleapis.com", id, data);
msg = "Sent message";
} catch (IOException ex) {
msg = "Error :" + ex.getMessage();
}
return msg;
}
@Override
protected void onPostExecute(String msg) {
mDisplay.append(msg + "\n");
}
}.execute(null, null, null);
} else if (view == findViewById(R.id.clear)) {
mDisplay.setText("");
}
}
@Override
protected void onDestroy() {
super.onDestroy();
}
/**
* @return Application's version code from the {@code PackageManager}.
*/
private static int getAppVersion(Context context) {
try {
PackageInfo packageInfo = context.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
return packageInfo.versionCode;
} catch (NameNotFoundException e) {
// should never happen
throw new RuntimeException("Could not get package name: " + e);
}
}
/**
* @return Application's {@code SharedPreferences}.
*/
private SharedPreferences getGcmPreferences(Context context) {
// This sample app persists the registration ID in shared preferences, but
// how you store the regID in your app is up to you.
return getSharedPreferences(DemoActivity.class.getSimpleName(),
Context.MODE_PRIVATE);
}
/**
* Sends the registration ID to your server over HTTP, so it can use GCM/HTTP or CCS to send
* messages to your app. Not needed for this demo since the device sends upstream messages
* to a server that echoes back the message using the 'from' address in the message.
*/
private void sendRegistrationIdToBackend() {
// Your implementation here.
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
/**
* Simple implementation of a data store using standard Java collections.
* <p>
* This class is thread-safe but not persistent (it will lost the data when the
* app is restarted) - it is meant just as an example.
*/
public final class Datastore {
private static final List<String> regIds = new ArrayList<String>();
private static final Logger logger =
Logger.getLogger(Datastore.class.getName());
private Datastore() {
throw new UnsupportedOperationException();
}
/**
* Registers a device.
*/
public static void register(String regId) {
logger.info("Registering " + regId);
synchronized (regIds) {
regIds.add(regId);
}
}
/**
* Unregisters a device.
*/
public static void unregister(String regId) {
logger.info("Unregistering " + regId);
synchronized (regIds) {
regIds.remove(regId);
}
}
/**
* Updates the registration id of a device.
*/
public static void updateRegistration(String oldId, String newId) {
logger.info("Updating " + oldId + " to " + newId);
synchronized (regIds) {
regIds.remove(oldId);
regIds.add(newId);
}
}
/**
* Gets all registered devices.
*/
public static List<String> getDevices() {
synchronized (regIds) {
return new ArrayList<String>(regIds);
}
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that unregisters a device, whose registration id is identified by
* {@link #PARAMETER_REG_ID}.
* <p>
* The client app should call this servlet everytime it receives a
* {@code com.google.android.c2dm.intent.REGISTRATION} with an
* {@code unregistered} extra.
*/
@SuppressWarnings("serial")
public class UnregisterServlet extends BaseServlet {
private static final String PARAMETER_REG_ID = "regId";
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException {
String regId = getParameter(req, PARAMETER_REG_ID);
Datastore.unregister(regId);
setSuccess(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that adds display number of devices and button to send a message.
* <p>
* This servlet is used just by the browser (i.e., not device) and contains the
* main page of the demo app.
*/
@SuppressWarnings("serial")
public class HomeServlet extends BaseServlet {
static final String ATTRIBUTE_STATUS = "status";
/**
* Displays the existing messages and offer the option to send a new one.
*/
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
resp.setContentType("text/html");
PrintWriter out = resp.getWriter();
out.print("<html><body>");
out.print("<head>");
out.print(" <title>GCM Demo</title>");
out.print(" <link rel='icon' href='favicon.png'/>");
out.print("</head>");
String status = (String) req.getAttribute(ATTRIBUTE_STATUS);
if (status != null) {
out.print(status);
}
List<String> devices = Datastore.getDevices();
if (devices.isEmpty()) {
out.print("<h2>No devices registered!</h2>");
} else {
out.print("<h2>" + devices.size() + " device(s) registered!</h2>");
out.print("<form name='form' method='POST' action='sendAll'>");
out.print("<input type='submit' value='Send Message' />");
out.print("</form>");
}
out.print("</body></html>");
resp.setStatus(HttpServletResponse.SC_OK);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
doGet(req, resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.IOException;
import java.util.Enumeration;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Skeleton class for all servlets in this package.
*/
@SuppressWarnings("serial")
abstract class BaseServlet extends HttpServlet {
// change to true to allow GET calls
static final boolean DEBUG = true;
protected final Logger logger = Logger.getLogger(getClass().getName());
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
if (DEBUG) {
doPost(req, resp);
} else {
super.doGet(req, resp);
}
}
protected String getParameter(HttpServletRequest req, String parameter)
throws ServletException {
String value = req.getParameter(parameter);
if (isEmptyOrNull(value)) {
if (DEBUG) {
StringBuilder parameters = new StringBuilder();
@SuppressWarnings("unchecked")
Enumeration<String> names = req.getParameterNames();
while (names.hasMoreElements()) {
String name = names.nextElement();
String param = req.getParameter(name);
parameters.append(name).append("=").append(param).append("\n");
}
logger.fine("parameters: " + parameters);
}
throw new ServletException("Parameter " + parameter + " not found");
}
return value.trim();
}
protected String getParameter(HttpServletRequest req, String parameter,
String defaultValue) {
String value = req.getParameter(parameter);
if (isEmptyOrNull(value)) {
value = defaultValue;
}
return value.trim();
}
protected void setSuccess(HttpServletResponse resp) {
setSuccess(resp, 0);
}
protected void setSuccess(HttpServletResponse resp, int size) {
resp.setStatus(HttpServletResponse.SC_OK);
resp.setContentType("text/plain");
resp.setContentLength(size);
}
protected boolean isEmptyOrNull(String value) {
return value == null || value.trim().length() == 0;
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that registers a device, whose registration id is identified by
* {@link #PARAMETER_REG_ID}.
*
* <p>
* The client app should call this servlet everytime it receives a
* {@code com.google.android.c2dm.intent.REGISTRATION C2DM} intent without an
* error or {@code unregistered} extra.
*/
@SuppressWarnings("serial")
public class RegisterServlet extends BaseServlet {
private static final String PARAMETER_REG_ID = "regId";
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException {
String regId = getParameter(req, PARAMETER_REG_ID);
Datastore.register(regId);
setSuccess(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import com.google.android.gcm.server.Constants;
import com.google.android.gcm.server.Message;
import com.google.android.gcm.server.MulticastResult;
import com.google.android.gcm.server.Result;
import com.google.android.gcm.server.Sender;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.logging.Level;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that adds a new message to all registered devices.
* <p>
* This servlet is used just by the browser (i.e., not device).
*/
@SuppressWarnings("serial")
public class SendAllMessagesServlet extends BaseServlet {
private static final int MULTICAST_SIZE = 1000;
private Sender sender;
private static final Executor threadPool = Executors.newFixedThreadPool(5);
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
sender = newSender(config);
}
/**
* Creates the {@link Sender} based on the servlet settings.
*/
protected Sender newSender(ServletConfig config) {
String key = (String) config.getServletContext()
.getAttribute(ApiKeyInitializer.ATTRIBUTE_ACCESS_KEY);
return new Sender(key);
}
/**
* Processes the request to add a new message.
*/
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
List<String> devices = Datastore.getDevices();
String status;
if (devices.isEmpty()) {
status = "Message ignored as there is no device registered!";
} else {
// NOTE: check below is for demonstration purposes; a real application
// could always send a multicast, even for just one recipient
if (devices.size() == 1) {
// send a single message using plain post
String registrationId = devices.get(0);
Message message = new Message.Builder().build();
Result result = sender.send(message, registrationId, 5);
status = "Sent message to one device: " + result;
} else {
// send a multicast message using JSON
// must split in chunks of 1000 devices (GCM limit)
int total = devices.size();
List<String> partialDevices = new ArrayList<String>(total);
int counter = 0;
int tasks = 0;
for (String device : devices) {
counter++;
partialDevices.add(device);
int partialSize = partialDevices.size();
if (partialSize == MULTICAST_SIZE || counter == total) {
asyncSend(partialDevices);
partialDevices.clear();
tasks++;
}
}
status = "Asynchronously sending " + tasks + " multicast messages to " +
total + " devices";
}
}
req.setAttribute(HomeServlet.ATTRIBUTE_STATUS, status.toString());
getServletContext().getRequestDispatcher("/home").forward(req, resp);
}
private void asyncSend(List<String> partialDevices) {
// make a copy
final List<String> devices = new ArrayList<String>(partialDevices);
threadPool.execute(new Runnable() {
public void run() {
Message message = new Message.Builder().build();
MulticastResult multicastResult;
try {
multicastResult = sender.send(message, devices, 5);
} catch (IOException e) {
logger.log(Level.SEVERE, "Error posting messages", e);
return;
}
List<Result> results = multicastResult.getResults();
// analyze the results
for (int i = 0; i < devices.size(); i++) {
String regId = devices.get(i);
Result result = results.get(i);
String messageId = result.getMessageId();
if (messageId != null) {
logger.fine("Succesfully sent message to device: " + regId +
"; messageId = " + messageId);
String canonicalRegId = result.getCanonicalRegistrationId();
if (canonicalRegId != null) {
// same device has more than on registration id: update it
logger.info("canonicalRegId " + canonicalRegId);
Datastore.updateRegistration(regId, canonicalRegId);
}
} else {
String error = result.getErrorCodeName();
if (error.equals(Constants.ERROR_NOT_REGISTERED)) {
// application has been removed from device - unregister it
logger.info("Unregistered device: " + regId);
Datastore.unregister(regId);
} else {
logger.severe("Error sending message to " + regId + ": " + error);
}
}
}
}});
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
/**
* Context initializer that loads the API key from a
* {@value #PATH} file located in the classpath (typically under
* {@code WEB-INF/classes}).
*/
public class ApiKeyInitializer implements ServletContextListener {
static final String ATTRIBUTE_ACCESS_KEY = "apiKey";
private static final String PATH = "/api.key";
private final Logger logger = Logger.getLogger(getClass().getName());
public void contextInitialized(ServletContextEvent event) {
logger.info("Reading " + PATH + " from resources (probably from " +
"WEB-INF/classes");
String key = getKey();
event.getServletContext().setAttribute(ATTRIBUTE_ACCESS_KEY, key);
}
/**
* Gets the access key.
*/
protected String getKey() {
InputStream stream = Thread.currentThread().getContextClassLoader()
.getResourceAsStream(PATH);
if (stream == null) {
throw new IllegalStateException("Could not find file " + PATH +
" on web resources)");
}
BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
try {
String key = reader.readLine();
return key;
} catch (IOException e) {
throw new RuntimeException("Could not read file " + PATH, e);
} finally {
try {
reader.close();
} catch (IOException e) {
logger.log(Level.WARNING, "Exception closing " + PATH, e);
}
}
}
public void contextDestroyed(ServletContextEvent event) {
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import com.google.appengine.api.datastore.DatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.EntityNotFoundException;
import com.google.appengine.api.datastore.FetchOptions;
import com.google.appengine.api.datastore.Key;
import com.google.appengine.api.datastore.KeyFactory;
import com.google.appengine.api.datastore.PreparedQuery;
import com.google.appengine.api.datastore.Query;
import com.google.appengine.api.datastore.Query.FilterOperator;
import com.google.appengine.api.datastore.Transaction;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.logging.Logger;
/**
* Simple implementation of a data store using standard Java collections.
* <p>
* This class is neither persistent (it will lost the data when the app is
* restarted) nor thread safe.
*/
public final class Datastore {
static final int MULTICAST_SIZE = 1000;
private static final String DEVICE_TYPE = "Device";
private static final String DEVICE_REG_ID_PROPERTY = "regId";
private static final String MULTICAST_TYPE = "Multicast";
private static final String MULTICAST_REG_IDS_PROPERTY = "regIds";
private static final FetchOptions DEFAULT_FETCH_OPTIONS = FetchOptions.Builder
.withPrefetchSize(MULTICAST_SIZE).chunkSize(MULTICAST_SIZE);
private static final Logger logger =
Logger.getLogger(Datastore.class.getName());
private static final DatastoreService datastore =
DatastoreServiceFactory.getDatastoreService();
private Datastore() {
throw new UnsupportedOperationException();
}
/**
* Registers a device.
*
* @param regId device's registration id.
*/
public static void register(String regId) {
logger.info("Registering " + regId);
Transaction txn = datastore.beginTransaction();
try {
Entity entity = findDeviceByRegId(regId);
if (entity != null) {
logger.fine(regId + " is already registered; ignoring.");
return;
}
entity = new Entity(DEVICE_TYPE);
entity.setProperty(DEVICE_REG_ID_PROPERTY, regId);
datastore.put(entity);
txn.commit();
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
}
/**
* Unregisters a device.
*
* @param regId device's registration id.
*/
public static void unregister(String regId) {
logger.info("Unregistering " + regId);
Transaction txn = datastore.beginTransaction();
try {
Entity entity = findDeviceByRegId(regId);
if (entity == null) {
logger.warning("Device " + regId + " already unregistered");
} else {
Key key = entity.getKey();
datastore.delete(key);
}
txn.commit();
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
}
/**
* Updates the registration id of a device.
*/
public static void updateRegistration(String oldId, String newId) {
logger.info("Updating " + oldId + " to " + newId);
Transaction txn = datastore.beginTransaction();
try {
Entity entity = findDeviceByRegId(oldId);
if (entity == null) {
logger.warning("No device for registration id " + oldId);
return;
}
entity.setProperty(DEVICE_REG_ID_PROPERTY, newId);
datastore.put(entity);
txn.commit();
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
}
/**
* Gets all registered devices.
*/
public static List<String> getDevices() {
List<String> devices;
Transaction txn = datastore.beginTransaction();
try {
Query query = new Query(DEVICE_TYPE);
Iterable<Entity> entities =
datastore.prepare(query).asIterable(DEFAULT_FETCH_OPTIONS);
devices = new ArrayList<String>();
for (Entity entity : entities) {
String device = (String) entity.getProperty(DEVICE_REG_ID_PROPERTY);
devices.add(device);
}
txn.commit();
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
return devices;
}
/**
* Gets the number of total devices.
*/
public static int getTotalDevices() {
Transaction txn = datastore.beginTransaction();
try {
Query query = new Query(DEVICE_TYPE).setKeysOnly();
List<Entity> allKeys =
datastore.prepare(query).asList(DEFAULT_FETCH_OPTIONS);
int total = allKeys.size();
logger.fine("Total number of devices: " + total);
txn.commit();
return total;
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
}
private static Entity findDeviceByRegId(String regId) {
Query query = new Query(DEVICE_TYPE)
.addFilter(DEVICE_REG_ID_PROPERTY, FilterOperator.EQUAL, regId);
PreparedQuery preparedQuery = datastore.prepare(query);
List<Entity> entities = preparedQuery.asList(DEFAULT_FETCH_OPTIONS);
Entity entity = null;
if (!entities.isEmpty()) {
entity = entities.get(0);
}
int size = entities.size();
if (size > 0) {
logger.severe(
"Found " + size + " entities for regId " + regId + ": " + entities);
}
return entity;
}
/**
* Creates a persistent record with the devices to be notified using a
* multicast message.
*
* @param devices registration ids of the devices.
* @return encoded key for the persistent record.
*/
public static String createMulticast(List<String> devices) {
logger.info("Storing multicast for " + devices.size() + " devices");
String encodedKey;
Transaction txn = datastore.beginTransaction();
try {
Entity entity = new Entity(MULTICAST_TYPE);
entity.setProperty(MULTICAST_REG_IDS_PROPERTY, devices);
datastore.put(entity);
Key key = entity.getKey();
encodedKey = KeyFactory.keyToString(key);
logger.fine("multicast key: " + encodedKey);
txn.commit();
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
return encodedKey;
}
/**
* Gets a persistent record with the devices to be notified using a
* multicast message.
*
* @param encodedKey encoded key for the persistent record.
*/
public static List<String> getMulticast(String encodedKey) {
Key key = KeyFactory.stringToKey(encodedKey);
Entity entity;
Transaction txn = datastore.beginTransaction();
try {
entity = datastore.get(key);
@SuppressWarnings("unchecked")
List<String> devices =
(List<String>) entity.getProperty(MULTICAST_REG_IDS_PROPERTY);
txn.commit();
return devices;
} catch (EntityNotFoundException e) {
logger.severe("No entity for key " + key);
return Collections.emptyList();
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
}
/**
* Updates a persistent record with the devices to be notified using a
* multicast message.
*
* @param encodedKey encoded key for the persistent record.
* @param devices new list of registration ids of the devices.
*/
public static void updateMulticast(String encodedKey, List<String> devices) {
Key key = KeyFactory.stringToKey(encodedKey);
Entity entity;
Transaction txn = datastore.beginTransaction();
try {
try {
entity = datastore.get(key);
} catch (EntityNotFoundException e) {
logger.severe("No entity for key " + key);
return;
}
entity.setProperty(MULTICAST_REG_IDS_PROPERTY, devices);
datastore.put(entity);
txn.commit();
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
}
/**
* Deletes a persistent record with the devices to be notified using a
* multicast message.
*
* @param encodedKey encoded key for the persistent record.
*/
public static void deleteMulticast(String encodedKey) {
Transaction txn = datastore.beginTransaction();
try {
Key key = KeyFactory.stringToKey(encodedKey);
datastore.delete(key);
txn.commit();
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that unregisters a device, whose registration id is identified by
* {@link #PARAMETER_REG_ID}.
* <p>
* The client app should call this servlet everytime it receives a
* {@code com.google.android.c2dm.intent.REGISTRATION} with an
* {@code unregistered} extra.
*/
@SuppressWarnings("serial")
public class UnregisterServlet extends BaseServlet {
private static final String PARAMETER_REG_ID = "regId";
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException {
String regId = getParameter(req, PARAMETER_REG_ID);
Datastore.unregister(regId);
setSuccess(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that adds display number of devices and button to send a message.
* <p>
* This servlet is used just by the browser (i.e., not device) and contains the
* main page of the demo app.
*/
@SuppressWarnings("serial")
public class HomeServlet extends BaseServlet {
static final String ATTRIBUTE_STATUS = "status";
/**
* Displays the existing messages and offer the option to send a new one.
*/
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
resp.setContentType("text/html");
PrintWriter out = resp.getWriter();
out.print("<html><body>");
out.print("<head>");
out.print(" <title>GCM Demo</title>");
out.print(" <link rel='icon' href='favicon.png'/>");
out.print("</head>");
String status = (String) req.getAttribute(ATTRIBUTE_STATUS);
if (status != null) {
out.print(status);
}
int total = Datastore.getTotalDevices();
if (total == 0) {
out.print("<h2>No devices registered!</h2>");
} else {
out.print("<h2>" + total + " device(s) registered!</h2>");
out.print("<form name='form' method='POST' action='sendAll'>");
out.print("<input type='submit' value='Send Message' />");
out.print("</form>");
}
out.print("</body></html>");
resp.setStatus(HttpServletResponse.SC_OK);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
doGet(req, resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import java.io.IOException;
import java.util.Enumeration;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Skeleton class for all servlets in this package.
*/
@SuppressWarnings("serial")
abstract class BaseServlet extends HttpServlet {
// change to true to allow GET calls
static final boolean DEBUG = true;
protected final Logger logger = Logger.getLogger(getClass().getName());
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
if (DEBUG) {
doPost(req, resp);
} else {
super.doGet(req, resp);
}
}
protected String getParameter(HttpServletRequest req, String parameter)
throws ServletException {
String value = req.getParameter(parameter);
if (isEmptyOrNull(value)) {
if (DEBUG) {
StringBuilder parameters = new StringBuilder();
@SuppressWarnings("unchecked")
Enumeration<String> names = req.getParameterNames();
while (names.hasMoreElements()) {
String name = names.nextElement();
String param = req.getParameter(name);
parameters.append(name).append("=").append(param).append("\n");
}
logger.fine("parameters: " + parameters);
}
throw new ServletException("Parameter " + parameter + " not found");
}
return value.trim();
}
protected String getParameter(HttpServletRequest req, String parameter,
String defaultValue) {
String value = req.getParameter(parameter);
if (isEmptyOrNull(value)) {
value = defaultValue;
}
return value.trim();
}
protected void setSuccess(HttpServletResponse resp) {
setSuccess(resp, 0);
}
protected void setSuccess(HttpServletResponse resp, int size) {
resp.setStatus(HttpServletResponse.SC_OK);
resp.setContentType("text/plain");
resp.setContentLength(size);
}
protected boolean isEmptyOrNull(String value) {
return value == null || value.trim().length() == 0;
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import com.google.android.gcm.server.Constants;
import com.google.android.gcm.server.Message;
import com.google.android.gcm.server.MulticastResult;
import com.google.android.gcm.server.Result;
import com.google.android.gcm.server.Sender;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that sends a message to a device.
* <p>
* This servlet is invoked by AppEngine's Push Queue mechanism.
*/
@SuppressWarnings("serial")
public class SendMessageServlet extends BaseServlet {
private static final String HEADER_QUEUE_COUNT = "X-AppEngine-TaskRetryCount";
private static final String HEADER_QUEUE_NAME = "X-AppEngine-QueueName";
private static final int MAX_RETRY = 3;
static final String PARAMETER_DEVICE = "device";
static final String PARAMETER_MULTICAST = "multicastKey";
private Sender sender;
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
sender = newSender(config);
}
/**
* Creates the {@link Sender} based on the servlet settings.
*/
protected Sender newSender(ServletConfig config) {
String key = (String) config.getServletContext()
.getAttribute(ApiKeyInitializer.ATTRIBUTE_ACCESS_KEY);
return new Sender(key);
}
/**
* Indicates to App Engine that this task should be retried.
*/
private void retryTask(HttpServletResponse resp) {
resp.setStatus(500);
}
/**
* Indicates to App Engine that this task is done.
*/
private void taskDone(HttpServletResponse resp) {
resp.setStatus(200);
}
/**
* Processes the request to add a new message.
*/
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
if (req.getHeader(HEADER_QUEUE_NAME) == null) {
throw new IOException("Missing header " + HEADER_QUEUE_NAME);
}
String retryCountHeader = req.getHeader(HEADER_QUEUE_COUNT);
logger.fine("retry count: " + retryCountHeader);
if (retryCountHeader != null) {
int retryCount = Integer.parseInt(retryCountHeader);
if (retryCount > MAX_RETRY) {
logger.severe("Too many retries, dropping task");
taskDone(resp);
return;
}
}
String regId = req.getParameter(PARAMETER_DEVICE);
if (regId != null) {
sendSingleMessage(regId, resp);
return;
}
String multicastKey = req.getParameter(PARAMETER_MULTICAST);
if (multicastKey != null) {
sendMulticastMessage(multicastKey, resp);
return;
}
logger.severe("Invalid request!");
taskDone(resp);
return;
}
private Message createMessage() {
Message message = new Message.Builder().build();
return message;
}
private void sendSingleMessage(String regId, HttpServletResponse resp) {
logger.info("Sending message to device " + regId);
Message message = createMessage();
Result result;
try {
result = sender.sendNoRetry(message, regId);
} catch (IOException e) {
logger.log(Level.SEVERE, "Exception posting " + message, e);
taskDone(resp);
return;
}
if (result == null) {
retryTask(resp);
return;
}
if (result.getMessageId() != null) {
logger.info("Succesfully sent message to device " + regId);
String canonicalRegId = result.getCanonicalRegistrationId();
if (canonicalRegId != null) {
// same device has more than on registration id: update it
logger.finest("canonicalRegId " + canonicalRegId);
Datastore.updateRegistration(regId, canonicalRegId);
}
} else {
String error = result.getErrorCodeName();
if (error.equals(Constants.ERROR_NOT_REGISTERED)) {
// application has been removed from device - unregister it
Datastore.unregister(regId);
} else {
logger.severe("Error sending message to device " + regId
+ ": " + error);
}
}
}
private void sendMulticastMessage(String multicastKey,
HttpServletResponse resp) {
// Recover registration ids from datastore
List<String> regIds = Datastore.getMulticast(multicastKey);
Message message = createMessage();
MulticastResult multicastResult;
try {
multicastResult = sender.sendNoRetry(message, regIds);
} catch (IOException e) {
logger.log(Level.SEVERE, "Exception posting " + message, e);
multicastDone(resp, multicastKey);
return;
}
boolean allDone = true;
// check if any registration id must be updated
if (multicastResult.getCanonicalIds() != 0) {
List<Result> results = multicastResult.getResults();
for (int i = 0; i < results.size(); i++) {
String canonicalRegId = results.get(i).getCanonicalRegistrationId();
if (canonicalRegId != null) {
String regId = regIds.get(i);
Datastore.updateRegistration(regId, canonicalRegId);
}
}
}
if (multicastResult.getFailure() != 0) {
// there were failures, check if any could be retried
List<Result> results = multicastResult.getResults();
List<String> retriableRegIds = new ArrayList<String>();
for (int i = 0; i < results.size(); i++) {
String error = results.get(i).getErrorCodeName();
if (error != null) {
String regId = regIds.get(i);
logger.warning("Got error (" + error + ") for regId " + regId);
if (error.equals(Constants.ERROR_NOT_REGISTERED)) {
// application has been removed from device - unregister it
Datastore.unregister(regId);
}
if (error.equals(Constants.ERROR_UNAVAILABLE)) {
retriableRegIds.add(regId);
}
}
}
if (!retriableRegIds.isEmpty()) {
// update task
Datastore.updateMulticast(multicastKey, retriableRegIds);
allDone = false;
retryTask(resp);
}
}
if (allDone) {
multicastDone(resp, multicastKey);
} else {
retryTask(resp);
}
}
private void multicastDone(HttpServletResponse resp, String encodedKey) {
Datastore.deleteMulticast(encodedKey);
taskDone(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that registers a device, whose registration id is identified by
* {@link #PARAMETER_REG_ID}.
*
* <p>
* The client app should call this servlet everytime it receives a
* {@code com.google.android.c2dm.intent.REGISTRATION C2DM} intent without an
* error or {@code unregistered} extra.
*/
@SuppressWarnings("serial")
public class RegisterServlet extends BaseServlet {
private static final String PARAMETER_REG_ID = "regId";
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException {
String regId = getParameter(req, PARAMETER_REG_ID);
Datastore.register(regId);
setSuccess(resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import static com.google.appengine.api.taskqueue.TaskOptions.Builder.withUrl;
import com.google.appengine.api.taskqueue.Queue;
import com.google.appengine.api.taskqueue.QueueFactory;
import com.google.appengine.api.taskqueue.TaskOptions;
import com.google.appengine.api.taskqueue.TaskOptions.Method;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet that adds a new message to all registered devices.
* <p>
* This servlet is used just by the browser (i.e., not device).
*/
@SuppressWarnings("serial")
public class SendAllMessagesServlet extends BaseServlet {
/**
* Processes the request to add a new message.
*/
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException, ServletException {
List<String> devices = Datastore.getDevices();
String status;
if (devices.isEmpty()) {
status = "Message ignored as there is no device registered!";
} else {
Queue queue = QueueFactory.getQueue("gcm");
// NOTE: check below is for demonstration purposes; a real application
// could always send a multicast, even for just one recipient
if (devices.size() == 1) {
// send a single message using plain post
String device = devices.get(0);
queue.add(withUrl("/send").param(
SendMessageServlet.PARAMETER_DEVICE, device));
status = "Single message queued for registration id " + device;
} else {
// send a multicast message using JSON
// must split in chunks of 1000 devices (GCM limit)
int total = devices.size();
List<String> partialDevices = new ArrayList<String>(total);
int counter = 0;
int tasks = 0;
for (String device : devices) {
counter++;
partialDevices.add(device);
int partialSize = partialDevices.size();
if (partialSize == Datastore.MULTICAST_SIZE || counter == total) {
String multicastKey = Datastore.createMulticast(partialDevices);
logger.fine("Queuing " + partialSize + " devices on multicast " +
multicastKey);
TaskOptions taskOptions = TaskOptions.Builder
.withUrl("/send")
.param(SendMessageServlet.PARAMETER_MULTICAST, multicastKey)
.method(Method.POST);
queue.add(taskOptions);
partialDevices.clear();
tasks++;
}
}
status = "Queued tasks to send " + tasks + " multicast messages to " +
total + " devices";
}
}
req.setAttribute(HomeServlet.ATTRIBUTE_STATUS, status.toString());
getServletContext().getRequestDispatcher("/home").forward(req, resp);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.server;
import com.google.appengine.api.datastore.DatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.EntityNotFoundException;
import com.google.appengine.api.datastore.Key;
import com.google.appengine.api.datastore.KeyFactory;
import java.util.logging.Logger;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
/**
* Context initializer that loads the API key from the App Engine datastore.
*/
public class ApiKeyInitializer implements ServletContextListener {
static final String ATTRIBUTE_ACCESS_KEY = "apiKey";
private static final String ENTITY_KIND = "Settings";
private static final String ENTITY_KEY = "MyKey";
private static final String ACCESS_KEY_FIELD = "ApiKey";
private final Logger logger = Logger.getLogger(getClass().getName());
public void contextInitialized(ServletContextEvent event) {
DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
Key key = KeyFactory.createKey(ENTITY_KIND, ENTITY_KEY);
Entity entity;
try {
entity = datastore.get(key);
} catch (EntityNotFoundException e) {
entity = new Entity(key);
// NOTE: it's not possible to change entities in the local server, so
// it will be necessary to hardcode the API key below if you are running
// it locally.
entity.setProperty(ACCESS_KEY_FIELD,
"replace_this_text_by_your_Simple_API_Access_key");
datastore.put(entity);
logger.severe("Created fake key. Please go to App Engine admin "
+ "console, change its value to your API Key (the entity "
+ "type is '" + ENTITY_KIND + "' and its field to be changed is '"
+ ACCESS_KEY_FIELD + "'), then restart the server!");
}
String accessKey = (String) entity.getProperty(ACCESS_KEY_FIELD);
event.getServletContext().setAttribute(ATTRIBUTE_ACCESS_KEY, accessKey);
}
public void contextDestroyed(ServletContextEvent event) {
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import android.content.Context;
import android.content.Intent;
/**
* Helper class providing methods and constants common to other classes in the
* app.
*/
public final class CommonUtilities {
/**
* Base URL of the Demo Server (such as http://my_host:8080/gcm-demo)
*/
static final String SERVER_URL = null;
/**
* Google API project id registered to use GCM.
*/
static final String SENDER_ID = null;
/**
* Tag used on log messages.
*/
static final String TAG = "GCMDemo";
/**
* Intent used to display a message in the screen.
*/
static final String DISPLAY_MESSAGE_ACTION =
"com.google.android.gcm.demo.app.DISPLAY_MESSAGE";
/**
* Intent's extra that contains the message to be displayed.
*/
static final String EXTRA_MESSAGE = "message";
/**
* Notifies UI to display a message.
* <p>
* This method is defined in the common helper because it's used both by
* the UI and the background service.
*
* @param context application's context.
* @param message message to be displayed.
*/
static void displayMessage(Context context, String message) {
Intent intent = new Intent(DISPLAY_MESSAGE_ACTION);
intent.putExtra(EXTRA_MESSAGE, message);
context.sendBroadcast(intent);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import static com.google.android.gcm.demo.app.CommonUtilities.SENDER_ID;
import static com.google.android.gcm.demo.app.CommonUtilities.displayMessage;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import com.google.android.gcm.GCMBaseIntentService;
/**
* IntentService responsible for handling GCM messages.
*/
public class GCMIntentService extends GCMBaseIntentService {
@SuppressWarnings("hiding")
private static final String TAG = "GCMIntentService";
public GCMIntentService() {
super(SENDER_ID);
}
@Override
protected void onRegistered(Context context, String registrationId) {
Log.i(TAG, "Device registered: regId = " + registrationId);
displayMessage(context, getString(R.string.gcm_registered,
registrationId));
ServerUtilities.register(context, registrationId);
}
@Override
protected void onUnregistered(Context context, String registrationId) {
Log.i(TAG, "Device unregistered");
displayMessage(context, getString(R.string.gcm_unregistered));
ServerUtilities.unregister(context, registrationId);
}
@Override
protected void onMessage(Context context, Intent intent) {
Log.i(TAG, "Received message. Extras: " + intent.getExtras());
String message = getString(R.string.gcm_message);
displayMessage(context, message);
// notifies user
generateNotification(context, message);
}
@Override
protected void onDeletedMessages(Context context, int total) {
Log.i(TAG, "Received deleted messages notification");
String message = getString(R.string.gcm_deleted, total);
displayMessage(context, message);
// notifies user
generateNotification(context, message);
}
@Override
public void onError(Context context, String errorId) {
Log.i(TAG, "Received error: " + errorId);
displayMessage(context, getString(R.string.gcm_error, errorId));
}
@Override
protected boolean onRecoverableError(Context context, String errorId) {
// log message
Log.i(TAG, "Received recoverable error: " + errorId);
displayMessage(context, getString(R.string.gcm_recoverable_error,
errorId));
return super.onRecoverableError(context, errorId);
}
/**
* Issues a notification to inform the user that server has sent a message.
*/
private static void generateNotification(Context context, String message) {
int icon = R.drawable.ic_stat_gcm;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
Intent notificationIntent = new Intent(context, DemoActivity.class);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =
PendingIntent.getActivity(context, 0, notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(0, notification);
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import static com.google.android.gcm.demo.app.CommonUtilities.SERVER_URL;
import static com.google.android.gcm.demo.app.CommonUtilities.TAG;
import static com.google.android.gcm.demo.app.CommonUtilities.displayMessage;
import com.google.android.gcm.GCMRegistrar;
import android.content.Context;
import android.util.Log;
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Random;
/**
* Helper class used to communicate with the demo server.
*/
public final class ServerUtilities {
private static final int MAX_ATTEMPTS = 5;
private static final int BACKOFF_MILLI_SECONDS = 2000;
private static final Random random = new Random();
/**
* Register this account/device pair within the server.
*
*/
static void register(final Context context, final String regId) {
Log.i(TAG, "registering device (regId = " + regId + ")");
String serverUrl = SERVER_URL + "/register";
Map<String, String> params = new HashMap<String, String>();
params.put("regId", regId);
long backoff = BACKOFF_MILLI_SECONDS + random.nextInt(1000);
// Once GCM returns a registration id, we need to register it in the
// demo server. As the server might be down, we will retry it a couple
// times.
for (int i = 1; i <= MAX_ATTEMPTS; i++) {
Log.d(TAG, "Attempt #" + i + " to register");
try {
displayMessage(context, context.getString(
R.string.server_registering, i, MAX_ATTEMPTS));
post(serverUrl, params);
GCMRegistrar.setRegisteredOnServer(context, true);
String message = context.getString(R.string.server_registered);
CommonUtilities.displayMessage(context, message);
return;
} catch (IOException e) {
// Here we are simplifying and retrying on any error; in a real
// application, it should retry only on unrecoverable errors
// (like HTTP error code 503).
Log.e(TAG, "Failed to register on attempt " + i + ":" + e);
if (i == MAX_ATTEMPTS) {
break;
}
try {
Log.d(TAG, "Sleeping for " + backoff + " ms before retry");
Thread.sleep(backoff);
} catch (InterruptedException e1) {
// Activity finished before we complete - exit.
Log.d(TAG, "Thread interrupted: abort remaining retries!");
Thread.currentThread().interrupt();
return;
}
// increase backoff exponentially
backoff *= 2;
}
}
String message = context.getString(R.string.server_register_error,
MAX_ATTEMPTS);
CommonUtilities.displayMessage(context, message);
}
/**
* Unregister this account/device pair within the server.
*/
static void unregister(final Context context, final String regId) {
Log.i(TAG, "unregistering device (regId = " + regId + ")");
String serverUrl = SERVER_URL + "/unregister";
Map<String, String> params = new HashMap<String, String>();
params.put("regId", regId);
try {
post(serverUrl, params);
GCMRegistrar.setRegisteredOnServer(context, false);
String message = context.getString(R.string.server_unregistered);
CommonUtilities.displayMessage(context, message);
} catch (IOException e) {
// At this point the device is unregistered from GCM, but still
// registered in the server.
// We could try to unregister again, but it is not necessary:
// if the server tries to send a message to the device, it will get
// a "NotRegistered" error message and should unregister the device.
String message = context.getString(R.string.server_unregister_error,
e.getMessage());
CommonUtilities.displayMessage(context, message);
}
}
/**
* Issue a POST request to the server.
*
* @param endpoint POST address.
* @param params request parameters.
*
* @throws IOException propagated from POST.
*/
private static void post(String endpoint, Map<String, String> params)
throws IOException {
URL url;
try {
url = new URL(endpoint);
} catch (MalformedURLException e) {
throw new IllegalArgumentException("invalid url: " + endpoint);
}
StringBuilder bodyBuilder = new StringBuilder();
Iterator<Entry<String, String>> iterator = params.entrySet().iterator();
// constructs the POST body using the parameters
while (iterator.hasNext()) {
Entry<String, String> param = iterator.next();
bodyBuilder.append(param.getKey()).append('=')
.append(param.getValue());
if (iterator.hasNext()) {
bodyBuilder.append('&');
}
}
String body = bodyBuilder.toString();
Log.v(TAG, "Posting '" + body + "' to " + url);
byte[] bytes = body.getBytes();
HttpURLConnection conn = null;
try {
conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setFixedLengthStreamingMode(bytes.length);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
// post the request
OutputStream out = conn.getOutputStream();
out.write(bytes);
out.close();
// handle the response
int status = conn.getResponseCode();
if (status != 200) {
throw new IOException("Post failed with error code " + status);
}
} finally {
if (conn != null) {
conn.disconnect();
}
}
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.demo.app;
import static com.google.android.gcm.demo.app.CommonUtilities.DISPLAY_MESSAGE_ACTION;
import static com.google.android.gcm.demo.app.CommonUtilities.EXTRA_MESSAGE;
import static com.google.android.gcm.demo.app.CommonUtilities.SENDER_ID;
import static com.google.android.gcm.demo.app.CommonUtilities.SERVER_URL;
import com.google.android.gcm.GCMRegistrar;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.TextView;
/**
* Main UI for the demo app.
*/
public class DemoActivity extends Activity {
TextView mDisplay;
AsyncTask<Void, Void, Void> mRegisterTask;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
checkNotNull(SERVER_URL, "SERVER_URL");
checkNotNull(SENDER_ID, "SENDER_ID");
// Make sure the device has the proper dependencies.
GCMRegistrar.checkDevice(this);
// Make sure the manifest was properly set - comment out this line
// while developing the app, then uncomment it when it's ready.
GCMRegistrar.checkManifest(this);
setContentView(R.layout.main);
mDisplay = (TextView) findViewById(R.id.display);
registerReceiver(mHandleMessageReceiver,
new IntentFilter(DISPLAY_MESSAGE_ACTION));
final String regId = GCMRegistrar.getRegistrationId(this);
if (regId.equals("")) {
// Automatically registers application on startup.
GCMRegistrar.register(this, SENDER_ID);
} else {
// Device is already registered on GCM, check server.
if (GCMRegistrar.isRegisteredOnServer(this)) {
// Skips registration.
mDisplay.append(getString(R.string.already_registered) + "\n");
} else {
// Try to register again, but not in the UI thread.
// It's also necessary to cancel the thread onDestroy(),
// hence the use of AsyncTask instead of a raw thread.
final Context context = this;
mRegisterTask = new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
ServerUtilities.register(context, regId);
return null;
}
@Override
protected void onPostExecute(Void result) {
mRegisterTask = null;
}
};
mRegisterTask.execute(null, null, null);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.options_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
/*
* Typically, an application registers automatically, so options
* below are disabled. Uncomment them if you want to manually
* register or unregister the device (you will also need to
* uncomment the equivalent options on options_menu.xml).
*/
/*
case R.id.options_register:
GCMRegistrar.register(this, SENDER_ID);
return true;
case R.id.options_unregister:
GCMRegistrar.unregister(this);
return true;
*/
case R.id.options_clear:
mDisplay.setText(null);
return true;
case R.id.options_exit:
finish();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
protected void onDestroy() {
if (mRegisterTask != null) {
mRegisterTask.cancel(true);
}
unregisterReceiver(mHandleMessageReceiver);
GCMRegistrar.onDestroy(this);
super.onDestroy();
}
private void checkNotNull(Object reference, String name) {
if (reference == null) {
throw new NullPointerException(
getString(R.string.error_config, name));
}
}
private final BroadcastReceiver mHandleMessageReceiver =
new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String newMessage = intent.getExtras().getString(EXTRA_MESSAGE);
mDisplay.append(newMessage + "\n");
}
};
} | Java |
/** Automatically generated file. DO NOT MODIFY */
package com.google.android.gcm;
public final class BuildConfig {
public final static boolean DEBUG = true;
} | Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm;
/**
* Constants used by the GCM library.
*
* @deprecated GCM library has been moved to Google Play Services
* (com.google.android.gms.gcm), and this version is no longer supported.
*/
@Deprecated
public final class GCMConstants {
/**
* Intent sent to GCM to register the application.
*/
public static final String INTENT_TO_GCM_REGISTRATION =
"com.google.android.c2dm.intent.REGISTER";
/**
* Intent sent to GCM to unregister the application.
*/
public static final String INTENT_TO_GCM_UNREGISTRATION =
"com.google.android.c2dm.intent.UNREGISTER";
/**
* Intent sent by GCM indicating with the result of a registration request.
*/
public static final String INTENT_FROM_GCM_REGISTRATION_CALLBACK =
"com.google.android.c2dm.intent.REGISTRATION";
/**
* Intent used by the GCM library to indicate that the registration call
* should be retried.
*/
public static final String INTENT_FROM_GCM_LIBRARY_RETRY =
"com.google.android.gcm.intent.RETRY";
/**
* Intent sent by GCM containing a message.
*/
public static final String INTENT_FROM_GCM_MESSAGE =
"com.google.android.c2dm.intent.RECEIVE";
/**
* Extra used on
* {@value com.google.android.gcm.GCMConstants#INTENT_TO_GCM_REGISTRATION}
* to indicate which senders (Google API project ids) can send messages to
* the application.
*/
public static final String EXTRA_SENDER = "sender";
/**
* Extra used on
* {@value com.google.android.gcm.GCMConstants#INTENT_TO_GCM_REGISTRATION}
* to get the application info.
*/
public static final String EXTRA_APPLICATION_PENDING_INTENT = "app";
/**
* Extra used on
* {@value com.google.android.gcm.GCMConstants#INTENT_FROM_GCM_REGISTRATION_CALLBACK}
* to indicate that the application has been unregistered.
*/
public static final String EXTRA_UNREGISTERED = "unregistered";
/**
* Extra used on
* {@value com.google.android.gcm.GCMConstants#INTENT_FROM_GCM_REGISTRATION_CALLBACK}
* to indicate an error when the registration fails.
* See constants starting with ERROR_ for possible values.
*/
public static final String EXTRA_ERROR = "error";
/**
* Extra used on
* {@value com.google.android.gcm.GCMConstants#INTENT_FROM_GCM_REGISTRATION_CALLBACK}
* to indicate the registration id when the registration succeeds.
*/
public static final String EXTRA_REGISTRATION_ID = "registration_id";
/**
* Type of message present in the
* {@value com.google.android.gcm.GCMConstants#INTENT_FROM_GCM_MESSAGE}
* intent.
* This extra is only set for special messages sent from GCM, not for
* messages originated from the application.
*/
public static final String EXTRA_SPECIAL_MESSAGE = "message_type";
/**
* Special message indicating the server deleted the pending messages.
*/
public static final String VALUE_DELETED_MESSAGES = "deleted_messages";
/**
* Number of messages deleted by the server because the device was idle.
* Present only on messages of special type
* {@value com.google.android.gcm.GCMConstants#VALUE_DELETED_MESSAGES}
*/
public static final String EXTRA_TOTAL_DELETED = "total_deleted";
/**
* Extra used on
* {@value com.google.android.gcm.GCMConstants#INTENT_FROM_GCM_MESSAGE}
* to indicate which sender (Google API project id) sent the message.
*/
public static final String EXTRA_FROM = "from";
/**
* Permission necessary to receive GCM intents.
*/
public static final String PERMISSION_GCM_INTENTS =
"com.google.android.c2dm.permission.SEND";
/**
* @see GCMBroadcastReceiver
*/
public static final String DEFAULT_INTENT_SERVICE_CLASS_NAME =
".GCMIntentService";
/**
* The device can't read the response, or there was a 500/503 from the
* server that can be retried later. The application should use exponential
* back off and retry.
*/
public static final String ERROR_SERVICE_NOT_AVAILABLE =
"SERVICE_NOT_AVAILABLE";
/**
* There is no Google account on the phone. The application should ask the
* user to open the account manager and add a Google account.
*/
public static final String ERROR_ACCOUNT_MISSING =
"ACCOUNT_MISSING";
/**
* Bad password. The application should ask the user to enter his/her
* password, and let user retry manually later. Fix on the device side.
*/
public static final String ERROR_AUTHENTICATION_FAILED =
"AUTHENTICATION_FAILED";
/**
* The request sent by the phone does not contain the expected parameters.
* This phone doesn't currently support GCM.
*/
public static final String ERROR_INVALID_PARAMETERS =
"INVALID_PARAMETERS";
/**
* The sender account is not recognized. Fix on the device side.
*/
public static final String ERROR_INVALID_SENDER =
"INVALID_SENDER";
/**
* Incorrect phone registration with Google. This phone doesn't currently
* support GCM.
*/
public static final String ERROR_PHONE_REGISTRATION_ERROR =
"PHONE_REGISTRATION_ERROR";
private GCMConstants() {
throw new UnsupportedOperationException();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm;
import android.util.Log;
/**
* Custom logger.
*
* @deprecated GCM library has been moved to Google Play Services
* (com.google.android.gms.gcm), and this version is no longer supported.
*/
@Deprecated
class GCMLogger {
private final String mTag;
// can't use class name on TAG since size is limited to 23 chars
private final String mLogPrefix;
GCMLogger(String tag, String logPrefix) {
mTag = tag;
mLogPrefix = logPrefix;
}
/**
* Logs a message on logcat.
*
* @param priority logging priority
* @param template message's template
* @param args list of arguments
*/
protected void log(int priority, String template, Object... args) {
if (Log.isLoggable(mTag, priority)) {
String message = String.format(template, args);
Log.println(priority, mTag, mLogPrefix + message);
}
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm;
import static com.google.android.gcm.GCMConstants.ERROR_SERVICE_NOT_AVAILABLE;
import static com.google.android.gcm.GCMConstants.EXTRA_ERROR;
import static com.google.android.gcm.GCMConstants.EXTRA_REGISTRATION_ID;
import static com.google.android.gcm.GCMConstants.EXTRA_SPECIAL_MESSAGE;
import static com.google.android.gcm.GCMConstants.EXTRA_TOTAL_DELETED;
import static com.google.android.gcm.GCMConstants.EXTRA_UNREGISTERED;
import static com.google.android.gcm.GCMConstants.INTENT_FROM_GCM_LIBRARY_RETRY;
import static com.google.android.gcm.GCMConstants.INTENT_FROM_GCM_MESSAGE;
import static com.google.android.gcm.GCMConstants.INTENT_FROM_GCM_REGISTRATION_CALLBACK;
import static com.google.android.gcm.GCMConstants.VALUE_DELETED_MESSAGES;
import android.app.AlarmManager;
import android.app.IntentService;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.PowerManager;
import android.os.SystemClock;
import android.util.Log;
import java.util.Random;
import java.util.concurrent.TimeUnit;
/**
* Skeleton for application-specific {@link IntentService}s responsible for
* handling communication from Google Cloud Messaging service.
* <p>
* The abstract methods in this class are called from its worker thread, and
* hence should run in a limited amount of time. If they execute long
* operations, they should spawn new threads, otherwise the worker thread will
* be blocked.
* <p>
* Subclasses must provide a public no-arg constructor.
*
* @deprecated GCM library has been moved to Google Play Services
* (com.google.android.gms.gcm), and this version is no longer supported.
*/
@Deprecated
public abstract class GCMBaseIntentService extends IntentService {
/**
* Old TAG used for logging. Marked as deprecated since it should have
* been private at first place.
*/
@Deprecated
public static final String TAG = "GCMBaseIntentService";
private final GCMLogger mLogger = new GCMLogger("GCMBaseIntentService",
"[" + getClass().getName() + "]: ");
// wakelock
private static final String WAKELOCK_KEY = "GCM_LIB";
private static PowerManager.WakeLock sWakeLock;
// Java lock used to synchronize access to sWakelock
private static final Object LOCK = GCMBaseIntentService.class;
private final String[] mSenderIds;
// instance counter
private static int sCounter = 0;
private static final Random sRandom = new Random();
private static final int MAX_BACKOFF_MS =
(int) TimeUnit.SECONDS.toMillis(3600); // 1 hour
/**
* Constructor that does not set a sender id, useful when the sender id
* is context-specific.
* <p>
* When using this constructor, the subclass <strong>must</strong>
* override {@link #getSenderIds(Context)}, otherwise methods such as
* {@link #onHandleIntent(Intent)} will throw an
* {@link IllegalStateException} on runtime.
*/
protected GCMBaseIntentService() {
this(getName("DynamicSenderIds"), null);
}
/**
* Constructor used when the sender id(s) is fixed.
*/
protected GCMBaseIntentService(String... senderIds) {
this(getName(senderIds), senderIds);
}
private GCMBaseIntentService(String name, String[] senderIds) {
super(name); // name is used as base name for threads, etc.
mSenderIds = senderIds;
mLogger.log(Log.VERBOSE, "Intent service name: %s", name);
}
private static String getName(String senderId) {
String name = "GCMIntentService-" + senderId + "-" + (++sCounter);
return name;
}
private static String getName(String[] senderIds) {
String flatSenderIds = GCMRegistrar.getFlatSenderIds(senderIds);
return getName(flatSenderIds);
}
/**
* Gets the sender ids.
*
* <p>By default, it returns the sender ids passed in the constructor, but
* it could be overridden to provide a dynamic sender id.
*
* @throws IllegalStateException if sender id was not set on constructor.
*/
protected String[] getSenderIds(Context context) {
if (mSenderIds == null) {
throw new IllegalStateException("sender id not set on constructor");
}
return mSenderIds;
}
/**
* Called when a cloud message has been received.
*
* @param context application's context.
* @param intent intent containing the message payload as extras.
*/
protected abstract void onMessage(Context context, Intent intent);
/**
* Called when the GCM server tells pending messages have been deleted
* because the device was idle.
*
* @param context application's context.
* @param total total number of collapsed messages
*/
protected void onDeletedMessages(Context context, int total) {
}
/**
* Called on a registration error that could be retried.
*
* <p>By default, it does nothing and returns {@literal true}, but could be
* overridden to change that behavior and/or display the error.
*
* @param context application's context.
* @param errorId error id returned by the GCM service.
*
* @return if {@literal true}, failed operation will be retried (using
* exponential backoff).
*/
protected boolean onRecoverableError(Context context, String errorId) {
return true;
}
/**
* Called on registration or unregistration error.
*
* @param context application's context.
* @param errorId error id returned by the GCM service.
*/
protected abstract void onError(Context context, String errorId);
/**
* Called after a device has been registered.
*
* @param context application's context.
* @param registrationId the registration id returned by the GCM service.
*/
protected abstract void onRegistered(Context context,
String registrationId);
/**
* Called after a device has been unregistered.
*
* @param registrationId the registration id that was previously registered.
* @param context application's context.
*/
protected abstract void onUnregistered(Context context,
String registrationId);
@Override
public final void onHandleIntent(Intent intent) {
try {
Context context = getApplicationContext();
String action = intent.getAction();
if (action.equals(INTENT_FROM_GCM_REGISTRATION_CALLBACK)) {
GCMRegistrar.setRetryBroadcastReceiver(context);
handleRegistration(context, intent);
} else if (action.equals(INTENT_FROM_GCM_MESSAGE)) {
// checks for special messages
String messageType =
intent.getStringExtra(EXTRA_SPECIAL_MESSAGE);
if (messageType != null) {
if (messageType.equals(VALUE_DELETED_MESSAGES)) {
String sTotal =
intent.getStringExtra(EXTRA_TOTAL_DELETED);
if (sTotal != null) {
try {
int total = Integer.parseInt(sTotal);
mLogger.log(Log.VERBOSE,
"Received notification for %d deleted"
+ "messages", total);
onDeletedMessages(context, total);
} catch (NumberFormatException e) {
mLogger.log(Log.ERROR, "GCM returned invalid "
+ "number of deleted messages (%d)",
sTotal);
}
}
} else {
// application is not using the latest GCM library
mLogger.log(Log.ERROR,
"Received unknown special message: %s",
messageType);
}
} else {
onMessage(context, intent);
}
} else if (action.equals(INTENT_FROM_GCM_LIBRARY_RETRY)) {
String packageOnIntent = intent.getPackage();
if (packageOnIntent == null || !packageOnIntent.equals(
getApplicationContext().getPackageName())) {
mLogger.log(Log.ERROR,
"Ignoring retry intent from another package (%s)",
packageOnIntent);
return;
}
// retry last call
if (GCMRegistrar.isRegistered(context)) {
GCMRegistrar.internalUnregister(context);
} else {
String[] senderIds = getSenderIds(context);
GCMRegistrar.internalRegister(context, senderIds);
}
}
} finally {
// Release the power lock, so phone can get back to sleep.
// The lock is reference-counted by default, so multiple
// messages are ok.
// If onMessage() needs to spawn a thread or do something else,
// it should use its own lock.
synchronized (LOCK) {
// sanity check for null as this is a public method
if (sWakeLock != null) {
sWakeLock.release();
} else {
// should never happen during normal workflow
mLogger.log(Log.ERROR, "Wakelock reference is null");
}
}
}
}
/**
* Called from the broadcast receiver.
* <p>
* Will process the received intent, call handleMessage(), registered(),
* etc. in background threads, with a wake lock, while keeping the service
* alive.
*/
static void runIntentInService(Context context, Intent intent,
String className) {
synchronized (LOCK) {
if (sWakeLock == null) {
// This is called from BroadcastReceiver, there is no init.
PowerManager pm = (PowerManager)
context.getSystemService(Context.POWER_SERVICE);
sWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
WAKELOCK_KEY);
}
}
sWakeLock.acquire();
intent.setClassName(context, className);
context.startService(intent);
}
private void handleRegistration(final Context context, Intent intent) {
GCMRegistrar.cancelAppPendingIntent();
String registrationId = intent.getStringExtra(EXTRA_REGISTRATION_ID);
String error = intent.getStringExtra(EXTRA_ERROR);
String unregistered = intent.getStringExtra(EXTRA_UNREGISTERED);
mLogger.log(Log.DEBUG, "handleRegistration: registrationId = %s, "
+ "error = %s, unregistered = %s",
registrationId, error, unregistered);
// registration succeeded
if (registrationId != null) {
GCMRegistrar.resetBackoff(context);
GCMRegistrar.setRegistrationId(context, registrationId);
onRegistered(context, registrationId);
return;
}
// unregistration succeeded
if (unregistered != null) {
// Remember we are unregistered
GCMRegistrar.resetBackoff(context);
String oldRegistrationId =
GCMRegistrar.clearRegistrationId(context);
onUnregistered(context, oldRegistrationId);
return;
}
// last operation (registration or unregistration) returned an error;
// Registration failed
if (ERROR_SERVICE_NOT_AVAILABLE.equals(error)) {
boolean retry = onRecoverableError(context, error);
if (retry) {
int backoffTimeMs = GCMRegistrar.getBackoff(context);
int nextAttempt = backoffTimeMs / 2 +
sRandom.nextInt(backoffTimeMs);
mLogger.log(Log.DEBUG,
"Scheduling registration retry, backoff = %d (%d)",
nextAttempt, backoffTimeMs);
Intent retryIntent =
new Intent(INTENT_FROM_GCM_LIBRARY_RETRY);
retryIntent.setPackage(context.getPackageName());
PendingIntent retryPendingIntent = PendingIntent
.getBroadcast(context, 0, retryIntent, 0);
AlarmManager am = (AlarmManager)
context.getSystemService(Context.ALARM_SERVICE);
am.set(AlarmManager.ELAPSED_REALTIME,
SystemClock.elapsedRealtime() + nextAttempt,
retryPendingIntent);
// Next retry should wait longer.
if (backoffTimeMs < MAX_BACKOFF_MS) {
GCMRegistrar.setBackoff(context, backoffTimeMs * 2);
}
} else {
mLogger.log(Log.VERBOSE, "Not retrying failed operation");
}
} else {
// Unrecoverable error, notify app
onError(context, error);
}
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm;
import static com.google.android.gcm.GCMConstants.DEFAULT_INTENT_SERVICE_CLASS_NAME;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
/**
* {@link BroadcastReceiver} that receives GCM messages and delivers them to
* an application-specific {@link GCMBaseIntentService} subclass.
* <p>
* By default, the {@link GCMBaseIntentService} class belongs to the application
* main package and is named
* {@link GCMConstants#DEFAULT_INTENT_SERVICE_CLASS_NAME}. To use a new class,
* the {@link #getGCMIntentServiceClassName(Context)} must be overridden.
*
* @deprecated GCM library has been moved to Google Play Services
* (com.google.android.gms.gcm), and this version is no longer supported.
*/
@Deprecated
public class GCMBroadcastReceiver extends BroadcastReceiver {
private static boolean mReceiverSet = false;
private final GCMLogger mLogger = new GCMLogger("GCMBroadcastReceiver",
"[" + getClass().getName() + "]: ");
@Override
public final void onReceive(Context context, Intent intent) {
mLogger.log(Log.VERBOSE, "onReceive: %s", intent.getAction());
// do a one-time check if app is using a custom GCMBroadcastReceiver
if (!mReceiverSet) {
mReceiverSet = true;
GCMRegistrar.setRetryReceiverClassName(context,
getClass().getName());
}
String className = getGCMIntentServiceClassName(context);
mLogger.log(Log.VERBOSE, "GCM IntentService class: %s", className);
// Delegates to the application-specific intent service.
GCMBaseIntentService.runIntentInService(context, intent, className);
setResult(Activity.RESULT_OK, null /* data */, null /* extra */);
}
/**
* Gets the class name of the intent service that will handle GCM messages.
*/
protected String getGCMIntentServiceClassName(Context context) {
return getDefaultIntentServiceClassName(context);
}
/**
* Gets the default class name of the intent service that will handle GCM
* messages.
*/
static final String getDefaultIntentServiceClassName(Context context) {
String className = context.getPackageName() +
DEFAULT_INTENT_SERVICE_CLASS_NAME;
return className;
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.os.Build;
import android.util.Log;
import java.sql.Timestamp;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* Utilities for device registration.
* <p>
* <strong>Note:</strong> this class uses a private {@link SharedPreferences}
* object to keep track of the registration token.
*
* @deprecated GCM library has been moved to Google Play Services
* (com.google.android.gms.gcm), and this version is no longer supported.
*/
@Deprecated
public final class GCMRegistrar {
/**
* Default lifespan (7 days) of the {@link #isRegisteredOnServer(Context)}
* flag until it is considered expired.
*/
// NOTE: cannot use TimeUnit.DAYS because it's not available on API Level 8
public static final long DEFAULT_ON_SERVER_LIFESPAN_MS =
1000 * 3600 * 24 * 7;
private static final String TAG = "GCMRegistrar";
private static final String BACKOFF_MS = "backoff_ms";
private static final String GSF_PACKAGE = "com.google.android.gsf";
private static final String PREFERENCES = "com.google.android.gcm";
private static final int DEFAULT_BACKOFF_MS = 3000;
private static final String PROPERTY_REG_ID = "regId";
private static final String PROPERTY_APP_VERSION = "appVersion";
private static final String PROPERTY_ON_SERVER = "onServer";
private static final String PROPERTY_ON_SERVER_EXPIRATION_TIME =
"onServerExpirationTime";
private static final String PROPERTY_ON_SERVER_LIFESPAN =
"onServerLifeSpan";
/**
* {@link GCMBroadcastReceiver} instance used to handle the retry intent.
*
* <p>
* This instance cannot be the same as the one defined in the manifest
* because it needs a different permission.
*/
// guarded by GCMRegistrar.class
private static GCMBroadcastReceiver sRetryReceiver;
// guarded by GCMRegistrar.class
private static Context sRetryReceiverContext;
// guarded by GCMRegistrar.class
private static String sRetryReceiverClassName;
// guarded by GCMRegistrar.class
private static PendingIntent sAppPendingIntent;
/**
* Checks if the device has the proper dependencies installed.
* <p>
* This method should be called when the application starts to verify that
* the device supports GCM.
*
* @param context application context.
* @throws UnsupportedOperationException if the device does not support GCM.
*/
public static void checkDevice(Context context) {
int version = Build.VERSION.SDK_INT;
if (version < 8) {
throw new UnsupportedOperationException("Device must be at least " +
"API Level 8 (instead of " + version + ")");
}
PackageManager packageManager = context.getPackageManager();
try {
packageManager.getPackageInfo(GSF_PACKAGE, 0);
} catch (NameNotFoundException e) {
throw new UnsupportedOperationException(
"Device does not have package " + GSF_PACKAGE);
}
}
/**
* Checks that the application manifest is properly configured.
* <p>
* A proper configuration means:
* <ol>
* <li>It creates a custom permission called
* {@code PACKAGE_NAME.permission.C2D_MESSAGE}.
* <li>It defines at least one {@link BroadcastReceiver} with category
* {@code PACKAGE_NAME}.
* <li>The {@link BroadcastReceiver}(s) uses the
* {@value com.google.android.gcm.GCMConstants#PERMISSION_GCM_INTENTS}
* permission.
* <li>The {@link BroadcastReceiver}(s) handles the 2 GCM intents
* ({@value com.google.android.gcm.GCMConstants#INTENT_FROM_GCM_MESSAGE}
* and
* {@value com.google.android.gcm.GCMConstants#INTENT_FROM_GCM_REGISTRATION_CALLBACK}).
* </ol>
* ...where {@code PACKAGE_NAME} is the application package.
* <p>
* This method should be used during development time to verify that the
* manifest is properly set up, but it doesn't need to be called once the
* application is deployed to the users' devices.
*
* @param context application context.
* @throws IllegalStateException if any of the conditions above is not met.
*/
public static void checkManifest(Context context) {
PackageManager packageManager = context.getPackageManager();
String packageName = context.getPackageName();
String permissionName = packageName + ".permission.C2D_MESSAGE";
// check permission
try {
packageManager.getPermissionInfo(permissionName,
PackageManager.GET_PERMISSIONS);
} catch (NameNotFoundException e) {
throw new IllegalStateException(
"Application does not define permission " + permissionName);
}
// check receivers
PackageInfo receiversInfo;
try {
receiversInfo = packageManager.getPackageInfo(
packageName, PackageManager.GET_RECEIVERS);
} catch (NameNotFoundException e) {
throw new IllegalStateException(
"Could not get receivers for package " + packageName);
}
ActivityInfo[] receivers = receiversInfo.receivers;
if (receivers == null || receivers.length == 0) {
throw new IllegalStateException("No receiver for package " +
packageName);
}
log(context, Log.VERBOSE, "number of receivers for %s: %d",
packageName, receivers.length);
Set<String> allowedReceivers = new HashSet<String>();
for (ActivityInfo receiver : receivers) {
if (GCMConstants.PERMISSION_GCM_INTENTS.equals(
receiver.permission)) {
allowedReceivers.add(receiver.name);
}
}
if (allowedReceivers.isEmpty()) {
throw new IllegalStateException("No receiver allowed to receive " +
GCMConstants.PERMISSION_GCM_INTENTS);
}
checkReceiver(context, allowedReceivers,
GCMConstants.INTENT_FROM_GCM_REGISTRATION_CALLBACK);
checkReceiver(context, allowedReceivers,
GCMConstants.INTENT_FROM_GCM_MESSAGE);
}
private static void checkReceiver(Context context,
Set<String> allowedReceivers, String action) {
PackageManager pm = context.getPackageManager();
String packageName = context.getPackageName();
Intent intent = new Intent(action);
intent.setPackage(packageName);
List<ResolveInfo> receivers = pm.queryBroadcastReceivers(intent,
PackageManager.GET_INTENT_FILTERS);
if (receivers.isEmpty()) {
throw new IllegalStateException("No receivers for action " +
action);
}
log(context, Log.VERBOSE, "Found %d receivers for action %s",
receivers.size(), action);
// make sure receivers match
for (ResolveInfo receiver : receivers) {
String name = receiver.activityInfo.name;
if (!allowedReceivers.contains(name)) {
throw new IllegalStateException("Receiver " + name +
" is not set with permission " +
GCMConstants.PERMISSION_GCM_INTENTS);
}
}
}
/**
* Initiate messaging registration for the current application.
* <p>
* The result will be returned as an
* {@link GCMConstants#INTENT_FROM_GCM_REGISTRATION_CALLBACK} intent with
* either a {@link GCMConstants#EXTRA_REGISTRATION_ID} or
* {@link GCMConstants#EXTRA_ERROR}.
*
* @param context application context.
* @param senderIds Google Project ID of the accounts authorized to send
* messages to this application.
* @throws IllegalStateException if device does not have all GCM
* dependencies installed.
*/
public static void register(Context context, String... senderIds) {
GCMRegistrar.resetBackoff(context);
internalRegister(context, senderIds);
}
static void internalRegister(Context context, String... senderIds) {
String flatSenderIds = getFlatSenderIds(senderIds);
log(context, Log.VERBOSE, "Registering app for senders %s",
flatSenderIds);
Intent intent = new Intent(GCMConstants.INTENT_TO_GCM_REGISTRATION);
intent.setPackage(GSF_PACKAGE);
setPackageNameExtra(context, intent);
intent.putExtra(GCMConstants.EXTRA_SENDER, flatSenderIds);
context.startService(intent);
}
/**
* Unregister the application.
* <p>
* The result will be returned as an
* {@link GCMConstants#INTENT_FROM_GCM_REGISTRATION_CALLBACK} intent with an
* {@link GCMConstants#EXTRA_UNREGISTERED} extra.
*/
public static void unregister(Context context) {
GCMRegistrar.resetBackoff(context);
internalUnregister(context);
}
static void internalUnregister(Context context) {
log(context, Log.VERBOSE, "Unregistering app");
Intent intent = new Intent(GCMConstants.INTENT_TO_GCM_UNREGISTRATION);
intent.setPackage(GSF_PACKAGE);
setPackageNameExtra(context, intent);
context.startService(intent);
}
static String getFlatSenderIds(String... senderIds) {
if (senderIds == null || senderIds.length == 0) {
throw new IllegalArgumentException("No senderIds");
}
StringBuilder builder = new StringBuilder(senderIds[0]);
for (int i = 1; i < senderIds.length; i++) {
builder.append(',').append(senderIds[i]);
}
return builder.toString();
}
/**
* Clear internal resources.
*
* <p>
* This method should be called by the main activity's {@code onDestroy()}
* method.
*/
public static synchronized void onDestroy(Context context) {
if (sRetryReceiver != null) {
log(context, Log.VERBOSE, "Unregistering retry receiver");
sRetryReceiverContext.unregisterReceiver(sRetryReceiver);
sRetryReceiver = null;
sRetryReceiverContext = null;
}
}
static synchronized void cancelAppPendingIntent() {
if (sAppPendingIntent != null) {
sAppPendingIntent.cancel();
sAppPendingIntent = null;
}
}
private synchronized static void setPackageNameExtra(Context context,
Intent intent) {
if (sAppPendingIntent == null) {
log(context, Log.VERBOSE,
"Creating pending intent to get package name");
sAppPendingIntent = PendingIntent.getBroadcast(context, 0,
new Intent(), 0);
}
intent.putExtra(GCMConstants.EXTRA_APPLICATION_PENDING_INTENT,
sAppPendingIntent);
}
/**
* Lazy initializes the {@link GCMBroadcastReceiver} instance.
*/
static synchronized void setRetryBroadcastReceiver(Context context) {
if (sRetryReceiver == null) {
if (sRetryReceiverClassName == null) {
// should never happen
log(context, Log.ERROR,
"internal error: retry receiver class not set yet");
sRetryReceiver = new GCMBroadcastReceiver();
} else {
Class<?> clazz;
try {
clazz = Class.forName(sRetryReceiverClassName);
sRetryReceiver = (GCMBroadcastReceiver) clazz.newInstance();
} catch (Exception e) {
log(context, Log.ERROR, "Could not create instance of %s. "
+ "Using %s directly.", sRetryReceiverClassName,
GCMBroadcastReceiver.class.getName());
sRetryReceiver = new GCMBroadcastReceiver();
}
}
String category = context.getPackageName();
IntentFilter filter = new IntentFilter(
GCMConstants.INTENT_FROM_GCM_LIBRARY_RETRY);
filter.addCategory(category);
log(context, Log.VERBOSE, "Registering retry receiver");
sRetryReceiverContext = context;
sRetryReceiverContext.registerReceiver(sRetryReceiver, filter);
}
}
/**
* Sets the name of the retry receiver class.
*/
static synchronized void setRetryReceiverClassName(Context context,
String className) {
log(context, Log.VERBOSE,
"Setting the name of retry receiver class to %s", className);
sRetryReceiverClassName = className;
}
/**
* Gets the current registration id for application on GCM service.
* <p>
* If result is empty, the registration has failed.
*
* @return registration id, or empty string if the registration is not
* complete.
*/
public static String getRegistrationId(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
String registrationId = prefs.getString(PROPERTY_REG_ID, "");
// check if app was updated; if so, it must clear registration id to
// avoid a race condition if GCM sends a message
int oldVersion = prefs.getInt(PROPERTY_APP_VERSION, Integer.MIN_VALUE);
int newVersion = getAppVersion(context);
if (oldVersion != Integer.MIN_VALUE && oldVersion != newVersion) {
log(context, Log.VERBOSE, "App version changed from %d to %d;"
+ "resetting registration id", oldVersion, newVersion);
clearRegistrationId(context);
registrationId = "";
}
return registrationId;
}
/**
* Checks whether the application was successfully registered on GCM
* service.
*/
public static boolean isRegistered(Context context) {
return getRegistrationId(context).length() > 0;
}
/**
* Clears the registration id in the persistence store.
*
* <p>As a side-effect, it also expires the registeredOnServer property.
*
* @param context application's context.
* @return old registration id.
*/
static String clearRegistrationId(Context context) {
setRegisteredOnServer(context, null, 0);
return setRegistrationId(context, "");
}
/**
* Sets the registration id in the persistence store.
*
* @param context application's context.
* @param regId registration id
*/
static String setRegistrationId(Context context, String regId) {
final SharedPreferences prefs = getGCMPreferences(context);
String oldRegistrationId = prefs.getString(PROPERTY_REG_ID, "");
int appVersion = getAppVersion(context);
log(context, Log.VERBOSE, "Saving regId on app version %d", appVersion);
Editor editor = prefs.edit();
editor.putString(PROPERTY_REG_ID, regId);
editor.putInt(PROPERTY_APP_VERSION, appVersion);
editor.commit();
return oldRegistrationId;
}
/**
* Sets whether the device was successfully registered in the server side.
*/
public static void setRegisteredOnServer(Context context, boolean flag) {
// set the flag's expiration date
long lifespan = getRegisterOnServerLifespan(context);
long expirationTime = System.currentTimeMillis() + lifespan;
setRegisteredOnServer(context, flag, expirationTime);
}
private static void setRegisteredOnServer(Context context, Boolean flag,
long expirationTime) {
final SharedPreferences prefs = getGCMPreferences(context);
Editor editor = prefs.edit();
if (flag != null) {
editor.putBoolean(PROPERTY_ON_SERVER, flag);
log(context, Log.VERBOSE,
"Setting registeredOnServer flag as %b until %s",
flag, new Timestamp(expirationTime));
} else {
log(context, Log.VERBOSE,
"Setting registeredOnServer expiration to %s",
new Timestamp(expirationTime));
}
editor.putLong(PROPERTY_ON_SERVER_EXPIRATION_TIME, expirationTime);
editor.commit();
}
/**
* Checks whether the device was successfully registered in the server side,
* as set by {@link #setRegisteredOnServer(Context, boolean)}.
*
* <p>To avoid the scenario where the device sends the registration to the
* server but the server loses it, this flag has an expiration date, which
* is {@link #DEFAULT_ON_SERVER_LIFESPAN_MS} by default (but can be changed
* by {@link #setRegisterOnServerLifespan(Context, long)}).
*/
public static boolean isRegisteredOnServer(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
boolean isRegistered = prefs.getBoolean(PROPERTY_ON_SERVER, false);
log(context, Log.VERBOSE, "Is registered on server: %b", isRegistered);
if (isRegistered) {
// checks if the information is not stale
long expirationTime =
prefs.getLong(PROPERTY_ON_SERVER_EXPIRATION_TIME, -1);
if (System.currentTimeMillis() > expirationTime) {
log(context, Log.VERBOSE, "flag expired on: %s",
new Timestamp(expirationTime));
return false;
}
}
return isRegistered;
}
/**
* Gets how long (in milliseconds) the {@link #isRegistered(Context)}
* property is valid.
*
* @return value set by {@link #setRegisteredOnServer(Context, boolean)} or
* {@link #DEFAULT_ON_SERVER_LIFESPAN_MS} if not set.
*/
public static long getRegisterOnServerLifespan(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
long lifespan = prefs.getLong(PROPERTY_ON_SERVER_LIFESPAN,
DEFAULT_ON_SERVER_LIFESPAN_MS);
return lifespan;
}
/**
* Sets how long (in milliseconds) the {@link #isRegistered(Context)}
* flag is valid.
*/
public static void setRegisterOnServerLifespan(Context context,
long lifespan) {
final SharedPreferences prefs = getGCMPreferences(context);
Editor editor = prefs.edit();
editor.putLong(PROPERTY_ON_SERVER_LIFESPAN, lifespan);
editor.commit();
}
/**
* Gets the application version.
*/
private static int getAppVersion(Context context) {
try {
PackageInfo packageInfo = context.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
return packageInfo.versionCode;
} catch (NameNotFoundException e) {
// should never happen
throw new RuntimeException("Coult not get package name: " + e);
}
}
/**
* Resets the backoff counter.
* <p>
* This method should be called after a GCM call succeeds.
*
* @param context application's context.
*/
static void resetBackoff(Context context) {
log(context, Log.VERBOSE, "Resetting backoff");
setBackoff(context, DEFAULT_BACKOFF_MS);
}
/**
* Gets the current backoff counter.
*
* @param context application's context.
* @return current backoff counter, in milliseconds.
*/
static int getBackoff(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
return prefs.getInt(BACKOFF_MS, DEFAULT_BACKOFF_MS);
}
/**
* Sets the backoff counter.
* <p>
* This method should be called after a GCM call fails, passing an
* exponential value.
*
* @param context application's context.
* @param backoff new backoff counter, in milliseconds.
*/
static void setBackoff(Context context, int backoff) {
final SharedPreferences prefs = getGCMPreferences(context);
Editor editor = prefs.edit();
editor.putInt(BACKOFF_MS, backoff);
editor.commit();
}
private static SharedPreferences getGCMPreferences(Context context) {
return context.getSharedPreferences(PREFERENCES, Context.MODE_PRIVATE);
}
/**
* Logs a message on logcat.
*
* @param context application's context.
* @param priority logging priority
* @param template message's template
* @param args list of arguments
*/
private static void log(Context context, int priority, String template,
Object... args) {
if (Log.isLoggable(TAG, priority)) {
String message = String.format(template, args);
Log.println(priority, TAG, "[" + context.getPackageName() + "]: "
+ message);
}
}
private GCMRegistrar() {
throw new UnsupportedOperationException();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import java.io.Serializable;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* GCM message.
*
* <p>
* Instances of this class are immutable and should be created using a
* {@link Builder}. Examples:
*
* <strong>Simplest message:</strong>
* <pre><code>
* Message message = new Message.Builder().build();
* </pre></code>
*
* <strong>Message with optional attributes:</strong>
* <pre><code>
* Message message = new Message.Builder()
* .collapseKey(collapseKey)
* .timeToLive(3)
* .delayWhileIdle(true)
* .dryRun(true)
* .restrictedPackageName(restrictedPackageName)
* .build();
* </pre></code>
*
* <strong>Message with optional attributes and payload data:</strong>
* <pre><code>
* Message message = new Message.Builder()
* .collapseKey(collapseKey)
* .timeToLive(3)
* .delayWhileIdle(true)
* .dryRun(true)
* .restrictedPackageName(restrictedPackageName)
* .addData("key1", "value1")
* .addData("key2", "value2")
* .build();
* </pre></code>
*/
public final class Message implements Serializable {
private final String collapseKey;
private final Boolean delayWhileIdle;
private final Integer timeToLive;
private final Map<String, String> data;
private final Boolean dryRun;
private final String restrictedPackageName;
public static final class Builder {
private final Map<String, String> data;
// optional parameters
private String collapseKey;
private Boolean delayWhileIdle;
private Integer timeToLive;
private Boolean dryRun;
private String restrictedPackageName;
public Builder() {
this.data = new LinkedHashMap<String, String>();
}
/**
* Sets the collapseKey property.
*/
public Builder collapseKey(String value) {
collapseKey = value;
return this;
}
/**
* Sets the delayWhileIdle property (default value is {@literal false}).
*/
public Builder delayWhileIdle(boolean value) {
delayWhileIdle = value;
return this;
}
/**
* Sets the time to live, in seconds.
*/
public Builder timeToLive(int value) {
timeToLive = value;
return this;
}
/**
* Adds a key/value pair to the payload data.
*/
public Builder addData(String key, String value) {
data.put(key, value);
return this;
}
/**
* Sets the dryRun property (default value is {@literal false}).
*/
public Builder dryRun(boolean value) {
dryRun = value;
return this;
}
/**
* Sets the restrictedPackageName property.
*/
public Builder restrictedPackageName(String value) {
restrictedPackageName = value;
return this;
}
public Message build() {
return new Message(this);
}
}
private Message(Builder builder) {
collapseKey = builder.collapseKey;
delayWhileIdle = builder.delayWhileIdle;
data = Collections.unmodifiableMap(builder.data);
timeToLive = builder.timeToLive;
dryRun = builder.dryRun;
restrictedPackageName = builder.restrictedPackageName;
}
/**
* Gets the collapse key.
*/
public String getCollapseKey() {
return collapseKey;
}
/**
* Gets the delayWhileIdle flag.
*/
public Boolean isDelayWhileIdle() {
return delayWhileIdle;
}
/**
* Gets the time to live (in seconds).
*/
public Integer getTimeToLive() {
return timeToLive;
}
/**
* Gets the dryRun flag.
*/
public Boolean isDryRun() {
return dryRun;
}
/**
* Gets the restricted package name.
*/
public String getRestrictedPackageName() {
return restrictedPackageName;
}
/**
* Gets the payload data, which is immutable.
*/
public Map<String, String> getData() {
return data;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder("Message(");
if (collapseKey != null) {
builder.append("collapseKey=").append(collapseKey).append(", ");
}
if (timeToLive != null) {
builder.append("timeToLive=").append(timeToLive).append(", ");
}
if (delayWhileIdle != null) {
builder.append("delayWhileIdle=").append(delayWhileIdle).append(", ");
}
if (dryRun != null) {
builder.append("dryRun=").append(dryRun).append(", ");
}
if (restrictedPackageName != null) {
builder.append("restrictedPackageName=").append(restrictedPackageName).append(", ");
}
if (!data.isEmpty()) {
builder.append("data: {");
for (Map.Entry<String, String> entry : data.entrySet()) {
builder.append(entry.getKey()).append("=").append(entry.getValue())
.append(",");
}
builder.delete(builder.length() - 1, builder.length());
builder.append("}");
}
if (builder.charAt(builder.length() - 1) == ' ') {
builder.delete(builder.length() - 2, builder.length());
}
builder.append(")");
return builder.toString();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import java.io.IOException;
/**
* Exception thrown when GCM returned an error due to an invalid request.
* <p>
* This is equivalent to GCM posts that return an HTTP error different of 200.
*/
public final class InvalidRequestException extends IOException {
private final int status;
private final String description;
public InvalidRequestException(int status) {
this(status, null);
}
public InvalidRequestException(int status, String description) {
super(getMessage(status, description));
this.status = status;
this.description = description;
}
private static String getMessage(int status, String description) {
StringBuilder base = new StringBuilder("HTTP Status Code: ").append(status);
if (description != null) {
base.append("(").append(description).append(")");
}
return base.toString();
}
/**
* Gets the HTTP Status Code.
*/
public int getHttpStatusCode() {
return status;
}
/**
* Gets the error description.
*/
public String getDescription() {
return description;
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import static com.google.android.gcm.server.Constants.GCM_SEND_ENDPOINT;
import static com.google.android.gcm.server.Constants.JSON_CANONICAL_IDS;
import static com.google.android.gcm.server.Constants.JSON_ERROR;
import static com.google.android.gcm.server.Constants.JSON_FAILURE;
import static com.google.android.gcm.server.Constants.JSON_MESSAGE_ID;
import static com.google.android.gcm.server.Constants.JSON_MULTICAST_ID;
import static com.google.android.gcm.server.Constants.JSON_PAYLOAD;
import static com.google.android.gcm.server.Constants.JSON_REGISTRATION_IDS;
import static com.google.android.gcm.server.Constants.JSON_RESULTS;
import static com.google.android.gcm.server.Constants.JSON_SUCCESS;
import static com.google.android.gcm.server.Constants.PARAM_COLLAPSE_KEY;
import static com.google.android.gcm.server.Constants.PARAM_DELAY_WHILE_IDLE;
import static com.google.android.gcm.server.Constants.PARAM_DRY_RUN;
import static com.google.android.gcm.server.Constants.PARAM_PAYLOAD_PREFIX;
import static com.google.android.gcm.server.Constants.PARAM_REGISTRATION_ID;
import static com.google.android.gcm.server.Constants.PARAM_RESTRICTED_PACKAGE_NAME;
import static com.google.android.gcm.server.Constants.PARAM_TIME_TO_LIVE;
import static com.google.android.gcm.server.Constants.TOKEN_CANONICAL_REG_ID;
import static com.google.android.gcm.server.Constants.TOKEN_ERROR;
import static com.google.android.gcm.server.Constants.TOKEN_MESSAGE_ID;
import com.google.android.gcm.server.Result.Builder;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Random;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Helper class to send messages to the GCM service using an API Key.
*/
public class Sender {
protected static final String UTF8 = "UTF-8";
/**
* Initial delay before first retry, without jitter.
*/
protected static final int BACKOFF_INITIAL_DELAY = 1000;
/**
* Maximum delay before a retry.
*/
protected static final int MAX_BACKOFF_DELAY = 1024000;
protected final Random random = new Random();
protected static final Logger logger =
Logger.getLogger(Sender.class.getName());
private final String key;
/**
* Default constructor.
*
* @param key API key obtained through the Google API Console.
*/
public Sender(String key) {
this.key = nonNull(key);
}
/**
* Sends a message to one device, retrying in case of unavailability.
*
* <p>
* <strong>Note: </strong> this method uses exponential back-off to retry in
* case of service unavailability and hence could block the calling thread
* for many seconds.
*
* @param message message to be sent, including the device's registration id.
* @param registrationId device where the message will be sent.
* @param retries number of retries in case of service unavailability errors.
*
* @return result of the request (see its javadoc for more details).
*
* @throws IllegalArgumentException if registrationId is {@literal null}.
* @throws InvalidRequestException if GCM didn't returned a 200 or 5xx status.
* @throws IOException if message could not be sent.
*/
public Result send(Message message, String registrationId, int retries)
throws IOException {
int attempt = 0;
Result result = null;
int backoff = BACKOFF_INITIAL_DELAY;
boolean tryAgain;
do {
attempt++;
if (logger.isLoggable(Level.FINE)) {
logger.fine("Attempt #" + attempt + " to send message " +
message + " to regIds " + registrationId);
}
result = sendNoRetry(message, registrationId);
tryAgain = result == null && attempt <= retries;
if (tryAgain) {
int sleepTime = backoff / 2 + random.nextInt(backoff);
sleep(sleepTime);
if (2 * backoff < MAX_BACKOFF_DELAY) {
backoff *= 2;
}
}
} while (tryAgain);
if (result == null) {
throw new IOException("Could not send message after " + attempt +
" attempts");
}
return result;
}
/**
* Sends a message without retrying in case of service unavailability. See
* {@link #send(Message, String, int)} for more info.
*
* @return result of the post, or {@literal null} if the GCM service was
* unavailable or any network exception caused the request to fail.
*
* @throws InvalidRequestException if GCM didn't returned a 200 or 5xx status.
* @throws IllegalArgumentException if registrationId is {@literal null}.
*/
public Result sendNoRetry(Message message, String registrationId)
throws IOException {
StringBuilder body = newBody(PARAM_REGISTRATION_ID, registrationId);
Boolean delayWhileIdle = message.isDelayWhileIdle();
if (delayWhileIdle != null) {
addParameter(body, PARAM_DELAY_WHILE_IDLE, delayWhileIdle ? "1" : "0");
}
Boolean dryRun = message.isDryRun();
if (dryRun != null) {
addParameter(body, PARAM_DRY_RUN, dryRun ? "1" : "0");
}
String collapseKey = message.getCollapseKey();
if (collapseKey != null) {
addParameter(body, PARAM_COLLAPSE_KEY, collapseKey);
}
String restrictedPackageName = message.getRestrictedPackageName();
if (restrictedPackageName != null) {
addParameter(body, PARAM_RESTRICTED_PACKAGE_NAME, restrictedPackageName);
}
Integer timeToLive = message.getTimeToLive();
if (timeToLive != null) {
addParameter(body, PARAM_TIME_TO_LIVE, Integer.toString(timeToLive));
}
for (Entry<String, String> entry : message.getData().entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
if (key == null || value == null) {
logger.warning("Ignoring payload entry thas has null: " + entry);
} else {
key = PARAM_PAYLOAD_PREFIX + key;
addParameter(body, key, URLEncoder.encode(value, UTF8));
}
}
String requestBody = body.toString();
logger.finest("Request body: " + requestBody);
HttpURLConnection conn;
int status;
try {
conn = post(GCM_SEND_ENDPOINT, requestBody);
status = conn.getResponseCode();
} catch (IOException e) {
logger.log(Level.FINE, "IOException posting to GCM", e);
return null;
}
if (status / 100 == 5) {
logger.fine("GCM service is unavailable (status " + status + ")");
return null;
}
String responseBody;
if (status != 200) {
try {
responseBody = getAndClose(conn.getErrorStream());
logger.finest("Plain post error response: " + responseBody);
} catch (IOException e) {
// ignore the exception since it will thrown an InvalidRequestException
// anyways
responseBody = "N/A";
logger.log(Level.FINE, "Exception reading response: ", e);
}
throw new InvalidRequestException(status, responseBody);
} else {
try {
responseBody = getAndClose(conn.getInputStream());
} catch (IOException e) {
logger.log(Level.WARNING, "Exception reading response: ", e);
// return null so it can retry
return null;
}
}
String[] lines = responseBody.split("\n");
if (lines.length == 0 || lines[0].equals("")) {
throw new IOException("Received empty response from GCM service.");
}
String firstLine = lines[0];
String[] responseParts = split(firstLine);
String token = responseParts[0];
String value = responseParts[1];
if (token.equals(TOKEN_MESSAGE_ID)) {
Builder builder = new Result.Builder().messageId(value);
// check for canonical registration id
if (lines.length > 1) {
String secondLine = lines[1];
responseParts = split(secondLine);
token = responseParts[0];
value = responseParts[1];
if (token.equals(TOKEN_CANONICAL_REG_ID)) {
builder.canonicalRegistrationId(value);
} else {
logger.warning("Invalid response from GCM: " + responseBody);
}
}
Result result = builder.build();
if (logger.isLoggable(Level.FINE)) {
logger.fine("Message created succesfully (" + result + ")");
}
return result;
} else if (token.equals(TOKEN_ERROR)) {
return new Result.Builder().errorCode(value).build();
} else {
throw new IOException("Invalid response from GCM: " + responseBody);
}
}
/**
* Sends a message to many devices, retrying in case of unavailability.
*
* <p>
* <strong>Note: </strong> this method uses exponential back-off to retry in
* case of service unavailability and hence could block the calling thread
* for many seconds.
*
* @param message message to be sent.
* @param regIds registration id of the devices that will receive
* the message.
* @param retries number of retries in case of service unavailability errors.
*
* @return combined result of all requests made.
*
* @throws IllegalArgumentException if registrationIds is {@literal null} or
* empty.
* @throws InvalidRequestException if GCM didn't returned a 200 or 503 status.
* @throws IOException if message could not be sent.
*/
public MulticastResult send(Message message, List<String> regIds, int retries)
throws IOException {
int attempt = 0;
MulticastResult multicastResult;
int backoff = BACKOFF_INITIAL_DELAY;
// Map of results by registration id, it will be updated after each attempt
// to send the messages
Map<String, Result> results = new HashMap<String, Result>();
List<String> unsentRegIds = new ArrayList<String>(regIds);
boolean tryAgain;
List<Long> multicastIds = new ArrayList<Long>();
do {
multicastResult = null;
attempt++;
if (logger.isLoggable(Level.FINE)) {
logger.fine("Attempt #" + attempt + " to send message " +
message + " to regIds " + unsentRegIds);
}
try {
multicastResult = sendNoRetry(message, unsentRegIds);
} catch(IOException e) {
// no need for WARNING since exception might be already logged
logger.log(Level.FINEST, "IOException on attempt " + attempt, e);
}
if (multicastResult != null) {
long multicastId = multicastResult.getMulticastId();
logger.fine("multicast_id on attempt # " + attempt + ": " +
multicastId);
multicastIds.add(multicastId);
unsentRegIds = updateStatus(unsentRegIds, results, multicastResult);
tryAgain = !unsentRegIds.isEmpty() && attempt <= retries;
} else {
tryAgain = attempt <= retries;
}
if (tryAgain) {
int sleepTime = backoff / 2 + random.nextInt(backoff);
sleep(sleepTime);
if (2 * backoff < MAX_BACKOFF_DELAY) {
backoff *= 2;
}
}
} while (tryAgain);
if (multicastIds.isEmpty()) {
// all JSON posts failed due to GCM unavailability
throw new IOException("Could not post JSON requests to GCM after "
+ attempt + " attempts");
}
// calculate summary
int success = 0, failure = 0 , canonicalIds = 0;
for (Result result : results.values()) {
if (result.getMessageId() != null) {
success++;
if (result.getCanonicalRegistrationId() != null) {
canonicalIds++;
}
} else {
failure++;
}
}
// build a new object with the overall result
long multicastId = multicastIds.remove(0);
MulticastResult.Builder builder = new MulticastResult.Builder(success,
failure, canonicalIds, multicastId).retryMulticastIds(multicastIds);
// add results, in the same order as the input
for (String regId : regIds) {
Result result = results.get(regId);
builder.addResult(result);
}
return builder.build();
}
/**
* Updates the status of the messages sent to devices and the list of devices
* that should be retried.
*
* @param unsentRegIds list of devices that are still pending an update.
* @param allResults map of status that will be updated.
* @param multicastResult result of the last multicast sent.
*
* @return updated version of devices that should be retried.
*/
private List<String> updateStatus(List<String> unsentRegIds,
Map<String, Result> allResults, MulticastResult multicastResult) {
List<Result> results = multicastResult.getResults();
if (results.size() != unsentRegIds.size()) {
// should never happen, unless there is a flaw in the algorithm
throw new RuntimeException("Internal error: sizes do not match. " +
"currentResults: " + results + "; unsentRegIds: " + unsentRegIds);
}
List<String> newUnsentRegIds = new ArrayList<String>();
for (int i = 0; i < unsentRegIds.size(); i++) {
String regId = unsentRegIds.get(i);
Result result = results.get(i);
allResults.put(regId, result);
String error = result.getErrorCodeName();
if (error != null && (error.equals(Constants.ERROR_UNAVAILABLE)
|| error.equals(Constants.ERROR_INTERNAL_SERVER_ERROR))) {
newUnsentRegIds.add(regId);
}
}
return newUnsentRegIds;
}
/**
* Sends a message without retrying in case of service unavailability. See
* {@link #send(Message, List, int)} for more info.
*
* @return multicast results if the message was sent successfully,
* {@literal null} if it failed but could be retried.
*
* @throws IllegalArgumentException if registrationIds is {@literal null} or
* empty.
* @throws InvalidRequestException if GCM didn't returned a 200 status.
* @throws IOException if there was a JSON parsing error
*/
public MulticastResult sendNoRetry(Message message,
List<String> registrationIds) throws IOException {
if (nonNull(registrationIds).isEmpty()) {
throw new IllegalArgumentException("registrationIds cannot be empty");
}
Map<Object, Object> jsonRequest = new HashMap<Object, Object>();
setJsonField(jsonRequest, PARAM_TIME_TO_LIVE, message.getTimeToLive());
setJsonField(jsonRequest, PARAM_COLLAPSE_KEY, message.getCollapseKey());
setJsonField(jsonRequest, PARAM_RESTRICTED_PACKAGE_NAME, message.getRestrictedPackageName());
setJsonField(jsonRequest, PARAM_DELAY_WHILE_IDLE,
message.isDelayWhileIdle());
setJsonField(jsonRequest, PARAM_DRY_RUN, message.isDryRun());
jsonRequest.put(JSON_REGISTRATION_IDS, registrationIds);
Map<String, String> payload = message.getData();
if (!payload.isEmpty()) {
jsonRequest.put(JSON_PAYLOAD, payload);
}
String requestBody = JSONValue.toJSONString(jsonRequest);
logger.finest("JSON request: " + requestBody);
HttpURLConnection conn;
int status;
try {
conn = post(GCM_SEND_ENDPOINT, "application/json", requestBody);
status = conn.getResponseCode();
} catch (IOException e) {
logger.log(Level.FINE, "IOException posting to GCM", e);
return null;
}
String responseBody;
if (status != 200) {
try {
responseBody = getAndClose(conn.getErrorStream());
logger.finest("JSON error response: " + responseBody);
} catch (IOException e) {
// ignore the exception since it will thrown an InvalidRequestException
// anyways
responseBody = "N/A";
logger.log(Level.FINE, "Exception reading response: ", e);
}
throw new InvalidRequestException(status, responseBody);
}
try {
responseBody = getAndClose(conn.getInputStream());
} catch(IOException e) {
logger.log(Level.WARNING, "IOException reading response", e);
return null;
}
logger.finest("JSON response: " + responseBody);
JSONParser parser = new JSONParser();
JSONObject jsonResponse;
try {
jsonResponse = (JSONObject) parser.parse(responseBody);
int success = getNumber(jsonResponse, JSON_SUCCESS).intValue();
int failure = getNumber(jsonResponse, JSON_FAILURE).intValue();
int canonicalIds = getNumber(jsonResponse, JSON_CANONICAL_IDS).intValue();
long multicastId = getNumber(jsonResponse, JSON_MULTICAST_ID).longValue();
MulticastResult.Builder builder = new MulticastResult.Builder(success,
failure, canonicalIds, multicastId);
@SuppressWarnings("unchecked")
List<Map<String, Object>> results =
(List<Map<String, Object>>) jsonResponse.get(JSON_RESULTS);
if (results != null) {
for (Map<String, Object> jsonResult : results) {
String messageId = (String) jsonResult.get(JSON_MESSAGE_ID);
String canonicalRegId =
(String) jsonResult.get(TOKEN_CANONICAL_REG_ID);
String error = (String) jsonResult.get(JSON_ERROR);
Result result = new Result.Builder()
.messageId(messageId)
.canonicalRegistrationId(canonicalRegId)
.errorCode(error)
.build();
builder.addResult(result);
}
}
MulticastResult multicastResult = builder.build();
return multicastResult;
} catch (ParseException e) {
throw newIoException(responseBody, e);
} catch (CustomParserException e) {
throw newIoException(responseBody, e);
}
}
private IOException newIoException(String responseBody, Exception e) {
// log exception, as IOException constructor that takes a message and cause
// is only available on Java 6
String msg = "Error parsing JSON response (" + responseBody + ")";
logger.log(Level.WARNING, msg, e);
return new IOException(msg + ":" + e);
}
private static void close(Closeable closeable) {
if (closeable != null) {
try {
closeable.close();
} catch (IOException e) {
// ignore error
logger.log(Level.FINEST, "IOException closing stream", e);
}
}
}
/**
* Sets a JSON field, but only if the value is not {@literal null}.
*/
private void setJsonField(Map<Object, Object> json, String field,
Object value) {
if (value != null) {
json.put(field, value);
}
}
private Number getNumber(Map<?, ?> json, String field) {
Object value = json.get(field);
if (value == null) {
throw new CustomParserException("Missing field: " + field);
}
if (!(value instanceof Number)) {
throw new CustomParserException("Field " + field +
" does not contain a number: " + value);
}
return (Number) value;
}
class CustomParserException extends RuntimeException {
CustomParserException(String message) {
super(message);
}
}
private String[] split(String line) throws IOException {
String[] split = line.split("=", 2);
if (split.length != 2) {
throw new IOException("Received invalid response line from GCM: " + line);
}
return split;
}
/**
* Make an HTTP post to a given URL.
*
* @return HTTP response.
*/
protected HttpURLConnection post(String url, String body)
throws IOException {
return post(url, "application/x-www-form-urlencoded;charset=UTF-8", body);
}
/**
* Makes an HTTP POST request to a given endpoint.
*
* <p>
* <strong>Note: </strong> the returned connected should not be disconnected,
* otherwise it would kill persistent connections made using Keep-Alive.
*
* @param url endpoint to post the request.
* @param contentType type of request.
* @param body body of the request.
*
* @return the underlying connection.
*
* @throws IOException propagated from underlying methods.
*/
protected HttpURLConnection post(String url, String contentType, String body)
throws IOException {
if (url == null || body == null) {
throw new IllegalArgumentException("arguments cannot be null");
}
if (!url.startsWith("https://")) {
logger.warning("URL does not use https: " + url);
}
logger.fine("Sending POST to " + url);
logger.finest("POST body: " + body);
byte[] bytes = body.getBytes();
HttpURLConnection conn = getConnection(url);
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setFixedLengthStreamingMode(bytes.length);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", contentType);
conn.setRequestProperty("Authorization", "key=" + key);
OutputStream out = conn.getOutputStream();
try {
out.write(bytes);
} finally {
close(out);
}
return conn;
}
/**
* Creates a map with just one key-value pair.
*/
protected static final Map<String, String> newKeyValues(String key,
String value) {
Map<String, String> keyValues = new HashMap<String, String>(1);
keyValues.put(nonNull(key), nonNull(value));
return keyValues;
}
/**
* Creates a {@link StringBuilder} to be used as the body of an HTTP POST.
*
* @param name initial parameter for the POST.
* @param value initial value for that parameter.
* @return StringBuilder to be used an HTTP POST body.
*/
protected static StringBuilder newBody(String name, String value) {
return new StringBuilder(nonNull(name)).append('=').append(nonNull(value));
}
/**
* Adds a new parameter to the HTTP POST body.
*
* @param body HTTP POST body.
* @param name parameter's name.
* @param value parameter's value.
*/
protected static void addParameter(StringBuilder body, String name,
String value) {
nonNull(body).append('&')
.append(nonNull(name)).append('=').append(nonNull(value));
}
/**
* Gets an {@link HttpURLConnection} given an URL.
*/
protected HttpURLConnection getConnection(String url) throws IOException {
HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
return conn;
}
/**
* Convenience method to convert an InputStream to a String.
* <p>
* If the stream ends in a newline character, it will be stripped.
* <p>
* If the stream is {@literal null}, returns an empty string.
*/
protected static String getString(InputStream stream) throws IOException {
if (stream == null) {
return "";
}
BufferedReader reader =
new BufferedReader(new InputStreamReader(stream));
StringBuilder content = new StringBuilder();
String newLine;
do {
newLine = reader.readLine();
if (newLine != null) {
content.append(newLine).append('\n');
}
} while (newLine != null);
if (content.length() > 0) {
// strip last newline
content.setLength(content.length() - 1);
}
return content.toString();
}
private static String getAndClose(InputStream stream) throws IOException {
try {
return getString(stream);
} finally {
if (stream != null) {
close(stream);
}
}
}
static <T> T nonNull(T argument) {
if (argument == null) {
throw new IllegalArgumentException("argument cannot be null");
}
return argument;
}
void sleep(long millis) {
try {
Thread.sleep(millis);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import java.io.Serializable;
/**
* Result of a GCM message request that returned HTTP status code 200.
*
* <p>
* If the message is successfully created, the {@link #getMessageId()} returns
* the message id and {@link #getErrorCodeName()} returns {@literal null};
* otherwise, {@link #getMessageId()} returns {@literal null} and
* {@link #getErrorCodeName()} returns the code of the error.
*
* <p>
* There are cases when a request is accept and the message successfully
* created, but GCM has a canonical registration id for that device. In this
* case, the server should update the registration id to avoid rejected requests
* in the future.
*
* <p>
* In a nutshell, the workflow to handle a result is:
* <pre>
* - Call {@link #getMessageId()}:
* - {@literal null} means error, call {@link #getErrorCodeName()}
* - non-{@literal null} means the message was created:
* - Call {@link #getCanonicalRegistrationId()}
* - if it returns {@literal null}, do nothing.
* - otherwise, update the server datastore with the new id.
* </pre>
*/
public final class Result implements Serializable {
private final String messageId;
private final String canonicalRegistrationId;
private final String errorCode;
public static final class Builder {
// optional parameters
private String messageId;
private String canonicalRegistrationId;
private String errorCode;
public Builder canonicalRegistrationId(String value) {
canonicalRegistrationId = value;
return this;
}
public Builder messageId(String value) {
messageId = value;
return this;
}
public Builder errorCode(String value) {
errorCode = value;
return this;
}
public Result build() {
return new Result(this);
}
}
private Result(Builder builder) {
canonicalRegistrationId = builder.canonicalRegistrationId;
messageId = builder.messageId;
errorCode = builder.errorCode;
}
/**
* Gets the message id, if any.
*/
public String getMessageId() {
return messageId;
}
/**
* Gets the canonical registration id, if any.
*/
public String getCanonicalRegistrationId() {
return canonicalRegistrationId;
}
/**
* Gets the error code, if any.
*/
public String getErrorCodeName() {
return errorCode;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder("[");
if (messageId != null) {
builder.append(" messageId=").append(messageId);
}
if (canonicalRegistrationId != null) {
builder.append(" canonicalRegistrationId=")
.append(canonicalRegistrationId);
}
if (errorCode != null) {
builder.append(" errorCode=").append(errorCode);
}
return builder.append(" ]").toString();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Result of a GCM multicast message request .
*/
public final class MulticastResult implements Serializable {
private final int success;
private final int failure;
private final int canonicalIds;
private final long multicastId;
private final List<Result> results;
private final List<Long> retryMulticastIds;
public static final class Builder {
private final List<Result> results = new ArrayList<Result>();
// required parameters
private final int success;
private final int failure;
private final int canonicalIds;
private final long multicastId;
// optional parameters
private List<Long> retryMulticastIds;
public Builder(int success, int failure, int canonicalIds,
long multicastId) {
this.success = success;
this.failure = failure;
this.canonicalIds = canonicalIds;
this.multicastId = multicastId;
}
public Builder addResult(Result result) {
results.add(result);
return this;
}
public Builder retryMulticastIds(List<Long> retryMulticastIds) {
this.retryMulticastIds = retryMulticastIds;
return this;
}
public MulticastResult build() {
return new MulticastResult(this);
}
}
private MulticastResult(Builder builder) {
success = builder.success;
failure = builder.failure;
canonicalIds = builder.canonicalIds;
multicastId = builder.multicastId;
results = Collections.unmodifiableList(builder.results);
List<Long> tmpList = builder.retryMulticastIds;
if (tmpList == null) {
tmpList = Collections.emptyList();
}
retryMulticastIds = Collections.unmodifiableList(tmpList);
}
/**
* Gets the multicast id.
*/
public long getMulticastId() {
return multicastId;
}
/**
* Gets the number of successful messages.
*/
public int getSuccess() {
return success;
}
/**
* Gets the total number of messages sent, regardless of the status.
*/
public int getTotal() {
return success + failure;
}
/**
* Gets the number of failed messages.
*/
public int getFailure() {
return failure;
}
/**
* Gets the number of successful messages that also returned a canonical
* registration id.
*/
public int getCanonicalIds() {
return canonicalIds;
}
/**
* Gets the results of each individual message, which is immutable.
*/
public List<Result> getResults() {
return results;
}
/**
* Gets additional ids if more than one multicast message was sent.
*/
public List<Long> getRetryMulticastIds() {
return retryMulticastIds;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder("MulticastResult(")
.append("multicast_id=").append(multicastId).append(",")
.append("total=").append(getTotal()).append(",")
.append("success=").append(success).append(",")
.append("failure=").append(failure).append(",")
.append("canonical_ids=").append(canonicalIds).append(",");
if (!results.isEmpty()) {
builder.append("results: " + results);
}
return builder.toString();
}
}
| Java |
/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.gcm.server;
/**
* Constants used on GCM service communication.
*/
public final class Constants {
/**
* Endpoint for sending messages.
*/
public static final String GCM_SEND_ENDPOINT =
"https://android.googleapis.com/gcm/send";
/**
* HTTP parameter for registration id.
*/
public static final String PARAM_REGISTRATION_ID = "registration_id";
/**
* HTTP parameter for collapse key.
*/
public static final String PARAM_COLLAPSE_KEY = "collapse_key";
/**
* HTTP parameter for delaying the message delivery if the device is idle.
*/
public static final String PARAM_DELAY_WHILE_IDLE = "delay_while_idle";
/**
* HTTP parameter for telling gcm to validate the message without actually sending it.
*/
public static final String PARAM_DRY_RUN = "dry_run";
/**
* HTTP parameter for package name that can be used to restrict message delivery by matching
* against the package name used to generate the registration id.
*/
public static final String PARAM_RESTRICTED_PACKAGE_NAME = "restricted_package_name";
/**
* Prefix to HTTP parameter used to pass key-values in the message payload.
*/
public static final String PARAM_PAYLOAD_PREFIX = "data.";
/**
* Prefix to HTTP parameter used to set the message time-to-live.
*/
public static final String PARAM_TIME_TO_LIVE = "time_to_live";
/**
* Too many messages sent by the sender. Retry after a while.
*/
public static final String ERROR_QUOTA_EXCEEDED = "QuotaExceeded";
/**
* Too many messages sent by the sender to a specific device.
* Retry after a while.
*/
public static final String ERROR_DEVICE_QUOTA_EXCEEDED =
"DeviceQuotaExceeded";
/**
* Missing registration_id.
* Sender should always add the registration_id to the request.
*/
public static final String ERROR_MISSING_REGISTRATION = "MissingRegistration";
/**
* Bad registration_id. Sender should remove this registration_id.
*/
public static final String ERROR_INVALID_REGISTRATION = "InvalidRegistration";
/**
* The sender_id contained in the registration_id does not match the
* sender_id used to register with the GCM servers.
*/
public static final String ERROR_MISMATCH_SENDER_ID = "MismatchSenderId";
/**
* The user has uninstalled the application or turned off notifications.
* Sender should stop sending messages to this device and delete the
* registration_id. The client needs to re-register with the GCM servers to
* receive notifications again.
*/
public static final String ERROR_NOT_REGISTERED = "NotRegistered";
/**
* The payload of the message is too big, see the limitations.
* Reduce the size of the message.
*/
public static final String ERROR_MESSAGE_TOO_BIG = "MessageTooBig";
/**
* Collapse key is required. Include collapse key in the request.
*/
public static final String ERROR_MISSING_COLLAPSE_KEY = "MissingCollapseKey";
/**
* A particular message could not be sent because the GCM servers were not
* available. Used only on JSON requests, as in plain text requests
* unavailability is indicated by a 503 response.
*/
public static final String ERROR_UNAVAILABLE = "Unavailable";
/**
* A particular message could not be sent because the GCM servers encountered
* an error. Used only on JSON requests, as in plain text requests internal
* errors are indicated by a 500 response.
*/
public static final String ERROR_INTERNAL_SERVER_ERROR =
"InternalServerError";
/**
* Time to Live value passed is less than zero or more than maximum.
*/
public static final String ERROR_INVALID_TTL= "InvalidTtl";
/**
* Token returned by GCM when a message was successfully sent.
*/
public static final String TOKEN_MESSAGE_ID = "id";
/**
* Token returned by GCM when the requested registration id has a canonical
* value.
*/
public static final String TOKEN_CANONICAL_REG_ID = "registration_id";
/**
* Token returned by GCM when there was an error sending a message.
*/
public static final String TOKEN_ERROR = "Error";
/**
* JSON-only field representing the registration ids.
*/
public static final String JSON_REGISTRATION_IDS = "registration_ids";
/**
* JSON-only field representing the payload data.
*/
public static final String JSON_PAYLOAD = "data";
/**
* JSON-only field representing the number of successful messages.
*/
public static final String JSON_SUCCESS = "success";
/**
* JSON-only field representing the number of failed messages.
*/
public static final String JSON_FAILURE = "failure";
/**
* JSON-only field representing the number of messages with a canonical
* registration id.
*/
public static final String JSON_CANONICAL_IDS = "canonical_ids";
/**
* JSON-only field representing the id of the multicast request.
*/
public static final String JSON_MULTICAST_ID = "multicast_id";
/**
* JSON-only field representing the result of each individual request.
*/
public static final String JSON_RESULTS = "results";
/**
* JSON-only field representing the error field of an individual request.
*/
public static final String JSON_ERROR = "error";
/**
* JSON-only field sent by GCM when a message was successfully sent.
*/
public static final String JSON_MESSAGE_ID = "message_id";
private Constants() {
throw new UnsupportedOperationException();
}
}
| Java |
package com.anjho.pojo;
import java.io.Serializable;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;
/**
* Entity implementation class for Entity: Page
*
*/
@Entity
@Table(name = "page")
@NamedQueries({ @NamedQuery(name = "Page.findByPacode", query = "SELECT p FROM Page p WHERE p.pacode = :pacode") })
public class Page implements Serializable {
private static final long serialVersionUID = -496450448502306401L;
@Id
@Column(name="pacode")
@GeneratedValue(strategy = GenerationType.SEQUENCE)
@OneToMany(mappedBy = "page", cascade={CascadeType.PERSIST})
private int pacode;
@Column(name = "description", nullable = false, length = 50)
private String description;
public Page() {
}
public Page(String page) {
this.description = page;
}
public int getPacode() {
return this.pacode;
}
public void setPacode(int pacode) {
this.pacode = pacode;
}
public String getDescription() {
return this.description;
}
public void setDescription(String description) {
this.description = description;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((description == null) ? 0 : description.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Page other = (Page) obj;
if (description == null) {
if (other.description != null)
return false;
} else if (!description.equals(other.description))
return false;
return true;
}
}
| Java |
package com.anjho.pojo;
import java.io.Serializable;
import java.util.Date;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
@Entity
@Table(name = "person")
@NamedQueries({
@NamedQuery(name = "Person.findAll", query = "SELECT p FROM Person p"),
@NamedQuery(name = "Person.findByDocument", query = "SELECT p FROM Person p WHERE p.document = :document")
})
public class Person implements Serializable {
private static final long serialVersionUID = -1763248351730477102L;
public Person(){
this.setAddress(new Address());
this.setPersonType(new PersonType());
this.setBirthDate(new Date());
}
@Id
@Column(name = "document", length = 14)
@OneToMany(mappedBy="person", cascade = {CascadeType.PERSIST})
private String document;
@Column(name = "name", nullable = false, length = 80)
private String name;
@ManyToOne
@JoinColumn(name = "adcode", nullable = false)
private Address address;
@ManyToOne
@JoinColumn(name = "ptcode", nullable = false)
private PersonType personType;
@Column(name = "addressNumber")
private int addressNumber;
@Column(name = "complement", length = 50)
private String complement;
@Temporal(TemporalType.DATE)
@Column(name = "birthDate", nullable = false)
private Date birthDate;
@Column(name = "phone1", length = 12)
private String phone1;
@Column(name = "phone2", length = 12)
private String phone2;
@Column(name = "email", length = 80)
private String email;
public String getDocument() {
return document;
}
public void setDocument(String document) {
this.document = document;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
public PersonType getPersonType() {
return personType;
}
public void setPersonType(PersonType personType) {
this.personType = personType;
}
public int getAddressNumber() {
return addressNumber;
}
public void setAddressNumber(int addressNumber) {
this.addressNumber = addressNumber;
}
public String getComplement() {
return complement;
}
public void setComplement(String complement) {
this.complement = complement;
}
public Date getBirthDate() {
return birthDate;
}
public void setBirthDate(Date birthDate) {
this.birthDate = birthDate;
}
public String getPhone1() {
return phone1;
}
public void setPhone1(String phone1) {
this.phone1 = phone1;
}
public String getPhone2() {
return phone2;
}
public void setPhone2(String phone2) {
this.phone2 = phone2;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((document == null) ? 0 : document.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Person other = (Person) obj;
if (document == null) {
if (other.document != null)
return false;
} else if (!document.equals(other.document))
return false;
return true;
}
}
| Java |
package com.anjho.pojo;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;
@Entity
@Table(name = "neighborhood")
@NamedQueries(value = {
@NamedQuery(name = "Neighborhood.getNeighborhoodList", query = "SELECT n FROM Neighborhood n"),
@NamedQuery(name = "Neighborhood.getNeighborhoodByNhcode", query = "SELECT n FROM Neighborhood n WHERE n.nhcode = :nhcode")
})
public class Neighborhood implements Serializable {
private static final long serialVersionUID = -6548967225000019436L;
public Neighborhood() {
this.setName("");
this.setCity(new City());
}
@Id
@Column(name="nhcode")
@OneToMany(mappedBy="neighborhood")
private int nhcode;
@ManyToOne
@JoinColumn(name="cicode", nullable=false)
private City city;
@Column(name="name", nullable=false, length=72)
private String name;
public int getNhcode() {
return nhcode;
}
public void setNhcode(int nhcode) {
this.nhcode = nhcode;
}
public City getCity() {
return city;
}
public void setCity(City city) {
this.city = city;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + nhcode;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Neighborhood other = (Neighborhood) obj;
if (nhcode != other.nhcode)
return false;
return true;
}
}
| Java |
package com.anjho.pojo;
import java.io.Serializable;
import java.math.BigDecimal;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
@Entity
@Table(name = "product")
@NamedQueries(value = {
@NamedQuery(name = "Product.getProductList", query = "SELECT p FROM Product p"),
@NamedQuery(name = "Product.getProductListWhereReturnIsNull", query = "SELECT p FROM Product p WHERE p.returnDate IS NULL"),
@NamedQuery(name = "Product.getProductByBarcode", query = "SELECT p FROM Product p WHERE p.barcode = :barcode"),
@NamedQuery(name = "Product.getProductByNumber", query = "SELECT p FROM Product p WHERE p.proNumber = :proNumber"),
@NamedQuery(name = "Product.getProductByCover", query = "SELECT p FROM Product p WHERE p.cover = :cover"),
@NamedQuery(name = "Product.getProductByBarcodeAndNumber", query = "SELECT p FROM Product p WHERE p.barcode = :barcode AND p.proNumber= :proNumber") })
public class Product implements Serializable {
private static final long serialVersionUID = 5405728628984307490L;
public Product(){
this.setDistributor(new Distributor());
this.setGenre(new Genre());
this.setPublisher(new Publisher());
this.setReceiptDate(new Date());
this.setReturnDate(new Date());
}
@Id
@Column(name="prcode")
@OneToMany(mappedBy="product")
@GeneratedValue(strategy=GenerationType.SEQUENCE)
private long prcode;
@Column(name = "barcode", length = 23, nullable = false)
private String barcode;
@Column(name = "pronumber", length = 5, nullable = true)
private String proNumber;
@Column(name = "name", nullable = false, length = 50)
private String name;
@Column(name = "cover", nullable = false, length = 100)
private String cover;
@Column(name = "price", nullable = false, precision = 10, scale=2)
private BigDecimal price;
@Column(name = "qtd", nullable = false)
private int qtd;
@Column(name = "receivedQtd", nullable = false)
private int receivedQtd;
@Temporal(TemporalType.DATE)
@Column(name = "receiptDate", nullable = false)
private Date receiptDate;
@Temporal(TemporalType.DATE)
@Column(name = "returnDate", nullable = true)
private Date returnDate;
@ManyToOne
@JoinColumn(name = "pucode", nullable = true)
private Publisher publisher;
@ManyToOne
@JoinColumn(name = "dicode", nullable = true)
private Distributor distributor;
@ManyToOne
@JoinColumn(name = "gecode", nullable = true)
private Genre genre;
public long getPrcode() {
return prcode;
}
public void setPrcode(long prcode) {
this.prcode = prcode;
}
public String getBarcode() {
return barcode;
}
public void setBarcode(String barcode) {
this.barcode = barcode;
}
public String getProNumber() {
return proNumber;
}
public void setProNumber(String proNumber) {
this.proNumber = proNumber;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCover() {
return cover;
}
public void setCover(String cover) {
this.cover = cover;
}
public BigDecimal getPrice() {
return price;
}
public void setPrice(BigDecimal price) {
this.price = price;
}
public int getQtd() {
return qtd;
}
public void setQtd(int qtd) {
this.qtd = qtd;
}
public int getReceivedQtd() {
return receivedQtd;
}
public void setReceivedQtd(int receivedQtd) {
this.receivedQtd = receivedQtd;
}
public Date getReceiptDate() {
return receiptDate;
}
public void setReceiptDate(Date receiptDate) {
this.receiptDate = receiptDate;
}
public Date getReturnDate() {
return returnDate;
}
public void setReturnDate(Date returnDate) {
this.returnDate = returnDate;
}
public Publisher getPublisher() {
return publisher;
}
public void setPublisher(Publisher publisher) {
this.publisher = publisher;
}
public Distributor getDistributor() {
return distributor;
}
public void setDistributor(Distributor distributor) {
this.distributor = distributor;
}
public Genre getGenre() {
return genre;
}
public void setGenre(Genre genre) {
this.genre = genre;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((barcode == null) ? 0 : barcode.hashCode());
result = prime * result
+ ((proNumber == null) ? 0 : proNumber.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Product other = (Product) obj;
if (barcode == null) {
if (other.barcode != null)
return false;
} else if (!barcode.equals(other.barcode))
return false;
if (proNumber == null) {
if (other.proNumber != null)
return false;
} else if (!proNumber.equals(other.proNumber))
return false;
return true;
}
}
| Java |
package com.anjho.pojo;
import java.io.Serializable;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.OneToOne;
import javax.persistence.Table;
@Entity
@Table(name = "distributor")
@NamedQueries(value = {
@NamedQuery(name = "Distributor.getDistributorList", query = "SELECT d FROM Distributor d"),
@NamedQuery(name = "Distributor.getDistributorByDicode", query = "SELECT d FROM Distributor d WHERE d.dicode = :dicode") })
public class Distributor implements Serializable {
private static final long serialVersionUID = -5032574662192861153L;
public Distributor() {
this.setDicode(0);
this.setPerson(new Person());
}
@Id
@Column(name = "dicode")
@OneToMany(mappedBy = "distributor")
@GeneratedValue(strategy = GenerationType.SEQUENCE)
private int dicode;
@OneToOne(cascade = {CascadeType.PERSIST})
@JoinColumn(name = "document", nullable = false)
private Person person;
@Column(name = "segment", length = 50)
private String segment;
public String getSegment() {
return segment;
}
public void setSegment(String segment) {
this.segment = segment;
}
public int getDicode() {
return dicode;
}
public void setDicode(int dicode) {
this.dicode = dicode;
}
public Person getPerson() {
return person;
}
public void setPerson(Person person) {
this.person = person;
}
public String getFormattedDocument() {
return this.person.getDocument().substring(0, 2) + "."
+ this.person.getDocument().substring(2, 5) + "."
+ this.person.getDocument().substring(5, 8) + "/"
+ this.person.getDocument().substring(8, 11) + "-"
+ this.person.getDocument().substring(11, 12);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + dicode;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Distributor other = (Distributor) obj;
if (dicode != other.dicode)
return false;
return true;
}
}
| Java |
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