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private String limitStringLength ( String str ) { if ( str . length ( ) > MAX_STRING_LENGTH ) { str = str . substring ( 0 , MAX_STRING_LENGTH ) + " ..." ; } return str ; }
prevents gigantic messages
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private Map < String , Object > getRateLimitTemplateProperties ( SingularityRequest request , final SingularityEmailType emailType ) { final Builder < String , Object > templateProperties = ImmutableMap . < String , Object > builder ( ) ; templateProperties . put ( "singularityRequestLink" , mailTemplateHelpers . getSi...
Add needed information to the rate limit email Jade context .
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private void queueMail ( final Collection < SingularityEmailDestination > destination , final SingularityRequest request , final SingularityEmailType emailType , final Optional < String > actionTaker , String subject , String body ) { RateLimitResult result = checkRateLimitForMail ( request , emailType ) ; if ( result ...
Check to see if email should be rate limited and if so send a rate limit email notification . Next attempt to email will immediately return .
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public Collection < SingularityRequestParent > getSingularityRequests ( ) { final Function < String , String > requestUri = ( host ) -> String . format ( REQUESTS_FORMAT , getApiBase ( host ) ) ; return getCollection ( requestUri , "[ACTIVE, PAUSED, COOLDOWN] requests" , REQUESTS_COLLECTION ) ; }
Get all singularity requests that their state is either ACTIVE PAUSED or COOLDOWN
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public Collection < SingularityRequestParent > getActiveSingularityRequests ( ) { final Function < String , String > requestUri = ( host ) -> String . format ( REQUESTS_GET_ACTIVE_FORMAT , getApiBase ( host ) ) ; return getCollection ( requestUri , "ACTIVE requests" , REQUESTS_COLLECTION ) ; }
Get all requests that their state is ACTIVE
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public Collection < SingularityRequestParent > getPausedSingularityRequests ( ) { final Function < String , String > requestUri = ( host ) -> String . format ( REQUESTS_GET_PAUSED_FORMAT , getApiBase ( host ) ) ; return getCollection ( requestUri , "PAUSED requests" , REQUESTS_COLLECTION ) ; }
Get all requests that their state is PAUSED ACTIVE requests are paused by users which is equivalent to stop their tasks from running without undeploying them
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public Collection < SingularityRequestParent > getCoolDownSingularityRequests ( ) { final Function < String , String > requestUri = ( host ) -> String . format ( REQUESTS_GET_COOLDOWN_FORMAT , getApiBase ( host ) ) ; return getCollection ( requestUri , "COOLDOWN requests" , REQUESTS_COLLECTION ) ; }
Get all requests that has been set to a COOLDOWN state by singularity
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public Collection < SingularityPendingRequest > getPendingSingularityRequests ( ) { final Function < String , String > requestUri = ( host ) -> String . format ( REQUESTS_GET_PENDING_FORMAT , getApiBase ( host ) ) ; return getCollection ( requestUri , "pending requests" , PENDING_REQUESTS_COLLECTION ) ; }
Get all requests that are pending to become ACTIVE
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public Collection < SingularitySlave > getSlaves ( Optional < MachineState > slaveState ) { final Function < String , String > requestUri = ( host ) -> String . format ( SLAVES_FORMAT , getApiBase ( host ) ) ; Optional < Map < String , Object > > maybeQueryParams = Optional . absent ( ) ; String type = "slaves" ; if ( ...
Retrieve the list of all known slaves optionally filtering by a particular slave state
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public Optional < SingularitySlave > getSlave ( String slaveId ) { final Function < String , String > requestUri = ( host ) -> String . format ( SLAVE_DETAIL_FORMAT , getApiBase ( host ) , slaveId ) ; return getSingle ( requestUri , "slave" , slaveId , SingularitySlave . class ) ; }
Retrieve a single slave by ID
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public Optional < SingularityTaskHistory > getHistoryForTask ( String taskId ) { final Function < String , String > requestUri = ( host ) -> String . format ( TASK_HISTORY_FORMAT , getApiBase ( host ) , taskId ) ; return getSingle ( requestUri , "task history" , taskId , SingularityTaskHistory . class ) ; }
Retrieve information about an inactive task by its id
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public Optional < SingularityTaskIdHistory > getHistoryForTask ( String requestId , String runId ) { return getTaskIdHistoryByRunId ( requestId , runId ) ; }
Retrieve the task id and state for an inactive task by its runId
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public Optional < SingularitySandbox > browseTaskSandBox ( String taskId , String path ) { final Function < String , String > requestUrl = ( host ) -> String . format ( SANDBOX_BROWSE_FORMAT , getApiBase ( host ) , taskId ) ; return getSingleWithParams ( requestUrl , "browse sandbox for task" , taskId , Optional . of (...
Retrieve information about a specific task s sandbox
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public Optional < MesosFileChunkObject > readSandBoxFile ( String taskId , String path , Optional < String > grep , Optional < Long > offset , Optional < Long > length ) { final Function < String , String > requestUrl = ( host ) -> String . format ( SANDBOX_READ_FILE_FORMAT , getApiBase ( host ) , taskId ) ; Builder < ...
Retrieve part of the contents of a file in a specific task s sandbox .
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public Collection < SingularityS3Log > getTaskLogs ( String taskId ) { final Function < String , String > requestUri = ( host ) -> String . format ( S3_LOG_GET_TASK_LOGS , getApiBase ( host ) , taskId ) ; final String type = String . format ( "S3 logs for task %s" , taskId ) ; return getCollection ( requestUri , type ,...
Retrieve the list of logs stored in S3 for a specific task
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public Collection < SingularityS3Log > getRequestLogs ( String requestId ) { final Function < String , String > requestUri = ( host ) -> String . format ( S3_LOG_GET_REQUEST_LOGS , getApiBase ( host ) , requestId ) ; final String type = String . format ( "S3 logs for request %s" , requestId ) ; return getCollection ( r...
Retrieve the list of logs stored in S3 for a specific request
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public Collection < SingularityS3Log > getDeployLogs ( String requestId , String deployId ) { final Function < String , String > requestUri = ( host ) -> String . format ( S3_LOG_GET_DEPLOY_LOGS , getApiBase ( host ) , requestId , deployId ) ; final String type = String . format ( "S3 logs for deploy %s of request %s" ...
Retrieve the list of logs stored in S3 for a specific deploy if a singularity request
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public Collection < SingularityRequestGroup > getRequestGroups ( ) { final Function < String , String > requestUri = ( host ) -> String . format ( REQUEST_GROUPS_FORMAT , getApiBase ( host ) ) ; return getCollection ( requestUri , "request groups" , REQUEST_GROUP_COLLECTION ) ; }
Retrieve the list of request groups
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public Optional < SingularityRequestGroup > getRequestGroup ( String requestGroupId ) { final Function < String , String > requestUri = ( host ) -> String . format ( REQUEST_GROUP_FORMAT , getApiBase ( host ) , requestGroupId ) ; return getSingle ( requestUri , "request group" , requestGroupId , SingularityRequestGroup...
Retrieve a specific request group by id
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public boolean isUserAuthorized ( String requestId , String userId , SingularityAuthorizationScope scope ) { final Function < String , String > requestUri = ( host ) -> String . format ( AUTH_CHECK_USER_FORMAT , getApiBase ( host ) , requestId , userId ) ; Map < String , Object > params = Collections . singletonMap ( "...
Check if a user is authorized for the specified scope on the specified request
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public Optional < SingularityTaskState > getTaskState ( String requestId , String runId ) { final Function < String , String > requestUri = ( host ) -> String . format ( TRACK_BY_RUN_ID_FORMAT , getApiBase ( host ) , requestId , runId ) ; return getSingle ( requestUri , "track by task id" , String . format ( "%s-%s" , ...
Get the current state of a task by its run IDg
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private void prepareCommand ( final TaskInfo . Builder bldr , final SingularityTaskId taskId , final SingularityTaskRequest task , final SingularityOfferHolder offerHolder , final Optional < long [ ] > ports ) { CommandInfo . Builder commandBldr = CommandInfo . newBuilder ( ) ; Optional < String > specifiedUser = task ...
Prepares the Mesos TaskInfo object when using the Mesos Default Executor .
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public static AsyncSemaphoreBuilder newBuilder ( Supplier < Integer > concurrentRequestLimit , ScheduledExecutorService flushingExecutor ) { return new AsyncSemaphoreBuilder ( new PermitSource ( concurrentRequestLimit ) , flushingExecutor ) ; }
Create an AsyncSemaphore with the given limit .
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private boolean tryEnqueueAttempt ( DelayedExecution < T > delayedExecution ) { int rejectionThreshold = queueRejectionThreshold . get ( ) ; if ( rejectionThreshold < 0 ) { return requestQueue . offer ( delayedExecution ) ; } long stamp = stampedLock . readLock ( ) ; try { while ( requestQueue . size ( ) < rejectionThr...
enqueue the attempt into our underlying queue . since it s expensive to dynamically resize the queue we have a separate rejection threshold which if less than 0 is ignored but otherwise is the practical cap on the size of the queue .
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private static boolean validateToken ( String originalToken , String storedToken ) throws NoSuchAlgorithmException , InvalidKeySpecException { String [ ] parts = storedToken . split ( ":" ) ; int iterations = Integer . parseInt ( parts [ 0 ] ) ; byte [ ] salt = fromHex ( parts [ 1 ] ) ; byte [ ] hash = fromHex ( parts ...
Implementation of PBKDF2WithHmacSHA1
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public void registered ( ExecutorDriver executorDriver , Protos . ExecutorInfo executorInfo , Protos . FrameworkInfo frameworkInfo , Protos . SlaveInfo slaveInfo ) { LOG . debug ( "Registered {} with Mesos slave {} for framework {}" , executorInfo . getExecutorId ( ) . getValue ( ) , slaveInfo . getId ( ) . getValue ( ...
Invoked once the executor driver has been able to successfully connect with Mesos . In particular a scheduler can pass some data to it s executors through the FrameworkInfo . ExecutorInfo s data field .
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public void reregistered ( ExecutorDriver executorDriver , Protos . SlaveInfo slaveInfo ) { LOG . debug ( "Re-registered with Mesos slave {}" , slaveInfo . getId ( ) . getValue ( ) ) ; LOG . info ( "Re-registered with Mesos slave {}" , MesosUtils . formatForLogging ( slaveInfo ) ) ; }
Invoked when the executor re - registers with a restarted slave .
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public void subscribe ( URI mesosMasterURI , SingularityMesosScheduler scheduler ) throws URISyntaxException { FrameworkInfo frameworkInfo = buildFrameworkInfo ( ) ; if ( mesosMasterURI == null || mesosMasterURI . getScheme ( ) . contains ( "zk" ) ) { throw new IllegalArgumentException ( String . format ( "Must use mas...
The first call to mesos needed to setup connection properly and identify a framework .
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public void acknowledge ( AgentID agentId , TaskID taskId , ByteString uuid ) { Builder acknowledge = build ( ) . setAcknowledge ( Acknowledge . newBuilder ( ) . setAgentId ( agentId ) . setTaskId ( taskId ) . setUuid ( uuid ) ) ; sendCall ( acknowledge , Type . ACKNOWLEDGE ) ; }
Sent by the scheduler to acknowledge a status update . Note that with the new API schedulers are responsible for explicitly acknowledging the receipt of status updates that have status . uuid set . These status updates are retried until they are acknowledged by the scheduler . The scheduler must not acknowledge status ...
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public void reconcile ( List < Reconcile . Task > tasks ) { Builder reconsile = build ( ) . setReconcile ( Reconcile . newBuilder ( ) . addAllTasks ( tasks ) ) ; sendCall ( reconsile , Type . RECONCILE ) ; }
Sent by the scheduler to query the status of non - terminal tasks . This causes the master to send back UPDATE events for each task in the list . Tasks that are no longer known to Mesos will result in TASK_LOST updates . If the list of tasks is empty master will send UPDATE events for all currently known tasks of the f...
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public void frameworkMessage ( ExecutorID executorId , AgentID agentId , byte [ ] data ) { Builder message = build ( ) . setMessage ( Message . newBuilder ( ) . setAgentId ( agentId ) . setExecutorId ( executorId ) . setData ( ByteString . copyFrom ( data ) ) ) ; sendCall ( message , Type . MESSAGE ) ; }
Sent by the scheduler to send arbitrary binary data to the executor . Mesos neither interprets this data nor makes any guarantees about the delivery of this message to the executor . data is raw bytes encoded in Base64 .
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public static CompletableFuture < Timeout > timeoutFuture ( HashedWheelTimer hwt , long delay , TimeUnit timeUnit ) { try { CompletableFuture < Timeout > future = new CompletableFuture < > ( ) ; hwt . newTimeout ( future :: complete , delay , timeUnit ) ; return future ; } catch ( Throwable t ) { return exceptionalFutu...
Return a future that completes with a timeout after a delay .
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private Collection < String > getS3PrefixesForTask ( S3Configuration s3Configuration , SingularityTaskId taskId , Optional < Long > startArg , Optional < Long > endArg , String group , SingularityUser user ) { Optional < SingularityTaskHistory > history = getTaskHistory ( taskId , user ) ; long start = taskId . getStar...
Generation of prefixes
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private Optional < String > getRequestGroupForTask ( final SingularityTaskId taskId , SingularityUser user ) { Optional < SingularityTaskHistory > maybeTaskHistory = getTaskHistory ( taskId , user ) ; if ( maybeTaskHistory . isPresent ( ) ) { SingularityRequest request = maybeTaskHistory . get ( ) . getTask ( ) . getTa...
Finding request group
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public void saveTaskUpdateForRetry ( SingularityTaskHistoryUpdate taskHistoryUpdate ) { String parentPath = ZKPaths . makePath ( SNS_TASK_RETRY_ROOT , taskHistoryUpdate . getTaskId ( ) . getRequestId ( ) ) ; if ( ! isChildNodeCountSafe ( parentPath ) ) { LOG . warn ( "Too many queued webhooks for path {}, dropping" , p...
Methods for use with sns poller
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private Optional < Long > getMaybeTaskLogReadOffset ( final String slaveHostname , final String fullPath , final Long logLength , Optional < SingularityTask > task ) { long offset = 0 ; long maxOffset = smtpConfiguration . get ( ) . getMaxTaskLogSearchOffset ( ) ; Optional < Pattern > maybePattern = getLogErrorRegex ( ...
Searches through the file looking for first error
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private MBeanPluginContext createMBeanPluginContext ( ) { return new MBeanPluginContext ( ) { public ObjectName registerMBean ( Object pMBean , String ... pOptionalName ) throws MalformedObjectNameException , NotCompliantMBeanException , InstanceAlreadyExistsException { return MBeanServerHandler . this . registerMBean ...
Delegate to internal objects
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private void initServerHandle ( Configuration pConfig , LogHandler pLogHandler , List < ServerDetector > pDetectors ) { serverHandle = detectServers ( pDetectors , pLogHandler ) ; if ( serverHandle != null ) { serverHandle . postDetect ( mBeanServerManager , pConfig , pLogHandler ) ; } }
Initialize the server handle .
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public Object dispatchRequest ( JsonRequestHandler pRequestHandler , JmxRequest pJmxReq ) throws InstanceNotFoundException , AttributeNotFoundException , ReflectionException , MBeanException , NotChangedException { serverHandle . preDispatch ( mBeanServerManager , pJmxReq ) ; if ( pRequestHandler . handleAllServersAtOn...
Dispatch a request to the MBeanServer which can handle it
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public final ObjectName registerMBean ( Object pMBean , String ... pOptionalName ) throws MalformedObjectNameException , NotCompliantMBeanException , InstanceAlreadyExistsException { synchronized ( mBeanHandles ) { MBeanServer server = ManagementFactory . getPlatformMBeanServer ( ) ; try { String name = pOptionalName !...
Register a MBean under a certain name to the platform MBeanServer
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public final void destroy ( ) throws JMException { synchronized ( mBeanHandles ) { List < JMException > exceptions = new ArrayList < JMException > ( ) ; List < MBeanHandle > unregistered = new ArrayList < MBeanHandle > ( ) ; for ( MBeanHandle handle : mBeanHandles ) { try { unregistered . add ( handle ) ; handle . serv...
Unregister all previously registered MBean . This is tried for all previously registered MBeans
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private void initMBean ( ) { try { registerMBean ( this , getObjectName ( ) ) ; } catch ( InstanceAlreadyExistsException exp ) { } catch ( MalformedObjectNameException e ) { throw new IllegalStateException ( "Internal Error: Own ObjectName " + getObjectName ( ) + " is malformed" , e ) ; } catch ( NotCompliantMBeanExcep...
Initialise this server handler and register as an MBean
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public static List < ServerDetector > lookupDetectors ( ) { List < ServerDetector > detectors = ServiceObjectFactory . createServiceObjects ( "META-INF/detectors-default" , "META-INF/detectors" ) ; detectors . add ( new FallbackServerDetector ( ) ) ; return detectors ; }
Lookup all registered detectors + a default detector
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private ServerHandle detectServers ( List < ServerDetector > pDetectors , LogHandler pLogHandler ) { for ( ServerDetector detector : pDetectors ) { try { ServerHandle info = detector . detect ( mBeanServerManager ) ; if ( info != null ) { return info ; } } catch ( Exception exp ) { pLogHandler . error ( "Error while us...
by a lookup mechanism queried and thrown away after this method
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private boolean hasComplexKeys ( TabularType pType ) { List < String > indexes = pType . getIndexNames ( ) ; CompositeType rowType = pType . getRowType ( ) ; for ( String index : indexes ) { if ( ! ( rowType . getType ( index ) instanceof SimpleType ) ) { return true ; } } return false ; }
Check whether all keys are simple types or not
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private Object convertTabularDataDirectly ( TabularData pTd , Stack < String > pExtraArgs , ObjectToJsonConverter pConverter ) throws AttributeNotFoundException { if ( ! pExtraArgs . empty ( ) ) { throw new IllegalArgumentException ( "Cannot use a path for converting tabular data with complex keys (" + pTd . getTabular...
Convert to a direct representation of the tabular data
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ObjectName findMatchingMBeanPattern ( ObjectName pName ) { for ( ObjectName pattern : patterns ) { if ( pattern . apply ( pName ) ) { return pattern ; } } return null ; }
Given a MBean name return a pattern previously added and which matches this MBean name . Note that patterns might not overlap since the order in which they are tried is undefined .
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private static ClassLoader createClassLoader ( File toolsJar ) throws MalformedURLException { final URL urls [ ] = new URL [ ] { toolsJar . toURI ( ) . toURL ( ) } ; if ( System . getSecurityManager ( ) == null ) { return new URLClassLoader ( urls , getParentClassLoader ( ) ) ; } else { return AccessController . doPriv...
Create a classloader and respect a security manager if installed
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public boolean authenticate ( HttpServletRequest pRequest ) { String auth = pRequest . getHeader ( "Authorization" ) ; if ( auth == null ) { return false ; } AuthorizationHeaderParser . Result authInfo = AuthorizationHeaderParser . parse ( auth ) ; return authInfo . isValid ( ) && doAuthenticate ( pRequest , authInfo )...
Authenticate the given request
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public static Result parse ( String pAuthInfo ) { StringTokenizer stok = new StringTokenizer ( pAuthInfo ) ; String method = stok . nextToken ( ) ; if ( ! HttpServletRequest . BASIC_AUTH . equalsIgnoreCase ( method ) ) { throw new IllegalArgumentException ( "Only BasicAuthentication is supported" ) ; } String b64Auth =...
Parse the HTTP authorization header
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public Object doHandleRequest ( MBeanServerConnection pServer , JmxReadRequest pRequest ) throws InstanceNotFoundException , AttributeNotFoundException , ReflectionException , MBeanException , IOException { checkRestriction ( pRequest . getObjectName ( ) , pRequest . getAttributeName ( ) ) ; return pServer . getAttribu...
Used for a request to a single attribute from a single MBean . Merging of MBeanServers is done one layer above .
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private List < String > filterAttributeNames ( MBeanServerExecutor pSeverManager , ObjectName pName , List < String > pNames ) throws IOException , ReflectionException , MBeanException , AttributeNotFoundException , InstanceNotFoundException { Set < String > attrs = new HashSet < String > ( getAllAttributesNames ( pSev...
Return only those attributes of an mbean which has one of the given names
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private List < String > resolveAttributes ( MBeanServerExecutor pServers , ObjectName pMBeanName , List < String > pAttributeNames ) throws IOException , ReflectionException , MBeanException , AttributeNotFoundException , InstanceNotFoundException { List < String > attributes = pAttributeNames ; if ( shouldAllAttribute...
Resolve attributes and look up attribute names if all attributes need to be fetched .
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private MBeanInfo getMBeanInfo ( MBeanServerExecutor pServerManager , ObjectName pObjectName ) throws IOException , ReflectionException , MBeanException , AttributeNotFoundException , InstanceNotFoundException { return pServerManager . call ( pObjectName , MBEAN_INFO_HANDLER ) ; }
Get the MBeanInfo from one of the provided MBeanServers
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private Object getAttribute ( MBeanServerExecutor pServerManager , ObjectName pMBeanName , String attribute ) throws MBeanException , ReflectionException , IOException , AttributeNotFoundException , InstanceNotFoundException { return pServerManager . call ( pMBeanName , MBEAN_ATTRIBUTE_READ_HANDLER , attribute ) ; }
Try multiple servers for fetching an attribute
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private List < String > getAllAttributesNames ( MBeanServerExecutor pServerManager , ObjectName pObjectName ) throws IOException , ReflectionException , MBeanException , AttributeNotFoundException , InstanceNotFoundException { MBeanInfo mBeanInfo = getMBeanInfo ( pServerManager , pObjectName ) ; List < String > ret = n...
Return a set of attributes as a map with the attribute name as key and their values as values
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public String getAttributeName ( ) { if ( attributeNames == null ) { return null ; } if ( isMultiAttributeMode ( ) ) { throw new IllegalStateException ( "Request contains more than one attribute (attrs = " + "" + attributeNames + "). Use getAttributeNames() instead." ) ; } return attributeNames . get ( 0 ) ; }
Get a single attribute name . If this request was initialized with more than one attribute this methods throws an exception .
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private void initAttribute ( Object pAttrval ) { if ( pAttrval instanceof String ) { attributeNames = EscapeUtil . split ( ( String ) pAttrval , EscapeUtil . CSV_ESCAPE , "," ) ; multiAttributeMode = attributeNames . size ( ) > 1 ; } else if ( pAttrval instanceof Collection ) { Collection < String > attributes = ( Coll...
initialize and detect multi attribute mode
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public static String combineToPath ( List < String > pParts ) { if ( pParts != null && pParts . size ( ) > 0 ) { StringBuilder buf = new StringBuilder ( ) ; Iterator < String > it = pParts . iterator ( ) ; while ( it . hasNext ( ) ) { String part = it . next ( ) ; buf . append ( escapePart ( part != null ? part : "*" )...
Combine a list of strings to a single path with proper escaping .
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public static List < String > parsePath ( String pPath ) { if ( pPath == null || pPath . equals ( "" ) || pPath . equals ( "/" ) ) { return null ; } return replaceWildcardsWithNull ( split ( pPath , PATH_ESCAPE , "/" ) ) ; }
Parse a string path and return a list of split up parts .
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public static Stack < String > reversePath ( List < String > pathParts ) { Stack < String > pathStack = new Stack < String > ( ) ; if ( pathParts != null ) { for ( int i = pathParts . size ( ) - 1 ; i >= 0 ; i -- ) { pathStack . push ( pathParts . get ( i ) ) ; } } return pathStack ; }
Reverse path and return as a stack . First path element is on top of the stack .
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public static String escape ( String pArg , String pEscape , String pDelimiter ) { return pArg . replaceAll ( pEscape , pEscape + pEscape ) . replaceAll ( pDelimiter , pEscape + pDelimiter ) ; }
Escape the delimiter in an argument with the given escape char .
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private static Pattern [ ] createSplitPatterns ( String pEscape , String pDel ) { return new Pattern [ ] { Pattern . compile ( "(.*?)" + "(?:" + "(?<!" + pEscape + ")((?:" + pEscape + ".)*)" + pDel + "|" + "$" + ")" , Pattern . DOTALL ) , Pattern . compile ( pEscape + "(.)" , Pattern . DOTALL ) } ; }
Create a split pattern for a given delimiter
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@ SuppressWarnings ( "PMD.ExceptionAsFlowControl" ) public static void main ( String ... args ) { OptionsAndArgs options ; try { options = new OptionsAndArgs ( CommandDispatcher . getAvailableCommands ( ) , args ) ; VirtualMachineHandler vmHandler = new VirtualMachineHandler ( options ) ; CommandDispatcher dispatcher =...
We use processing exception thrown here for better error reporting not flow control .
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public Object prepareValue ( String pExpectedClassName , Object pValue ) { if ( pValue == null ) { return null ; } else { Class expectedClass = ClassUtil . classForName ( pExpectedClassName ) ; Object param = null ; if ( expectedClass != null ) { param = prepareValue ( expectedClass , pValue ) ; } if ( param == null ) ...
Prepare a value from a either a given object or its string representation . If the value is already assignable to the given class name it is returned directly .
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private Object prepareForDirectUsage ( Class expectedClass , Object pArgument ) { Class givenClass = pArgument . getClass ( ) ; if ( expectedClass . isArray ( ) && List . class . isAssignableFrom ( givenClass ) ) { return convertListToArray ( expectedClass , ( List ) pArgument ) ; } else { return expectedClass . isAssi...
Returns null if a string conversion should happen
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public Object convertFromString ( String pType , String pValue ) { String value = convertSpecialStringTags ( pValue ) ; if ( value == null ) { return null ; } if ( pType . startsWith ( "[" ) && pType . length ( ) >= 2 ) { return convertToArray ( pType , value ) ; } Parser parser = PARSER_MAP . get ( pType ) ; if ( pars...
Deserialize a string representation to an object for a given type
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private Object convertToArray ( String pType , String pValue ) { String t = pType . substring ( 1 , 2 ) ; Class valueType ; if ( t . equals ( "L" ) ) { String oType = pType . substring ( 2 , pType . length ( ) - 1 ) . replace ( '/' , '.' ) ; valueType = ClassUtil . classForName ( oType ) ; if ( valueType == null ) { th...
Convert an array
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private Object convertListToArray ( Class pType , List pList ) { Class valueType = pType . getComponentType ( ) ; Object ret = Array . newInstance ( valueType , pList . size ( ) ) ; int i = 0 ; for ( Object value : pList ) { if ( value == null ) { if ( ! valueType . isPrimitive ( ) ) { Array . set ( ret , i ++ , null )...
Convert a list to an array of the given type
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public Object dispatchRequest ( JmxRequest pJmxReq ) throws InstanceNotFoundException , AttributeNotFoundException , ReflectionException , MBeanException , IOException , NotChangedException { JsonRequestHandler handler = requestHandlerManager . getRequestHandler ( pJmxReq . getType ( ) ) ; JMXConnector connector = null...
Call a remote connector based on the connection information contained in the request .
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protected Map < String , Object > prepareEnv ( Map < String , String > pTargetConfig ) { if ( pTargetConfig == null || pTargetConfig . size ( ) == 0 ) { return null ; } Map < String , Object > ret = new HashMap < String , Object > ( pTargetConfig ) ; String user = ( String ) ret . remove ( "user" ) ; String password = ...
Override this if a special environment setup is required for JSR - 160 connection
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private boolean acceptTargetUrl ( String urlS ) { if ( whiteList != null ) { return checkPattern ( whiteList , urlS , true ) ; } if ( blackList != null ) { return checkPattern ( blackList , urlS , false ) ; } return true ; }
Whether a given JMX Service URL is acceptable
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public < T extends J4pResponse > List < T > getResponses ( ) { List < T > ret = new ArrayList < T > ( ) ; for ( Object entry : results ) { if ( entry instanceof J4pResponse ) { ret . add ( ( T ) entry ) ; } } return ret ; }
Get the a list of responses for successful requests .
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public void addMBeanServers ( Set < MBeanServerConnection > servers ) { try { Class locatorClass = Class . forName ( "org.jboss.mx.util.MBeanServerLocator" ) ; Method method = locatorClass . getMethod ( "locateJBoss" ) ; servers . add ( ( MBeanServer ) method . invoke ( null ) ) ; } catch ( ClassNotFoundException e ) {...
Special handling for JBoss
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private static byte [ ] decodeBytes ( byte [ ] pInBytes ) { byte [ ] decodabet = DECODABET ; int len34 = pInBytes . length * 3 / 4 ; byte [ ] outBuff = new byte [ len34 ] ; int outBuffPosn = 0 ; byte [ ] b4 = new byte [ 4 ] ; int b4Posn = 0 ; int i = 0 ; byte sbiCrop = 0 ; byte sbiDecode = 0 ; for ( i = 0 ; i < 0 + pIn...
Do the conversion to bytes
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private static void verifyArguments ( byte [ ] source , int srcOffset , byte [ ] destination , int destOffset ) { if ( source == null ) { throw new IllegalArgumentException ( "Source array was null." ) ; } if ( destination == null ) { throw new IllegalArgumentException ( "Destination array was null." ) ; } if ( srcOffs...
Check for argument validity
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public static boolean shouldBeUsed ( String authMode ) { return authMode != null && ( authMode . equalsIgnoreCase ( AUTHMODE_SERVICE_ALL ) || authMode . equalsIgnoreCase ( AUTHMODE_SERVICE_ANY ) ) ; }
Check whether for the given authmode an instance of this context should be used ( i . e . when the auth - mode is service - any or service - all
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private boolean checkForMapKey ( TabularType pType ) { List < String > indexNames = pType . getIndexNames ( ) ; return indexNames . size ( ) == 1 && indexNames . contains ( TD_KEY_KEY ) && pType . getRowType ( ) . getType ( TD_KEY_KEY ) instanceof SimpleType ; }
The tabular data representing a map must have a single index named key which must be a simple type
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private boolean checkForFullTabularDataRepresentation ( JSONObject pValue , TabularType pType ) { if ( pValue . containsKey ( "indexNames" ) && pValue . containsKey ( "values" ) && pValue . size ( ) == 2 ) { Object jsonVal = pValue . get ( "indexNames" ) ; if ( ! ( jsonVal instanceof JSONArray ) ) { throw new IllegalAr...
Check for a full table data representation and do some sanity checks
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private TabularData convertTabularDataFromFullRepresentation ( JSONObject pValue , TabularType pType ) { JSONAware jsonVal ; jsonVal = ( JSONAware ) pValue . get ( "values" ) ; if ( ! ( jsonVal instanceof JSONArray ) ) { throw new IllegalArgumentException ( "Values for tabular data of type " + pType + " must given as J...
Convert complex representation containing indexNames and values
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public static InetAddress getLocalAddress ( ) throws UnknownHostException , SocketException { InetAddress addr = InetAddress . getLocalHost ( ) ; NetworkInterface nif = NetworkInterface . getByInetAddress ( addr ) ; if ( addr . isLoopbackAddress ( ) || addr instanceof Inet6Address || nif == null ) { InetAddress lookedU...
Get a local IP4 Address preferable a non - loopback address which is bound to an interface .
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public static InetAddress findLocalAddressViaNetworkInterface ( ) { Enumeration < NetworkInterface > networkInterfaces ; try { networkInterfaces = NetworkInterface . getNetworkInterfaces ( ) ; } catch ( SocketException e ) { return null ; } while ( networkInterfaces . hasMoreElements ( ) ) { NetworkInterface nif = netw...
returns null if none has been found
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public static boolean isMulticastSupported ( NetworkInterface pNif ) { return pNif != null && checkMethod ( pNif , isUp ) && checkMethod ( pNif , supportsMulticast ) ; }
Check whether the given interface supports multicast and is up
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public static List < InetAddress > getMulticastAddresses ( ) throws SocketException { Enumeration < NetworkInterface > nifs = NetworkInterface . getNetworkInterfaces ( ) ; List < InetAddress > ret = new ArrayList < InetAddress > ( ) ; while ( nifs . hasMoreElements ( ) ) { NetworkInterface nif = nifs . nextElement ( ) ...
Get all local addresses on which a multicast can be send
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private static boolean useInetAddress ( NetworkInterface networkInterface , InetAddress interfaceAddress ) { return checkMethod ( networkInterface , isUp ) && checkMethod ( networkInterface , supportsMulticast ) && ! ( interfaceAddress instanceof Inet6Address ) && ! interfaceAddress . isLoopbackAddress ( ) ; }
Only use the given interface on the given network interface if it is up and supports multicast
34,285
private static Boolean checkMethod ( NetworkInterface iface , Method toCheck ) { if ( toCheck != null ) { try { return ( Boolean ) toCheck . invoke ( iface , ( Object [ ] ) null ) ; } catch ( IllegalAccessException e ) { return false ; } catch ( InvocationTargetException e ) { return false ; } } return true ; }
Call a method and return the result as boolean . In case of problems return false .
34,286
private static InetAddress findLocalAddressListeningOnPort ( String pHost , int pPort ) throws UnknownHostException , SocketException { InetAddress address = InetAddress . getByName ( pHost ) ; if ( address . isLoopbackAddress ( ) ) { InetAddress localAddress = getLocalAddress ( ) ; if ( ! localAddress . isLoopbackAddr...
Check for an non - loopback local adress listening on the given port
34,287
private static boolean isPortOpen ( InetAddress pAddress , int pPort ) { Socket socket = null ; try { socket = new Socket ( ) ; socket . setReuseAddress ( true ) ; SocketAddress sa = new InetSocketAddress ( pAddress , pPort ) ; socket . connect ( sa , 200 ) ; return socket . isConnected ( ) ; } catch ( IOException e ) ...
Check a port by connecting to it . Try only 200ms .
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private static String getProcessId ( ) { final String jvmName = ManagementFactory . getRuntimeMXBean ( ) . getName ( ) ; final int index = jvmName . indexOf ( '@' ) ; return index < 0 ? jvmName : jvmName . substring ( 0 , index ) ; }
Hack for finding the process id . Used in creating an unique agent id .
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public static String dumpLocalNetworkInfo ( ) throws UnknownHostException , SocketException { StringBuffer buffer = new StringBuffer ( ) ; InetAddress addr = InetAddress . getLocalHost ( ) ; buffer . append ( "Localhost: " + getAddrInfo ( addr ) + "\n" ) ; Enumeration < NetworkInterface > nifs = NetworkInterface . getN...
Get the local network info as a string
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protected void registerForMBeanNotifications ( ) { Set < MBeanServerConnection > servers = getMBeanServers ( ) ; Exception lastExp = null ; StringBuilder errors = new StringBuilder ( ) ; for ( MBeanServerConnection server : servers ) { try { JmxUtil . addMBeanRegistrationListener ( server , this , null ) ; } catch ( Il...
Add this executor as listener for MBeanServer notification so that we can update the local timestamp for when the set of registered MBeans has changed last .
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private Exception updateErrorMsg ( StringBuilder pErrors , Exception exp ) { pErrors . append ( exp . getClass ( ) ) . append ( ": " ) . append ( exp . getMessage ( ) ) . append ( "\n" ) ; return exp ; }
Helper method for adding the exception for an appropriate error message
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public static void updateWithCaPem ( KeyStore pTrustStore , File pCaCert ) throws IOException , CertificateException , KeyStoreException , NoSuchAlgorithmException { InputStream is = new FileInputStream ( pCaCert ) ; try { CertificateFactory certFactory = CertificateFactory . getInstance ( "X509" ) ; X509Certificate ce...
Update a keystore with a CA certificate
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public static void updateWithServerPems ( KeyStore pKeyStore , File pServerCert , File pServerKey , String pKeyAlgo , char [ ] pPassword ) throws IOException , CertificateException , NoSuchAlgorithmException , InvalidKeySpecException , KeyStoreException { InputStream is = new FileInputStream ( pServerCert ) ; try { Cer...
Update a key store with the keys found in a server PEM and its key file .
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public static void updateWithSelfSignedServerCertificate ( KeyStore pKeyStore ) throws NoSuchProviderException , NoSuchAlgorithmException , IOException , InvalidKeyException , CertificateException , SignatureException , KeyStoreException { final Object x500Name ; final Object [ ] certAttributes = { "Jolokia Agent " + V...
Update the given keystore with a self signed server certificate . This can be used if no server certificate is provided from the outside and no SSL verification is used by the client .
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public Object setObjectValue ( StringToObjectConverter pConverter , Object pInner , String pIndex , Object pValue ) throws IllegalAccessException , InvocationTargetException { List list = ( List ) pInner ; int idx ; try { idx = Integer . parseInt ( pIndex ) ; } catch ( NumberFormatException exp ) { throw new IllegalArg...
Set a value within a list
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static RequestCreator < JmxListRequest > newCreator ( ) { return new RequestCreator < JmxListRequest > ( ) { public JmxListRequest create ( Stack < String > pStack , ProcessingParameters pParams ) throws MalformedObjectNameException { return new JmxListRequest ( prepareExtraArgs ( pStack ) , pParams ) ; } public JmxLis...
Create a new creator used for creating list requests
34,297
private static void awaitServerInitialization ( JvmAgentConfig pConfig , final Instrumentation instrumentation ) { List < ServerDetector > detectors = MBeanServerHandler . lookupDetectors ( ) ; for ( ServerDetector detector : detectors ) { detector . jvmAgentStartup ( instrumentation ) ; } }
Lookup the server detectors and notify detector about the JVM startup
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public void start ( boolean pLazy ) { Restrictor restrictor = createRestrictor ( ) ; backendManager = new BackendManager ( configuration , logHandler , restrictor , pLazy ) ; requestHandler = new HttpRequestHandler ( configuration , backendManager , logHandler ) ; if ( listenForDiscoveryMcRequests ( configuration ) ) {...
Start the handler
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public void start ( boolean pLazy , String pUrl , boolean pSecured ) { start ( pLazy ) ; AgentDetails details = backendManager . getAgentDetails ( ) ; details . setUrl ( pUrl ) ; details . setSecured ( pSecured ) ; }
Start the handler and remember connection details which are useful for discovery messages