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1261,"def bind(self, devices_to_bind):
"""""" This function allows an entity to list the devices to subscribe for data. This function must be called
at least once, before doing a subscribe. Subscribe function will listen to devices that are bound here.
Args:
devices_to_bind (list): an array of devices to listen to.
Example bind([""test100"",""testDemo""])
""""""
if self.entity_api_key == """":
return {'status': 'failure', 'response': 'No API key found in request'}
url = self.base_url + ""api/0.1.0/subscribe/bind""
headers = {""apikey"": self.entity_api_key}
data = {
""exchange"": ""amq.topic"",
""keys"": devices_to_bind,
""queue"": self.entity_id
}
with self.no_ssl_verification():
r = requests.post(url, json=data, headers=headers)
response = dict()
if ""No API key"" in str(r.content.decode(""utf-8"")):
response[""status""] = ""failure""
r = json.loads(r.content.decode(""utf-8""))['message']
elif 'bind queue ok' in str(r.content.decode(""utf-8"")):
response[""status""] = ""success""
r = r.content.decode(""utf-8"")
else:
response[""status""] = ""failure""
r = r.content.decode(""utf-8"")
response[""response""] = str(r)
return response"
1262,"def unbind(self, devices_to_unbind):
"""""" This function allows an entity to unbound devices that are already bound.
Args:
devices_to_unbind (list): an array of devices that are to be unbound ( stop listening)
Example unbind([""test10"",""testDemo105""])
""""""
if self.entity_api_key == """":
return {'status': 'failure', 'response': 'No API key found in request'}
url = self.base_url + ""api/0.1.0/subscribe/unbind""
headers = {""apikey"": self.entity_api_key}
data = {
""exchange"": ""amq.topic"",
""keys"": devices_to_unbind,
""queue"": self.entity_id
}
with self.no_ssl_verification():
r = requests.delete(url, json=data, headers=headers)
print(r)
response = dict()
if ""No API key"" in str(r.content.decode(""utf-8"")):
response[""status""] = ""failure""
r = json.loads(r.content.decode(""utf-8""))['message']
elif 'unbind' in str(r.content.decode(""utf-8"")):
response[""status""] = ""success""
r = r.content.decode(""utf-8"")
else:
response[""status""] = ""failure""
r = r.content.decode(""utf-8"")
response[""response""] = str(r)
return response"
1263,"def subscribe(self, devices_to_bind=[]):
"""""" This function allows an entity to subscribe for data from the devices specified in the bind operation. It
creates a thread with an event loop to manager the tasks created in start_subscribe_worker.
Args:
devices_to_bind (list): an array of devices to listen to
""""""
if self.entity_api_key == """":
return {'status': 'failure', 'response': 'No API key found in request'}
self.bind(devices_to_bind)
loop = asyncio.new_event_loop()
t1 = threading.Thread(target=self.start_subscribe_worker, args=(loop,))
t1.daemon = True
t1.start()"
1264,"def start_subscribe_worker(self, loop):
"""""" Switch to new event loop as a thread and run until complete. """"""
url = self.base_url + ""api/0.1.0/subscribe""
task = loop.create_task(self.asynchronously_get_data(url + ""?name={0}"".format(self.entity_id)))
asyncio.set_event_loop(loop)
loop.run_until_complete(task)
self.event_loop = loop"
1265,"async def asynchronously_get_data(self, url):
"""""" Asynchronously get data from Chunked transfer encoding of https://smartcity.rbccps.org/api/0.1.0/subscribe.
(Only this function requires Python 3. Rest of the functions can be run in python2.
Args:
url (string): url to subscribe
""""""
headers = {""apikey"": self.entity_api_key}
try:
async with aiohttp.ClientSession(connector=aiohttp.TCPConnector(verify_ssl=False)) as session:
async with session.get(url, headers=headers, timeout=3000) as response:
while True: # loop over for each chunk of data
chunk = await response.content.readchunk()
if not chunk: