def handle(self, msg):
"""\
Handle a message and call the appropriate method.
:param msg: A parsed message object.
:returns: Whether the call was successful.
"""
try:
handler = getattr(self,
'handle_v' + msg.mversion.replace('.', '_'), None)
if not handler:
raise LXError("unimplemented version processor")
prev_item = IDStoreItem()
if msg.mid in settings.ID_STORE:
prev_item = settings.ID_STORE[msg.mid]
settings.ID_STORE[msg.mid] = IDStoreItem(msg, prev_item.callback)
try:
prev_item.callback(msg, prev_item.msg)
except:
logger.exception("error occurred in callback")
return handler(msg, prev_item.msg)
except:
logger.exception("error occurred in message processor")
return False
def _run_device(self):
try:
self.jobs = []
self.thpool = futures.ThreadPoolExecutor(max_workers=1)
self.client_sock = secure_socket(
dealer_socket, self.private_key, self.public_key, self.server_key, self.context
)
self.client_sock.monitor(self.state_endpoint)
self.client_sock.connect(settings.EXCHANGE_ENDPOINT)
self.client_state_sock = pair_socket(self.context)
self.client_state_sock.connect(self.state_endpoint)
self.publisher_sock = secure_socket(
sub_socket, self.private_key, self.public_key, self.server_key, self.context
)
self.publisher_sock.connect(settings.EXCHANGE_PUBLISHER_ENDPOINT)
self.publisher_sock.subscribe = b""
self.cmd_sock = router_socket(self.context)
self.cmd_sock.bind(self.cmd_endpoint)
self.poller = zmq.Poller()
self.poller.register(self.client_sock, zmq.POLLIN)
self.poller.register(self.client_state_sock, zmq.POLLIN)
self.poller.register(self.publisher_sock, zmq.POLLIN)
self.poller.register(self.cmd_sock, zmq.POLLIN)
# Context's I/O loop
self.__io_loop()
except:
logger.exception("error occurred in context I/O loop")
finally:
self.client_sock.close()
self.client_state_sock.close()
self.publisher_sock.close()
self.cmd_sock.close()
self.thpool.shutdown()
def handle_state_event(self, state):
"""\
Handle a state event and call the appropriate method.
:param state: The resulted dictionary from calling
:func:`zmq.utils.monitor.parse_monitor_message`.
:returns: Whether the call was successful.
"""
event, endpoint = state['event'], state['endpoint']
try:
if event == zmq.EVENT_CONNECTED:
return self.handle_event_connected(endpoint)
elif event == zmq.EVENT_CONNECT_RETRIED:
return self.handle_event_retried(endpoint, state['value'])
elif event == zmq.EVENT_CLOSED:
return self.handle_event_closed(endpoint)
elif event == zmq.EVENT_MONITOR_STOPPED:
return self.handle_event_monitor_stopped(endpoint)
else:
return True # XXX: We are not interested in the other events
except:
logger.exception("error occurred in message processor")
return False
