def main(args=None): global old_config, config_file, retain_hack_topic, hostname, port if args is None: parser = argparse.ArgumentParser(description="Config generator/updater for wb-mqtt-mbgate") parser.add_argument("-c", "--config", help="config file to create/update", type=str, default="") parser.add_argument("-f", "--force-create", help="force creating new config file", action="store_true") parser.add_argument("-s", "--server", help="MQTT server hostname", type=str, default="localhost") parser.add_argument("-p", "--port", help="MQTT server port", type=int, default=1883) args = parser.parse_args() if args.config == "": config_file = sys.stdout else: if not args.force_create: try: old_config = json.loads(open(args.config, "r").read()) if "remap_values" in old_config["registers"]: global remap_values remap_values = old_config["registers"]["remap_values"] del old_config["registers"]["remap_values"] except: print "Failed to open config" pass config_file = open(args.config, "w") client_id = str(time.time()) + str(random.randint(0, 100000)) client = Mosquitto(client_id) hostname = args.server port = args.port client.connect(args.server, args.port) client.on_message = mqtt_on_message client.subscribe("/devices/+/controls/+/meta/+") # apply retained-hack to be sure that all data is received retain_hack_topic = "/tmp/%s/retain_hack" % (client_id) client.subscribe(retain_hack_topic) client.publish(retain_hack_topic, '1') while 1: rc = client.loop() if rc != 0: break
def subscribe(self, topics): """ Publishes a value to a given topic, uses pre-loaded values for QoS and retain """ if not isinstance(topics, list): topics = [topics] for topic in topics: rc, mid = Mosquitto.subscribe(self, topic, 0) self._subscriptions[mid] = topic self.log(logging.INFO, "Sent subscription request to topic %s" % topic)
def main(): """start mqtt server and subscribe the topic""" # check the number of arguments if len(argv) != 6: print "usage: %s [hostname] [port] [keepalive] [client_id] [topic]" % argv[ 0] exit(1) try: mqtt_client = Mosquitto(argv[4]) # set callback mqtt_client.on_message = cb_on_message # connect to MQTT broker # client.connect(hostname, port=1883, keepalive=60) mqtt_client.connect(argv[1], argv[2], int(argv[3])) # subscribe the topic mqtt_client.subscribe(argv[5]) print "%s subscribing topic '%s' from %s:%s" % (argv[4], argv[5], argv[1], argv[2]) while True: # call loop method frequently # client.loop(timeout=-1); 0 to return immediately; -1 to return # after 1 second. result = mqtt_client.loop() if result != 0: # rc != 0; loop failed print "Loop failed (%s), disconnecting..." % result mqtt_client.disconnect() break except KeyboardInterrupt: # disconnect from the broker mqtt_client.disconnect() print "Disconnected..."
def setup(self, hostname, port): mq = Mosquitto(self.name) mq.connect(hostname, port, 60) mq.subscribe('chat') mq.subscribe('rates/AUDUSD') mq.subscribe('rates/USDCHF') mq.subscribe('rates/EURUSD') mq.subscribe('rates/PLNUSD') mq.subscribe('rates/GBPUSD') mq.on_message = self.message mq.on_connect = connect_cb mq.on_subscribe = subscribe_cb mq.on_unsubscribe = unsubscribe_cb mq.on_publish = publish_cb #mq.on_message = message_cb mq.on_disconnect = disconnect_cb self.mq = mq Clock.schedule_interval(lambda *x: mq.loop(), .01)
#!/usr/bin/python from mosquitto import Mosquitto publish_key = "demo" subscribe_key = "demo" channel_name = "F" client_uuid = "2fb96def5" mqtt_hostname = "mqtt.pubnub.com" mqtt_connect = publish_key + "/" + subscribe_key + "/" + client_uuid mqtt_topic = publish_key + "/" + subscribe_key + "/" + channel_name mosq_object = Mosquitto(mqtt_connect) def on_message(mosq, obj, msg): print(msg.payload, msg.topic) mosq_object.on_message = on_message mosq_object.connect(mqtt_hostname) mosq_object.publish(mqtt_topic, "Hello World!") mosq_object.subscribe(mqtt_topic) mosq_object.loop_forever()