Python paho.mqtt.client.MQTT_ERR_NO_CONN Examples

The following are 6 code examples of paho.mqtt.client.MQTT_ERR_NO_CONN(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module paho.mqtt.client , or try the search function .
Example #1
Source File: mqtt2sql.py    From mqtt2sql with GNU General Public License v3.0 5 votes vote down vote up 
def loop_forever(self):
        """
        Main MQTT to SQL loop
        does not return until an error occurs
        """
        global EXIT_CODE    # pylint: disable=global-statement

        while True:
            # Main loop as long as no error occurs
            ret = mqtt.MQTT_ERR_SUCCESS
            while not self.userdata['haveresponse'] and ret == mqtt.MQTT_ERR_SUCCESS:
                try:
                    ret = self.mqttc.loop()
                except Exception as err:    # pylint: disable=broad-except
                    log(0, 'ERROR: loop() - {}'.format(err))
                    time.sleep(0.1)
                if EXIT_CODE != ExitCode.OK:
                    sys.exit(EXIT_CODE)
            if ret not in (
                    mqtt.MQTT_ERR_AGAIN,
                    mqtt.MQTT_ERR_PROTOCOL,
                    mqtt.MQTT_ERR_INVAL,
                    mqtt.MQTT_ERR_NO_CONN,
                    mqtt.MQTT_ERR_CONN_REFUSED,
                    mqtt.MQTT_ERR_NOT_FOUND,
                    mqtt.MQTT_ERR_TLS,
                    mqtt.MQTT_ERR_PAYLOAD_SIZE,
                    mqtt.MQTT_ERR_NOT_SUPPORTED,
                    mqtt.MQTT_ERR_AUTH,
                    mqtt.MQTT_ERR_ERRNO):
                # disconnect from server
                log(0, 'Remote disconnected from MQTT - [{}] {})'.format(ret, mqtt.error_string(ret)))
                try:
                    ret = self.mqttc.reconnect()
                    log(0, 'MQTT reconnected - [{}] {})'.format(ret, mqtt.error_string(ret)))
                except Exception as err:    # pylint: disable=broad-except
                    SignalHandler.exitus(ExitCode.MQTT_CONNECTION_ERROR, '{}:{} failed - [{}] {}'.format(self._args.mqtt_host, self._args.mqtt_port, ret, mqtt.error_string(err)))
            else:
                SignalHandler.exitus(ExitCode.MQTT_CONNECTION_ERROR, '{}:{} failed: - [{}] {}'.format(self._args.mqtt_host, self._args.mqtt_port, ret, mqtt.error_string(ret)))
Example #2
Source File: mqtt.py    From chromecast-mqtt-connector with Mozilla Public License 2.0 5 votes vote down vote up 
def subscribe(self, topic):
        self.logger.debug("subscribing to topic %s" % topic)
        result = self.mqtt.subscribe(topic)

        if result[0] == MQTT_ERR_NO_CONN:
            self.logger.warning("no connection while trying to subscribe to topic %s" % topic)
            return False

        return result[0] == MQTT_ERR_SUCCESS
Example #3
Source File: mqtt.py    From chromecast-mqtt-connector with Mozilla Public License 2.0 5 votes vote down vote up 
def unsubscribe(self, topic):
        self.logger.debug("unsubscribing from topic %s" % topic)
        result = self.mqtt.unsubscribe(topic)

        if result[0] == MQTT_ERR_NO_CONN:
            self.logger.warning("no connection while trying to unsubscribe from topic %s" % topic)
            return False

        return result[0] == MQTT_ERR_SUCCESS
Example #4
Source File: mqtt.py    From chromecast-mqtt-connector with Mozilla Public License 2.0 5 votes vote down vote up 
def _internal_send_message(self, topic, payload, queue):
        self.logger.debug("sending topic %s with value \"%s\"" % (topic, payload))
        result = self.mqtt.publish(topic, payload, retain=True)

        if result[0] == MQTT_ERR_NO_CONN and queue:
            self.logger.debug("no connection, saving message with topic %s to queue" % topic)
            self.queue.append([topic, payload])
        elif result[0] != MQTT_ERR_SUCCESS:
            self.logger.warning("failed sending message %s, mqtt error %s" % (topic, result))
            return False

        return True
Example #5
Source File: mqttConn.py    From sensorReporter with Apache License 2.0 5 votes vote down vote up 
def publish(self, message, pubTopic):
    """Called by others to publish a message to the publish topic"""

    try:
      rval = self.client.publish(pubTopic, message)
      if rval[0] == mqtt.MQTT_ERR_NO_CONN:
        self.logger.error("Error publishing update: " + message +  " to " + pubTopic)
        self.comms.reconnect() # try to reconnect again
      else:
        self.logger.info("Published message " + message + " to " + pubTopic)
    except:
      print "Unexpected error publishing message:", sys.exc_info()[0]
Example #6
Source File: frontend.py    From mopidy-mqtt with Apache License 2.0 5 votes vote down vote up 
def publish(self, topic, state):
        full_topic = self.config['topic'] + topic
        try:
            rc = self.mqttclient.publish(full_topic, state)
            if rc[0] == mqtt.MQTT_ERR_NO_CONN:            
                logger.warn("Error during publish: MQTT_ERR_NO_CONN")
            else:
                logger.info("Sent " + state + " to " + full_topic)
        except Exception as e:
            logger.error('Unable to send', exc_info=True)