pywattnode/mqttClient.py at master · amm042/pywattnode · GitHub

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import logging
import paho.mqtt.client as mq
import simplejson as json
import datetime


class mqClient():
    def __init__(self, config, serno):

        self.log = logging.getLogger(__name__)
        self.topic = 'wn_{}/raw'.format(serno)

        if config.has_section('mqtt'):
            self.broker_url = config.get('mqtt', 'broker')
            self.log.info("MQTT logging enabled to broker: {}".format(self.broker_url))

            self.client = mq.Client()
            self.client.on_connect = self.on_connect
            self.client.loop_start()
            self.client.connect_async(self.broker_url)

        else:
            self.client = None
            self.broker_url = None
            self.log.info("MQTT not enabled (set [mqtt] broker = ... )")


    def on_connect(self, client, userdata, flags, rc):

        self.log.info("MQTT connected with result: {}".format(rc))

    def close(self):
        if self.client:
            self.client.loop_stop()
            self.client = None

    def pub(self, data):
        if self.client:

            s = json.dumps(data, default=datetime.datetime.isoformat)
            self.log.debug("send: " + s)
            self.client.publish(self.topic, s)