Files
chargeman/mqttpublisher.py

121 lines
4.5 KiB
Python

import paho.mqtt.client as mqtt
import logging
import time
from mqtttopic import *
import victronclient
import dbus
logger = logging.getLogger('main')
class publisher:
def __init__(self):
self.client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION1)
self.sensors = {}
self.mqtt_discovery_next_time = 0
self.client.on_connect = self.on_connect
while True:
try:
self.client.connect(broker,port, 60)
self.client.loop_start()
break
except Exception as e:
logger.info("Unable to connect to mqtt: {!r}".format(e))
time.sleep(5)
def dbus_to_python(self,data):
'''
convert dbus data types to python native data types
'''
if isinstance(data, dbus.String):
data = str(data)
elif isinstance(data, dbus.Boolean):
data = bool(data)
elif isinstance(data, dbus.Int64):
data = int(data)
elif isinstance(data, dbus.Int32):
data = int(data)
elif isinstance(data, dbus.Double):
data = float(data)
elif isinstance(data, dbus.Array):
data = [self.dbus_to_python(value) for value in data]
elif isinstance(data, dbus.Dictionary):
new_data = dict()
for key in data.keys():
new_data[self.dbus_to_python(key)] = self.dbus_to_python(data[key])
data = new_data
return data
def check_update_value(self, name, value):
value = self.dbus_to_python(value)
if not name in self.sensors:
self.sensors[name] = {'value': None, 'writable' : False}
if not (type(value) is int or type(value) is str or type(value) is float or value is None):
print ("Value {} for {} is not accepted (type {})".format(value, name,type(value)))
return
if not name in self.sensors or self.sensors[name]['value'] != value:
self.client.publish(topic_base + name + topic_state_postfix, value,retain=True)
self.sensors[name]['value'] = value
def publish_controller(self, controller):
self.check_update_value('chargemode', controller.get_chargemode_int())
self.check_update_value('chargevalue', controller.get_chargevalue())
self.check_update_value('actual_returndelivery', round(controller.get_battery_total_net_delivery()/ 1000,2))
self.check_update_value('actual_consumption', round(controller.get_battery_total_net_usage()/ 1000,2))
self.check_update_value('gridpower', controller.victronconn.get_power_usage())
self.check_update_value('soc', controller.victronconn.get_soc())
self.check_update_value('setpoint', controller.victronconn.get_setpoint())
self.check_update_value('battery_current', controller.victronconn.get_battery_current())
self.check_update_value('battery_power', controller.victronconn.get_battery_power())
self.check_update_value('battery_max_chargecurrent', controller.victronconn.get_battery_max_chargecurrent())
def publish_battery(self, battery: victronclient.battery):
self.check_update_value(battery.name + '_soc', battery.get_soc())
self.check_update_value(battery.name + '_power', battery.get_power())
self.check_update_value(battery.name + '_current', battery.get_current())
self.check_update_value(battery.name + '_temperature', battery.get_temperature())
self.check_update_value(battery.name + '_sum', battery.get_voltage_sum())
self.check_update_value(battery.name + '_low', battery.get_voltage_lowest())
self.check_update_value(battery.name + '_high', battery.get_voltage_highest())
self.check_update_value(battery.name + '_diff', battery.get_voltage_diff())
def loop(self):
pass
#rc = self.client.loop(timeout=0.1)
#if rc != 0:
# if not self.client.is_connected:
# logger.warning("MQTT publisher connection disconnected. Reconnecting...")
# self.client.reconnect()
#if self.mqtt_discovery_next_time < time.time():
# self.mqtt_discovery_next_time = time.time() + 60
# self.announce()
# The callback for when the client receives a CONNACK response from the server.
def on_connect(self,client, userdata, flags, rc):
logger.info("Connected publisher to mqtt with result code "+str(rc))