Integrated Logging to /var/log/app.log
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Ollo
parent
3ca17eb4cf
commit
83e3131ccb
@ -4,6 +4,7 @@ import sys
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from paho.mqtt import client as mqtt_client
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import os
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import serial
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import logging
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MAXIMUM_COMMUNICATION_FAILURE=1000
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@ -11,35 +12,57 @@ TEMPERATUR_MIN_DIFFERENCE = 2
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TARGET_MIN_DIFFERENCE = 1
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RPM_MIN_DIFFERENCE = 50
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COMMAND_PREFIX = "ollpe"
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# MQTT Settings
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mqtt_server=os.environ['MQTT_SERVER']
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mqtt_topic=os.environ['MQTT_TOPIC']
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# SERIAL Port
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serial_device=os.environ['SERIAL_DEVICE']
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# Logging
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try:
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if (os.environ['PY_LOGGING']):
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customLevel = os.environ['PY_LOGGING'].upper()
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except (KeyError):
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customLevel = 'WARNING'
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logging.basicConfig(
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level=customLevel,
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filename="/var/log/app.log",
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filemode="w",
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format="%(asctime)s - %(levelname)s - %(message)s"
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)
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logging.debug("Start Serial connect")
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# Start Serial communication
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ser = serial.Serial(serial_device, 115200, timeout=1) # open serial port
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if (ser is None):
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logging.error("Cannot open device" + str(serial_device))
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sys.exit()
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# The callback for when a PUBLISH message is received from the server.
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def on_message(client, userdata, msg):
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payload = msg.payload.decode("utf-8")
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if ((mqtt_topic + "cmd/rpm") == msg.topic):
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if (ser.is_open):
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command = "ollpef{:02x}".format(int(payload))
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command = COMMAND_PREFIX+"f{:02x}".format(int(payload))
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ser.write(command.encode('utf-8'))
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else:
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client.publish(mqtt_topic + "cmd/exception", "Serial Connection closed") # clear exception
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elif ((mqtt_topic + "cmd/led") == msg.topic):
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command = "ollpel" + payload
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command = COMMAND_PREFIX+"l" + payload
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ser.write(command.encode('utf-8'))
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else:
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print(msg.topic+" "+str(msg.payload))
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logging.warning(msg.topic+" "+str(msg.payload))
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# Handle MQTT Commands
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def on_connect(client, obj, flags, reason_code, properties):
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client.subscribe(mqtt_topic + "cmd/led")
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client.subscribe(mqtt_topic + "cmd/rpm")
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print("Connected: " + str(reason_code))
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client.publish(mqtt_topic + "online", payload="true", qos=1, retain=True)
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logging.debug("Connected: " + str(reason_code))
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# Start mqtt
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client_id = f'python-fan-ctrl'
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@ -48,12 +71,13 @@ client.on_message = on_message
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client.on_connect = on_connect
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if (not (mqtt_server)):
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print("MQTT_SERVER is not set")
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logging.error("MQTT_SERVER is not set")
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if (not (mqtt_topic)):
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print("MQTT_TOPIC is not set")
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logging.error("MQTT_TOPIC is not set")
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# Start MQTT Client
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client.will_set(mqtt_topic + "online", payload="false", qos=1, retain=True)
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client.connect(mqtt_server, 1883)
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client.loop_start()
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@ -70,12 +94,13 @@ lastTarget = -1
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# Endless Loop
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try:
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while True:
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while ((mqtt_topic is not None) and (mqtt_server is not None)):
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try:
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if (not (ser.is_open)):
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ser.open()
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continue
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except (serial.SerialException):
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logging.error("Could not open serial connection")
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client.publish(mqtt_topic + "exception", "serial reopen") # check which port was really used
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time.sleep(3.0)
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@ -88,26 +113,32 @@ try:
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if (SerialCommunicationFailureCounter > MAXIMUM_COMMUNICATION_FAILURE):
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raise serial.SerialException("device reports readiness / device disconnected " + str(MAXIMUM_COMMUNICATION_FAILURE) + " times")
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if (line):
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if (line) :
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client.publish(mqtt_topic + "exception", "") # clear exception
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# activate debug code, by default
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temperatur = None
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percent = None
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rpm = None
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# convert byte array to string
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l = line.decode("utf-8")
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if (COMMAND_PREFIX in l):
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logging.debug("Skip '" + str(l) + "', found " + str(COMMAND_PREFIX))
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continue
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try:
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# Parse the controller information
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# e.g. : 22.00;0%;0RPM
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temperatur, percent, rpm = l.split(";")
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except (ValueError):
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# activate debug code
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temperatur = None
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percent = None
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rpm = None
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logging.debug("Unparsable '" + str(l) + "'")
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if ((temperatur) and (percent) and (rpm)):
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parseError=False
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try:
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currentTemperatur = float(temperatur)
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except (ValueError):
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print("Temperatur Error: could not convert string to float:" + temperatur)
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logging.error("Temperatur Error: could not convert string to float:" + temperatur)
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currentTemperatur = lastTemperatur
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if (abs(currentTemperatur - lastTemperatur) > TEMPERATUR_MIN_DIFFERENCE):
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client.publish(mqtt_topic + "temperatur", str(currentTemperatur))
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@ -117,7 +148,7 @@ try:
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try:
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currentTarget = int(percent[:-4])
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except (ValueError):
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print("Percent Error: could not convert string to int:" + (percent[:-4]))
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logging.error("Percent Error: could not convert string to int:" + (percent[:-4]))
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currentTarget = lastTarget
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if (abs(lastTarget - currentTarget) > TARGET_MIN_DIFFERENCE):
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@ -133,7 +164,7 @@ try:
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try:
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currentRPM = int(rpm[:-3])
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except (ValueError):
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print("RPM Error: could not convert string to int:" + (rpm[:-3]))
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logging.error("RPM Error: could not convert string to int:" + (rpm[:-3]))
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currentRPM = lastRPM
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if (abs(currentRPM-lastRPM) > RPM_MIN_DIFFERENCE):
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@ -152,9 +183,9 @@ try:
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time.sleep(0.5)
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except (KeyboardInterrupt, SystemExit):
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print("User aborted service ...")
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logging.error("User aborted service ...")
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client.publish(mqtt_topic + "debug", "User aborted service")
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time.sleep(0.5)
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print("service Dead")
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logging.debug("service Dead")
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client.loop_stop()
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