sem6000/collectd/collectd_sem6000.py

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2020-01-19 20:10:07 +01:00
#!/usr/bin/env python3
# coding: utf-8
# vim: noet ts=2 sw=2 sts=2
import os
import collectd
from sem6000 import SEMSocket
import bluepy
instances = []
def init_func():
pass
def config_func(cfg):
global instances
config = {}
for node in cfg.children:
key = node.key.lower()
value = node.values[0]
if key in ['address', 'socketname']:
config[key] = value
if 'address' not in config.keys():
collectd.error('sem6000: address must be set')
return
if 'socketname' not in config.keys():
config['socketname'] = config['address'].replace(':', '')
instances.append( {'config': config, 'socket': None} )
def read_func():
global instances
for inst in instances:
config = inst['config']
try:
if inst['socket'] == None:
collectd.info("sem6000: Connecting to {}...".format(config['address']))
inst['socket'] = SEMSocket(config['address'])
collectd.info("sem6000: Connected.")
inst['socket'].getStatus()
except (SEMSocket.NotConnectedException, bluepy.btle.BTLEDisconnectError, BrokenPipeError) as e:
collectd.warning("sem6000: Exception caught: {}".format(e))
collectd.warning("sem6000: Restarting on next cycle...")
if inst['socket'] != None:
inst['socket'].disconnect()
inst['socket'] = None
socket = inst['socket']
if socket != None and socket.voltage != 0:
collectd.debug("Uploading values for {}".format(socket.mac_address))
val = collectd.Values(plugin = 'sem6000-{}'.format(config['socketname']))
val.type = 'voltage'
val.type_instance = 'grid'
val.values = [ socket.voltage ]
val.dispatch()
val.type = 'current'
val.type_instance = 'load'
val.values = [ socket.current ]
val.dispatch()
val.type = 'power'
val.type_instance = 'real_power'
val.values = [ socket.power ]
val.dispatch()
val.type = 'gauge'
val.type_instance = 'power_factor'
val.values = [ socket.power_factor ]
val.dispatch()
val.type = 'gauge'
val.type_instance = 'load_on'
val.values = [ socket.powered ]
val.dispatch()
val.type = 'frequency'
val.type_instance = 'grid'
val.values = [ socket.frequency ]
val.dispatch()
def shutdown_func():
global instances
for inst in instances:
if inst['socket'] != None:
inst['socket'].disconnect()
instances = []
collectd.register_config(config_func)
collectd.register_init(init_func)
collectd.register_read(read_func)
collectd.register_shutdown(shutdown_func)