114 lines
3.3 KiB
Python
114 lines
3.3 KiB
Python
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"""
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homeassistant.components.influx
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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InfluxDB component which allows you to send data to an Influx database.
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For more details about this component, please refer to the documentation at
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https://home-assistant.io/components/influx/
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Configuration:
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influx:
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host: localhost
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port: 8086
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dbname: home_assistant
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dbuser: DB_USER
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dbuser_password: DB_USER_PASSWORD
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"""
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import logging
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import homeassistant.util as util
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from homeassistant.helpers import validate_config
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from homeassistant.const import (EVENT_STATE_CHANGED, STATE_ON, STATE_OFF,
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STATE_UNLOCKED, STATE_LOCKED, STATE_UNKNOWN)
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from homeassistant.components.sun import (STATE_ABOVE_HORIZON,
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STATE_BELOW_HORIZON)
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_LOGGER = logging.getLogger(__name__)
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DOMAIN = "influx"
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DEPENDENCIES = []
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DEFAULT_HOST = 'localhost'
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DEFAULT_PORT = 8086
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DEFAULT_DATABASE = 'home_assistant'
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REQUIREMENTS = ['influxdb==2.10.0']
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CONF_HOST = 'host'
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CONF_PORT = 'port'
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CONF_DB_NAME = 'database'
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CONF_USERNAME = 'username'
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CONF_PASSWORD = 'password'
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def setup(hass, config):
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""" Setup the Influx component. """
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from influxdb import InfluxDBClient, exceptions
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if not validate_config(config, {DOMAIN: ['host']}, _LOGGER):
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return False
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conf = config[DOMAIN]
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host = conf[CONF_HOST]
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port = util.convert(conf.get(CONF_PORT), int, DEFAULT_PORT)
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dbname = util.convert(conf.get(CONF_DB_NAME), str, DEFAULT_DATABASE)
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username = util.convert(conf.get(CONF_USERNAME), str)
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password = util.convert(conf.get(CONF_PASSWORD), str)
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try:
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influx = InfluxDBClient(host=host, port=port, username=username,
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password=password, database=dbname)
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databases = [i['name'] for i in influx.get_list_database()]
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except exceptions.InfluxDBClientError:
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_LOGGER.error("Database host is not accessible. "
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"Please check your entries in the configuration file.")
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return False
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if dbname not in databases:
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_LOGGER.error("Database %s doesn't exist", dbname)
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return False
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def influx_event_listener(event):
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""" Listen for new messages on the bus and sends them to Influx. """
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state = event.data.get('new_state')
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if state is None:
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return
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if state.state in (STATE_ON, STATE_LOCKED, STATE_ABOVE_HORIZON):
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_state = 1
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elif state.state in (STATE_OFF, STATE_UNLOCKED, STATE_UNKNOWN,
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STATE_BELOW_HORIZON):
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_state = 0
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else:
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_state = state.state
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measurement = state.attributes.get('unit_of_measurement', state.domain)
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json_body = [
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{
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'measurement': measurement,
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'tags': {
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'domain': state.domain,
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'entity_id': state.object_id,
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},
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'time': event.time_fired,
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'fields': {
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'value': _state,
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}
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}
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]
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try:
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influx.write_points(json_body)
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except exceptions.InfluxDBClientError:
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_LOGGER.exception('Error saving event to Influx')
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hass.bus.listen(EVENT_STATE_CHANGED, influx_event_listener)
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return True
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