core/homeassistant/components/eliqonline/sensor.py

97 lines
2.8 KiB
Python

"""Monitors home energy use for the ELIQ Online service."""
from datetime import timedelta
import logging
import asyncio
import voluptuous as vol
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import (CONF_ACCESS_TOKEN, CONF_NAME, POWER_WATT)
from homeassistant.helpers.entity import Entity
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.aiohttp_client import async_get_clientsession
_LOGGER = logging.getLogger(__name__)
CONF_CHANNEL_ID = 'channel_id'
DEFAULT_NAME = 'ELIQ Online'
ICON = 'mdi:gauge'
SCAN_INTERVAL = timedelta(seconds=60)
UNIT_OF_MEASUREMENT = POWER_WATT
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_ACCESS_TOKEN): cv.string,
vol.Required(CONF_CHANNEL_ID): cv.positive_int,
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
})
async def async_setup_platform(hass, config, async_add_entities,
discovery_info=None):
"""Set up the ELIQ Online sensor."""
import eliqonline
access_token = config.get(CONF_ACCESS_TOKEN)
name = config.get(CONF_NAME, DEFAULT_NAME)
channel_id = config.get(CONF_CHANNEL_ID)
session = async_get_clientsession(hass)
api = eliqonline.API(session=session,
access_token=access_token)
try:
_LOGGER.debug("Probing for access to ELIQ Online API")
await api.get_data_now(channelid=channel_id)
except OSError as error:
_LOGGER.error("Could not access the ELIQ Online API: %s", error)
return False
async_add_entities([EliqSensor(api, channel_id, name)], True)
class EliqSensor(Entity):
"""Implementation of an ELIQ Online sensor."""
def __init__(self, api, channel_id, name):
"""Initialize the sensor."""
self._name = name
self._state = None
self._api = api
self._channel_id = channel_id
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def icon(self):
"""Return icon."""
return ICON
@property
def unit_of_measurement(self):
"""Return the unit of measurement of this entity, if any."""
return UNIT_OF_MEASUREMENT
@property
def state(self):
"""Return the state of the device."""
return self._state
async def async_update(self):
"""Get the latest data."""
try:
response = await self._api.get_data_now(channelid=self._channel_id)
self._state = int(response["power"])
_LOGGER.debug("Updated power from server %d W", self._state)
except KeyError:
_LOGGER.warning("Invalid response from ELIQ Online API")
except (OSError, asyncio.TimeoutError) as error:
_LOGGER.warning("Could not connect to the ELIQ Online API: %s",
error)