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106 lines
3.1 KiB
Python
106 lines
3.1 KiB
Python
"""Support for ADS binary sensors."""
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import logging
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import asyncio
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import async_timeout
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import voluptuous as vol
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from homeassistant.components.binary_sensor import (
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DEVICE_CLASSES_SCHEMA, PLATFORM_SCHEMA, BinarySensorDevice)
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from homeassistant.const import CONF_DEVICE_CLASS, CONF_NAME
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import homeassistant.helpers.config_validation as cv
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from . import CONF_ADS_VAR, DATA_ADS
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_LOGGER = logging.getLogger(__name__)
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DEFAULT_NAME = 'ADS binary sensor'
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DEPENDENCIES = ['ads']
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_ADS_VAR): cv.string,
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vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
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vol.Optional(CONF_DEVICE_CLASS): DEVICE_CLASSES_SCHEMA,
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})
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the Binary Sensor platform for ADS."""
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ads_hub = hass.data.get(DATA_ADS)
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ads_var = config.get(CONF_ADS_VAR)
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name = config.get(CONF_NAME)
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device_class = config.get(CONF_DEVICE_CLASS)
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ads_sensor = AdsBinarySensor(ads_hub, name, ads_var, device_class)
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add_entities([ads_sensor])
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class AdsBinarySensor(BinarySensorDevice):
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"""Representation of ADS binary sensors."""
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def __init__(self, ads_hub, name, ads_var, device_class):
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"""Initialize ADS binary sensor."""
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self._name = name
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self._unique_id = ads_var
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self._state = None
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self._device_class = device_class or 'moving'
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self._ads_hub = ads_hub
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self.ads_var = ads_var
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self._event = None
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async def async_added_to_hass(self):
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"""Register device notification."""
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def update(name, value):
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"""Handle device notifications."""
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_LOGGER.debug('Variable %s changed its value to %d', name, value)
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self._state = value
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asyncio.run_coroutine_threadsafe(async_event_set(), self.hass.loop)
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self.schedule_update_ha_state()
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async def async_event_set():
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"""Set event in async context."""
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self._event.set()
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self._event = asyncio.Event()
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await self.hass.async_add_executor_job(
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self._ads_hub.add_device_notification,
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self.ads_var, self._ads_hub.PLCTYPE_BOOL, update)
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try:
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with async_timeout.timeout(10):
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await self._event.wait()
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except asyncio.TimeoutError:
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_LOGGER.debug('Variable %s: Timeout during first update',
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self.ads_var)
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@property
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def name(self):
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"""Return the default name of the binary sensor."""
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return self._name
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@property
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def unique_id(self):
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"""Return an unique identifier for this entity."""
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return self._unique_id
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@property
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def device_class(self):
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"""Return the device class."""
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return self._device_class
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@property
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def is_on(self):
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"""Return if the binary sensor is on."""
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return self._state
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@property
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def should_poll(self):
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"""Return False because entity pushes its state to HA."""
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return False
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@property
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def available(self):
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"""Return False if state has not been updated yet."""
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return self._state is not None
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