core/homeassistant/components/knx/binary_sensor.py

68 lines
2.0 KiB
Python

"""Support for KNX/IP binary sensors."""
from xknx.devices import BinarySensor as XknxBinarySensor
from homeassistant.components.binary_sensor import BinarySensorEntity
from homeassistant.core import callback
from . import DATA_KNX
async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
"""Set up binary sensor(s) for KNX platform."""
entities = []
for device in hass.data[DATA_KNX].xknx.devices:
if isinstance(device, XknxBinarySensor):
entities.append(KNXBinarySensor(device))
async_add_entities(entities)
class KNXBinarySensor(BinarySensorEntity):
"""Representation of a KNX binary sensor."""
def __init__(self, device: XknxBinarySensor):
"""Initialize of KNX binary sensor."""
self.device = device
@callback
def async_register_callbacks(self):
"""Register callbacks to update hass after device was changed."""
async def after_update_callback(device):
"""Call after device was updated."""
self.async_write_ha_state()
self.device.register_device_updated_cb(after_update_callback)
async def async_added_to_hass(self):
"""Store register state change callback."""
self.async_register_callbacks()
async def async_update(self):
"""Request a state update from KNX bus."""
await self.device.sync()
@property
def name(self):
"""Return the name of the KNX device."""
return self.device.name
@property
def available(self):
"""Return True if entity is available."""
return self.hass.data[DATA_KNX].connected
@property
def should_poll(self):
"""No polling needed within KNX."""
return False
@property
def device_class(self):
"""Return the class of this sensor."""
return self.device.device_class
@property
def is_on(self):
"""Return true if the binary sensor is on."""
return self.device.is_on()