116 lines
3.7 KiB
Python
116 lines
3.7 KiB
Python
"""
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Support for an exposed aREST RESTful API of a device.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/binary_sensor.arest/
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"""
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import logging
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from datetime import timedelta
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import requests
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import voluptuous as vol
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from homeassistant.components.binary_sensor import (
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BinarySensorDevice, PLATFORM_SCHEMA, SENSOR_CLASSES_SCHEMA)
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from homeassistant.const import (
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CONF_RESOURCE, CONF_PIN, CONF_NAME, CONF_SENSOR_CLASS)
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from homeassistant.util import Throttle
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import homeassistant.helpers.config_validation as cv
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_LOGGER = logging.getLogger(__name__)
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MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=30)
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_RESOURCE): cv.url,
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vol.Optional(CONF_NAME): cv.string,
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vol.Required(CONF_PIN): cv.string,
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vol.Optional(CONF_SENSOR_CLASS): SENSOR_CLASSES_SCHEMA,
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})
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Setup the aREST binary sensor."""
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resource = config.get(CONF_RESOURCE)
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pin = config.get(CONF_PIN)
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sensor_class = config.get(CONF_SENSOR_CLASS)
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try:
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response = requests.get(resource, timeout=10).json()
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except requests.exceptions.MissingSchema:
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_LOGGER.error('Missing resource or schema in configuration. '
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'Add http:// to your URL.')
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return False
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except requests.exceptions.ConnectionError:
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_LOGGER.error('No route to device at %s. '
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'Please check the IP address in the configuration file.',
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resource)
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return False
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arest = ArestData(resource, pin)
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add_devices([ArestBinarySensor(
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arest, resource, config.get(CONF_NAME, response[CONF_NAME]),
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sensor_class, pin)])
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# pylint: disable=too-many-instance-attributes, too-many-arguments
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class ArestBinarySensor(BinarySensorDevice):
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"""Implement an aREST binary sensor for a pin."""
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def __init__(self, arest, resource, name, sensor_class, pin):
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"""Initialize the aREST device."""
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self.arest = arest
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self._resource = resource
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self._name = name
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self._sensor_class = sensor_class
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self._pin = pin
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self.update()
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if self._pin is not None:
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request = requests.get('{}/mode/{}/i'.format
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(self._resource, self._pin), timeout=10)
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if request.status_code is not 200:
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_LOGGER.error("Can't set mode. Is device offline?")
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@property
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def name(self):
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"""Return the name of the binary sensor."""
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return self._name
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@property
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def is_on(self):
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"""Return true if the binary sensor is on."""
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return bool(self.arest.data.get('state'))
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@property
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def sensor_class(self):
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"""Return the class of this sensor."""
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return self._sensor_class
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def update(self):
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"""Get the latest data from aREST API."""
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self.arest.update()
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# pylint: disable=too-few-public-methods
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class ArestData(object):
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"""Class for handling the data retrieval for pins."""
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def __init__(self, resource, pin):
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"""Initialize the aREST data object."""
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self._resource = resource
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self._pin = pin
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self.data = {}
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@Throttle(MIN_TIME_BETWEEN_UPDATES)
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def update(self):
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"""Get the latest data from aREST device."""
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try:
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response = requests.get('{}/digital/{}'.format(
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self._resource, self._pin), timeout=10)
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self.data = {'state': response.json()['return_value']}
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except requests.exceptions.ConnectionError:
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_LOGGER.error("No route to device '%s'. Is device offline?",
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self._resource)
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