core/homeassistant/components/switch/arest.py

166 lines
5.9 KiB
Python

"""
Support for device running with the aREST RESTful framework.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/switch.arest/
"""
# pylint: disable=abstract-method
import logging
import requests
from homeassistant.components.switch import SwitchDevice
from homeassistant.const import DEVICE_DEFAULT_NAME
_LOGGER = logging.getLogger(__name__)
def setup_platform(hass, config, add_devices, discovery_info=None):
"""Setup the aREST switches."""
resource = config.get('resource', None)
try:
response = requests.get(resource, timeout=10)
except requests.exceptions.MissingSchema:
_LOGGER.error("Missing resource or schema in configuration. "
"Add http:// to your URL.")
return False
except requests.exceptions.ConnectionError:
_LOGGER.error("No route to device at %s. "
"Please check the IP address in the configuration file.",
resource)
return False
dev = []
pins = config.get('pins', {})
for pinnum, pin in pins.items():
dev.append(ArestSwitchPin(resource,
config.get('name', response.json()['name']),
pin.get('name'),
pinnum))
functions = config.get('functions', {})
for funcname, func in functions.items():
dev.append(ArestSwitchFunction(resource,
config.get('name',
response.json()['name']),
func.get('name'),
funcname))
add_devices(dev)
class ArestSwitchBase(SwitchDevice):
"""representation of an aREST switch."""
def __init__(self, resource, location, name):
"""Initialize the switch."""
self._resource = resource
self._name = '{} {}'.format(location.title(), name.title()) \
or DEVICE_DEFAULT_NAME
self._state = None
@property
def name(self):
"""Return the name of the switch."""
return self._name
@property
def is_on(self):
"""Return true if device is on."""
return self._state
class ArestSwitchFunction(ArestSwitchBase):
"""Representation of an aREST switch."""
def __init__(self, resource, location, name, func):
"""Initialize the switch."""
super().__init__(resource, location, name)
self._func = func
request = requests.get('{}/{}'.format(self._resource, self._func),
timeout=10)
if request.status_code is not 200:
_LOGGER.error("Can't find function. Is device offline?")
return
try:
request.json()['return_value']
except KeyError:
_LOGGER.error("No return_value received. "
"Is the function name correct.")
except ValueError:
_LOGGER.error("Response invalid. Is the function name correct.")
def turn_on(self, **kwargs):
"""Turn the device on."""
request = requests.get('{}/{}'.format(self._resource, self._func),
timeout=10, params={"params": "1"})
if request.status_code == 200:
self._state = True
else:
_LOGGER.error("Can't turn on function %s at %s. "
"Is device offline?",
self._func, self._resource)
def turn_off(self, **kwargs):
"""Turn the device off."""
request = requests.get('{}/{}'.format(self._resource, self._func),
timeout=10, params={"params": "0"})
if request.status_code == 200:
self._state = False
else:
_LOGGER.error("Can't turn off function %s at %s. "
"Is device offline?",
self._func, self._resource)
def update(self):
"""Get the latest data from aREST API and update the state."""
request = requests.get('{}/{}'.format(self._resource,
self._func), timeout=10)
self._state = request.json()['return_value'] != 0
class ArestSwitchPin(ArestSwitchBase):
"""Representation of an aREST switch. Based on digital I/O."""
def __init__(self, resource, location, name, pin):
"""Initialize the switch."""
super().__init__(resource, location, name)
self._pin = pin
request = requests.get('{}/mode/{}/o'.format(self._resource,
self._pin), timeout=10)
if request.status_code is not 200:
_LOGGER.error("Can't set mode. Is device offline?")
def turn_on(self, **kwargs):
"""Turn the device on."""
request = requests.get('{}/digital/{}/1'.format(self._resource,
self._pin), timeout=10)
if request.status_code == 200:
self._state = True
else:
_LOGGER.error("Can't turn on pin %s at %s. Is device offline?",
self._pin, self._resource)
def turn_off(self, **kwargs):
"""Turn the device off."""
request = requests.get('{}/digital/{}/0'.format(self._resource,
self._pin), timeout=10)
if request.status_code == 200:
self._state = False
else:
_LOGGER.error("Can't turn off pin %s at %s. Is device offline?",
self._pin, self._resource)
def update(self):
"""Get the latest data from aREST API and update the state."""
request = requests.get('{}/digital/{}'.format(self._resource,
self._pin), timeout=10)
self._state = request.json()['return_value'] != 0