core/homeassistant/components/sensor/supervisord.py

74 lines
2.0 KiB
Python

"""
Sensor for Supervisord process status.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/sensor.supervisord/
"""
import logging
import xmlrpc.client
import voluptuous as vol
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import CONF_URL
from homeassistant.helpers.entity import Entity
import homeassistant.helpers.config_validation as cv
_LOGGER = logging.getLogger(__name__)
DEFAULT_URL = 'http://localhost:9001/RPC2'
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Optional(CONF_URL, default=DEFAULT_URL): cv.url,
})
# pylint: disable=unused-argument
def setup_platform(hass, config, add_devices, discovery_info=None):
"""Setup the Supervisord platform."""
url = config.get(CONF_URL)
try:
supervisor_server = xmlrpc.client.ServerProxy(url)
except ConnectionRefusedError:
_LOGGER.error('Could not connect to Supervisord')
return False
processes = supervisor_server.supervisor.getAllProcessInfo()
add_devices(
[SupervisorProcessSensor(info, supervisor_server)
for info in processes])
class SupervisorProcessSensor(Entity):
"""Representation of a supervisor-monitored process."""
def __init__(self, info, server):
"""Initialize the sensor."""
self._info = info
self._server = server
self.update()
@property
def name(self):
"""Return the name of the sensor."""
return self._info.get('name')
@property
def state(self):
"""Return the state of the sensor."""
return self._info.get('statename')
def update(self):
"""Update device state."""
self._info = self._server.supervisor.getProcessInfo(
self._info.get('name'))
@property
def device_state_attributes(self):
"""Return the state attributes."""
return {
'group': self._info.get('group'),
'description': self._info.get('description')
}