124 lines
3.4 KiB
Python
124 lines
3.4 KiB
Python
"""
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Support for getting the disk temperature of a host.
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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/sensor.hddtemp/
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"""
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import logging
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from datetime import timedelta
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from telnetlib import Telnet
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import voluptuous as vol
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from homeassistant.helpers.entity import Entity
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from homeassistant.components.sensor import PLATFORM_SCHEMA
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from homeassistant.const import (
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CONF_NAME, CONF_HOST, CONF_PORT, TEMP_CELSIUS, TEMP_FAHRENHEIT,
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STATE_UNKNOWN)
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import homeassistant.helpers.config_validation as cv
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from homeassistant.util import Throttle
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_LOGGER = logging.getLogger(__name__)
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ATTR_DEVICE = 'device'
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ATTR_MODEL = 'model'
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DEFAULT_HOST = 'localhost'
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DEFAULT_PORT = 7634
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DEFAULT_NAME = 'HD Temperature'
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DEFAULT_TIMEOUT = 5
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MIN_TIME_BETWEEN_UPDATES = timedelta(minutes=1)
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Optional(CONF_HOST, default=DEFAULT_HOST): cv.string,
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vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
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vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
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})
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Setup the HDDTemp sensor."""
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name = config.get(CONF_NAME)
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host = config.get(CONF_HOST)
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port = config.get(CONF_PORT)
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hddtemp = HddTempData(host, port)
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hddtemp.update()
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if hddtemp.data is None:
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_LOGGER.error("Unable to fetch the data from %s:%s", host, port)
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return False
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add_devices([HddTempSensor(name, hddtemp)])
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class HddTempSensor(Entity):
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"""Representation of a HDDTemp sensor."""
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def __init__(self, name, hddtemp):
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"""Initialize a HDDTemp sensor."""
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self.hddtemp = hddtemp
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self._name = name
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self._state = False
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self._details = None
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self.update()
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@property
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def name(self):
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"""Return the name of the sensor."""
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return self._name
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@property
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def state(self):
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"""Return the state of the device."""
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return self._state
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@property
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def unit_of_measurement(self):
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"""Return the unit the value is expressed in."""
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if self.details[4] == 'C':
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return TEMP_CELSIUS
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else:
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return TEMP_FAHRENHEIT
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@property
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def state_attributes(self):
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"""Return the state attributes of the sensor."""
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return {
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ATTR_DEVICE: self.details[1],
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ATTR_MODEL: self.details[2],
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}
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def update(self):
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"""Get the latest data from HDDTemp daemon and updates the state."""
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self.hddtemp.update()
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if self.hddtemp.data is not None:
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self.details = self.hddtemp.data.split('|')
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self._state = self.details[3]
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else:
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self._state = STATE_UNKNOWN
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class HddTempData(object):
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"""Get the latest data from HDDTemp and update the states."""
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def __init__(self, host, port):
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"""Initialize the data object."""
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self.host = host
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self.port = port
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self.data = None
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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 hhtemp running as daemon."""
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try:
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connection = Telnet(
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host=self.host, port=self.port, timeout=DEFAULT_TIMEOUT)
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self.data = connection.read_all().decode('ascii')
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except ConnectionRefusedError:
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_LOGGER.error('HDDTemp is not available at %s:%s', self.host,
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self.port)
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self.data = None
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