core/homeassistant/components/maxcube/__init__.py

102 lines
3.1 KiB
Python

"""Support for the MAX! Cube LAN Gateway."""
import logging
import time
from socket import timeout
from threading import Lock
import voluptuous as vol
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.discovery import load_platform
from homeassistant.const import CONF_HOST, CONF_PORT, CONF_SCAN_INTERVAL
_LOGGER = logging.getLogger(__name__)
DEFAULT_PORT = 62910
DOMAIN = 'maxcube'
DATA_KEY = 'maxcube'
NOTIFICATION_ID = 'maxcube_notification'
NOTIFICATION_TITLE = 'Max!Cube gateway setup'
CONF_GATEWAYS = 'gateways'
CONFIG_GATEWAY = vol.Schema({
vol.Required(CONF_HOST): cv.string,
vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
vol.Optional(CONF_SCAN_INTERVAL, default=300): cv.time_period,
})
CONFIG_SCHEMA = vol.Schema({
DOMAIN: vol.Schema({
vol.Required(CONF_GATEWAYS, default={}):
vol.All(cv.ensure_list, [CONFIG_GATEWAY]),
}),
}, extra=vol.ALLOW_EXTRA)
def setup(hass, config):
"""Establish connection to MAX! Cube."""
from maxcube.connection import MaxCubeConnection
from maxcube.cube import MaxCube
if DATA_KEY not in hass.data:
hass.data[DATA_KEY] = {}
connection_failed = 0
gateways = config[DOMAIN][CONF_GATEWAYS]
for gateway in gateways:
host = gateway[CONF_HOST]
port = gateway[CONF_PORT]
scan_interval = gateway[CONF_SCAN_INTERVAL].total_seconds()
try:
cube = MaxCube(MaxCubeConnection(host, port))
hass.data[DATA_KEY][host] = MaxCubeHandle(cube, scan_interval)
except timeout as ex:
_LOGGER.error("Unable to connect to Max!Cube gateway: %s", str(ex))
hass.components.persistent_notification.create(
'Error: {}<br />'
'You will need to restart Home Assistant after fixing.'
''.format(ex),
title=NOTIFICATION_TITLE,
notification_id=NOTIFICATION_ID)
connection_failed += 1
if connection_failed >= len(gateways):
return False
load_platform(hass, 'climate', DOMAIN, {}, config)
load_platform(hass, 'binary_sensor', DOMAIN, {}, config)
return True
class MaxCubeHandle:
"""Keep the cube instance in one place and centralize the update."""
def __init__(self, cube, scan_interval):
"""Initialize the Cube Handle."""
self.cube = cube
self.scan_interval = scan_interval
self.mutex = Lock()
self._updatets = time.time()
def update(self):
"""Pull the latest data from the MAX! Cube."""
# Acquire mutex to prevent simultaneous update from multiple threads
with self.mutex:
# Only update every update_interval
if (time.time() - self._updatets) >= self.scan_interval:
_LOGGER.debug("Updating")
try:
self.cube.update()
except timeout:
_LOGGER.error("Max!Cube connection failed")
return False
self._updatets = time.time()
else:
_LOGGER.debug("Skipping update")