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Yr.no update entities every hour (#4521)

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Johann Kellerman 2016-11-23 05:28:31 +02:00 committed by Paulus Schoutsen
parent b4756e6dda
commit 0827a26642
1 changed files with 32 additions and 28 deletions
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60
homeassistant/components/sensor/yr.py
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@ -19,7 +19,8 @@ from homeassistant.const import (
CONF_LATITUDE, CONF_LONGITUDE, CONF_ELEVATION, CONF_MONITORED_CONDITIONS, CONF_LATITUDE, CONF_LONGITUDE, CONF_ELEVATION, CONF_MONITORED_CONDITIONS,
ATTR_ATTRIBUTION) ATTR_ATTRIBUTION)
from homeassistant.helpers.entity import Entity from homeassistant.helpers.entity import Entity
from homeassistant.helpers.event import async_track_point_in_utc_time from homeassistant.helpers.event import (
async_track_point_in_utc_time, async_track_utc_time_change)
from homeassistant.util import dt as dt_util from homeassistant.util import dt as dt_util
@ -76,6 +77,8 @@ def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
yield from async_add_devices(dev) yield from async_add_devices(dev)
weather = YrData(hass, coordinates, dev) weather = YrData(hass, coordinates, dev)
# Update weather on the hour
async_track_utc_time_change(hass, weather.async_update, minute=0, second=0)
yield from weather.async_update() yield from weather.async_update()
@ -139,40 +142,41 @@ class YrData(object):
self.hass = hass self.hass = hass
@asyncio.coroutine @asyncio.coroutine
def async_update(self): def async_update(self, *_):
"""Get the latest data from yr.no.""" """Get the latest data from yr.no."""
def try_again(err: str): def try_again(err: str):
"""Schedule again later.""" """Retry in 15 minutes."""
_LOGGER.warning('Retrying in 15 minutes: %s', err) _LOGGER.warning('Retrying in 15 minutes: %s', err)
self._nextrun = None
nxt = dt_util.utcnow() + timedelta(minutes=15) nxt = dt_util.utcnow() + timedelta(minutes=15)
async_track_point_in_utc_time(self.hass, self.async_update, nxt) if nxt.minute >= 15:
async_track_point_in_utc_time(self.hass, self.async_update,
nxt)
try: if self._nextrun is None or dt_util.utcnow() >= self._nextrun:
with async_timeout.timeout(10, loop=self.hass.loop): try:
resp = yield from self.hass.websession.get(self._url) with async_timeout.timeout(10, loop=self.hass.loop):
if resp.status != 200: resp = yield from self.hass.websession.get(self._url)
try_again('{} returned {}'.format(self._url, resp.status)) if resp.status != 200:
try_again('{} returned {}'.format(self._url, resp.status))
return
text = yield from resp.text()
self.hass.async_add_job(resp.release())
except (asyncio.TimeoutError, aiohttp.errors.ClientError,
aiohttp.errors.ClientDisconnectedError) as err:
try_again(err)
return return
text = yield from resp.text()
self.hass.async_add_job(resp.release())
except (asyncio.TimeoutError, aiohttp.errors.ClientError,
aiohttp.errors.ClientDisconnectedError) as err:
try_again(err)
return
try: try:
import xmltodict import xmltodict
self.data = xmltodict.parse(text)['weatherdata'] self.data = xmltodict.parse(text)['weatherdata']
model = self.data['meta']['model'] model = self.data['meta']['model']
if '@nextrun' not in model: if '@nextrun' not in model:
model = model[0] model = model[0]
next_run = dt_util.parse_datetime(model['@nextrun']) self._nextrun = dt_util.parse_datetime(model['@nextrun'])
except (ExpatError, IndexError) as err: except (ExpatError, IndexError) as err:
try_again(err) try_again(err)
return return
# Schedule next execution
async_track_point_in_utc_time(self.hass, self.async_update, next_run)
now = dt_util.utcnow() now = dt_util.utcnow()