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Improved exception handling. Don't stop updating from server because of exception. (#3724)

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This commit is contained in:
Erik Eriksson 2016-10-08 02:24:02 +02:00 committed by Paulus Schoutsen
parent f1e5d32ef5
commit fccc7e69d0
1 changed files with 37 additions and 42 deletions
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79
homeassistant/components/device_tracker/volvooncall.py
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@ -39,28 +39,46 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
def setup_scanner(hass, config, see): def setup_scanner(hass, config, see):
"""Validate the configuration and return a scanner.""" """Validate the configuration and return a scanner."""
username = config.get(CONF_USERNAME) session = requests.Session()
password = config.get(CONF_PASSWORD) session.headers.update(HEADERS)
session.auth = (config.get(CONF_USERNAME),
config.get(CONF_PASSWORD))
interval = max(MIN_TIME_BETWEEN_SCANS.seconds, interval = max(MIN_TIME_BETWEEN_SCANS.seconds,
config.get(CONF_SCAN_INTERVAL, DEFAULT_SCAN_INTERVAL)) config.get(CONF_SCAN_INTERVAL, DEFAULT_SCAN_INTERVAL))
session = requests.Session()
session.headers.update(HEADERS)
session.auth = (username, password)
def query(ref, rel=SERVICE_URL): def query(ref, rel=SERVICE_URL):
"""Perform a query to the online service.""" """Perform a query to the online service."""
url = urljoin(rel, ref) url = urljoin(rel, ref)
_LOGGER.debug("Request for %s", url)
res = session.get(url, timeout=15)
res.raise_for_status()
_LOGGER.debug("Received %s", res.json())
return res.json()
def update(now):
"""Update status from the online service."""
try: try:
_LOGGER.debug("Request for %s", url) _LOGGER.debug("Updating")
res = session.get(url) status = query("status", vehicle_url)
res.raise_for_status() position = query("position", vehicle_url)
_LOGGER.debug("Received %s", res.json()) see(dev_id=dev_id,
return res.json() host_name=host_name,
except requests.exceptions.RequestException: gps=(position["position"]["latitude"],
_LOGGER.exception("Could not make query to %s", url) position["position"]["longitude"]),
raise attributes=dict(
tank_volume=attributes["fuelTankVolume"],
washer_fluid=status["washerFluidLevel"],
brake_fluid=status["brakeFluid"],
service_warning=status["serviceWarningStatus"],
fuel=status["fuelAmount"],
odometer=status["odometer"],
range=status["distanceToEmpty"]))
except requests.exceptions.RequestException as error:
_LOGGER.error("Could not query server: %s", error)
finally:
track_point_in_utc_time(hass, update,
now + timedelta(seconds=interval))
try: try:
_LOGGER.info('Logging in to service') _LOGGER.info('Logging in to service')
@ -73,33 +91,10 @@ def setup_scanner(hass, config, see):
host_name = "%s %s/%s" % (attributes["registrationNumber"], host_name = "%s %s/%s" % (attributes["registrationNumber"],
attributes["vehicleType"], attributes["vehicleType"],
attributes["modelYear"]) attributes["modelYear"])
except requests.exceptions.RequestException: update(utcnow())
return True
except requests.exceptions.RequestException as error:
_LOGGER.error("Could not log in to service. " _LOGGER.error("Could not log in to service. "
"Please check configuration.") "Please check configuration: "
"%s", error)
return False return False
def update(now):
"""Update status from the online service."""
_LOGGER.debug("Updating")
status = query("status", vehicle_url)
position = query("position", vehicle_url)
see(dev_id=dev_id,
host_name=host_name,
gps=(position["position"]["latitude"],
position["position"]["longitude"]),
attributes=dict(
tank_volume=attributes["fuelTankVolume"],
washer_fluid=status["washerFluidLevel"],
brake_fluid=status["brakeFluid"],
service_warning=status["serviceWarningStatus"],
fuel=status["fuelAmount"],
odometer=status["odometer"],
range=status["distanceToEmpty"]))
track_point_in_utc_time(hass, update,
now + timedelta(seconds=interval))
update(utcnow())
return True