def report(timestamp, vin, data):
logger.info('Tracking Callback Server: Report request: Time: %s, VIN: %s, Data: %s.', timestamp, vin, data)
# get the vehicle record from the database
try:
vehicle = Vehicle.objects.get(veh_vin = vin)
except Exception as e:
logger.error("Tracking Callback Server: Cannot retrieve vehicle '%s' from database. Error: %s", vin, e)
return {u'status': 0}
location = Location()
location.loc_vehicle = vehicle
location.loc_time = timestamp
for channel in data:
key = channel['channel']
value = channel['value']
if key == 'location':
location.loc_latitude = value['lat']
location.loc_longitude = value['lon']
location.loc_altitude = value['alt']
elif key == 'speed':
location.loc_speed = float(value)
elif key == 'odometer':
location.loc_odometer = float(value)
location.save()
return {u'status': 0}
def run(self):
# get the vehicle record
try:
vehicle = Vehicle.objects.get(veh_name=self.vehicle_name)
except:
logger.error("%s: Vehicle '%s' does not exist in database. Add it first.", MY_NAME, self.vehicle_name)
sys.exit(2)
# start GPS polling thread
self.gps_poller.start()
# catch signals for proper shutdown
for sig in (SIGABRT, SIGTERM, SIGINT):
signal(sig, self.cleanup)
# main execution loop
while True:
try:
time.sleep(self.interval)
# If we are idle too long the database server may
# close the connection on us, ping the server to check if
# the connection is still up.
if connection.connection is not None:
if connection.is_usable():
logger.debug("%s: Database connection is up.", MY_NAME)
else:
logger.error("%s: Database connection is down.", MY_NAME)
connection.close()
else:
logger.error("%s: Database connection is closed.", MY_NAME)
# process GPS data
session = self.gps_poller.session
if (session.fix.mode == MODE_NO_FIX) and not self.nofix:
logger.info("%s: Waiting for GPS to fix...", MY_NAME)
continue
if not isnan(session.fix.time):
if (session.fix.speed < 0.1) and (self.last_speed < 0.1):
continue
self.last_speed = session.fix.speed
# if the time is valid the data record is valid
location = Location()
location.loc_vehicle = vehicle
location.loc_time = session.utc
location.loc_latitude = session.fix.latitude
location.loc_longitude = session.fix.longitude
if session.fix.mode == MODE_3D:
location.loc_altitude = session.fix.altitude
location.loc_speed = session.fix.speed
location.loc_climb = session.fix.climb
location.loc_track = session.fix.track
location.save()
logger.info("%s: Valid location: %s", MY_NAME, location)
else:
logger.debug("%s: Invalid location: %s", MY_NAME)
except KeyboardInterrupt:
print ("\n")
break
def report(timestamp, vin, data):
logger.info(
'Tracking Callback Server: Report request: Time: %s, VIN: %s, Data: %s.',
timestamp, vin, data)
# get the vehicle record from the database
try:
vehicle = Vehicle.objects.get(veh_vin=vin)
except Exception as e:
logger.error(
"Tracking Callback Server: Cannot retrieve vehicle '%s' from database. Error: %s",
vin, e)
return {u'status': 0}
location = Location()
location.loc_vehicle = vehicle
try:
location.loc_time = datetime.fromtimestamp(float(timestamp))
except:
location.loc_time = timestamp
if isinstance(data, str) or isinstance(data, unicode):
logger.info('data is string')
data = ast.literal_eval(data)
for channel in data:
key = channel['channel']
value = channel['value']
logger.info('%s: %s', key, value)
if key == 'location':
location.loc_latitude = value['lat']
location.loc_longitude = value['lon']
location.loc_altitude = value['alt']
elif key == 'speed':
location.loc_speed = float(value)
elif key == 'odometer':
location.loc_odometer = float(value)
print 'Saving', location
location.save()
logger.info('Saved')
return {u'status': 0}
def run(self):
# get the vehicle record
try:
vehicle = Vehicle.objects.get(veh_name=self.vehicle_name)
except:
logger.error(
"%s: Vehicle '%s' does not exist in database. Add it first.",
MY_NAME, self.vehicle_name)
sys.exit(2)
# start GPS polling thread
self.gps_poller.start()
# catch signals for proper shutdown
for sig in (SIGABRT, SIGTERM, SIGINT):
signal(sig, self.cleanup)
# main execution loop
while True:
try:
time.sleep(self.interval)
# If we are idle too long the database server may
# close the connection on us, ping the server to check if
# the connection is still up.
if (connection.connection is not None):
if (connection.is_usable()):
logger.debug('%s: Database connection is up.', MY_NAME)
else:
logger.error('%s: Database connection is down.',
MY_NAME)
connection.close()
else:
logger.error('%s: Database connection is closed.', MY_NAME)
# process GPS data
session = self.gps_poller.session
if (session.fix.mode == MODE_NO_FIX) and not self.nofix:
logger.info("%s: Waiting for GPS to fix...", MY_NAME)
continue
if not isnan(session.fix.time):
if (session.fix.speed < 0.1) and (self.last_speed < 0.1):
continue
self.last_speed = session.fix.speed
# if the time is valid the data record is valid
location = Location()
location.loc_vehicle = vehicle
location.loc_time = session.utc
location.loc_latitude = session.fix.latitude
location.loc_longitude = session.fix.longitude
if (session.fix.mode == MODE_3D):
location.loc_altitude = session.fix.altitude
location.loc_speed = session.fix.speed
location.loc_climb = session.fix.climb
location.loc_track = session.fix.track
location.save()
logger.info("%s: Valid location: %s", MY_NAME, location)
else:
logger.debug("%s: Invalid location: %s", MY_NAME)
except KeyboardInterrupt:
print('\n')
break
