def update_positions(ride_positions):
"""
Handler for fleet backends to call when taxi positions changes. Sends the signals and stores the data in memcache.
@param ride_positions: A list of C{TaxiRidePosition}
"""
logging.info("fleet manager: positions update %s" % [rp.ride_uuid for rp in ride_positions])
fleet_signals.positions_update_signal.send(sender="fleet_manager", positions=ride_positions)
for rp in ride_positions:
key = _get_key(rp.ride_uuid)
logging.info("getting from memcache: %s, %s" % (key, FM_MEMCACHE_NAMESPACE))
cached_rp = memcache.get(key, namespace=FM_MEMCACHE_NAMESPACE)
if cached_rp:
logging.info("memcache[%s] -> %s" % (key, pickle.loads(cached_rp).__dict__))
pickled_rp = pickle.dumps(rp)
if cached_rp != pickled_rp: # this is a new position
logging.info("new position received: %s[%s:%s]" % (rp.ride_uuid, rp.lat, rp.lon))
memcache.set(key, pickled_rp, namespace=FM_MEMCACHE_NAMESPACE)
pickmeapp_ride, shared_ride = rides_from_uuid(rp.ride_uuid)
if pickmeapp_ride or shared_ride:
e = RideEvent(pickmeapp_ride=pickmeapp_ride, shared_ride=shared_ride,
status=FleetManagerRideStatus.POSITION_CHANGED, raw_status=POSITION_CHANGED, lat=rp.lat,
lon=rp.lon, taxi_id=rp.taxi_id, timestamp=rp.timestamp)
e.save()
logging.info("new ride event created: %s" % e)
if shared_ride:
for point in shared_ride.points.all():
distance = distance_between_points(point.lat, point.lon, rp.lat, rp.lon) * 1000
if distance <= DISTANCE_CONSIDERED_AS_VISITED_IN_METERS:
point.update(visited=True)
logging.info("%s %s visited" % (point.get_type_display(), point.id))
else:
logging.info("old position received: %s[%s:%s]" % (rp.ride_uuid, rp.lat, rp.lon))
def send_message(ride, message):
logging.info(u"send_message '%s' to ride: %s" % (message, ride.id))
try:
station = ride.station
assert station, "ride [%s] is not assigned to a station" % ride.id
assert station.fleet_station_id, "station %s has no fleet_station_id" % ride.station.name
assert ride.dn_fleet_manager_id, "ride [%s] is not associated with a fleet manager" % ride.id
assert ride.taxi_number, "ride [%s] is not associated with a taxi number" % ride.id
ride_fm = FleetManager.by_id(ride.dn_fleet_manager_id)
result = ride_fm.send_message(message, ride.station.fleet_station_id,
ride.taxi_number)
# log a RideEvent about his message
rp = get_ride_position(ride)
e = RideEvent(pickmeapp_ride=None,
shared_ride=ride,
status=FleetManagerRideStatus.MESSAGE_SENT,
raw_status=message,
lat=rp.lat if rp else None,
lon=rp.lon if rp else None,
taxi_id=ride.taxi_number,
timestamp=default_tz_now())
e.save()
return result
except Exception, e:
logging.error(traceback.format_exc())
return False
def update_ride(fmr):
"""
Update our db with ride data from a fleet manager.
@param fmr: A C{FleetMangerRide} containing updated data about the ride.
"""
logging.info("fleet manager: ride update %s" % fmr)
fleet_signals.fmr_update_signal.send(sender="fleet_manager", fmr=fmr)
pickmeapp_ride, shared_ride = rides_from_uuid(fmr.id)
if not (pickmeapp_ride or shared_ride):
logging.error("fleet manager: fmr update to non-existing ride")
return
e = RideEvent(pickmeapp_ride=pickmeapp_ride,
shared_ride=shared_ride,
status=fmr.status,
raw_status=fmr.raw_status,
lat=fmr.lat,
lon=fmr.lon,
taxi_id=fmr.taxi_id,
timestamp=fmr.timestamp)
e.save()
# TODO_WB: update wb_ride when we trust ISR data
wb_ride = pickmeapp_ride or shared_ride
logging.info(
"fleet manager: ride [%s] not updated. fmr_status=%s raw_status=%s)" %
(wb_ride.id, FleetManagerRideStatus.get_name(
fmr.status), fmr.raw_status))
def update_positions(ride_positions):
"""
Handler for fleet backends to call when taxi positions changes. Sends the signals and stores the data in memcache.
@param ride_positions: A list of C{TaxiRidePosition}
"""
logging.info("fleet manager: positions update %s" %
[rp.ride_uuid for rp in ride_positions])
fleet_signals.positions_update_signal.send(sender="fleet_manager",
positions=ride_positions)
for rp in ride_positions:
key = _get_key(rp.ride_uuid)
logging.info("getting from memcache: %s, %s" %
(key, FM_MEMCACHE_NAMESPACE))
cached_rp = memcache.get(key, namespace=FM_MEMCACHE_NAMESPACE)
if cached_rp:
logging.info("memcache[%s] -> %s" %
(key, pickle.loads(cached_rp).__dict__))
pickled_rp = pickle.dumps(rp)
if cached_rp != pickled_rp: # this is a new position
logging.info("new position received: %s[%s:%s]" %
(rp.ride_uuid, rp.lat, rp.lon))
memcache.set(key, pickled_rp, namespace=FM_MEMCACHE_NAMESPACE)
pickmeapp_ride, shared_ride = rides_from_uuid(rp.ride_uuid)
if pickmeapp_ride or shared_ride:
e = RideEvent(pickmeapp_ride=pickmeapp_ride,
shared_ride=shared_ride,
status=FleetManagerRideStatus.POSITION_CHANGED,
raw_status=POSITION_CHANGED,
lat=rp.lat,
lon=rp.lon,
taxi_id=rp.taxi_id,
timestamp=rp.timestamp)
e.save()
logging.info("new ride event created: %s" % e)
if shared_ride:
for point in shared_ride.points.all():
distance = distance_between_points(point.lat, point.lon,
rp.lat, rp.lon) * 1000
if distance <= DISTANCE_CONSIDERED_AS_VISITED_IN_METERS:
point.update(visited=True)
logging.info("%s %s visited" %
(point.get_type_display(), point.id))
else:
logging.info("old position received: %s[%s:%s]" %
(rp.ride_uuid, rp.lat, rp.lon))
def update_ride(fmr):
"""
Update our db with ride data from a fleet manager.
@param fmr: A C{FleetMangerRide} containing updated data about the ride.
"""
logging.info("fleet manager: ride update %s" % fmr)
fleet_signals.fmr_update_signal.send(sender="fleet_manager", fmr=fmr)
pickmeapp_ride, shared_ride = rides_from_uuid(fmr.id)
if not (pickmeapp_ride or shared_ride):
logging.error("fleet manager: fmr update to non-existing ride")
return
e = RideEvent(pickmeapp_ride=pickmeapp_ride, shared_ride=shared_ride, status=fmr.status, raw_status=fmr.raw_status,
lat=fmr.lat, lon=fmr.lon, taxi_id=fmr.taxi_id, timestamp=fmr.timestamp)
e.save()
# TODO_WB: update wb_ride when we trust ISR data
wb_ride = pickmeapp_ride or shared_ride
logging.info("fleet manager: ride [%s] not updated. fmr_status=%s raw_status=%s)" %
(wb_ride.id, FleetManagerRideStatus.get_name(fmr.status), fmr.raw_status))
def send_message(ride, message):
logging.info(u"send_message '%s' to ride: %s" % (message, ride.id))
try:
station = ride.station
assert station, "ride [%s] is not assigned to a station" % ride.id
assert station.fleet_station_id, "station %s has no fleet_station_id" % ride.station.name
assert ride.dn_fleet_manager_id, "ride [%s] is not associated with a fleet manager" % ride.id
assert ride.taxi_number, "ride [%s] is not associated with a taxi number" % ride.id
ride_fm = FleetManager.by_id(ride.dn_fleet_manager_id)
result = ride_fm.send_message(message, ride.station.fleet_station_id, ride.taxi_number)
# log a RideEvent about his message
rp = get_ride_position(ride)
e = RideEvent(pickmeapp_ride=None, shared_ride=ride,
status=FleetManagerRideStatus.MESSAGE_SENT, raw_status=message, lat=rp.lat if rp else None, lon=rp.lon if rp else None, taxi_id=ride.taxi_number, timestamp=default_tz_now())
e.save()
return result
except Exception, e:
logging.error(traceback.format_exc())
return False
