def poll_mbta_schedule_deviations():
fetch_timestamp = int(time.time())
# fetch feed from remote server
fp = urlopen( FEED_URL )
gtfsrt_message = fp.read()
# parse it using protocol buffers
pp = grt.FeedMessage()
pp.ParseFromString( gtfsrt_message )
try:
info = Info.objects.all()[0]
if pp.header.timestamp <= info.timestamp:
print "nothing to do - already have the latest data\n"
return
except IndexError:
info = Info(timestamp = pp.header.timestamp)
ret = []
ret.append( "new timestamp %s > %s old timestamp"%(pp.header.timestamp, info.timestamp) )
info.timestamp = pp.header.timestamp
info.save()
# render it into an html response
ret.append( "%s"%pp.header )
for i, entity in enumerate( pp.entity ):
for stu in entity.trip_update.stop_time_update:
sturec = StopTimeUpdate()
sturec.trip_id = entity.trip_update.trip.trip_id
sturec.start_date = entity.trip_update.trip.start_date
sturec.stop_sequence = stu.stop_sequence
if stu.HasField( 'stop_id' ): sturec.stop_id = stu.stop_id
if stu.HasField( 'arrival' ):
if stu.arrival.HasField( 'delay' ): sturec.arrival_delay = stu.arrival.delay
if stu.arrival.HasField( 'time' ): sturec.arrival_time = stu.arrival.time
if stu.arrival.HasField( 'uncertainty' ): sturec.arrival_uncertainty = stu.arrival.uncertainty
if stu.HasField( 'departure' ):
if stu.departure.HasField( 'delay' ): sturec.departure_delay = stu.departure.delay
if stu.departure.HasField( 'time' ): sturec.departure_time = stu.departure.time
if stu.departure.HasField( 'uncertainty' ): sturec.departure_uncertainty = stu.departure.uncertainty
sturec.schedule_relationship = stu.schedule_relationship
sturec.data_timestamp = pp.header.timestamp
sturec.fetch_timestamp = fetch_timestamp
sturec.save()
ret.append( " - create stu: %s - %s"%(entity.trip_update.trip.trip_id, stu) )
#print "\n".join(ret)
print
print "%s - %s\n"%(datetime.datetime.fromtimestamp( fetch_timestamp), i)
def poll_mbta_vehicle_positions():
fetch_timestamp = int(time.time())
# fetch feed from remote server
fp = urlopen(FEED_URL)
gtfsrt_message = fp.read()
# parse it using protocol buffers
pp = grt.FeedMessage()
pp.ParseFromString(gtfsrt_message)
try:
info = Info.objects.all()[0]
if info.buspos_timestamp is not None and pp.header.timestamp <= info.buspos_timestamp:
self.stdout.write("nothing to do - already have the latest data\n")
return
except IndexError:
info = Info(buspos_timestamp=pp.header.timestamp)
ret = []
print "new timestamp %s > %s old timestamp" % (pp.header.timestamp,
info.timestamp)
info.buspos_timestamp = pp.header.timestamp
info.save()
print pp.header
for i, entity in enumerate(pp.entity):
print ".",
vprec = VehicleUpdate()
if entity.vehicle.HasField('trip'):
vprec.trip_id = entity.vehicle.trip.trip_id
vprec.start_date = entity.vehicle.trip.start_date
vprec.schedule_relationship = entity.vehicle.trip.schedule_relationship
if entity.vehicle.HasField('position'):
vprec.latitude = entity.vehicle.position.latitude
vprec.longitude = entity.vehicle.position.longitude
vprec.current_stop_sequence = entity.vehicle.current_stop_sequence
vprec.data_timestamp = entity.vehicle.timestamp
vprec.fetch_timestamp = fetch_timestamp
vprec.save()
print
print "%s - %s\n" % (datetime.datetime.fromtimestamp(fetch_timestamp), i)
def poll_mbta_vehicle_positions():
fetch_timestamp = int(time.time())
# fetch feed from remote server
fp = urlopen( FEED_URL )
gtfsrt_message = fp.read()
# parse it using protocol buffers
pp = grt.FeedMessage()
pp.ParseFromString( gtfsrt_message )
try:
info = Info.objects.all()[0]
if info.buspos_timestamp is not None and pp.header.timestamp <= info.buspos_timestamp:
self.stdout.write( "nothing to do - already have the latest data\n" )
return
except IndexError:
info = Info(buspos_timestamp = pp.header.timestamp)
ret = []
print "new timestamp %s > %s old timestamp"%(pp.header.timestamp, info.timestamp)
info.buspos_timestamp = pp.header.timestamp
info.save()
print pp.header
for i, entity in enumerate( pp.entity ):
print ".",
vprec = VehicleUpdate()
if entity.vehicle.HasField('trip'):
vprec.trip_id = entity.vehicle.trip.trip_id
vprec.start_date = entity.vehicle.trip.start_date
vprec.schedule_relationship = entity.vehicle.trip.schedule_relationship
if entity.vehicle.HasField('position'):
vprec.latitude = entity.vehicle.position.latitude
vprec.longitude = entity.vehicle.position.longitude
vprec.current_stop_sequence = entity.vehicle.current_stop_sequence
vprec.data_timestamp = entity.vehicle.timestamp
vprec.fetch_timestamp = fetch_timestamp
vprec.save()
print
print "%s - %s\n"%(datetime.datetime.fromtimestamp( fetch_timestamp), i)
