public ArrivalAndDepartureInstance getArrivalAndDepartureForStop(
ArrivalAndDepartureQuery query) {
StopEntry stop = query.getStop();
int stopSequence = query.getStopSequence();
TripEntry trip = query.getTrip();
long serviceDate = query.getServiceDate();
AgencyAndId vehicleId = query.getVehicleId();
long time = query.getTime();
Map<BlockInstance, List<BlockLocation>> locationsByInstance = _blockStatusService.getBlocks(
trip.getBlock().getId(), serviceDate, vehicleId, time);
if (locationsByInstance.isEmpty())
return null;
Map.Entry<BlockInstance, List<BlockLocation>> entry = locationsByInstance.entrySet().iterator().next();
BlockInstance blockInstance = entry.getKey();
List<BlockLocation> locations = entry.getValue();
int timeOfServiceDate = (int) ((time - serviceDate) / 1000);
ArrivalAndDepartureInstance instance = createArrivalAndDeparture(
blockInstance, trip.getId(), stop.getId(), stopSequence, serviceDate,
timeOfServiceDate, time);
if (!locations.isEmpty()) {
/**