*/
private BlockLocation getBlockLocation(BlockInstance blockInstance,
VehicleLocationCacheElements cacheElements,
ScheduledBlockLocation scheduledLocation, long targetTime) {
BlockLocation location = new BlockLocation();
location.setTime(targetTime);
location.setBlockInstance(blockInstance);
VehicleLocationCacheElement cacheElement = null;
if (cacheElements != null)
cacheElement = cacheElements.getElementForTimestamp(targetTime);
if (cacheElement != null) {
VehicleLocationRecord record = cacheElement.getRecord();
if (scheduledLocation == null)
scheduledLocation = getScheduledBlockLocationForVehicleLocationCacheRecord(
blockInstance, cacheElement, targetTime);
if (scheduledLocation != null) {
location.setEffectiveScheduleTime(scheduledLocation.getScheduledTime());
location.setDistanceAlongBlock(scheduledLocation.getDistanceAlongBlock());
}
location.setPredicted(true);
location.setLastUpdateTime(record.getTimeOfRecord());
location.setLastLocationUpdateTime(record.getTimeOfLocationUpdate());
location.setScheduleDeviation(record.getScheduleDeviation());
location.setScheduleDeviations(cacheElement.getScheduleDeviations());
if (record.isCurrentLocationSet()) {
CoordinatePoint p = new CoordinatePoint(record.getCurrentLocationLat(),
record.getCurrentLocationLon());
location.setLastKnownLocation(p);
}
location.setOrientation(record.getCurrentOrientation());
location.setPhase(record.getPhase());
location.setStatus(record.getStatus());
location.setVehicleId(record.getVehicleId());
List<TimepointPredictionRecord> timepointPredictions = record.getTimepointPredictions();
if (timepointPredictions != null && !timepointPredictions.isEmpty()) {
SortedMap<Integer, Double> scheduleDeviations = new TreeMap<Integer, Double>();
BlockConfigurationEntry blockConfig = blockInstance.getBlock();
for (TimepointPredictionRecord tpr : timepointPredictions) {
AgencyAndId stopId = tpr.getTimepointId();
long predictedTime = tpr.getTimepointPredictedTime();
if (stopId == null || predictedTime == 0)
continue;
for (BlockStopTimeEntry blockStopTime : blockConfig.getStopTimes()) {
StopTimeEntry stopTime = blockStopTime.getStopTime();
StopEntry stop = stopTime.getStop();
if (stopId.equals(stop.getId())) {
int arrivalTime = stopTime.getArrivalTime();
int deviation = (int) ((tpr.getTimepointPredictedTime() - blockInstance.getServiceDate()) / 1000 - arrivalTime);
scheduleDeviations.put(arrivalTime, (double) deviation);
}
}
}
double[] scheduleTimes = new double[scheduleDeviations.size()];
double[] scheduleDeviationMus = new double[scheduleDeviations.size()];
double[] scheduleDeviationSigmas = new double[scheduleDeviations.size()];
int index = 0;
for (Map.Entry<Integer, Double> entry : scheduleDeviations.entrySet()) {
scheduleTimes[index] = entry.getKey();
scheduleDeviationMus[index] = entry.getValue();
index++;
}
ScheduleDeviationSamples samples = new ScheduleDeviationSamples(
scheduleTimes, scheduleDeviationMus, scheduleDeviationSigmas);
location.setScheduleDeviations(samples);
}
} else {
if (scheduledLocation == null)
scheduledLocation = getScheduledBlockLocationForBlockInstance(
blockInstance, targetTime);
}
/**
* Will be null in the following cases:
*
* 1) When the effective schedule time is beyond the last scheduled stop
* time for the block.
*
* 2) When the effective distance along block is outside the range of the
* block's shape.
*/
if (scheduledLocation == null)
return null;
location.setInService(scheduledLocation.isInService());
location.setActiveTrip(scheduledLocation.getActiveTrip());
location.setLocation(scheduledLocation.getLocation());
location.setOrientation(scheduledLocation.getOrientation());
location.setScheduledDistanceAlongBlock(scheduledLocation.getDistanceAlongBlock());
location.setClosestStop(scheduledLocation.getClosestStop());
location.setClosestStopTimeOffset(scheduledLocation.getClosestStopTimeOffset());
location.setNextStop(scheduledLocation.getNextStop());
location.setNextStopTimeOffset(scheduledLocation.getNextStopTimeOffset());
location.setPreviousStop(scheduledLocation.getPreviousStop());
return location;
}