org.opentripplanner.routing.algorithm.raptoradapter.transit.frequency.TripFrequencyBoardSearch Maven / Gradle / Ivy
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The OpenTripPlanner multimodal journey planning system
package org.opentripplanner.routing.algorithm.raptoradapter.transit.frequency;
import org.opentripplanner.routing.algorithm.raptoradapter.transit.request.TripPatternForDates;
import org.opentripplanner.routing.trippattern.FrequencyEntry;
import org.opentripplanner.routing.trippattern.TripTimes;
import org.opentripplanner.transit.raptor.api.transit.IntIterator;
import org.opentripplanner.transit.raptor.api.transit.RaptorTripSchedule;
import org.opentripplanner.transit.raptor.api.transit.RaptorTripScheduleBoardOrAlightEvent;
import org.opentripplanner.transit.raptor.api.transit.RaptorTripScheduleSearch;
/**
* Searches for a concrete trip time for a frequency based pattern. The {@link FrequencyEntry}s are
* scanned to find the latest possible alighting time.
*/
public final class TripFrequencyBoardSearch implements RaptorTripScheduleSearch {
private final TripPatternForDates patternForDates;
public TripFrequencyBoardSearch(TripPatternForDates patternForDates) {
this.patternForDates = patternForDates;
}
@Override
public RaptorTripScheduleBoardOrAlightEvent search(
int earliestBoardTime,
int stopPositionInPattern,
int tripIndexLimit
) {
IntIterator indexIterator = patternForDates.tripPatternForDatesIndexIterator(true);
while (indexIterator.hasNext()) {
int i = indexIterator.next();
var pattern = patternForDates.tripPatternForDate(i);
int offset = patternForDates.tripPatternForDateOffsets(i);
for (var frequency : pattern.getFrequencies()) {
var departureTime = frequency.nextDepartureTime(stopPositionInPattern, earliestBoardTime - offset);
if (departureTime != -1) {
int headway = frequency.exactTimes ? 0 : frequency.headway;
TripTimes tripTimes = frequency.materialize(
stopPositionInPattern,
departureTime - headway,
true
);
return new FrequencyBoardingEvent<>(
patternForDates,
tripTimes,
pattern.getTripPattern().getPattern(),
stopPositionInPattern,
departureTime - headway,
headway,
offset,
pattern.getLocalDate()
);
}
}
}
return null;
}
}