org.opentripplanner.transit.raptor.rangeraptor.debug.DebugHandlerStopArrivalAdapter Maven / Gradle / Ivy

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The OpenTripPlanner multimodal journey planning system

There is a newer version: 2.5.0

package org.opentripplanner.transit.raptor.rangeraptor.debug;

import org.opentripplanner.transit.raptor.api.request.DebugRequest;
import org.opentripplanner.transit.raptor.api.view.ArrivalView;
import org.opentripplanner.transit.raptor.rangeraptor.WorkerLifeCycle;

import java.util.LinkedList;

final class DebugHandlerStopArrivalAdapter extends AbstractDebugHandlerAdapter> {

    DebugHandlerStopArrivalAdapter(DebugRequest debug, WorkerLifeCycle lifeCycle) {
        super(debug, debug.stopArrivalListener(), lifeCycle);
    }

    @Override
    protected int stop(ArrivalView arrival) {
        return arrival.stop();
    }

    @Override
    protected Iterable stopsVisited(ArrivalView arrival) {
        return listStopsForDebugging(arrival);
    }

    /**
     * List all stops used to arrive at current stop arrival. This method can be SLOW,
     * should only be used in code that does not need to be fast, like debugging.
     */
    private Iterable listStopsForDebugging(ArrivalView it) {
        LinkedList stops = new LinkedList<>();

        while (!it.arrivedByAccess()) {
            stops.addFirst(it.stop());
            it = it.previous();
        }
        stops.addFirst(it.stop());

        return stops;
    }
}