public String getDirection() {
return pattern.getHeadsign(stopIndex);
}
public State traverse(State state0) {
RoutingContext rctx = state0.getContext();
RoutingRequest options = state0.getOptions();
Trip trip = pattern.getTrip();
if (options.isArriveBy()) {
/* reverse traversal, not so much to do */
// do not alight immediately when arrive-depart dwell has been eliminated
// this affects multi-itinerary searches
if (state0.getBackEdge() instanceof TransitBoardAlight
&& !((TransitBoardAlight) state0.getBackEdge()).isBoarding()) {
return null;
}
StateEditor s1 = state0.edit(this);
int type = pattern.getBoardType(stopIndex);
if (TransitUtils.handleBoardAlightType(s1, type)) {
return null;
}
s1.setTripId(null);
s1.setLastAlightedTime(state0.getTime());
s1.setBackMode(TraverseMode.BOARDING);
s1.setPreviousStop(fromv);
return s1.makeState();
} else {
/* forward traversal: look for a transit trip on this pattern */
if (!options.getModes().get(modeMask)) {
return null;
}
/* find next boarding time */
/*
* check lists of transit serviceIds running yesterday, today, and tomorrow (relative to
* initial state) if this pattern's serviceId is running look for the next boarding time
* choose the soonest boarding time among trips starting yesterday, today, or tomorrow
*/
long currentTime = state0.getTime();
int bestWait = -1;
TraverseMode mode = state0.getNonTransitMode();
if (options.bannedTrips.containsKey(trip.getId())) {
// see comment in FrequencyAlight for details
return null;
}
for (ServiceDay sd : rctx.serviceDays) {
int secondsSinceMidnight = sd.secondsSinceMidnight(currentTime);
// only check for service on days that are not in the future
// this avoids unnecessarily examining tomorrow's services
if (secondsSinceMidnight < 0) continue;
if (sd.serviceIdRunning(serviceId)) {
int startTime =
pattern.getNextDepartureTime(
stopIndex,
secondsSinceMidnight,
options.wheelchairAccessible,
mode == TraverseMode.BICYCLE,
true);
if (startTime >= 0) {
// a trip was found, wait will be non-negative
int wait = (int) (sd.time(startTime) - currentTime);
if (wait < 0) _log.error("negative wait time on board");
if (bestWait < 0 || wait < bestWait) {
// track the soonest departure over all relevant schedules
bestWait = wait;
}
}
}
}
if (bestWait < 0) {
return null;
}
/* check if trip is banned for this plan */
if (options.tripIsBanned(trip)) return null;
/* check if route is preferred for this plan */
long preferences_penalty = options.preferencesPenaltyForTrip(trip);
StateEditor s1 = state0.edit(this);
int type = pattern.getBoardType(stopIndex);
if (TransitUtils.handleBoardAlightType(s1, type)) {
return null;
}
s1.incrementTimeInSeconds(bestWait);
s1.incrementNumBoardings();
s1.setTripId(trip.getId());
s1.setZone(pattern.getZone(stopIndex));
s1.setRoute(trip.getRoute().getId());
s1.setBackMode(TraverseMode.BOARDING);
long wait_cost = bestWait;
if (state0.getNumBoardings() == 0) {
wait_cost *= options.waitAtBeginningFactor;
} else {
wait_cost *= options.waitReluctance;
}
s1.incrementWeight(preferences_penalty);
s1.incrementWeight(wait_cost + options.getBoardCost(mode));
return s1.makeState();
}
}
@Override
public Trip getTrip() {
return pattern.getTrip();
}