/**
* Copyright (C) 2011 Brian Ferris <bdferris@onebusaway.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onebusaway.transit_data_federation.impl.otp.graph;
import org.onebusaway.transit_data_federation.impl.otp.GraphContext;
import org.onebusaway.transit_data_federation.impl.otp.OBATraverseOptions;
import org.onebusaway.transit_data_federation.services.realtime.ArrivalAndDepartureInstance;
import org.opentripplanner.routing.core.EdgeNarrative;
import org.opentripplanner.routing.core.State;
import org.opentripplanner.routing.core.TraverseOptions;
import org.opentripplanner.routing.core.Vertex;
public class ArrivalEdge extends AbstractEdge {
private final ArrivalAndDepartureInstance _instance;
public ArrivalEdge(GraphContext context, ArrivalAndDepartureInstance instance) {
super(context);
_instance = instance;
}
@Override
public State traverse(State s0) {
TraverseOptions options = s0.getOptions();
if (options.isArriveBy())
return traverseReverse(s0);
else
return traverseForward(s0);
}
private State traverseForward(State s0) {
OBATraverseOptions obaOpts = (OBATraverseOptions) s0.getOptions();
if (obaOpts.extraSpecialMode)
return null;
EdgeNarrative narrative = createNarrative(s0);
return s0.edit(this, narrative).makeState();
}
private State traverseReverse(State s0) {
EdgeNarrative narrative = createNarrative(s0);
return s0.edit(this, narrative).makeState();
}
/****
* Private Methods
****/
private EdgeNarrative createNarrative(State s0) {
Vertex fromVertex = new BlockArrivalVertex(_context, _instance);
Vertex toVertex = new ArrivalVertex(_context, _instance.getStop(),
s0.getTime());
return narrative(s0, fromVertex, toVertex);
}
}