/* This program is free software: you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License
as published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
package org.opentripplanner.routing.edgetype;
import org.opentripplanner.routing.core.RoutingRequest;
import org.opentripplanner.routing.core.State;
import org.opentripplanner.routing.core.StateEditor;
import org.opentripplanner.routing.core.TraverseMode;
import org.opentripplanner.routing.graph.Edge;
import org.opentripplanner.routing.vertextype.TransitStop;
import com.vividsolutions.jts.geom.LineString;
import java.util.List;
import java.util.Locale;
/**
* Represents a transfer between stops that does not take the street network into account.
*
* TODO these should really have a set of valid modes in case bike vs. walk transfers are different
*/
public class SimpleTransfer extends Edge {
private static final long serialVersionUID = 20140408L;
private double distance;
private LineString geometry;
private List<Edge> edges;
public SimpleTransfer(TransitStop from, TransitStop to, double distance, LineString geometry, List<Edge> edges) {
super(from, to);
this.distance = distance;
this.geometry = geometry;
this.edges = edges;
}
public SimpleTransfer(TransitStop from, TransitStop to, double distance, LineString geometry) {
this(from, to, distance, geometry, null);
}
@Override
public State traverse(State s0) {
// Forbid taking shortcuts composed of two transfers in a row
if (s0.backEdge instanceof SimpleTransfer) {
return null;
}
if (s0.backEdge instanceof StreetTransitLink) {
return null;
}
if(distance > s0.getOptions().maxTransferWalkDistance) {
return null;
}
// Only transfer right after riding a vehicle.
RoutingRequest rr = s0.getOptions();
double walkspeed = rr.walkSpeed;
StateEditor se = s0.edit(this);
se.setBackMode(TraverseMode.WALK);
int time = (int) Math.ceil(distance / walkspeed) + 2 * StreetTransitLink.STL_TRAVERSE_COST;
se.incrementTimeInSeconds(time);
se.incrementWeight(time * rr.walkReluctance);
se.incrementWalkDistance(distance);
return se.makeState();
}
@Override
public String getName() {
return fromv.getName() + " => " + tov.getName();
}
@Override
public String getName(Locale locale) {
//TODO: localize
return this.getName();
}
@Override
public double weightLowerBound(RoutingRequest rr) {
int time = (int) (distance / rr.walkSpeed);
return (time * rr.walkReluctance);
}
@Override
public double getDistance(){
return this.distance;
}
@Override
public LineString getGeometry(){
return this.geometry;
}
public List<Edge> getEdges() { return this.edges; }
@Override
public String toString() {
return "SimpleTransfer " + getName();
}
}