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Matt Conway
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Apr 11, 2013
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103 changes: 103 additions & 0 deletions
103
...ripplanner-routing/src/main/java/org/opentripplanner/routing/edgetype/ModeSwitchEdge.java
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| @@ -0,0 +1,103 @@ | ||
| /* 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/>. */ | ||
|
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| package org.opentripplanner.routing.edgetype; | ||
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| import lombok.Getter; | ||
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| 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.core.TraverseModeSet; | ||
| import org.opentripplanner.routing.graph.Edge; | ||
| import org.opentripplanner.routing.graph.Vertex; | ||
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| /** | ||
| * An edge that allows switching modes, e.g. parking, renting or returning a bike or automobile. | ||
| * @author mattwigway | ||
| */ | ||
| public class ModeSwitchEdge extends Edge { | ||
| private static final long serialVersionUID = 20130410L; | ||
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| /** The modes that this edge switches from and to */ | ||
| @Getter | ||
| private TraverseMode fromMode, toMode; | ||
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| /** The cost of switching */ | ||
| @Getter | ||
| private float traverseWeight; | ||
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| /** The time, in seconds, to switch modes */ | ||
| @Getter | ||
| private int traverseTime; | ||
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| /** | ||
| * Create a new mode switching edge | ||
| * @param v The vertex to which to attach (ModeSwitchEdges are loop edges) | ||
| * @param fromMode The mode that the edge switches from | ||
| * @param toMode The mode that the edge switches to | ||
| * @param traverseCost The traversal cost of the edge | ||
| * @param traverseTime The traversal time of the edge, in seconds | ||
| */ | ||
| public ModeSwitchEdge(Vertex v, TraverseMode fromMode, TraverseMode toMode, float traverseWeight, int traverseTime) { | ||
| super(v, v); | ||
| this.fromMode = fromMode; | ||
| this.toMode = toMode; | ||
| this.traverseWeight = traverseWeight; | ||
| this.traverseTime = traverseTime; | ||
| } | ||
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| @Override | ||
| public State traverse(State s0) { | ||
| // we use non-transit mode because this is never called when the user is on transit | ||
| TraverseMode mode = s0.getNonTransitMode(); | ||
| RoutingRequest options = s0.getOptions(); | ||
| TraverseModeSet modes = options.getModes(); | ||
| boolean arriveBy = options.isArriveBy(); | ||
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| // Checks: Make sure that the mode we are switching to (the toMode in a forward search) | ||
| // is in the allowed modes, and that the current mode matches the mode we are switching | ||
| // (the fromMode in a forward search). Everything is backwards in a reverse search. | ||
| if (!arriveBy) { | ||
| if (!this.fromMode.equals(mode) || !modes.contains(toMode)) { | ||
| return null; | ||
| } | ||
| } | ||
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| if (arriveBy) { | ||
| if (!this.toMode.equals(mode) || !modes.contains(fromMode)) { | ||
| return null; | ||
| } | ||
| } | ||
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| StateEditor s1 = s0.edit(this); | ||
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| if (arriveBy) | ||
| s1.setNonTransitMode(fromMode); | ||
| else | ||
| s1.setNonTransitMode(toMode); | ||
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| s1.incrementWeight(traverseWeight); | ||
| s1.incrementTimeInSeconds(traverseTime); | ||
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| return s1.makeState(); | ||
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| } | ||
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| @Override | ||
| public String getName() { | ||
| return "ModeSwitchEdge<" + fromMode + " to " + toMode + ">"; | ||
| } | ||
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| } |