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https://github.com/graphhopper/jsprit.git
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vis
This commit is contained in:
oblonski
parent
9c857962d6
commit
b702c8015b
2 changed files with 394 additions and 57 deletions
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@ -24,14 +24,15 @@ import jsprit.core.algorithm.recreate.listener.BeforeJobInsertionListener;
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import jsprit.core.algorithm.recreate.listener.InsertionEndsListener;
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import jsprit.core.algorithm.recreate.listener.InsertionStartsListener;
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import jsprit.core.algorithm.ruin.listener.RuinListener;
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import jsprit.core.problem.AbstractActivity;
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import jsprit.core.problem.VehicleRoutingProblem;
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import jsprit.core.problem.job.Job;
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import jsprit.core.problem.job.Service;
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import jsprit.core.problem.job.*;
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import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
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import jsprit.core.problem.solution.route.VehicleRoute;
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import jsprit.core.problem.solution.route.activity.TourActivity;
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import jsprit.core.problem.vehicle.Vehicle;
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import jsprit.core.problem.vehicle.VehicleImpl;
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import jsprit.core.util.Coordinate;
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import jsprit.core.util.Solutions;
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import org.graphstream.graph.Edge;
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import org.graphstream.graph.Graph;
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@ -43,11 +44,19 @@ import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.Collection;
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import java.util.List;
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public class AlgorithmEventRecorder implements RuinListener, IterationStartsListener, InsertionStartsListener, BeforeJobInsertionListener, InsertionEndsListener, AlgorithmEndsListener {
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private boolean renderShipments = false;
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public static void writeSolution(VehicleRoutingProblem vrp, VehicleRoutingProblemSolution solution, File outfile){
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AlgorithmEventRecorder rec = new AlgorithmEventRecorder(vrp,outfile);
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rec.initialiseGraph(vrp);
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rec.addRoutes(solution.getRoutes());
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rec.finish();
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}
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public static enum RecordPolicy {
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RECORD_AND_WRITE
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@ -75,7 +84,10 @@ public class AlgorithmEventRecorder implements RuinListener, IterationStartsList
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private int currentIteration = 0;
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private VehicleRoutingProblem vrp;
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public AlgorithmEventRecorder(VehicleRoutingProblem vrp, File outfile) {
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this.vrp = vrp;
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graph = new MultiGraph("g");
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try {
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writer = new FileWriter(outfile);
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@ -88,6 +100,11 @@ public class AlgorithmEventRecorder implements RuinListener, IterationStartsList
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initialiseGraph(vrp);
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}
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public AlgorithmEventRecorder(VehicleRoutingProblem vrp, File outfile, boolean renderShipments) {
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this.renderShipments = renderShipments;
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new AlgorithmEventRecorder(vrp,outfile);
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}
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public void setRecordingRange(int startIteration, int endIteration){
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this.start_recording_at = startIteration;
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this.end_recording_at = endIteration;
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@ -114,23 +131,41 @@ public class AlgorithmEventRecorder implements RuinListener, IterationStartsList
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public void ruinStarts(Collection<VehicleRoute> routes) {
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if(!record()) return;
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fileSink.stepBegins(graph.getId(),0,BEFORE_RUIN_RENDER_SOLUTION);
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recordRoutes(routes);
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addRoutes(routes);
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fileSink.stepBegins(graph.getId(),0,RUIN);
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}
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private void recordRoutes(Collection<VehicleRoute> routes) {
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private void addRoutes(Collection<VehicleRoute> routes) {
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for(VehicleRoute route : routes){
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String prevNode = makeStartId(route.getVehicle());
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for(TourActivity act : route.getActivities()){
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String actNode = ((TourActivity.JobActivity)act).getJob().getId();
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addEdge(prevNode+"_"+actNode,prevNode,actNode);
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prevNode = actNode;
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String actNodeId = getNodeId(act);
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addEdge(prevNode+"_"+actNodeId,prevNode,actNodeId);
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prevNode = actNodeId;
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}
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String lastNode = makeEndId(route.getVehicle());
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addEdge(prevNode+"_"+lastNode,prevNode,lastNode);
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if(route.getVehicle().isReturnToDepot()) {
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String lastNode = makeEndId(route.getVehicle());
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addEdge(prevNode+"_"+lastNode,prevNode,lastNode);
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}
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}
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}
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private String getNodeId(TourActivity act) {
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String nodeId = null;
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if(act instanceof TourActivity.JobActivity){
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Job job = ((TourActivity.JobActivity) act).getJob();
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if(job instanceof Service){
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nodeId = job.getId();
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}
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else if(job instanceof Shipment){
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if(act.getName().equals("pickupShipment")) nodeId = getFromNodeId((Shipment) job);
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else nodeId = getToNodeId((Shipment) job);
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}
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}
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return nodeId;
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}
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private boolean record() {
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return currentIteration >= start_recording_at && currentIteration <= end_recording_at;
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}
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@ -143,19 +178,99 @@ public class AlgorithmEventRecorder implements RuinListener, IterationStartsList
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@Override
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public void removed(Job job, VehicleRoute fromRoute) {
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if(!record()) return;
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if(job instanceof Service) removeService(job, fromRoute);
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else if(job instanceof Shipment) removeShipment(job,fromRoute);
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}
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private void removeShipment(Job job, VehicleRoute fromRoute) {
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Shipment shipment = (Shipment)job;
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String fromNodeId = getFromNodeId(shipment);
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String toNodeId = getToNodeId(shipment);
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// removeNodeAndBelongingEdges(fromNodeId,fromRoute);
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// removeNodeAndBelongingEdges(toNodeId,fromRoute);
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Edge enteringToNode = getEnteringEdge(toNodeId);
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if(enteringToNode.getNode0().getId().equals(fromNodeId)){
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markRemoved(graph.getNode(fromNodeId));
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markRemoved(graph.getNode(toNodeId));
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// i -> from -> to -> j: rem(i,from), rem(from,to), rem(to,j), add(i,j)
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Edge enteringFromNode = getEnteringEdge(fromNodeId);
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removeEdge(enteringFromNode.getId());
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removeEdge(enteringToNode.getId());
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if(graph.getNode(toNodeId).getLeavingEdgeSet().isEmpty()){
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if(fromRoute.getVehicle().isReturnToDepot()) throw new IllegalStateException("leaving edge is missing");
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return;
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}
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Edge leavingToNode = getLeavingEdge(toNodeId);
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removeEdge(leavingToNode.getId());
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Node from = enteringFromNode.getNode0();
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Node to = leavingToNode.getNode1();
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if(!fromRoute.getActivities().isEmpty()){
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addEdge(makeEdgeId(from,to),from.getId(),to.getId());
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}
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}
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else{
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removeNodeAndBelongingEdges(fromNodeId,fromRoute);
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removeNodeAndBelongingEdges(toNodeId,fromRoute);
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}
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}
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private Edge getLeavingEdge(String toNodeId) {
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Collection<Edge> edges = graph.getNode(toNodeId).getLeavingEdgeSet();
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if(edges.size()==1) return edges.iterator().next();
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else{
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for(Edge e : edges){
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if(e.getId().startsWith("shipment")){ continue; }
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return e;
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}
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}
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return null;
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}
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private Edge getEnteringEdge(String toNodeId) {
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Collection<Edge> enteringEdges = graph.getNode(toNodeId).getEnteringEdgeSet();
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if(enteringEdges.size()==1) return enteringEdges.iterator().next();
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else{
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for(Edge e : enteringEdges){
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if(e.getId().startsWith("shipment")){ continue; }
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return e;
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}
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}
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return null;
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}
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private String getToNodeId(Shipment shipment) {
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return shipment.getId() + "_delivery";
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}
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private String getFromNodeId(Shipment shipment) {
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return shipment.getId() + "_pickup";
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}
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private void removeService(Job job, VehicleRoute fromRoute) {
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String nodeId = job.getId();
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removeNodeAndBelongingEdges(nodeId, fromRoute);
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}
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private void removeNodeAndBelongingEdges(String nodeId, VehicleRoute fromRoute) {
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Node node = graph.getNode(nodeId);
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markRemoved(node);
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Edge entering = node.getEnteringEdge(0);
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Edge entering = getEnteringEdge(nodeId);
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removeEdge(entering.getId());
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Edge leaving = node.getLeavingEdge(0);
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if(node.getLeavingEdgeSet().isEmpty()){
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if(fromRoute.getVehicle().isReturnToDepot()) throw new IllegalStateException("leaving edge is missing");
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return;
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}
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Edge leaving = getLeavingEdge(nodeId);
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removeEdge((leaving.getId()));
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Node from = entering.getNode0();
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Node to = leaving.getNode1();
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if(!fromRoute.getActivities().isEmpty()){
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addEdge(makeEdgeId(from,to),from.getId(),to.getId());
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}
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}
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private void markRemoved(Node node) {
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@ -170,7 +285,11 @@ public class AlgorithmEventRecorder implements RuinListener, IterationStartsList
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public void informAlgorithmEnds(VehicleRoutingProblem problem, Collection<VehicleRoutingProblemSolution> solutions) {
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VehicleRoutingProblemSolution solution = Solutions.bestOf(solutions);
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fileSink.stepBegins(graph.getId(),0,BEFORE_RUIN_RENDER_SOLUTION);
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recordRoutes(solution.getRoutes());
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addRoutes(solution.getRoutes());
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finish();
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}
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private void finish() {
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try {
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fileSink.end();
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writer.close();
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@ -189,10 +308,50 @@ public class AlgorithmEventRecorder implements RuinListener, IterationStartsList
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addVehicle(vehicle);
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}
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for(Job job : problem.getJobs().values()){
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Service service = (Service)job;
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addService(service);
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addJob(job);
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}
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}
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private void addJob(Job job) {
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if(job instanceof Service){
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Service service = (Service)job;
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addNode(service.getId(), service.getCoord());
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markService(service);
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}
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else if(job instanceof Shipment){
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Shipment shipment = (Shipment)job;
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String fromNodeId = getFromNodeId(shipment);
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addNode(fromNodeId, shipment.getPickupCoord());
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String toNodeId = getToNodeId(shipment);
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addNode(toNodeId,shipment.getDeliveryCoord());
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markShipment(shipment);
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if(renderShipments) {
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Edge e = graph.addEdge("shipment_" + fromNodeId + "_" + toNodeId, fromNodeId, toNodeId, true);
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e.addAttribute("ui.class", "shipment");
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}
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}
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}
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private void markShipment(Shipment shipment) {
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markPickup(getFromNodeId(shipment));
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markDelivery(getToNodeId(shipment));
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}
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private void markService(Service service) {
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if(service instanceof Pickup){
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markPickup(service.getId());
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}
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else if(service instanceof Delivery){
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markDelivery(service.getId());
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}
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}
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private void markPickup(String id) {
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graph.getNode(id).addAttribute("ui.class","pickup");
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}
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private void markDelivery(String id) {
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graph.getNode(id).addAttribute("ui.class","delivery");
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}
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private void addVehicle(Vehicle vehicle) {
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@ -220,25 +379,31 @@ public class AlgorithmEventRecorder implements RuinListener, IterationStartsList
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return vehicle.getId() + "_end";
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}
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private void addService(Service service) {
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Node serviceNode = graph.addNode(service.getId());
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serviceNode.addAttribute("x", service.getCoord().getX());
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serviceNode.addAttribute("y", service.getCoord().getY());
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private void addNode(String nodeId, Coordinate nodeCoord) {
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Node node = graph.addNode(nodeId);
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node.addAttribute("x", nodeCoord.getX());
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node.addAttribute("y", nodeCoord.getY());
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}
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@Override
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public void informInsertionEnds(Collection<VehicleRoute> vehicleRoutes) {
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if(!record()) return;
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fileSink.stepBegins(graph.getId(),0,CLEAR_SOLUTION);
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removeRoutes(vehicleRoutes);
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}
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private void removeRoutes(Collection<VehicleRoute> vehicleRoutes) {
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for(VehicleRoute route : vehicleRoutes){
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String prevNode = makeStartId(route.getVehicle());
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for(TourActivity act : route.getActivities()){
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String actNode = ((TourActivity.JobActivity)act).getJob().getId();
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String actNode = getNodeId(act);
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removeEdge(prevNode + "_" + actNode);
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prevNode = actNode;
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}
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String lastNode = makeEndId(route.getVehicle());
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removeEdge(prevNode + "_" + lastNode);
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if(route.getVehicle().isReturnToDepot()) {
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String lastNode = makeEndId(route.getVehicle());
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removeEdge(prevNode + "_" + lastNode);
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}
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}
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}
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@ -246,6 +411,66 @@ public class AlgorithmEventRecorder implements RuinListener, IterationStartsList
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public void informBeforeJobInsertion(Job job, InsertionData data, VehicleRoute route) {
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if(!record()) return;
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markInserted(job);
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handleVehicleSwitch(data, route);
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insertJob(job, data, route);
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}
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private void insertJob(Job job, InsertionData data, VehicleRoute route) {
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if(job instanceof Service) insertService(job,data,route);
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else if(job instanceof Shipment) insertShipment(job,data,route);
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}
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private void insertShipment(Job job, InsertionData data, VehicleRoute route) {
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String fromNodeId = getFromNodeId((Shipment) job);
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String toNodeId = getToNodeId((Shipment) job);
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insertNode(toNodeId,data.getDeliveryInsertionIndex(),data,route);
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List<AbstractActivity> del = vrp.getActivities(job);
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VehicleRoute copied = VehicleRoute.copyOf(route);
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copied.getTourActivities().addActivity(data.getDeliveryInsertionIndex(),del.get(1));
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insertNode(fromNodeId, data.getPickupInsertionIndex(), data, copied);
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}
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private void insertService(Job job, InsertionData data, VehicleRoute route) {
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insertNode(job.getId(), data.getDeliveryInsertionIndex(), data, route);
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}
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private void insertNode(String nodeId, int insertionIndex, InsertionData data, VehicleRoute route) {
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// VehicleRoute copied = VehicleRoute.copyOf(route);
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String node_i;
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if(isFirst(insertionIndex,route)) {
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node_i = makeStartId(data.getSelectedVehicle());
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}
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else {
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TourActivity.JobActivity jobActivity = (TourActivity.JobActivity) route.getActivities().get(insertionIndex - 1);
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node_i = getNodeId(jobActivity);
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}
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String node_k = nodeId;
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String edgeId_1 = node_i + "_" + node_k;
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String node_j;
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if(isLast(insertionIndex,route)) {
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node_j = makeEndId(data.getSelectedVehicle());
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}
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else {
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TourActivity.JobActivity jobActivity = (TourActivity.JobActivity) route.getActivities().get(insertionIndex);
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node_j = getNodeId(jobActivity);
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}
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String edgeId_2 = node_k + "_" + node_j;
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addEdge(edgeId_1, node_i, node_k);
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if(!(isLast(insertionIndex,route) && !data.getSelectedVehicle().isReturnToDepot())) {
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addEdge(edgeId_2, node_k, node_j);
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if (!route.getActivities().isEmpty()) {
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removeEdge(node_i + "_" + node_j);
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}
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}
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}
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private void handleVehicleSwitch(InsertionData data, VehicleRoute route) {
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boolean vehicleSwitch = false;
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if(!(route.getVehicle() instanceof VehicleImpl.NoVehicle)) {
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if (!route.getVehicle().getId().equals(data.getSelectedVehicle().getId())) {
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@ -258,56 +483,55 @@ public class AlgorithmEventRecorder implements RuinListener, IterationStartsList
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String oldEnd = makeEndId(route.getVehicle());
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String lastAct = ((TourActivity.JobActivity)route.getActivities().get(route.getActivities().size()-1)).getJob().getId();
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removeEdge(oldStart + "_" + firstAct);
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removeEdge(lastAct + "_" + oldEnd);
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if(route.getVehicle().isReturnToDepot()) {
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removeEdge(lastAct + "_" + oldEnd);
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}
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String newStart = makeStartId(data.getSelectedVehicle());
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String newEnd = makeEndId(data.getSelectedVehicle());
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addEdge(newStart + "_" + firstAct,newStart,firstAct);
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addEdge(lastAct + "_" + newEnd, lastAct,newEnd);
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}
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String node_i;
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if(isFirst(data,route)) {
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node_i = makeStartId(data.getSelectedVehicle());
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}
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else {
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node_i = ((TourActivity.JobActivity)route.getActivities().get(data.getDeliveryInsertionIndex()-1)).getJob().getId();
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}
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String node_k = job.getId();
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String edgeId_1 = node_i + "_" + node_k;
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String node_j;
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if(isLast(data,route)) {
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node_j = makeEndId(data.getSelectedVehicle());
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}
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else {
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node_j = ((TourActivity.JobActivity)route.getActivities().get(data.getDeliveryInsertionIndex())).getJob().getId();
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}
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String edgeId_2 = node_k + "_" + node_j;
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addEdge(edgeId_1, node_i, node_k);
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addEdge(edgeId_2, node_k, node_j);
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if(!route.getActivities().isEmpty()){
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removeEdge(node_i + "_" + node_j);
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if(data.getSelectedVehicle().isReturnToDepot()) {
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addEdge(lastAct + "_" + newEnd, lastAct, newEnd);
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}
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}
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}
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private void markInserted(Job job) {
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graph.getNode(job.getId()).removeAttribute("ui.class");
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if(job instanceof Service){
|
||||
markService((Service) job);
|
||||
}
|
||||
else{
|
||||
markShipment((Shipment)job);
|
||||
}
|
||||
}
|
||||
|
||||
private void removeEdge(String edgeId) {
|
||||
markEdgeRemoved(edgeId);
|
||||
graph.removeEdge(edgeId);
|
||||
}
|
||||
|
||||
private boolean isFirst(InsertionData data, VehicleRoute route) {
|
||||
return data.getDeliveryInsertionIndex() == 0;
|
||||
private void markEdgeRemoved(String edgeId) {
|
||||
graph.getEdge(edgeId).addAttribute("ui.class","removed");
|
||||
}
|
||||
|
||||
private boolean isLast(InsertionData data, VehicleRoute route) {
|
||||
return data.getDeliveryInsertionIndex() == route.getActivities().size();
|
||||
private boolean isFirst(int index, VehicleRoute route) {
|
||||
return index == 0;
|
||||
}
|
||||
|
||||
private boolean isLast(int index, VehicleRoute route) {
|
||||
return index == route.getActivities().size();
|
||||
}
|
||||
|
||||
private void addEdge(String edgeId, String fromNode, String toNode) {
|
||||
graph.addEdge(edgeId,fromNode,toNode,true);
|
||||
markEdgeInserted(edgeId);
|
||||
}
|
||||
|
||||
private void markEdgeInserted(String edgeId) {
|
||||
graph.getEdge(edgeId).addAttribute("ui.class","inserted");
|
||||
graph.getEdge(edgeId).removeAttribute("ui.class");
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -33,16 +33,95 @@ import org.graphstream.graph.Edge;
|
|||
import org.graphstream.graph.Graph;
|
||||
import org.graphstream.graph.Node;
|
||||
import org.graphstream.graph.implementations.MultiGraph;
|
||||
import org.graphstream.stream.Sink;
|
||||
import org.graphstream.stream.file.FileSinkImages;
|
||||
import org.graphstream.ui.swingViewer.View;
|
||||
import org.graphstream.ui.swingViewer.Viewer;
|
||||
|
||||
import javax.swing.*;
|
||||
import java.awt.*;
|
||||
|
||||
import java.io.File;
|
||||
|
||||
|
||||
public class GraphStreamViewer {
|
||||
|
||||
private static class EmptySink implements Sink {
|
||||
|
||||
@Override
|
||||
public void graphAttributeAdded(String sourceId, long timeId, String attribute, Object value) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void graphAttributeChanged(String sourceId, long timeId, String attribute, Object oldValue, Object newValue) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void graphAttributeRemoved(String sourceId, long timeId, String attribute) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void nodeAttributeAdded(String sourceId, long timeId, String nodeId, String attribute, Object value) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void nodeAttributeChanged(String sourceId, long timeId, String nodeId, String attribute, Object oldValue, Object newValue) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void nodeAttributeRemoved(String sourceId, long timeId, String nodeId, String attribute) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void edgeAttributeAdded(String sourceId, long timeId, String edgeId, String attribute, Object value) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void edgeAttributeChanged(String sourceId, long timeId, String edgeId, String attribute, Object oldValue, Object newValue) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void edgeAttributeRemoved(String sourceId, long timeId, String edgeId, String attribute) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void nodeAdded(String sourceId, long timeId, String nodeId) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void nodeRemoved(String sourceId, long timeId, String nodeId) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void edgeAdded(String sourceId, long timeId, String edgeId, String fromNodeId, String toNodeId, boolean directed) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void edgeRemoved(String sourceId, long timeId, String edgeId) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void graphCleared(String sourceId, long timeId) {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void stepBegins(String sourceId, long timeId, double step) {
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
public static Graph createMultiGraph(String name, String style){
|
||||
Graph g = new MultiGraph(name);
|
||||
|
|
@ -143,6 +222,12 @@ public class GraphStreamViewer {
|
|||
|
||||
private double scaling = 1.0;
|
||||
|
||||
private boolean createImageByEvent = false;
|
||||
|
||||
private File imageDirectory;
|
||||
|
||||
Sink fsi = new EmptySink();
|
||||
|
||||
public GraphStreamViewer(VehicleRoutingProblem vrp) {
|
||||
super();
|
||||
this.vrp = vrp;
|
||||
|
|
@ -159,6 +244,12 @@ public class GraphStreamViewer {
|
|||
return this;
|
||||
}
|
||||
|
||||
public GraphStreamViewer createImagesByEvent(boolean createImanges, File outDirectory){
|
||||
createImageByEvent = true;
|
||||
imageDirectory = outDirectory;
|
||||
return this;
|
||||
}
|
||||
|
||||
public GraphStreamViewer setRenderDelay(long ms){
|
||||
this.renderDelay_in_ms=ms;
|
||||
return this;
|
||||
|
|
@ -204,7 +295,21 @@ public class GraphStreamViewer {
|
|||
|
||||
JFrame jframe = createJFrame(view,scaling);
|
||||
|
||||
render(g,view);
|
||||
Sink fsi;
|
||||
if(createImageByEvent){
|
||||
FileSinkImages.OutputPolicy outputPolicy = FileSinkImages.OutputPolicy.BY_ELEMENT_EVENT;
|
||||
String prefix = "screenshot_";
|
||||
FileSinkImages.OutputType type = FileSinkImages.OutputType.PNG;
|
||||
FileSinkImages.Resolution resolution = FileSinkImages.Resolutions.HD720;
|
||||
fsi = new FileSinkImages( type, resolution );
|
||||
((FileSinkImages)fsi).setStyleSheet(STYLESHEET);
|
||||
((FileSinkImages)fsi).setOutputPolicy(outputPolicy);
|
||||
((FileSinkImages)fsi).setLayoutPolicy(FileSinkImages.LayoutPolicy.NO_LAYOUT);
|
||||
((FileSinkImages)fsi).setQuality(FileSinkImages.Quality.HIGH);
|
||||
((FileSinkImages)fsi).setRenderer(FileSinkImages.RendererType.SCALA);
|
||||
}
|
||||
|
||||
render(g, view);
|
||||
}
|
||||
|
||||
private JFrame createJFrame(View view, double scaling) {
|
||||
|
|
@ -254,8 +359,7 @@ public class GraphStreamViewer {
|
|||
private void render(Graph g, View view) {
|
||||
if(center != null){
|
||||
view.resizeFrame(view.getWidth(), view.getHeight());
|
||||
view.getCamera().setViewCenter(center.x, center.y, 0);
|
||||
view.getCamera().setViewPercent(zoomFactor);
|
||||
alignCamera(view);
|
||||
}
|
||||
|
||||
for(Vehicle vehicle : vrp.getVehicles()){
|
||||
|
|
@ -284,7 +388,16 @@ public class GraphStreamViewer {
|
|||
|
||||
}
|
||||
|
||||
private JLabel createEmptyLabel() {
|
||||
private void alignCamera(View view) {
|
||||
view.getCamera().setViewCenter(center.x, center.y, 0);
|
||||
view.getCamera().setViewPercent(zoomFactor);
|
||||
if(fsi instanceof FileSinkImages){
|
||||
((FileSinkImages) fsi).setViewCenter(center.x, center.y);
|
||||
((FileSinkImages) fsi).setViewPercent(zoomFactor);
|
||||
}
|
||||
}
|
||||
|
||||
private JLabel createEmptyLabel() {
|
||||
JLabel emptyLabel1 = new JLabel();
|
||||
emptyLabel1.setPreferredSize(new Dimension((int)(40*scaling),(int)(25*scaling)));
|
||||
return emptyLabel1;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue