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oblonski 2015-02-04 08:46:31 +01:00
parent e10ea34dd3
commit a0419ab3fd
6 changed files with 85 additions and 82 deletions

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@ -2,9 +2,11 @@ package jsprit.core.algorithm;
import jsprit.core.algorithm.box.SchrimpfFactory;
import jsprit.core.problem.AbstractJob;
import jsprit.core.problem.Location;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.VehicleRoutingProblem.FleetSize;
import jsprit.core.problem.job.Service;
import jsprit.core.problem.job.Shipment;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
import jsprit.core.problem.solution.route.VehicleRoute;
@ -14,7 +16,6 @@ import jsprit.core.problem.vehicle.VehicleImpl;
import jsprit.core.problem.vehicle.VehicleImpl.Builder;
import jsprit.core.problem.vehicle.VehicleType;
import jsprit.core.problem.vehicle.VehicleTypeImpl;
import jsprit.core.reporting.SolutionPrinter;
import jsprit.core.util.Coordinate;
import jsprit.core.util.Solutions;
import org.junit.Test;
@ -27,26 +28,52 @@ import static org.junit.Assert.assertFalse;
public class PDTW_IT {
int nShipments = 200;
int nVehicles = 15;
int nJobs = 200;
int nVehicles = 40;
Random random = new Random(1623);
int nextShipmentId=1;
int nextVehicleId=1;
@Test
public void timeWindowsShouldNOTbeBroken() {
public void whenDealingWithShipments_timeWindowsShouldNOTbeBroken() {
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
for(int i =0 ; i < nVehicles ; i++){
vrpBuilder.addVehicle(createVehicle());
}
for(int i =0 ; i < nShipments ;i++){
for(int i =0 ; i < nJobs;i++){
vrpBuilder.addJob(createShipment());
}
vrpBuilder.setFleetSize(FleetSize.FINITE);
VehicleRoutingProblem problem = vrpBuilder.build();
VehicleRoutingAlgorithm algorithm = new SchrimpfFactory().createAlgorithm(problem);
algorithm.setMaxIterations(10);
algorithm.setMaxIterations(0);
Collection<VehicleRoutingProblemSolution> solutions = algorithm.searchSolutions();
VehicleRoutingProblemSolution bestSolution = Solutions.bestOf(solutions);
for(VehicleRoute route : bestSolution.getRoutes()){
Vehicle v = route.getVehicle();
for(TourActivity ta : route.getActivities()){
if(ta.getArrTime() > v.getLatestArrival() * 1.00001){
assertFalse(true);
}
}
}
}
@Test
public void whenDealingWithServices_timeWindowsShouldNOTbeBroken() {
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
for(int i =0 ; i < nVehicles ; i++){
vrpBuilder.addVehicle(createVehicle());
}
for(int i =0 ; i < nJobs;i++){
vrpBuilder.addJob(createService());
}
vrpBuilder.setFleetSize(FleetSize.FINITE);
VehicleRoutingProblem problem = vrpBuilder.build();
VehicleRoutingAlgorithm algorithm = new SchrimpfFactory().createAlgorithm(problem);
algorithm.setMaxIterations(100);
Collection<VehicleRoutingProblemSolution> solutions = algorithm.searchSolutions();
VehicleRoutingProblemSolution bestSolution = Solutions.bestOf(solutions);
@ -58,13 +85,20 @@ public class PDTW_IT {
}
}
}
}
SolutionPrinter.print(bestSolution);
private AbstractJob createService() {
Service.Builder b = Service.Builder.newInstance(Integer.toString(nextShipmentId++));
b.addSizeDimension(0, 1);
b.setServiceTime(random.nextDouble() * 5);
b.setLocation(createLocation());
return b.build();
}
private Location createLocation(){
return loc(new Coordinate(50*random.nextDouble(), 50*random.nextDouble()));
}
private Shipment createShipment(){
Shipment.Builder b = Shipment.Builder.newInstance(Integer.toString(nextShipmentId++));
b.addSizeDimension(0, 1);