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variable departure times and waiting time opt
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oblonski
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1604a637a5
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552729d7ee
10 changed files with 403 additions and 14 deletions
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package jsprit.core.algorithm;
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import jsprit.core.algorithm.box.Jsprit;
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import jsprit.core.algorithm.state.StateManager;
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import jsprit.core.algorithm.state.UpdateDepartureTime;
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import jsprit.core.analysis.SolutionAnalyser;
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import jsprit.core.problem.Location;
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import jsprit.core.problem.VehicleRoutingProblem;
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import jsprit.core.problem.constraint.ConstraintManager;
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import jsprit.core.problem.cost.TransportDistance;
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import jsprit.core.problem.cost.VehicleRoutingActivityCosts;
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import jsprit.core.problem.driver.Driver;
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import jsprit.core.problem.job.Service;
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import jsprit.core.problem.solution.SolutionCostCalculator;
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import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
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import jsprit.core.problem.solution.route.activity.TimeWindow;
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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.CostFactory;
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import jsprit.core.util.Solutions;
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import junit.framework.Assert;
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import org.junit.Before;
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import org.junit.Test;
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/**
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* Created by schroeder on 22/07/15.
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*/
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public class VariableDepartureAndWaitingTime_IT {
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static interface AlgorithmFactory {
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VehicleRoutingAlgorithm createAlgorithm(VehicleRoutingProblem vrp);
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}
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VehicleRoutingActivityCosts activityCosts;
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AlgorithmFactory algorithmFactory;
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@Before
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public void doBefore(){
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activityCosts = new VehicleRoutingActivityCosts() {
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@Override
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public double getActivityCost(TourActivity tourAct, double arrivalTime, Driver driver, Vehicle vehicle) {
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return Math.max(0,tourAct.getTheoreticalEarliestOperationStartTime() - arrivalTime);
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}
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};
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algorithmFactory = new AlgorithmFactory() {
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@Override
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public VehicleRoutingAlgorithm createAlgorithm(final VehicleRoutingProblem vrp) {
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StateManager stateManager = new StateManager(vrp);
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stateManager.addStateUpdater(new UpdateDepartureTime(vrp.getTransportCosts()));
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ConstraintManager constraintManager = new ConstraintManager(vrp,stateManager);
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return Jsprit.Builder.newInstance(vrp)
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.addCoreStateAndConstraintStuff(true)
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.setStateAndConstraintManager(stateManager,constraintManager)
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.setObjectiveFunction(new SolutionCostCalculator() {
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@Override
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public double getCosts(VehicleRoutingProblemSolution solution) {
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SolutionAnalyser sa = new SolutionAnalyser(vrp, solution, new TransportDistance() {
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@Override
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public double getDistance(Location from, Location to) {
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return vrp.getTransportCosts().getTransportCost(from, to, 0., null, null);
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}
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});
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return sa.getWaitingTime() + sa.getDistance();
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}
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})
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.buildAlgorithm();
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}
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};
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}
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@Test
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public void plainSetupShouldWork(){
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setStartLocation(Location.newInstance(0,0)).build();
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Service s1 = Service.Builder.newInstance("s1").setLocation(Location.newInstance(10,0)).build();
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Service s2 = Service.Builder.newInstance("s2").setLocation(Location.newInstance(20,0)).build();
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VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance()
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.addJob(s1).addJob(s2).addVehicle(v)
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.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE)
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.setRoutingCost(CostFactory.createManhattanCosts())
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.setActivityCosts(activityCosts)
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.build();
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VehicleRoutingAlgorithm vra = algorithmFactory.createAlgorithm(vrp);
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VehicleRoutingProblemSolution solution = Solutions.bestOf(vra.searchSolutions());
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Assert.assertEquals(40.,solution.getCost());
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}
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@Test
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public void withTimeWindowsShouldWork(){
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setStartLocation(Location.newInstance(0,0)).build();
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Service s1 = Service.Builder.newInstance("s1").setTimeWindow(TimeWindow.newInstance(1010,1100)).setLocation(Location.newInstance(10,0)).build();
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Service s2 = Service.Builder.newInstance("s2").setTimeWindow(TimeWindow.newInstance(1020,1100)).setLocation(Location.newInstance(20,0)).build();
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final VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance()
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.addJob(s1).addJob(s2).addVehicle(v)
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.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE)
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.setRoutingCost(CostFactory.createManhattanCosts())
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.setActivityCosts(activityCosts)
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.build();
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VehicleRoutingAlgorithm vra = algorithmFactory.createAlgorithm(vrp);
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VehicleRoutingProblemSolution solution = Solutions.bestOf(vra.searchSolutions());
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Assert.assertEquals(40.+1000.,solution.getCost());
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}
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@Test
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public void variableDepartureShouldWork(){
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(true).setStartLocation(Location.newInstance(0, 0)).build();
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Service s1 = Service.Builder.newInstance("s1").setTimeWindow(TimeWindow.newInstance(1010,1100)).setLocation(Location.newInstance(10,0)).build();
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Service s2 = Service.Builder.newInstance("s2").setTimeWindow(TimeWindow.newInstance(1020,1100)).setLocation(Location.newInstance(20,0)).build();
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final VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance()
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.addJob(s1).addJob(s2).addVehicle(v)
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.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE)
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.setRoutingCost(CostFactory.createManhattanCosts())
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.setActivityCosts(activityCosts)
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.build();
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VehicleRoutingAlgorithm vra = algorithmFactory.createAlgorithm(vrp);
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VehicleRoutingProblemSolution solution = Solutions.bestOf(vra.searchSolutions());
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Assert.assertEquals(40.,solution.getCost());
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}
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@Test
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public void variableDepartureShouldWork2(){
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(true).setStartLocation(Location.newInstance(0, 0)).build();
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Service s1 = Service.Builder.newInstance("s1").setTimeWindow(TimeWindow.newInstance(1010,1100)).setLocation(Location.newInstance(10,0)).build();
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Service s2 = Service.Builder.newInstance("s2").setTimeWindow(TimeWindow.newInstance(1020,1100)).setLocation(Location.newInstance(20,0)).build();
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Service s3 = Service.Builder.newInstance("s3").setTimeWindow(TimeWindow.newInstance(1020,1100)).setLocation(Location.newInstance(15,0)).build();
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final VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance()
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.addJob(s1).addJob(s2).addVehicle(v)
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.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE)
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.setRoutingCost(CostFactory.createManhattanCosts())
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.setActivityCosts(activityCosts)
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.build();
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VehicleRoutingAlgorithm vra = algorithmFactory.createAlgorithm(vrp);
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VehicleRoutingProblemSolution solution = Solutions.bestOf(vra.searchSolutions());
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Assert.assertEquals(40.,solution.getCost());
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}
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}
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@ -0,0 +1,97 @@
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package jsprit.core.algorithm.state;
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import jsprit.core.problem.Location;
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import jsprit.core.problem.cost.VehicleRoutingTransportCosts;
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import jsprit.core.problem.job.Service;
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import jsprit.core.problem.solution.route.VehicleRoute;
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import jsprit.core.problem.solution.route.activity.TimeWindow;
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import jsprit.core.problem.vehicle.VehicleImpl;
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import jsprit.core.util.CostFactory;
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import junit.framework.Assert;
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import org.junit.Test;
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/**
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* Created by schroeder on 22/07/15.
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*/
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public class UpdateDepartureTimeTest {
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@Test
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public void whenNoTimeWindow_departureTimeShouldBeEarliestStartTime(){
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VehicleRoutingTransportCosts routingCosts = CostFactory.createManhattanCosts();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setStartLocation(Location.newInstance(0,0)).build();
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Service s = Service.Builder.newInstance("s").setLocation(Location.newInstance(10,0)).build();
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(s).build();
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UpdateDepartureTime udt = new UpdateDepartureTime(routingCosts);
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udt.visit(route);
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Assert.assertEquals(0.,route.getDepartureTime());
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}
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@Test
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public void whenNoTimeWindow_departureTimeShouldBeEarliestStartTime2(){
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VehicleRoutingTransportCosts routingCosts = CostFactory.createManhattanCosts();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setEarliestStart(10).setStartLocation(Location.newInstance(0, 0)).build();
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Service s = Service.Builder.newInstance("s").setLocation(Location.newInstance(10,0)).build();
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(s).build();
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UpdateDepartureTime udt = new UpdateDepartureTime(routingCosts);
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udt.visit(route);
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Assert.assertEquals(10.,route.getDepartureTime());
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}
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@Test
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public void whenTimeWindowAndNoWaitingTime_departureTimeShouldBeEarliestStartTime1(){
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VehicleRoutingTransportCosts routingCosts = CostFactory.createManhattanCosts();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setEarliestStart(0).setStartLocation(Location.newInstance(0,0)).build();
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Service s = Service.Builder.newInstance("s").setTimeWindow(TimeWindow.newInstance(5,20)).setLocation(Location.newInstance(10, 0)).build();
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(s).build();
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UpdateDepartureTime udt = new UpdateDepartureTime(routingCosts);
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udt.visit(route);
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Assert.assertEquals(0.,route.getDepartureTime());
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}
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@Test
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public void whenTimeWindowAndNoWaitingTime_departureTimeShouldBeEarliestStartTime2(){
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VehicleRoutingTransportCosts routingCosts = CostFactory.createManhattanCosts();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setEarliestStart(10).setStartLocation(Location.newInstance(0,0)).build();
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Service s = Service.Builder.newInstance("s").setTimeWindow(TimeWindow.newInstance(5,20)).setLocation(Location.newInstance(10, 0)).build();
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(s).build();
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UpdateDepartureTime udt = new UpdateDepartureTime(routingCosts);
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udt.visit(route);
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Assert.assertEquals(10.,route.getDepartureTime());
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}
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@Test
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public void whenTimeWindowAndWaitingTime_departureTimeShouldChange(){
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VehicleRoutingTransportCosts routingCosts = CostFactory.createManhattanCosts();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setEarliestStart(0)
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.setHasVariableDepartureTime(true)
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.setStartLocation(Location.newInstance(0,0)).build();
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Service s = Service.Builder.newInstance("s").setTimeWindow(TimeWindow.newInstance(15,20)).setLocation(Location.newInstance(10, 0)).build();
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(s).build();
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UpdateDepartureTime udt = new UpdateDepartureTime(routingCosts);
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udt.visit(route);
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Assert.assertEquals(5.,route.getDepartureTime());
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}
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@Test
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public void whenTimeWindowAndWaitingTime_departureTimeShouldChange2(){
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VehicleRoutingTransportCosts routingCosts = CostFactory.createManhattanCosts();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(true).setEarliestStart(5).setStartLocation(Location.newInstance(0,0)).build();
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Service s = Service.Builder.newInstance("s").setTimeWindow(TimeWindow.newInstance(18,20)).setLocation(Location.newInstance(10, 0)).build();
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(s).build();
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UpdateDepartureTime udt = new UpdateDepartureTime(routingCosts);
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udt.visit(route);
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Assert.assertEquals(8.,route.getDepartureTime());
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}
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}
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@ -221,5 +221,15 @@ public class VehicleImplTest {
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assertFalse(v.getSkills().containsSkill("ScrewDriver"));
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}
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@Test
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public void whenSettingVariableDeparture_itShouldBeSet(){
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setStartLocation(Location.newInstance("loc")).setHasVariableDepartureTime(true).build();
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assertTrue(v.hasVariableDepartureTime());
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}
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@Test
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public void defaultOfHasVariableDepartureShouldBeFalse(){
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setStartLocation(Location.newInstance("loc")).build();
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assertFalse(v.hasVariableDepartureTime());
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}
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}
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