Examples of VehicleRoutingAlgorithmBuilder

jsprit.core.algorithm.VehicleRoutingAlgorithmBuilder
Builder that builds a {@link VehicleRoutingAlgorithm}. @author schroeder

Examples of jsprit.core.algorithm.VehicleRoutingAlgorithmBuilder

                .addJob(s1).addJob(s2).addJob(s3).addJob(s4).addJob(s5).addJob(s6).addJob(s7)
                .addVehicle(driver1).addVehicle(driver3);


        VehicleRoutingProblem vrp = vrpBuilder.build();


        VehicleRoutingAlgorithmBuilder vraBuilder = new VehicleRoutingAlgorithmBuilder(vrp,"input/algorithmConfig.xml");
        vraBuilder.addDefaultCostCalculators();
        vraBuilder.addCoreConstraints();


        StateManager stateManager = new StateManager(vrp);
        StateId keyPicked = stateManager.createStateId("key-picked");
        StateId keyUsed = stateManager.createStateId("key-used");
        StateId keyDelivered = stateManager.createStateId("key-delivered");
        stateManager.addStateUpdater(new KeyStatusUpdater(stateManager,keyPicked,keyUsed,keyDelivered));


        ConstraintManager constraintManager = new ConstraintManager(vrp,stateManager);
        constraintManager.addConstraint(new GetUseAndDeliverKeySimpleHardActivityConstraint(stateManager,keyPicked,keyUsed,keyDelivered), ConstraintManager.Priority.CRITICAL);
        constraintManager.addConstraint(new GetUseAndDeliverHardRouteContraint(stateManager,keyPicked,keyUsed,keyDelivered));


        vraBuilder.setStateAndConstraintManager(stateManager,constraintManager);
        VehicleRoutingAlgorithm vra = vraBuilder.build();
        vra.setMaxIterations(100);


        Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();


        SolutionPrinter.print(vrp, Solutions.bestOf(solutions), SolutionPrinter.Print.VERBOSE);

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Examples of jsprit.core.algorithm.VehicleRoutingAlgorithmBuilder

    /*
     * Define the required vehicle-routing algorithms to solve the above problem.
     * 
     * The algorithm can be defined and configured in an xml-file.
     */
        VehicleRoutingAlgorithmBuilder vraBuilder = new VehicleRoutingAlgorithmBuilder(vrp,"input/algorithmConfig_solomon.xml");
        vraBuilder.addCoreConstraints();
        vraBuilder.addDefaultCostCalculators();
        StateManager stateManager = new StateManager(vrp);
        ConstraintManager constraintManager = new ConstraintManager(vrp,stateManager);
        constraintManager.addConstraint(new ServiceDeliveriesFirstConstraint(), ConstraintManager.Priority.CRITICAL);
        vraBuilder.setStateAndConstraintManager(stateManager,constraintManager);
        VehicleRoutingAlgorithm vra = vraBuilder.build();
        vra.getAlgorithmListeners().addListener(new AlgorithmSearchProgressChartListener("output/sol_progress.png"));
    /*
     * Solve the problem.
     * 
     *

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Examples of jsprit.core.algorithm.VehicleRoutingAlgorithmBuilder

        constraintManager.addLoadConstraint();
        constraintManager.addConstraint(new ThreeTimesLessThanBestDirectRouteConstraint(latest_act_arrival_time_stateId,nearestMessengers,routingCosts,stateManager), ConstraintManager.Priority.CRITICAL);
        constraintManager.addConstraint(new IgnoreMessengerThatCanNeverMeetTimeRequirements(nearestMessengers, routingCosts));


        //create your algorithm
        VehicleRoutingAlgorithmBuilder vraBuilder = new VehicleRoutingAlgorithmBuilder(bicycleMessengerProblem,"input/algorithmConfig_open.xml");
//        vraBuilder.setNuOfThreads(2);
        vraBuilder.addDefaultCostCalculators();
        vraBuilder.setStateAndConstraintManager(stateManager, constraintManager);
        VehicleRoutingAlgorithm algorithm = vraBuilder.build();
        algorithm.setMaxIterations(5000);
//        VariationCoefficientTermination prematureAlgorithmTermination = new VariationCoefficientTermination(200, 0.001);
//        algorithm.setPrematureAlgorithmTermination(prematureAlgorithmTermination);
//        algorithm.addListener(prematureAlgorithmTermination);
//    algorithm.addListener(new AlgorithmSearchProgressChartListener("output/progress.png"));

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