/*******************************************************************************
* Copyright (C) 2014 Stefan Schroeder
*
* This library 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 3.0 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package jsprit.examples;
import jsprit.analysis.toolbox.AlgorithmSearchProgressChartListener;
import jsprit.analysis.toolbox.Plotter;
import jsprit.core.algorithm.VehicleRoutingAlgorithm;
import jsprit.core.algorithm.box.Jsprit;
import jsprit.core.algorithm.selector.SelectBest;
import jsprit.core.algorithm.state.StateManager;
import jsprit.core.analysis.SolutionAnalyser;
import jsprit.core.problem.Capacity;
import jsprit.core.problem.Location;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.constraint.ConstraintManager;
import jsprit.core.problem.constraint.ServiceDeliveriesFirstConstraint;
import jsprit.core.problem.io.VrpXMLReader;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
import jsprit.core.problem.solution.route.VehicleRoute;
import jsprit.core.problem.solution.route.activity.TourActivity;
import jsprit.core.reporting.SolutionPrinter;
import jsprit.util.Examples;
import java.util.Collection;
public class VRPWithBackhaulsExample2 {
public static void main(String[] args) {
/*
* some preparation - create output folder
*/
Examples.createOutputFolder();
/*
* Build the problem.
*
* But define a problem-builder first.
*/
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
/*
* A solomonReader reads solomon-instance files, and stores the required information in the builder.
*/
new VrpXMLReader(vrpBuilder).read("input/pd_christophides_vrpnc1_vcap50.xml");
/*
* Finally, the problem can be built. By default, transportCosts are crowFlyDistances (as usually used for vrp-instances).
*/
final VehicleRoutingProblem vrp = vrpBuilder.build();
// new Plotter(vrp).plot("output/vrpwbh_christophides_vrpnc1.png", "pd_vrpnc1");
/*
* Define the required vehicle-routing algorithms to solve the above problem.
*
* The algorithm can be defined and configured in an xml-file.
*/
// VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateAlgorithm(vrp, "input/algorithmConfig_solomon.xml");
// VehicleRoutingAlgorithmBuilder vraBuilder = new VehicleRoutingAlgorithmBuilder(vrp,"input/algorithmConfig_solomon.xml");
// vraBuilder.addDefaultCostCalculators();
// vraBuilder.addCoreConstraints();
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();
VehicleRoutingAlgorithm vra = Jsprit.Builder.newInstance(vrp)
.setStateAndConstraintManager(stateManager, constraintManager)
.setProperty(Jsprit.Parameter.FIXED_COST_PARAM.toString(), "0.")
.buildAlgorithm();
vra.setMaxIterations(2000);
vra.addListener(new AlgorithmSearchProgressChartListener("output/search"));
/*
* Solve the problem.
*
*
*/
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
/*
* Retrieve best solution.
*/
VehicleRoutingProblemSolution solution = new SelectBest().selectSolution(solutions);
/*
* print solution
*/
SolutionPrinter.print(solution);
/*
* Plot solution.
*/
// SolutionPlotter.plotSolutionAsPNG(vrp, solution, "output/pd_solomon_r101_solution.png","pd_r101");
Plotter plotter = new Plotter(vrp, solution);
// plotter.setLabel(Plotter.Label.SIZE);
plotter.plot("output/vrpwbh_christophides_vrpnc1_solution.png", "vrpwbh_vrpnc1");
SolutionAnalyser analyser = new SolutionAnalyser(vrp, solution, new SolutionAnalyser.DistanceCalculator() {
@Override
public double getDistance(Location from, Location to) {
return vrp.getTransportCosts().getTransportCost(from, to, 0., null, null);
}
});
for (VehicleRoute route : solution.getRoutes()) {
System.out.println("------");
System.out.println("vehicleId: " + route.getVehicle().getId());
System.out.println("vehicleCapacity: " + route.getVehicle().getType().getCapacityDimensions() + " maxLoad: " + analyser.getMaxLoad(route));
System.out.println("totalDistance: " + analyser.getDistance(route));
System.out.println("waitingTime: " + analyser.getWaitingTime(route));
System.out.println("load@beginning: " + analyser.getLoadAtBeginning(route));
System.out.println("load@end: " + analyser.getLoadAtEnd(route));
System.out.println("operationTime: " + analyser.getOperationTime(route));
System.out.println("serviceTime: " + analyser.getServiceTime(route));
System.out.println("transportTime: " + analyser.getTransportTime(route));
System.out.println("transportCosts: " + analyser.getVariableTransportCosts(route));
System.out.println("fixedCosts: " + analyser.getFixedCosts(route));
System.out.println("capViolationOnRoute: " + analyser.getCapacityViolation(route));
System.out.println("capViolation@beginning: " + analyser.getCapacityViolationAtBeginning(route));
System.out.println("capViolation@end: " + analyser.getCapacityViolationAtEnd(route));
System.out.println("timeWindowViolationOnRoute: " + analyser.getTimeWindowViolation(route));
System.out.println("skillConstraintViolatedOnRoute: " + analyser.hasSkillConstraintViolation(route));
System.out.println("dist@" + route.getStart().getLocation().getId() + ": " + analyser.getDistanceAtActivity(route.getStart(), route));
System.out.println("timeWindowViolation@" + route.getStart().getLocation().getId() + ": " + analyser.getTimeWindowViolationAtActivity(route.getStart(), route));
for (TourActivity act : route.getActivities()) {
System.out.println("--");
System.out.println("actType: " + act.getName() + " demand: " + act.getSize());
System.out.println("dist@" + act.getLocation().getId() + ": " + analyser.getDistanceAtActivity(act, route));
System.out.println("load(before)@" + act.getLocation().getId() + ": " + analyser.getLoadJustBeforeActivity(act, route));
System.out.println("load(after)@" + act.getLocation().getId() + ": " + analyser.getLoadRightAfterActivity(act, route));
System.out.println("transportCosts@" + act.getLocation().getId() + ": " + analyser.getVariableTransportCostsAtActivity(act, route));
System.out.println("capViolation(after)@" + act.getLocation().getId() + ": " + analyser.getCapacityViolationAfterActivity(act, route));
System.out.println("timeWindowViolation@" + act.getLocation().getId() + ": " + analyser.getTimeWindowViolationAtActivity(act, route));
System.out.println("skillConstraintViolated@" + act.getLocation().getId() + ": " + analyser.hasSkillConstraintViolationAtActivity(act, route));
}
System.out.println("--");
System.out.println("dist@" + route.getEnd().getLocation().getId() + ": " + analyser.getDistanceAtActivity(route.getEnd(), route));
System.out.println("timeWindowViolation@" + route.getEnd().getLocation().getId() + ": " + analyser.getTimeWindowViolationAtActivity(route.getEnd(), route));
}
System.out.println("-----");
System.out.println("aggreate solution stats");
System.out.println("total freight moved: " + Capacity.addup(analyser.getLoadAtBeginning(), analyser.getLoadPickedUp()));
System.out.println("total no. picks at beginning: " + analyser.getNumberOfPickupsAtBeginning());
System.out.println("total no. picks on routes: " + analyser.getNumberOfPickups());
System.out.println("total picked load at beginnnig: " + analyser.getLoadAtBeginning());
System.out.println("total picked load on routes: " + analyser.getLoadPickedUp());
System.out.println("total no. deliveries at end: " + analyser.getNumberOfDeliveriesAtEnd());
System.out.println("total no. deliveries on routes: " + analyser.getNumberOfDeliveries());
System.out.println("total delivered load at end: " + analyser.getLoadAtEnd());
System.out.println("total delivered load on routes: " + analyser.getLoadDelivered());
System.out.println("total tp_distance: " + analyser.getDistance());
System.out.println("total tp_time: " + analyser.getTransportTime());
System.out.println("total waiting_time: " + analyser.getWaitingTime());
System.out.println("total service_time: " + analyser.getServiceTime());
System.out.println("total operation_time: " + analyser.getOperationTime());
System.out.println("total twViolation: " + analyser.getTimeWindowViolation());
System.out.println("total capViolation: " + analyser.getCapacityViolation());
System.out.println("total fixedCosts: " + analyser.getFixedCosts());
System.out.println("total variableCosts: " + analyser.getVariableTransportCosts());
System.out.println("total costs: " + analyser.getTotalCosts());
}
}