/*******************************************************************************
* Copyright (C) 2013 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.core.algorithm.recreate;
import static org.junit.Assert.assertEquals;
import java.util.Collection;
import jsprit.core.algorithm.VehicleRoutingAlgorithm;
import jsprit.core.algorithm.io.VehicleRoutingAlgorithms;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.VehicleRoutingProblem.FleetSize;
import jsprit.core.problem.cost.VehicleRoutingTransportCosts;
import jsprit.core.problem.driver.Driver;
import jsprit.core.problem.job.Service;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
import jsprit.core.problem.solution.route.VehicleRoute;
import jsprit.core.problem.vehicle.Vehicle;
import jsprit.core.problem.vehicle.VehicleImpl;
import jsprit.core.problem.vehicle.VehicleTypeImpl;
import jsprit.core.util.Coordinate;
import jsprit.core.util.CrowFlyCosts;
import jsprit.core.util.Solutions;
public class CalcWithTimeSchedulingTest {
public void timeScheduler(){
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
Vehicle vehicle = VehicleImpl.Builder.newInstance("myVehicle").setEarliestStart(0.0).setLatestArrival(100.0).
setStartLocationCoordinate(Coordinate.newInstance(0, 0)).setStartLocationId("0,0")
.setType(VehicleTypeImpl.Builder.newInstance("myType").addCapacityDimension(0, 20).setCostPerDistance(1.0).build()).build();
vrpBuilder.addVehicle(vehicle);
vrpBuilder.addJob(Service.Builder.newInstance("myService").addSizeDimension(0, 2).setLocationId("0,20").setCoord(Coordinate.newInstance(0, 20)).build());
vrpBuilder.setFleetSize(FleetSize.INFINITE);
vrpBuilder.setRoutingCost(getTpCosts(new CrowFlyCosts(vrpBuilder.getLocations())));
VehicleRoutingProblem vrp = vrpBuilder.build();
VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateAlgorithm(vrp, "src/test/resources/testConfig.xml");
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
VehicleRoutingProblemSolution sol = Solutions.bestOf(solutions);
assertEquals(40.0,sol.getCost(),0.01);
assertEquals(1, sol.getRoutes().size());
VehicleRoute route = sol.getRoutes().iterator().next();
assertEquals(50.0,route.getStart().getEndTime(),0.01);
}
private VehicleRoutingTransportCosts getTpCosts(final VehicleRoutingTransportCosts baseCosts) {
return new VehicleRoutingTransportCosts() {
@Override
public double getBackwardTransportCost(String fromId, String toId,double arrivalTime, Driver driver, Vehicle vehicle) {
return getTransportCost(fromId, toId, arrivalTime, driver, vehicle);
}
@Override
public double getTransportCost(String fromId, String toId, double departureTime, Driver driver, Vehicle vehicle) {
if(departureTime < 50){
return baseCosts.getTransportCost(fromId, toId, departureTime, driver, vehicle)*2.0;
}
return baseCosts.getTransportCost(fromId, toId, departureTime, driver, vehicle);
}
@Override
public double getBackwardTransportTime(String fromId, String toId,double arrivalTime, Driver driver, Vehicle vehicle) {
return getTransportTime(fromId, toId, arrivalTime, driver, vehicle);
}
@Override
public double getTransportTime(String fromId, String toId,double departureTime, Driver driver, Vehicle vehicle) {
return getTransportCost(fromId, toId, departureTime, driver, vehicle);
}
};
}
}