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Code Issues Releases Wiki Activity

modify insertion to incorporate open-routes

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Stefan Schroeder 2013-11-27 17:22:42 +01:00
parent e5e5783d67
commit 4e25d894b6
7 changed files with 299 additions and 0 deletions
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20
jsprit-core/src/main/java/jsprit/core/algorithm/recreate/Inserter.java
View file

@ -62,10 +62,20 @@ class Inserter {
if(job instanceof Service){
route.getTourActivities().addActivity(iData.getDeliveryInsertionIndex(), this.activityFactory.createActivity((Service)job));
route.setDepartureTime(iData.getVehicleDepartureTime());
if(!iData.getSelectedVehicle().isReturnToDepot()){
if(iData.getDeliveryInsertionIndex()>=route.getTourActivities().getActivities().size()){
setEndLocation(route,(Service)job);
}
}
}
else delegator.handleJobInsertion(job, iData, route);
}
private void setEndLocation(VehicleRoute route, Service service) {
route.getEnd().setCoordinate(service.getCoord());
route.getEnd().setLocationId(service.getLocationId());
}
public void setNextHandler(JobInsertionHandler jobInsertionHandler){
this.delegator = jobInsertionHandler;
}
@ -86,10 +96,20 @@ class Inserter {
route.getTourActivities().addActivity(iData.getDeliveryInsertionIndex(), deliverShipment);
route.getTourActivities().addActivity(iData.getPickupInsertionIndex(), pickupShipment);
route.setDepartureTime(iData.getVehicleDepartureTime());
if(!iData.getSelectedVehicle().isReturnToDepot()){
if(iData.getDeliveryInsertionIndex()>=route.getTourActivities().getActivities().size()){
setEndLocation(route,(Shipment)job);
}
}
}
else delegator.handleJobInsertion(job, iData, route);
}
private void setEndLocation(VehicleRoute route, Shipment shipment) {
route.getEnd().setCoordinate(shipment.getDeliveryCoord());
route.getEnd().setLocationId(shipment.getDeliveryLocation());
}
public void setNextHandler(JobInsertionHandler jobInsertionHandler){
this.delegator = jobInsertionHandler;
}

8
jsprit-core/src/main/java/jsprit/core/algorithm/recreate/LocalActivityInsertionCostsCalculator.java
View file

@ -23,6 +23,7 @@ package jsprit.core.algorithm.recreate;
import jsprit.core.problem.cost.VehicleRoutingActivityCosts;
import jsprit.core.problem.cost.VehicleRoutingTransportCosts;
import jsprit.core.problem.misc.JobInsertionContext;
import jsprit.core.problem.solution.route.activity.End;
import jsprit.core.problem.solution.route.activity.TourActivity;
import jsprit.core.util.CalculationUtils;
@ -61,6 +62,13 @@ class LocalActivityInsertionCostsCalculator implements ActivityInsertionCostsCal
double act_costs_newAct = activityCosts.getActivityCost(newAct, newAct_arrTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
//open routes
if(nextAct instanceof End){
if(!iFacts.getNewVehicle().isReturnToDepot()){
return new ActivityInsertionCosts(tp_costs_prevAct_newAct, tp_time_prevAct_newAct);
}
}
double tp_costs_newAct_nextAct = routingCosts.getTransportCost(newAct.getLocationId(), nextAct.getLocationId(), newAct_endTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
double tp_time_newAct_nextAct = routingCosts.getTransportTime(newAct.getLocationId(), nextAct.getLocationId(), newAct_endTime, iFacts.getNewDriver(), iFacts.getNewVehicle());

2
jsprit-core/src/main/java/jsprit/core/problem/vehicle/Vehicle.java
View file

@ -36,4 +36,6 @@ public interface Vehicle {
public abstract int getCapacity();
public abstract boolean isReturnToDepot();
}

21
jsprit-core/src/main/java/jsprit/core/problem/vehicle/VehicleImpl.java
View file

@ -54,6 +54,8 @@ public class VehicleImpl implements Vehicle {
private double earliestStart = 0.0;
private double latestArrival = Double.MAX_VALUE;
private boolean returnToDepot = true;
private VehicleType type = VehicleTypeImpl.Builder.newInstance("default", 0).build();
private Builder(String id) {
@ -66,6 +68,11 @@ public class VehicleImpl implements Vehicle {
return this;
}
public Builder setReturnToDepot(boolean returnToDepot){
this.returnToDepot = returnToDepot;
return this;
}
public Builder setLocationId(String id){
this.locationId = id;
return this;
@ -114,6 +121,8 @@ public class VehicleImpl implements Vehicle {
private final double latestArrival;
private boolean returnToDepot;
private VehicleImpl(Builder builder){
id = builder.id;
type = builder.type;
@ -121,6 +130,7 @@ public class VehicleImpl implements Vehicle {
locationId = builder.locationId;
earliestDeparture = builder.earliestStart;
latestArrival = builder.latestArrival;
returnToDepot = builder.returnToDepot;
}
@ -194,4 +204,15 @@ public class VehicleImpl implements Vehicle {
return type.getCapacity();
}
/**
* @return the returnToDepot
*/
public boolean isReturnToDepot() {
return returnToDepot;
}
}

7
jsprit-core/src/test/java/jsprit/core/algorithm/recreate/TestInserter.java Normal file
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@ -0,0 +1,7 @@
package jsprit.core.algorithm.recreate;
public class TestInserter {
}

132
jsprit-examples/src/main/java/jsprit/examples/SimpleEnRoutePickupAndDeliveryOpenRoutesExample.java Normal file
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@ -0,0 +1,132 @@
/*******************************************************************************
* 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.examples;
import java.io.File;
import java.util.Arrays;
import java.util.Collection;
import jsprit.analysis.toolbox.Plotter;
import jsprit.analysis.toolbox.SolutionPrinter;
import jsprit.core.algorithm.VehicleRoutingAlgorithm;
import jsprit.core.algorithm.box.SchrimpfFactory;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.io.VrpXMLWriter;
import jsprit.core.problem.job.Shipment;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
import jsprit.core.problem.vehicle.Vehicle;
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.util.Coordinate;
import jsprit.core.util.Solutions;
public class SimpleEnRoutePickupAndDeliveryOpenRoutesExample {
public static void main(String[] args) {
/*
* some preparation - create output folder
*/
File dir = new File("output");
// if the directory does not exist, create it
if (!dir.exists()){
System.out.println("creating directory ./output");
boolean result = dir.mkdir();
if(result) System.out.println("./output created");
}
/*
* get a vehicle type-builder and build a type with the typeId "vehicleType" and a capacity of 2
*/
VehicleTypeImpl.Builder vehicleTypeBuilder = VehicleTypeImpl.Builder.newInstance("vehicleType", 2);
VehicleType vehicleType = vehicleTypeBuilder.build();
/*
* get a vehicle-builder and build a vehicle located at (10,10) with type "vehicleType"
*/
Builder vehicleBuilder = VehicleImpl.Builder.newInstance("vehicle");
vehicleBuilder.setLocationCoord(Coordinate.newInstance(10, 10));
vehicleBuilder.setType(vehicleType);
vehicleBuilder.setReturnToDepot(false);
Vehicle vehicle = vehicleBuilder.build();
/*
* build shipments at the required locations, each with a capacity-demand of 1.
* 4 shipments
* 1: (5,7)->(6,9)
* 2: (5,13)->(6,11)
* 3: (15,7)->(14,9)
* 4: (15,13)->(14,11)
*/
Shipment shipment1 = Shipment.Builder.newInstance("1", 1).setPickupCoord(Coordinate.newInstance(5, 7)).setDeliveryCoord(Coordinate.newInstance(6, 9)).build();
Shipment shipment2 = Shipment.Builder.newInstance("2", 1).setPickupCoord(Coordinate.newInstance(5, 13)).setDeliveryCoord(Coordinate.newInstance(6, 11)).build();
Shipment shipment3 = Shipment.Builder.newInstance("3", 1).setPickupCoord(Coordinate.newInstance(15, 7)).setDeliveryCoord(Coordinate.newInstance(14, 9)).build();
Shipment shipment4 = Shipment.Builder.newInstance("4", 1).setPickupCoord(Coordinate.newInstance(15, 13)).setDeliveryCoord(Coordinate.newInstance(14, 11)).build();
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
vrpBuilder.addVehicle(vehicle);
vrpBuilder.addJob(shipment1).addJob(shipment2).addJob(shipment3).addJob(shipment4);
VehicleRoutingProblem problem = vrpBuilder.build();
/*
* get the algorithm out-of-the-box.
*/
VehicleRoutingAlgorithm algorithm = new SchrimpfFactory().createAlgorithm(problem);
/*
* and search a solution
*/
Collection<VehicleRoutingProblemSolution> solutions = algorithm.searchSolutions();
/*
* get the best
*/
VehicleRoutingProblemSolution bestSolution = Solutions.bestOf(solutions);
/*
* write out problem and solution to xml-file
*/
new VrpXMLWriter(problem, solutions).write("output/shipment-problem-with-solution.xml");
/*
* print nRoutes and totalCosts of bestSolution
*/
SolutionPrinter.print(bestSolution);
/*
* plot problem without solution
*/
Plotter problemPlotter = new Plotter(problem);
problemPlotter.plotShipments(true);
problemPlotter.plot("output/simpleEnRoutePickupAndDeliveryExample_problem.png", "en-route pickup and delivery");
/*
* plot problem with solution
*/
Plotter solutionPlotter = new Plotter(problem,Solutions.bestOf(solutions).getRoutes());
solutionPlotter.plotShipments(true);
solutionPlotter.plot("output/simpleEnRoutePickupAndDeliveryExample_solution.png", "en-route pickup and delivery");
}
}

109
jsprit-examples/src/main/java/jsprit/examples/SimpleExampleOpenRoutes.java Normal file
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@ -0,0 +1,109 @@
/*******************************************************************************
* 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.examples;
import java.io.File;
import java.util.Collection;
import jsprit.analysis.toolbox.SolutionPlotter;
import jsprit.analysis.toolbox.SolutionPrinter;
import jsprit.core.algorithm.VehicleRoutingAlgorithm;
import jsprit.core.algorithm.box.SchrimpfFactory;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.io.VrpXMLWriter;
import jsprit.core.problem.job.Service;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
import jsprit.core.problem.vehicle.Vehicle;
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.util.Coordinate;
import jsprit.core.util.Solutions;
public class SimpleExampleOpenRoutes {
public static void main(String[] args) {
/*
* some preparation - create output folder
*/
File dir = new File("output");
// if the directory does not exist, create it
if (!dir.exists()){
System.out.println("creating directory ./output");
boolean result = dir.mkdir();
if(result) System.out.println("./output created");
}
/*
* get a vehicle type-builder and build a type with the typeId "vehicleType" and a capacity of 2
*/
VehicleTypeImpl.Builder vehicleTypeBuilder = VehicleTypeImpl.Builder.newInstance("vehicleType", 2);
VehicleType vehicleType = vehicleTypeBuilder.build();
/*
* get a vehicle-builder and build a vehicle located at (10,10) with type "vehicleType"
*/
Builder vehicleBuilder = VehicleImpl.Builder.newInstance("vehicle");
vehicleBuilder.setLocationCoord(Coordinate.newInstance(10, 10));
vehicleBuilder.setType(vehicleType);
vehicleBuilder.setReturnToDepot(false);
Vehicle vehicle = vehicleBuilder.build();
/*
* build services at the required locations, each with a capacity-demand of 1.
*/
Service service1 = Service.Builder.newInstance("1", 1).setCoord(Coordinate.newInstance(5, 7)).build();
Service service2 = Service.Builder.newInstance("2", 1).setCoord(Coordinate.newInstance(5, 13)).build();
Service service3 = Service.Builder.newInstance("3", 1).setCoord(Coordinate.newInstance(15, 7)).build();
Service service4 = Service.Builder.newInstance("4", 1).setCoord(Coordinate.newInstance(15, 13)).build();
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
vrpBuilder.addVehicle(vehicle);
vrpBuilder.addJob(service1).addJob(service2).addJob(service3).addJob(service4);
VehicleRoutingProblem problem = vrpBuilder.build();
/*
* get the algorithm out-of-the-box.
*/
VehicleRoutingAlgorithm algorithm = new SchrimpfFactory().createAlgorithm(problem);
/*
* and search a solution
*/
Collection<VehicleRoutingProblemSolution> solutions = algorithm.searchSolutions();
/*
* get the best
*/
VehicleRoutingProblemSolution bestSolution = Solutions.bestOf(solutions);
new VrpXMLWriter(problem, solutions).write("output/problem-with-solution.xml");
SolutionPrinter.print(bestSolution);
/*
* plot
*/
SolutionPlotter.plotSolutionAsPNG(problem, bestSolution, "output/solution.png", "solution");
}
}