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Code Issues Releases Wiki Activity

relax API

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This commit is contained in:
Stefan Schroeder 2013-10-08 15:34:33 +02:00
parent a51abf6302
commit 289b7a0f77
70 changed files with 1674 additions and 1226 deletions
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2
jsprit-core/src/main/java/algorithms/ActivityVisitor.java
View file

@ -3,7 +3,7 @@ package algorithms;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
interface ActivityVisitor {
public interface ActivityVisitor {
public void begin(VehicleRoute route);

22
jsprit-core/src/main/java/algorithms/BestInsertion.java
View file

@ -38,6 +38,28 @@ import basics.route.VehicleRoute;
final class BestInsertion implements InsertionStrategy{
class Insertion {
private final VehicleRoute route;
private final InsertionData insertionData;
public Insertion(VehicleRoute vehicleRoute, InsertionData insertionData) {
super();
this.route = vehicleRoute;
this.insertionData = insertionData;
}
public VehicleRoute getRoute() {
return route;
}
public InsertionData getInsertionData() {
return insertionData;
}
}
private static Logger logger = Logger.getLogger(BestInsertion.class);
private Random random = RandomNumberGeneration.getRandom();

51
jsprit-core/src/main/java/algorithms/BestInsertionBuilder.java
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@ -1,8 +1,10 @@
package algorithms;
import algorithms.constraints.ConstraintManager;
import algorithms.constraints.HardActivityLevelConstraint;
import algorithms.constraints.HardRouteLevelConstraint;
import basics.VehicleRoutingProblem;
import algorithms.HardConstraints.HardActivityLevelConstraint;
import algorithms.HardConstraints.HardRouteLevelConstraint;
import basics.VehicleRoutingProblem.FleetSize;
public class BestInsertionBuilder implements InsertionStrategyBuilder{
@ -10,25 +12,58 @@ public class BestInsertionBuilder implements InsertionStrategyBuilder{
private StateManager stateManager;
private boolean local = true;
private ConstraintManager constraintManager;
private VehicleFleetManager fleetManager;
public BestInsertionBuilder(VehicleRoutingProblem vrp, StateManager stateManager) {
super();
this.vrp = vrp;
this.stateManager = stateManager;
this.constraintManager = new ConstraintManager();
}
public void addConstraint(HardActivityLevelConstraint hardActvitiyLevelConstraint){};
public void addConstraint(HardActivityLevelConstraint hardActvitiyLevelConstraint){
constraintManager.addConstraint(hardActvitiyLevelConstraint);
};
public void addConstraint(HardRouteLevelConstraint hardRouteLevelConstraint){};
public void addConstraint(HardRouteLevelConstraint hardRouteLevelConstraint){
constraintManager.addConstraint(hardRouteLevelConstraint);
};
public void setRouteLevel(int forwardLooking, int memory){};
//public void setRouteLevel(int forwardLooking, int memory){};
public void setLocalLevel(){};
public void setLocalLevel(){
local = true;
};
public void setActivityInsertionCostCalculator(ActivityInsertionCostCalculator costCalc){};
public void setFleetManager(VehicleFleetManager fleetManager){
this.fleetManager = fleetManager;
}
//public void setActivityInsertionCostCalculator(ActivityInsertionCostCalculator costCalc){};
@Override
public InsertionStrategy build() {
return null;
CalculatorBuilder calcBuilder = new CalculatorBuilder(null, null);
if(local){
calcBuilder.setLocalLevel();
}
calcBuilder.setConstraintManager(constraintManager);
calcBuilder.setStates(stateManager);
calcBuilder.setVehicleRoutingProblem(vrp);
calcBuilder.setVehicleFleetManager(fleetManager);
JobInsertionCalculator jobInsertions = calcBuilder.build();
return new BestInsertion(jobInsertions);
}
private VehicleFleetManager createFleetManager(VehicleRoutingProblem vrp) {
if(vrp.getFleetSize().equals(FleetSize.INFINITE)){
return new InfiniteVehicles(vrp.getVehicles());
}
else return new VehicleFleetManagerImpl(vrp.getVehicles());
}
}

8
jsprit-core/src/main/java/algorithms/CreateInitialSolution.java → jsprit-core/src/main/java/algorithms/BestInsertionInitialSolutionFactory.java
View file

@ -47,9 +47,9 @@ import basics.route.VehicleRoute;
final class CreateInitialSolution implements InitialSolutionFactory {
public final class BestInsertionInitialSolutionFactory implements InitialSolutionFactory {
private static final Logger logger = Logger.getLogger(CreateInitialSolution.class);
private static final Logger logger = Logger.getLogger(BestInsertionInitialSolutionFactory.class);
private final InsertionStrategy insertion;
@ -59,13 +59,13 @@ final class CreateInitialSolution implements InitialSolutionFactory {
this.generateAsMuchAsRoutesAsVehiclesExist = generateAsMuchAsRoutesAsVehiclesExist;
}
public CreateInitialSolution(InsertionStrategy insertionStrategy) {
public BestInsertionInitialSolutionFactory(InsertionStrategy insertionStrategy) {
super();
this.insertion = insertionStrategy;
}
@Override
public VehicleRoutingProblemSolution createInitialSolution(final VehicleRoutingProblem vrp) {
public VehicleRoutingProblemSolution createSolution(final VehicleRoutingProblem vrp) {
logger.info("create initial solution.");
List<VehicleRoute> vehicleRoutes = new ArrayList<VehicleRoute>();
if(generateAsMuchAsRoutesAsVehiclesExist){

7
jsprit-core/src/main/java/algorithms/CalculatesServiceInsertion.java
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@ -15,18 +15,17 @@ package algorithms;
import org.apache.log4j.Logger;
import util.Neighborhood;
import algorithms.HardConstraints.HardRouteLevelConstraint;
import algorithms.ActivityInsertionCostCalculator.Marginals;
import algorithms.constraints.HardRouteLevelConstraint;
import basics.Job;
import basics.Service;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.DefaultTourActivityFactory;
import basics.route.Driver;
import basics.route.End;
import basics.route.ServiceActivity;
import basics.route.Start;
import basics.route.TourActivity;
import basics.route.TourActivityFactory;
import basics.route.DefaultTourActivityFactory;
import basics.route.Vehicle;
import basics.route.VehicleImpl.NoVehicle;
import basics.route.VehicleRoute;
@ -117,7 +116,7 @@ final class CalculatesServiceInsertion implements JobInsertionCalculator{
}
double nextActArrTime = prevActStartTime + transportCosts.getTransportTime(prevAct.getLocationId(), nextAct.getLocationId(), prevActStartTime, newDriver, newVehicle);
double nextActEndTime = CalcUtils.getActivityEndTime(nextActArrTime, nextAct);
double nextActEndTime = CalculationUtils.getActivityEndTime(nextActArrTime, nextAct);
prevActStartTime = nextActEndTime;

2
jsprit-core/src/main/java/algorithms/CalculatesServiceInsertionConsideringFixCost.java
View file

@ -23,8 +23,6 @@ package algorithms;
import org.apache.log4j.Logger;
import algorithms.InsertionData.NoInsertionFound;
import algorithms.StateManager.State;
import algorithms.StateManager.States;
import basics.Job;
import basics.route.Driver;
import basics.route.Vehicle;

1
jsprit-core/src/main/java/algorithms/CalculatesVehTypeDepServiceInsertion.java
View file

@ -26,7 +26,6 @@ import java.util.Collection;
import org.apache.log4j.Logger;
import algorithms.InsertionData.NoInsertionFound;
import algorithms.VehicleFleetManager.TypeKey;
import basics.Job;
import basics.route.Driver;
import basics.route.Vehicle;

4
jsprit-core/src/main/java/algorithms/CalcUtils.java → jsprit-core/src/main/java/algorithms/CalculationUtils.java
View file

@ -22,7 +22,7 @@ package algorithms;
import basics.route.TourActivity;
class CalcUtils {
public class CalculationUtils {
/**
@ -32,7 +32,7 @@ class CalcUtils {
* @param act
* @return
*/
static double getActivityEndTime(double actArrTime, TourActivity act){
public static double getActivityEndTime(double actArrTime, TourActivity act){
return Math.max(actArrTime, act.getTheoreticalEarliestOperationStartTime()) + act.getOperationTime();
}
}

2
jsprit-core/src/main/java/algorithms/CalculatorBuilder.java
View file

@ -23,7 +23,7 @@ package algorithms;
import java.util.ArrayList;
import java.util.List;
import algorithms.HardConstraints.ConstraintManager;
import algorithms.constraints.ConstraintManager;
import basics.VehicleRoutingProblem;
import basics.algo.InsertionListener;
import basics.algo.VehicleRoutingAlgorithmListeners.PrioritizedVRAListener;

21
jsprit-core/src/main/java/algorithms/FiniteFleetManagerFactory.java Normal file
View file

@ -0,0 +1,21 @@
package algorithms;
import java.util.Collection;
import basics.route.Vehicle;
public class FiniteFleetManagerFactory implements VehicleFleetManagerFactory{
private Collection<Vehicle> vehicles;
public FiniteFleetManagerFactory(Collection<Vehicle> vehicles) {
super();
this.vehicles = vehicles;
}
@Override
public VehicleFleetManager createFleetManager() {
return new VehicleFleetManagerImpl(vehicles);
}
}

311
jsprit-core/src/main/java/algorithms/HardConstraints.java
View file

@ -1,311 +0,0 @@
/*******************************************************************************
* Copyright (C) 2013 Stefan Schroeder
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributors:
* Stefan Schroeder - initial API and implementation
******************************************************************************/
package algorithms;
import java.util.ArrayList;
import java.util.Collection;
import org.apache.log4j.Logger;
import basics.Delivery;
import basics.Pickup;
import basics.Service;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.DeliveryActivity;
import basics.route.PickupActivity;
import basics.route.ServiceActivity;
import basics.route.Start;
import basics.route.TourActivity;
/**
* collection of hard constrainters bot at activity and at route level.
*
* <p>HardPickupAndDeliveryLoadConstraint requires LOAD_AT_DEPOT and LOAD (i.e. load at end) at route-level
*
* <p>HardTimeWindowConstraint requires LATEST_OPERATION_START_TIME
*
* <p>HardPickupAndDeliveryConstraint requires LOAD_AT_DEPOT and LOAD at route-level and FUTURE_PICKS and PAST_DELIVIERS on activity-level
*
* <p>HardPickupAndDeliveryBackhaulConstraint requires LOAD_AT_DEPOT and LOAD at route-level and FUTURE_PICKS and PAST_DELIVIERS on activity-level
*
* @author stefan
*
*/
class HardConstraints {
interface HardRouteLevelConstraint {
public boolean fulfilled(InsertionContext insertionContext);
}
interface HardActivityLevelConstraint {
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime);
}
static class HardRouteLevelConstraintManager implements HardRouteLevelConstraint {
private Collection<HardRouteLevelConstraint> hardConstraints = new ArrayList<HardRouteLevelConstraint>();
public void addConstraint(HardRouteLevelConstraint constraint){
hardConstraints.add(constraint);
}
@Override
public boolean fulfilled(InsertionContext insertionContext) {
for(HardRouteLevelConstraint constraint : hardConstraints){
if(!constraint.fulfilled(insertionContext)){
return false;
}
}
return true;
}
}
static class ConstraintManager implements HardActivityLevelConstraint, HardRouteLevelConstraint{
private HardActivityLevelConstraintManager actLevelConstraintManager = new HardActivityLevelConstraintManager();
private HardRouteLevelConstraintManager routeLevelConstraintManager = new HardRouteLevelConstraintManager();
public void addConstraint(HardActivityLevelConstraint actLevelConstraint){
actLevelConstraintManager.addConstraint(actLevelConstraint);
}
public void addConstraint(HardRouteLevelConstraint routeLevelConstraint){
routeLevelConstraintManager.addConstraint(routeLevelConstraint);
}
@Override
public boolean fulfilled(InsertionContext insertionContext) {
return routeLevelConstraintManager.fulfilled(insertionContext);
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct,TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
return actLevelConstraintManager.fulfilled(iFacts, prevAct, newAct, nextAct, prevActDepTime);
}
}
static class HardActivityLevelConstraintManager implements HardActivityLevelConstraint {
private Collection<HardActivityLevelConstraint> hardConstraints = new ArrayList<HardActivityLevelConstraint>();
public void addConstraint(HardActivityLevelConstraint constraint){
hardConstraints.add(constraint);
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
for(HardActivityLevelConstraint constraint : hardConstraints){
if(!constraint.fulfilled(iFacts, prevAct, newAct, nextAct, prevActDepTime)){
return false;
}
}
return true;
}
}
static class HardLoadConstraint implements HardRouteLevelConstraint{
private StateManager states;
public HardLoadConstraint(StateManager states) {
super();
this.states = states;
}
@Override
public boolean fulfilled(InsertionContext insertionContext) {
int currentLoad = (int) states.getRouteState(insertionContext.getRoute(), StateTypes.LOAD).toDouble();
Service service = (Service) insertionContext.getJob();
if(currentLoad + service.getCapacityDemand() > insertionContext.getNewVehicle().getCapacity()){
return false;
}
return true;
}
}
/**
* lsjdfjsdlfjsa
*
* @author stefan
*
*/
static class HardPickupAndDeliveryLoadConstraint implements HardRouteLevelConstraint {
private StateManager stateManager;
public HardPickupAndDeliveryLoadConstraint(StateManager stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public boolean fulfilled(InsertionContext insertionContext) {
if(insertionContext.getJob() instanceof Delivery){
int loadAtDepot = (int) stateManager.getRouteState(insertionContext.getRoute(), StateTypes.LOAD_AT_DEPOT).toDouble();
if(loadAtDepot + insertionContext.getJob().getCapacityDemand() > insertionContext.getNewVehicle().getCapacity()){
return false;
}
}
else if(insertionContext.getJob() instanceof Pickup || insertionContext.getJob() instanceof Service){
int loadAtEnd = (int) stateManager.getRouteState(insertionContext.getRoute(), StateTypes.LOAD).toDouble();
if(loadAtEnd + insertionContext.getJob().getCapacityDemand() > insertionContext.getNewVehicle().getCapacity()){
return false;
}
}
return true;
}
}
/**
* ljsljslfjs
* @author stefan
*
*/
public static class HardTimeWindowActivityLevelConstraint implements HardActivityLevelConstraint {
private static Logger log = Logger.getLogger(HardTimeWindowActivityLevelConstraint.class);
private StateManager states;
private VehicleRoutingTransportCosts routingCosts;
public HardTimeWindowActivityLevelConstraint(StateManager states, VehicleRoutingTransportCosts routingCosts) {
super();
this.states = states;
this.routingCosts = routingCosts;
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
// log.info("check insertion of " + newAct + " between " + prevAct + " and " + nextAct + ". prevActDepTime=" + prevActDepTime);
double arrTimeAtNewAct = prevActDepTime + routingCosts.getTransportTime(prevAct.getLocationId(), newAct.getLocationId(), prevActDepTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
double latestArrTimeAtNewAct = states.getActivityState(newAct, StateTypes.LATEST_OPERATION_START_TIME).toDouble();
if(arrTimeAtNewAct > latestArrTimeAtNewAct){
return false;
}
// log.info(newAct + " arrTime=" + arrTimeAtNewAct);
double endTimeAtNewAct = CalcUtils.getActivityEndTime(arrTimeAtNewAct, newAct);
double arrTimeAtNextAct = endTimeAtNewAct + routingCosts.getTransportTime(newAct.getLocationId(), nextAct.getLocationId(), endTimeAtNewAct, iFacts.getNewDriver(), iFacts.getNewVehicle());
double latestArrTimeAtNextAct = states.getActivityState(nextAct, StateTypes.LATEST_OPERATION_START_TIME).toDouble();
if(arrTimeAtNextAct > latestArrTimeAtNextAct){
return false;
}
// log.info(nextAct + " arrTime=" + arrTimeAtNextAct);
return true;
}
}
static class HardPickupAndDeliveryActivityLevelConstraint implements HardActivityLevelConstraint {
private StateManager stateManager;
public HardPickupAndDeliveryActivityLevelConstraint(StateManager stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
int loadAtPrevAct;
int futurePicks;
int pastDeliveries;
if(prevAct instanceof Start){
loadAtPrevAct = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD_AT_DEPOT).toDouble();
futurePicks = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD).toDouble();
pastDeliveries = 0;
}
else{
loadAtPrevAct = (int) stateManager.getActivityState(prevAct, StateTypes.LOAD).toDouble();
futurePicks = (int) stateManager.getActivityState(prevAct, StateTypes.FUTURE_PICKS).toDouble();
pastDeliveries = (int) stateManager.getActivityState(prevAct, StateTypes.PAST_DELIVERIES).toDouble();
}
if(newAct instanceof PickupActivity || newAct instanceof ServiceActivity){
if(loadAtPrevAct + newAct.getCapacityDemand() + futurePicks > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
if(newAct instanceof DeliveryActivity){
if(loadAtPrevAct + Math.abs(newAct.getCapacityDemand()) + pastDeliveries > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
return true;
}
}
static class HardPickupAndDeliveryBackhaulActivityLevelConstraint implements HardActivityLevelConstraint {
private StateManager stateManager;
public HardPickupAndDeliveryBackhaulActivityLevelConstraint(StateManager stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
if(newAct instanceof PickupActivity && nextAct instanceof DeliveryActivity){ return false; }
if(newAct instanceof ServiceActivity && nextAct instanceof DeliveryActivity){ return false; }
if(newAct instanceof DeliveryActivity && prevAct instanceof PickupActivity){ return false; }
if(newAct instanceof DeliveryActivity && prevAct instanceof ServiceActivity){ return false; }
int loadAtPrevAct;
int futurePicks;
int pastDeliveries;
if(prevAct instanceof Start){
loadAtPrevAct = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD_AT_DEPOT).toDouble();
futurePicks = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD).toDouble();
pastDeliveries = 0;
}
else{
loadAtPrevAct = (int) stateManager.getActivityState(prevAct, StateTypes.LOAD).toDouble();
futurePicks = (int) stateManager.getActivityState(prevAct, StateTypes.FUTURE_PICKS).toDouble();
pastDeliveries = (int) stateManager.getActivityState(prevAct, StateTypes.PAST_DELIVERIES).toDouble();
}
if(newAct instanceof PickupActivity || newAct instanceof ServiceActivity){
if(loadAtPrevAct + newAct.getCapacityDemand() + futurePicks > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
if(newAct instanceof DeliveryActivity){
if(loadAtPrevAct + Math.abs(newAct.getCapacityDemand()) + pastDeliveries > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
return true;
}
}
}

21
jsprit-core/src/main/java/algorithms/InfiniteFleetManagerFactory.java Normal file
View file

@ -0,0 +1,21 @@
package algorithms;
import java.util.Collection;
import basics.route.Vehicle;
public class InfiniteFleetManagerFactory implements VehicleFleetManagerFactory{
private Collection<Vehicle> vehicles;
public InfiniteFleetManagerFactory(Collection<Vehicle> vehicles) {
super();
this.vehicles = vehicles;
}
@Override
public VehicleFleetManager createFleetManager() {
return new InfiniteVehicles(vehicles);
}
}

10
jsprit-core/src/main/java/algorithms/InfiniteVehicles.java
View file

@ -45,9 +45,9 @@ class InfiniteVehicles implements VehicleFleetManager{
private static Logger logger = Logger.getLogger(InfiniteVehicles.class);
private Map<TypeKey,Vehicle> types = new HashMap<TypeKey, Vehicle>();
private Map<VehicleTypeKey,Vehicle> types = new HashMap<VehicleTypeKey, Vehicle>();
private List<TypeKey> sortedTypes = new ArrayList<VehicleFleetManager.TypeKey>();
private List<VehicleTypeKey> sortedTypes = new ArrayList<VehicleTypeKey>();
public InfiniteVehicles(Collection<Vehicle> vehicles){
extractTypes(vehicles);
@ -61,7 +61,7 @@ class InfiniteVehicles implements VehicleFleetManager{
private void extractTypes(Collection<Vehicle> vehicles) {
for(Vehicle v : vehicles){
TypeKey typeKey = new TypeKey(v.getType().getTypeId(),v.getLocationId());
VehicleTypeKey typeKey = new VehicleTypeKey(v.getType().getTypeId(),v.getLocationId());
types.put(typeKey,v);
sortedTypes.add(typeKey);
@ -99,8 +99,8 @@ class InfiniteVehicles implements VehicleFleetManager{
@Override
public Collection<Vehicle> getAvailableVehicles(String withoutThisType, String locationId) {
Collection<Vehicle> vehicles = new ArrayList<Vehicle>();
TypeKey thisKey = new TypeKey(withoutThisType,locationId);
for(TypeKey key : types.keySet()){
VehicleTypeKey thisKey = new VehicleTypeKey(withoutThisType,locationId);
for(VehicleTypeKey key : types.keySet()){
if(!key.equals(thisKey)){
vehicles.add(types.get(key));
}

4
jsprit-core/src/main/java/algorithms/InitialSolutionFactory.java
View file

@ -17,8 +17,8 @@ import basics.VehicleRoutingProblemSolution;
interface InitialSolutionFactory {
public interface InitialSolutionFactory {
public VehicleRoutingProblemSolution createInitialSolution(VehicleRoutingProblem vrp);
public VehicleRoutingProblemSolution createSolution(VehicleRoutingProblem vrp);
}

2
jsprit-core/src/main/java/algorithms/InsertionContext.java
View file

@ -25,7 +25,7 @@ import basics.route.Driver;
import basics.route.Vehicle;
import basics.route.VehicleRoute;
class InsertionContext {
public class InsertionContext {
private VehicleRoute route;
private Job job;

21
jsprit-core/src/main/java/algorithms/InsertionFactory.java
View file

@ -27,8 +27,7 @@ import java.util.concurrent.ExecutorService;
import org.apache.commons.configuration.HierarchicalConfiguration;
import org.apache.log4j.Logger;
import algorithms.HardConstraints.ConstraintManager;
import algorithms.StateUpdates.UpdateStates;
import algorithms.constraints.ConstraintManager;
import basics.VehicleRoutingProblem;
import basics.algo.InsertionListener;
import basics.algo.VehicleRoutingAlgorithmListeners.PrioritizedVRAListener;
@ -39,8 +38,7 @@ class InsertionFactory {
public static InsertionStrategy createInsertion(VehicleRoutingProblem vrp, HierarchicalConfiguration config,
VehicleFleetManager vehicleFleetManager, StateManagerImpl routeStates, List<PrioritizedVRAListener> algorithmListeners, ExecutorService executorService, int nuOfThreads, ConstraintManager constraintManager){
boolean concurrentInsertion = false;
if(executorService != null) concurrentInsertion = true;
if(config.containsKey("[@name]")){
String insertionName = config.getString("[@name]");
if(!insertionName.equals("bestInsertion") && !insertionName.equals("regretInsertion")){
@ -100,21 +98,8 @@ class InsertionFactory {
if(insertionName.equals("bestInsertion")){
insertionStrategy = new BestInsertion(jic);
}
// else if(insertionName.equals("regretInsertion")){
// insertionStrategy = RegretInsertion.newInstance(routeAlgorithm);
// }
// insertionStrategy.addListener(new RemoveEmptyVehicles(vehicleFleetManager));
// insertionStrategy.addListener(new ResetAndIniFleetManager(vehicleFleetManager));
// insertionStrategy.addListener(new VehicleSwitched(vehicleFleetManager));
// insertionStrategy.addListener(new UpdateLoadAtRouteLevel(routeStates));
// insertionStrategy.addListener(new UpdateStates(routeStates, vrp.getTransportCosts(), vrp.getActivityCosts()));
for(InsertionListener l : insertionListeners) insertionStrategy.addListener(l);
// insertionStrategy.addListener(new FindCheaperVehicle(
// new FindCheaperVehicleAlgoNew(vehicleFleetManager, tourStateCalculator, auxCalculator)));
algorithmListeners.addAll(algoListeners);
return insertionStrategy;

26
jsprit-core/src/main/java/algorithms/InsertionStrategy.java
View file

@ -29,32 +29,6 @@ import basics.route.VehicleRoute;
public interface InsertionStrategy {
class Insertion {
private final VehicleRoute route;
private final InsertionData insertionData;
public Insertion(VehicleRoute vehicleRoute, InsertionData insertionData) {
super();
this.route = vehicleRoute;
this.insertionData = insertionData;
}
public VehicleRoute getRoute() {
return route;
}
public InsertionData getInsertionData() {
return insertionData;
}
}
/**
* Assigns the unassigned jobs to service-providers
*

4
jsprit-core/src/main/java/algorithms/MarginalsCalculusTriangleInequality.java
View file

@ -20,7 +20,7 @@
******************************************************************************/
package algorithms;
import algorithms.HardConstraints.HardActivityLevelConstraint;
import algorithms.constraints.HardActivityLevelConstraint;
import basics.costs.VehicleRoutingActivityCosts;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.TourActivity;
@ -50,7 +50,7 @@ class MarginalsCalculusTriangleInequality implements ActivityInsertionCostCalcul
double newAct_arrTime = depTimeAtPrevAct + tp_time_prevAct_newAct;
double newAct_endTime = CalcUtils.getActivityEndTime(newAct_arrTime, newAct);
double newAct_endTime = CalculationUtils.getActivityEndTime(newAct_arrTime, newAct);
double act_costs_newAct = activityCosts.getActivityCost(newAct, newAct_arrTime, iFacts.getNewDriver(), iFacts.getNewVehicle());

4
jsprit-core/src/main/java/algorithms/RemoveEmptyVehicles.java
View file

@ -31,13 +31,13 @@ import basics.algo.InsertionEndsListener;
import basics.algo.InsertionStartsListener;
import basics.route.VehicleRoute;
class RemoveEmptyVehicles implements InsertionEndsListener{
public class RemoveEmptyVehicles implements InsertionEndsListener{
private static Logger log = Logger.getLogger(RemoveEmptyVehicles.class);
private VehicleFleetManager fleetManager;
RemoveEmptyVehicles(VehicleFleetManager fleetManager) {
public RemoveEmptyVehicles(VehicleFleetManager fleetManager) {
super();
this.fleetManager = fleetManager;
}

2
jsprit-core/src/main/java/algorithms/ReverseActivityVisitor.java
View file

@ -3,7 +3,7 @@ package algorithms;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
interface ReverseActivityVisitor {
public interface ReverseActivityVisitor {
public void begin(VehicleRoute route);

2
jsprit-core/src/main/java/algorithms/ReverseRouteActivityVisitor.java
View file

@ -7,7 +7,7 @@ import java.util.Iterator;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
class ReverseRouteActivityVisitor implements RouteVisitor{
public class ReverseRouteActivityVisitor implements RouteVisitor{
private Collection<ReverseActivityVisitor> visitors = new ArrayList<ReverseActivityVisitor>();

2
jsprit-core/src/main/java/algorithms/RouteActivityVisitor.java
View file

@ -6,7 +6,7 @@ import java.util.Collection;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
class RouteActivityVisitor implements RouteVisitor{
public class RouteActivityVisitor implements RouteVisitor{
private Collection<ActivityVisitor> visitors = new ArrayList<ActivityVisitor>();

2
jsprit-core/src/main/java/algorithms/RouteVisitor.java
View file

@ -2,7 +2,7 @@ package algorithms;
import basics.route.VehicleRoute;
interface RouteVisitor {
public interface RouteVisitor {
public void visit(VehicleRoute route);

1
jsprit-core/src/main/java/algorithms/RuinRadial.java
View file

@ -30,6 +30,7 @@ import util.StopWatch;
import basics.Job;
import basics.VehicleRoutingProblem;
import basics.algo.RuinListener;
import basics.algo.RuinListeners;
import basics.route.VehicleRoute;

1
jsprit-core/src/main/java/algorithms/RuinRandom.java
View file

@ -24,6 +24,7 @@ import util.RandomNumberGeneration;
import basics.Job;
import basics.VehicleRoutingProblem;
import basics.algo.RuinListener;
import basics.algo.RuinListeners;
import basics.route.VehicleRoute;

36
jsprit-core/src/main/java/algorithms/StateManager.java
View file

@ -29,42 +29,6 @@ public interface StateManager {
double toDouble();
}
class StateImpl implements State{
double state;
public StateImpl(double state) {
super();
this.state = state;
}
@Override
public double toDouble() {
return state;
}
// public void setState(double val){
// state=val;
// }
}
interface States {
// void putState(String key, State state);
State getState(String key);
}
// Map<VehicleRoute, States> getRouteStates();
// void put(VehicleRoute route, States states);
// Map<TourActivity, States> getActivityStates();
// void put(TourActivity act, States states);
State getActivityState(TourActivity act, String stateType);
State getRouteState(VehicleRoute route, String stateType);

79
jsprit-core/src/main/java/algorithms/StateManagerImpl.java
View file

@ -25,21 +25,45 @@ import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import algorithms.StateManager.State;
import basics.Job;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblemSolution;
import basics.algo.InsertionEndsListener;
import basics.algo.InsertionListener;
import basics.algo.InsertionListeners;
import basics.algo.InsertionStartsListener;
import basics.algo.IterationStartsListener;
import basics.algo.JobInsertedListener;
import basics.algo.RuinListener;
import basics.algo.RuinListeners;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
public class StateManagerImpl implements StateManager, IterationStartsListener, RuinListener, InsertionStartsListener, JobInsertedListener, InsertionEndsListener {
static class StatesImpl implements States{
private interface States {
State getState(String key);
}
public static class StateImpl implements State{
double state;
public StateImpl(double state) {
super();
this.state = state;
}
@Override
public double toDouble() {
return state;
}
}
private static class StatesImpl implements States{
private Map<String,State> states = new HashMap<String, State>();
@ -54,9 +78,9 @@ public class StateManagerImpl implements StateManager, IterationStartsListener,
}
private Map<VehicleRoute,States> vehicleRouteStates = new HashMap<VehicleRoute, StateManager.States>();
private Map<VehicleRoute,States> vehicleRouteStates = new HashMap<VehicleRoute, States>();
private Map<TourActivity,States> activityStates = new HashMap<TourActivity, StateManager.States>();
private Map<TourActivity,States> activityStates = new HashMap<TourActivity, States>();
private RouteActivityVisitor routeActivityVisitor = new RouteActivityVisitor();
@ -64,6 +88,27 @@ public class StateManagerImpl implements StateManager, IterationStartsListener,
private Collection<RouteVisitor> routeVisitors = new ArrayList<RouteVisitor>();
private RuinListeners ruinListeners = new RuinListeners();
private InsertionListeners insertionListeners = new InsertionListeners();
public void addListener(RuinListener ruinListener){
ruinListeners.addListener(ruinListener);
}
public void removeListener(RuinListener ruinListener){
ruinListeners.removeListener(ruinListener);
}
public void addListener(InsertionListener insertionListener){
insertionListeners.addListener(insertionListener);
}
public void removeListener(InsertionListener insertionListener){
insertionListeners.removeListener(insertionListener);
}
public void clear(){
vehicleRouteStates.clear();
activityStates.clear();
@ -133,6 +178,7 @@ public class StateManagerImpl implements StateManager, IterationStartsListener,
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
insertionListeners.jobInserted(job2insert, inRoute, additionalCosts, additionalTime);
for(RouteVisitor v : routeVisitors){ v.visit(inRoute); }
routeActivityVisitor.visit(inRoute);
revRouteActivityVisitor.visit(inRoute);
@ -140,6 +186,7 @@ public class StateManagerImpl implements StateManager, IterationStartsListener,
@Override
public void informInsertionStarts(Collection<VehicleRoute> vehicleRoutes,Collection<Job> unassignedJobs) {
insertionListeners.insertionStarts(vehicleRoutes, unassignedJobs);
for(VehicleRoute route : vehicleRoutes){
for(RouteVisitor v : routeVisitors){ v.visit(route); }
routeActivityVisitor.visit(route);
@ -147,10 +194,24 @@ public class StateManagerImpl implements StateManager, IterationStartsListener,
}
}
/**
* Adds an activityVisitor.
* <p>This visitor visits all activities in a route subsequently in two cases. First, if insertionStart (after ruinStrategies have removed activities from routes)
* and, second, if a job has been inserted and thus if a route has changed.
*
* @param activityVistor
*/
public void addActivityVisitor(ActivityVisitor activityVistor){
routeActivityVisitor.addActivityVisitor(activityVistor);
}
/**
* Adds an reverseActivityVisitor.
* <p>This reverseVisitor visits all activities in a route subsequently (starting from the end of the route) in two cases. First, if insertionStart (after ruinStrategies have removed activities from routes)
* and, second, if a job has been inserted and thus if a route has changed.
*
* @param reverseActivityVistor
*/
public void addActivityVisitor(ReverseActivityVisitor activityVistor){
revRouteActivityVisitor.addActivityVisitor(activityVistor);
}
@ -166,25 +227,21 @@ public class StateManagerImpl implements StateManager, IterationStartsListener,
@Override
public void ruinStarts(Collection<VehicleRoute> routes) {
// TODO Auto-generated method stub
ruinListeners.ruinStarts(routes);
}
@Override
public void ruinEnds(Collection<VehicleRoute> routes, Collection<Job> unassignedJobs) {
// TODO Auto-generated method stub
ruinListeners.ruinEnds(routes, unassignedJobs);
}
@Override
public void removed(Job job, VehicleRoute fromRoute) {
// TODO Auto-generated method stub
ruinListeners.removed(job, fromRoute);
}
@Override
public void informInsertionEnds(Collection<VehicleRoute> vehicleRoutes) {
// TODO Auto-generated method stub
insertionListeners.insertionEnds(vehicleRoutes);
}
}

18
jsprit-core/src/main/java/algorithms/StateTypes.java
View file

@ -20,20 +20,20 @@
******************************************************************************/
package algorithms;
class StateTypes {
final static String LOAD = "load";
public class StateTypes {
public final static String LOAD = "load";
final static String LOAD_AT_DEPOT = "loadAtDepot";
public final static String LOAD_AT_DEPOT = "loadAtDepot";
final static String DURATION = "duration";
public final static String DURATION = "duration";
final static String LATEST_OPERATION_START_TIME = "latestOST";
public final static String LATEST_OPERATION_START_TIME = "latestOST";
final static String EARLIEST_OPERATION_START_TIME = "earliestOST";
public final static String EARLIEST_OPERATION_START_TIME = "earliestOST";
static final String COSTS = "costs";
public static final String COSTS = "costs";
final static String FUTURE_PICKS = "futurePicks";
public final static String FUTURE_PICKS = "futurePicks";
final static String PAST_DELIVERIES = "pastDeliveries";
public final static String PAST_DELIVERIES = "pastDeliveries";
}

636
jsprit-core/src/main/java/algorithms/StateUpdates.java
View file

@ -1,636 +0,0 @@
/*******************************************************************************
* Copyright (C) 2013 Stefan Schroeder
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributors:
* Stefan Schroeder - initial API and implementation
******************************************************************************/
package algorithms;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.apache.log4j.Logger;
import algorithms.BackwardInTimeListeners.BackwardInTimeListener;
import algorithms.ForwardInTimeListeners.ForwardInTimeListener;
import algorithms.StateManager.StateImpl;
import basics.Delivery;
import basics.Job;
import basics.Pickup;
import basics.Service;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblemSolution;
import basics.algo.InsertionEndsListener;
import basics.algo.InsertionStartsListener;
import basics.algo.IterationEndsListener;
import basics.algo.IterationStartsListener;
import basics.algo.JobInsertedListener;
import basics.algo.RuinListener;
import basics.algo.VehicleRoutingAlgorithmListener;
import basics.costs.ForwardTransportCost;
import basics.costs.ForwardTransportTime;
import basics.costs.VehicleRoutingActivityCosts;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.DeliveryActivity;
import basics.route.Driver;
import basics.route.End;
import basics.route.PickupActivity;
import basics.route.ServiceActivity;
import basics.route.Start;
import basics.route.TourActivity;
import basics.route.Vehicle;
import basics.route.VehicleRoute;
class StateUpdates {
static class UpdateCostsAtRouteLevel implements JobInsertedListener, InsertionStartsListener, InsertionEndsListener{
private StateManagerImpl states;
private VehicleRoutingTransportCosts tpCosts;
private VehicleRoutingActivityCosts actCosts;
public UpdateCostsAtRouteLevel(StateManagerImpl states, VehicleRoutingTransportCosts tpCosts, VehicleRoutingActivityCosts actCosts) {
super();
this.states = states;
this.tpCosts = tpCosts;
this.actCosts = actCosts;
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
// inRoute.getVehicleRouteCostCalculator().addTransportCost(additionalCosts);
double oldCosts = states.getRouteState(inRoute, StateTypes.COSTS).toDouble();
oldCosts += additionalCosts;
states.putRouteState(inRoute, StateTypes.COSTS, new StateImpl(oldCosts));
}
@Override
public void informInsertionStarts(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs) {
RouteActivityVisitor forwardInTime = new RouteActivityVisitor();
forwardInTime.addActivityVisitor(new UpdateCostsAtAllLevels(actCosts, tpCosts, states));
for(VehicleRoute route : vehicleRoutes){
forwardInTime.visit(route);
}
}
@Override
public void informInsertionEnds(Collection<VehicleRoute> vehicleRoutes) {
// IterateRouteForwardInTime forwardInTime = new IterateRouteForwardInTime(tpCosts);
// forwardInTime.addListener(new UpdateCostsAtAllLevels(actCosts, tpCosts, states));
for(VehicleRoute route : vehicleRoutes){
if(route.isEmpty()) continue;
route.getVehicleRouteCostCalculator().reset();
route.getVehicleRouteCostCalculator().addOtherCost(states.getRouteState(route, StateTypes.COSTS).toDouble());
route.getVehicleRouteCostCalculator().price(route.getVehicle());
// forwardInTime.iterate(route);
}
}
}
static class UpdateActivityTimes implements ActivityVisitor{
private Logger log = Logger.getLogger(UpdateActivityTimes.class);
private ActivityTimeTracker timeTracker;
private VehicleRoute route;
public UpdateActivityTimes(ForwardTransportTime transportTime) {
super();
timeTracker = new ActivityTimeTracker(transportTime);
}
@Override
public void begin(VehicleRoute route) {
timeTracker.begin(route);
this.route = route;
route.getStart().setEndTime(timeTracker.getActEndTime());
}
@Override
public void visit(TourActivity activity) {
timeTracker.visit(activity);
activity.setArrTime(timeTracker.getActArrTime());
activity.setEndTime(timeTracker.getActEndTime());
}
@Override
public void finish() {
timeTracker.finish();
route.getEnd().setArrTime(timeTracker.getActArrTime());
}
}
static class UpdateCostsAtAllLevels implements ActivityVisitor{
private static Logger log = Logger.getLogger(UpdateCostsAtAllLevels.class);
private VehicleRoutingActivityCosts activityCost;
private ForwardTransportCost transportCost;
private StateManagerImpl states;
private double totalOperationCost = 0.0;
private VehicleRoute vehicleRoute = null;
private TourActivity prevAct = null;
private double startTimeAtPrevAct = 0.0;
private ActivityTimeTracker timeTracker;
public UpdateCostsAtAllLevels(VehicleRoutingActivityCosts activityCost, VehicleRoutingTransportCosts transportCost, StateManagerImpl states) {
super();
this.activityCost = activityCost;
this.transportCost = transportCost;
this.states = states;
timeTracker = new ActivityTimeTracker(transportCost);
}
@Override
public void begin(VehicleRoute route) {
vehicleRoute = route;
vehicleRoute.getVehicleRouteCostCalculator().reset();
timeTracker.begin(route);
prevAct = route.getStart();
startTimeAtPrevAct = timeTracker.getActEndTime();
}
@Override
public void visit(TourActivity act) {
timeTracker.visit(act);
double transportCost = this.transportCost.getTransportCost(prevAct.getLocationId(), act.getLocationId(), startTimeAtPrevAct, vehicleRoute.getDriver(), vehicleRoute.getVehicle());
double actCost = activityCost.getActivityCost(act, timeTracker.getActArrTime(), vehicleRoute.getDriver(), vehicleRoute.getVehicle());
vehicleRoute.getVehicleRouteCostCalculator().addTransportCost(transportCost);
vehicleRoute.getVehicleRouteCostCalculator().addActivityCost(actCost);
totalOperationCost += transportCost;
totalOperationCost += actCost;
states.putActivityState(act, StateTypes.COSTS, new StateImpl(totalOperationCost));
prevAct = act;
startTimeAtPrevAct = timeTracker.getActEndTime();
}
@Override
public void finish() {
timeTracker.finish();
double transportCost = this.transportCost.getTransportCost(prevAct.getLocationId(), vehicleRoute.getEnd().getLocationId(), startTimeAtPrevAct, vehicleRoute.getDriver(), vehicleRoute.getVehicle());
double actCost = activityCost.getActivityCost(vehicleRoute.getEnd(), timeTracker.getActEndTime(), vehicleRoute.getDriver(), vehicleRoute.getVehicle());
vehicleRoute.getVehicleRouteCostCalculator().addTransportCost(transportCost);
vehicleRoute.getVehicleRouteCostCalculator().addActivityCost(actCost);
totalOperationCost += transportCost;
totalOperationCost += actCost;
states.putRouteState(vehicleRoute, StateTypes.COSTS, new StateImpl(totalOperationCost));
//this is rather strange and likely to change
vehicleRoute.getVehicleRouteCostCalculator().price(vehicleRoute.getDriver());
vehicleRoute.getVehicleRouteCostCalculator().price(vehicleRoute.getVehicle());
vehicleRoute.getVehicleRouteCostCalculator().finish();
startTimeAtPrevAct = 0.0;
prevAct = null;
vehicleRoute = null;
totalOperationCost = 0.0;
}
}
static class UpdateEarliestStartTimeWindowAtActLocations implements ActivityVisitor{
private StateManagerImpl states;
private ActivityTimeTracker timeTracker;
public UpdateEarliestStartTimeWindowAtActLocations(StateManagerImpl states, VehicleRoutingTransportCosts transportCosts) {
super();
this.states = states;
timeTracker = new ActivityTimeTracker(transportCosts);
}
@Override
public void begin(VehicleRoute route) {
timeTracker.begin(route);
}
@Override
public void visit(TourActivity activity) {
timeTracker.visit(activity);
states.putActivityState(activity, StateTypes.EARLIEST_OPERATION_START_TIME, new StateImpl(Math.max(timeTracker.getActArrTime(), activity.getTheoreticalEarliestOperationStartTime())));
}
@Override
public void finish() {}
}
static class UpdateLatestOperationStartTimeAtActLocations implements ReverseActivityVisitor{
private static Logger log = Logger.getLogger(UpdateLatestOperationStartTimeAtActLocations.class);
private StateManagerImpl states;
private VehicleRoute route;
private VehicleRoutingTransportCosts transportCosts;
private double latestArrTimeAtPrevAct;
private TourActivity prevAct;
public UpdateLatestOperationStartTimeAtActLocations(StateManagerImpl states, VehicleRoutingTransportCosts tpCosts) {
super();
this.states = states;
this.transportCosts = tpCosts;
}
@Override
public void begin(VehicleRoute route) {
this.route = route;
latestArrTimeAtPrevAct = route.getEnd().getTheoreticalLatestOperationStartTime();
prevAct = route.getEnd();
}
@Override
public void visit(TourActivity activity) {
double potentialLatestArrivalTimeAtCurrAct = latestArrTimeAtPrevAct - transportCosts.getBackwardTransportTime(activity.getLocationId(), prevAct.getLocationId(), latestArrTimeAtPrevAct, route.getDriver(),route.getVehicle()) - activity.getOperationTime();
double latestArrivalTime = Math.min(activity.getTheoreticalLatestOperationStartTime(), potentialLatestArrivalTimeAtCurrAct);
states.putActivityState(activity, StateTypes.LATEST_OPERATION_START_TIME, new StateImpl(latestArrivalTime));
latestArrTimeAtPrevAct = latestArrivalTime;
prevAct = activity;
}
@Override
public void finish() {}
}
static class UpdateLoadAtAllLevels implements ActivityVisitor{
private double load = 0.0;
private StateManagerImpl states;
private VehicleRoute vehicleRoute;
public UpdateLoadAtAllLevels(StateManagerImpl states) {
super();
this.states = states;
}
@Override
public void begin(VehicleRoute route) {
vehicleRoute = route;
}
@Override
public void visit(TourActivity activity) {
load += (double)activity.getCapacityDemand();
states.putActivityState(activity, StateTypes.LOAD, new StateImpl(load));
}
@Override
public void finish() {
states.putRouteState(vehicleRoute, StateTypes.LOAD, new StateImpl(load));
load=0;
vehicleRoute = null;
}
}
static class UpdateLoadAtRouteLevel implements JobInsertedListener, InsertionStartsListener{
private StateManagerImpl states;
public UpdateLoadAtRouteLevel(StateManagerImpl states) {
super();
this.states = states;
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
if(!(job2insert instanceof Service)){
return;
}
double oldLoad = states.getRouteState(inRoute, StateTypes.LOAD).toDouble();
states.putRouteState(inRoute, StateTypes.LOAD, new StateImpl(oldLoad + job2insert.getCapacityDemand()));
}
@Override
public void informInsertionStarts(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs) {
for(VehicleRoute route : vehicleRoutes){
int load = 0;
for(Job j : route.getTourActivities().getJobs()){
load += j.getCapacityDemand();
}
states.putRouteState(route, StateTypes.LOAD, new StateImpl(load));
}
}
}
static class UpdateStates implements JobInsertedListener, RuinListener{
private RouteActivityVisitor routeActivityVisitor;
private ReverseRouteActivityVisitor revRouteActivityVisitor;
public UpdateStates(StateManagerImpl states, VehicleRoutingTransportCosts routingCosts, VehicleRoutingActivityCosts activityCosts) {
routeActivityVisitor = new RouteActivityVisitor();
routeActivityVisitor.addActivityVisitor(new UpdateActivityTimes(routingCosts));
routeActivityVisitor.addActivityVisitor(new UpdateCostsAtAllLevels(activityCosts, routingCosts, states));
routeActivityVisitor.addActivityVisitor(new UpdateLoadAtAllLevels(states));
revRouteActivityVisitor = new ReverseRouteActivityVisitor();
revRouteActivityVisitor.addActivityVisitor(new UpdateLatestOperationStartTimeAtActLocations(states, routingCosts));
}
public void update(VehicleRoute route){
routeActivityVisitor.visit(route);
revRouteActivityVisitor.visit(route);
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
routeActivityVisitor.visit(inRoute);
revRouteActivityVisitor.visit(inRoute);
}
@Override
public void ruinStarts(Collection<VehicleRoute> routes) {}
@Override
public void ruinEnds(Collection<VehicleRoute> routes,Collection<Job> unassignedJobs) {
for(VehicleRoute route : routes) {
routeActivityVisitor.visit(route);
revRouteActivityVisitor.visit(route);
}
}
@Override
public void removed(Job job, VehicleRoute fromRoute) {}
}
static class UpdateFuturePickupsAtActivityLevel implements ReverseActivityVisitor {
private StateManagerImpl stateManager;
private int futurePicks = 0;
private VehicleRoute route;
public UpdateFuturePickupsAtActivityLevel(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void begin(VehicleRoute route) {
this.route = route;
}
@Override
public void visit(TourActivity act) {
stateManager.putActivityState(act, StateTypes.FUTURE_PICKS, new StateImpl(futurePicks));
if(act instanceof PickupActivity || act instanceof ServiceActivity){
futurePicks += act.getCapacityDemand();
}
assert futurePicks <= route.getVehicle().getCapacity() : "sum of pickups must not be > vehicleCap";
assert futurePicks >= 0 : "sum of pickups must not < 0";
}
@Override
public void finish() {
futurePicks = 0;
route = null;
}
}
static class UpdateOccuredDeliveriesAtActivityLevel implements ActivityVisitor {
private StateManagerImpl stateManager;
private int deliveries = 0;
private VehicleRoute route;
public UpdateOccuredDeliveriesAtActivityLevel(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void begin(VehicleRoute route) {
this.route = route;
}
@Override
public void visit(TourActivity act) {
if(act instanceof DeliveryActivity){
deliveries += Math.abs(act.getCapacityDemand());
}
stateManager.putActivityState(act, StateTypes.PAST_DELIVERIES, new StateImpl(deliveries));
assert deliveries >= 0 : "deliveries < 0";
assert deliveries <= route.getVehicle().getCapacity() : "deliveries > vehicleCap";
}
@Override
public void finish() {
deliveries = 0;
route = null;
}
}
/**
* Updates load at activity level. Note that this assumed that StateTypes.LOAD_AT_DEPOT is already updated, i.e. it starts by setting loadAtDepot to StateTypes.LOAD_AT_DEPOT.
* If StateTypes.LOAD_AT_DEPOT is not set, it starts with 0 load at depot.
*
* @author stefan
*
*/
static class UpdateLoadAtActivityLevel implements ActivityVisitor {
private StateManagerImpl stateManager;
private int currentLoad = 0;
private VehicleRoute route;
public UpdateLoadAtActivityLevel(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void begin(VehicleRoute route) {
currentLoad = (int) stateManager.getRouteState(route, StateTypes.LOAD_AT_DEPOT).toDouble();
this.route = route;
}
@Override
public void visit(TourActivity act) {
currentLoad += act.getCapacityDemand();
stateManager.putActivityState(act, StateTypes.LOAD, new StateImpl(currentLoad));
assert currentLoad <= route.getVehicle().getCapacity() : "currentLoad at activity must not be > vehicleCapacity";
assert currentLoad >= 0 : "currentLoad at act must not be < 0";
}
@Override
public void finish() {
currentLoad = 0;
}
}
static class ResetStateManager implements IterationStartsListener {
private StateManagerImpl stateManager;
public ResetStateManager(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void informIterationStarts(int i, VehicleRoutingProblem problem, Collection<VehicleRoutingProblemSolution> solutions) {
stateManager.clear();
}
}
static interface InsertionStarts {
void insertionStarts(VehicleRoute route);
}
static class UpdateLoadsAtStartAndEndOfRouteWhenInsertionStarts implements InsertionStarts {
private StateManagerImpl stateManager;
public UpdateLoadsAtStartAndEndOfRouteWhenInsertionStarts(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void insertionStarts(VehicleRoute route) {
int loadAtDepot = 0;
int loadAtEnd = 0;
for(Job j : route.getTourActivities().getJobs()){
if(j instanceof Delivery){
loadAtDepot += j.getCapacityDemand();
}
else if(j instanceof Pickup || j instanceof Service){
loadAtEnd += j.getCapacityDemand();
}
}
stateManager.putRouteState(route, StateTypes.LOAD_AT_DEPOT, new StateImpl(loadAtDepot));
stateManager.putRouteState(route, StateTypes.LOAD, new StateImpl(loadAtEnd));
}
}
static class UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted implements JobInsertedListener {
private StateManagerImpl stateManager;
public UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
if(job2insert instanceof Delivery){
int loadAtDepot = (int) stateManager.getRouteState(inRoute, StateTypes.LOAD_AT_DEPOT).toDouble();
// log.info("loadAtDepot="+loadAtDepot);
stateManager.putRouteState(inRoute, StateTypes.LOAD_AT_DEPOT, new StateImpl(loadAtDepot + job2insert.getCapacityDemand()));
}
else if(job2insert instanceof Pickup || job2insert instanceof Service){
int loadAtEnd = (int) stateManager.getRouteState(inRoute, StateTypes.LOAD).toDouble();
// log.info("loadAtEnd="+loadAtEnd);
stateManager.putRouteState(inRoute, StateTypes.LOAD, new StateImpl(loadAtEnd + job2insert.getCapacityDemand()));
}
}
}
static class UpdateRouteStatesOnceTheRouteHasBeenChanged implements InsertionStartsListener, JobInsertedListener {
private RouteActivityVisitor forwardInTimeIterator;
private ReverseRouteActivityVisitor backwardInTimeIterator;
private Collection<InsertionStarts> insertionStartsListeners;
private Collection<JobInsertedListener> jobInsertionListeners;
public UpdateRouteStatesOnceTheRouteHasBeenChanged(VehicleRoutingTransportCosts routingCosts) {
forwardInTimeIterator = new RouteActivityVisitor();
backwardInTimeIterator = new ReverseRouteActivityVisitor();
insertionStartsListeners = new ArrayList<InsertionStarts>();
jobInsertionListeners = new ArrayList<JobInsertedListener>();
}
void addVisitor(ActivityVisitor vis){
forwardInTimeIterator.addActivityVisitor(vis);
}
void addVisitor(ReverseActivityVisitor revVis){
backwardInTimeIterator.addActivityVisitor(revVis);
}
void addInsertionStartsListener(InsertionStarts insertionStartListener){
insertionStartsListeners.add(insertionStartListener);
}
void addJobInsertedListener(JobInsertedListener jobInsertedListener){
jobInsertionListeners.add(jobInsertedListener);
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
for(JobInsertedListener l : jobInsertionListeners){ l.informJobInserted(job2insert, inRoute, additionalCosts, additionalTime); }
forwardInTimeIterator.visit(inRoute);
backwardInTimeIterator.visit(inRoute);
}
@Override
public void informInsertionStarts(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs) {
for(VehicleRoute route : vehicleRoutes){
for(InsertionStarts insertionsStartsHandler : insertionStartsListeners){
insertionsStartsHandler.insertionStarts(route);
}
forwardInTimeIterator.visit(route);
backwardInTimeIterator.visit(route);
}
}
}
}

61
jsprit-core/src/main/java/algorithms/VehicleFleetManager.java
View file

@ -24,65 +24,18 @@ import java.util.Collection;
import basics.route.Vehicle;
interface VehicleFleetManager {
public interface VehicleFleetManager {
static class TypeKey {
public final String type;
public final String locationId;
public TypeKey(String typeId, String locationId) {
super();
this.type = typeId;
this.locationId = locationId;
}
public abstract void lock(Vehicle vehicle);
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((locationId == null) ? 0 : locationId.hashCode());
result = prime * result + ((type == null) ? 0 : type.hashCode());
return result;
}
public abstract void unlock(Vehicle vehicle);
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
TypeKey other = (TypeKey) obj;
if (locationId == null) {
if (other.locationId != null)
return false;
} else if (!locationId.equals(other.locationId))
return false;
if (type == null) {
if (other.type != null)
return false;
} else if (!type.equals(other.type))
return false;
return true;
}
public abstract boolean isLocked(Vehicle vehicle);
}
public abstract void unlockAll();
abstract void lock(Vehicle vehicle);
public abstract Collection<Vehicle> getAvailableVehicles();
abstract void unlock(Vehicle vehicle);
abstract boolean isLocked(Vehicle vehicle);
abstract void unlockAll();
abstract Collection<Vehicle> getAvailableVehicles();
Collection<Vehicle> getAvailableVehicles(String withoutThisType, String locationId);
public Collection<Vehicle> getAvailableVehicles(String withoutThisType, String locationId);
}

7
jsprit-core/src/main/java/algorithms/VehicleFleetManagerFactory.java Normal file
View file

@ -0,0 +1,7 @@
package algorithms;
public interface VehicleFleetManagerFactory {
public VehicleFleetManager createFleetManager();
}

24
jsprit-core/src/main/java/algorithms/VehicleFleetManagerImpl.java
View file

@ -58,11 +58,11 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
static class TypeContainer {
private TypeKey type;
private VehicleTypeKey type;
private ArrayList<Vehicle> vehicleList;
public TypeContainer(TypeKey type) {
public TypeContainer(VehicleTypeKey type) {
super();
this.type = type;
vehicleList = new ArrayList<Vehicle>();
@ -96,9 +96,9 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
private Set<Vehicle> lockedVehicles;
private Map<TypeKey,TypeContainer> typeMapOfAvailableVehicles;
private Map<VehicleTypeKey,TypeContainer> typeMapOfAvailableVehicles;
private Map<TypeKey,Vehicle> penaltyVehicles = new HashMap<VehicleFleetManager.TypeKey, Vehicle>();
private Map<VehicleTypeKey,Vehicle> penaltyVehicles = new HashMap<VehicleTypeKey, Vehicle>();
// private Map<TypeKey,TypeContainer> typeMapOfAvailablePenaltyVehicles;
@ -126,8 +126,8 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
}
private void makeMap() {
typeMapOfAvailableVehicles = new HashMap<TypeKey, TypeContainer>();
penaltyVehicles = new HashMap<VehicleFleetManager.TypeKey, Vehicle>();
typeMapOfAvailableVehicles = new HashMap<VehicleTypeKey, TypeContainer>();
penaltyVehicles = new HashMap<VehicleTypeKey, Vehicle>();
for(Vehicle v : vehicles){
addVehicle(v);
}
@ -139,11 +139,11 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
}
String typeId = v.getType().getTypeId();
if(v.getType() instanceof PenaltyVehicleType){
TypeKey typeKey = new TypeKey(typeId,v.getLocationId());
VehicleTypeKey typeKey = new VehicleTypeKey(typeId,v.getLocationId());
penaltyVehicles.put(typeKey, v);
}
else{
TypeKey typeKey = new TypeKey(v.getType().getTypeId(),v.getLocationId());
VehicleTypeKey typeKey = new VehicleTypeKey(v.getType().getTypeId(),v.getLocationId());
if(!typeMapOfAvailableVehicles.containsKey(typeKey)){
typeMapOfAvailableVehicles.put(typeKey, new TypeContainer(typeKey));
}
@ -154,7 +154,7 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
private void removeVehicle(Vehicle v){
//it might be better to introduce a class PenaltyVehicle
if(!(v.getType() instanceof PenaltyVehicleType)){
TypeKey key = new TypeKey(v.getType().getTypeId(),v.getLocationId());
VehicleTypeKey key = new VehicleTypeKey(v.getType().getTypeId(),v.getLocationId());
if(typeMapOfAvailableVehicles.containsKey(key)){
typeMapOfAvailableVehicles.get(key).remove(v);
}
@ -171,7 +171,7 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
@Override
public Collection<Vehicle> getAvailableVehicles() {
List<Vehicle> vehicles = new ArrayList<Vehicle>();
for(TypeKey key : typeMapOfAvailableVehicles.keySet()){
for(VehicleTypeKey key : typeMapOfAvailableVehicles.keySet()){
if(!typeMapOfAvailableVehicles.get(key).isEmpty()){
vehicles.add(typeMapOfAvailableVehicles.get(key).getVehicle());
}
@ -197,8 +197,8 @@ class VehicleFleetManagerImpl implements VehicleFleetManager {
@Override
public Collection<Vehicle> getAvailableVehicles(String withoutThisType, String withThisLocationId) {
List<Vehicle> vehicles = new ArrayList<Vehicle>();
TypeKey thisKey = new TypeKey(withoutThisType,withThisLocationId);
for(TypeKey key : typeMapOfAvailableVehicles.keySet()){
VehicleTypeKey thisKey = new VehicleTypeKey(withoutThisType,withThisLocationId);
for(VehicleTypeKey key : typeMapOfAvailableVehicles.keySet()){
if(key.equals(thisKey)) continue;
if(!typeMapOfAvailableVehicles.get(key).isEmpty()){
vehicles.add(typeMapOfAvailableVehicles.get(key).getVehicle());

71
jsprit-core/src/main/java/algorithms/VehicleRoutingAlgorithms.java
View file

@ -35,13 +35,6 @@ import org.apache.commons.configuration.HierarchicalConfiguration;
import org.apache.commons.configuration.XMLConfiguration;
import org.apache.log4j.Logger;
import algorithms.HardConstraints.ConstraintManager;
import algorithms.HardConstraints.HardTimeWindowActivityLevelConstraint;
import algorithms.StateUpdates.UpdateActivityTimes;
import algorithms.StateUpdates.UpdateCostsAtAllLevels;
import algorithms.StateUpdates.UpdateEarliestStartTimeWindowAtActLocations;
import algorithms.StateUpdates.UpdateLatestOperationStartTimeAtActLocations;
import algorithms.StateUpdates.UpdateStates;
import algorithms.VehicleRoutingAlgorithms.TypedMap.AbstractKey;
import algorithms.VehicleRoutingAlgorithms.TypedMap.AcceptorKey;
import algorithms.VehicleRoutingAlgorithms.TypedMap.InsertionStrategyKey;
@ -52,9 +45,22 @@ import algorithms.acceptors.AcceptNewIfBetterThanWorst;
import algorithms.acceptors.AcceptNewRemoveFirst;
import algorithms.acceptors.SchrimpfAcceptance;
import algorithms.acceptors.SolutionAcceptor;
import algorithms.constraints.ConstraintManager;
import algorithms.constraints.HardPickupAndDeliveryActivityLevelConstraint;
import algorithms.constraints.HardPickupAndDeliveryBackhaulActivityLevelConstraint;
import algorithms.constraints.HardPickupAndDeliveryLoadConstraint;
import algorithms.constraints.HardTimeWindowActivityLevelConstraint;
import algorithms.selectors.SelectBest;
import algorithms.selectors.SelectRandomly;
import algorithms.selectors.SolutionSelector;
import algorithms.states.InitializeLoadsAtStartAndEndOfRouteWhenInsertionStarts;
import algorithms.states.UpdateActivityTimes;
import algorithms.states.UpdateCostsAtAllLevels;
import algorithms.states.UpdateFuturePickupsAtActivityLevel;
import algorithms.states.UpdateLatestOperationStartTimeAtActLocations;
import algorithms.states.UpdateLoadAtActivityLevel;
import algorithms.states.UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted;
import algorithms.states.UpdateOccuredDeliveriesAtActivityLevel;
import basics.VehicleRoutingAlgorithm;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblem.Constraint;
@ -451,16 +457,16 @@ public class VehicleRoutingAlgorithms {
*/
//constraint manager
ConstraintManager constraintManager = new ConstraintManager();
constraintManager.addConstraint(new HardConstraints.HardTimeWindowActivityLevelConstraint(stateManager, vrp.getTransportCosts()));
constraintManager.addConstraint(new HardTimeWindowActivityLevelConstraint(stateManager, vrp.getTransportCosts()));
if(vrp.getProblemConstraints().contains(Constraint.DELIVERIES_FIRST)){
constraintManager.addConstraint(new HardConstraints.HardPickupAndDeliveryBackhaulActivityLevelConstraint(stateManager));
constraintManager.addConstraint(new HardPickupAndDeliveryBackhaulActivityLevelConstraint(stateManager));
}
else{
constraintManager.addConstraint(new HardConstraints.HardPickupAndDeliveryActivityLevelConstraint(stateManager));
constraintManager.addConstraint(new HardPickupAndDeliveryActivityLevelConstraint(stateManager));
}
constraintManager.addConstraint(new HardConstraints.HardPickupAndDeliveryLoadConstraint(stateManager));
constraintManager.addConstraint(new HardPickupAndDeliveryLoadConstraint(stateManager));
//construct initial solution creator
AlgorithmStartsListener createInitialSolution = createInitialSolution(config,vrp,vehicleFleetManager,stateManager,algorithmListeners,definedClasses,executorService,nuOfThreads,constraintManager);
@ -498,23 +504,38 @@ public class VehicleRoutingAlgorithms {
*/
//reset stateManager
algorithmListeners.add(new PrioritizedVRAListener(Priority.LOW, new StateUpdates.ResetStateManager(stateManager)));
// algorithmListeners.add(new PrioritizedVRAListener(Priority.LOW, new StateUpdates.ResetStateManager(stateManager)));
//update states
// metaAlgorithm.getSearchStrategyManager().addSearchStrategyModuleListener(new UpdateStates(stateManager, vrp.getTransportCosts(), vrp.getActivityCosts()));
StateUpdates.UpdateRouteStatesOnceTheRouteHasBeenChanged routeChangedListener = new StateUpdates.UpdateRouteStatesOnceTheRouteHasBeenChanged(vrp.getTransportCosts());
// UpdateRouteStatesOnceTheRouteHasBeenChanged routeChangedListener = new StateUpdates.UpdateRouteStatesOnceTheRouteHasBeenChanged(vrp.getTransportCosts());
//
// routeChangedListener.addInsertionStartsListener(new InitializeLoadsAtStartAndEndOfRouteWhenInsertionStarts.UpdateLoadsAtStartAndEndOfRouteWhenInsertionStarts(stateManager));
// routeChangedListener.addJobInsertedListener(new UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted(stateManager));
//
// routeChangedListener.addVisitor(new StateUpdates.UpdateActivityTimes(vrp.getTransportCosts()));
// routeChangedListener.addVisitor(new StateUpdates.UpdateLoadAtActivityLevel(stateManager));
// routeChangedListener.addVisitor(new StateUpdates.UpdateCostsAtAllLevels(vrp.getActivityCosts(), vrp.getTransportCosts(), stateManager));
//
// routeChangedListener.addVisitor(new StateUpdates.UpdateOccuredDeliveriesAtActivityLevel(stateManager));
// routeChangedListener.addVisitor(new StateUpdates.UpdateLatestOperationStartTimeAtActLocations(stateManager, vrp.getTransportCosts()));
// routeChangedListener.addVisitor(new StateUpdates.UpdateFuturePickupsAtActivityLevel(stateManager));
routeChangedListener.addInsertionStartsListener(new StateUpdates.UpdateLoadsAtStartAndEndOfRouteWhenInsertionStarts(stateManager));
routeChangedListener.addJobInsertedListener(new StateUpdates.UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted(stateManager));
stateManager.addListener(new InitializeLoadsAtStartAndEndOfRouteWhenInsertionStarts(stateManager));
stateManager.addListener(new UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted(stateManager));
stateManager.addActivityVisitor(new UpdateActivityTimes(vrp.getTransportCosts()));
stateManager.addActivityVisitor(new UpdateLoadAtActivityLevel(stateManager));
routeChangedListener.addVisitor(new StateUpdates.UpdateActivityTimes(vrp.getTransportCosts()));
routeChangedListener.addVisitor(new StateUpdates.UpdateLoadAtActivityLevel(stateManager));
routeChangedListener.addVisitor(new StateUpdates.UpdateCostsAtAllLevels(vrp.getActivityCosts(), vrp.getTransportCosts(), stateManager));
stateManager.addActivityVisitor(new UpdateCostsAtAllLevels(vrp.getActivityCosts(), vrp.getTransportCosts(), stateManager));
routeChangedListener.addVisitor(new StateUpdates.UpdateOccuredDeliveriesAtActivityLevel(stateManager));
routeChangedListener.addVisitor(new StateUpdates.UpdateLatestOperationStartTimeAtActLocations(stateManager, vrp.getTransportCosts()));
routeChangedListener.addVisitor(new StateUpdates.UpdateFuturePickupsAtActivityLevel(stateManager));
stateManager.addActivityVisitor(new UpdateOccuredDeliveriesAtActivityLevel(stateManager));
stateManager.addActivityVisitor(new UpdateLatestOperationStartTimeAtActLocations(stateManager, vrp.getTransportCosts()));
stateManager.addActivityVisitor(new UpdateFuturePickupsAtActivityLevel(stateManager));
metaAlgorithm.getSearchStrategyManager().addSearchStrategyModuleListener(stateManager);
metaAlgorithm.getAlgorithmListeners().addListener(stateManager);
metaAlgorithm.getSearchStrategyManager().addSearchStrategyModuleListener(routeChangedListener);
metaAlgorithm.getSearchStrategyManager().addSearchStrategyModuleListener(new RemoveEmptyVehicles(vehicleFleetManager));
metaAlgorithm.getSearchStrategyManager().addSearchStrategyModuleListener(new ResetAndIniFleetManager(vehicleFleetManager));
metaAlgorithm.getSearchStrategyManager().addSearchStrategyModuleListener(new VehicleSwitched(vehicleFleetManager));
@ -637,9 +658,9 @@ public class VehicleRoutingAlgorithms {
@Override
public void informAlgorithmStarts(VehicleRoutingProblem problem, VehicleRoutingAlgorithm algorithm, Collection<VehicleRoutingProblemSolution> solutions) {
CreateInitialSolution createInitialSolution = new CreateInitialSolution(finalInsertionStrategy);
BestInsertionInitialSolutionFactory createInitialSolution = new BestInsertionInitialSolutionFactory(finalInsertionStrategy);
createInitialSolution.setGenerateAsMuchAsRoutesAsVehiclesExist(false);
VehicleRoutingProblemSolution vrpSol = createInitialSolution.createInitialSolution(vrp);
VehicleRoutingProblemSolution vrpSol = createInitialSolution.createSolution(vrp);
solutions.add(vrpSol);
}
@ -834,6 +855,8 @@ public class VehicleRoutingAlgorithms {
InsertionStrategy insertion = InsertionFactory.createInsertion(vrp, moduleConfig, vehicleFleetManager, routeStates, algorithmListeners, executorService, nuOfThreads, constraintManager);
return insertion;
}
}

48
jsprit-core/src/main/java/algorithms/VehicleTypeKey.java Normal file
View file

@ -0,0 +1,48 @@
package algorithms;
class VehicleTypeKey {
public final String type;
public final String locationId;
VehicleTypeKey(String typeId, String locationId) {
super();
this.type = typeId;
this.locationId = locationId;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((locationId == null) ? 0 : locationId.hashCode());
result = prime * result + ((type == null) ? 0 : type.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
VehicleTypeKey other = (VehicleTypeKey) obj;
if (locationId == null) {
if (other.locationId != null)
return false;
} else if (!locationId.equals(other.locationId))
return false;
if (type == null) {
if (other.type != null)
return false;
} else if (!type.equals(other.type))
return false;
return true;
}
}

30
jsprit-core/src/main/java/algorithms/constraints/ConstraintManager.java Normal file
View file

@ -0,0 +1,30 @@
package algorithms.constraints;
import algorithms.InsertionContext;
import basics.route.TourActivity;
public class ConstraintManager implements HardActivityLevelConstraint, HardRouteLevelConstraint{
private HardActivityLevelConstraintManager actLevelConstraintManager = new HardActivityLevelConstraintManager();
private HardRouteLevelConstraintManager routeLevelConstraintManager = new HardRouteLevelConstraintManager();
public void addConstraint(HardActivityLevelConstraint actLevelConstraint){
actLevelConstraintManager.addConstraint(actLevelConstraint);
}
public void addConstraint(HardRouteLevelConstraint routeLevelConstraint){
routeLevelConstraintManager.addConstraint(routeLevelConstraint);
}
@Override
public boolean fulfilled(InsertionContext insertionContext) {
return routeLevelConstraintManager.fulfilled(insertionContext);
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct,TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
return actLevelConstraintManager.fulfilled(iFacts, prevAct, newAct, nextAct, prevActDepTime);
}
}

10
jsprit-core/src/main/java/algorithms/constraints/HardActivityLevelConstraint.java Normal file
View file

@ -0,0 +1,10 @@
package algorithms.constraints;
import algorithms.InsertionContext;
import basics.route.TourActivity;
public interface HardActivityLevelConstraint {
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime);
}

27
jsprit-core/src/main/java/algorithms/constraints/HardActivityLevelConstraintManager.java Normal file
View file

@ -0,0 +1,27 @@
package algorithms.constraints;
import java.util.ArrayList;
import java.util.Collection;
import algorithms.InsertionContext;
import basics.route.TourActivity;
class HardActivityLevelConstraintManager implements HardActivityLevelConstraint {
private Collection<HardActivityLevelConstraint> hardConstraints = new ArrayList<HardActivityLevelConstraint>();
public void addConstraint(HardActivityLevelConstraint constraint){
hardConstraints.add(constraint);
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
for(HardActivityLevelConstraint constraint : hardConstraints){
if(!constraint.fulfilled(iFacts, prevAct, newAct, nextAct, prevActDepTime)){
return false;
}
}
return true;
}
}

44
jsprit-core/src/main/java/algorithms/constraints/HardConstraints.java Normal file
View file

@ -0,0 +1,44 @@
/*******************************************************************************
* Copyright (C) 2013 Stefan Schroeder
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributors:
* Stefan Schroeder - initial API and implementation
******************************************************************************/
package algorithms.constraints;
/**
* collection of hard constrainters bot at activity and at route level.
*
* <p>HardPickupAndDeliveryLoadConstraint requires LOAD_AT_DEPOT and LOAD (i.e. load at end) at route-level
*
* <p>HardTimeWindowConstraint requires LATEST_OPERATION_START_TIME
*
* <p>HardPickupAndDeliveryConstraint requires LOAD_AT_DEPOT and LOAD at route-level and FUTURE_PICKS and PAST_DELIVIERS on activity-level
*
* <p>HardPickupAndDeliveryBackhaulConstraint requires LOAD_AT_DEPOT and LOAD at route-level and FUTURE_PICKS and PAST_DELIVIERS on activity-level
*
* @author stefan
*
*/
class HardConstraints {
}

26
jsprit-core/src/main/java/algorithms/constraints/HardLoadConstraint.java Normal file
View file

@ -0,0 +1,26 @@
package algorithms.constraints;
import algorithms.InsertionContext;
import algorithms.StateManager;
import algorithms.StateTypes;
import basics.Service;
public class HardLoadConstraint implements HardRouteLevelConstraint{
private StateManager states;
public HardLoadConstraint(StateManager states) {
super();
this.states = states;
}
@Override
public boolean fulfilled(InsertionContext insertionContext) {
int currentLoad = (int) states.getRouteState(insertionContext.getRoute(), StateTypes.LOAD).toDouble();
Service service = (Service) insertionContext.getJob();
if(currentLoad + service.getCapacityDemand() > insertionContext.getNewVehicle().getCapacity()){
return false;
}
return true;
}
}

50
jsprit-core/src/main/java/algorithms/constraints/HardPickupAndDeliveryActivityLevelConstraint.java Normal file
View file

@ -0,0 +1,50 @@
package algorithms.constraints;
import algorithms.InsertionContext;
import algorithms.StateManager;
import algorithms.StateTypes;
import basics.route.DeliveryActivity;
import basics.route.PickupActivity;
import basics.route.ServiceActivity;
import basics.route.Start;
import basics.route.TourActivity;
public class HardPickupAndDeliveryActivityLevelConstraint implements HardActivityLevelConstraint {
private StateManager stateManager;
public HardPickupAndDeliveryActivityLevelConstraint(StateManager stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
int loadAtPrevAct;
int futurePicks;
int pastDeliveries;
if(prevAct instanceof Start){
loadAtPrevAct = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD_AT_DEPOT).toDouble();
futurePicks = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD).toDouble();
pastDeliveries = 0;
}
else{
loadAtPrevAct = (int) stateManager.getActivityState(prevAct, StateTypes.LOAD).toDouble();
futurePicks = (int) stateManager.getActivityState(prevAct, StateTypes.FUTURE_PICKS).toDouble();
pastDeliveries = (int) stateManager.getActivityState(prevAct, StateTypes.PAST_DELIVERIES).toDouble();
}
if(newAct instanceof PickupActivity || newAct instanceof ServiceActivity){
if(loadAtPrevAct + newAct.getCapacityDemand() + futurePicks > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
if(newAct instanceof DeliveryActivity){
if(loadAtPrevAct + Math.abs(newAct.getCapacityDemand()) + pastDeliveries > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
return true;
}
}

54
jsprit-core/src/main/java/algorithms/constraints/HardPickupAndDeliveryBackhaulActivityLevelConstraint.java Normal file
View file

@ -0,0 +1,54 @@
package algorithms.constraints;
import algorithms.InsertionContext;
import algorithms.StateManager;
import algorithms.StateTypes;
import basics.route.DeliveryActivity;
import basics.route.PickupActivity;
import basics.route.ServiceActivity;
import basics.route.Start;
import basics.route.TourActivity;
public class HardPickupAndDeliveryBackhaulActivityLevelConstraint implements HardActivityLevelConstraint {
private StateManager stateManager;
public HardPickupAndDeliveryBackhaulActivityLevelConstraint(StateManager stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
if(newAct instanceof PickupActivity && nextAct instanceof DeliveryActivity){ return false; }
if(newAct instanceof ServiceActivity && nextAct instanceof DeliveryActivity){ return false; }
if(newAct instanceof DeliveryActivity && prevAct instanceof PickupActivity){ return false; }
if(newAct instanceof DeliveryActivity && prevAct instanceof ServiceActivity){ return false; }
int loadAtPrevAct;
int futurePicks;
int pastDeliveries;
if(prevAct instanceof Start){
loadAtPrevAct = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD_AT_DEPOT).toDouble();
futurePicks = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD).toDouble();
pastDeliveries = 0;
}
else{
loadAtPrevAct = (int) stateManager.getActivityState(prevAct, StateTypes.LOAD).toDouble();
futurePicks = (int) stateManager.getActivityState(prevAct, StateTypes.FUTURE_PICKS).toDouble();
pastDeliveries = (int) stateManager.getActivityState(prevAct, StateTypes.PAST_DELIVERIES).toDouble();
}
if(newAct instanceof PickupActivity || newAct instanceof ServiceActivity){
if(loadAtPrevAct + newAct.getCapacityDemand() + futurePicks > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
if(newAct instanceof DeliveryActivity){
if(loadAtPrevAct + Math.abs(newAct.getCapacityDemand()) + pastDeliveries > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
return true;
}
}

42
jsprit-core/src/main/java/algorithms/constraints/HardPickupAndDeliveryLoadConstraint.java Normal file
View file

@ -0,0 +1,42 @@
package algorithms.constraints;
import algorithms.InsertionContext;
import algorithms.StateManager;
import algorithms.StateTypes;
import basics.Delivery;
import basics.Pickup;
import basics.Service;
/**
* lsjdfjsdlfjsa
*
* @author stefan
*
*/
public class HardPickupAndDeliveryLoadConstraint implements HardRouteLevelConstraint {
private StateManager stateManager;
public HardPickupAndDeliveryLoadConstraint(StateManager stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public boolean fulfilled(InsertionContext insertionContext) {
if(insertionContext.getJob() instanceof Delivery){
int loadAtDepot = (int) stateManager.getRouteState(insertionContext.getRoute(), StateTypes.LOAD_AT_DEPOT).toDouble();
if(loadAtDepot + insertionContext.getJob().getCapacityDemand() > insertionContext.getNewVehicle().getCapacity()){
return false;
}
}
else if(insertionContext.getJob() instanceof Pickup || insertionContext.getJob() instanceof Service){
int loadAtEnd = (int) stateManager.getRouteState(insertionContext.getRoute(), StateTypes.LOAD).toDouble();
if(loadAtEnd + insertionContext.getJob().getCapacityDemand() > insertionContext.getNewVehicle().getCapacity()){
return false;
}
}
return true;
}
}

9
jsprit-core/src/main/java/algorithms/constraints/HardRouteLevelConstraint.java Normal file
View file

@ -0,0 +1,9 @@
package algorithms.constraints;
import algorithms.InsertionContext;
public interface HardRouteLevelConstraint {
public boolean fulfilled(InsertionContext insertionContext);
}

26
jsprit-core/src/main/java/algorithms/constraints/HardRouteLevelConstraintManager.java Normal file
View file

@ -0,0 +1,26 @@
package algorithms.constraints;
import java.util.ArrayList;
import java.util.Collection;
import algorithms.InsertionContext;
class HardRouteLevelConstraintManager implements HardRouteLevelConstraint {
private Collection<HardRouteLevelConstraint> hardConstraints = new ArrayList<HardRouteLevelConstraint>();
public void addConstraint(HardRouteLevelConstraint constraint){
hardConstraints.add(constraint);
}
@Override
public boolean fulfilled(InsertionContext insertionContext) {
for(HardRouteLevelConstraint constraint : hardConstraints){
if(!constraint.fulfilled(insertionContext)){
return false;
}
}
return true;
}
}

49
jsprit-core/src/main/java/algorithms/constraints/HardTimeWindowActivityLevelConstraint.java Normal file
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package algorithms.constraints;
import org.apache.log4j.Logger;
import algorithms.CalculationUtils;
import algorithms.InsertionContext;
import algorithms.StateManager;
import algorithms.StateTypes;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.TourActivity;
/**
* ljsljslfjs
* @author stefan
*
*/
public class HardTimeWindowActivityLevelConstraint implements HardActivityLevelConstraint {
private static Logger log = Logger.getLogger(HardTimeWindowActivityLevelConstraint.class);
private StateManager states;
private VehicleRoutingTransportCosts routingCosts;
public HardTimeWindowActivityLevelConstraint(StateManager states, VehicleRoutingTransportCosts routingCosts) {
super();
this.states = states;
this.routingCosts = routingCosts;
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
// log.info("check insertion of " + newAct + " between " + prevAct + " and " + nextAct + ". prevActDepTime=" + prevActDepTime);
double arrTimeAtNewAct = prevActDepTime + routingCosts.getTransportTime(prevAct.getLocationId(), newAct.getLocationId(), prevActDepTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
double latestArrTimeAtNewAct = states.getActivityState(newAct, StateTypes.LATEST_OPERATION_START_TIME).toDouble();
if(arrTimeAtNewAct > latestArrTimeAtNewAct){
return false;
}
// log.info(newAct + " arrTime=" + arrTimeAtNewAct);
double endTimeAtNewAct = CalculationUtils.getActivityEndTime(arrTimeAtNewAct, newAct);
double arrTimeAtNextAct = endTimeAtNewAct + routingCosts.getTransportTime(newAct.getLocationId(), nextAct.getLocationId(), endTimeAtNewAct, iFacts.getNewDriver(), iFacts.getNewVehicle());
double latestArrTimeAtNextAct = states.getActivityState(nextAct, StateTypes.LATEST_OPERATION_START_TIME).toDouble();
if(arrTimeAtNextAct > latestArrTimeAtNextAct){
return false;
}
// log.info(nextAct + " arrTime=" + arrTimeAtNextAct);
return true;
}
}

3
jsprit-core/src/main/java/algorithms/ActivityTimeTracker.java → jsprit-core/src/main/java/algorithms/states/ActivityTimeTracker.java
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@ -1,5 +1,6 @@
package algorithms;
package algorithms.states;
import algorithms.ActivityVisitor;
import basics.costs.ForwardTransportTime;
import basics.route.Driver;
import basics.route.TourActivity;

64
jsprit-core/src/main/java/algorithms/states/InitializeLoadsAtStartAndEndOfRouteWhenInsertionStarts.java Normal file
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package algorithms.states;
import java.util.Collection;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.Delivery;
import basics.Job;
import basics.Pickup;
import basics.Service;
import basics.algo.InsertionStartsListener;
import basics.route.VehicleRoute;
/**
* Initializes the load of each route/vehicle at start- and end-location before insertion starts.
*
* <p>StateTypes.LOAD_AT_DEPOT and StateTypes.LOAD are modified for each route
* <p>These states can be retrieved by <br>
* stateManager.getRouteState(route, StateTypes.LOAD_AT_DEPOT) for LOAD_AT_DEPOT and <br>
* stateManager.getRouteState(route, StateTypes.LOAD) for LOAD (i.e. load at end)
*
* @param stateManager
*/
public class InitializeLoadsAtStartAndEndOfRouteWhenInsertionStarts implements InsertionStartsListener {
private StateManagerImpl stateManager;
/**
* Initializes the load of each route/vehicle at start- and end-location before insertion starts.
*
* <p>StateTypes.LOAD_AT_DEPOT and StateTypes.LOAD are modified for each route
* <p>These states can be retrieved by <br>
* stateManager.getRouteState(route, StateTypes.LOAD_AT_DEPOT) for LOAD_AT_DEPOT and <br>
* stateManager.getRouteState(route, StateTypes.LOAD) for LOAD (i.e. load at end)
*
* @param stateManager
*/
public InitializeLoadsAtStartAndEndOfRouteWhenInsertionStarts(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
void insertionStarts(VehicleRoute route) {
int loadAtDepot = 0;
int loadAtEnd = 0;
for(Job j : route.getTourActivities().getJobs()){
if(j instanceof Delivery){
loadAtDepot += j.getCapacityDemand();
}
else if(j instanceof Pickup || j instanceof Service){
loadAtEnd += j.getCapacityDemand();
}
}
stateManager.putRouteState(route, StateTypes.LOAD_AT_DEPOT, new StateImpl(loadAtDepot));
stateManager.putRouteState(route, StateTypes.LOAD, new StateImpl(loadAtEnd));
}
@Override
public void informInsertionStarts(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs) {
for(VehicleRoute route : vehicleRoutes){ insertionStarts(route); }
}
}

162
jsprit-core/src/main/java/algorithms/states/StateUpdates.java Normal file
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/*******************************************************************************
* Copyright (C) 2013 Stefan Schroeder
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributors:
* Stefan Schroeder - initial API and implementation
******************************************************************************/
package algorithms.states;
import java.util.ArrayList;
import java.util.Collection;
import algorithms.ActivityVisitor;
import algorithms.ReverseActivityVisitor;
import algorithms.ReverseRouteActivityVisitor;
import algorithms.RouteActivityVisitor;
import algorithms.StateManagerImpl;
import basics.Job;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblemSolution;
import basics.algo.InsertionStartsListener;
import basics.algo.IterationStartsListener;
import basics.algo.JobInsertedListener;
import basics.algo.RuinListener;
import basics.costs.VehicleRoutingActivityCosts;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.VehicleRoute;
public class StateUpdates {
public static class UpdateStates implements JobInsertedListener, RuinListener{
private RouteActivityVisitor routeActivityVisitor;
private ReverseRouteActivityVisitor revRouteActivityVisitor;
public UpdateStates(StateManagerImpl states, VehicleRoutingTransportCosts routingCosts, VehicleRoutingActivityCosts activityCosts) {
routeActivityVisitor = new RouteActivityVisitor();
routeActivityVisitor.addActivityVisitor(new UpdateActivityTimes(routingCosts));
routeActivityVisitor.addActivityVisitor(new UpdateCostsAtAllLevels(activityCosts, routingCosts, states));
routeActivityVisitor.addActivityVisitor(new UpdateLoadAtAllLevels(states));
revRouteActivityVisitor = new ReverseRouteActivityVisitor();
revRouteActivityVisitor.addActivityVisitor(new UpdateLatestOperationStartTimeAtActLocations(states, routingCosts));
}
public void update(VehicleRoute route){
routeActivityVisitor.visit(route);
revRouteActivityVisitor.visit(route);
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
routeActivityVisitor.visit(inRoute);
revRouteActivityVisitor.visit(inRoute);
}
@Override
public void ruinStarts(Collection<VehicleRoute> routes) {}
@Override
public void ruinEnds(Collection<VehicleRoute> routes,Collection<Job> unassignedJobs) {
for(VehicleRoute route : routes) {
routeActivityVisitor.visit(route);
revRouteActivityVisitor.visit(route);
}
}
@Override
public void removed(Job job, VehicleRoute fromRoute) {}
}
static class ResetStateManager implements IterationStartsListener {
private StateManagerImpl stateManager;
public ResetStateManager(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void informIterationStarts(int i, VehicleRoutingProblem problem, Collection<VehicleRoutingProblemSolution> solutions) {
stateManager.clear();
}
}
static interface InsertionStarts {
void insertionStarts(VehicleRoute route);
}
static class UpdateRouteStatesOnceTheRouteHasBeenChanged implements InsertionStartsListener, JobInsertedListener {
private RouteActivityVisitor forwardInTimeIterator;
private ReverseRouteActivityVisitor backwardInTimeIterator;
private Collection<InsertionStarts> insertionStartsListeners;
private Collection<JobInsertedListener> jobInsertionListeners;
public UpdateRouteStatesOnceTheRouteHasBeenChanged(VehicleRoutingTransportCosts routingCosts) {
forwardInTimeIterator = new RouteActivityVisitor();
backwardInTimeIterator = new ReverseRouteActivityVisitor();
insertionStartsListeners = new ArrayList<InsertionStarts>();
jobInsertionListeners = new ArrayList<JobInsertedListener>();
}
void addVisitor(ActivityVisitor vis){
forwardInTimeIterator.addActivityVisitor(vis);
}
void addVisitor(ReverseActivityVisitor revVis){
backwardInTimeIterator.addActivityVisitor(revVis);
}
void addInsertionStartsListener(InsertionStarts insertionStartListener){
insertionStartsListeners.add(insertionStartListener);
}
void addJobInsertedListener(JobInsertedListener jobInsertedListener){
jobInsertionListeners.add(jobInsertedListener);
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
for(JobInsertedListener l : jobInsertionListeners){ l.informJobInserted(job2insert, inRoute, additionalCosts, additionalTime); }
forwardInTimeIterator.visit(inRoute);
backwardInTimeIterator.visit(inRoute);
}
@Override
public void informInsertionStarts(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs) {
for(VehicleRoute route : vehicleRoutes){
for(InsertionStarts insertionsStartsHandler : insertionStartsListeners){
insertionsStartsHandler.insertionStarts(route);
}
forwardInTimeIterator.visit(route);
backwardInTimeIterator.visit(route);
}
}
}
}

63
jsprit-core/src/main/java/algorithms/states/UpdateActivityTimes.java Normal file
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package algorithms.states;
import org.apache.log4j.Logger;
import algorithms.ActivityVisitor;
import basics.costs.ForwardTransportTime;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
/**
* Updates arrival and end times of activities.
*
* <p>Note that this modifies arrTime and endTime of each activity in a route.
*
* @author stefan
*
*/
public class UpdateActivityTimes implements ActivityVisitor{
private Logger log = Logger.getLogger(UpdateActivityTimes.class);
private ActivityTimeTracker timeTracker;
private VehicleRoute route;
/**
* Updates arrival and end times of activities.
*
* <p>Note that this modifies arrTime and endTime of each activity in a route.
*
* <p>ArrTimes and EndTimes can be retrieved by <br>
* <code>activity.getArrTime()</code> and
* <code>activity.getEndTime()</code>
*
* @author stefan
*
*/
public UpdateActivityTimes(ForwardTransportTime transportTime) {
super();
timeTracker = new ActivityTimeTracker(transportTime);
}
@Override
public void begin(VehicleRoute route) {
timeTracker.begin(route);
this.route = route;
route.getStart().setEndTime(timeTracker.getActEndTime());
}
@Override
public void visit(TourActivity activity) {
timeTracker.visit(activity);
activity.setArrTime(timeTracker.getActArrTime());
activity.setEndTime(timeTracker.getActEndTime());
}
@Override
public void finish() {
timeTracker.finish();
route.getEnd().setArrTime(timeTracker.getActArrTime());
}
}

118
jsprit-core/src/main/java/algorithms/states/UpdateCostsAtAllLevels.java Normal file
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package algorithms.states;
import org.apache.log4j.Logger;
import algorithms.ActivityVisitor;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.costs.ForwardTransportCost;
import basics.costs.VehicleRoutingActivityCosts;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
/**
* Updates total costs (i.e. transport and activity costs) at route and activity level.
*
* <p>Thus it modifies <code>stateManager.getRouteState(route, StateTypes.COSTS)</code> and <br>
* <code>stateManager.getActivityState(activity, StateTypes.COSTS)</code>
*
*
* @param activityCost
* @param transportCost
* @param states
*/
public class UpdateCostsAtAllLevels implements ActivityVisitor{
private static Logger log = Logger.getLogger(UpdateCostsAtAllLevels.class);
private VehicleRoutingActivityCosts activityCost;
private ForwardTransportCost transportCost;
private StateManagerImpl states;
private double totalOperationCost = 0.0;
private VehicleRoute vehicleRoute = null;
private TourActivity prevAct = null;
private double startTimeAtPrevAct = 0.0;
private ActivityTimeTracker timeTracker;
/**
* Updates total costs (i.e. transport and activity costs) at route and activity level.
*
* <p>Thus it modifies <code>stateManager.getRouteState(route, StateTypes.COSTS)</code> and <br>
* <code>stateManager.getActivityState(activity, StateTypes.COSTS)</code>
*
*
* @param activityCost
* @param transportCost
* @param states
*/
public UpdateCostsAtAllLevels(VehicleRoutingActivityCosts activityCost, VehicleRoutingTransportCosts transportCost, StateManagerImpl states) {
super();
this.activityCost = activityCost;
this.transportCost = transportCost;
this.states = states;
timeTracker = new ActivityTimeTracker(transportCost);
}
@Override
public void begin(VehicleRoute route) {
vehicleRoute = route;
vehicleRoute.getVehicleRouteCostCalculator().reset();
timeTracker.begin(route);
prevAct = route.getStart();
startTimeAtPrevAct = timeTracker.getActEndTime();
}
@Override
public void visit(TourActivity act) {
timeTracker.visit(act);
double transportCost = this.transportCost.getTransportCost(prevAct.getLocationId(), act.getLocationId(), startTimeAtPrevAct, vehicleRoute.getDriver(), vehicleRoute.getVehicle());
double actCost = activityCost.getActivityCost(act, timeTracker.getActArrTime(), vehicleRoute.getDriver(), vehicleRoute.getVehicle());
vehicleRoute.getVehicleRouteCostCalculator().addTransportCost(transportCost);
vehicleRoute.getVehicleRouteCostCalculator().addActivityCost(actCost);
totalOperationCost += transportCost;
totalOperationCost += actCost;
states.putActivityState(act, StateTypes.COSTS, new StateImpl(totalOperationCost));
prevAct = act;
startTimeAtPrevAct = timeTracker.getActEndTime();
}
@Override
public void finish() {
timeTracker.finish();
double transportCost = this.transportCost.getTransportCost(prevAct.getLocationId(), vehicleRoute.getEnd().getLocationId(), startTimeAtPrevAct, vehicleRoute.getDriver(), vehicleRoute.getVehicle());
double actCost = activityCost.getActivityCost(vehicleRoute.getEnd(), timeTracker.getActEndTime(), vehicleRoute.getDriver(), vehicleRoute.getVehicle());
vehicleRoute.getVehicleRouteCostCalculator().addTransportCost(transportCost);
vehicleRoute.getVehicleRouteCostCalculator().addActivityCost(actCost);
totalOperationCost += transportCost;
totalOperationCost += actCost;
states.putRouteState(vehicleRoute, StateTypes.COSTS, new StateImpl(totalOperationCost));
//this is rather strange and likely to change
vehicleRoute.getVehicleRouteCostCalculator().price(vehicleRoute.getDriver());
vehicleRoute.getVehicleRouteCostCalculator().price(vehicleRoute.getVehicle());
vehicleRoute.getVehicleRouteCostCalculator().finish();
startTimeAtPrevAct = 0.0;
prevAct = null;
vehicleRoute = null;
totalOperationCost = 0.0;
}
}

65
jsprit-core/src/main/java/algorithms/states/UpdateCostsAtRouteLevel.java Normal file
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package algorithms.states;
import java.util.Collection;
import algorithms.RouteActivityVisitor;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.Job;
import basics.algo.InsertionEndsListener;
import basics.algo.InsertionStartsListener;
import basics.algo.JobInsertedListener;
import basics.costs.VehicleRoutingActivityCosts;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.VehicleRoute;
public class UpdateCostsAtRouteLevel implements JobInsertedListener, InsertionStartsListener, InsertionEndsListener{
private StateManagerImpl states;
private VehicleRoutingTransportCosts tpCosts;
private VehicleRoutingActivityCosts actCosts;
public UpdateCostsAtRouteLevel(StateManagerImpl states, VehicleRoutingTransportCosts tpCosts, VehicleRoutingActivityCosts actCosts) {
super();
this.states = states;
this.tpCosts = tpCosts;
this.actCosts = actCosts;
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
// inRoute.getVehicleRouteCostCalculator().addTransportCost(additionalCosts);
double oldCosts = states.getRouteState(inRoute, StateTypes.COSTS).toDouble();
oldCosts += additionalCosts;
states.putRouteState(inRoute, StateTypes.COSTS, new StateImpl(oldCosts));
}
@Override
public void informInsertionStarts(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs) {
RouteActivityVisitor forwardInTime = new RouteActivityVisitor();
forwardInTime.addActivityVisitor(new UpdateCostsAtAllLevels(actCosts, tpCosts, states));
for(VehicleRoute route : vehicleRoutes){
forwardInTime.visit(route);
}
}
@Override
public void informInsertionEnds(Collection<VehicleRoute> vehicleRoutes) {
// IterateRouteForwardInTime forwardInTime = new IterateRouteForwardInTime(tpCosts);
// forwardInTime.addListener(new UpdateCostsAtAllLevels(actCosts, tpCosts, states));
for(VehicleRoute route : vehicleRoutes){
if(route.isEmpty()) continue;
route.getVehicleRouteCostCalculator().reset();
route.getVehicleRouteCostCalculator().addOtherCost(states.getRouteState(route, StateTypes.COSTS).toDouble());
route.getVehicleRouteCostCalculator().price(route.getVehicle());
// forwardInTime.iterate(route);
}
}
}

38
jsprit-core/src/main/java/algorithms/states/UpdateEarliestStartTimeWindowAtActLocations.java Normal file
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package algorithms.states;
import algorithms.ActivityVisitor;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
public class UpdateEarliestStartTimeWindowAtActLocations implements ActivityVisitor{
private StateManagerImpl states;
private ActivityTimeTracker timeTracker;
public UpdateEarliestStartTimeWindowAtActLocations(StateManagerImpl states, VehicleRoutingTransportCosts transportCosts) {
super();
this.states = states;
timeTracker = new ActivityTimeTracker(transportCosts);
}
@Override
public void begin(VehicleRoute route) {
timeTracker.begin(route);
}
@Override
public void visit(TourActivity activity) {
timeTracker.visit(activity);
states.putActivityState(activity, StateTypes.EARLIEST_OPERATION_START_TIME, new StateImpl(Math.max(timeTracker.getActArrTime(), activity.getTheoreticalEarliestOperationStartTime())));
}
@Override
public void finish() {}
}

42
jsprit-core/src/main/java/algorithms/states/UpdateFuturePickupsAtActivityLevel.java Normal file
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@ -0,0 +1,42 @@
package algorithms.states;
import algorithms.ReverseActivityVisitor;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.route.PickupActivity;
import basics.route.ServiceActivity;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
public class UpdateFuturePickupsAtActivityLevel implements ReverseActivityVisitor {
private StateManagerImpl stateManager;
private int futurePicks = 0;
private VehicleRoute route;
public UpdateFuturePickupsAtActivityLevel(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void begin(VehicleRoute route) {
this.route = route;
}
@Override
public void visit(TourActivity act) {
stateManager.putActivityState(act, StateTypes.FUTURE_PICKS, new StateImpl(futurePicks));
if(act instanceof PickupActivity || act instanceof ServiceActivity){
futurePicks += act.getCapacityDemand();
}
assert futurePicks <= route.getVehicle().getCapacity() : "sum of pickups must not be > vehicleCap";
assert futurePicks >= 0 : "sum of pickups must not < 0";
}
@Override
public void finish() {
futurePicks = 0;
route = null;
}
}

53
jsprit-core/src/main/java/algorithms/states/UpdateLatestOperationStartTimeAtActLocations.java Normal file
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package algorithms.states;
import org.apache.log4j.Logger;
import algorithms.ReverseActivityVisitor;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
public class UpdateLatestOperationStartTimeAtActLocations implements ReverseActivityVisitor{
private static Logger log = Logger.getLogger(UpdateLatestOperationStartTimeAtActLocations.class);
private StateManagerImpl states;
private VehicleRoute route;
private VehicleRoutingTransportCosts transportCosts;
private double latestArrTimeAtPrevAct;
private TourActivity prevAct;
public UpdateLatestOperationStartTimeAtActLocations(StateManagerImpl states, VehicleRoutingTransportCosts tpCosts) {
super();
this.states = states;
this.transportCosts = tpCosts;
}
@Override
public void begin(VehicleRoute route) {
this.route = route;
latestArrTimeAtPrevAct = route.getEnd().getTheoreticalLatestOperationStartTime();
prevAct = route.getEnd();
}
@Override
public void visit(TourActivity activity) {
double potentialLatestArrivalTimeAtCurrAct = latestArrTimeAtPrevAct - transportCosts.getBackwardTransportTime(activity.getLocationId(), prevAct.getLocationId(), latestArrTimeAtPrevAct, route.getDriver(),route.getVehicle()) - activity.getOperationTime();
double latestArrivalTime = Math.min(activity.getTheoreticalLatestOperationStartTime(), potentialLatestArrivalTimeAtCurrAct);
states.putActivityState(activity, StateTypes.LATEST_OPERATION_START_TIME, new StateImpl(latestArrivalTime));
latestArrTimeAtPrevAct = latestArrivalTime;
prevAct = activity;
}
@Override
public void finish() {}
}

68
jsprit-core/src/main/java/algorithms/states/UpdateLoadAtActivityLevel.java Normal file
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package algorithms.states;
import algorithms.ActivityVisitor;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
/**
* Updates load at activity level.
*
* <p>Note that this assumes that StateTypes.LOAD_AT_DEPOT is already updated, i.e. it starts by setting loadAtDepot to StateTypes.LOAD_AT_DEPOT.
* If StateTypes.LOAD_AT_DEPOT is not set, it starts with 0 load at depot.
*
* <p>Thus it DEPENDS on StateTypes.LOAD_AT_DEPOT
*
* @author stefan
*
*/
public class UpdateLoadAtActivityLevel implements ActivityVisitor {
private StateManagerImpl stateManager;
private int currentLoad = 0;
private VehicleRoute route;
/**
* Updates load at activity level.
*
* <p>Note that this assumes that StateTypes.LOAD_AT_DEPOT is already updated, i.e. it starts by setting loadAtDepot to StateTypes.LOAD_AT_DEPOT.
* If StateTypes.LOAD_AT_DEPOT is not set, it starts with 0 load at depot.
*
* <p>Thus it DEPENDS on StateTypes.LOAD_AT_DEPOT
*
* <p>If you want to update StateTypes.LOAD_AT_DEPOT see {@link InitializeLoadsAtStartAndEndOfRouteWhenInsertionStarts}, {@link UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted}
*
* <p>The loads can be retrieved by <br>
* <code>stateManager.getActivityState(activity,StateTypes.LOAD);</code>
*
*
*
* @see {@link InitializeLoadsAtStartAndEndOfRouteWhenInsertionStarts}, {@link UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted}
* @author stefan
*
*/
public UpdateLoadAtActivityLevel(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void begin(VehicleRoute route) {
currentLoad = (int) stateManager.getRouteState(route, StateTypes.LOAD_AT_DEPOT).toDouble();
this.route = route;
}
@Override
public void visit(TourActivity act) {
currentLoad += act.getCapacityDemand();
stateManager.putActivityState(act, StateTypes.LOAD, new StateImpl(currentLoad));
assert currentLoad <= route.getVehicle().getCapacity() : "currentLoad at activity must not be > vehicleCapacity";
assert currentLoad >= 0 : "currentLoad at act must not be < 0";
}
@Override
public void finish() {
currentLoad = 0;
}
}

41
jsprit-core/src/main/java/algorithms/states/UpdateLoadAtAllLevels.java Normal file
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package algorithms.states;
import algorithms.ActivityVisitor;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
public class UpdateLoadAtAllLevels implements ActivityVisitor{
private double load = 0.0;
private StateManagerImpl states;
private VehicleRoute vehicleRoute;
public UpdateLoadAtAllLevels(StateManagerImpl states) {
super();
this.states = states;
}
@Override
public void begin(VehicleRoute route) {
vehicleRoute = route;
}
@Override
public void visit(TourActivity activity) {
load += (double)activity.getCapacityDemand();
states.putActivityState(activity, StateTypes.LOAD, new StateImpl(load));
}
@Override
public void finish() {
states.putRouteState(vehicleRoute, StateTypes.LOAD, new StateImpl(load));
load=0;
vehicleRoute = null;
}
}

56
jsprit-core/src/main/java/algorithms/states/UpdateLoadAtRouteLevel.java Normal file
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package algorithms.states;
import java.util.Collection;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.Job;
import basics.Service;
import basics.algo.InsertionStartsListener;
import basics.algo.JobInsertedListener;
import basics.route.VehicleRoute;
/**
* Updates load at route level, i.e. modifies StateTypes.LOAD for each route.
*
* @author stefan
*
*/
public class UpdateLoadAtRouteLevel implements JobInsertedListener, InsertionStartsListener{
private StateManagerImpl states;
/**
* Updates load at route level, i.e. modifies StateTypes.LOAD for each route.
*
* @author stefan
*
*/
public UpdateLoadAtRouteLevel(StateManagerImpl states) {
super();
this.states = states;
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
if(!(job2insert instanceof Service)){
return;
}
double oldLoad = states.getRouteState(inRoute, StateTypes.LOAD).toDouble();
states.putRouteState(inRoute, StateTypes.LOAD, new StateImpl(oldLoad + job2insert.getCapacityDemand()));
}
@Override
public void informInsertionStarts(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs) {
for(VehicleRoute route : vehicleRoutes){
int load = 0;
for(Job j : route.getTourActivities().getJobs()){
load += j.getCapacityDemand();
}
states.putRouteState(route, StateTypes.LOAD, new StateImpl(load));
}
}
}

54
jsprit-core/src/main/java/algorithms/states/UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted.java Normal file
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@ -0,0 +1,54 @@
package algorithms.states;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.Delivery;
import basics.Job;
import basics.Pickup;
import basics.Service;
import basics.algo.JobInsertedListener;
import basics.route.VehicleRoute;
/**
* Updates loads at start and end of a route if a job has been inserted in that route.
*
* <p>These states can be retrieved by <br>
* stateManager.getRouteState(route, StateTypes.LOAD_AT_DEPOT) for LOAD_AT_DEPOT and <br>
* stateManager.getRouteState(route, StateTypes.LOAD) for LOAD (i.e. load at end)
*
* @param stateManager
*/
public class UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted implements JobInsertedListener {
private StateManagerImpl stateManager;
/**
* Updates loads at start and end of a route if a job has been inserted in that route.
*
* <p>These states can be retrieved by <br>
* stateManager.getRouteState(route, StateTypes.LOAD_AT_DEPOT) for LOAD_AT_DEPOT and <br>
* stateManager.getRouteState(route, StateTypes.LOAD) for LOAD (i.e. load at end)
*
* @param stateManager
*/
public UpdateLoadsAtStartAndEndOfRouteWhenJobHasBeenInserted(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void informJobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime) {
if(job2insert instanceof Delivery){
int loadAtDepot = (int) stateManager.getRouteState(inRoute, StateTypes.LOAD_AT_DEPOT).toDouble();
// log.info("loadAtDepot="+loadAtDepot);
stateManager.putRouteState(inRoute, StateTypes.LOAD_AT_DEPOT, new StateImpl(loadAtDepot + job2insert.getCapacityDemand()));
}
else if(job2insert instanceof Pickup || job2insert instanceof Service){
int loadAtEnd = (int) stateManager.getRouteState(inRoute, StateTypes.LOAD).toDouble();
// log.info("loadAtEnd="+loadAtEnd);
stateManager.putRouteState(inRoute, StateTypes.LOAD, new StateImpl(loadAtEnd + job2insert.getCapacityDemand()));
}
}
}

41
jsprit-core/src/main/java/algorithms/states/UpdateOccuredDeliveriesAtActivityLevel.java Normal file
View file

@ -0,0 +1,41 @@
package algorithms.states;
import algorithms.ActivityVisitor;
import algorithms.StateManagerImpl;
import algorithms.StateManagerImpl.StateImpl;
import algorithms.StateTypes;
import basics.route.DeliveryActivity;
import basics.route.TourActivity;
import basics.route.VehicleRoute;
public class UpdateOccuredDeliveriesAtActivityLevel implements ActivityVisitor {
private StateManagerImpl stateManager;
private int deliveries = 0;
private VehicleRoute route;
public UpdateOccuredDeliveriesAtActivityLevel(StateManagerImpl stateManager) {
super();
this.stateManager = stateManager;
}
@Override
public void begin(VehicleRoute route) {
this.route = route;
}
@Override
public void visit(TourActivity act) {
if(act instanceof DeliveryActivity){
deliveries += Math.abs(act.getCapacityDemand());
}
stateManager.putActivityState(act, StateTypes.PAST_DELIVERIES, new StateImpl(deliveries));
assert deliveries >= 0 : "deliveries < 0";
assert deliveries <= route.getVehicle().getCapacity() : "deliveries > vehicleCap";
}
@Override
public void finish() {
deliveries = 0;
route = null;
}
}

42
jsprit-core/src/main/java/basics/algo/InsertionListeners.java Normal file
View file

@ -0,0 +1,42 @@
package basics.algo;
import java.util.ArrayList;
import java.util.Collection;
import basics.Job;
import basics.route.VehicleRoute;
public class InsertionListeners {
private Collection<InsertionStartsListener> startListeners = new ArrayList<InsertionStartsListener>();
private Collection<JobInsertedListener> jobInsertedListeners = new ArrayList<JobInsertedListener>();
private Collection<InsertionEndsListener> endListeners = new ArrayList<InsertionEndsListener>();
public void addListener(InsertionListener insertionListener){
if(insertionListener instanceof InsertionStartsListener) startListeners.add((InsertionStartsListener) insertionListener);
else if(insertionListener instanceof JobInsertedListener) jobInsertedListeners.add((JobInsertedListener) insertionListener);
else if(insertionListener instanceof InsertionEndsListener) endListeners.add((InsertionEndsListener) insertionListener);
else throw new IllegalStateException("cannot add this type of insertionListener");
}
public void removeListener(InsertionListener insertionListener){
if(insertionListener instanceof InsertionStartsListener) startListeners.remove((InsertionStartsListener) insertionListener);
else if(insertionListener instanceof JobInsertedListener) jobInsertedListeners.remove((JobInsertedListener) insertionListener);
else if(insertionListener instanceof InsertionEndsListener) endListeners.remove((InsertionEndsListener) insertionListener);
else throw new IllegalStateException("cannot remove this type of insertionListener");
}
public void insertionStarts(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs){
for(InsertionStartsListener l : startListeners) l.informInsertionStarts(vehicleRoutes, unassignedJobs);
}
public void jobInserted(Job job2insert, VehicleRoute inRoute, double additionalCosts, double additionalTime){
for(JobInsertedListener l : jobInsertedListeners) l.informJobInserted(job2insert, inRoute, additionalCosts, additionalTime);
}
public void insertionEnds(Collection<VehicleRoute> vehicleRoutes){
for(InsertionEndsListener l : endListeners){ l.informInsertionEnds(vehicleRoutes); }
}
}

1
jsprit-core/src/main/java/basics/algo/InsertionStartsListener.java
View file

@ -29,4 +29,5 @@ import basics.route.VehicleRoute;
public interface InsertionStartsListener extends InsertionListener {
public void informInsertionStarts(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs);
}

17
jsprit-core/src/main/java/algorithms/RuinListeners.java → jsprit-core/src/main/java/basics/algo/RuinListeners.java
View file

@ -18,41 +18,40 @@
* Contributors:
* Stefan Schroeder - initial API and implementation
******************************************************************************/
package algorithms;
package basics.algo;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import basics.Job;
import basics.algo.RuinListener;
import basics.route.VehicleRoute;
class RuinListeners {
public class RuinListeners {
private Collection<RuinListener> ruinListeners = new ArrayList<RuinListener>();
void ruinStarts(Collection<VehicleRoute> routes){
public void ruinStarts(Collection<VehicleRoute> routes){
for(RuinListener l : ruinListeners) l.ruinStarts(routes);
}
void ruinEnds(Collection<VehicleRoute> routes, Collection<Job> unassignedJobs){
public void ruinEnds(Collection<VehicleRoute> routes, Collection<Job> unassignedJobs){
for(RuinListener l : ruinListeners) l.ruinEnds(routes, unassignedJobs);
}
void removed(Job job, VehicleRoute fromRoute){
public void removed(Job job, VehicleRoute fromRoute){
for(RuinListener l : ruinListeners) l.removed(job, fromRoute);
}
void addListener(RuinListener ruinListener){
public void addListener(RuinListener ruinListener){
ruinListeners.add(ruinListener);
}
void removeListener(RuinListener ruinListener){
public void removeListener(RuinListener ruinListener){
ruinListeners.remove(ruinListener);
}
Collection<RuinListener> getListeners(){
public Collection<RuinListener> getListeners(){
return Collections.unmodifiableCollection(ruinListeners);
}
}

11
jsprit-core/src/main/java/util/Solutions.java
View file

@ -26,6 +26,7 @@ import basics.VehicleRoutingProblemSolution;
public class Solutions {
@Deprecated
public static VehicleRoutingProblemSolution getBest(Collection<VehicleRoutingProblemSolution> solutions){
VehicleRoutingProblemSolution best = null;
for(VehicleRoutingProblemSolution s : solutions){
@ -34,5 +35,15 @@ public class Solutions {
}
return best;
}
public static VehicleRoutingProblemSolution bestOf(Collection<VehicleRoutingProblemSolution> solutions){
VehicleRoutingProblemSolution best = null;
for(VehicleRoutingProblemSolution s : solutions){
if(best == null) best = s;
else if(s.getCost() < best.getCost()) best = s;
}
return best;
}
}