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Code Issues Releases Wiki Activity

add bad job list

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This commit is contained in:
oblonski 2014-08-09 23:32:03 +02:00
parent c3155a0938
commit 322d1d7d13
3 changed files with 32 additions and 67 deletions
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2
jsprit-core/src/main/java/jsprit/core/algorithm/VariablePlusFixedSolutionCostCalculatorFactory.java
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@ -52,7 +52,7 @@ public class VariablePlusFixedSolutionCostCalculatorFactory {
c += stateManager.getRouteState(r, InternalStates.COSTS, Double.class); c += stateManager.getRouteState(r, InternalStates.COSTS, Double.class);
c += getFixedCosts(r.getVehicle()); c += getFixedCosts(r.getVehicle());
} }
c += solution.getBadJobs().size() * c * .05; c += solution.getBadJobs().size() * c * .1;
return c; return c;
} }

48
jsprit-core/src/main/java/jsprit/core/algorithm/recreate/BestInsertionConcurrent.java
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@ -85,12 +85,8 @@ final class BestInsertionConcurrent implements InsertionStrategy{
private JobInsertionCostsCalculator bestInsertionCostCalculator; private JobInsertionCostsCalculator bestInsertionCostCalculator;
private boolean minVehiclesFirst = false;
private int nuOfBatches; private int nuOfBatches;
private ExecutorService executor;
private ExecutorCompletionService<Insertion> completionService; private ExecutorCompletionService<Insertion> completionService;
public void setRandom(Random random) { public void setRandom(Random random) {
@ -100,11 +96,10 @@ final class BestInsertionConcurrent implements InsertionStrategy{
public BestInsertionConcurrent(JobInsertionCostsCalculator jobInsertionCalculator, ExecutorService executorService, int nuOfBatches, VehicleRoutingProblem vehicleRoutingProblem) { public BestInsertionConcurrent(JobInsertionCostsCalculator jobInsertionCalculator, ExecutorService executorService, int nuOfBatches, VehicleRoutingProblem vehicleRoutingProblem) {
super(); super();
this.insertionsListeners = new InsertionListeners(); this.insertionsListeners = new InsertionListeners();
this.executor = executorService;
this.nuOfBatches = nuOfBatches; this.nuOfBatches = nuOfBatches;
inserter = new Inserter(insertionsListeners, vehicleRoutingProblem); inserter = new Inserter(insertionsListeners, vehicleRoutingProblem);
bestInsertionCostCalculator = jobInsertionCalculator; bestInsertionCostCalculator = jobInsertionCalculator;
completionService = new ExecutorCompletionService<Insertion>(executor); completionService = new ExecutorCompletionService<Insertion>(executorService);
logger.info("initialise " + this); logger.info("initialise " + this);
} }
@ -116,16 +111,13 @@ final class BestInsertionConcurrent implements InsertionStrategy{
@Override @Override
public Collection<Job> insertJobs(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs) { public Collection<Job> insertJobs(Collection<VehicleRoute> vehicleRoutes, Collection<Job> unassignedJobs) {
insertionsListeners.informInsertionStarts(vehicleRoutes,unassignedJobs); insertionsListeners.informInsertionStarts(vehicleRoutes,unassignedJobs);
List<Job> badJobs = new ArrayList<Job>(unassignedJobs.size());
List<Job> unassignedJobList = new ArrayList<Job>(unassignedJobs); List<Job> unassignedJobList = new ArrayList<Job>(unassignedJobs);
Collections.shuffle(unassignedJobList, random); Collections.shuffle(unassignedJobList, random);
List<Batch> batches = distributeRoutes(vehicleRoutes,nuOfBatches); List<Batch> batches = distributeRoutes(vehicleRoutes,nuOfBatches);
for(final Job unassignedJob : unassignedJobList){ for(final Job unassignedJob : unassignedJobList){
Insertion bestInsertion = null; Insertion bestInsertion = null;
double bestInsertionCost = Double.MAX_VALUE; double bestInsertionCost = Double.MAX_VALUE;
for(final Batch batch : batches){ for(final Batch batch : batches){
completionService.submit(new Callable<Insertion>() { completionService.submit(new Callable<Insertion>() {
@ -135,9 +127,7 @@ final class BestInsertionConcurrent implements InsertionStrategy{
} }
}); });
} }
try { try {
for (int i = 0; i < batches.size(); i++) { for (int i = 0; i < batches.size(); i++) {
Future<Insertion> futureIData = completionService.take(); Future<Insertion> futureIData = completionService.take();
@ -148,8 +138,7 @@ final class BestInsertionConcurrent implements InsertionStrategy{
bestInsertionCost = insertion.getInsertionData().getInsertionCost(); bestInsertionCost = insertion.getInsertionData().getInsertionCost();
} }
} }
} } catch(InterruptedException e){
catch(InterruptedException e){
Thread.currentThread().interrupt(); Thread.currentThread().interrupt();
} }
catch (ExecutionException e) { catch (ExecutionException e) {
@ -157,43 +146,18 @@ final class BestInsertionConcurrent implements InsertionStrategy{
logger.error(e.getCause().toString()); logger.error(e.getCause().toString());
System.exit(1); System.exit(1);
} }
if(!minVehiclesFirst){
VehicleRoute newRoute = VehicleRoute.emptyRoute(); VehicleRoute newRoute = VehicleRoute.emptyRoute();
InsertionData newIData = bestInsertionCostCalculator.getInsertionData(newRoute, unassignedJob, NO_NEW_VEHICLE_YET, NO_NEW_DEPARTURE_TIME_YET, NO_NEW_DRIVER_YET, bestInsertionCost); InsertionData newIData = bestInsertionCostCalculator.getInsertionData(newRoute, unassignedJob, NO_NEW_VEHICLE_YET, NO_NEW_DEPARTURE_TIME_YET, NO_NEW_DRIVER_YET, bestInsertionCost);
if(newIData.getInsertionCost() < bestInsertionCost){ if(newIData.getInsertionCost() < bestInsertionCost){
bestInsertion = new Insertion(newRoute,newIData); bestInsertion = new Insertion(newRoute,newIData);
bestInsertionCost = newIData.getInsertionCost();
vehicleRoutes.add(newRoute); vehicleRoutes.add(newRoute);
batches.get(random.nextInt(batches.size())).routes.add(newRoute); batches.get(random.nextInt(batches.size())).routes.add(newRoute);
} }
} if(bestInsertion == null) badJobs.add(unassignedJob);
else inserter.insertJob(unassignedJob, bestInsertion.getInsertionData(), bestInsertion.getRoute());
if(bestInsertion == null){
VehicleRoute newRoute = VehicleRoute.emptyRoute();
InsertionData bestI = bestInsertionCostCalculator.getInsertionData(newRoute, unassignedJob, NO_NEW_VEHICLE_YET, NO_NEW_DEPARTURE_TIME_YET, NO_NEW_DRIVER_YET, Double.MAX_VALUE);
if(bestI instanceof InsertionData.NoInsertionFound){
throw new IllegalStateException(getErrorMsg(unassignedJob));
}
else{
bestInsertion = new Insertion(newRoute,bestI);
vehicleRoutes.add(newRoute);
}
}
// logger.info("insert " + unassignedJob + " pickup@" + bestInsertion.getInsertionData().getPickupInsertionIndex() + " delivery@" + bestInsertion.getInsertionData().getDeliveryInsertionIndex());
inserter.insertJob(unassignedJob, bestInsertion.getInsertionData(), bestInsertion.getRoute());
} }
insertionsListeners.informInsertionEndsListeners(vehicleRoutes); insertionsListeners.informInsertionEndsListeners(vehicleRoutes);
return null; return badJobs;
}
private String getErrorMsg(Job unassignedJob) {
return "given the vehicles, could not insert job\n" +
"\t" + unassignedJob +
"\n\tthis might have the following reasons:\n" +
"\t- no vehicle has the capacity to transport the job [check whether there is at least one vehicle that is capable to transport the job]\n" +
"\t- the time-window cannot be met, even in a commuter tour the time-window is missed [check whether it is possible to reach the time-window on the shortest path or make hard time-windows soft]\n" +
"\t- if you deal with finite vehicles, and the available vehicles are already fully employed, no vehicle can be found anymore to transport the job [add penalty-vehicles]";
} }
@Override @Override

1
jsprit-examples/src/main/java/jsprit/examples/BicycleMessenger.java
View file

@ -269,6 +269,7 @@ public class BicycleMessenger {
//create your algorithm //create your algorithm
VehicleRoutingAlgorithmBuilder vraBuilder = new VehicleRoutingAlgorithmBuilder(bicycleMessengerProblem,"input/algorithmConfig_open.xml"); VehicleRoutingAlgorithmBuilder vraBuilder = new VehicleRoutingAlgorithmBuilder(bicycleMessengerProblem,"input/algorithmConfig_open.xml");
// vraBuilder.setNuOfThreads(2);
vraBuilder.addDefaultCostCalculators(); vraBuilder.addDefaultCostCalculators();
vraBuilder.setStateAndConstraintManager(stateManager, constraintManager); vraBuilder.setStateAndConstraintManager(stateManager, constraintManager);
VehicleRoutingAlgorithm algorithm = vraBuilder.build(); VehicleRoutingAlgorithm algorithm = vraBuilder.build();