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Code Issues Releases Wiki Activity

add driver breaks

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This commit is contained in:
oblonski 2015-08-05 15:08:16 +02:00
parent 2503a96237
commit 28dcb2fb56
9 changed files with 100 additions and 25 deletions
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7
jsprit-core/src/main/java/jsprit/core/algorithm/InsertionInitialSolutionFactory.java
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@ -25,6 +25,7 @@ import jsprit.core.problem.solution.InitialSolutionFactory;
import jsprit.core.problem.solution.SolutionCostCalculator;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
import jsprit.core.problem.solution.route.VehicleRoute;
import jsprit.core.problem.vehicle.Vehicle;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
@ -60,7 +61,11 @@ public final class InsertionInitialSolutionFactory implements InitialSolutionFac
}
private List<Job> getUnassignedJobs(VehicleRoutingProblem vrp) {
return new ArrayList<Job>(vrp.getJobs().values());
ArrayList<Job> jobs = new ArrayList<Job>(vrp.getJobs().values());
for(Vehicle v : vrp.getVehicles()){
if(v.getBreak() != null) jobs.add(v.getBreak());
}
return jobs;
}
}

3
jsprit-core/src/main/java/jsprit/core/algorithm/recreate/BreakInsertionCalculator.java
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@ -95,6 +95,7 @@ final class BreakInsertionCalculator implements JobInsertionCostsCalculator{
public InsertionData getInsertionData(final VehicleRoute currentRoute, final Job jobToInsert, final Vehicle newVehicle, double newVehicleDepartureTime, final Driver newDriver, final double bestKnownCosts) {
Break breakToInsert = (Break) jobToInsert;
if(newVehicle.getBreak() == null || newVehicle.getBreak() != breakToInsert) return InsertionData.createEmptyInsertionData();
if(currentRoute.isEmpty()) return InsertionData.createEmptyInsertionData();
JobInsertionContext insertionContext = new JobInsertionContext(currentRoute, jobToInsert, newVehicle, newDriver, newVehicleDepartureTime);
int insertionIndex = InsertionData.NO_INDEX;
@ -160,11 +161,11 @@ final class BreakInsertionCalculator implements JobInsertionCostsCalculator{
} else if (status.equals(ConstraintsStatus.NOT_FULFILLED)) {
breakThis = false;
}
}
double nextActArrTime = prevActStartTime + transportCosts.getTransportTime(prevAct.getLocation(), nextAct.getLocation(), prevActStartTime, newDriver, newVehicle);
prevActStartTime = CalculationUtils.getActivityEndTime(nextActArrTime, nextAct);
prevAct = nextAct;
actIndex++;
}
if(breakThis) break;
}
if(insertionIndex == InsertionData.NO_INDEX) {

8
jsprit-core/src/main/java/jsprit/core/algorithm/recreate/InsertBreakListener.java
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@ -1,12 +1,16 @@
package jsprit.core.algorithm.recreate;
import jsprit.core.problem.solution.route.VehicleRoute;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
/**
* Created by schroeder on 19/05/15.
*/
class InsertBreakListener implements EventListener {
private static final Logger logger = LogManager.getLogger();
@Override
public void inform(Event event) {
if(event instanceof InsertBreak){
@ -20,7 +24,9 @@ class InsertBreakListener implements EventListener {
if(!vehicleRoute.isEmpty()){
if(vehicleRoute.getVehicle() != ((InsertBreak) event).getNewVehicle()){
if(vehicleRoute.getVehicle().getBreak() != null){
vehicleRoute.getTourActivities().removeJob(vehicleRoute.getVehicle().getBreak());
boolean removed = vehicleRoute.getTourActivities().removeJob(vehicleRoute.getVehicle().getBreak());
if(removed)
logger.trace("remove old break " + vehicleRoute.getVehicle().getBreak());
}
}
}

3
jsprit-core/src/main/java/jsprit/core/algorithm/recreate/LocalActivityInsertionCostsCalculator.java
View file

@ -66,6 +66,7 @@ class LocalActivityInsertionCostsCalculator implements ActivityInsertionCostsCal
double newAct_endTime = CalculationUtils.getActivityEndTime(newAct_arrTime, newAct);
double act_costs_newAct = activityCosts.getActivityCost(newAct, newAct_arrTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
// if(newAct instanceof BreakActivity) act_costs_newAct = 0.;
if(isEnd(nextAct) && !toDepot(iFacts.getNewVehicle())) return tp_costs_prevAct_newAct;
@ -74,6 +75,7 @@ class LocalActivityInsertionCostsCalculator implements ActivityInsertionCostsCal
double nextAct_arrTime = newAct_endTime + tp_time_newAct_nextAct;
double endTime_nextAct_new = CalculationUtils.getActivityEndTime(nextAct_arrTime, nextAct);
double act_costs_nextAct = activityCosts.getActivityCost(nextAct, nextAct_arrTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
// if(nextAct instanceof BreakActivity) act_costs_nextAct = 0;
double totalCosts = tp_costs_prevAct_newAct + tp_costs_newAct_nextAct + solutionCompletenessRatio * activityCostsWeight * (act_costs_newAct + act_costs_nextAct);
@ -87,6 +89,7 @@ class LocalActivityInsertionCostsCalculator implements ActivityInsertionCostsCal
double arrTime_nextAct = depTimeAtPrevAct + routingCosts.getTransportTime(prevAct.getLocation(), nextAct.getLocation(), prevAct.getEndTime(), iFacts.getRoute().getDriver(), iFacts.getRoute().getVehicle());
double endTime_nextAct_old = CalculationUtils.getActivityEndTime(arrTime_nextAct,nextAct);
double actCost_nextAct = activityCosts.getActivityCost(nextAct, arrTime_nextAct, iFacts.getRoute().getDriver(), iFacts.getRoute().getVehicle());
// if(nextAct instanceof BreakActivity) actCost_nextAct = 0;
double endTimeDelay_nextAct = Math.max(0, endTime_nextAct_new - endTime_nextAct_old);
Double futureWaiting = stateManager.getActivityState(nextAct, iFacts.getRoute().getVehicle(), InternalStates.FUTURE_WAITING, Double.class);

18
jsprit-core/src/main/java/jsprit/core/algorithm/recreate/SwitchVehicleListener.java
View file

@ -1,15 +1,33 @@
package jsprit.core.algorithm.recreate;
import jsprit.core.problem.job.Break;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
/**
* Created by schroeder on 19/05/15.
*/
class SwitchVehicleListener implements EventListener{
private static final Logger logger = LogManager.getLogger();
@Override
public void inform(Event event) {
if(event instanceof SwitchVehicle){
SwitchVehicle switchVehicle = (SwitchVehicle) event;
if(vehiclesDifferent((SwitchVehicle) event)) {
logger.trace("switch vehicle (" + ((SwitchVehicle) event).getRoute().getVehicle().getId() + " to " + ((SwitchVehicle) event).getVehicle().getId() + ")");
Break aBreak = ((SwitchVehicle) event).getRoute().getVehicle().getBreak();
if (aBreak != null) {
boolean removed = ((SwitchVehicle) event).getRoute().getTourActivities().removeJob(aBreak);
if (removed) logger.trace("remove " + aBreak.getId());
}
}
switchVehicle.getRoute().setVehicleAndDepartureTime(switchVehicle.getVehicle(),((SwitchVehicle) event).getDepartureTime());
}
}
private boolean vehiclesDifferent(SwitchVehicle event) {
return !event.getRoute().getVehicle().getId().equals(event.getVehicle().getId());
}
}

5
jsprit-core/src/main/java/jsprit/core/algorithm/ruin/RuinBreaks.java
View file

@ -4,6 +4,8 @@ import jsprit.core.algorithm.ruin.listener.RuinListener;
import jsprit.core.problem.job.Break;
import jsprit.core.problem.job.Job;
import jsprit.core.problem.solution.route.VehicleRoute;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import java.util.Collection;
@ -12,6 +14,8 @@ import java.util.Collection;
*/
public class RuinBreaks implements RuinListener {
private final static Logger logger = LogManager.getLogger();
@Override
public void ruinStarts(Collection<VehicleRoute> routes) {}
@ -21,6 +25,7 @@ public class RuinBreaks implements RuinListener {
Break aBreak = r.getVehicle().getBreak();
if(aBreak != null){
r.getTourActivities().removeJob(aBreak);
logger.trace("ruin: " + aBreak.getId());
unassignedJobs.add(aBreak);
}
}

2
jsprit-core/src/main/java/jsprit/core/algorithm/state/UpdateFutureWaitingTimes.java
View file

@ -52,7 +52,9 @@ public class UpdateFutureWaitingTimes implements ReverseActivityVisitor, StateUp
@Override
public void visit(TourActivity activity) {
states.putInternalTypedActivityState(activity,route.getVehicle(),InternalStates.FUTURE_WAITING,futureWaiting);
// if(!(activity instanceof BreakActivity)) {
futureWaiting += Math.max(activity.getTheoreticalEarliestOperationStartTime() - activity.getArrTime(), 0);
// }
}
@Override

11
jsprit-examples/src/main/java/jsprit/examples/BreakExample.java
View file

@ -47,19 +47,22 @@ public class BreakExample {
* get a vehicle type-builder and build a type with the typeId "vehicleType" and one capacity dimension, i.e. weight, and capacity dimension value of 2
*/
final int WEIGHT_INDEX = 0;
VehicleTypeImpl.Builder vehicleTypeBuilder = VehicleTypeImpl.Builder.newInstance("vehicleType").addCapacityDimension(WEIGHT_INDEX, 4);
VehicleTypeImpl.Builder vehicleTypeBuilder = VehicleTypeImpl.Builder.newInstance("vehicleType")
.addCapacityDimension(WEIGHT_INDEX, 2).setCostPerWaitingTime(1.);
VehicleType vehicleType = vehicleTypeBuilder.build();
/*
* get a vehicle-builder and build a vehicle located at (10,10) with type "vehicleType"
*/
Builder vehicleBuilder = Builder.newInstance("vehicle");
Builder vehicleBuilder = Builder.newInstance("v1");
vehicleBuilder.setStartLocation(Location.newInstance(10, 10));
Break myFirstBreak = (Break) Break.Builder.newInstance("myFirstBreak").setTimeWindow(TimeWindow.newInstance(30, 50)).setServiceTime(10).build();
Break myFirstBreak = (Break) Break.Builder.newInstance("myFirstBreak").setTimeWindow(TimeWindow.newInstance(10, 15)).setServiceTime(100).build();
vehicleBuilder.setBreak(myFirstBreak);
vehicleBuilder.setType(vehicleType);
VehicleImpl vehicle = vehicleBuilder.build();
VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setStartLocation(Location.newInstance(0, 10)).setType(vehicleType)
.setBreak((Break) Break.Builder.newInstance("mySecondBreak").setTimeWindow(TimeWindow.newInstance(5,10)).setServiceTime(10).build()).build();
/*
* build services at the required locations, each with a capacity-demand of 1.
*/
@ -72,7 +75,7 @@ public class BreakExample {
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
vrpBuilder.addVehicle(vehicle);
vrpBuilder.addJob(service1).addJob(service2).addJob(service3).addJob(service4);
vrpBuilder.addJob(service1).addJob(service2).addJob(service3).addJob(service4).addVehicle(v2);
vrpBuilder.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE);
VehicleRoutingProblem problem = vrpBuilder.build();

58
jsprit-examples/src/main/java/jsprit/examples/VariableStartAndWaitingTimeExample.java
View file

@ -4,6 +4,7 @@ import jsprit.analysis.toolbox.AlgorithmSearchProgressChartListener;
import jsprit.analysis.toolbox.Plotter;
import jsprit.core.algorithm.VehicleRoutingAlgorithm;
import jsprit.core.algorithm.box.Jsprit;
import jsprit.core.algorithm.ruin.RuinBreaks;
import jsprit.core.algorithm.state.StateManager;
import jsprit.core.algorithm.state.UpdateFutureWaitingTimes;
import jsprit.core.analysis.SolutionAnalyser;
@ -11,6 +12,7 @@ import jsprit.core.problem.Location;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.constraint.ConstraintManager;
import jsprit.core.problem.cost.TransportDistance;
import jsprit.core.problem.job.Break;
import jsprit.core.problem.job.Service;
import jsprit.core.problem.solution.SolutionCostCalculator;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
@ -36,17 +38,37 @@ public class VariableStartAndWaitingTimeExample {
public static void main(String[] args) {
VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("type").setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
VehicleTypeImpl type1 = VehicleTypeImpl.Builder.newInstance("type1").setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("type")
.addCapacityDimension(0,22)
.setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
VehicleTypeImpl type2 = VehicleTypeImpl.Builder.newInstance("type2")
.addCapacityDimension(0,22)
.setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
VehicleTypeImpl type3 = VehicleTypeImpl.Builder.newInstance("type3")
.addCapacityDimension(0,22)
.setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
// VehicleTypeImpl type1 = VehicleTypeImpl.Builder.newInstance("type1").setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
// VehicleTypeImpl type2 = VehicleTypeImpl.Builder.newInstance("type2").setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setType(type).setReturnToDepot(false)
VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setType(type).setReturnToDepot(true)
.setStartLocation(Location.newInstance(0, 0))
.setEarliestStart(0).setLatestArrival(220)
.setEarliestStart(0).setLatestArrival(420)
.setBreak((Break) Break.Builder.newInstance("v2-break").setTimeWindow(TimeWindow.newInstance(50,70)).setServiceTime(100).build())
.build();
VehicleImpl v3 = VehicleImpl.Builder.newInstance("v3").setType(type1).setReturnToDepot(false)
.setStartLocation(Location.newInstance(0, 10))
.setEarliestStart(200).setLatestArrival(450)
VehicleImpl v3 = VehicleImpl.Builder.newInstance("v3").setType(type2).setReturnToDepot(true)
.setStartLocation(Location.newInstance(0.5, 10.5))
.setBreak((Break) Break.Builder.newInstance("v3-break").setTimeWindow(TimeWindow.newInstance(50,70)).setServiceTime(100).build())
.setEarliestStart(0).setLatestArrival(420)
.build();
VehicleImpl v4 = VehicleImpl.Builder.newInstance("v4").setType(type3).setReturnToDepot(true)
.setStartLocation(Location.newInstance(7, 10.5))
.setBreak((Break) Break.Builder.newInstance("v4-break").setTimeWindow(TimeWindow.newInstance(50,70)).setServiceTime(50).build())
.setEarliestStart(0).setLatestArrival(420)
.build();
VehicleImpl v5 = VehicleImpl.Builder.newInstance("v5").setType(type3).setReturnToDepot(true)
.setStartLocation(Location.newInstance(7, 10.5))
.setBreak((Break) Break.Builder.newInstance("v5-break").setTimeWindow(TimeWindow.newInstance(300,350)).setServiceTime(20).build())
.setEarliestStart(250).setLatestArrival(420)
.build();
// VehicleImpl v4 = VehicleImpl.Builder.newInstance("v4").setType(type2).setReturnToDepot(true)
// .setStartLocation(Location.newInstance(0, 0)).build();
@ -55,14 +77,18 @@ public class VariableStartAndWaitingTimeExample {
for(int i=0;i<40;i++){
Service s = Service.Builder.newInstance("s_"+i).setServiceTime(5)
// .setTimeWindow(TimeWindow.newInstance(0,100*(1+r.nextInt(3))))
.setLocation(Location.newInstance(1 - r.nextInt(5), 10 + r.nextInt(10))).build();
.setLocation(Location.newInstance(1 - r.nextInt(5), 10 + r.nextInt(10)))
.addSizeDimension(0,1)
.build();
vrpBuilder.addJob(s);
}
Service s1 = Service.Builder.newInstance("s12").setLocation(Location.newInstance(-3, 15)).setTimeWindow(TimeWindow.newInstance(290, 600)).build();
Service s4 = Service.Builder.newInstance("s13").setLocation(Location.newInstance(0,20)).setTimeWindow(TimeWindow.newInstance(290, 340)).build();
Service s2 = Service.Builder.newInstance("s10").setLocation(Location.newInstance(-1, 15)).setTimeWindow(TimeWindow.newInstance(300, 350)).build();
Service s3 = Service.Builder.newInstance("s11").setLocation(Location.newInstance(10, 10)).setTimeWindow(TimeWindow.newInstance(300, 600)).build();
vrpBuilder.addJob(s1).addJob(s2).addJob(s3).addJob(s4).addVehicle(v2).addVehicle(v3);
Service s1 = Service.Builder.newInstance("s12").addSizeDimension(0,1).setLocation(Location.newInstance(-3, 15)).setTimeWindow(TimeWindow.newInstance(290, 600)).build();
Service s4 = Service.Builder.newInstance("s13").addSizeDimension(0,1).setLocation(Location.newInstance(0, 20)).setTimeWindow(TimeWindow.newInstance(290, 340)).build();
Service s2 = Service.Builder.newInstance("s10").addSizeDimension(0,1).setLocation(Location.newInstance(-1, 15)).setTimeWindow(TimeWindow.newInstance(300, 350)).build();
Service s3 = Service.Builder.newInstance("s11").addSizeDimension(0,1).setLocation(Location.newInstance(10, 10)).setTimeWindow(TimeWindow.newInstance(300, 600)).build();
vrpBuilder
.addJob(s1).addJob(s2).addJob(s3).addJob(s4)
.addVehicle(v2).addVehicle(v3).addVehicle(v4).addVehicle(v5);
vrpBuilder.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE);
final VehicleRoutingProblem vrp = vrpBuilder.build();
@ -77,6 +103,11 @@ public class VariableStartAndWaitingTimeExample {
.addCoreStateAndConstraintStuff(true)
.setStateAndConstraintManager(stateManager, constraintManager)
.setProperty(Jsprit.Parameter.THRESHOLD_INI, "0.1")
.setProperty(Jsprit.Strategy.CLUSTER_REGRET, "0.")
.setProperty(Jsprit.Strategy.CLUSTER_BEST, "0.")
// .setProperty(Jsprit.Strategy.WORST_REGRET, "0.")
// .setProperty(Jsprit.Strategy.RANDOM_REGRET, "0.")
// .setProperty(Jsprit.Strategy.RADIAL_REGRET, "0.")
// .setProperty(Jsprit.Parameter.THRESHOLD_ALPHA, "0.3")
// .setProperty(Parameter.)
// .setProperty(Jsprit.Parameter.CONSTRUCTION, Jsprit.Construction.BEST_INSERTION.toString())
@ -102,6 +133,7 @@ public class VariableStartAndWaitingTimeExample {
}
};
VehicleRoutingAlgorithm vra = algorithmFactory.createAlgorithm(vrp);
vra.addListener(new RuinBreaks());
vra.setMaxIterations(2000);
vra.addListener(new AlgorithmSearchProgressChartListener("output/search"));
VehicleRoutingProblemSolution solution = Solutions.bestOf(vra.searchSolutions());