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Code Issues Releases Wiki Activity

play with BicycleMessenger

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oblonski 2013-12-05 09:57:32 +01:00
parent 8566b8cdac
commit 760312fc7e
1 changed files with 8 additions and 8 deletions
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16
jsprit-examples/src/main/java/jsprit/examples/BicycleMessenger.java
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@ -8,7 +8,6 @@ import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import jsprit.analysis.toolbox.AlgorithmSearchProgressChartListener;
import jsprit.analysis.toolbox.Plotter;
import jsprit.analysis.toolbox.SolutionPrinter;
import jsprit.core.algorithm.VehicleRoutingAlgorithm;
@ -71,13 +70,13 @@ public class BicycleMessenger {
public ConstraintsStatus fulfilled(JobInsertionContext iFacts,TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
double arrivalTime_at_newAct = prevActDepTime + routingCosts.getTransportTime(prevAct.getLocationId(), newAct.getLocationId(), prevActDepTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
//local impact
if(newAct instanceof DeliverShipment){
double directTimeOfNearestMessenger = bestMessengers.get(((DeliverShipment) newAct).getJob().getId());
if(arrivalTime_at_newAct > 3 * directTimeOfNearestMessenger){
//not fulfilled AND it can never be fulfilled anymore by going forward in route, thus NOT_FULFILLED_BREAK
return ConstraintsStatus.NOT_FULFILLED_BREAK;
}
//no matter whether it is a pickupShipment or deliverShipment activities. both arrivalTimes must be < 3*best.
double directTimeOfNearestMessenger = bestMessengers.get(((JobActivity) newAct).getJob().getId());
if(arrivalTime_at_newAct > 3 * directTimeOfNearestMessenger){
//not fulfilled AND it can never be fulfilled anymore by going forward in route, thus NOT_FULFILLED_BREAK
return ConstraintsStatus.NOT_FULFILLED_BREAK;
}
//impact on whole route, since insertion of newAct shifts all subsequent activities forward in time
double departureTime_at_newAct = arrivalTime_at_newAct + newAct.getOperationTime();
double deliverTimeAtNextAct = departureTime_at_newAct + routingCosts.getTransportTime(newAct.getLocationId(), nextAct.getLocationId(), departureTime_at_newAct, iFacts.getNewDriver(), iFacts.getNewVehicle());;
@ -217,6 +216,7 @@ public class BicycleMessenger {
validateSolution(Solutions.bestOf(solutions), bicycleMessengerProblem, nearestMessengers);
SolutionPrinter.print(Solutions.bestOf(solutions));
SolutionPrinter.print(Solutions.bestOf(solutions), bicycleMessengerProblem);
//you may want to plot the problem
Plotter plotter = new Plotter(bicycleMessengerProblem);
@ -241,7 +241,7 @@ public class BicycleMessenger {
private static void validateSolution(VehicleRoutingProblemSolution bestOf, VehicleRoutingProblem bicycleMessengerProblem, Map<String, Double> nearestMessengers) {
for(VehicleRoute route : bestOf.getRoutes()){
assert !(route.getVehicle().getType() instanceof PenaltyVehicleType) : "penaltyVehicle in solution. if there is a valid solution, this should not be";
for(TourActivity act : route.getTourActivities().getActivities()){ //getTourActivities().getActivities() is strange and thus may be replaced sooner or later by another name
for(TourActivity act : route.getActivities()){
assert act.getArrTime() < 3*nearestMessengers.get(((JobActivity)act).getJob().getId()) : "three times less than ... constraint broken. this must not be";
}
}