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Code Issues Releases Wiki Activity

refine ServiceDeliveriesFirst constraint and add examples

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This commit is contained in:
Stefan Schroeder 2013-11-21 14:51:12 +01:00
parent a9da587f6a
commit 77d38de461
9 changed files with 36030 additions and 2 deletions
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2
jsprit-core/src/main/java/algorithms/BestInsertionBuilder.java
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@ -107,5 +107,7 @@ public class BestInsertionBuilder {
return bestInsertion;
}
}

13
jsprit-core/src/main/java/algorithms/CalculatorBuilder.java
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@ -20,6 +20,7 @@ import java.util.ArrayList;
import java.util.List;
import basics.Delivery;
import basics.Job;
import basics.Pickup;
import basics.Service;
import basics.Shipment;
@ -193,6 +194,7 @@ class CalculatorBuilder {
standardLocal = createStandardLocal(vrp, states);
}
else{
checkServicesOnly();
standardLocal = createStandardRoute(vrp, states,forwardLooking,memory);
}
baseCalculator = standardLocal.getCalculator();
@ -210,6 +212,17 @@ class CalculatorBuilder {
return createFinalInsertion(fleetManager, baseCalculator, states);
}
private void checkServicesOnly() {
for(Job j : vrp.getJobs().values()){
if(j instanceof Shipment){
throw new UnsupportedOperationException("currently the 'insert-on-route-level' option is only available for services (i.e. service, pickup, delivery), \n" +
"if you want to deal with shipments switch to option 'local-level' by either setting bestInsertionBuilder.setLocalLevel() or \n"
+ "by omitting the xml-tag '<level forwardLooking=2 memory=1>route</level>' when defining your insertionStrategy in algo-config.xml file");
}
}
}
private void addInsertionListeners(List<InsertionListener> list) {
for(InsertionListener iL : list){
insertionListeners.add(iL);

8
jsprit-core/src/main/java/algorithms/ServiceBackhaulConstraint.java
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@ -1,7 +1,9 @@
package algorithms;
import basics.route.DeliverService;
import basics.route.DeliverShipment;
import basics.route.PickupService;
import basics.route.PickupShipment;
import basics.route.ServiceActivity;
import basics.route.TourActivity;
@ -13,6 +15,12 @@ public class ServiceBackhaulConstraint implements HardActivityStateLevelConstrai
if(newAct instanceof ServiceActivity && nextAct instanceof DeliverService){ return ConstraintsStatus.NOT_FULFILLED; }
if(newAct instanceof DeliverService && prevAct instanceof PickupService){ return ConstraintsStatus.NOT_FULFILLED_BREAK; }
if(newAct instanceof DeliverService && prevAct instanceof ServiceActivity){ return ConstraintsStatus.NOT_FULFILLED_BREAK; }
if(newAct instanceof DeliverService && prevAct instanceof PickupShipment){ return ConstraintsStatus.NOT_FULFILLED_BREAK; }
if(newAct instanceof DeliverService && prevAct instanceof DeliverShipment){ return ConstraintsStatus.NOT_FULFILLED_BREAK; }
if(newAct instanceof PickupShipment && nextAct instanceof DeliverService){ return ConstraintsStatus.NOT_FULFILLED;}
if(newAct instanceof DeliverShipment && nextAct instanceof DeliverService){ return ConstraintsStatus.NOT_FULFILLED;}
return ConstraintsStatus.FULFILLED;
}

2
jsprit-core/src/main/java/basics/VehicleRoutingProblem.java
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@ -55,7 +55,7 @@ public class VehicleRoutingProblem {
/**
* Overall problem constraints.
*
* <p>DELIIVERIES_FIRST corresponds to the vehicle routing problem with back hauls, i.e. before a vehicle is not entirely unloaded, no pickup can be made.
* <p>DELIVERIES_FIRST corresponds to the vehicle routing problem with back hauls, i.e. before a vehicle is not entirely unloaded, no pickup can be made.
*
* @author stefan
*