mirror of
https://github.com/graphhopper/jsprit.git
synced 2020-01-24 07:45:05 +01:00
add and test skill constraint violation checks
This commit is contained in:
oblonski
parent
47d859652a
commit
c788b477b6
2 changed files with 287 additions and 92 deletions
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@ -27,10 +27,7 @@ import jsprit.core.util.ActivityTimeTracker;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.*;
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/**
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*
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@ -247,6 +244,48 @@ public class SolutionAnalyser {
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}
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}
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private static class SkillUpdater implements StateUpdater, ActivityVisitor {
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private StateManager stateManager;
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private StateId skill_id;
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private VehicleRoute route;
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private boolean skillConstraintViolatedOnRoute;
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private SkillUpdater(StateManager stateManager, StateId skill_id) {
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this.stateManager = stateManager;
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this.skill_id = skill_id;
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}
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@Override
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public void begin(VehicleRoute route) {
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this.route = route;
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skillConstraintViolatedOnRoute = false;
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}
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@Override
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public void visit(TourActivity activity) {
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boolean violatedAtActivity = false;
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if(activity instanceof TourActivity.JobActivity){
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Set<String> requiredForActivity = ((TourActivity.JobActivity) activity).getJob().getRequiredSkills().values();
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for(String skill : requiredForActivity){
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if(!route.getVehicle().getSkills().containsSkill(skill)){
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violatedAtActivity = true;
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skillConstraintViolatedOnRoute = true;
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}
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}
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}
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stateManager.putActivityState(activity,skill_id,violatedAtActivity);
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}
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@Override
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public void finish() {
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stateManager.putRouteState(route,skill_id, skillConstraintViolatedOnRoute);
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}
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}
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private static final Logger log = LogManager.getLogger(SolutionAnalyser.class);
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private VehicleRoutingProblem vrp;
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@ -271,16 +310,14 @@ public class SolutionAnalyser {
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private final StateId backhaul_id;
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private final StateId skill_id;
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private ActivityTimeTracker.ActivityPolicy activityPolicy;
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private final VehicleRoutingProblemSolution working_solution;
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public SolutionAnalyser(VehicleRoutingProblem vrp, VehicleRoutingProblemSolution solution, DistanceCalculator distanceCalculator) {
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this.vrp = vrp;
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// this.original_solution = VehicleRoutingProblemSolution.copyOf(solution);
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this.working_solution = solution;
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this.routes = new ArrayList<VehicleRoute>(working_solution.getRoutes());
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this.routes = new ArrayList<VehicleRoute>(solution.getRoutes());
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this.stateManager = new StateManager(vrp);
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this.stateManager.updateTimeWindowStates();
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this.stateManager.updateLoadStates();
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@ -296,9 +333,11 @@ public class SolutionAnalyser {
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too_late_id = stateManager.createStateId("too-late");
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shipment_id = stateManager.createStateId("shipment");
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backhaul_id = stateManager.createStateId("backhaul");
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skill_id = stateManager.createStateId("skills-violated");
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stateManager.addStateUpdater(new SumUpActivityTimes(waiting_time_id, transport_time_id, service_time_id,too_late_id , stateManager, activityPolicy));
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stateManager.addStateUpdater(new DistanceUpdater(distance_id,stateManager,distanceCalculator));
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stateManager.addStateUpdater(new BackhaulAndShipmentUpdater(backhaul_id,shipment_id,stateManager));
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stateManager.addStateUpdater(new SkillUpdater(stateManager,skill_id));
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refreshStates();
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}
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@ -451,22 +490,53 @@ public class SolutionAnalyser {
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return Math.max(0, activity.getArrTime() - activity.getTheoreticalLatestOperationStartTime());
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}
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/**
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* @param route to check skill constraint
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* @return true if skill constraint is violated, i.e. if vehicle does not have the required skills to conduct all
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* activities on the specified route. Returns null if route is null or skill state cannot be found.
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*/
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public Boolean skillConstraintIsViolated(VehicleRoute route){
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if(route == null) throw new IllegalStateException("route is missing.");
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return null;
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return stateManager.getRouteState(route, skill_id, Boolean.class);
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}
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/**
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* @param activity to check skill constraint
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* @param route that must contain specified activity
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* @return true if vehicle does not have the skills to conduct specified activity, false otherwise. Returns null
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* if specified route or activity is null or if route does not contain specified activity or if skill state connot be
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* found. If specified activity is Start or End, it returns false.
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*/
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public Boolean skillConstraintIsViolatedAtActivity(TourActivity activity, VehicleRoute route){
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if(route == null) throw new IllegalStateException("route is missing.");
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if(activity == null) throw new IllegalStateException("activity is missing.");
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if(activity instanceof Start) return false;
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if(activity instanceof End) return false;
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verifyThatRouteContainsAct(activity, route);
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return null;
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return stateManager.getActivityState(activity, skill_id, Boolean.class);
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}
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/**
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* Returns true if backhaul constraint is violated (false otherwise). Backhaul constraint is violated if either a
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* pickupService, serviceActivity (which is basically modeled as pickupService) or a pickupShipment occur before
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* a deliverService activity or - to put it in other words - if a depot bounded delivery occurs after a pickup, thus
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* the backhaul ensures depot bounded delivery activities first.
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*
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* @param route to check backhaul constraint
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* @return true if backhaul constraint for specified route is violated. returns null if route is null or no backhaul
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* state can be found. In latter case try routeChanged(route).
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*/
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public Boolean backhaulConstraintIsViolated(VehicleRoute route){
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if(route == null) throw new IllegalStateException("route is missing.");
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return stateManager.getRouteState(route,backhaul_id,Boolean.class);
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}
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/**
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* @param activity to check backhaul violation
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* @param route that must contain the specified activity
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* @return true if backhaul constraint is violated, false otherwise. Null if either specified route or activity is null.
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* Null if specified route does not contain specified activity.
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*/
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public Boolean backhaulConstraintIsViolatedAtActivity(TourActivity activity, VehicleRoute route){
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if(route == null) throw new IllegalStateException("route is missing.");
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if(activity == null) throw new IllegalStateException("activity is missing.");
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@ -476,11 +546,28 @@ public class SolutionAnalyser {
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return stateManager.getActivityState(activity,backhaul_id,Boolean.class);
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}
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/**
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* Returns true, if shipment constraint is violated. Two activities are associated to a shipment: pickupShipment
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* and deliverShipment. If both shipments are not in the same route OR deliverShipment occurs before pickupShipment
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* then the shipment constraint is violated.
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*
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* @param route to check the shipment constraint.
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* @return true if violated, false otherwise. Null if no state can be found or specified route is null.
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*/
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public Boolean shipmentConstraintIsViolated(VehicleRoute route){
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if(route == null) throw new IllegalStateException("route is missing.");
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return stateManager.getRouteState(route,shipment_id,Boolean.class);
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}
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/**
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* Returns true if shipment constraint is violated, i.e. if activity is deliverShipment but no pickupShipment can be
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* found before OR activity is pickupShipment and no deliverShipment can be found afterwards.
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*
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* @param activity to check the shipment constraint
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* @param route that must contain specified activity
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* @return true if shipment constraint is violated, false otherwise. If activity is either Start or End, it returns
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* false. Returns null if either specified activity or route is null or route does not containt activity.
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*/
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public Boolean shipmentConstraintIsViolatedAtActivity(TourActivity activity, VehicleRoute route){
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if(route == null) throw new IllegalStateException("route is missing.");
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if(activity == null) throw new IllegalStateException("activity is missing.");
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@ -58,18 +58,31 @@ public class SolutionAnalyserTest {
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VehicleType type = VehicleTypeImpl.Builder.newInstance("type").setFixedCost(100.).setCostPerDistance(2.).addCapacityDimension(0, 15).build();
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VehicleImpl vehicle = VehicleImpl.Builder.newInstance("v1").setType(type)
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.setStartLocationCoordinate(Coordinate.newInstance(-5, 0)).build();
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.setStartLocationCoordinate(Coordinate.newInstance(-5, 0))
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.addSkill("skill1").addSkill("skill2")
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.build();
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VehicleImpl vehicle2 = VehicleImpl.Builder.newInstance("v2").setType(type)
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.setStartLocationCoordinate(Coordinate.newInstance(5, 0)).build();
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Service s1 = Service.Builder.newInstance("s1")
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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.setCoord(Coordinate.newInstance(-10, 1)).addSizeDimension(0, 2).build();
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Service s2 = Service.Builder.newInstance("s2").setCoord(Coordinate.newInstance(-10, 10)).addSizeDimension(0,3).build();
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Shipment shipment1 = Shipment.Builder.newInstance("ship1").setPickupCoord(Coordinate.newInstance(-15, 2))
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.setDeliveryCoord(Coordinate.newInstance(-16, 5)).addSizeDimension(0,10)
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.setPickupServiceTime(20.).setDeliveryServiceTime(20.).build();
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.setCoord(Coordinate.newInstance(-10, 1)).addSizeDimension(0, 2)
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.addRequiredSkill("skill1")
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.build();
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Service s2 = Service.Builder.newInstance("s2")
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.setCoord(Coordinate.newInstance(-10, 10))
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.addSizeDimension(0,3)
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.addRequiredSkill("skill2").addRequiredSkill("skill1")
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.build();
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Shipment shipment1 = Shipment.Builder.newInstance("ship1")
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.setPickupCoord(Coordinate.newInstance(-15, 2))
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.setDeliveryCoord(Coordinate.newInstance(-16, 5))
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.addSizeDimension(0,10)
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.setPickupServiceTime(20.)
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.setDeliveryServiceTime(20.)
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.addRequiredSkill("skill3")
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.build();
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Service s3 = Service.Builder.newInstance("s3")
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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@ -95,6 +108,63 @@ public class SolutionAnalyserTest {
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solution = new VehicleRoutingProblemSolution(Arrays.asList(route1,route2),42);
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}
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public void buildAnotherScenarioWithOnlyOneVehicleAndWithoutAnyConstraintsBefore(){
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VehicleType type = VehicleTypeImpl.Builder.newInstance("type").setFixedCost(100.).setCostPerDistance(2.).addCapacityDimension(0, 15).build();
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VehicleImpl vehicle = VehicleImpl.Builder.newInstance("v1").setType(type)
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.setStartLocationCoordinate(Coordinate.newInstance(-5, 0))
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.setLatestArrival(150.)
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.build();
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Pickup s1 = (Pickup) Pickup.Builder.newInstance("s1")
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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.setCoord(Coordinate.newInstance(-10, 1))
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.addSizeDimension(0, 10)
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.build();
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Delivery s2 = (Delivery) Delivery.Builder.newInstance("s2")
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.setCoord(Coordinate.newInstance(-10, 10))
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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.addSizeDimension(0, 20)
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.build();
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Shipment shipment1 = Shipment.Builder.newInstance("ship1").setPickupCoord(Coordinate.newInstance(-15, 2)).setDeliveryCoord(Coordinate.newInstance(-16, 5))
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.addSizeDimension(0, 15)
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.setPickupServiceTime(20.).setDeliveryServiceTime(20.)
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.setPickupTimeWindow(TimeWindow.newInstance(10,20)).setDeliveryTimeWindow(TimeWindow.newInstance(10,20))
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.build();
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Pickup s3 = (Pickup) Pickup.Builder.newInstance("s3")
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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.setCoord(Coordinate.newInstance(10, 1))
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.addSizeDimension(0, 10)
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.build();
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Delivery s4 = (Delivery) Delivery.Builder.newInstance("s4").setCoord(Coordinate.newInstance(10, 10))
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.addSizeDimension(0, 20)
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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.build();
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Shipment shipment2 = Shipment.Builder.newInstance("ship2").setPickupCoord(Coordinate.newInstance(15, 2))
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.setPickupServiceTime(20.).setDeliveryServiceTime(20.)
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.setDeliveryCoord(Coordinate.newInstance(16, 5))
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.setPickupTimeWindow(TimeWindow.newInstance(10, 20)).setDeliveryTimeWindow(TimeWindow.newInstance(10, 20))
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.addSizeDimension(0, 15).build();
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VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance().addVehicle(vehicle)
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.addJob(s1)
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.addJob(s2).addJob(shipment1).addJob(s3).addJob(s4).addJob(shipment2).setFleetSize(VehicleRoutingProblem.FleetSize.FINITE);
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vrpBuilder.setRoutingCost(new ManhattanCosts(vrpBuilder.getLocations()));
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vrp = vrpBuilder.build();
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VehicleRoute route = VehicleRoute.Builder.newInstance(vehicle).setJobActivityFactory(vrp.getJobActivityFactory())
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.addPickup(s3)
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.addPickup(shipment2).addDelivery(shipment2)
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.addDelivery(s4)
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.addDelivery(s2)
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.addPickup(shipment1).addDelivery(shipment1)
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.addPickup(s1)
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.build();
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solution = new VehicleRoutingProblemSolution(Arrays.asList(route),300);
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}
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@Test
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public void constructionShouldWork(){
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SolutionAnalyser analyser = new SolutionAnalyser(vrp,solution, new SolutionAnalyser.DistanceCalculator() {
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@ -1689,79 +1759,117 @@ public class SolutionAnalyserTest {
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assertTrue(violation);
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}
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public void buildAnotherScenarioWithOnlyOneVehicleAndWithoutAnyConstraintsBefore(){
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VehicleType type = VehicleTypeImpl.Builder.newInstance("type").setFixedCost(100.).setCostPerDistance(2.).addCapacityDimension(0, 15).build();
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VehicleImpl vehicle = VehicleImpl.Builder.newInstance("v1").setType(type)
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.setStartLocationCoordinate(Coordinate.newInstance(-5, 0))
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.setLatestArrival(150.)
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.build();
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Pickup s1 = (Pickup) Pickup.Builder.newInstance("s1")
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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.setCoord(Coordinate.newInstance(-10, 1))
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.addSizeDimension(0, 10)
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.build();
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Delivery s2 = (Delivery) Delivery.Builder.newInstance("s2")
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.setCoord(Coordinate.newInstance(-10, 10))
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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.addSizeDimension(0, 20)
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.build();
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Shipment shipment1 = Shipment.Builder.newInstance("ship1").setPickupCoord(Coordinate.newInstance(-15, 2)).setDeliveryCoord(Coordinate.newInstance(-16, 5))
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.addSizeDimension(0, 15)
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.setPickupServiceTime(20.).setDeliveryServiceTime(20.)
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.setPickupTimeWindow(TimeWindow.newInstance(10,20)).setDeliveryTimeWindow(TimeWindow.newInstance(10,20))
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.build();
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Pickup s3 = (Pickup) Pickup.Builder.newInstance("s3")
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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.setCoord(Coordinate.newInstance(10, 1))
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.addSizeDimension(0, 10)
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.build();
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Delivery s4 = (Delivery) Delivery.Builder.newInstance("s4").setCoord(Coordinate.newInstance(10, 10))
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.addSizeDimension(0, 20)
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.setTimeWindow(TimeWindow.newInstance(10, 20))
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.build();
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Shipment shipment2 = Shipment.Builder.newInstance("ship2").setPickupCoord(Coordinate.newInstance(15, 2))
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.setPickupServiceTime(20.).setDeliveryServiceTime(20.)
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.setDeliveryCoord(Coordinate.newInstance(16, 5))
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.setPickupTimeWindow(TimeWindow.newInstance(10, 20)).setDeliveryTimeWindow(TimeWindow.newInstance(10, 20))
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.addSizeDimension(0, 15).build();
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VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance().addVehicle(vehicle)
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.addJob(s1)
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.addJob(s2).addJob(shipment1).addJob(s3).addJob(s4).addJob(shipment2).setFleetSize(VehicleRoutingProblem.FleetSize.FINITE);
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vrpBuilder.setRoutingCost(new ManhattanCosts(vrpBuilder.getLocations()));
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vrp = vrpBuilder.build();
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VehicleRoute route = VehicleRoute.Builder.newInstance(vehicle).setJobActivityFactory(vrp.getJobActivityFactory())
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.addPickup(s3)
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.addPickup(shipment2).addDelivery(shipment2)
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.addDelivery(s4)
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.addDelivery(s2)
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.addPickup(shipment1).addDelivery(shipment1)
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.addPickup(s1)
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.build();
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solution = new VehicleRoutingProblemSolution(Arrays.asList(route),300);
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// VehicleRoutingAlgorithmBuilder vraBuilder = new VehicleRoutingAlgorithmBuilder(vrp,"src/test/resources/algorithmConfig.xml");
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// vraBuilder.addDefaultCostCalculators();
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//
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// //adds updater
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// StateManager stateManager = new StateManager(vrp);
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// stateManager.updateLoadStates();
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// stateManager.updateTimeWindowStates();
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//
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// //but no constraints to simulate violation
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// ConstraintManager constraintManager = new ConstraintManager(vrp,stateManager);
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// vraBuilder.setStateAndConstraintManager(stateManager,constraintManager);
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//
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// VehicleRoutingAlgorithm vra = vraBuilder.build();
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// vra.setMaxIterations(100);
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// solution = Solutions.bestOf(vra.searchSolutions());
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@Test
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public void skillViolationOnRoute_shouldWorkWhenViolated(){
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SolutionAnalyser analyser = new SolutionAnalyser(vrp,solution, new SolutionAnalyser.DistanceCalculator() {
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@Override
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public double getDistance(String fromLocationId, String toLocationId) {
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return vrp.getTransportCosts().getTransportCost(fromLocationId,toLocationId,0.,null,null);
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}
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});
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VehicleRoute route = solution.getRoutes().iterator().next();
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Boolean violated = analyser.skillConstraintIsViolated(route);
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assertTrue(violated);
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}
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@Test
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public void skillViolationAtStart_shouldWork(){
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SolutionAnalyser analyser = new SolutionAnalyser(vrp,solution, new SolutionAnalyser.DistanceCalculator() {
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@Override
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public double getDistance(String fromLocationId, String toLocationId) {
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return vrp.getTransportCosts().getTransportCost(fromLocationId,toLocationId,0.,null,null);
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}
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});
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VehicleRoute route = solution.getRoutes().iterator().next();
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Boolean violated = analyser.skillConstraintIsViolatedAtActivity(route.getStart(), route);
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assertFalse(violated);
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}
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@Test
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public void skillViolationAtAct1_shouldWork(){
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SolutionAnalyser analyser = new SolutionAnalyser(vrp,solution, new SolutionAnalyser.DistanceCalculator() {
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@Override
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public double getDistance(String fromLocationId, String toLocationId) {
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return vrp.getTransportCosts().getTransportCost(fromLocationId,toLocationId,0.,null,null);
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}
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});
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VehicleRoute route = solution.getRoutes().iterator().next();
|
||||
Boolean violated = analyser.skillConstraintIsViolatedAtActivity(route.getActivities().get(0),route);
|
||||
assertFalse(violated);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void skillViolationAtAct2_shouldWork(){
|
||||
SolutionAnalyser analyser = new SolutionAnalyser(vrp,solution, new SolutionAnalyser.DistanceCalculator() {
|
||||
@Override
|
||||
public double getDistance(String fromLocationId, String toLocationId) {
|
||||
return vrp.getTransportCosts().getTransportCost(fromLocationId,toLocationId,0.,null,null);
|
||||
}
|
||||
});
|
||||
VehicleRoute route = solution.getRoutes().iterator().next();
|
||||
Boolean violated = analyser.skillConstraintIsViolatedAtActivity(route.getActivities().get(1),route);
|
||||
assertTrue(violated);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void skillViolationAtAct3_shouldWork(){
|
||||
SolutionAnalyser analyser = new SolutionAnalyser(vrp,solution, new SolutionAnalyser.DistanceCalculator() {
|
||||
@Override
|
||||
public double getDistance(String fromLocationId, String toLocationId) {
|
||||
return vrp.getTransportCosts().getTransportCost(fromLocationId,toLocationId,0.,null,null);
|
||||
}
|
||||
});
|
||||
VehicleRoute route = solution.getRoutes().iterator().next();
|
||||
Boolean violated = analyser.skillConstraintIsViolatedAtActivity(route.getActivities().get(2),route);
|
||||
assertTrue(violated);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void skillViolationAtAct4_shouldWork(){
|
||||
SolutionAnalyser analyser = new SolutionAnalyser(vrp,solution, new SolutionAnalyser.DistanceCalculator() {
|
||||
@Override
|
||||
public double getDistance(String fromLocationId, String toLocationId) {
|
||||
return vrp.getTransportCosts().getTransportCost(fromLocationId,toLocationId,0.,null,null);
|
||||
}
|
||||
});
|
||||
VehicleRoute route = solution.getRoutes().iterator().next();
|
||||
Boolean violated = analyser.skillConstraintIsViolatedAtActivity(route.getActivities().get(3),route);
|
||||
assertFalse(violated);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void skillViolationAtEnd_shouldWork(){
|
||||
SolutionAnalyser analyser = new SolutionAnalyser(vrp,solution, new SolutionAnalyser.DistanceCalculator() {
|
||||
@Override
|
||||
public double getDistance(String fromLocationId, String toLocationId) {
|
||||
return vrp.getTransportCosts().getTransportCost(fromLocationId,toLocationId,0.,null,null);
|
||||
}
|
||||
});
|
||||
VehicleRoute route = solution.getRoutes().iterator().next();
|
||||
Boolean violated = analyser.skillConstraintIsViolatedAtActivity(route.getEnd(),route);
|
||||
assertFalse(violated);
|
||||
}
|
||||
|
||||
|
||||
|
||||
@Test
|
||||
public void skillViolationOnRoute_shouldWorkWhenNotViolated(){
|
||||
SolutionAnalyser analyser = new SolutionAnalyser(vrp,solution, new SolutionAnalyser.DistanceCalculator() {
|
||||
@Override
|
||||
public double getDistance(String fromLocationId, String toLocationId) {
|
||||
return vrp.getTransportCosts().getTransportCost(fromLocationId,toLocationId,0.,null,null);
|
||||
}
|
||||
});
|
||||
|
||||
Iterator<VehicleRoute> iterator = solution.getRoutes().iterator();
|
||||
iterator.next();
|
||||
VehicleRoute route = iterator.next();
|
||||
Boolean violated = analyser.skillConstraintIsViolated(route);
|
||||
assertFalse(violated);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue