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Code Issues Releases Wiki Activity

added vehicle dependent time-window updater

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oblonski 2014-07-17 16:47:17 +02:00
parent e3fde8bb05
commit 453a69a76a
1 changed files with 74 additions and 4 deletions
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78
jsprit-core/src/main/java/jsprit/core/algorithm/state/UpdateVehicleDependentPracticalTimeWindows.java
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@ -1,7 +1,77 @@
package jsprit.core.algorithm.state;
/**
* Created by schroeder on 17.07.14.
*/
public class UpdateVehicleDependentPracticalTimeWindows {
import jsprit.core.problem.cost.VehicleRoutingTransportCosts;
import jsprit.core.problem.solution.route.VehicleRoute;
import jsprit.core.problem.solution.route.activity.ReverseActivityVisitor;
import jsprit.core.problem.solution.route.activity.TourActivity;
import jsprit.core.problem.solution.route.state.StateFactory;
import jsprit.core.problem.vehicle.Vehicle;
import jsprit.core.problem.vehicle.VehicleFleetManager;
import java.util.ArrayList;
import java.util.Collection;
public class UpdateVehicleDependentPracticalTimeWindows implements ReverseActivityVisitor, StateUpdater{
private final StateManager stateManager;
private final VehicleRoutingTransportCosts transportCosts;
private final VehicleFleetManager fleetManager;
private final boolean vehicleSwitchAllowed;
private VehicleRoute route;
private double[] latest_arrTimes_at_prevAct;
private String[] location_of_prevAct;
private Collection<Vehicle> vehicles;
public UpdateVehicleDependentPracticalTimeWindows(StateManager stateManager, VehicleRoutingTransportCosts tpCosts, VehicleFleetManager fleetManager, boolean isVehicleSwitchAllowed) {
super();
this.stateManager = stateManager;
this.transportCosts = tpCosts;
this.fleetManager = fleetManager;
this.vehicleSwitchAllowed=isVehicleSwitchAllowed;
int maxVehicleTypeIndex = getMaxTypeIndex(fleetManager);
latest_arrTimes_at_prevAct = new double[maxVehicleTypeIndex];
location_of_prevAct = new String[maxVehicleTypeIndex];
}
private int getMaxTypeIndex(VehicleFleetManager fleetManager) {
return 0;
}
@Override
public void begin(VehicleRoute route) {
this.route = route;
vehicles = new ArrayList<Vehicle>();
if(vehicleSwitchAllowed) vehicles.addAll(fleetManager.getAvailableVehicles(route.getVehicle()));
vehicles.add(route.getVehicle());
for(Vehicle vehicle : vehicles){
latest_arrTimes_at_prevAct[vehicle.getVehicleTypeIdentifier().getIndex()] = vehicle.getLatestArrival();
location_of_prevAct[vehicle.getVehicleTypeIdentifier().getIndex()] = vehicle.getEndLocationId();
}
}
@Override
public void visit(TourActivity activity) {
for(Vehicle vehicle : vehicles){
double latestArrTimeAtPrevAct = latest_arrTimes_at_prevAct[vehicle.getVehicleTypeIdentifier().getIndex()];
String prevLocation = location_of_prevAct[vehicle.getVehicleTypeIdentifier().getIndex()];
double potentialLatestArrivalTimeAtCurrAct = latestArrTimeAtPrevAct - transportCosts.getBackwardTransportTime(activity.getLocationId(), prevLocation,
latestArrTimeAtPrevAct, route.getDriver(), vehicle) - activity.getOperationTime();
double latestArrivalTime = Math.min(activity.getTheoreticalLatestOperationStartTime(), potentialLatestArrivalTimeAtCurrAct);
stateManager.putActivityState(activity, vehicle, StateFactory.LATEST_OPERATION_START_TIME, latestArrivalTime);
latest_arrTimes_at_prevAct[vehicle.getVehicleTypeIdentifier().getIndex()] = latestArrivalTime;
location_of_prevAct[vehicle.getVehicleTypeIdentifier().getIndex()] = activity.getLocationId();
}
}
@Override
public void finish() {}
}