#region License Information
/* HeuristicLab
* Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Operators;
using HeuristicLab.Optimization;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using HeuristicLab.Common;
using HeuristicLab.Problems.VehicleRouting.ProblemInstances;
using HeuristicLab.Problems.VehicleRouting.Interfaces;
using HeuristicLab.Problems.VehicleRouting.Variants;
namespace HeuristicLab.Problems.VehicleRouting.Encodings.Potvin {
[Item("PotvinPDShiftMoveMaker", "Peforms the shift move on a given PDP encoding and updates the quality.")]
[StorableClass]
public class PotvinPDShiftMoveMaker : PotvinMoveMaker, IPotvinPDShiftMoveOperator, IMoveMaker {
public ILookupParameter PDShiftMoveParameter {
get { return (ILookupParameter)Parameters["PotvinPDShiftMove"]; }
}
public override ILookupParameter VRPMoveParameter {
get { return PDShiftMoveParameter; }
}
[StorableConstructor]
private PotvinPDShiftMoveMaker(bool deserializing) : base(deserializing) { }
public PotvinPDShiftMoveMaker()
: base() {
Parameters.Add(new LookupParameter("PotvinPDShiftMove", "The moves that should be made."));
}
public override IDeepCloneable Clone(Cloner cloner) {
return new PotvinPDShiftMoveMaker(this, cloner);
}
protected PotvinPDShiftMoveMaker(PotvinPDShiftMoveMaker original, Cloner cloner)
: base(original, cloner) {
}
public static void Apply(PotvinEncoding solution, PotvinPDShiftMove move, IVRPProblemInstance problemInstance) {
if (move.Tour >= solution.Tours.Count)
solution.Tours.Add(new Tour());
Tour tour = solution.Tours[move.Tour];
Tour oldTour = solution.Tours.Find(t => t.Stops.Contains(move.City));
oldTour.Stops.Remove(move.City);
if (problemInstance is IPickupAndDeliveryProblemInstance) {
IPickupAndDeliveryProblemInstance pdp = problemInstance as IPickupAndDeliveryProblemInstance;
int location = pdp.GetPickupDeliveryLocation(move.City);
Tour oldTour2 = solution.Tours.Find(t => t.Stops.Contains(location));
oldTour2.Stops.Remove(location);
solution.InsertPair(tour, move.City, location, problemInstance);
} else {
int place = solution.FindBestInsertionPlace(tour, move.City);
tour.Stops.Insert(place, move.City);
}
}
protected override void PerformMove() {
PotvinPDShiftMove move = PDShiftMoveParameter.ActualValue;
PotvinEncoding newSolution = move.Individual.Clone() as PotvinEncoding;
Apply(newSolution, move, ProblemInstance);
newSolution.Repair();
VRPToursParameter.ActualValue = newSolution;
}
}
}