source: branches/ParallelEngine/HeuristicLab.Problems.VehicleRouting/3.3/Encodings/Alba/Moves/LambdaInterchange/AlbaLambdaInterchangeMoveMaker.cs @ 5177

#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
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 * HeuristicLab is free software: you can redistribute it and/or modify
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 * GNU General Public License for more details.
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#endregion

using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Optimization;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Problems.VehicleRouting.Encodings.Alba {
  [Item("AlbaLambdaInterchangeMoveMaker", "Peforms a lambda interchange moves on a given VRP encoding and updates the quality. It is implemented as described in Alba, E. and Dorronsoro, B. (2004). Solving the Vehicle Routing Problem by Using Cellular Genetic Algorithms.")]
  [StorableClass]
  public class AlbaLambdaInterchangeMoveMaker : AlbaMoveMaker, IAlbaLambdaInterchangeMoveOperator, IMoveMaker {
    public override bool CanChangeName {
      get { return false; }
    }
    public ILookupParameter<DoubleValue> QualityParameter {
      get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
    }
    public ILookupParameter<DoubleValue> MoveQualityParameter {
      get { return (ILookupParameter<DoubleValue>)Parameters["MoveQuality"]; }
    }
    public ILookupParameter<AlbaLambdaInterchangeMove> LambdaInterchangeMoveParameter {
      get { return (ILookupParameter<AlbaLambdaInterchangeMove>)Parameters["AlbaLambdaInterchangeMove"]; }
    }

    [StorableConstructor]
    protected AlbaLambdaInterchangeMoveMaker(bool deserializing) : base(deserializing) { }
    protected AlbaLambdaInterchangeMoveMaker(AlbaLambdaInterchangeMoveMaker original, Cloner cloner)
      : base(original, cloner) {
    }
    public AlbaLambdaInterchangeMoveMaker()
      : base() {
      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the solution."));
      Parameters.Add(new LookupParameter<AlbaLambdaInterchangeMove>("AlbaLambdaInterchangeMove", "The move to make."));
      Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The relative quality of the move."));
    }

    public override IDeepCloneable Clone(Cloner cloner) {
      return new AlbaLambdaInterchangeMoveMaker(this, cloner);
    }

    public static void Apply(AlbaEncoding solution, AlbaLambdaInterchangeMove move) {
      AlbaLambdaInterchangeManipulator.Apply(
        solution,
        move.Tour1, move.Position1, move.Length1,
        move.Tour2, move.Position2, move.Length2);
    }

    public override IOperation Apply(IExecutionContext context) {
      IOperation next = base.Apply(context);

      AlbaLambdaInterchangeMove move = LambdaInterchangeMoveParameter.ActualValue;
      DoubleValue moveQuality = MoveQualityParameter.ActualValue;
      DoubleValue quality = QualityParameter.ActualValue;

      //perform move
      VRPToursParameter.ActualValue = move.MakeMove();

      quality.Value = moveQuality.Value;

      return next;
    }
  }
}