source: trunk/sources/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Alba/Moves/IntraRouteInversion/AlbaIntraRouteInversionMoveGenerator.cs @ 7895

#region License Information
/* HeuristicLab
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#endregion

using System;
using HeuristicLab.Core;
using HeuristicLab.Optimization;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using HeuristicLab.Problems.VehicleRouting.Encodings.Alba;
using HeuristicLab.Parameters;
using System.Collections.Generic;
using HeuristicLab.Problems.VehicleRouting.Interfaces;
using HeuristicLab.Common;

namespace HeuristicLab.Problems.VehicleRouting.Encodings.Alba {
  [Item("AlbaIntraRouteInversionMoveGenerator", "Generates intra route inversion moves from a given VRP encoding.  It is implemented as described in Alba, E. and Dorronsoro, B. (2004). Solving the Vehicle Routing Problem by Using Cellular Genetic Algorithms.")]
  [StorableClass]
  public abstract class AlbaIntraRouteInversionMoveGenerator : AlbaMoveGenerator, IExhaustiveMoveGenerator, IAlbaIntraRouteInversionMoveOperator {
    public ILookupParameter<AlbaIntraRouteInversionMove> IntraRouteInversionMoveParameter {
      get { return (ILookupParameter<AlbaIntraRouteInversionMove>)Parameters["AlbaIntraRouteInversionMove"]; }
    }

    public override ILookupParameter VRPMoveParameter {
      get { return IntraRouteInversionMoveParameter; }
    }

    protected ScopeParameter CurrentScopeParameter {
      get { return (ScopeParameter)Parameters["CurrentScope"]; }
    }

    [StorableConstructor]
    protected AlbaIntraRouteInversionMoveGenerator(bool deserializing) : base(deserializing) { }

    public AlbaIntraRouteInversionMoveGenerator()
      : base() {
        Parameters.Add(new LookupParameter<AlbaIntraRouteInversionMove>("AlbaIntraRouteInversionMove", "The moves that should be generated in subscopes."));
        Parameters.Add(new ScopeParameter("CurrentScope", "The current scope where the moves should be added as subscopes."));
    }

    protected AlbaIntraRouteInversionMoveGenerator(AlbaIntraRouteInversionMoveGenerator original, Cloner cloner)
      : base(original, cloner) {
    }

    protected abstract AlbaIntraRouteInversionMove[] GenerateMoves(AlbaEncoding individual, IVRPProblemInstance problemInstance);

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

      AlbaEncoding individual = VRPToursParameter.ActualValue as AlbaEncoding;
      AlbaIntraRouteInversionMove[] moves = GenerateMoves(individual, ProblemInstance);
      Scope[] moveScopes = new Scope[moves.Length];
      for (int i = 0; i < moveScopes.Length; i++) {
        moveScopes[i] = new Scope(i.ToString());
        moveScopes[i].Variables.Add(new Variable(IntraRouteInversionMoveParameter.ActualName, moves[i]));
      }
      CurrentScopeParameter.ActualValue.SubScopes.AddRange(moveScopes);

      return next;
    }
  }
}