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source: branches/SpectralKernelForGaussianProcesses/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Alba/Moves/ThreeOpt/AlbaStochasticTranslocationSingleMoveGenerator.cs @ 10479

Last change on this file since 10479 was 10479, checked in by gkronber, 10 years ago

#2124 merged all changes from trunk to prepare for trunk-reintegration

File size: 3.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Data;
25using HeuristicLab.Encodings.PermutationEncoding;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27using HeuristicLab.Problems.VehicleRouting.Interfaces;
28
29namespace HeuristicLab.Problems.VehicleRouting.Encodings.Alba {
30  [Item("AlbaStochasticTranslocationSingleMoveGenerator", "An operator which generates a single translocation move for a VRP representation.  It is implemented as described in Alba, E. and Dorronsoro, B. (2004). Solving the Vehicle Routing Problem by Using Cellular Genetic Algorithms.")]
31  [StorableClass]
32  public sealed class AlbaStochasticTranslocationSingleMoveGenerator : AlbaMoveGenerator, IAlbaTranslocationMoveOperator {
33    [Storable]
34    private TranslocationMoveGenerator generator = new StochasticTranslocationSingleMoveGenerator();
35
36    public ILookupParameter<TranslocationMove> TranslocationMoveParameter {
37      get {
38        return generator.TranslocationMoveParameter;
39      }
40    }
41
42    public override ILookupParameter VRPMoveParameter {
43      get { return TranslocationMoveParameter; }
44    }
45
46    public ILookupParameter<Permutation> PermutationParameter {
47      get {
48        return generator.PermutationParameter;
49      }
50    }
51
52    public IValueLookupParameter<IntValue> SampleSizeParameter {
53      get { return (IValueLookupParameter<IntValue>)Parameters["SampleSize"]; }
54    }
55
56    [StorableConstructor]
57    private AlbaStochasticTranslocationSingleMoveGenerator(bool deserializing) : base(deserializing) { }
58
59    public AlbaStochasticTranslocationSingleMoveGenerator()
60      : base() {
61    }
62
63    public override IDeepCloneable Clone(Cloner cloner) {
64      return new AlbaStochasticTranslocationSingleMoveGenerator(this, cloner);
65    }
66
67    private AlbaStochasticTranslocationSingleMoveGenerator(AlbaStochasticTranslocationSingleMoveGenerator original, Cloner cloner)
68      : base(original, cloner) {
69    }
70
71    public override IOperation InstrumentedApply() {
72      IOperation next = base.InstrumentedApply();
73
74      IVRPEncoding solution = VRPToursParameter.ActualValue;
75
76      generator.PermutationParameter.ActualName = VRPToursParameter.ActualName;
77      IAtomicOperation op = this.ExecutionContext.CreateChildOperation(generator);
78      op.Operator.Execute((IExecutionContext)op, CancellationToken);
79
80      foreach (IScope scope in this.ExecutionContext.Scope.SubScopes) {
81        IVariable moveVariable = scope.Variables[
82          TranslocationMoveParameter.ActualName];
83
84        if (moveVariable.Value is TranslocationMove &&
85          !(moveVariable.Value is AlbaTranslocationMove)) {
86          TranslocationMove move = moveVariable.Value as TranslocationMove;
87          moveVariable.Value =
88            new AlbaTranslocationMove(
89              move.Index1, move.Index2, move.Index3, solution as AlbaEncoding);
90        }
91      }
92
93      return next;
94    }
95  }
96}
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