source: branches/HeuristicLab.BinPacking/HeuristicLab.Problems.BinPacking/3.3/Encodings/PackingSequence/Moves/SequenceTabuMaker.cs @ 14128

Last change on this file since 14128 was 14128, checked in by gkronber, 5 years ago

#1966: refactoring of bin packing implementation

File size: 3.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 Joseph Helm and 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
22
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Encodings.PermutationEncoding;
26using HeuristicLab.Optimization.Operators;
27using HeuristicLab.Parameters;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29using HeuristicLab.Problems.BinPacking;
30
31namespace HeuristicLab.Encodings.PackingEncoding.PackingSequence {
32  [Item("Sequence tabu maker", "Declares a given Sequence move as tabu, by adding its attributes to the tabu list and also store the solution quality or the move quality (whichever is better).")]
33  [StorableClass]
34  public class SequenceTabuMaker : TabuMaker, IPackingSequenceMoveOperator {
35    public ILookupParameter<IPackingMove<Permutation>> PackingMoveParameter {
36      get { return (ILookupParameter<IPackingMove<Permutation>>)Parameters["PackingMove"]; }
37    }
38    public ILookupParameter<Permutation> PackingSequenceParameter {
39      get { return (ILookupParameter<Permutation>)Parameters["PackingSequence"]; }
40    }
41
42    [StorableConstructor]
43    protected SequenceTabuMaker(bool deserializing) : base(deserializing) { }
44    protected SequenceTabuMaker(SequenceTabuMaker original, Cloner cloner) : base(original, cloner) { }
45    public SequenceTabuMaker()
46      : base() {
47      Parameters.Add(new LookupParameter<IPackingMove<Permutation>>("PackingMove", "The move to evaluate."));
48      Parameters.Add(new LookupParameter<Permutation>("PackingSequence", "The solution to evaluate."));
49    }
50
51    public override IDeepCloneable Clone(Cloner cloner) {
52      return new SequenceTabuMaker(this, cloner);
53    }
54
55    protected override IItem GetTabuAttribute(bool maximization, double quality, double moveQuality) {
56      var move = PackingMoveParameter.ActualValue;
57      double baseQuality = moveQuality;
58      if (maximization && quality > moveQuality || !maximization && quality < moveQuality)
59        baseQuality = quality; // we make an uphill move, the lower bound is the solution quality
60
61      var sMove = move as SequenceMove;
62
63      if (sMove != null)
64        return sMove.GetAttribute(baseQuality);
65      else
66        return move.GetSolutionAfterMove();
67    }
68  }
69}
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