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source: trunk/sources/HeuristicLab.Encodings.BinaryVectorEncoding/3.3/Crossovers/MultiBinaryVectorCrossover.cs @ 4722

Last change on this file since 4722 was 4722, checked in by swagner, 14 years ago

Merged cloning refactoring branch back into trunk (#922)

File size: 4.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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 System;
23using System.Linq;
24using HeuristicLab.Collections;
25using HeuristicLab.Common;
26using HeuristicLab.Core;
27using HeuristicLab.Operators;
28using HeuristicLab.Optimization;
29using HeuristicLab.Parameters;
30using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
31using HeuristicLab.PluginInfrastructure;
32
33namespace HeuristicLab.Encodings.BinaryVectorEncoding {
34  [Item("MultiBinaryVectorCrossover", "Randomly selects and applies one of its crossovers every time it is called.")]
35  [StorableClass]
36  public class MultiBinaryVectorCrossover : StochasticMultiBranch<IBinaryVectorCrossover>, IBinaryVectorCrossover, IStochasticOperator {
37    public override bool CanChangeName {
38      get { return false; }
39    }
40    protected override bool CreateChildOperation {
41      get { return true; }
42    }
43
44    public ILookupParameter<ItemArray<BinaryVector>> ParentsParameter {
45      get { return (ILookupParameter<ItemArray<BinaryVector>>)Parameters["Parents"]; }
46    }
47
48    public ILookupParameter<BinaryVector> ChildParameter {
49      get { return (ILookupParameter<BinaryVector>)Parameters["Child"]; }
50    }
51
52    [StorableConstructor]
53    protected MultiBinaryVectorCrossover(bool deserializing) : base(deserializing) { }
54    protected MultiBinaryVectorCrossover(MultiBinaryVectorCrossover original, Cloner cloner) : base(original, cloner) { }
55    public MultiBinaryVectorCrossover()
56      : base() {
57      Parameters.Add(new ScopeTreeLookupParameter<BinaryVector>("Parents", "The parent binary vector which should be crossed."));
58      ParentsParameter.ActualName = "BinaryVector";
59      Parameters.Add(new LookupParameter<BinaryVector>("Child", "The child binary vector resulting from the crossover."));
60      ChildParameter.ActualName = "BinaryVector";
61
62      foreach (Type type in ApplicationManager.Manager.GetTypes(typeof(IBinaryVectorCrossover))) {
63        if (!typeof(MultiOperator<IBinaryVectorCrossover>).IsAssignableFrom(type))
64          Operators.Add((IBinaryVectorCrossover)Activator.CreateInstance(type), true);
65      }
66    }
67
68    public override IDeepCloneable Clone(Cloner cloner) {
69      return new MultiBinaryVectorCrossover(this, cloner);
70    }
71
72    protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<IBinaryVectorCrossover>> e) {
73      base.Operators_ItemsReplaced(sender, e);
74      ParameterizeCrossovers();
75    }
76
77    protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<IBinaryVectorCrossover>> e) {
78      base.Operators_ItemsAdded(sender, e);
79      ParameterizeCrossovers();
80    }
81
82    private void ParameterizeCrossovers() {
83      foreach (IBinaryVectorCrossover crossover in Operators.OfType<IBinaryVectorCrossover>()) {
84        crossover.ChildParameter.ActualName = ChildParameter.Name;
85        crossover.ParentsParameter.ActualName = ParentsParameter.Name;
86      }
87      foreach (IStochasticOperator crossover in Operators.OfType<IStochasticOperator>()) {
88        crossover.RandomParameter.ActualName = RandomParameter.Name;
89      }
90    }
91
92    public override IOperation Apply() {
93      if (Operators.Count == 0) throw new InvalidOperationException(Name + ": Please add at least one binary vector crossover to choose from.");
94      return base.Apply();
95    }
96  }
97}
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