source: branches/2839_HiveProjectManagement/HeuristicLab.Encodings.IntegerVectorEncoding/3.3/Crossovers/MultiIntegerVectorCrossover.cs @ 16057

Last change on this file since 16057 was 16057, checked in by jkarder, 15 months ago

#2839:

File size: 4.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 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.Data;
28using HeuristicLab.Operators;
29using HeuristicLab.Optimization;
30using HeuristicLab.Parameters;
31using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
32using HeuristicLab.PluginInfrastructure;
33
34namespace HeuristicLab.Encodings.IntegerVectorEncoding {
35  [Item("MultiIntegerVectorCrossover", "Randomly selects and applies one of its crossovers every time it is called.")]
36  [StorableClass]
37  public class MultiIntegerVectorCrossover : StochasticMultiBranch<IIntegerVectorCrossover>, IIntegerVectorCrossover, IStochasticOperator, IBoundedIntegerVectorOperator {
38    public override bool CanChangeName {
39      get { return false; }
40    }
41    protected override bool CreateChildOperation {
42      get { return true; }
43    }
44
45    public IValueLookupParameter<IntMatrix> BoundsParameter {
46      get { return (IValueLookupParameter<IntMatrix>)Parameters["Bounds"]; }
47    }
48
49    public ILookupParameter<ItemArray<IntegerVector>> ParentsParameter {
50      get { return (ILookupParameter<ItemArray<IntegerVector>>)Parameters["Parents"]; }
51    }
52
53    public ILookupParameter<IntegerVector> ChildParameter {
54      get { return (ILookupParameter<IntegerVector>)Parameters["Child"]; }
55    }
56
57    [StorableConstructor]
58    protected MultiIntegerVectorCrossover(bool deserializing) : base(deserializing) { }
59    protected MultiIntegerVectorCrossover(MultiIntegerVectorCrossover original, Cloner cloner) : base(original, cloner) { }
60    public MultiIntegerVectorCrossover()
61      : base() {
62      Parameters.Add(new ValueLookupParameter<IntMatrix>("Bounds", "The bounds matrix can contain one row for each dimension with three columns specifying minimum (inclusive), maximum (exclusive), and step size. If less rows are given the matrix is cycled."));
63      Parameters.Add(new ScopeTreeLookupParameter<IntegerVector>("Parents", "The parent integer vector which should be crossed."));
64      ParentsParameter.ActualName = "IntegerVector";
65      Parameters.Add(new LookupParameter<IntegerVector>("Child", "The child integer vector resulting from the crossover."));
66      ChildParameter.ActualName = "IntegerVector";
67
68      foreach (Type type in ApplicationManager.Manager.GetTypes(typeof(IIntegerVectorCrossover))) {
69        if (!typeof(MultiOperator<IIntegerVectorCrossover>).IsAssignableFrom(type))
70          Operators.Add((IIntegerVectorCrossover)Activator.CreateInstance(type), true);
71      }
72
73      SelectedOperatorParameter.ActualName = "SelectedCrossoverOperator";
74    }
75
76    public override IDeepCloneable Clone(Cloner cloner) {
77      return new MultiIntegerVectorCrossover(this, cloner);
78    }
79
80    protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<IIntegerVectorCrossover>> e) {
81      base.Operators_ItemsReplaced(sender, e);
82      ParameterizeCrossovers();
83    }
84
85    protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<IIntegerVectorCrossover>> e) {
86      base.Operators_ItemsAdded(sender, e);
87      ParameterizeCrossovers();
88    }
89
90    private void ParameterizeCrossovers() {
91      foreach (IIntegerVectorCrossover crossover in Operators.OfType<IIntegerVectorCrossover>()) {
92        crossover.ChildParameter.ActualName = ChildParameter.Name;
93        crossover.ParentsParameter.ActualName = ParentsParameter.Name;
94      }
95      foreach (IStochasticOperator crossover in Operators.OfType<IStochasticOperator>()) {
96        crossover.RandomParameter.ActualName = RandomParameter.Name;
97      }
98      foreach (IBoundedIntegerVectorOperator crossover in Operators.OfType<IBoundedIntegerVectorOperator>()) {
99        crossover.BoundsParameter.ActualName = BoundsParameter.Name;
100      }
101    }
102
103    public override IOperation InstrumentedApply() {
104      if (Operators.Count == 0) throw new InvalidOperationException(Name + ": Please add at least one integer vector crossover to choose from.");
105      return base.InstrumentedApply();
106    }
107  }
108}
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