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source: trunk/sources/HeuristicLab.Encodings.PermutationEncoding/3.3/Manipulators/MultiPermutationManipulator.cs @ 7259

Last change on this file since 7259 was 7259, checked in by swagner, 12 years ago

Updated year of copyrights to 2012 (#1716)

File size: 3.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 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.PermutationEncoding {
34  [Item("MultiPermutationManipulator", "Randomly selects and applies one of its manipulators every time it is called.")]
35  [StorableClass]
36  public class MultiPermutationManipulator : StochasticMultiBranch<IPermutationManipulator>, IPermutationManipulator, 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<Permutation> PermutationParameter {
45      get { return (ILookupParameter<Permutation>)Parameters["Permutation"]; }
46    }
47
48    [StorableConstructor]
49    protected MultiPermutationManipulator(bool deserializing) : base(deserializing) { }
50    protected MultiPermutationManipulator(MultiPermutationManipulator original, Cloner cloner) : base(original, cloner) { }
51    public MultiPermutationManipulator()
52      : base() {
53      Parameters.Add(new LookupParameter<Permutation>("Permutation", "The permutation that is being manipulated."));
54
55      foreach (Type type in ApplicationManager.Manager.GetTypes(typeof(IPermutationManipulator))) {
56        if (!typeof(MultiOperator<IPermutationManipulator>).IsAssignableFrom(type))
57          Operators.Add((IPermutationManipulator)Activator.CreateInstance(type), true);
58      }
59    }
60
61    public override IDeepCloneable Clone(Cloner cloner) {
62      return new MultiPermutationManipulator(this, cloner);
63    }
64
65    protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<IPermutationManipulator>> e) {
66      base.Operators_ItemsReplaced(sender, e);
67      ParameterizeManipulators();
68    }
69
70    protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<IPermutationManipulator>> e) {
71      base.Operators_ItemsAdded(sender, e);
72      ParameterizeManipulators();
73    }
74
75    private void ParameterizeManipulators() {
76      foreach (IPermutationManipulator manipulator in Operators.OfType<IPermutationManipulator>()) {
77        manipulator.PermutationParameter.ActualName = PermutationParameter.Name;
78      }
79      foreach (IStochasticOperator op in Operators.OfType<IStochasticOperator>()) {
80        op.RandomParameter.ActualName = RandomParameter.Name;
81      }
82    }
83
84    public override IOperation Apply() {
85      if (Operators.Count == 0) throw new InvalidOperationException(Name + ": Please add at least one permutation manipulator to choose from.");
86      return base.Apply();
87    }
88  }
89}
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