source: branches/2839_HiveProjectManagement/HeuristicLab.Encodings.LinearLinkageEncoding/3.4/Manipulators/MultiLLEManipulator.cs @ 16057

Last change on this file since 16057 was 16057, checked in by jkarder, 16 months ago

#2839:

File size: 3.9 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.Collections.Generic;
24using System.Linq;
25using System.Reflection;
26using HeuristicLab.Collections;
27using HeuristicLab.Common;
28using HeuristicLab.Core;
29using HeuristicLab.Operators;
30using HeuristicLab.Optimization;
31using HeuristicLab.Parameters;
32using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
33using HeuristicLab.PluginInfrastructure;
34
35namespace HeuristicLab.Encodings.LinearLinkageEncoding {
36  [Item("Multi LLE Manipulator", "Randomly selects and applies one of its manipulators every time it is called.")]
37  [StorableClass]
38  public class MultiLinearLinkageManipulator : StochasticMultiBranch<ILinearLinkageManipulator>, ILinearLinkageManipulator, IStochasticOperator {
39    public override bool CanChangeName {
40      get { return false; }
41    }
42    protected override bool CreateChildOperation {
43      get { return true; }
44    }
45
46    public ILookupParameter<LinearLinkage> LLEParameter {
47      get { return (ILookupParameter<LinearLinkage>)Parameters["LLE"]; }
48    }
49
50    [StorableConstructor]
51    protected MultiLinearLinkageManipulator(bool deserializing) : base(deserializing) { }
52    protected MultiLinearLinkageManipulator(MultiLinearLinkageManipulator original, Cloner cloner) : base(original, cloner) { }
53    public MultiLinearLinkageManipulator()
54      : base() {
55      Parameters.Add(new LookupParameter<LinearLinkage>("LLE", "The encoding vector that is to be manipulated."));
56      foreach (Type type in ApplicationManager.Manager.GetTypes(typeof(ILinearLinkageManipulator), typeof(LinearLinkageEncoding).Assembly)) {
57        if (!typeof(MultiOperator<ILinearLinkageManipulator>).IsAssignableFrom(type))
58          Operators.Add((ILinearLinkageManipulator)Activator.CreateInstance(type), true);
59      }
60      SelectedOperatorParameter.ActualName = "SelectedManipulationOperator";
61    }
62
63    public override IDeepCloneable Clone(Cloner cloner) {
64      return new MultiLinearLinkageManipulator(this, cloner);
65    }
66
67    protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<ILinearLinkageManipulator>> e) {
68      base.Operators_ItemsReplaced(sender, e);
69      ParameterizeManipulators(e.Items);
70    }
71
72    protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<ILinearLinkageManipulator>> e) {
73      base.Operators_ItemsAdded(sender, e);
74      ParameterizeManipulators(e.Items);
75    }
76
77    private void ParameterizeManipulators(IEnumerable<IndexedItem<ILinearLinkageManipulator>> manipulators) {
78      foreach (var m in manipulators.Select(x => x.Value)) {
79        m.LLEParameter.ActualName = LLEParameter.Name;
80        var stOp = m as IStochasticOperator;
81        if (stOp != null) stOp.RandomParameter.ActualName = RandomParameter.Name;
82      }
83    }
84
85    public override IOperation InstrumentedApply() {
86      if (Operators.Count == 0) throw new InvalidOperationException(Name + ": Please add at least one LLE manipulator to choose from.");
87      return base.InstrumentedApply();
88    }
89  }
90}
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