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source: stable/HeuristicLab.Optimization/3.3/BasicProblems/Operators/MultiEncodingCreator.cs @ 17111

Last change on this file since 17111 was 17111, checked in by abeham, 3 years ago

#2740: merged to stable (16782, 16783)

File size: 3.2 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2019 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 HEAL.Attic;
25using HeuristicLab.Common;
26using HeuristicLab.Core;
27using HeuristicLab.Parameters;
28
29namespace HeuristicLab.Optimization {
30  [Item("MultiEncodingCreator", "Contains solution creators that together create a multi-encoding.")]
31  [StorableType("E261B506-6F74-4BC4-8164-5ACE20FBC319")]
32  public sealed class MultiEncodingCreator : MultiEncodingOperator<ISolutionCreator>, ISolutionCreator, IStochasticOperator {
33    public ILookupParameter<IRandom> RandomParameter {
34      get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
35    }
36
37    public override string OperatorPrefix => "Creator";
38
39    [StorableConstructor]
40    private MultiEncodingCreator(StorableConstructorFlag _) : base(_) { }
41
42    private MultiEncodingCreator(MultiEncodingCreator original, Cloner cloner) : base(original, cloner) { }
43    public MultiEncodingCreator() {
44      Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator used by the individual operators."));
45    }
46
47    public override IDeepCloneable Clone(Cloner cloner) {
48      return new MultiEncodingCreator(this, cloner);
49    }
50
51    [StorableHook(HookType.AfterDeserialization)]
52    private void AfterDeserialization() {
53      if (!Parameters.ContainsKey("Random")) {
54        Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator used by the individual operators."));
55      }
56    }
57
58    public override void AddEncoding(IEncoding encoding) {
59      base.AddEncoding(encoding);
60      var parameter = GetParameter(encoding);
61      parameter.Value = encoding.SolutionCreator;
62      encoding.SolutionCreatorChanged += Encoding_SolutionCreatorChanged;
63    }
64
65    public override bool RemoveEncoding(IEncoding encoding) {
66      var success = base.RemoveEncoding(encoding);
67      encoding.SolutionCreatorChanged -= Encoding_SolutionCreatorChanged;
68      return success;
69    }
70
71    private void Encoding_SolutionCreatorChanged(object sender, EventArgs e) {
72      var encoding = (IEncoding)sender;
73      var parameter = GetParameter(encoding);
74
75      var oldCreator = parameter.ValidValues.Single(creator => creator.GetType() == encoding.SolutionCreator.GetType());
76      parameter.ValidValues.Remove(oldCreator);
77      parameter.ValidValues.Add(encoding.SolutionCreator);
78      parameter.Value = encoding.SolutionCreator;
79    }
80  }
81}
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