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source: branches/HeuristicLab.EvolutionTracking/HeuristicLab.EvolutionTracking/3.4/Operators/BeforeManipulatorOperator.cs @ 10300

Last change on this file since 10300 was 10300, checked in by bburlacu, 10 years ago

#1772: Cleaned up the design of the generic genealogy analyzer and related classes, created generic genealogy graph view. Added instrumentation code to TravelingSalesmapProblem.cs allowing genealogy tracking. Merged trunk changes (instrumentation for multi operators).

File size: 2.9 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2014 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.Linq;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Parameters;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.EvolutionTracking {
29  [StorableClass]
30  [Item("AfterCrossoverOperator", "Performs an action after the crossover operator is applied.")]
31  public class BeforeManipulatorOperator<T> : EvolutionTrackingOperator
32    where T : class,IItem {
33
34    private const string ChildParameterName = "Child";
35    public ILookupParameter<T> ChildParameter;
36
37    protected BeforeManipulatorOperator(BeforeManipulatorOperator<T> original, Cloner cloner)
38      : base(original, cloner) {
39    }
40    public override IDeepCloneable Clone(Cloner cloner) {
41      return new BeforeManipulatorOperator<T>(this, cloner);
42    }
43
44    public BeforeManipulatorOperator() {
45      ChildParameter = new LookupParameter<T>(ChildParameterName);
46      Parameters.Add(ChildParameter);
47    }
48
49    public override IOperation Apply() {
50      if (GenealogyGraph.Contains(ChildParameter.ActualValue)) {
51        var child = ChildParameter.ActualValue;
52        var clone = (T)child.Clone();
53        var vChild = (IGenealogyGraphNode<T>)GenealogyGraph[child].Last();
54        var vClone = new GenealogyGraphNode<T> { Content = clone, Rank = vChild.Rank - 0.5 };
55        GenealogyGraph.AddVertex(vClone);
56        // adjust parent-child(clone) relationship in the graph
57        var parents = vChild.InArcs.Select(a => a.Source);
58        vChild.InArcs.Clear();
59        foreach (var p in parents) {
60          foreach (var a in p.OutArcs) {
61            if (a.Target == vChild)
62              a.Target = vClone;
63          }
64          vClone.AddReverseArc(p);
65        }
66        vChild.AddReverseArc(vClone);
67        vClone.AddForwardArc(vChild);
68      } else { // this needs to be checked
69        var vChild = new GenealogyGraphNode<T> { Content = ChildParameter.ActualValue, Rank = Generations.Value };
70        GenealogyGraph.AddVertex(vChild);
71      }
72      return base.Apply();
73    }
74  }
75}
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