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source: trunk/sources/HeuristicLab.Encodings.LinearLinkageEncoding/3.3/LinearLinkageEncoding.cs @ 12939

Last change on this file since 12939 was 12650, checked in by abeham, 9 years ago

#2319: integrated into trunk

File size: 7.2 KB
RevLine 
[12285]1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 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 HeuristicLab.Common;
26using HeuristicLab.Core;
27using HeuristicLab.Data;
28using HeuristicLab.Optimization;
29using HeuristicLab.Parameters;
30using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
31using HeuristicLab.PluginInfrastructure;
32
33namespace HeuristicLab.Encodings.LinearLinkageEncoding {
[12288]34  [Item("Linear Linkage Encoding", "Describes a linear linkage (LLE) encoding.")]
[12285]35  [StorableClass]
36  public sealed class LinearLinkageEncoding : Encoding<ILinearLinkageCreator> {
37    #region encoding parameters
38    [Storable]
39    private IFixedValueParameter<IntValue> lengthParameter;
40    public IFixedValueParameter<IntValue> LengthParameter {
41      get { return lengthParameter; }
42      set {
43        if (value == null) throw new ArgumentNullException("Length parameter must not be null.");
44        if (value.Value == null) throw new ArgumentNullException("Length parameter value must not be null.");
45        if (lengthParameter == value) return;
46
47        if (lengthParameter != null) Parameters.Remove(lengthParameter);
48        lengthParameter = value;
49        Parameters.Add(lengthParameter);
50        OnLengthParameterChanged();
51      }
52    }
53    #endregion
54
55    public int Length {
56      get { return LengthParameter.Value.Value; }
57      set { LengthParameter.Value.Value = value; }
58    }
59
60    [StorableConstructor]
61    private LinearLinkageEncoding(bool deserializing) : base(deserializing) { }
62    [StorableHook(HookType.AfterDeserialization)]
63    private void AfterDeserialization() {
64      RegisterParameterEvents();
65      DiscoverOperators();
66    }
67
68    public override IDeepCloneable Clone(Cloner cloner) { return new LinearLinkageEncoding(this, cloner); }
69    private LinearLinkageEncoding(LinearLinkageEncoding original, Cloner cloner)
70      : base(original, cloner) {
71      lengthParameter = cloner.Clone(original.lengthParameter);
72      RegisterParameterEvents();
73    }
74
75
76    public LinearLinkageEncoding() : this("LLE", 10) { }
77    public LinearLinkageEncoding(string name) : this(name, 10) { }
78    public LinearLinkageEncoding(int length) : this("LLE", length) { }
79    public LinearLinkageEncoding(string name, int length)
80      : base(name) {
81      lengthParameter = new FixedValueParameter<IntValue>(Name + ".Length", new IntValue(length));
82      Parameters.Add(lengthParameter);
83
84      SolutionCreator = new RandomLinearLinkageCreator();
85      RegisterParameterEvents();
86      DiscoverOperators();
87    }
88
89    private void OnLengthParameterChanged() {
90      RegisterLengthParameterEvents();
91      ConfigureOperators(Operators);
92    }
93
94    private void RegisterParameterEvents() {
95      RegisterLengthParameterEvents();
96    }
97    private void RegisterLengthParameterEvents() {
98      LengthParameter.Value.ValueChanged += (o, s) => ConfigureOperators(Operators);
99    }
100
101    #region Operator Discovery
102    private static readonly IEnumerable<Type> encodingSpecificOperatorTypes;
103    static LinearLinkageEncoding() {
104      encodingSpecificOperatorTypes = new List<Type>() {
105          typeof (ILinearLinkageOperator),
106          typeof (ILinearLinkageCreator),
107          typeof (ILinearLinkageCrossover),
108          typeof (ILinearLinkageManipulator),
[12643]109          typeof (ILinearLinkageShakingOperator),
110          typeof (ILinearLinkageMoveOperator)
[12285]111      };
112    }
113    private void DiscoverOperators() {
114      var assembly = typeof(ILinearLinkageOperator).Assembly;
115      var discoveredTypes = ApplicationManager.Manager.GetTypes(encodingSpecificOperatorTypes, assembly, true, false, false);
116      var operators = discoveredTypes.Select(t => (IOperator)Activator.CreateInstance(t));
117      var newOperators = operators.Except(Operators, new TypeEqualityComparer<IOperator>()).ToList();
118
119      ConfigureOperators(newOperators);
120      foreach (var @operator in newOperators)
121        AddOperator(@operator);
122    }
123    #endregion
124
125    public override void ConfigureOperators(IEnumerable<IOperator> operators) {
126      ConfigureCreators(operators.OfType<ILinearLinkageCreator>());
127      ConfigureCrossovers(operators.OfType<ILinearLinkageCrossover>());
128      ConfigureManipulators(operators.OfType<ILinearLinkageManipulator>());
129      ConfigureShakingOperators(operators.OfType<ILinearLinkageShakingOperator>());
[12643]130      ConfigureMoveOperators(operators.OfType<ILinearLinkageMoveOperator>());
131      ConfigureSwap2MoveOperators(operators.OfType<ILinearLinkageSwap2MoveOperator>());
[12285]132    }
133
134    #region specific operator wiring
135    private void ConfigureCreators(IEnumerable<ILinearLinkageCreator> creators) {
136      foreach (var creator in creators) {
137        creator.LengthParameter.ActualName = LengthParameter.Name;
138        creator.LLEParameter.ActualName = Name;
139      }
140    }
141    private void ConfigureCrossovers(IEnumerable<ILinearLinkageCrossover> crossovers) {
142      foreach (var crossover in crossovers) {
143        crossover.ChildParameter.ActualName = Name;
144        crossover.ParentsParameter.ActualName = Name;
145      }
146    }
147    private void ConfigureManipulators(IEnumerable<ILinearLinkageManipulator> manipulators) {
148      foreach (var manipulator in manipulators) {
149        manipulator.LLEParameter.ActualName = Name;
150      }
151    }
152    private void ConfigureShakingOperators(IEnumerable<ILinearLinkageShakingOperator> shakingOperators) {
153      foreach (var shakingOperator in shakingOperators) {
154        shakingOperator.LLEParameter.ActualName = Name;
155      }
156    }
[12643]157    private void ConfigureMoveOperators(IEnumerable<ILinearLinkageMoveOperator> moveOperators) {
158      foreach (var moveOperator in moveOperators) {
159        moveOperator.LLEParameter.ActualName = Name;
160      }
161    }
162    private void ConfigureSwap2MoveOperators(IEnumerable<ILinearLinkageSwap2MoveOperator> swap2MoveOperators) {
163      foreach (var swap2MoveOperator in swap2MoveOperators) {
164        swap2MoveOperator.Swap2MoveParameter.ActualName = Name + ".Swap2Move";
165      }
166    }
[12285]167    #endregion
168  }
169
170  public static class IndividualExtensionMethods {
171    public static LinearLinkage LinearLinkage(this Individual individual) {
172      var encoding = individual.GetEncoding<LinearLinkageEncoding>();
173      return individual.LinearLinkage(encoding.Name);
174    }
175    public static LinearLinkage LinearLinkage(this Individual individual, string name) {
176      return (LinearLinkage)individual[name];
177    }
178  }
179}
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