1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Collections.Generic;
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24 | using System.Linq;
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25 | using HeuristicLab.Common;
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26 | using HeuristicLab.Core;
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27 | using HeuristicLab.Data;
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28 | using HeuristicLab.Encodings.BinaryVectorEncoding;
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29 | using HeuristicLab.Parameters;
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30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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31 | using HeuristicLab.PluginInfrastructure;
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32 |
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33 | namespace HeuristicLab.Problems.Programmable {
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34 | [Item("BinaryEncoding", "Describes a binary vector encoding.")]
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35 | [StorableClass]
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36 | public sealed class BinaryEncoding : Encoding<IBinaryVectorCreator> {
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37 | #region Encoding Parameters
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38 | [Storable]
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39 | private IFixedValueParameter<IntValue> lengthParameter;
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40 | public IFixedValueParameter<IntValue> LengthParameter {
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41 | get { return lengthParameter; }
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42 | set {
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43 | if (value == null) throw new ArgumentNullException("Length parameter must not be null.");
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44 | if (value.Value == null) throw new ArgumentNullException("Length parameter value must not be null.");
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45 | if (lengthParameter == value) return;
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46 |
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47 | if (lengthParameter != null) Parameters.Remove(lengthParameter);
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48 | lengthParameter = value;
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49 | Parameters.Add(lengthParameter);
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50 | OnLengthParameterChanged();
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51 | }
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52 | }
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53 | #endregion
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54 |
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55 | public int Length {
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56 | get { return LengthParameter.Value.Value; }
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57 | set { LengthParameter.Value.Value = value; }
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58 | }
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59 |
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60 | [StorableConstructor]
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61 | private BinaryEncoding(bool deserializing) : base(deserializing) { }
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62 | [StorableHook(HookType.AfterDeserialization)]
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63 | private void AfterDeserialization() {
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64 | RegisterParameterEvents();
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65 | DiscoverOperators();
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66 | }
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67 | public override IDeepCloneable Clone(Cloner cloner) { return new BinaryEncoding(this, cloner); }
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68 | private BinaryEncoding(BinaryEncoding original, Cloner cloner)
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69 | : base(original, cloner) {
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70 | lengthParameter = cloner.Clone(original.lengthParameter);
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71 | RegisterParameterEvents();
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72 | }
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73 |
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74 | public BinaryEncoding() : this("BinaryVector", 10) { }
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75 | public BinaryEncoding(int length) : this("BinaryVector", length) { }
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76 | public BinaryEncoding(string name, int length)
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77 | : base(name) {
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78 | lengthParameter = new FixedValueParameter<IntValue>(Name + ".Length", new IntValue(length));
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79 | Parameters.Add(lengthParameter);
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80 |
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81 | SolutionCreator = new RandomBinaryVectorCreator();
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82 | RegisterParameterEvents();
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83 | DiscoverOperators();
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84 | }
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85 |
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86 | private void OnLengthParameterChanged() {
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87 | RegisterLengthParameterEvents();
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88 | ConfigureOperators(Operators);
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89 | }
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90 | private void RegisterParameterEvents() {
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91 | RegisterLengthParameterEvents();
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92 | }
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93 | private void RegisterLengthParameterEvents() {
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94 | LengthParameter.ValueChanged += (o, s) => ConfigureOperators(Operators);
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95 | LengthParameter.Value.ValueChanged += (o, s) => ConfigureOperators(Operators);
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96 | }
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97 |
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98 | #region Operator Discovery
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99 | private static readonly IEnumerable<Type> encodingSpecificOperatorTypes;
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100 | static BinaryEncoding() {
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101 | encodingSpecificOperatorTypes = new List<Type>() {
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102 | typeof (IBinaryVectorOperator),
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103 | typeof (IBinaryVectorCreator),
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104 | typeof (IBinaryVectorCrossover),
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105 | typeof (IBinaryVectorManipulator),
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106 | typeof (IBinaryVectorMoveOperator),
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107 | typeof (IBinaryVectorMultiNeighborhoodShakingOperator),
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108 | };
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109 | }
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110 | private void DiscoverOperators() {
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111 | var assembly = typeof(IBinaryVectorOperator).Assembly;
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112 | var discoveredTypes = ApplicationManager.Manager.GetTypes(encodingSpecificOperatorTypes, assembly, true, false, false);
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113 | var operators = discoveredTypes.Select(t => (IOperator)Activator.CreateInstance(t));
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114 | var newOperators = operators.Except(Operators, new TypeEqualityComparer<IOperator>()).ToList();
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115 |
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116 | ConfigureOperators(newOperators);
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117 | foreach (var @operator in newOperators)
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118 | encodingOperators.Add(@operator);
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119 | }
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120 | #endregion
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121 |
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122 | public override void ConfigureOperators(IEnumerable<IOperator> operators) {
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123 | ConfigureCreators(operators.OfType<IBinaryVectorCreator>());
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124 | ConfigureCrossovers(operators.OfType<IBinaryVectorCrossover>());
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125 | ConfigureManipulators(operators.OfType<IBinaryVectorManipulator>());
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126 | ConfigureMoveOperators(operators.OfType<IBinaryVectorMoveOperator>());
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127 | ConfigureBitFlipMoveOperators(operators.OfType<IOneBitflipMoveOperator>());
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128 | ConfigureShakingOperators(operators.OfType<IBinaryVectorMultiNeighborhoodShakingOperator>());
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129 | }
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130 |
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131 | #region Specific Operator Wiring
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132 | private void ConfigureCreators(IEnumerable<IBinaryVectorCreator> creators) {
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133 | foreach (var creator in creators) {
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134 | creator.BinaryVectorParameter.ActualName = Name;
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135 | creator.LengthParameter.ActualName = LengthParameter.Name;
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136 | }
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137 | }
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138 | private void ConfigureCrossovers(IEnumerable<IBinaryVectorCrossover> crossovers) {
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139 | foreach (var crossover in crossovers) {
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140 | crossover.ParentsParameter.ActualName = Name;
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141 | crossover.ChildParameter.ActualName = Name;
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142 | }
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143 | }
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144 | private void ConfigureManipulators(IEnumerable<IBinaryVectorManipulator> manipulators) {
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145 | foreach (var manipulator in manipulators) {
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146 | manipulator.BinaryVectorParameter.ActualName = Name;
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147 | }
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148 | }
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149 | private void ConfigureMoveOperators(IEnumerable<IBinaryVectorMoveOperator> moveOperators) {
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150 | foreach (var moveOperator in moveOperators) {
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151 | moveOperator.BinaryVectorParameter.ActualName = Name;
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152 | }
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153 | }
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154 | private void ConfigureBitFlipMoveOperators(IEnumerable<IOneBitflipMoveOperator> oneBitflipMoveOperators) {
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155 | foreach (var oneBitFlipMoveOperator in oneBitflipMoveOperators) {
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156 | oneBitFlipMoveOperator.OneBitflipMoveParameter.ActualName = Name + "_OneBitFlipMove";
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157 | }
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158 | }
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159 | private void ConfigureShakingOperators(IEnumerable<IBinaryVectorMultiNeighborhoodShakingOperator> shakingOperators) {
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160 | foreach (var shakingOperator in shakingOperators) {
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161 | shakingOperator.BinaryVectorParameter.ActualName = Name;
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162 | }
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163 | }
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164 | #endregion
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165 | }
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166 | }
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