1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2016 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.Drawing;
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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.PermutationEncoding;
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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 | using HeuristicLab.Problems.Instances;
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33 | using HeuristicLab.Optimization;
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34 | using System.Collections.Generic;
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35 |
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36 | namespace HeuristicLab.Problems.PFSP
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37 | {
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38 | [Item("Permutation Flowshop Scheduling Problem (PFSP)", "Represents a Permutation Flowshop Scheduling Problem")]
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39 | [Creatable(CreatableAttribute.Categories.CombinatorialProblems, Priority = 999)]
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40 | [StorableClass]
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41 | public sealed class PermutationFlowshopSchedulingProblem : SingleObjectiveHeuristicOptimizationProblem<IPFSPEvaluator, IPermutationCreator>, IProblemInstanceConsumer<FSSPData>, IProblemInstanceExporter<FSSPData>, IStorableContent
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42 | {
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43 | #region Default Instance
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44 | private static readonly FSSPData DefaultInstance = new FSSPData()
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45 | {
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46 | Name = "Permutation Flowshop Scheduling Problem (PFSP)",
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47 | Description = "The default instance of the PFSP problem in HeuristicLab",
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48 | Jobs = 4,
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49 | Machines = 4,
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50 | //BestKnownQuality = 328,
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51 | ProcessingTimes = new double[,] {
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52 | {5 ,3, 6 ,6 },
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53 | {2 ,4, 8 ,4},
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54 | {4 ,2, 7 ,4},
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55 | {5 ,3, 8 ,6}
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56 | }
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57 | };
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58 | #endregion
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59 |
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60 | public string Filename { get; set; }
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61 |
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62 | #region Parameter Properties
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63 | public OptionalValueParameter<Permutation> BestKnownSolutionParameter
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64 | {
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65 | get { return (OptionalValueParameter<Permutation>)Parameters["BestKnownSolution"]; }
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66 | }
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67 |
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68 | public OptionalValueParameter<JobMatrix> JobMatrixParameter
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69 | {
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70 | get { return (OptionalValueParameter<JobMatrix>)Parameters["JobMatrix"]; }
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71 | }
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72 | #endregion
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73 |
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74 | #region Properties
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75 | public Permutation BestKnownSolution
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76 | {
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77 | get { return BestKnownSolutionParameter.Value; }
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78 | set
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79 | {
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80 | BestKnownSolutionParameter.Value = value;
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81 | if (BestKnownSolutionChanged != null) { OnBestKnownSolutionChanged(); }
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82 | }
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83 | }
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84 | public JobMatrix JobMatrix
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85 | {
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86 | get { return JobMatrixParameter.Value; }
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87 | set { JobMatrixParameter.Value = value; }
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88 | }
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89 | #endregion
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90 |
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91 | public event EventHandler BestKnownSolutionChanged;
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92 | private void OnBestKnownSolutionChanged()
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93 | {
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94 | var changed = BestKnownSolutionChanged;
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95 | if (changed != null)
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96 | changed(this, EventArgs.Empty);
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97 | }
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98 |
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99 | // BackwardsCompatibility3.3
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100 | #region Backwards compatible code, remove with 3.4
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101 | [Obsolete]
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102 | [Storable(Name = "operators")]
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103 | private IEnumerable<IOperator> oldOperators
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104 | {
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105 | get { return null; }
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106 | set
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107 | {
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108 | if (value != null && value.Any())
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109 | Operators.AddRange(value);
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110 | }
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111 | }
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112 | #endregion
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113 |
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114 | [StorableConstructor]
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115 | private PermutationFlowshopSchedulingProblem(bool deserializing) : base(deserializing) { }
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116 | private PermutationFlowshopSchedulingProblem(PermutationFlowshopSchedulingProblem original, Cloner cloner)
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117 | : base(original, cloner)
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118 | {
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119 | RegisterEventHandlers();
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120 | }
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121 | public PermutationFlowshopSchedulingProblem()
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122 | : base(new AwesomeMakeSpanEvaluator(), new RandomPermutationCreator())
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123 | {
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124 | Parameters.Add(new OptionalValueParameter<Permutation>("BestKnownSolution", "The best known solution of this FSSP instance."));
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125 | Parameters.Add(new OptionalValueParameter<JobMatrix>("JobMatrix", "The matrix which contains the jobs,machines and duration."));
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126 |
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127 | Load(DefaultInstance);
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128 | EvaluatorParameter.GetsCollected = false;
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129 | EvaluatorParameter.Hidden = true;
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130 |
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131 | Maximization.Value = false;
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132 | MaximizationParameter.Hidden = true;
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133 |
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134 | SolutionCreator.PermutationParameter.ActualName = "PFSPOrder";
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135 | Evaluator.QualityParameter.ActualName = "Makespan";
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136 | ParameterizeSolutionCreator();
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137 | ParameterizeEvaluator();
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138 |
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139 | InitializeOperators();
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140 | RegisterEventHandlers();
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141 | }
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142 |
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143 | public override IDeepCloneable Clone(Cloner cloner)
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144 | {
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145 | return new PermutationFlowshopSchedulingProblem(this, cloner);
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146 | }
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147 |
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148 | [StorableHook(HookType.AfterDeserialization)]
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149 | private void AfterDeserialization()
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150 | {
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151 | RegisterEventHandlers();
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152 | }
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153 |
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154 | private void RegisterEventHandlers()
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155 | {
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156 | SolutionCreator.PermutationParameter.ActualNameChanged += new EventHandler(SolutionCreator_PermutationParameter_ActualNameChanged);
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157 | Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
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158 | }
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159 |
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160 | private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e)
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161 | {
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162 | //Nothing to do ParameterizeAnalyzers();
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163 | }
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164 |
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165 | private void SolutionCreator_PermutationParameter_ActualNameChanged(object sender, EventArgs e)
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166 | {
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167 | ParameterizeEvaluator();
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168 | //ParameterizeAnalyzers();
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169 | ParameterizeOperators();
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170 | }
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171 |
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172 | #region Events
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173 | private void ScheduleEvaluator_QualityParameter_ActualNameChanged(object sender, EventArgs eventArgs)
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174 | {
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175 | ParameterizeOperators();
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176 | }
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177 |
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178 | private void SolutionCreator_SchedulingEncodingParameter_ActualNameChanged(object sender, EventArgs eventArgs)
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179 | {
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180 | ParameterizeOperators();
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181 | }
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182 |
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183 | private void ScheduleDecoder_ScheduleParameter_ActualNameChanged(object sender, EventArgs eventArgs)
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184 | {
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185 | ParameterizeOperators();
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186 | }
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187 | #endregion
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188 |
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189 | #region Problem Instance Handling
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190 | public void Load(FSSPData data)
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191 | {
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192 |
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193 | BestKnownQuality = data.BestKnownQuality.HasValue ? new DoubleValue(data.BestKnownQuality.Value) : null;
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194 | Name = data.Name;
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195 | Description = data.Description;
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196 | JobMatrix = new JobMatrix(data.ProcessingTimes);
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197 |
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198 | if (data.BestKnownSchedule != null)
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199 | {
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200 | int[] permut = data.BestKnownSchedule;
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201 | //Clean up if the first index = 1
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202 | if (!permut.Contains(0)) { permut = permut.Select(v => v - 1).ToArray(); }
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203 | double bestKnownQuality = MakeSpanEvaluator.Apply(
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204 | new AwesomeMakeSpanEvaluator(),
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205 | new DoubleMatrix(data.ProcessingTimes),
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206 | new Permutation(PermutationTypes.Absolute, permut)
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207 | );
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208 |
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209 | BestKnownSolution = new Permutation(PermutationTypes.Absolute, data.BestKnownSchedule);
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210 | BestKnownQuality = new DoubleValue(bestKnownQuality);
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211 | }
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212 |
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213 | ParameterizeSolutionCreator();
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214 | }
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215 |
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216 | public FSSPData Export()
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217 | {
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218 | var result = new FSSPData
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219 | {
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220 | Name = Name,
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221 | Description = Description,
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222 | ProcessingTimes = new double[JobMatrix.Rows, JobMatrix.Columns]
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223 | };
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224 |
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225 | if (BestKnownQuality != null)
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226 | {
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227 | result.BestKnownQuality = BestKnownQuality.Value;
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228 | }
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229 |
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230 | if (JobMatrix != null)
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231 | {
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232 | result.Jobs = JobMatrix.Rows;
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233 | result.Machines = JobMatrix.Columns;
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234 | }
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235 |
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236 | for (int i = 0; i < JobMatrix.Rows; i++)
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237 | {
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238 | for (int j = 0; j < JobMatrix.Columns; j++)
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239 | {
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240 | result.ProcessingTimes[i, j] = JobMatrix[i, j];
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241 | }
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242 | }
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243 |
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244 | result.BestKnownSchedule = BestKnownSolution != null ? (BestKnownSolution as IntArray).ToArray() : null;
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245 |
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246 | return result;
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247 | }
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248 | #endregion
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249 |
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250 | #region Helpers
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251 | private void InitializeOperators()
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252 | {
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253 | var operators = new HashSet<IPermutationOperator>(new IPermutationOperator[] {
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254 | new OrderCrossover2(),
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255 | new InversionManipulator(),
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256 | new StochasticInversionMultiMoveGenerator()
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257 | }, new TypeEqualityComparer<IPermutationOperator>());
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258 |
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259 | foreach (var op in ApplicationManager.Manager.GetInstances<IPermutationOperator>())
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260 | operators.Add(op);
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261 | Operators.AddRange(operators);
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262 | Operators.Add(new BestTSPSolutionAnalyzer());
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263 | ParameterizeOperators();
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264 | UpdateMoveEvaluators();
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265 | }
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266 |
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267 |
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268 | private void ParameterizeOperators()
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269 | {
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270 | foreach (IPermutationCrossover op in Operators.OfType<IPermutationCrossover>())
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271 | {
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272 | op.ParentsParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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273 | op.ParentsParameter.Hidden = true;
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274 | op.ChildParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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275 | op.ChildParameter.Hidden = true;
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276 | }
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277 | foreach (IPermutationManipulator op in Operators.OfType<IPermutationManipulator>())
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278 | {
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279 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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280 | op.PermutationParameter.Hidden = true;
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281 | }
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282 | foreach (IPermutationMoveOperator op in Operators.OfType<IPermutationMoveOperator>())
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283 | {
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284 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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285 | op.PermutationParameter.Hidden = true;
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286 | }
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287 | foreach (IPermutationMultiNeighborhoodShakingOperator op in Operators.OfType<IPermutationMultiNeighborhoodShakingOperator>())
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288 | {
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289 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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290 | op.PermutationParameter.Hidden = true;
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291 | }
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292 | foreach (ISingleObjectiveImprovementOperator op in Operators.OfType<ISingleObjectiveImprovementOperator>())
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293 | {
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294 | op.SolutionParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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295 | op.SolutionParameter.Hidden = true;
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296 | }
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297 | foreach (ISingleObjectivePathRelinker op in Operators.OfType<ISingleObjectivePathRelinker>())
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298 | {
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299 | op.ParentsParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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300 | op.ParentsParameter.Hidden = true;
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301 | }
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302 | foreach (ISolutionSimilarityCalculator op in Operators.OfType<ISolutionSimilarityCalculator>())
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303 | {
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304 | op.SolutionVariableName = SolutionCreator.PermutationParameter.ActualName;
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305 | op.QualityVariableName = Evaluator.QualityParameter.ActualName;
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306 | }
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307 | }
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308 | #endregion
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309 |
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310 | private void UpdateMoveEvaluators()
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311 | {
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312 | Operators.RemoveAll(x => x is ISingleObjectiveMoveEvaluator);
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313 | foreach (var op in ApplicationManager.Manager.GetInstances<ISingleObjectiveMoveEvaluator>())
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314 | Operators.Add(op);
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315 |
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316 | ParameterizeOperators();
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317 | OnOperatorsChanged();
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318 | }
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319 |
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320 | private void ParameterizeSolutionCreator()
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321 | {
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322 | SolutionCreator.LengthParameter.Value = new IntValue(JobMatrix.Columns); //Jobs
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323 |
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324 | SolutionCreator.LengthParameter.Hidden = SolutionCreator.LengthParameter.Value != null;
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325 | SolutionCreator.PermutationTypeParameter.Value = new PermutationType(PermutationTypes.RelativeUndirected);
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326 | SolutionCreator.PermutationTypeParameter.Hidden = true;
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327 | }
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328 | private void ParameterizeEvaluator()
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329 | {
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330 | if (Evaluator is AwesomeMakeSpanEvaluator)
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331 | {
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332 | IMakespanEvaluator evaluator = (IMakespanEvaluator)Evaluator;
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333 | evaluator.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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334 | evaluator.PermutationParameter.Hidden = true;
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335 | }
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336 | }
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337 | }
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338 | }
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