1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 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 System.Text;
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26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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27 | using HeuristicLab.Core;
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28 | using HeuristicLab.Optimization;
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29 | using HeuristicLab.Data;
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30 | using HeuristicLab.Parameters;
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31 | using HeuristicLab.Problems.VehicleRouting.Interfaces;
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32 | using HeuristicLab.Common;
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33 |
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34 | namespace HeuristicLab.Problems.VehicleRouting.Encodings.General {
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35 | [Item("VRPMoveMaker", "Performs a VRP move.")]
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36 | [StorableClass]
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37 | public abstract class VRPMoveMaker : VRPMoveOperator, IMoveMaker {
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38 | public ILookupParameter<DoubleValue> QualityParameter {
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39 | get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
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40 | }
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41 | public ILookupParameter<DoubleValue> MoveQualityParameter {
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42 | get { return (ILookupParameter<DoubleValue>)Parameters["MoveQuality"]; }
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43 | }
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44 | public ILookupParameter<DoubleValue> MovePenaltyParameter {
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45 | get { return (ILookupParameter<DoubleValue>)Parameters["MovePenalty"]; }
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46 | }
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47 |
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48 | [StorableConstructor]
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49 | protected VRPMoveMaker(bool deserializing) : base(deserializing) { }
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50 |
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51 | public VRPMoveMaker()
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52 | : base() {
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53 | Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the solution."));
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54 | Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The relative quality of the move."));
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55 | Parameters.Add(new LookupParameter<DoubleValue>("MovePenalty", "The penalty applied to the move."));
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56 | }
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57 |
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58 | protected VRPMoveMaker(VRPMoveMaker original, Cloner cloner)
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59 | : base(original, cloner) {
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60 | }
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61 |
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62 | protected abstract void PerformMove();
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63 |
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64 | private void UpdateMoveEvaluation() {
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65 | IVRPEvaluator evaluator = ProblemInstance.EvaluatorParameter.Value;
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66 | ICollection<IParameter> addedParameters = new List<IParameter>();
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67 |
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68 | try {
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69 | foreach (IParameter parameter in evaluator.Parameters) {
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70 | if (parameter is ILookupParameter
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71 | && parameter != evaluator.VRPToursParameter
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72 | && parameter != evaluator.ProblemInstanceParameter) {
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73 | ILookupParameter evaluatorParameter = parameter as ILookupParameter;
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74 |
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75 | string resultName = evaluatorParameter.ActualName;
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76 | if (!this.Parameters.Exists(p => p.Name == resultName)) {
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77 | ILookupParameter resultParameter = new LookupParameter<IItem>(resultName);
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78 | resultParameter.ExecutionContext = ExecutionContext;
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79 | this.Parameters.Add(resultParameter);
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80 | addedParameters.Add(resultParameter);
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81 | }
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82 |
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83 | string moveResultName = VRPMoveEvaluator.MovePrefix + resultName;
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84 | if (!this.Parameters.Exists(p => p.Name == moveResultName)) {
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85 | ILookupParameter moveResultParameter = new LookupParameter<IItem>(moveResultName);
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86 | moveResultParameter.ExecutionContext = ExecutionContext;
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87 | this.Parameters.Add(moveResultParameter);
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88 | addedParameters.Add(moveResultParameter);
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89 | }
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90 |
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91 | ILookupParameter result = Parameters[resultName] as ILookupParameter;
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92 | ILookupParameter moveResult = Parameters[moveResultName] as ILookupParameter;
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93 | result.ActualValue = moveResult.ActualValue.Clone() as IItem;
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94 | }
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95 | }
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96 | }
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97 | finally {
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98 | foreach(IParameter parameter in addedParameters) {
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99 | this.Parameters.Remove(parameter);
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100 | }
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101 | }
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102 | }
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103 |
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104 | public override IOperation Apply() {
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105 | PerformMove();
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106 | UpdateMoveEvaluation();
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107 |
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108 | return base.Apply();
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109 | }
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110 | }
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111 | }
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