[5112] | 1 | using System;
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| 2 | using System.Collections;
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| 3 | using System.Collections.Generic;
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| 4 | using System.Linq;
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| 5 | using HeuristicLab.Common;
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| 6 | using HeuristicLab.Core;
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| 7 | using HeuristicLab.Data;
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| 8 | using HeuristicLab.Parameters;
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| 9 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 10 | using HeuristicLab.PluginInfrastructure;
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[5144] | 11 | using System.Text;
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[5207] | 12 | using System.Reflection;
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[5231] | 13 | using HeuristicLab.Optimization;
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[5112] | 14 |
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| 15 | namespace HeuristicLab.Problems.MetaOptimization {
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| 16 | [StorableClass]
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| 17 | public class ParameterConfiguration : Item, IParameterConfiguration, IStorableContent {
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[5207] | 18 | public bool IsOptimizable {
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| 19 | get { return true; }
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[5112] | 20 | }
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| 21 |
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| 22 | [Storable]
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| 23 | public string Filename { get; set; }
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| 24 |
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| 25 | [Storable]
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| 26 | protected bool optimize;
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| 27 | public bool Optimize {
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| 28 | get { return optimize; }
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| 29 | set {
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| 30 | if (optimize != value) {
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| 31 | optimize = value;
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| 32 | if (optimize) {
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| 33 | PopulateValueConfigurations();
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| 34 | } else {
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| 35 | this.ValueConfigurations.Clear();
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| 36 | }
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| 37 | OnOptimizeChanged();
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| 38 | OnToStringChanged();
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| 39 | }
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| 40 | }
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| 41 | }
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| 42 |
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| 43 | [Storable]
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| 44 | protected string parameterName;
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| 45 | public string ParameterName {
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| 46 | get { return parameterName; }
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| 47 | set {
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| 48 | if (parameterName != value) {
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| 49 | parameterName = value;
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| 50 | OnToStringChanged();
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| 51 | }
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| 52 | }
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| 53 | }
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| 54 |
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| 55 | [Storable]
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| 56 | protected Type parameterDataType;
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| 57 | public Type ParameterDataType {
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| 58 | get { return this.parameterDataType; }
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| 59 | }
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| 60 |
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| 61 | [Storable]
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[5207] | 62 | protected Type[] validTypes;
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| 63 | public Type[] ValidTypes {
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| 64 | get { return validTypes; }
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[5112] | 65 | protected set {
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[5207] | 66 | if (this.validTypes != value) {
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| 67 | this.validTypes = value;
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[5112] | 68 | }
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| 69 | }
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| 70 | }
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| 71 |
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| 72 | [Storable]
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| 73 | protected Type valueDataType;
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| 74 | public Type ValueDataType {
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| 75 | get { return valueDataType; }
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| 76 | protected set { this.valueDataType = value; }
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| 77 | }
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| 78 |
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| 79 | [Storable]
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| 80 | protected ICheckedValueConfigurationCollection valueConfigurations;
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| 81 | public ICheckedValueConfigurationCollection ValueConfigurations {
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| 82 | get { return this.valueConfigurations; }
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| 83 | protected set {
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| 84 | if (this.valueConfigurations != value) {
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| 85 | if (this.valueConfigurations != null) DeregisterValueConfigurationEvents();
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| 86 | this.valueConfigurations = value;
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| 87 | if (this.valueConfigurations != null) RegisterValueConfigurationEvents();
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| 88 | }
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| 89 | }
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| 90 | }
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| 91 |
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| 92 | [Storable]
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| 93 | private int actualValueConfigurationIndex = 0;
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| 94 | public int ActualValueConfigurationIndex {
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| 95 | get { return actualValueConfigurationIndex; }
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| 96 | set { actualValueConfigurationIndex = value; }
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| 97 | }
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| 98 |
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| 99 | [Storable]
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| 100 | protected ConstrainedValue actualValue;
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| 101 | public ConstrainedValue ActualValue {
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| 102 | get { return actualValue; }
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| 103 | set {
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| 104 | if (actualValue != value) {
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| 105 | DeregisterActualValueEvents();
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| 106 | actualValue = value;
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| 107 | RegisterActualValueEvents();
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| 108 | }
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| 109 | }
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| 110 | }
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| 111 |
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| 112 | [Storable]
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| 113 | protected bool isNullable;
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| 114 | public bool IsNullable {
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| 115 | get { return isNullable; }
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| 116 | protected set {
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| 117 | if (this.isNullable != value) {
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| 118 | this.isNullable = value;
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| 119 | }
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| 120 | }
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| 121 | }
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| 122 |
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[5267] | 123 | [Storable]
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[5231] | 124 | protected IItemSet<IItem> validValues;
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| 125 |
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[5112] | 126 | #region Constructors and Cloning
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| 127 | public ParameterConfiguration(string parameterName, IValueParameter valueParameter) {
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| 128 | this.ParameterName = parameterName;
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| 129 | this.parameterDataType = valueParameter.GetType();
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| 130 | this.valueDataType = valueParameter.DataType;
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[5231] | 131 | this.validValues = GetValidValues(valueParameter);
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[5207] | 132 | this.validTypes = GetValidTypes(valueParameter).ToArray();
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[5112] | 133 | this.IsNullable = valueParameter.ItemName.StartsWith("Optional");
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| 134 | if (IsNullable) {
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[5207] | 135 | validTypes = new List<Type>(validTypes) { typeof(NullValue) }.ToArray();
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[5112] | 136 | }
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[5267] | 137 | this.ValueConfigurations = new CheckedValueConfigurationCollection();
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| 138 | this.ActualValue = new ConstrainedValue(
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| 139 | valueParameter.Value != null ? (IItem)valueParameter.Value.Clone() : null,
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| 140 | valueParameter.DataType,
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| 141 | this.validValues != null ? new ItemSet<IItem>(this.validValues) : CreateValidValues(),
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| 142 | this.IsNullable);
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[5112] | 143 | if (Optimize) {
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| 144 | PopulateValueConfigurations();
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| 145 | }
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| 146 | }
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| 147 |
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| 148 | public ParameterConfiguration() { }
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| 149 | [StorableConstructor]
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| 150 | protected ParameterConfiguration(bool deserializing) { }
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[5207] | 151 | protected ParameterConfiguration(ParameterConfiguration original, Cloner cloner)
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| 152 | : base(original, cloner) {
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[5112] | 153 | this.parameterName = original.ParameterName;
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| 154 | this.parameterDataType = original.parameterDataType;
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| 155 | this.valueDataType = original.ValueDataType;
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[5231] | 156 | this.validValues = cloner.Clone(original.validValues);
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[5207] | 157 | this.validTypes = original.validTypes.ToArray();
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[5112] | 158 | this.valueConfigurations = cloner.Clone(original.ValueConfigurations);
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| 159 | this.ActualValue = cloner.Clone(original.ActualValue);
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| 160 | this.optimize = original.optimize;
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| 161 | this.actualValueConfigurationIndex = original.actualValueConfigurationIndex;
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| 162 | this.isNullable = original.isNullable;
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| 163 | if (this.valueConfigurations != null) RegisterValueConfigurationEvents();
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| 164 | }
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| 165 | public override IDeepCloneable Clone(Cloner cloner) {
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| 166 | return new ParameterConfiguration(this, cloner);
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| 167 | }
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| 168 | [StorableHook(HookType.AfterDeserialization)]
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| 169 | private void AfterDeserialization() {
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| 170 | if (this.valueConfigurations != null) RegisterValueConfigurationEvents();
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| 171 | }
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| 172 | #endregion
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| 173 |
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| 174 | private void RegisterValueConfigurationEvents() {
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| 175 | this.ValueConfigurations.CheckedItemsChanged += new Collections.CollectionItemsChangedEventHandler<IValueConfiguration>(ValueConfigurations_CheckedItemsChanged);
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| 176 | this.ValueConfigurations.ItemsAdded += new Collections.CollectionItemsChangedEventHandler<IValueConfiguration>(ValueConfigurations_ItemsAdded);
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| 177 | this.ValueConfigurations.ItemsRemoved += new Collections.CollectionItemsChangedEventHandler<IValueConfiguration>(ValueConfigurations_ItemsRemoved);
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| 178 | }
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| 179 |
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| 180 | private void DeregisterValueConfigurationEvents() {
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| 181 | this.ValueConfigurations.CheckedItemsChanged -= new Collections.CollectionItemsChangedEventHandler<IValueConfiguration>(ValueConfigurations_CheckedItemsChanged);
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| 182 | this.ValueConfigurations.ItemsAdded -= new Collections.CollectionItemsChangedEventHandler<IValueConfiguration>(ValueConfigurations_ItemsAdded);
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| 183 | this.ValueConfigurations.ItemsRemoved -= new Collections.CollectionItemsChangedEventHandler<IValueConfiguration>(ValueConfigurations_ItemsRemoved);
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| 184 | }
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| 185 |
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| 186 | private void RegisterActualValueEvents() {
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| 187 | if (this.ActualValue != null) this.ActualValue.ToStringChanged += new EventHandler(ActualValue_ToStringChanged);
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| 188 | }
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| 189 | private void DeregisterActualValueEvents() {
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| 190 | if (this.ActualValue != null) this.ActualValue.ToStringChanged -= new EventHandler(ActualValue_ToStringChanged);
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| 191 | }
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| 192 |
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| 193 | private void PopulateValueConfigurations() {
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[5207] | 194 | foreach (Type t in this.validTypes) {
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| 195 | if (t == typeof(NullValue)) {
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[5112] | 196 | this.ValueConfigurations.Add(new NullValueConfiguration());
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| 197 | } else {
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[5267] | 198 | IItem val;
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| 199 | if (ActualValue.Value != null && ActualValue.ValueDataType == t) {
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| 200 | val = (IItem)ActualValue.Value.Clone(); // use existing value for that type (if available)
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| 201 | } else {
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| 202 | val = CreateItem(t);
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| 203 | }
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[5112] | 204 | this.ValueConfigurations.Add(new ValueConfiguration(val, val.GetType()), true);
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| 205 | }
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| 206 | }
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| 207 | }
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| 208 |
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[5207] | 209 | private IEnumerable<Type> GetValidTypes(IValueParameter parameter) {
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[5267] | 210 | // in case of IOperator return empty list, otherwise hundreds of types would be returned. this mostly occurs for Successor which will never be optimized
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| 211 | if (parameter.DataType == typeof(IOperator))
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| 212 | return new List<Type>();
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| 213 |
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[5231] | 214 | if (IsSubclassOfRawGeneric(typeof(OptionalConstrainedValueParameter<>), parameter.GetType())) {
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| 215 | var parameterValidValues = (IEnumerable)parameter.GetType().GetProperty("ValidValues").GetValue(parameter, new object[] { });
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| 216 | return parameterValidValues.Cast<object>().Select(x => x.GetType());
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| 217 | } else {
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| 218 | return ApplicationManager.Manager.GetTypes(valueDataType, true);
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| 219 | }
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[5112] | 220 | }
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| 221 |
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[5231] | 222 | private IItemSet<IItem> GetValidValues(IValueParameter parameter) {
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| 223 | if (IsSubclassOfRawGeneric(typeof(OptionalConstrainedValueParameter<>), parameter.GetType())) {
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| 224 | var x = (IEnumerable)parameter.GetType().GetProperty("ValidValues").GetValue(parameter, new object[] { });
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[5267] | 225 | return new ItemSet<IItem>(x.Cast<IItem>().Select(y => (IItem)y.Clone())); // cloning actually saves memory, because references to event-subscribers are removed
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[5231] | 226 | } else {
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| 227 | return null;
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| 228 | }
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| 229 | }
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| 230 |
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| 231 | public IItem CreateItem(Type type) {
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| 232 | // no valid values; just instantiate
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| 233 | if (validValues == null)
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| 234 | return (IItem)Activator.CreateInstance(type);
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| 235 |
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| 236 | if (type == typeof(NullValue))
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| 237 | return new NullValue();
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| 238 |
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| 239 | // copy value from ValidValues; this ensures that previously set ActualNames for a type are kept
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| 240 | IItem value = this.validValues.Where(v => v.GetType() == type).SingleOrDefault();
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| 241 | if (value != null)
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[5267] | 242 | return value;
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[5231] | 243 |
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| 244 | return null;
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| 245 | }
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| 246 |
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| 247 | private ItemSet<IItem> CreateValidValues() {
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| 248 | var validValues = new ItemSet<IItem>();
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| 249 | foreach (Type t in this.validTypes) {
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[5267] | 250 | try {
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| 251 | var val = CreateItem(t);
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| 252 | validValues.Add(val);
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| 253 | }
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| 254 | catch (MissingMethodException) { /* Constructor is missing, don't use those types */ }
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[5231] | 255 | }
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| 256 | return validValues;
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| 257 | }
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| 258 |
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[5112] | 259 | private static bool IsSubclassOfRawGeneric(Type generic, Type toCheck) {
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| 260 | while (toCheck != typeof(object)) {
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| 261 | var cur = toCheck.IsGenericType ? toCheck.GetGenericTypeDefinition() : toCheck;
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| 262 | if (generic == cur) {
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| 263 | return true;
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| 264 | }
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| 265 | toCheck = toCheck.BaseType;
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| 266 | }
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| 267 | return false;
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| 268 | }
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| 269 |
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| 270 | void ValueConfigurations_CheckedItemsChanged(object sender, Collections.CollectionItemsChangedEventArgs<IValueConfiguration> e) {
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| 271 | OnToStringChanged();
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| 272 | }
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| 273 | void ValueConfigurations_ItemsRemoved(object sender, Collections.CollectionItemsChangedEventArgs<IValueConfiguration> e) {
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| 274 | OnToStringChanged();
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| 275 | }
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| 276 | void ValueConfigurations_ItemsAdded(object sender, Collections.CollectionItemsChangedEventArgs<IValueConfiguration> e) {
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| 277 | OnToStringChanged();
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| 278 | }
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| 279 |
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| 280 | #region INamedItem Properties
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| 281 | public virtual string Name {
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| 282 | get { return ParameterName; }
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| 283 | set { throw new NotSupportedException(); }
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| 284 | }
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| 285 | public virtual string Description {
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| 286 | get { return base.ItemDescription; }
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| 287 | set { throw new NotSupportedException(); }
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| 288 | }
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| 289 | public virtual bool CanChangeDescription {
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| 290 | get { return false; }
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| 291 | }
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| 292 | public virtual bool CanChangeName {
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| 293 | get { return false; }
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| 294 | }
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| 295 | public override string ItemDescription {
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| 296 | //get { return parameter != null ? parameter.Description : base.ItemDescription; }
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| 297 | get { return base.ItemDescription; }
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| 298 | }
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| 299 | public override System.Drawing.Image ItemImage {
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| 300 | //get { return parameter != null ? parameter.ItemImage : base.ItemImage; }
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| 301 | get { return base.ItemImage; }
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| 302 | }
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| 303 | public override string ItemName {
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| 304 | //get { return parameter != null ?parameter.ItemName : base.ItemName; }
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| 305 | get { return base.ItemName; }
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| 306 | }
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| 307 | #endregion
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| 308 |
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| 309 | #region Events
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| 310 | void ActualValue_ToStringChanged(object sender, EventArgs e) {
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| 311 | OnToStringChanged();
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| 312 | }
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| 313 | #endregion
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| 314 |
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| 315 | #region Event Handler
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| 316 | public virtual event EventHandler NameChanged;
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| 317 | protected virtual void OnNameChanged(object sender, EventArgs e) {
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| 318 | var handler = NameChanged;
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| 319 | if (handler != null) handler(sender, e);
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| 320 | }
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| 321 |
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| 322 | public virtual event EventHandler<CancelEventArgs<string>> NameChanging;
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| 323 | protected virtual void OnNameChanging(object sender, CancelEventArgs<string> e) {
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| 324 | var handler = NameChanging;
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| 325 | if (handler != null) handler(sender, e);
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| 326 | }
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| 327 |
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| 328 | public virtual event EventHandler DescriptionChanged;
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| 329 | protected virtual void OnDescriptionChanged(object sender, EventArgs e) {
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| 330 | var handler = DescriptionChanged;
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| 331 | if (handler != null) handler(sender, e);
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| 332 | }
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[5207] | 333 |
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[5112] | 334 | public virtual event EventHandler IsOptimizableChanged;
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| 335 | private void OnIsOptimizableChanged() {
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| 336 | var handler = IsOptimizableChanged;
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| 337 | if (handler != null) handler(this, EventArgs.Empty);
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| 338 | }
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| 339 |
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| 340 | public virtual event EventHandler OptimizeChanged;
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| 341 | protected virtual void OnOptimizeChanged() {
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| 342 | var handler = OptimizeChanged;
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| 343 | if (handler != null) handler(this, EventArgs.Empty);
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| 344 | }
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| 345 | #endregion
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| 346 |
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| 347 | public override string ToString() {
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| 348 | if (Optimize) {
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| 349 | return string.Format("{0}: (Optimize: {1})", ParameterName, ValueConfigurations.CheckedItems.Count());
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| 350 | } else {
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| 351 | return string.Format("{0}: {1}", ParameterName, ActualValue.Value);
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| 352 | }
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| 353 | }
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| 354 |
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[5184] | 355 | public string ParameterInfoString {
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| 356 | get {
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| 357 | StringBuilder sb = new StringBuilder();
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| 358 | if (this.Optimize) {
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| 359 | sb.Append(string.Format("{0}: {1}", parameterName, this.ActualValue.Value != null ? this.ActualValue.Value.ToString() : "null"));
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| 360 |
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| 361 | if (this.ActualValue.Value is IParameterizedItem) {
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| 362 | string subParams = this.ValueConfigurations.CheckedItems.ElementAt(actualValueConfigurationIndex).ParameterInfoString;
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| 363 | if (!string.IsNullOrEmpty(subParams)) {
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| 364 | sb.Append(" (");
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| 365 | sb.Append(subParams);
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| 366 | sb.Append(")");
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| 367 | }
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| 368 | }
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| 369 | }
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| 370 | return sb.ToString();
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[5144] | 371 | }
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| 372 | }
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| 373 |
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[5112] | 374 | public static IParameterConfiguration Create(IParameterizedNamedItem parent, IParameter parameter) {
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| 375 | if (parameter is IValueParameter) {
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| 376 | IValueParameter valueParameter = parameter as IValueParameter;
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| 377 | return new ParameterConfiguration(parameter.Name, valueParameter);
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| 378 | }
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| 379 | return null;
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| 380 | }
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| 381 |
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| 382 | public void Parameterize(IValueParameter parameter) {
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| 383 | if (Optimize) {
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| 384 | if (this.ActualValue.Value is IParameterizedItem) {
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| 385 | this.ValueConfigurations.CheckedItems.ElementAt(actualValueConfigurationIndex).Parameterize((IParameterizedItem)this.ActualValue.Value);
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| 386 | }
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| 387 | }
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[5207] | 388 | var clonedValue = this.ActualValue.Value != null ? (IItem)this.ActualValue.Value.Clone() : null;
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| 389 | AdaptValidValues(parameter, clonedValue);
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| 390 | parameter.Value = clonedValue;
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[5112] | 391 | }
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| 392 |
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[5207] | 393 | /// <summary>
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| 394 | /// Adds value to the ValidValues of the parameter if they don't contain the value
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| 395 | /// </summary>
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| 396 | private void AdaptValidValues(IValueParameter parameter, IItem value) {
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| 397 | // this requires some tricky reflection, because the type is unknown at runtime so parameter.ValidValues cannot be casted to Collection<?>
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| 398 | if (IsSubclassOfRawGeneric(typeof(OptionalConstrainedValueParameter<>), parameter.GetType())) {
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| 399 | var validValues = parameter.GetType().GetProperty("ValidValues").GetValue(parameter, new object[] { });
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| 400 | Type validValuesType = validValues.GetType();
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| 401 |
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| 402 | var containsMethod = validValuesType.GetMethod("Contains");
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| 403 | if (!(bool)containsMethod.Invoke(validValues, new object[] { value })) {
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| 404 | var addMethod = validValuesType.GetMethod("Add");
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| 405 | addMethod.Invoke(validValues, new object[] { value });
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| 406 | }
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| 407 | }
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| 408 | }
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| 409 |
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[5112] | 410 | public void Randomize(IRandom random) {
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| 411 | if (Optimize) {
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| 412 | foreach (var vc in this.ValueConfigurations.CheckedItems) {
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| 413 | vc.Randomize(random);
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| 414 | }
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| 415 | actualValueConfigurationIndex = random.Next(ValueConfigurations.CheckedItems.Count());
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| 416 | this.ActualValue = this.ValueConfigurations.CheckedItems.ElementAt(actualValueConfigurationIndex).ActualValue;
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| 417 | }
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| 418 | }
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| 419 |
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| 420 | public void Mutate(IRandom random, MutateDelegate mutate, ParameterConfigurationManipulator pcmanip) {
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| 421 | if (Optimize) {
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| 422 | foreach (IValueConfiguration vc in this.ValueConfigurations.CheckedItems) {
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| 423 | vc.Mutate(random, mutate, pcmanip);
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| 424 | }
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| 425 | mutate(random, this, pcmanip);
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| 426 | }
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| 427 | }
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| 428 |
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| 429 | public void Cross(IRandom random, IOptimizable other, CrossDelegate cross, ParameterConfigurationCrossover pccross) {
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| 430 | if (Optimize) {
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| 431 | IParameterConfiguration otherPc = (IParameterConfiguration)other;
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| 432 | for (int i = 0; i < this.ValueConfigurations.Count; i++) {
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| 433 | cross(random, other, pccross);
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| 434 | //this.ValueConfigurations.ElementAt(i).Cross(otherPc.ValueConfigurations.ElementAt(i), random);
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| 435 | }
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| 436 | //if (random.NextDouble() > 0.5) {
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| 437 | // actualValueConfigurationIndex = ((ParameterConfiguration)other).actualValueConfigurationIndex;
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| 438 | //}
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| 439 | //this.ActualValue = this.ValueConfigurations.CheckedItems.ElementAt(actualValueConfigurationIndex).ActualValue;
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| 440 | }
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| 441 | }
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[5144] | 442 |
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| 443 | public void UpdateActualValueIndexToItem(IValueConfiguration vc) {
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| 444 | for (int i = 0; i < this.ValueConfigurations.CheckedItems.Count(); i++) {
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| 445 | if (this.ValueConfigurations.CheckedItems.ElementAt(i) == vc) {
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| 446 | this.actualValueConfigurationIndex = i;
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| 447 | return;
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| 448 | }
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| 449 | }
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| 450 | }
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| 451 |
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[5112] | 452 | }
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| 453 | }
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