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;
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24 | using System.Collections.Generic;
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25 | using System.Data.Linq;
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26 | using System.Linq;
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27 | using System.Linq.Expressions;
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28 | using System.Reflection;
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29 | using HeuristicLab.Services.OKB.DataAccess;
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30 |
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31 | namespace HeuristicLab.Services.OKB.AttributeSelection {
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32 |
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33 | public class AttributeSpecifier {
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34 | public string TableName { get; set; }
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35 | public string FieldName { get; set; }
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36 | public Type DataType { get; set; }
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37 | }
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38 |
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39 | public class RunAttributeSelector : AttributeSelector {
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40 |
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41 | public RunAttributeSelector(OKBDataContext okb, string table, string field)
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42 | : base(okb, table, field) { }
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43 |
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44 | public RunAttributeSelector(OKBDataContext okb, IAttributeSelector selector)
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45 | : base(okb, selector.TableName, selector.FieldName) {
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46 | IsHidden = selector.IsHidden;
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47 | MinValue = selector.MinValue;
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48 | MaxValue = selector.MaxValue;
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49 | AllowedValues = selector.AllowedValues;
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50 | }
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51 |
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52 | protected RunAttributeSelector(Type tableType, string fieldName, bool isDynamic, Type dataType, int parentId)
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53 | : base(tableType, fieldName, isDynamic, dataType, parentId) { }
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54 |
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55 | public static IEnumerable<RunAttributeSelector> GetAllAttributeSelectors(OKBDataContext okb) {
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56 | OKBDataContext o = new OKBDataContext(okb.Connection.ConnectionString);
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57 | DataLoadOptions dlo = new DataLoadOptions();
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58 | dlo.LoadWith<Result>(r => r.DataType);
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59 | dlo.LoadWith<Parameter>(p => p.DataType);
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60 | dlo.LoadWith<ProblemCharacteristic>(pc => pc.DataType);
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61 | o.LoadOptions = dlo;
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62 | foreach (Selector selector in Selectors) {
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63 | yield return new RunAttributeSelector(o, selector.Table.Name, selector.Field);
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64 | }
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65 | foreach (Result result in okb.Results) {
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66 | yield return new RunAttributeSelector(typeof(Result), result.Name, true, result.DataType.Type, result.Id);
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67 | }
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68 | foreach (Parameter p in okb.Parameters) {
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69 | yield return new RunAttributeSelector(typeof(Parameter), p.Name, true, p.DataType.Type, p.Id);
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70 | }
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71 | foreach (ProblemCharacteristic pc in okb.ProblemCharacteristics) {
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72 | yield return new RunAttributeSelector(typeof(ProblemCharacteristic), pc.Name, true, pc.DataType.Type, pc.Id);
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73 | }
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74 | }
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75 |
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76 | public void ConfigureDataLoadOptions(DataLoadOptions dlo) {
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77 | if (IsHidden)
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78 | return;
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79 | Include(TableType, dlo);
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80 | }
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81 |
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82 | private static readonly Dictionary<Type, Type> parents = new Dictionary<Type, Type>() {
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83 | { typeof(Run), null },
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84 | { typeof(Client), typeof(Run) },
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85 | { typeof(User), typeof(Run) },
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86 | { typeof(Experiment), typeof(Run) },
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87 | { typeof(Project), typeof(Experiment) },
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88 | { typeof(Algorithm), typeof(Experiment) },
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89 | { typeof(AlgorithmClass), typeof(Algorithm) },
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90 | { typeof(Platform), typeof(Algorithm) },
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91 | { typeof(Problem), typeof(Experiment) },
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92 | { typeof(ProblemClass), typeof(Problem) },
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93 | { typeof(SolutionRepresentation), typeof(Problem) },
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94 | };
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95 |
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96 | public static MethodInfo Enumerable_Where =
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97 | typeof(Enumerable).GetMethods().Single(mi =>
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98 | mi.Name == "Where" &&
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99 | mi.GetParameters().Count() == 2 &&
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100 | mi.GetParameters()[1].ParameterType.GetGenericArguments().Count() == 2);
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101 |
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102 | public static MethodInfo Enumerable_Cast = typeof(Enumerable).GetMethod("Cast");
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103 |
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104 | private void AssociateWith<T, V>(DataLoadOptions dlo,
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105 | Expression<Func<T, IEnumerable>> intSelector,
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106 | Expression<Func<T, IEnumerable>> doubleSelector,
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107 | Expression<Func<T, IEnumerable>> charSelector,
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108 | Expression<Func<T, IEnumerable>> blobSelector,
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109 | Expression<Func<V, bool>> filterPredicate) {
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110 | Expression<Func<T, IEnumerable>> selector;
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111 | switch (Type.GetTypeCode(DataType)) {
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112 | case TypeCode.Int32: selector = intSelector; break;
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113 | case TypeCode.Double: selector = doubleSelector; break;
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114 | case TypeCode.String: selector = charSelector; break;
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115 | default:
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116 | if (blobSelector != null)
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117 | selector = blobSelector;
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118 | else
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119 | throw new ArgumentException("DataType");
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120 | break;
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121 | }
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122 | ParameterExpression param = Expression.Parameter(typeof(T), "param");
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123 | dlo.AssociateWith<T>((Expression<Func<T, object>>)
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124 | Expression.Lambda(
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125 | Expression.Convert(
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126 | Expression.Call(
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127 | null,
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128 | Enumerable_Where.MakeGenericMethod(typeof(V)),
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129 | Expression.Convert(Expression.Invoke(selector, param), typeof(IEnumerable<V>)),
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130 | filterPredicate),
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131 | typeof(object)), param));
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132 | try {
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133 | dlo.LoadWith(selector);
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134 | }
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135 | catch (ArgumentException) {
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136 | Console.WriteLine("INFO: not adding (duplicate) load option: dlo.LoadWith<{0}>({1})", typeof(T).Name, selector.ToString());
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137 | Console.WriteLine("INFO: clearing association filters to allow multiple associations");
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138 | dlo.AssociateWith<T>((Expression<Func<T, object>>)
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139 | Expression.Lambda(
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140 | Expression.Convert(
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141 | Expression.Invoke(selector, param),
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142 | typeof(object)),
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143 | param));
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144 | }
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145 | }
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146 |
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147 | private void Include(Type type, DataLoadOptions dlo) {
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148 | if (parents.ContainsKey(type)) {
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149 | Type parentType = parents[type];
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150 | if (parentType == null)
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151 | return;
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152 | LoadWith(dlo, parentType, type);
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153 | Include(parentType, dlo);
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154 | } else if (type == typeof(ProblemCharacteristic)) {
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155 | AssociateWith<Problem, IProblemCharacteristicValue>(dlo,
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156 | p => p.IntProblemCharacteristicValues,
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157 | p => p.FloatProblemCharacteristicValues,
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158 | p => p.CharProblemCharacteristicValues,
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159 | null,
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160 | pc => pc.ProblemId == ParentId);
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161 | Include(typeof(Problem), dlo);
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162 | } else if (type == typeof(Parameter)) {
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163 | AssociateWith<Experiment, IParameterValue>(dlo,
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164 | x => x.IntParameterValues,
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165 | x => x.FloatParameterValues,
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166 | x => x.CharParameterValues,
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167 | x => x.OperatorParameterValues,
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168 | ipv => ipv.ParameterId == ParentId);
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169 | try {
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170 | dlo.LoadWith<OperatorParameterValue>(opv => opv.DataType);
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171 | }
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172 | catch (ArgumentException) {
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173 | Console.WriteLine("INFO: not adding (duplicate) load option for OperatorParameterValue.DataType");
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174 | }
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175 | Include(typeof(Experiment), dlo);
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176 | } else if (type == typeof(Result)) {
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177 | AssociateWith<Run, IResultValue>(dlo,
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178 | r => r.IntResultValues,
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179 | r => r.FloatResultValues,
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180 | r => r.CharResultValues,
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181 | r => r.BlobResultValues,
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182 | irv => irv.ResultId == ParentId);
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183 | } else
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184 | throw new ArgumentException("type");
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185 | }
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186 |
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187 | protected static List<Selector> Selectors = new List<Selector>() {
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188 | ExpressionTools.GetSelector(run => run, r => r.Id),
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189 | ExpressionTools.GetSelector(run => run, r => r.FinishedDate),
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190 |
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191 | ExpressionTools.GetSelector(run => run.Client, c => c.Id),
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192 | ExpressionTools.GetSelector(run => run.Client, c => c.Name),
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193 |
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194 | ExpressionTools.GetSelector(run => run.User, u => u.Id),
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195 | ExpressionTools.GetSelector(run => run.User, u => u.Name),
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196 |
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197 | ExpressionTools.GetSelector(run => run.Experiment, x => x.Id),
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198 |
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199 | ExpressionTools.GetSelector(run => run.Experiment.Project, p => p.Id),
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200 | ExpressionTools.GetSelector(run => run.Experiment.Project, p => p.Name),
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201 | ExpressionTools.GetSelector(run => run.Experiment.Project, p => p.Description),
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202 |
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203 | ExpressionTools.GetSelector(run => run.Experiment.Algorithm, a => a.Id),
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204 | ExpressionTools.GetSelector(run => run.Experiment.Algorithm, a => a.Name),
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205 | ExpressionTools.GetSelector(run => run.Experiment.Algorithm, a => a.Description),
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206 |
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207 | ExpressionTools.GetSelector(run => run.Experiment.Algorithm.AlgorithmClass, ac => ac.Id),
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208 | ExpressionTools.GetSelector(run => run.Experiment.Algorithm.AlgorithmClass, ac => ac.Name),
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209 | ExpressionTools.GetSelector(run => run.Experiment.Algorithm.AlgorithmClass, ac => ac.Description),
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210 |
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211 | ExpressionTools.GetSelector(run => run.Experiment.Algorithm.Platform, p => p.Id),
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212 | ExpressionTools.GetSelector(run => run.Experiment.Algorithm.Platform, p => p.Name),
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213 | ExpressionTools.GetSelector(run => run.Experiment.Algorithm.Platform, p => p.Description),
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214 |
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215 | ExpressionTools.GetSelector(run => run.Experiment.Problem, p => p.Id),
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216 | ExpressionTools.GetSelector(run => run.Experiment.Problem, p => p.Name),
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217 | ExpressionTools.GetSelector(run => run.Experiment.Problem, p => p.Description),
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218 |
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219 | ExpressionTools.GetSelector(run => run.Experiment.Problem.ProblemClass, pc => pc.Id),
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220 | ExpressionTools.GetSelector(run => run.Experiment.Problem.ProblemClass, pc => pc.Name),
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221 | ExpressionTools.GetSelector(run => run.Experiment.Problem.ProblemClass, pc => pc.Description),
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222 |
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223 | ExpressionTools.GetSelector(run => run.Experiment.Problem.SolutionRepresentation, sr => sr.Id),
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224 | ExpressionTools.GetSelector(run => run.Experiment.Problem.SolutionRepresentation, sr => sr.Name),
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225 | ExpressionTools.GetSelector(run => run.Experiment.Problem.SolutionRepresentation, sr => sr.Description)
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226 | };
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227 |
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228 | private Func<Run, object> compiledSelector;
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229 |
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230 | protected void CreateCompiledSelector<T>() {
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231 | var genericCompiledSelector = ((Expression<Func<Run, T>>)GetSelectorExpression()).Compile();
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232 | compiledSelector = run => {
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233 | try {
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234 | return (object)genericCompiledSelector(run);
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235 | }
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236 | catch (InvalidOperationException x) {
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237 | if (x.TargetSite == ExpressionTools.Enumerable_Single)
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238 | return null;
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239 | else
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240 | throw;
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241 | }
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242 | };
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243 | }
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244 |
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245 | public Func<Run, object> CompiledSelector {
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246 | get {
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247 | if (compiledSelector == null) {
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248 | typeof(RunAttributeSelector)
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249 | .GetMethod("CreateCompiledSelector", BindingFlags.Instance | BindingFlags.NonPublic)
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250 | .MakeGenericMethod(DataType).Invoke(this, new object[0]);
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251 | }
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252 | return compiledSelector;
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253 | }
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254 | }
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255 |
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256 | public LambdaExpression GetSelectorExpression() {
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257 | if (TableType == typeof(Parameter))
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258 | return
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259 | GetDynamicSelector(typeof(Parameter), run => run.Experiment,
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260 | x => x.IntParameterValues.Single(ipv => ipv.ParameterId == ParentId).Value,
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261 | x => x.FloatParameterValues.Single(fpv => fpv.ParameterId == ParentId).Value,
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262 | x => x.CharParameterValues.Single(cpv => cpv.ParameterId == ParentId).Value,
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263 | x => x.OperatorParameterValues.Single(opv => opv.ParameterId == ParentId).DataType.ClrName);
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264 | else if (TableType == typeof(Result))
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265 | return
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266 | GetDynamicSelector(typeof(Result), run => run,
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267 | r => r.IntResultValues.Single(irv => irv.ResultId == ParentId).Value,
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268 | r => r.FloatResultValues.Single(frv => frv.ResultId == ParentId).Value,
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269 | r => r.CharResultValues.Single(crv => crv.ResultId == ParentId).Value,
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270 | null);
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271 | else if (TableType == typeof(ProblemCharacteristic))
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272 | return
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273 | GetDynamicSelector(typeof(ProblemCharacteristic), run => run.Experiment.Problem,
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274 | p => p.IntProblemCharacteristicValues.Single(ipcv => ipcv.ProblemCharacteristicId == ParentId).Value,
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275 | p => p.FloatProblemCharacteristicValues.Single(fpcv => fpcv.ProblemCharacteristicId == ParentId).Value,
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276 | p => p.CharProblemCharacteristicValues.Single(cpcv => cpcv.ProblemCharacteristicId == ParentId).Value,
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277 | null);
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278 | else
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279 | return Selectors.Single(s => s.Table == TableType && s.Field == FieldName).Expression;
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280 | }
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281 |
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282 | public Expression<Func<Run, bool>> GetWhereExpression() {
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283 | return GetWhereExpression(GetSelectorExpression());
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284 | }
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285 |
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286 | protected Expression<Func<Run, bool>> GetWhereExpression(Expression selector) {
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287 | try {
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288 | return (Expression<Func<Run, bool>>)typeof(RunAttributeSelector)
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289 | .GetMethod("GenericGetWhereExpression", BindingFlags.Instance | BindingFlags.NonPublic)
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290 | .MakeGenericMethod(selector.Type.GetGenericArguments()[1])
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291 | .Invoke(this, new[] { selector });
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292 | }
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293 | catch (TargetInvocationException x) {
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294 | throw x.InnerException;
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295 | }
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296 | }
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297 |
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298 | protected Expression<Func<Run, bool>> GenericGetWhereExpression<T>(Expression<Func<Run, T>> selector) {
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299 | ParameterExpression parameter = Expression.Parameter(typeof(Run), "run");
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300 | Expression testExpression = Expression.Constant(true);
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301 | if (AllowedValues != null) {
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302 | testExpression = Expression.AndAlso(testExpression,
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303 | Expression.Call(
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304 | null,
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305 | ExpressionTools.Enumerable_Contains.MakeGenericMethod(typeof(T)),
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306 | Expression.Constant(AllowedValues.Cast<T>().ToArray()),
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307 | Expression.Invoke(selector, parameter)));
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308 | }
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309 | if (MinValue != null) {
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310 | testExpression = Expression.AndAlso(testExpression,
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311 | ExpressionTools.GetLessThanOrEqualExpression<T>(Expression.Constant(MinValue),
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312 | Expression.Invoke(selector, parameter)));
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313 | }
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314 | if (MaxValue != null) {
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315 | testExpression = Expression.AndAlso(testExpression,
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316 | ExpressionTools.GetGreaterOrEqualExpression<T>(Expression.Constant(MaxValue),
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317 | Expression.Invoke(selector, parameter)));
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318 | }
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319 | return (Expression<Func<Run, bool>>)
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320 | Expression.Lambda(testExpression, parameter);
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321 | }
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322 | }
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323 | }
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