1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2008 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.Core;
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27 | using System.Collections;
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28 | using HeuristicLab.CEDMA.DB.Interfaces;
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29 | using System.Xml;
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30 | using System.Runtime.Serialization;
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31 | using System.IO;
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32 | using HeuristicLab.PluginInfrastructure;
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33 | using HeuristicLab.Data;
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34 | using HeuristicLab.DataAnalysis;
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35 | using System.Drawing;
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36 |
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37 | namespace HeuristicLab.CEDMA.Core {
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38 | public class Results : ItemBase {
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39 | private const int PAGE_SIZE = 1000;
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40 | private string[] categoricalVariables = null;
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41 | public string[] CategoricalVariables {
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42 | get {
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43 | if (categoricalVariables == null) {
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44 | LoadModelAttributes();
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45 | }
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46 | return categoricalVariables;
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47 | }
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48 | }
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49 |
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50 | private string[] ordinalVariables = null;
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51 | public string[] OrdinalVariables {
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52 | get {
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53 | if (ordinalVariables == null) {
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54 | LoadModelAttributes();
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55 | }
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56 | return ordinalVariables;
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57 | }
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58 | }
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59 |
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60 | private IStore store;
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61 | public IStore Store {
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62 | get { return store; }
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63 | set {
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64 | store = value;
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65 | }
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66 | }
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67 |
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68 | private Dictionary<string, Dictionary<object, double>> categoricalValueIndices = new Dictionary<string, Dictionary<object, double>>();
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69 |
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70 | private Entity dataSetEntity;
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71 |
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72 | public Results(IStore store) {
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73 | this.store = store;
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74 | }
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75 |
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76 | internal void FilterDataSet(Entity entity) {
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77 | this.dataSetEntity = entity;
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78 | }
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79 |
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80 | private List<ResultsEntry> entries = null;
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81 | private bool cached = false;
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82 | public IEnumerable<ResultsEntry> GetEntries() {
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83 | if (!cached)
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84 | return SelectRows();
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85 | return entries.AsEnumerable();
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86 | }
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87 |
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88 | private IEnumerable<ResultsEntry> SelectRows() {
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89 | int page = 0;
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90 | int resultsReturned = 0;
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91 | bool newEntry = false;
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92 | if (store == null) yield break;
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93 | entries = new List<ResultsEntry>();
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94 | do {
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95 | var allBindings = store.Query("<" + dataSetEntity + "> <" + Ontology.PredicateHasModel + "> ?Model ." + Environment.NewLine +
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96 | "?Model ?Attribute ?Value .", page, PAGE_SIZE);
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97 | var allModelBindings = allBindings.GroupBy(x => (Entity)x.Get("Model"));
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98 | resultsReturned = allBindings.Count;
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99 |
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100 | foreach (var modelBindings in allModelBindings) {
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101 | ResultsEntry entry = entries.FirstOrDefault(x => x.Uri == modelBindings.Key.Uri);
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102 | newEntry = false;
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103 | if (entry == null) {
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104 | entry = new ResultsEntry();
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105 | entry.Uri = modelBindings.Key.Uri;
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106 | entries.Add(entry);
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107 | newEntry = true;
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108 | }
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109 | foreach (var binding in modelBindings) {
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110 | if (binding.Get("Value") is Literal) {
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111 | string name = ((Entity)binding.Get("Attribute")).Uri.Replace(Ontology.CedmaNameSpace, "");
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112 | if (entry.Get(name) == null) {
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113 | object value = ((Literal)binding.Get("Value")).Value;
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114 | entry.Set(name, value);
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115 | }
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116 | }
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117 | }
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118 | if (newEntry) yield return entry;
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119 | }
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120 | page++;
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121 | } while (resultsReturned == PAGE_SIZE);
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122 |
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123 | FireChanged();
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124 | cached = true;
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125 | }
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126 |
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127 | internal IEnumerable<string> SelectModelAttributes() {
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128 | return CategoricalVariables.Concat(OrdinalVariables);
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129 | }
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130 |
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131 | private void LoadModelAttributes() {
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132 | this.ordinalVariables =
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133 | store.Query("?ModelAttribute <" + Ontology.PredicateInstanceOf + "> <" + Ontology.TypeOrdinalAttribute + "> .", 0, 100)
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134 | .Select(s => ((Entity)s.Get("ModelAttribute")).Uri.Replace(Ontology.CedmaNameSpace, ""))
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135 | .ToArray();
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136 | this.categoricalVariables =
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137 | store.Query("?ModelAttribute <" + Ontology.PredicateInstanceOf + "> <" + Ontology.TypeCategoricalAttribute + "> .", 0, 100)
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138 | .Select(s => ((Entity)s.Get("ModelAttribute")).Uri.Replace(Ontology.CedmaNameSpace, ""))
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139 | .ToArray();
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140 | }
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141 |
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142 | public double IndexOfCategoricalValue(string variable, object value) {
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143 | if (value == null) return double.NaN;
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144 | Dictionary<object, double> valueToIndexMap;
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145 | if (categoricalValueIndices.ContainsKey(variable)) {
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146 | valueToIndexMap = categoricalValueIndices[variable];
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147 | } else {
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148 | valueToIndexMap = new Dictionary<object, double>();
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149 | categoricalValueIndices[variable] = valueToIndexMap;
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150 | }
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151 | if (!valueToIndexMap.ContainsKey(value)) {
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152 | if (valueToIndexMap.Values.Count == 0) valueToIndexMap[value] = 1.0;
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153 | else valueToIndexMap[value] = 1.0 + valueToIndexMap.Values.Max();
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154 | }
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155 | return valueToIndexMap[value];
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156 | }
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157 | }
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158 | }
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