1 | using System;
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2 | using System.Collections.Generic;
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3 | using HeuristicLab.Common;
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4 | using HeuristicLab.Core;
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5 | using HeuristicLab.Data;
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6 | using HeuristicLab.DataPreprocessing.Interfaces;
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7 | using HeuristicLab.Problems.DataAnalysis;
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8 | using HeuristicLab.Problems.DataAnalysis.Transformations;
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9 |
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10 | namespace HeuristicLab.DataPreprocessing.Implementations {
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11 | public class FilteredPreprocessingData : NamedItem, IFilteredPreprocessingData {
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12 | private readonly ITransactionalPreprocessingData originalData;
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13 | private ITransactionalPreprocessingData filteredData;
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14 |
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15 | public IDictionary<int, IList<int>> Selection {
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16 | get { return originalData.Selection; }
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17 | set { originalData.Selection = value; }
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18 | }
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19 |
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20 | protected FilteredPreprocessingData(FilteredPreprocessingData original, Cloner cloner)
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21 | : base(original, cloner) {
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22 | originalData = original.originalData;
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23 | filteredData = original.filteredData;
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24 | }
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25 |
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26 | public FilteredPreprocessingData(ITransactionalPreprocessingData preporcessingData)
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27 | : base() {
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28 | originalData = preporcessingData;
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29 | filteredData = null;
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30 | }
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31 |
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32 | public override IDeepCloneable Clone(Cloner cloner) {
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33 | return new FilteredPreprocessingData(this, cloner);
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34 | }
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35 |
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36 | public T GetCell<T>(int columnIndex, int rowIndex) {
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37 | return ActiveData.GetCell<T>(columnIndex, rowIndex);
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38 | }
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39 |
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40 | public void SetCell<T>(int columnIndex, int rowIndex, T value) {
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41 | if (IsFiltered)
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42 | throw new InvalidOperationException("SetCell not possible while data is filtered");
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43 |
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44 | originalData.SetCell<T>(columnIndex, rowIndex, value);
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45 | }
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46 |
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47 | public string GetCellAsString(int columnIndex, int rowIndex) {
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48 | return ActiveData.GetCellAsString(columnIndex, rowIndex);
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49 | }
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50 |
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51 | public IList<T> GetValues<T>(string variableName, bool considerSelection) {
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52 | return ActiveData.GetValues<T>(variableName, considerSelection);
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53 | }
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54 |
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55 | public IList<T> GetValues<T>(int columnIndex, bool considerSelection) {
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56 | return ActiveData.GetValues<T>(columnIndex, considerSelection);
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57 | }
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58 |
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59 | public void SetValues<T>(int columnIndex, IList<T> values) {
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60 | if (IsFiltered)
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61 | throw new InvalidOperationException("SetValues not possible while data is filtered");
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62 |
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63 | originalData.SetValues<T>(columnIndex, values);
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64 | }
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65 |
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66 | public void InsertRow(int rowIndex) {
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67 | if (IsFiltered)
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68 | throw new InvalidOperationException("InsertRow not possible while data is filtered");
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69 |
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70 | originalData.InsertRow(rowIndex);
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71 | }
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72 |
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73 | public void DeleteRow(int rowIndex) {
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74 | if (IsFiltered)
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75 | throw new InvalidOperationException("DeleteRow not possible while data is filtered");
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76 |
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77 | originalData.DeleteRow(rowIndex);
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78 | }
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79 |
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80 | public void InsertColumn<T>(string variableName, int columnIndex) {
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81 | if (IsFiltered)
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82 | throw new InvalidOperationException("InsertColumn not possible while data is filtered");
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83 |
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84 | originalData.InsertColumn<T>(variableName, columnIndex);
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85 | }
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86 |
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87 | public void DeleteColumn(int columnIndex) {
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88 | if (IsFiltered)
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89 | throw new InvalidOperationException("DeleteColumn not possible while data is filtered");
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90 | originalData.DeleteColumn(columnIndex);
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91 | }
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92 |
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93 | public IntRange TrainingPartition {
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94 | get { return originalData.TrainingPartition; }
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95 | }
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96 |
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97 | public IntRange TestPartition {
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98 | get { return originalData.TestPartition; }
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99 | }
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100 |
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101 | public IList<ITransformation> Transformations {
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102 | get { return originalData.Transformations; }
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103 | }
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104 |
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105 | public IEnumerable<string> VariableNames {
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106 | get { return ActiveData.VariableNames; }
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107 | }
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108 |
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109 | public string GetVariableName(int columnIndex) {
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110 | return ActiveData.GetVariableName(columnIndex);
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111 | }
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112 |
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113 | public int GetColumnIndex(string variableName) {
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114 | return ActiveData.GetColumnIndex(variableName);
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115 | }
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116 |
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117 | public bool IsType<T>(int columnIndex) {
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118 | return originalData.IsType<T>(columnIndex);
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119 | }
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120 |
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121 | public int Columns {
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122 | get { return ActiveData.Columns; }
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123 | }
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124 |
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125 | public int Rows {
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126 | get { return ActiveData.Rows; }
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127 | }
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128 |
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129 | public Dataset ExportToDataset() {
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130 | return originalData.ExportToDataset();
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131 | }
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132 |
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133 | public void SetFilter(bool[] rowFilters) {
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134 | filteredData = (ITransactionalPreprocessingData)originalData.Clone();
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135 | filteredData.InTransaction(() => {
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136 | for (int row = (rowFilters.Length - 1); row >= 0; --row) {
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137 | if (rowFilters[row]) {
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138 | filteredData.DeleteRow(row);
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139 | }
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140 | }
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141 | });
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142 | OnFilterChanged();
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143 | }
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144 |
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145 | public void PersistFilter() {
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146 | originalData.InTransaction(() => {
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147 | for (int i = 0; i < filteredData.Columns; ++i) {
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148 | if (filteredData.IsType<double>(i)) {
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149 | originalData.SetValues<double>(i, filteredData.GetValues<double>(i));
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150 | } else if (filteredData.IsType<string>(i)) {
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151 | originalData.SetValues<string>(i, filteredData.GetValues<string>(i));
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152 | } else if (filteredData.IsType<DateTime>(i)) {
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153 | originalData.SetValues<DateTime>(i, filteredData.GetValues<DateTime>(i));
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154 | } else {
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155 | throw new ArgumentException("Data types of columns do not match");
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156 | }
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157 | }
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158 | });
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159 | ResetFilter();
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160 | }
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161 |
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162 | public void ResetFilter() {
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163 | filteredData = null;
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164 | OnFilterChanged();
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165 | }
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166 |
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167 | private void OnFilterChanged() {
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168 | if (FilterChanged != null) {
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169 | FilterChanged(this, new EventArgs());
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170 | }
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171 | }
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172 |
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173 | public ITransactionalPreprocessingData ActiveData {
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174 | get { return IsFiltered ? filteredData : originalData; }
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175 | }
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176 |
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177 |
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178 | public bool IsUndoAvailable {
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179 | get { return IsFiltered ? false : originalData.IsUndoAvailable; }
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180 | }
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181 |
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182 |
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183 | public bool IsFiltered {
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184 | get { return filteredData != null; }
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185 | }
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186 |
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187 | public event DataPreprocessingChangedEventHandler Changed {
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188 | add { originalData.Changed += value; }
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189 | remove { originalData.Changed -= value; }
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190 | }
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191 |
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192 |
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193 | public void Undo() {
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194 | if (IsFiltered)
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195 | throw new InvalidOperationException("Undo not possible while data is filtered");
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196 |
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197 | originalData.Undo();
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198 | }
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199 |
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200 | public void InTransaction(Action action, DataPreprocessingChangedEventType type = DataPreprocessingChangedEventType.Any) {
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201 | if (IsFiltered)
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202 | throw new InvalidOperationException("Transaction not possible while data is filtered");
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203 | originalData.InTransaction(action, type);
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204 | }
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205 |
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206 | public void BeginTransaction(DataPreprocessingChangedEventType type) {
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207 | if (IsFiltered)
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208 | throw new InvalidOperationException("Transaction not possible while data is filtered");
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209 | originalData.BeginTransaction(type);
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210 | }
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211 |
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212 | public void EndTransaction() {
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213 | originalData.EndTransaction();
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214 | }
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215 |
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216 | public event EventHandler FilterChanged;
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217 |
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218 | #region IPreprocessingData Members
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219 |
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220 | public void ClearSelection() {
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221 | originalData.ClearSelection();
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222 | }
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223 |
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224 | public event EventHandler SelectionChanged {
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225 | add { originalData.SelectionChanged += value; }
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226 | remove { originalData.SelectionChanged -= value; }
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227 | }
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228 |
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229 | #endregion
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230 |
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231 | #region IPreprocessingData Members
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232 |
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233 |
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234 | public IEnumerable<string> GetDoubleVariableNames() {
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235 | return originalData.GetDoubleVariableNames();
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236 | }
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237 |
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238 | #endregion
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239 | }
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240 | }
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