1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2016 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 HeuristicLab.Common;
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25 | using HeuristicLab.Core;
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26 | using HeuristicLab.Data;
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27 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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28 | using HeuristicLab.Problems.DataAnalysis;
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29 |
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30 | namespace HeuristicLab.DataPreprocessing {
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31 | [Item("FilteredPreprocessingData", "Represents filtered data used for preprocessing.")]
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32 | [StorableClass]
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33 | public sealed class FilteredPreprocessingData : NamedItem, IFilteredPreprocessingData {
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34 |
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35 | [Storable]
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36 | private readonly IPreprocessingData originalData;
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37 | [Storable]
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38 | private IPreprocessingData filteredData;
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39 |
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40 | public IList<PreprocessingDataColumn> DataColumns {
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41 | get { return ActiveData.DataColumns; }
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42 | }
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43 |
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44 | public IPreprocessingData ActiveData {
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45 | get { return IsFiltered ? filteredData : originalData; }
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46 | }
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47 |
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48 | #region Constructor, Cloning & Persistence
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49 | public FilteredPreprocessingData(IPreprocessingData preporcessingData)
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50 | : base() {
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51 | originalData = preporcessingData;
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52 | filteredData = null;
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53 | }
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54 |
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55 | private FilteredPreprocessingData(FilteredPreprocessingData original, Cloner cloner)
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56 | : base(original, cloner) {
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57 | originalData = original.originalData;
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58 | filteredData = original.filteredData;
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59 | }
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60 | public override IDeepCloneable Clone(Cloner cloner) {
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61 | return new FilteredPreprocessingData(this, cloner);
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62 | }
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63 |
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64 | [StorableConstructor]
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65 | private FilteredPreprocessingData(bool deserializing)
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66 | : base(deserializing) { }
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67 | #endregion
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68 |
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69 | #region Cells
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70 | public bool IsCellEmpty(int columnIndex, int rowIndex) {
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71 | return ActiveData.IsCellEmpty(columnIndex, rowIndex);
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72 | }
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73 |
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74 | public T GetCell<T>(int columnIndex, int rowIndex) {
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75 | return ActiveData.GetCell<T>(columnIndex, rowIndex);
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76 | }
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77 |
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78 | public void SetCell<T>(int columnIndex, int rowIndex, T value) {
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79 | if (IsFiltered)
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80 | throw new InvalidOperationException("SetValues not possible while data is filtered");
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81 | originalData.SetCell<T>(columnIndex, rowIndex, value);
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82 | }
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83 |
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84 | public string GetCellAsString(int columnIndex, int rowIndex) {
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85 | return ActiveData.GetCellAsString(columnIndex, rowIndex);
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86 | }
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87 |
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88 | public IEnumerable<T> GetValues<T>(int columnIndex, bool considerSelection) {
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89 | return ActiveData.GetValues<T>(columnIndex, considerSelection);
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90 | }
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91 |
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92 | public void SetValues<T>(int columnIndex, IEnumerable<T> values) {
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93 | if (IsFiltered)
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94 | throw new InvalidOperationException("SetValues not possible while data is filtered");
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95 |
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96 | originalData.SetValues<T>(columnIndex, values);
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97 | }
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98 |
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99 | public bool SetValue(string value, int columnIndex, int rowIndex) {
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100 | if (IsFiltered)
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101 | throw new InvalidOperationException("SetValue not possible while data is filtered");
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102 | return originalData.SetValue(value, columnIndex, rowIndex);
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103 | }
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104 |
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105 | public int Columns {
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106 | get { return ActiveData.Columns; }
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107 | }
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108 |
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109 | public int Rows {
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110 | get { return ActiveData.Rows; }
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111 | }
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112 | #endregion
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113 |
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114 | #region Rows
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115 | public void InsertRow(int rowIndex) {
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116 | if (IsFiltered)
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117 | throw new InvalidOperationException("InsertRow not possible while data is filtered");
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118 |
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119 | originalData.InsertRow(rowIndex);
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120 | }
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121 |
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122 | public void DeleteRow(int rowIndex) {
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123 | if (IsFiltered)
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124 | throw new InvalidOperationException("DeleteRow not possible while data is filtered");
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125 |
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126 | originalData.DeleteRow(rowIndex);
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127 | }
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128 |
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129 | public void DeleteRows(IEnumerable<int> rows) {
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130 | if (IsFiltered)
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131 | throw new InvalidOperationException("DeleteRowsWithIndices not possible while data is filtered");
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132 |
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133 | originalData.DeleteRows(rows);
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134 | }
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135 |
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136 | public void InsertColumn<T>(string variableName, int columnIndex) {
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137 | if (IsFiltered)
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138 | throw new InvalidOperationException("InsertColumn not possible while data is filtered");
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139 |
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140 | originalData.InsertColumn<T>(variableName, columnIndex);
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141 | }
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142 |
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143 | public void DeleteColumn(int columnIndex) {
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144 | if (IsFiltered)
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145 | throw new InvalidOperationException("DeleteColumn not possible while data is filtered");
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146 | originalData.DeleteColumn(columnIndex);
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147 | }
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148 |
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149 | public void RenameColumn(int columnIndex, string name) {
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150 | if (IsFiltered)
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151 | throw new InvalidOperationException("RenameColumn not possible while data is filtered");
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152 | originalData.RenameColumn(columnIndex, name);
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153 | }
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154 |
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155 | public void RenameColumns(IList<string> names) {
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156 | if (IsFiltered)
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157 | throw new InvalidOperationException("RenameColumns not possible while data is filtered");
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158 | originalData.RenameColumns(names);
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159 | }
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160 |
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161 | public bool AreAllStringColumns(IEnumerable<int> columnIndices) {
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162 | return originalData.AreAllStringColumns(columnIndices);
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163 | }
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164 | #endregion
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165 |
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166 | #region Variables
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167 | public IEnumerable<string> VariableNames {
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168 | get { return ActiveData.VariableNames; }
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169 | }
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170 | public IEnumerable<string> GetDoubleVariableNames() {
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171 | return originalData.GetDoubleVariableNames();
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172 | }
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173 | public string GetVariableName(int columnIndex) {
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174 | return ActiveData.GetVariableName(columnIndex);
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175 | }
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176 |
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177 | public int GetColumnIndex(string variableName) {
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178 | return ActiveData.GetColumnIndex(variableName);
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179 | }
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180 |
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181 | public bool VariableHasType<T>(int columnIndex) {
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182 | return originalData.VariableHasType<T>(columnIndex);
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183 | }
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184 |
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185 | public Type GetVariableType(int columnIndex) {
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186 | return ActiveData.GetVariableType(columnIndex);
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187 | }
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188 |
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189 | public IList<string> InputVariables {
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190 | get { return ActiveData.InputVariables; }
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191 | }
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192 |
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193 | public string TargetVariable {
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194 | get { return ActiveData.TargetVariable; }
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195 | } // optional
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196 | #endregion
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197 |
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198 | #region Partitions
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199 | public IntRange TrainingPartition {
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200 | get { return originalData.TrainingPartition; }
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201 | }
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202 |
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203 | public IntRange TestPartition {
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204 | get { return originalData.TestPartition; }
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205 | }
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206 | #endregion
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207 |
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208 | #region Transformations
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209 | public IList<ITransformation> Transformations {
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210 | get { return originalData.Transformations; }
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211 | }
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212 | #endregion
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213 |
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214 | #region Validation
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215 | public bool Validate(string value, out string errorMessage, int columnIndex) {
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216 | return originalData.Validate(value, out errorMessage, columnIndex);
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217 | }
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218 | #endregion
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219 |
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220 | #region Import & Export
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221 | public void Import(IDataAnalysisProblemData problemData) {
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222 | if (IsFiltered)
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223 | throw new InvalidOperationException("Import not possible while data is filtered");
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224 | originalData.Import(problemData);
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225 | }
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226 |
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227 | public Dataset ExportToDataset() {
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228 | return originalData.ExportToDataset();
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229 | }
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230 | #endregion
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231 |
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232 | #region Selection
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233 | public IDictionary<int, IList<int>> Selection {
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234 | get { return originalData.Selection; }
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235 | set { originalData.Selection = value; }
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236 | }
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237 |
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238 | public void ClearSelection() {
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239 | originalData.ClearSelection();
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240 | }
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241 |
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242 | public event EventHandler SelectionChanged {
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243 | add { originalData.SelectionChanged += value; }
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244 | remove { originalData.SelectionChanged -= value; }
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245 | }
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246 | #endregion
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247 |
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248 | #region Transactions
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249 | public event DataPreprocessingChangedEventHandler Changed {
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250 | add { originalData.Changed += value; }
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251 | remove { originalData.Changed -= value; }
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252 | }
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253 |
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254 | public bool IsUndoAvailable {
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255 | get { return IsFiltered ? false : originalData.IsUndoAvailable; }
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256 | }
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257 |
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258 | public void Undo() {
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259 | if (IsFiltered)
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260 | throw new InvalidOperationException("Undo not possible while data is filtered");
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261 |
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262 | originalData.Undo();
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263 | }
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264 |
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265 | public void InTransaction(Action action, DataPreprocessingChangedEventType type = DataPreprocessingChangedEventType.Any) {
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266 | if (IsFiltered)
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267 | throw new InvalidOperationException("Transaction not possible while data is filtered");
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268 | originalData.InTransaction(action, type);
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269 | }
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270 |
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271 | public void BeginTransaction(DataPreprocessingChangedEventType type) {
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272 | if (IsFiltered)
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273 | throw new InvalidOperationException("Transaction not possible while data is filtered");
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274 | originalData.BeginTransaction(type);
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275 | }
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276 |
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277 | public void EndTransaction() {
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278 | originalData.EndTransaction();
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279 | }
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280 | #endregion
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281 |
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282 | #region Filters
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283 | public void SetFilter(bool[] rowFilters) {
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284 | filteredData = (IPreprocessingData)originalData.Clone();
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285 | filteredData.InTransaction(() => {
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286 | for (int row = (rowFilters.Length - 1); row >= 0; --row) {
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287 | if (rowFilters[row]) {
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288 | filteredData.DeleteRow(row);
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289 | }
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290 | }
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291 | });
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292 | OnFilterChanged();
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293 | }
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294 |
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295 | public void PersistFilter() {
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296 | originalData.InTransaction(() => {
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297 | for (int i = 0; i < filteredData.Columns; ++i) {
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298 | if (filteredData.VariableHasType<double>(i)) {
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299 | originalData.SetValues<double>(i, filteredData.GetValues<double>(i));
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300 | } else if (filteredData.VariableHasType<string>(i)) {
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301 | originalData.SetValues<string>(i, filteredData.GetValues<string>(i));
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302 | } else if (filteredData.VariableHasType<DateTime>(i)) {
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303 | originalData.SetValues<DateTime>(i, filteredData.GetValues<DateTime>(i));
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304 | } else {
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305 | throw new ArgumentException("Data types of columns do not match");
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306 | }
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307 | }
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308 | });
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309 | ResetFilter();
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310 | }
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311 |
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312 | public void ResetFilter() {
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313 | filteredData = null;
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314 | OnFilterChanged();
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315 | }
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316 |
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317 | public bool IsFiltered {
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318 | get { return filteredData != null; }
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319 | }
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320 |
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321 | public event EventHandler FilterChanged;
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322 |
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323 | private void OnFilterChanged() {
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324 | if (FilterChanged != null) {
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325 | FilterChanged(this, new EventArgs());
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326 | }
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327 | }
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328 | #endregion
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329 | }
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330 | }
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