1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2013 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.Globalization;
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25 | using System.Linq;
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26 | using HeuristicLab.Data;
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27 | using HeuristicLab.DataPreprocessing.Implementations;
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28 |
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29 | namespace HeuristicLab.DataPreprocessing {
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30 | public class DataGridLogic : IDataGridLogic {
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31 |
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32 | private ITransactionalPreprocessingData preprocessingData;
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33 | private IEnumerable<string> rowNames;
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34 |
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35 | public DataGridLogic(ITransactionalPreprocessingData preprocessingData) {
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36 | this.preprocessingData = preprocessingData;
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37 | createRowNames();
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38 | }
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39 |
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40 | private void createRowNames() {
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41 | rowNames = Enumerable.Range(1, Rows).Select(n => n.ToString());
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42 | }
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43 |
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44 | public int Rows {
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45 | get {
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46 | return preprocessingData.Rows;
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47 | }
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48 | }
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49 |
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50 | public int Columns {
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51 | get {
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52 | return preprocessingData.Columns;
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53 | }
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54 | }
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55 |
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56 | public IEnumerable<string> ColumnNames {
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57 | get {
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58 | return preprocessingData.VariableNames;
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59 | }
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60 | }
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61 |
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62 | public IEnumerable<string> RowNames {
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63 | get {
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64 | return rowNames;
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65 | }
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66 | }
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67 |
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68 | public bool Validate(string value, out string errorMessage, int columnIndex) {
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69 | if (columnIndex < 0 || columnIndex > preprocessingData.VariableNames.Count()) {
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70 | throw new ArgumentOutOfRangeException("column index is out of range");
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71 | }
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72 | bool valid = false;
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73 | if (preprocessingData.IsType<double>(columnIndex)) {
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74 | double val;
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75 | valid = double.TryParse(value, out val);
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76 | errorMessage = string.Empty;
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77 | if (!valid) {
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78 | errorMessage = "Invalid Value (Valid Value Format: \"" + FormatPatterns.GetDoubleFormatPattern() + "\")";
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79 | }
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80 | } else if (preprocessingData.IsType<string>(columnIndex)) {
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81 | valid = value != null;
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82 | errorMessage = string.Empty;
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83 | if (!valid) {
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84 | errorMessage = "Invalid Value (string must not be null)";
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85 | }
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86 | } else if (preprocessingData.IsType<DateTime>(columnIndex)) {
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87 | DateTime date;
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88 | valid = DateTime.TryParse(value, out date);
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89 | errorMessage = string.Empty;
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90 | if (!valid) {
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91 | errorMessage = "Invalid Value (Valid Value Format: \"" + CultureInfo.CurrentCulture.DateTimeFormat + "\"";
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92 | }
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93 | } else {
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94 | throw new ArgumentException("column " + columnIndex + " contains a non supported type.");
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95 | }
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96 |
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97 | return valid;
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98 | }
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99 |
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100 | public string GetValue(int columnIndex, int rowIndex) {
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101 | return preprocessingData.GetCellAsString(columnIndex, rowIndex);
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102 | }
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103 |
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104 | public bool SetValue(string value, int columnIndex, int rowIndex) {
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105 | bool valid = false;
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106 | if (preprocessingData.IsType<double>(columnIndex)) {
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107 | double val;
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108 | valid = double.TryParse(value, out val);
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109 | SetValueIfValid(columnIndex, rowIndex, valid, val);
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110 | } else if (preprocessingData.IsType<string>(columnIndex)) {
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111 | valid = value != null;
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112 | SetValueIfValid(columnIndex, rowIndex, valid, value);
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113 | } else if (preprocessingData.IsType<DateTime>(columnIndex)) {
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114 | DateTime date;
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115 | valid = DateTime.TryParse(value, out date);
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116 | SetValueIfValid(columnIndex, rowIndex, valid, date);
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117 | } else {
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118 | throw new ArgumentException("column " + columnIndex + " contains a non supported type.");
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119 | }
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120 | return valid;
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121 | }
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122 |
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123 | private void SetValueIfValid<T>(int columnIndex, int rowIndex, bool valid, T value) {
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124 | if (valid) {
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125 | preprocessingData.SetCell<T>(columnIndex, rowIndex, value);
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126 | }
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127 | }
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128 |
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129 | public void DeleteRow(List<int> rows) {
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130 | preprocessingData.InTransaction(() => {
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131 | foreach (int rowIndex in rows) {
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132 | preprocessingData.DeleteRow(rowIndex);
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133 | }
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134 | });
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135 | createRowNames();
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136 | }
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137 |
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138 | public event DataPreprocessingChangedEventHandler Changed {
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139 | add { preprocessingData.Changed += value; }
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140 | remove { preprocessingData.Changed -= value; }
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141 | }
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142 |
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143 | public bool AreAllStringColumns(IEnumerable<int> columnIndices) {
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144 | return columnIndices.All(x => preprocessingData.IsType<string>(x));
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145 | }
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146 | }
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147 | }
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