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source: branches/DataPreprocessing/HeuristicLab.DataPreprocessing/3.3/Implementations/DataGridLogic.cs @ 10367

Last change on this file since 10367 was 10367, checked in by rstoll, 10 years ago
  • modified PreprocessingData, uses columnIndex now instead of variableName (is faster and more convenient), set variabelName based methods to Obsolete
  • Already changed SearchLogic, DataGridLogic, StatisticLogic as well as PreprocessingDataManipulation

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File size: 3.6 KB
Line 
1using System;
2using System.Collections.Generic;
3using System.Globalization;
4using System.Linq;
5using HeuristicLab.Data;
6
7namespace HeuristicLab.DataPreprocessing {
8  public class DataGridLogic : IDataGridLogic {
9
10    private IPreprocessingData preprocessingData;
11
12    public DataGridLogic(IPreprocessingData preprocessingData) {
13      this.preprocessingData = preprocessingData;
14    }
15
16    public int Rows {
17      get {
18        return preprocessingData.Rows;
19      }
20    }
21
22    public int Columns {
23      get {
24        return preprocessingData.Columns;
25      }
26    }
27
28    public IEnumerable<string> ColumnNames {
29      get {
30        return preprocessingData.VariableNames;
31      }
32    }
33
34    public string GetColumnTypeAsString(int columnIndex) {
35      if (preprocessingData.IsType<double>(columnIndex)) {
36        return "double";
37      } else if (preprocessingData.IsType<string>(columnIndex)) {
38        return "string";
39      } else if (preprocessingData.IsType<DateTime>(columnIndex)) {
40        return "DateTime";
41      }
42      return "Unknown Type";
43    }
44
45    public IEnumerable<string> RowNames {
46      get {
47        return Enumerable.Range(1, Rows).Select(n => n.ToString());
48      }
49    }
50
51    public bool Validate(string value, out string errorMessage, int columnIndex) {
52      if (columnIndex < 0 || columnIndex > preprocessingData.VariableNames.Count()) {
53        throw new ArgumentOutOfRangeException("column index is out of range");
54      }
55      bool valid = false;
56      if (preprocessingData.IsType<double>(columnIndex)) {
57        double val;
58        valid = double.TryParse(value, out val);
59        errorMessage = string.Empty;
60        if (!valid) {
61          errorMessage = "Invalid Value (Valid Value Format: \"" + FormatPatterns.GetDoubleFormatPattern() + "\")";
62        }
63      } else if (preprocessingData.IsType<string>(columnIndex)) {
64        valid = value != null;
65        errorMessage = string.Empty;
66        if (!valid) {
67          errorMessage = "Invalid Value (string must not be null)";
68        }
69      } else if (preprocessingData.IsType<DateTime>(columnIndex)) {
70        DateTime date;
71        valid = DateTime.TryParse(value, out date);
72        errorMessage = string.Empty;
73        if (!valid) {
74          errorMessage = "Invalid Value (Valid Value Format: \"" + CultureInfo.CurrentCulture.DateTimeFormat + "\"";
75        }
76      } else {
77        throw new ArgumentException("column " + columnIndex + " contains a non supported type.");
78      }
79
80      return valid;
81    }
82
83    public string GetValue(int rowIndex, int columnIndex) {
84      return preprocessingData.GetCellAsString(columnIndex, rowIndex);
85    }
86
87    public bool SetValue(string value, int rowIndex, int columnIndex) {
88      bool valid = false;
89      if (preprocessingData.IsType<double>(columnIndex)) {
90        double val;
91        valid = double.TryParse(value, out val);
92        if (valid) {
93          preprocessingData.SetCell<double>(columnIndex, rowIndex, val);
94        }
95      } else if (preprocessingData.IsType<string>(columnIndex)) {
96        valid = value != null;
97        if (valid) {
98          preprocessingData.SetCell<string>(columnIndex, rowIndex, value);
99        }
100      } else if (preprocessingData.IsType<DateTime>(columnIndex)) {
101        DateTime date;
102        valid = DateTime.TryParse(value, out date);
103        if (valid) {
104          preprocessingData.SetCell<DateTime>(columnIndex, rowIndex, date);
105        }
106      } else {
107        throw new ArgumentException("column " + columnIndex + " contains a non supported type.");
108      }
109
110      return valid;
111    }
112  }
113}
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