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source: addons/HeuristicLab.DataImporter/HeuristicLab.DataImporter.Command/Aggregation/DeleteRowsWithDuplicateKeyValuesCommand.cs @ 16994

Last change on this file since 16994 was 16994, checked in by gkronber, 5 years ago

#2520 Update plugin dependencies and references for HL.DataImporter for new persistence

File size: 2.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Linq;
25using HeuristicLab.DataImporter.Data;
26using HeuristicLab.DataImporter.Data.CommandBase;
27using HeuristicLab.DataImporter.Data.Model;
28using HEAL.Attic;
29
30namespace HeuristicLab.DataImporter.Command {
31  [StorableType("D5B50465-DB77-4CDE-9043-6968A841BF1C")]
32  [ViewableCommandInfoAttribute("Delete Rows", 1, ColumnGroupState.Sorted, "Aggregation", Position = 5)]
33  public class DeleteRowsWithDuplicateKeyValuesCommand : ColumnGroupCommandBase {
34    private Dictionary<int, IComparable[]> deletedRows;
35    [StorableConstructor]
36    protected DeleteRowsWithDuplicateKeyValuesCommand(StorableConstructorFlag _) : base(_) {
37      deletedRows = new Dictionary<int, IComparable[]>();
38    }
39
40    public DeleteRowsWithDuplicateKeyValuesCommand(DataSet dataSet, string columnGroupName)
41      : base(dataSet, columnGroupName) {
42      deletedRows = new Dictionary<int, IComparable[]>();
43    }
44
45    public override string Description {
46      get { return "Delete rows with duplicate key values"; }
47    }
48
49    public override void Execute() {
50      base.Execute();
51      if (!ColumnGroup.Columns.Any()) return;
52      if (!ColumnGroup.Sorted)
53        throw new CommandExecutionException("ColumnGroup must be sorted to delete rows with duplicate key.", this);
54
55      for (int i = 0; i < ColumnGroup.RowCount - 1; i++) {
56        if (ColumnGroup.KeyString(i) == ColumnGroup.KeyString(i + 1))
57          deletedRows[i + 1] = ColumnGroup.GetRow(i + 1);
58      }
59
60      foreach (int i in deletedRows.Keys.Reverse())
61        ColumnGroup.DeleteRow(i);
62
63      ColumnGroup.FireChanged();
64    }
65
66    public override void UndoExecute() {
67      base.UndoExecute();
68      foreach (KeyValuePair<int, IComparable[]> deletedRow in deletedRows)
69        ColumnGroup.InsertRow(deletedRow.Key, deletedRow.Value);
70      deletedRows.Clear();
71      ColumnGroup.FireChanged();
72
73    }
74  }
75}
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