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source: branches/HeuristicLab.Hive_Milestone3/sources/HeuristicLab.Modeling/3.2/ProblemInjectorView.cs @ 3155

Last change on this file since 3155 was 1856, checked in by gkronber, 16 years ago

Moved problem injectors from GP.StructureIdentification projects into HeuristicLab.Modeling and made some necessary adjustments (project name, references, plugin dependencies). #635

File size: 5.9 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 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.ComponentModel;
25using System.Drawing;
26using System.Data;
27using System.Text;
28using System.Windows.Forms;
29using HeuristicLab.Core;
30using HeuristicLab.Data;
31using HeuristicLab.DataAnalysis;
32
33namespace HeuristicLab.Modeling {
34  public partial class ProblemInjectorView : ViewBase {
35    public ProblemInjector ProblemInjector {
36      get { return (ProblemInjector)Item; }
37      set { base.Item = value; }
38    }
39
40    public ProblemInjectorView()
41      : base() {
42      InitializeComponent();
43    }
44    public ProblemInjectorView(ProblemInjector problemInjector)
45      : this() {
46      ProblemInjector = problemInjector;
47      variablesView.Operator = problemInjector;
48      variablesView.Update();
49    }
50
51    protected override void RemoveItemEvents() {
52      operatorBaseVariableInfosView.Operator = null;
53      operatorBaseDescriptionView.Operator = null;
54      base.RemoveItemEvents();
55    }
56    protected override void AddItemEvents() {
57      base.AddItemEvents();
58      operatorBaseVariableInfosView.Operator = ProblemInjector;
59      operatorBaseDescriptionView.Operator = ProblemInjector;
60    }
61
62    protected override void UpdateControls() {
63      base.UpdateControls();
64      if (ProblemInjector == null) {
65        importInstanceButton.Enabled = false;
66      } else {
67        Dataset dataset = (Dataset)ProblemInjector.GetVariable("Dataset").Value;
68        datasetView.Dataset = dataset;
69        importInstanceButton.Enabled = true;
70      }
71    }
72
73    private void importInstanceButton_Click(object sender, EventArgs e) {
74      if (openFileDialog.ShowDialog(this) == DialogResult.OK) {
75        DatasetParser parser = new DatasetParser();
76        bool success = false;
77        try {
78          try {
79            parser.Import(openFileDialog.FileName, true);
80            success = true;
81          }
82          catch (DataFormatException ex) {
83            ShowWarningMessageBox(ex);
84            // not possible to parse strictly => clear and try to parse non-strict
85            parser.Reset();
86            parser.Import(openFileDialog.FileName, false);
87            success = true;
88          }
89        }
90        catch (DataFormatException ex) {
91          // if the non-strict parsing also failed then show the exception
92          ShowErrorMessageBox(ex);
93        }
94        if (success) {
95          Dataset dataset = (Dataset)ProblemInjector.GetVariable("Dataset").Value;
96          dataset.Rows = parser.Rows;
97          dataset.Columns = parser.Columns;
98          for (int i = 0; i < parser.VariableNames.Length; i++) {
99            dataset.SetVariableName(i, parser.VariableNames[i]);
100          }
101          dataset.Name = parser.ProblemName;
102          dataset.Samples = new double[dataset.Rows * dataset.Columns];
103          Array.Copy(parser.Samples, dataset.Samples, dataset.Columns * dataset.Rows);
104          TrySetVariable("TrainingSamplesStart", parser.TrainingSamplesStart);
105          TrySetVariable("TrainingSamplesStart", parser.TrainingSamplesStart);
106          TrySetVariable("TrainingSamplesEnd", parser.TrainingSamplesEnd);
107          TrySetVariable("ValidationSamplesStart", parser.ValidationSamplesStart);
108          TrySetVariable("ValidationSamplesEnd", parser.ValidationSamplesEnd);
109          TrySetVariable("TestSamplesStart", parser.TestSamplesStart);
110          TrySetVariable("TestSamplesEnd", parser.TestSamplesEnd);
111          TrySetVariable("TargetVariable", parser.TargetVariable);
112
113          IVariable var = ProblemInjector.GetVariable("AllowedFeatures");
114          if (var != null) {
115            ItemList<IntData> allowedFeatures = (ItemList<IntData>)var.Value;
116            allowedFeatures.Clear();
117            List<int> nonInputVariables = parser.NonInputVariables;
118            for (int i = 0; i < dataset.Columns; i++) {
119              if (!nonInputVariables.Contains(i)) allowedFeatures.Add(new IntData(i));
120            }
121          }
122          Refresh();
123        }
124      }
125    }
126
127    private void TrySetVariable(string name, int value) {
128      IVariable var = ProblemInjector.GetVariable(name);
129      if (var != null) {
130        ((IntData)var.Value).Data = value;
131      }
132    }
133
134    private void ShowWarningMessageBox(Exception ex) {
135      MessageBox.Show(ex.Message,
136                      "Warning - " + ex.GetType().Name,
137                      MessageBoxButtons.OK,
138                      MessageBoxIcon.Warning);
139    }
140    private void ShowErrorMessageBox(Exception ex) {
141      MessageBox.Show(BuildErrorMessage(ex),
142                      "Error - " + ex.GetType().Name,
143                      MessageBoxButtons.OK,
144                      MessageBoxIcon.Error);
145    }
146    private string BuildErrorMessage(Exception ex) {
147      StringBuilder sb = new StringBuilder();
148      sb.Append("Sorry, but something went wrong!\n\n" + ex.Message + "\n\n" + ex.StackTrace);
149
150      while (ex.InnerException != null) {
151        ex = ex.InnerException;
152        sb.Append("\n\n-----\n\n" + ex.Message + "\n\n" + ex.StackTrace);
153      }
154      return sb.ToString();
155    }
156  }
157}
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