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source: branches/ProblemInstancesRegressionAndClassification/HeuristicLab.Problems.Instances.Regression/3.4/ResourceRegressionInstanceProvider.cs @ 7664

Last change on this file since 7664 was 7664, checked in by sforsten, 12 years ago

#1784:

  • added Keijzer, Korns, Vladislavleva und Nguyen regression problem instances
  • changes have been made in the ProblemView. Some parts have been replaced with views from Problems.Instances.Views
File size: 2.2 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 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.IO;
23using System.Linq;
24using System.Reflection;
25
26namespace HeuristicLab.Problems.Instances.Regression {
27  public abstract class ResourceRegressionInstanceProvider : RegressionInstanceProvider {
28    public override RegressionData LoadData(IDataDescriptor id) {
29      var descriptor = (ResourceRegressionDataDescriptor)id;
30
31      RegressionData regData = LoadData(GetTempFileForResource(descriptor.resourceName));
32      regData.Name = descriptor.Name;
33      regData.Description = descriptor.Description;
34
35      return regData;
36    }
37
38    #region Helpers
39    protected static string GetTempFileForResource(string resourceName) {
40      Assembly assembly = Assembly.GetExecutingAssembly();
41      string resource = assembly.GetManifestResourceNames().Where(x => x.EndsWith(resourceName)).First();
42
43      string path = Path.GetTempFileName();
44
45      using (Stream stream = assembly.GetManifestResourceStream(resource)) {
46        WriteStreamToTempFile(stream, path);
47      }
48      return path;
49    }
50
51    private static void WriteStreamToTempFile(Stream stream, string path) {
52      using (FileStream output = new FileStream(path, FileMode.Create, FileAccess.Write)) {
53        int cnt = 0;
54        byte[] buffer = new byte[32 * 1024];
55        while ((cnt = stream.Read(buffer, 0, buffer.Length)) != 0)
56          output.Write(buffer, 0, cnt);
57      }
58    }
59    #endregion
60  }
61}
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