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source: branches/3116_GAM_Interactions/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/ResourceRegressionInstanceProvider.cs @ 18242

Last change on this file since 18242 was 17180, checked in by swagner, 5 years ago

#2875: Removed years in copyrights

File size: 2.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 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.Globalization;
24using System.IO;
25using System.IO.Compression;
26using System.Linq;
27using System.Text.RegularExpressions;
28using HeuristicLab.Problems.DataAnalysis;
29
30namespace HeuristicLab.Problems.Instances.DataAnalysis {
31  public abstract class ResourceRegressionInstanceProvider : RegressionInstanceProvider {
32
33    protected abstract string FileName { get; }
34
35    public override IRegressionProblemData LoadData(IDataDescriptor id) {
36      var descriptor = (ResourceRegressionDataDescriptor)id;
37
38      var instanceArchiveName = GetResourceName(FileName + @"\.zip");
39      using (var instancesZipFile = new ZipArchive(GetType().Assembly.GetManifestResourceStream(instanceArchiveName), ZipArchiveMode.Read)) {
40        var entry = instancesZipFile.GetEntry(descriptor.ResourceName);
41        NumberFormatInfo numberFormat;
42        DateTimeFormatInfo dateFormat;
43        char separator;
44        using (Stream stream = entry.Open()) {
45          TableFileParser.DetermineFileFormat(stream, out numberFormat, out dateFormat, out separator);
46        }
47
48        TableFileParser csvFileParser = new TableFileParser();
49        using (Stream stream = entry.Open()) {
50          csvFileParser.Parse(stream, numberFormat, dateFormat, separator, true);
51        }
52
53        Dataset dataset = new Dataset(csvFileParser.VariableNames, csvFileParser.Values);
54        if (!descriptor.CheckVariableNames(csvFileParser.VariableNames)) {
55          throw new ArgumentException("Parsed file contains variables which are not in the descriptor.");
56        }
57
58        return descriptor.GenerateRegressionData(dataset);
59      }
60    }
61
62    protected virtual string GetResourceName(string fileName) {
63      return GetType().Assembly.GetManifestResourceNames()
64              .Where(x => Regex.Match(x, @".*\.Data\." + fileName).Success).SingleOrDefault();
65    }
66  }
67}
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