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source: branches/GeneralizedQAP/HeuristicLab.Problems.Instances.CordeauGQAP/3.3/CordeauGQAPInstanceProvider.cs @ 7548

Last change on this file since 7548 was 7548, checked in by abeham, 12 years ago

#1614: changed according to architects review

File size: 3.9 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;
23using System.Collections.Generic;
24using System.IO;
25using System.Linq;
26using System.Reflection;
27using System.Text.RegularExpressions;
28
29namespace HeuristicLab.Problems.Instances.CordeauGQAP {
30  public class CordeauGQAPInstanceProvider : ProblemInstanceProvider<GQAPData> {
31    public override string Name {
32      get { return "Cordeau et al. GQAP instances"; }
33    }
34
35    public override string Description {
36      get { return "GQAP instances published by Cordeau, Gaudioso, Laporte, and Moccia."; }
37    }
38
39    public override Uri WebLink {
40      get { return null; }
41    }
42
43    public override string ReferencePublication {
44      get {
45        return @"Cordeau, J.-F., Gaudioso, M., Laporte, G., Moccia, L. 2006.
46A memetic heuristic for the generalized quadratic assignment problem.
47INFORMS Journal on Computing, 18, pp. 433–443.";
48      }
49    }
50
51    public override IEnumerable<IDataDescriptor> GetDataDescriptors() {
52      return Assembly.GetExecutingAssembly()
53          .GetManifestResourceNames()
54          .Where(x => x.EndsWith(".txt"))
55          .OrderBy(x => x)
56          .Select(x => new CordeauGQAPDataDescriptor(GetPrettyName(x), GetDescription(), x));
57    }
58
59    public override GQAPData LoadData(IDataDescriptor id) {
60      var descriptor = (CordeauGQAPDataDescriptor)id;
61      using (var stream = Assembly.GetExecutingAssembly()
62        .GetManifestResourceStream(descriptor.InstanceIdentifier)) {
63        var parser = new CordeauGQAPParser();
64        parser.Parse(stream);
65        var instance = Load(parser);
66
67        instance.Name = id.Name;
68        instance.Description = id.Description;
69
70        return instance;
71      }
72    }
73
74    public override GQAPData LoadData(string path) {
75      var parser = new CordeauGQAPParser();
76      parser.Parse(path);
77      var instance = Load(parser);
78
79      instance.Name = Path.GetFileName(path);
80      instance.Description = "Loaded from file \"" + path + "\" on " + DateTime.Now.ToString();
81
82      return instance;
83    }
84
85    public override void SaveData(GQAPData instance, string path) {
86      throw new NotSupportedException();
87    }
88
89    private GQAPData Load(CordeauGQAPParser parser) {
90      var instance = new GQAPData();
91      instance.Equipments = parser.Equipments;
92      instance.Locations = parser.Locations;
93      instance.Demands = parser.Demands;
94      instance.Capacities = parser.Capacities;
95      instance.Weights = parser.Weights;
96      instance.Distances = parser.Distances;
97      instance.InstallationCosts = parser.InstallationCosts;
98      instance.TransportationCosts = parser.TransportationCosts;
99      return instance;
100    }
101
102    private string GetPrettyName(string instanceIdentifier) {
103      return Regex.Match(instanceIdentifier, GetType().Namespace + @"\.Data\.(.*)\.txt").Groups[1].Captures[0].Value;
104    }
105
106    private string GetDescription() {
107      return "Embedded instance of plugin version " + Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyFileVersionAttribute), true).Cast<AssemblyFileVersionAttribute>().First().Version + ".";
108    }
109  }
110}
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