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source: branches/CFSAP/HeuristicLab.Problems.Instances.CFSAP/3.3/BozejkoCFSAPInstanceProvider.cs @ 14757

Last change on this file since 14757 was 14757, checked in by abeham, 7 years ago

#2747: Added CFSAP with optimal (polynomial) assignment algorithm

File size: 3.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 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.IO.Compression;
26using System.Linq;
27using System.Reflection;
28using System.Text.RegularExpressions;
29
30namespace HeuristicLab.Problems.Instances.CFSAP {
31  public class BozejkoCFSAPInstanceProvider : ProblemInstanceProvider<CFSAPData> {
32
33    public override string Name {
34      get { return "Bozejko (random CFSAP)"; }
35    }
36
37    public override string Description {
38      get { return string.Empty; }
39    }
40
41    public override Uri WebLink {
42      get { return null; }
43    }
44
45    public override string ReferencePublication {
46      get { return string.Empty; }
47    }
48
49    public override bool CanImportData {
50      get { return true; }
51    }
52
53    private CFSAPData LoadInstance(Stream stream) {
54      var parser = new BozejkoCFSAPParser();
55      parser.Parse(stream);
56      return new CFSAPData {
57        Jobs = parser.Jobs,
58        MachineNests = 2,
59        ProcessingTimes = parser.ProcessingTimes,
60        SetupTimes = parser.SetupTimes
61      };
62    }
63    public override CFSAPData ImportData(string path) {
64      var instance = LoadInstance(new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
65      instance.Name = Path.GetFileName(path);
66      instance.Description = "Imported from " + path + " " + DateTime.Now;
67      return instance;
68    }
69
70    public override IEnumerable<IDataDescriptor> GetDataDescriptors() {
71      var instanceArchiveName = GetResourceName(@"BozejkoCFSAP\.zip");
72      if (String.IsNullOrEmpty(instanceArchiveName)) yield break;
73
74      using (var instanceStream = new ZipArchive(GetType().Assembly.GetManifestResourceStream(instanceArchiveName), ZipArchiveMode.Read)) {
75        foreach (var entry in instanceStream.Entries.Select(x => x.Name).OrderBy(x => x)) {
76          yield return new BozejkoCFSAPDataDescriptor(Path.GetFileNameWithoutExtension(entry),
77                                                      GetInstanceDescription(), entry);
78        }
79      }
80    }
81
82    public override CFSAPData LoadData(IDataDescriptor id) {
83      var descriptor = (BozejkoCFSAPDataDescriptor)id;
84      var instanceArchiveName = GetResourceName(@"BozejkoCFSAP\.zip");
85      using (var instancesZipFile = new ZipArchive(GetType().Assembly.GetManifestResourceStream(instanceArchiveName), ZipArchiveMode.Read)) {
86        var entry = instancesZipFile.GetEntry(descriptor.InstanceIdentifier);
87        var instance = LoadInstance(entry.Open());
88        instance.Name = id.Name;
89        instance.Description = id.Description;
90        return instance;
91      }
92    }
93
94    private string GetResourceName(string fileName) {
95      return Assembly.GetExecutingAssembly()
96                     .GetManifestResourceNames()
97                     .SingleOrDefault(x => Regex.Match(x, @".*\.Data\." + fileName).Success);
98    }
99
100    private string GetInstanceDescription() {
101      return "Embedded instance of plugin version " + Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyFileVersionAttribute), true).Cast<AssemblyFileVersionAttribute>().First().Version + ".";
102    }
103
104  }
105}
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