1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using HeuristicLab.Problems.Instances.Types;
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23 | using System;
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24 | using System.Collections.Generic;
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25 | using System.IO;
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26 | using System.IO.Compression;
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27 | using System.Linq;
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28 | using System.Reflection;
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29 | using System.Text.RegularExpressions;
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30 |
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31 | namespace HeuristicLab.Problems.Instances.PermutationProblems.LinearOrdering {
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32 | public class LOPMBInstanceProvider : ProblemInstanceProvider<LOPData> {
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33 |
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34 | public override string Name
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35 | {
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36 | get { return "MB"; }
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37 | }
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38 |
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39 | public override string Description
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40 | {
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41 | get { return "Linear Ordering Problems MB test instances"; }
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42 | }
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43 |
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44 | public override Uri WebLink
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45 | {
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46 | get { return new Uri("http://www.optsicom.es/lolib/lop/MB.zip"); }
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47 | }
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48 |
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49 | public override string ReferencePublication
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50 | {
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51 | get { return String.Empty; }
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52 | }
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53 |
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54 | public override IEnumerable<IDataDescriptor> GetDataDescriptors() {
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55 | var instanceArchiveName = GetResourceName("MB.zip");
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56 | if (String.IsNullOrEmpty(instanceArchiveName)) yield break;
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57 |
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58 | using (var instanceStream = new ZipArchive(GetType().Assembly.GetManifestResourceStream(instanceArchiveName), ZipArchiveMode.Read)) {
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59 | foreach (var entry in instanceStream.Entries.Select(x => x.Name).OrderBy(x => x)) {
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60 | yield return new LOPDataDescriptor(Path.GetFileNameWithoutExtension(entry), GetDescription(), entry, null);
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61 | }
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62 | }
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63 | }
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64 |
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65 | public override LOPData LoadData(IDataDescriptor id) {
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66 | var descriptor = (LOPDataDescriptor)id;
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67 | var instanceArchiveName = GetResourceName("MB.zip");
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68 | using (var instancesZipFile = new ZipArchive(GetType().Assembly.GetManifestResourceStream(instanceArchiveName), ZipArchiveMode.Read)) {
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69 | var entry = instancesZipFile.GetEntry(descriptor.InstanceIdentifier);
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70 |
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71 | using (var stream = entry.Open()) {
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72 | var parser = new LOPParser();
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73 | parser.Parse(stream);
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74 | return Load(parser);
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75 | }
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76 | }
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77 | }
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78 |
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79 | public override bool CanImportData
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80 | {
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81 | get { return true; }
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82 | }
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83 | public override LOPData ImportData(string path) {
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84 | var parser = new LOPParser();
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85 | parser.Parse(path);
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86 | return Load(parser);
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87 | }
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88 |
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89 | private LOPData Load(LOPParser parser) {
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90 | var instance = new LOPData {
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91 | Name = parser.Name,
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92 | Description = parser.Description,
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93 | Dimension = parser.Dimension,
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94 | Matrix = parser.Matrix,
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95 | BestKnownPermutation = parser.BestKnownPermutation,
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96 | BestKnownQuality = parser.BestKnownQuality
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97 | };
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98 | return instance;
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99 | }
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100 |
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101 | public override bool CanExportData
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102 | {
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103 | get { return false; }
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104 | }
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105 |
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106 | private string GetDescription() {
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107 | return "Embedded instance of plugin version " + Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyFileVersionAttribute), true).Cast<AssemblyFileVersionAttribute>().First().Version + ".";
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108 | }
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109 |
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110 | protected virtual string GetResourceName(string fileName) {
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111 | return Assembly.GetExecutingAssembly().GetManifestResourceNames()
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112 | .SingleOrDefault(x => Regex.Match(x, @".*\.Data\." + fileName).Success);
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113 | }
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114 | }
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115 | }
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