[15579] | 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 System;
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| 23 | using System.Collections.Generic;
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| 24 | using System.IO;
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| 25 | using System.IO.Compression;
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| 26 | using System.Linq;
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| 27 | using System.Reflection;
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| 28 | using System.Text.RegularExpressions;
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| 29 | using HeuristicLab.Problems.Instances;
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| 30 | using HeuristicLab.Problems.Instances.CordeauGQAP;
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| 31 |
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| 32 | namespace HeuristicLab.Problems.GeneralizedQuadraticAssignment.Instances {
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| 33 | public class GeneralizedQAPLIBInstanceProvider : ProblemInstanceProvider<GQAPData> {
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| 34 | public override string Name {
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| 35 | get { return "Generalized QAPLIB"; }
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| 36 | }
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| 37 |
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| 38 | public override string Description {
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| 39 | get { return "GQAP instances based on flow and distance matrices from QAPLIB instances."; }
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| 40 | }
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| 41 |
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| 42 | public override Uri WebLink {
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| 43 | get { return null; }
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| 44 | }
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| 45 |
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| 46 | public override string ReferencePublication {
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| 47 | get { return null; }
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| 48 | }
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| 49 |
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| 50 | private const string FileName = "Data";
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| 51 |
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| 52 | public override IEnumerable<IDataDescriptor> GetDataDescriptors() {
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| 53 | var instanceArchiveName = GetResourceName(FileName + @"\.zip");
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| 54 | if (String.IsNullOrEmpty(instanceArchiveName)) yield break;
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| 55 |
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| 56 | using (var instanceStream = new ZipArchive(GetType().Assembly.GetManifestResourceStream(instanceArchiveName), ZipArchiveMode.Read)) {
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| 57 | foreach (var entry in instanceStream.Entries.Select(x => x.Name).OrderBy(x => x)) {
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| 58 | yield return new GeneralizedQAPLIBInstanceDescriptor(Path.GetFileNameWithoutExtension(entry), GetDescription(), entry);
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| 59 | }
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| 60 | }
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| 61 | }
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| 62 |
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| 63 | public override GQAPData LoadData(IDataDescriptor id) {
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| 64 | var descriptor = (GeneralizedQAPLIBInstanceDescriptor)id;
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| 65 | var instanceArchiveName = GetResourceName(FileName + @"\.zip");
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| 66 | using (var instancesZipFile = new ZipArchive(GetType().Assembly.GetManifestResourceStream(instanceArchiveName), ZipArchiveMode.Read)) {
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| 67 | var entry = instancesZipFile.GetEntry(descriptor.InstanceIdentifier);
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| 68 | using (var stream = entry.Open()) {
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| 69 | var parser = new CordeauGQAPParser();
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| 70 | parser.Parse(stream);
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| 71 | var instance = Load(parser);
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| 72 |
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| 73 | instance.Name = id.Name;
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| 74 | instance.Description = id.Description;
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| 75 |
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| 76 | return instance;
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| 77 | }
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| 78 | }
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| 79 | }
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| 80 |
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| 81 | public override bool CanImportData {
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| 82 | get { return true; }
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| 83 | }
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| 84 | public override GQAPData ImportData(string path) {
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| 85 | var parser = new CordeauGQAPParser();
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| 86 | parser.Parse(path);
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| 87 | var instance = Load(parser);
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| 88 |
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| 89 | instance.Name = Path.GetFileName(path);
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| 90 | instance.Description = "Loaded from file \"" + path + "\" on " + DateTime.Now.ToString();
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| 91 |
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| 92 | return instance;
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| 93 | }
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| 94 |
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| 95 | private GQAPData Load(CordeauGQAPParser parser) {
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| 96 | var instance = new GQAPData();
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| 97 | instance.BestKnownQuality = parser.BestKnownQuality;
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| 98 | instance.Equipments = parser.Equipments;
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| 99 | instance.Locations = parser.Locations;
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| 100 | instance.Demands = parser.Demands;
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| 101 | instance.Capacities = parser.Capacities;
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| 102 | instance.Weights = parser.Weights;
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| 103 | instance.Distances = parser.Distances;
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| 104 | instance.InstallationCosts = parser.InstallationCosts;
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| 105 | instance.TransportationCosts = parser.TransportationCosts;
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| 106 | return instance;
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| 107 | }
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| 108 |
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| 109 | private string GetDescription() {
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| 110 | return "Embedded instance of plugin version " + Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyFileVersionAttribute), true).Cast<AssemblyFileVersionAttribute>().First().Version + ".";
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| 111 | }
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| 112 |
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| 113 | protected virtual string GetResourceName(string fileName) {
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| 114 | return Assembly.GetExecutingAssembly().GetManifestResourceNames()
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| 115 | .Where(x => Regex.Match(x, @".*\.Data\." + fileName).Success).SingleOrDefault();
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| 116 | }
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| 117 | }
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| 118 | }
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