#region License Information
/* HeuristicLab
* Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Reflection;
using System.Text.RegularExpressions;
namespace HeuristicLab.Problems.Instances.Scheduling {
public class JSSPORLIBInstanceProvider : ProblemInstanceProvider {
public override string Name {
get { return "ORLIB JSSP"; }
}
public override string Description {
get { return "Job shop scheduling problems from the Operations Research Library."; }
}
public override Uri WebLink {
get { return new Uri("http://people.brunel.ac.uk/~mastjjb/jeb/orlib/jobshopinfo.html"); }
}
public override string ReferencePublication {
get { return String.Empty; }
}
public override IEnumerable GetDataDescriptors() {
var instanceArchiveName = GetResourceName("JSSPORLIB.zip");
if (String.IsNullOrEmpty(instanceArchiveName)) yield break;
using (var instanceStream = new ZipArchive(GetType().Assembly.GetManifestResourceStream(instanceArchiveName), ZipArchiveMode.Read)) {
foreach (var entry in instanceStream.Entries.Select(x => x.Name).OrderBy(x => x)) {
yield return new JSSPORLIBDataDescriptor(Path.GetFileNameWithoutExtension(entry), GetDescription(), entry, null);
}
}
}
public override JSSPData LoadData(IDataDescriptor id) {
var descriptor = (JSSPORLIBDataDescriptor)id;
var instanceArchiveName = GetResourceName("JSSPORLIB.zip");
using (var instancesZipFile = new ZipArchive(GetType().Assembly.GetManifestResourceStream(instanceArchiveName), ZipArchiveMode.Read)) {
var entry = instancesZipFile.GetEntry(descriptor.InstanceIdentifier);
using (var stream = entry.Open()) {
var parser = new JSSPORLIBParser();
parser.Parse(stream);
return Load(parser);
}
}
}
public override bool CanImportData {
get { return true; }
}
public override JSSPData ImportData(string path) {
var parser = new JSSPORLIBParser();
parser.Parse(path);
return Load(parser);
}
private JSSPData Load(JSSPORLIBParser parser) {
var instance = new JSSPData {
Name = parser.Name,
Description = parser.Description,
Jobs = parser.Jobs,
Resources = parser.Resources,
ProcessingTimes = parser.ProcessingTimes,
Demands = parser.Demands,
DueDates = parser.DueDates
};
return instance;
}
public override bool CanExportData {
get { return true; }
}
public override void ExportData(JSSPData instance, string path) {
var parser = new JSSPORLIBParser {
Name = instance.Name,
Description = instance.Description,
Jobs = instance.Jobs,
Resources = instance.Resources,
ProcessingTimes = instance.ProcessingTimes,
Demands = instance.Demands,
DueDates = instance.DueDates
};
parser.Export(path);
}
private string GetDescription() {
return "Embedded instance of plugin version " + Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyFileVersionAttribute), true).Cast().First().Version + ".";
}
protected virtual string GetResourceName(string fileName) {
return Assembly.GetExecutingAssembly().GetManifestResourceNames()
.SingleOrDefault(x => Regex.Match(x, @".*\.Data\." + fileName).Success);
}
}
}