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source: trunk/sources/HeuristicLab.Problems.Instances.VehicleRouting/3.4/GoldenFormat/GoldenFormatInstanceProvider.cs @ 7898

Last change on this file since 7898 was 7887, checked in by svonolfe, 12 years ago

Added support for the DCVRP in the Golden format (#1177)

File size: 2.9 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;
28using ICSharpCode.SharpZipLib.Zip;
29using HeuristicLab.Problems.Instances.TSPLIB;
30
31namespace HeuristicLab.Problems.Instances.VehicleRouting {
32  public abstract class GoldenFormatInstanceProvider : VRPInstanceProvider<CVRPTWData> {
33    protected override CVRPTWData LoadData(Stream stream) {
34      return LoadInstance(new GoldenParser(stream));
35    }
36
37    public override CVRPTWData LoadData(string path) {
38      return LoadInstance(new GoldenParser(path));
39    }
40
41    private CVRPTWData LoadInstance(GoldenParser parser) {
42      parser.Parse();
43
44      var instance = new CVRPTWData();
45      instance.Dimension = parser.Vertices.GetLength(0) + 1;
46      instance.Coordinates = parser.Vertices;
47      instance.Capacity = parser.Capacity;
48      instance.Demands = parser.Demands;
49      switch (parser.WeightType) {
50        case GoldenParser.GoldenEdgeWeightType.EUC_2D:
51          instance.DistanceMeasure = DistanceMeasure.Euclidean; break;
52        case GoldenParser.GoldenEdgeWeightType.GEO:
53          instance.DistanceMeasure = DistanceMeasure.Geo; break;
54        default:
55          throw new InvalidDataException("The given edge weight is not supported by HeuristicLab.");
56      }
57
58      instance.ReadyTimes = new double[instance.Dimension];
59      instance.ServiceTimes = new double[instance.Dimension];
60      instance.DueTimes = new double[instance.Dimension];
61
62      for (int i = 0; i < instance.Dimension; i++) {
63        instance.ReadyTimes[i] = 0;
64        instance.ServiceTimes[i] = 0;
65        instance.DueTimes[i] = double.MaxValue;
66      }
67
68      if(parser.Distance > 0)
69        instance.DueTimes[0] = parser.Distance;
70
71      if (parser.Vehicles > 0)
72        instance.MaximumVehicles = parser.Vehicles;
73
74      instance.Name = parser.ProblemName;
75      instance.Description = parser.Comment
76        + Environment.NewLine + Environment.NewLine
77        + GetInstanceDescription();
78
79      return instance;
80    }
81  }
82}
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