source: branches/SpectralKernelForGaussianProcesses/HeuristicLab.Problems.Instances.VehicleRouting/3.4/GoldenFormat/GoldenFormatInstanceProvider.cs @ 10479

Last change on this file since 10479 was 10479, checked in by gkronber, 6 years ago

#2124 merged all changes from trunk to prepare for trunk-reintegration

File size: 2.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 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.IO;
24
25namespace HeuristicLab.Problems.Instances.VehicleRouting {
26  public abstract class GoldenFormatInstanceProvider : VRPInstanceProvider {
27    protected override VRPData LoadData(Stream stream) {
28      return LoadInstance(new GoldenParser(stream));
29    }
30
31    public override bool CanImportData {
32      get { return true; }
33    }
34    public override VRPData ImportData(string path) {
35      return LoadInstance(new GoldenParser(path));
36    }
37
38    private CVRPTWData LoadInstance(GoldenParser parser) {
39      parser.Parse();
40
41      var instance = new CVRPTWData();
42      instance.Dimension = parser.Vertices.GetLength(0) + 1;
43      instance.Coordinates = parser.Vertices;
44      instance.Capacity = parser.Capacity;
45      instance.Demands = parser.Demands;
46      switch (parser.WeightType) {
47        case GoldenParser.GoldenEdgeWeightType.EUC_2D:
48          instance.DistanceMeasure = DistanceMeasure.Euclidean; break;
49        case GoldenParser.GoldenEdgeWeightType.GEO:
50          instance.DistanceMeasure = DistanceMeasure.Geo; break;
51        default:
52          throw new InvalidDataException("The given edge weight is not supported by HeuristicLab.");
53      }
54
55      instance.ReadyTimes = new double[instance.Dimension];
56      instance.ServiceTimes = new double[instance.Dimension];
57      instance.DueTimes = new double[instance.Dimension];
58
59      for (int i = 0; i < instance.Dimension; i++) {
60        instance.ReadyTimes[i] = 0;
61        instance.ServiceTimes[i] = 0;
62        instance.DueTimes[i] = double.MaxValue;
63      }
64
65      if (parser.Distance > 0)
66        instance.DueTimes[0] = parser.Distance;
67
68      if (parser.Vehicles > 0)
69        instance.MaximumVehicles = parser.Vehicles;
70
71      instance.Name = parser.ProblemName;
72      instance.Description = parser.Comment
73        + Environment.NewLine + Environment.NewLine
74        + GetInstanceDescription();
75
76      return instance;
77    }
78  }
79}
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