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source: branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Alba/Manipulators/AlbaManipulator.cs @ 12170

Last change on this file since 12170 was 6851, checked in by svonolfe, 13 years ago

Added support for multi depot CVRP instances (#1177)

File size: 2.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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 HeuristicLab.Core;
23using HeuristicLab.Encodings.PermutationEncoding;
24using HeuristicLab.Parameters;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26using HeuristicLab.Data;
27using HeuristicLab.Optimization;
28using HeuristicLab.Problems.VehicleRouting.Interfaces;
29using HeuristicLab.Problems.VehicleRouting.Encodings.General;
30using HeuristicLab.Common;
31
32namespace HeuristicLab.Problems.VehicleRouting.Encodings.Alba {
33  [Item("AlbaManipulator", "An operator which manipulates a VRP representation.")]
34  [StorableClass]
35  public abstract class AlbaManipulator : VRPManipulator, IAlbaOperator, IVRPManipulator, IStochasticOperator {
36    public ILookupParameter<IRandom> RandomParameter {
37      get { return (LookupParameter<IRandom>)Parameters["Random"]; }
38    }
39
40    [StorableConstructor]
41    protected AlbaManipulator(bool deserializing) : base(deserializing) { }
42
43    public AlbaManipulator()
44      : base() {
45        Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator which should be used for stochastic manipulation operators."));
46    }
47
48    protected AlbaManipulator(AlbaManipulator original, Cloner cloner)
49      : base(original, cloner) {
50    }
51
52    protected abstract void Manipulate(IRandom random, AlbaEncoding individual);
53
54    protected int FindCustomerLocation(int customer, AlbaEncoding individual) {
55      int pos = -1;
56      for (int i = 0; i < individual.Length; i++) {
57        if (individual[i] == customer) {
58          pos = i;
59          break;
60        }
61      }
62
63      return pos;
64    }
65
66    public override IOperation Apply() {
67      IVRPEncoding solution = VRPToursParameter.ActualValue;
68      if (!(solution is AlbaEncoding)) {
69        VRPToursParameter.ActualValue = AlbaEncoding.ConvertFrom(solution, ProblemInstance);
70      }
71
72      Manipulate(RandomParameter.ActualValue, VRPToursParameter.ActualValue as AlbaEncoding);
73      (VRPToursParameter.ActualValue as AlbaEncoding).Repair();
74
75      return base.Apply();
76    }
77  }
78}
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