source: branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/General/Manipulators/MultiVRPSolutionManipulator.cs @ 7855

Last change on this file since 7855 was 7855, checked in by svonolfe, 7 years ago

Deactivated LS manipulators by default (#1177)

File size: 4.3 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 System;
23using System.Linq;
24using HeuristicLab.Collections;
25using HeuristicLab.Core;
26using HeuristicLab.Operators;
27using HeuristicLab.Optimization;
28using HeuristicLab.Parameters;
29using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
30using HeuristicLab.PluginInfrastructure;
31using HeuristicLab.Data;
32using HeuristicLab.Problems.VehicleRouting.Interfaces;
33using HeuristicLab.Problems.VehicleRouting.Variants;
34using System.Collections.Generic;
35using HeuristicLab.Common;
36
37namespace HeuristicLab.Problems.VehicleRouting.Encodings.General {
38  [Item("MultiVRPSolutionManipulator", "Randomly selects and applies one of its manipulators every time it is called.")]
39  [StorableClass]
40  public class MultiVRPSolutionManipulator : StochasticMultiBranch<IVRPManipulator>, IVRPManipulator, IGeneralVRPOperator, IMultiVRPOperator, IStochasticOperator {
41    public override bool CanChangeName {
42      get { return false; }
43    }
44    protected override bool CreateChildOperation {
45      get { return true; }
46    }
47
48    public ILookupParameter<IVRPEncoding> VRPToursParameter {
49      get { return (ILookupParameter<IVRPEncoding>)Parameters["VRPTours"]; }
50    }
51
52
53    public ILookupParameter<IVRPProblemInstance> ProblemInstanceParameter {
54      get { return (LookupParameter<IVRPProblemInstance>)Parameters["ProblemInstance"]; }
55    }
56
57    [StorableConstructor]
58    protected MultiVRPSolutionManipulator(bool deserializing) : base(deserializing) { }
59    public MultiVRPSolutionManipulator()
60      : base() {
61      Parameters.Add(new LookupParameter<IVRPProblemInstance>("ProblemInstance", "The VRP problem instance"));
62      Parameters.Add(new LookupParameter<IVRPEncoding>("VRPTours", "The VRP tours to be manipulated."));
63    }
64
65    public override IDeepCloneable Clone(Cloner cloner) {
66      return new MultiVRPSolutionManipulator(this, cloner);
67    }
68
69    protected MultiVRPSolutionManipulator(MultiVRPSolutionManipulator original, Cloner cloner)
70      : base(original, cloner) {
71    }
72
73    protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<IVRPManipulator>> e) {
74      base.Operators_ItemsReplaced(sender, e);
75      ParameterizeManipulators();
76    }
77
78    protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<IVRPManipulator>> e) {
79      base.Operators_ItemsAdded(sender, e);
80      ParameterizeManipulators();
81    }
82
83    public void SetOperators(IEnumerable<IOperator> operators) {
84      foreach (IOperator op in operators) {
85        if (op is IVRPManipulator && !(op is MultiVRPSolutionManipulator)) {
86          Operators.Add(op.Clone() as IVRPManipulator, !(op is IVRPLocalSearchManipulator));
87        }
88      }
89    }
90
91    private void ParameterizeManipulators() {
92      foreach (IVRPManipulator manipulator in Operators.OfType<IVRPManipulator>()) {
93        manipulator.VRPToursParameter.ActualName = VRPToursParameter.Name;
94        manipulator.ProblemInstanceParameter.ActualName = ProblemInstanceParameter.Name;
95      }
96      foreach (IStochasticOperator manipulator in Operators.OfType<IStochasticOperator>()) {
97        manipulator.RandomParameter.ActualName = RandomParameter.Name;
98      }
99    }
100
101    public override IOperation Apply() {
102      if (Operators.Count == 0) throw new InvalidOperationException(Name + ": Please add at least one permutation manipulator to choose from.");
103      return base.Apply();
104    }
105  }
106}
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