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source: branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/General/Moves/VRPMoveMaker.cs @ 4752

Last change on this file since 4752 was 4752, checked in by svonolfe, 13 years ago

Merged relevant changes from the trunk into the branch (cloning,...) (#1177)

File size: 4.1 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.Collections.Generic;
24using System.Linq;
25using System.Text;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27using HeuristicLab.Core;
28using HeuristicLab.Optimization;
29using HeuristicLab.Data;
30using HeuristicLab.Parameters;
31using HeuristicLab.Problems.VehicleRouting.Interfaces;
32using HeuristicLab.Common;
33
34namespace HeuristicLab.Problems.VehicleRouting.Encodings.General {
35  [Item("VRPMoveMaker", "Performs a VRP move.")]
36  [StorableClass]
37  public abstract class VRPMoveMaker : VRPMoveOperator, IMoveMaker {
38    public ILookupParameter<DoubleValue> QualityParameter {
39      get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
40    }
41    public ILookupParameter<DoubleValue> MoveQualityParameter {
42      get { return (ILookupParameter<DoubleValue>)Parameters["MoveQuality"]; }
43    }
44
45    [StorableConstructor]
46    protected VRPMoveMaker(bool deserializing) : base(deserializing) { }
47
48    public VRPMoveMaker()
49      : base() {
50      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the solution."));
51      Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The relative quality of the move."));
52    }
53
54    protected VRPMoveMaker(VRPMoveMaker original, Cloner cloner)
55      : base(original, cloner) {
56    }
57
58    protected abstract void PerformMove();
59
60    private void UpdateMoveEvaluation() {
61      IVRPEvaluator evaluator = ProblemInstance.EvaluatorParameter.Value;
62      ICollection<IParameter> addedParameters = new List<IParameter>();
63     
64      try {
65        foreach (IParameter parameter in evaluator.Parameters) {
66          if (parameter is ILookupParameter
67            && parameter != evaluator.VRPToursParameter
68            && parameter != evaluator.ProblemInstanceParameter) {
69            ILookupParameter evaluatorParameter = parameter as ILookupParameter;
70         
71            string resultName = evaluatorParameter.ActualName;
72            if (!this.Parameters.Exists(p => p.Name == resultName)) {
73              ILookupParameter resultParameter = new LookupParameter<IItem>(resultName);
74              resultParameter.ExecutionContext = ExecutionContext;
75              this.Parameters.Add(resultParameter);
76              addedParameters.Add(resultParameter);
77            }
78
79            string moveResultName = VRPMoveEvaluator.MovePrefix + resultName;
80            if (!this.Parameters.Exists(p => p.Name == moveResultName)) {
81              ILookupParameter moveResultParameter = new LookupParameter<IItem>(moveResultName);
82              moveResultParameter.ExecutionContext = ExecutionContext;
83              this.Parameters.Add(moveResultParameter);
84              addedParameters.Add(moveResultParameter);
85            }
86
87            ILookupParameter result = Parameters[resultName] as ILookupParameter;
88            ILookupParameter moveResult = Parameters[moveResultName] as ILookupParameter;
89            result.ActualValue = moveResult.ActualValue.Clone() as IItem;
90          }
91        }
92      }
93      finally {
94        foreach(IParameter parameter in addedParameters) {
95          this.Parameters.Remove(parameter);
96        }
97      }
98    }
99
100    public override IOperation Apply() {
101      PerformMove();
102      UpdateMoveEvaluation();
103     
104      return base.Apply();
105    }
106  }
107}
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