[3636] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[11576] | 3 | * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[3636] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System.Linq;
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[4722] | 23 | using HeuristicLab.Common;
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[4068] | 24 | using HeuristicLab.Core;
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| 25 | using HeuristicLab.Data;
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[3636] | 26 | using HeuristicLab.Operators;
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| 27 | using HeuristicLab.Optimization;
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| 28 | using HeuristicLab.Parameters;
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[4722] | 29 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[3636] | 30 |
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| 31 | namespace HeuristicLab.Algorithms.TabuSearch {
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[4722] | 32 | [StorableClass]
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| 33 | [Item("TabuNeighborhoodAnalyzer", "Analyzes the tabu neighborhood")]
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[3658] | 34 | public class TabuNeighborhoodAnalyzer : SingleSuccessorOperator, IAnalyzer {
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[7172] | 35 | public virtual bool EnabledByDefault {
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| 36 | get { return true; }
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| 37 | }
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| 38 |
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[3659] | 39 | public ScopeTreeLookupParameter<BoolValue> IsTabuParameter {
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| 40 | get { return (ScopeTreeLookupParameter<BoolValue>)Parameters["IsTabu"]; }
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[3636] | 41 | }
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| 42 | public LookupParameter<PercentValue> PercentTabuParameter {
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| 43 | get { return (LookupParameter<PercentValue>)Parameters["PercentTabu"]; }
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| 44 | }
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| 45 | public LookupParameter<ResultCollection> ResultsParameter {
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| 46 | get { return (LookupParameter<ResultCollection>)Parameters["Results"]; }
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| 47 | }
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| 48 |
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[4722] | 49 | [StorableConstructor]
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| 50 | protected TabuNeighborhoodAnalyzer(bool deserializing) : base(deserializing) { }
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| 51 | protected TabuNeighborhoodAnalyzer(TabuNeighborhoodAnalyzer original, Cloner cloner)
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| 52 | : base(original, cloner) {
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| 53 | }
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| 54 | public override IDeepCloneable Clone(Cloner cloner) {
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| 55 | return new TabuNeighborhoodAnalyzer(this, cloner);
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| 56 | }
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[3636] | 57 | public TabuNeighborhoodAnalyzer()
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| 58 | : base() {
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[3659] | 59 | Parameters.Add(new ScopeTreeLookupParameter<BoolValue>("IsTabu", "A value that determines if a move is tabu or not."));
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[3636] | 60 | Parameters.Add(new LookupParameter<PercentValue>("PercentTabu", "Indicates how much of the neighborhood is tabu."));
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| 61 | Parameters.Add(new LookupParameter<ResultCollection>("Results", "The result collection where the value should be stored."));
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| 62 | }
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| 63 |
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| 64 | public override IOperation Apply() {
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| 65 | ItemArray<BoolValue> tabu = IsTabuParameter.ActualValue;
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[3809] | 66 | if (tabu.Length > 0) {
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| 67 | PercentValue value = PercentTabuParameter.ActualValue;
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| 68 | if (value == null) {
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| 69 | value = new PercentValue();
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| 70 | PercentTabuParameter.ActualValue = value;
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| 71 | }
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| 72 | value.Value = tabu.Where(x => x.Value).Count() / (double)tabu.Length;
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| 73 | ResultCollection results = ResultsParameter.ActualValue;
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| 74 | if (results != null) {
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| 75 | IResult result = null;
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| 76 | results.TryGetValue(PercentTabuParameter.ActualName, out result);
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| 77 | if (result != null)
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| 78 | result.Value = value;
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| 79 | else
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| 80 | results.Add(new Result(PercentTabuParameter.ActualName, "Indicates how much of the neighborhood is tabu.", (IItem)value.Clone()));
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| 81 | }
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[3636] | 82 | }
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| 83 | return base.Apply();
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| 84 | }
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| 85 | }
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| 86 | }
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