1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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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 HeuristicLab.Common;
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23 | using HeuristicLab.Core;
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24 | using HeuristicLab.Operators;
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25 | using HeuristicLab.Parameters;
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26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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27 |
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28 | namespace HeuristicLab.Algorithms.TabuSearch {
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29 | [Item("TabuListCreator", "An operator that creates a new empty tabu list. It can also replace an existing tabu list with a new empty one.")]
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30 | [StorableClass]
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31 | public class TabuListCreator : SingleSuccessorOperator {
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32 | public ValueLookupParameter<ItemList<IItem>> TabuListParameter {
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33 | get { return (ValueLookupParameter<ItemList<IItem>>)Parameters["TabuList"]; }
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34 | }
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35 | protected ScopeParameter CurrentScopeParameter {
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36 | get { return (ScopeParameter)Parameters["CurrentScope"]; }
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37 | }
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38 | public IScope CurrentScope {
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39 | get { return CurrentScopeParameter.ActualValue; }
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40 | }
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41 |
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42 | [StorableConstructor]
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43 | protected TabuListCreator(bool deserializing) : base(deserializing) { }
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44 | protected TabuListCreator(TabuListCreator original, Cloner cloner)
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45 | : base(original, cloner) {
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46 | }
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47 | public override IDeepCloneable Clone(Cloner cloner) {
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48 | return new TabuListCreator(this, cloner);
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49 | }
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50 |
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51 | public TabuListCreator()
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52 | : base() {
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53 | Parameters.Add(new ValueLookupParameter<ItemList<IItem>>("TabuList", "The tabu list.", new ItemList<IItem>()));
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54 | Parameters.Add(new ScopeParameter("CurrentScope", "The current scope."));
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55 | }
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56 |
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57 | public override IOperation Apply(IExecutionContext context) {
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58 | IVariable var;
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59 | CurrentScope.Variables.TryGetValue(TabuListParameter.ActualName, out var);
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60 | if (var != null)
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61 | var.Value = (IItem)TabuListParameter.ActualValue.Clone();
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62 | else
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63 | CurrentScope.Variables.Add(new Variable(TabuListParameter.ActualName, (IItem)TabuListParameter.ActualValue.Clone()));
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64 | return base.Apply(context);
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65 | }
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66 | }
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67 | }
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