[3601] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[11185] | 3 | * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[3601] | 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;
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[4722] | 23 | using HeuristicLab.Common;
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[3601] | 24 | using HeuristicLab.Core;
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| 25 | using HeuristicLab.Data;
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| 26 | using HeuristicLab.Operators;
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| 27 | using HeuristicLab.Optimization;
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| 28 | using HeuristicLab.Parameters;
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| 29 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 30 |
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| 31 | namespace HeuristicLab.Selection {
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| 32 | [Item("Replacer", "Generic replacer that replaces sub-scopes of the remaining scope with those from the selected scope.")]
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| 33 | [StorableClass]
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| 34 | public class Replacer : AlgorithmOperator, IReplacer {
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| 35 | public IValueLookupParameter<ISelector> ReplacedSelectorParameter {
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| 36 | get { return (IValueLookupParameter<ISelector>)Parameters["ReplacedSelector"]; }
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| 37 | }
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| 38 | public IValueLookupParameter<ISelector> SelectedSelectorParameter {
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| 39 | get { return (IValueLookupParameter<ISelector>)Parameters["SelectedSelector"]; }
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| 40 | }
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| 41 |
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| 42 | [StorableConstructor]
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[4722] | 43 | protected Replacer(bool deserializing) : base(deserializing) { }
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| 44 | protected Replacer(Replacer original, Cloner cloner) : base(original, cloner) { }
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| 45 | public override IDeepCloneable Clone(Cloner cloner) {
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| 46 | return new Replacer(this, cloner);
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| 47 | }
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[3601] | 48 | public Replacer() {
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[5408] | 49 | Parameters.Add(new ValueLookupParameter<ISelector>("ReplacedSelector", "The selection operator to select those scopes that are to be replaced. If no selection operator is defined, random selection will be applied."));
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| 50 | Parameters.Add(new ValueLookupParameter<ISelector>("SelectedSelector", "The selection operator to select those scopes that are replacing the others. If no selection operator is defined, random selection will be applied."));
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[3601] | 51 |
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| 52 | SubScopesProcessor ssp = new SubScopesProcessor();
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| 53 |
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| 54 | Placeholder replacedSelector = new Placeholder();
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| 55 | replacedSelector.OperatorParameter.ActualName = ReplacedSelectorParameter.Name;
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| 56 |
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| 57 | LeftReducer leftReducer = new LeftReducer();
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| 58 |
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| 59 | Placeholder selectedSelector = new Placeholder();
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| 60 | selectedSelector.OperatorParameter.ActualName = SelectedSelectorParameter.Name;
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| 61 |
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| 62 | RightReducer rightReducer = new RightReducer();
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| 63 |
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| 64 | MergingReducer merger = new MergingReducer();
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| 65 |
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| 66 | OperatorGraph.InitialOperator = ssp;
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| 67 | ssp.Operators.Add(replacedSelector);
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| 68 | ssp.Operators.Add(selectedSelector);
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| 69 | ssp.Successor = merger;
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| 70 | replacedSelector.Successor = leftReducer;
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| 71 | leftReducer.Successor = null;
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| 72 | selectedSelector.Successor = rightReducer;
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| 73 | rightReducer.Successor = null;
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| 74 | merger.Successor = null;
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| 75 | }
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| 76 |
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| 77 | public override IOperation Apply() {
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| 78 | if (ExecutionContext.Scope.SubScopes.Count != 2) throw new InvalidOperationException(Name + ": There must be two sub-scopes which should be replaced/merged.");
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| 79 | int remaining = ExecutionContext.Scope.SubScopes[0].SubScopes.Count;
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| 80 | int selected = ExecutionContext.Scope.SubScopes[1].SubScopes.Count;
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[4722] | 81 |
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[3601] | 82 | ISelector replacedSelector = ReplacedSelectorParameter.ActualValue;
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| 83 | ISelector selectedSelector = SelectedSelectorParameter.ActualValue;
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[4722] | 84 |
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[5376] | 85 | if (replacedSelector == null) {
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| 86 | ReplacedSelectorParameter.Value = new RandomSelector();
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| 87 | replacedSelector = ReplacedSelectorParameter.Value;
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[3601] | 88 | }
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[5376] | 89 | replacedSelector.CopySelected = new BoolValue(false);
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| 90 | replacedSelector.NumberOfSelectedSubScopesParameter.Value = new IntValue(Math.Min(remaining, selected));
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| 91 |
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| 92 | if (selectedSelector == null) {
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| 93 | SelectedSelectorParameter.Value = new RandomSelector();
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| 94 | selectedSelector = SelectedSelectorParameter.Value;
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[3601] | 95 | }
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[5376] | 96 | selectedSelector.CopySelected = new BoolValue(false);
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| 97 | selectedSelector.NumberOfSelectedSubScopesParameter.Value = new IntValue(Math.Min(remaining, selected));
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[3601] | 98 |
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| 99 | return base.Apply();
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| 100 | }
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| 101 | }
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| 102 | }
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