[2773] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[2790] | 3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[2773] | 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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[3211] | 23 | using System.Collections.Generic;
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[2773] | 24 | using System.Linq;
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| 25 | using HeuristicLab.Collections;
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[3376] | 26 | using HeuristicLab.Common;
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[2773] | 27 | using HeuristicLab.Core;
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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.Operators {
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| 32 | /// <summary>
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[3407] | 33 | /// A base class for operators which apply arbitrary many other operators of a specific type.
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[2773] | 34 | /// </summary>
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[3407] | 35 | [Item("MultiOperator<T>", "A base class for operators which apply arbitrary many other operators of a specific type.")]
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[3017] | 36 | [StorableClass]
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[3407] | 37 | public abstract class MultiOperator<T> : SingleSuccessorOperator where T : class, IOperator {
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| 38 | private List<IValueParameter<T>> operatorParameters;
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[2773] | 39 |
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[3317] | 40 | [Storable]
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[3407] | 41 | private ItemList<T> operators;
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| 42 | public ItemList<T> Operators {
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[2773] | 43 | get { return operators; }
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| 44 | }
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| 45 |
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[3407] | 46 | public MultiOperator()
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[2773] | 47 | : base() {
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[3407] | 48 | operators = new ItemList<T>();
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[3211] | 49 | Initialize();
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[2773] | 50 | }
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[3317] | 51 | [StorableConstructor]
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[3407] | 52 | protected MultiOperator(bool deserializing) : base(deserializing) { }
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[2773] | 53 |
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[3211] | 54 | [StorableHook(HookType.AfterDeserialization)]
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| 55 | private void Initialize() {
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[3317] | 56 | if (operators != null) RegisterOperatorsEvents();
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[3407] | 57 | operatorParameters = new List<IValueParameter<T>>();
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[3211] | 58 | for (int i = 0; i < Operators.Count; i++) {
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[3407] | 59 | IValueParameter<T> opParam = (IValueParameter<T>)Parameters[i.ToString()];
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[3211] | 60 | operatorParameters.Add(opParam);
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| 61 | opParam.ValueChanged += new EventHandler(opParam_ValueChanged);
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| 62 | }
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| 63 | }
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| 64 |
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[2773] | 65 | public override IDeepCloneable Clone(Cloner cloner) {
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[3407] | 66 | MultiOperator<T> clone = (MultiOperator<T>)base.Clone(cloner);
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| 67 | clone.operators = (ItemList<T>)cloner.Clone(operators);
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[3211] | 68 | clone.Initialize();
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[2773] | 69 | return clone;
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| 70 | }
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| 71 |
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| 72 | private void UpdateOperatorParameters() {
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[3407] | 73 | foreach (IValueParameter<T> opParam in operatorParameters) {
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[2773] | 74 | opParam.ValueChanged -= new EventHandler(opParam_ValueChanged);
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| 75 | Parameters.Remove(opParam.Name);
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| 76 | }
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[3211] | 77 | operatorParameters.Clear();
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[2773] | 78 | for (int i = 0; i < Operators.Count; i++) {
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[3407] | 79 | IValueParameter<T> opParam = new ValueParameter<T>(i.ToString(), string.Empty, Operators[i]);
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[2773] | 80 | opParam.ValueChanged += new EventHandler(opParam_ValueChanged);
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| 81 | Parameters.Add(opParam);
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[3211] | 82 | operatorParameters.Add(opParam);
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[2773] | 83 | }
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| 84 | }
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[3211] | 85 |
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| 86 | #region Events
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| 87 | private void RegisterOperatorsEvents() {
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[3445] | 88 | operators.ItemsAdded += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_ItemsAdded);
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| 89 | operators.ItemsRemoved += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_ItemsRemoved);
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| 90 | operators.ItemsReplaced += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_ItemsReplaced);
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| 91 | operators.ItemsMoved += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_ItemsMoved);
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| 92 | operators.CollectionReset += new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_CollectionReset);
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[3211] | 93 | }
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| 94 | private void DeregisterOperatorsEvents() {
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[3445] | 95 | operators.ItemsAdded -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_ItemsAdded);
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| 96 | operators.ItemsRemoved -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_ItemsRemoved);
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| 97 | operators.ItemsReplaced -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_ItemsReplaced);
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| 98 | operators.ItemsMoved -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_ItemsMoved);
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| 99 | operators.CollectionReset -= new CollectionItemsChangedEventHandler<IndexedItem<T>>(Operators_CollectionReset);
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[3211] | 100 | }
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[3445] | 101 | protected virtual void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[2773] | 102 | UpdateOperatorParameters();
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| 103 | }
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[3445] | 104 | protected virtual void Operators_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[2773] | 105 | UpdateOperatorParameters();
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| 106 | }
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[3445] | 107 | protected virtual void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[3407] | 108 | foreach (IndexedItem<T> item in e.Items)
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[3211] | 109 | operatorParameters[item.Index].Value = item.Value;
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[2773] | 110 | }
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[3445] | 111 | protected virtual void Operators_ItemsMoved(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[3407] | 112 | foreach (IndexedItem<T> item in e.Items)
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[3211] | 113 | operatorParameters[item.Index].Value = item.Value;
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[2773] | 114 | }
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[3445] | 115 | protected virtual void Operators_CollectionReset(object sender, CollectionItemsChangedEventArgs<IndexedItem<T>> e) {
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[2773] | 116 | UpdateOperatorParameters();
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| 117 | }
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| 118 | private void opParam_ValueChanged(object sender, EventArgs e) {
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[3407] | 119 | IValueParameter<T> opParam = (IValueParameter<T>)sender;
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[3211] | 120 | operators[operatorParameters.IndexOf(opParam)] = opParam.Value;
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[2773] | 121 | }
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[3211] | 122 | #endregion
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[2773] | 123 | }
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| 124 | }
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