#region License Information
/* HeuristicLab
* Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using System.Collections.Generic;
using System.Linq;
using HeuristicLab.Collections;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Optimization;
using HeuristicLab.Optimization.Operators;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
namespace HeuristicLab.Encodings.LinearLinkageEncoding {
[Item("LLE Shaking Operator", "A shaking operator for VNS which uses LLE manipulators to perform the shaking.")]
[StorableType("B2583888-9D21-41D5-B7C9-A87D75DE5328")]
public class LLEShakingOperator : ShakingOperator, IStochasticOperator, ILinearLinkageShakingOperator {
public ILookupParameter RandomParameter {
get { return (LookupParameter)Parameters["Random"]; }
}
public ILookupParameter LLEParameter {
get { return (ILookupParameter)Parameters["LLE"]; }
}
public ICheckedItemList Shakers {
get { return Operators; }
}
[StorableConstructor]
protected LLEShakingOperator(bool deserializing) : base(deserializing) { }
protected LLEShakingOperator(LLEShakingOperator original, Cloner cloner) : base(original, cloner) { }
public LLEShakingOperator()
: base() {
Parameters.Add(new LookupParameter("LLE", "The encoding to shake."));
Parameters.Add(new LookupParameter("Random", "The random number generator that will be used for stochastic shaking operators."));
for (var i = 1; i < 4; i++) {
Operators.Add(new MoveItemManipulator(i * 2));
Operators.Add(new SwapItemManipulator(i * 2));
Operators.Add(new SplitGroupManipulator(i * 2));
Operators.Add(new MergeGroupManipulator(i * 2));
}
}
public override IDeepCloneable Clone(Cloner cloner) {
return new LLEShakingOperator(this, cloner);
}
#region Wiring of some parameters
protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs> e) {
base.Operators_ItemsAdded(sender, e);
ParameterizeOperators(e.Items);
}
protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs> e) {
base.Operators_ItemsReplaced(sender, e);
ParameterizeOperators(e.Items);
}
private void ParameterizeOperators(IEnumerable> items) {
if (!items.Any()) return;
foreach (var op in items.Select(x => x.Value).OfType())
op.RandomParameter.ActualName = RandomParameter.Name;
foreach (var op in items.Select(x => x.Value))
op.LLEParameter.ActualName = LLEParameter.Name;
}
#endregion
}
}