1  #region License Information


2  /* HeuristicLab


3  * Copyright (C) 20022019 Heuristic and Evolutionary Algorithms Laboratory (HEAL)


4  *


5  * This file is part of HeuristicLab.


6  *


7  * HeuristicLab is free software: you can redistribute it and/or modify


8  * it under the terms of the GNU General Public License as published by


9  * the Free Software Foundation, either version 3 of the License, or


10  * (at your option) any later version.


11  *


12  * HeuristicLab is distributed in the hope that it will be useful,


13  * but WITHOUT ANY WARRANTY; without even the implied warranty of


14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the


15  * GNU General Public License for more details.


16  *


17  * You should have received a copy of the GNU General Public License


18  * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.


19  */


20  #endregion


21 


22  using HeuristicLab.Common;


23  using HeuristicLab.Core;


24  using HeuristicLab.Operators;


25  using HeuristicLab.Optimization;


26  using HeuristicLab.Parameters;


27  using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;


28 


29  namespace HeuristicLab.Encodings.PermutationEncoding {


30  [Item("InversionMoveGenerator", "Base class for all inversion (2opt) move generators.")]


31  [StorableClass]


32  public abstract class InversionMoveGenerator : SingleSuccessorOperator, IPermutationInversionMoveOperator, IMoveGenerator {


33  public override bool CanChangeName {


34  get { return false; }


35  }


36  public ILookupParameter<Permutation> PermutationParameter {


37  get { return (ILookupParameter<Permutation>)Parameters["Permutation"]; }


38  }


39  public ILookupParameter<InversionMove> InversionMoveParameter {


40  get { return (LookupParameter<InversionMove>)Parameters["InversionMove"]; }


41  }


42  protected ScopeParameter CurrentScopeParameter {


43  get { return (ScopeParameter)Parameters["CurrentScope"]; }


44  }


45 


46  [StorableConstructor]


47  protected InversionMoveGenerator(bool deserializing) : base(deserializing) { }


48  protected InversionMoveGenerator(InversionMoveGenerator original, Cloner cloner) : base(original, cloner) { }


49  public InversionMoveGenerator()


50  : base() {


51  Parameters.Add(new LookupParameter<Permutation>("Permutation", "The permutation for which moves should be generated."));


52  Parameters.Add(new LookupParameter<InversionMove>("InversionMove", "The moves that should be generated in subscopes."));


53  Parameters.Add(new ScopeParameter("CurrentScope", "The current scope where the moves should be added as subscopes."));


54  }


55 


56  public override IOperation Apply() {


57  Permutation p = PermutationParameter.ActualValue;


58  InversionMove[] moves = GenerateMoves(p);


59  Scope[] moveScopes = new Scope[moves.Length];


60  for (int i = 0; i < moveScopes.Length; i++) {


61  moveScopes[i] = new Scope(i.ToString());


62  moveScopes[i].Variables.Add(new Variable(InversionMoveParameter.ActualName, moves[i]));


63  }


64  CurrentScopeParameter.ActualValue.SubScopes.AddRange(moveScopes);


65  return base.Apply();


66  }


67 


68  protected abstract InversionMove[] GenerateMoves(Permutation permutation);


69  }


70  }

