/*
 *  Open BEAGLE
 *  Copyright (C) 2001-2004 by Christian Gagne and Marc Parizeau
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact:
 *  Laboratoire de Vision et Systemes Numeriques
 *  Departement de genie electrique et de genie informatique
 *  Universite Laval, Quebec, Canada, G1V 4J7
 *  http://vision.gel.ulaval.ca
 *
 */

/*!
 *  \file   beagle/Coev/GPEvaluationOp.hpp
 *  \brief  Declaration of file Beagle::Coev::GPEvaluation.
 *  \author Christian Gagne
 *  \author Marc Parizeau
 *  $Revision: 1.4 $
 *  $Date: 2004/01/15 21:08:55 $
 */

#ifndef Beagle_Coev_GPEvaluation_hpp
#define Beagle_Coev_GPEvaluation_hpp

#include <string>

#include "Threading/Threading.hpp"

#include "beagle/config.hpp"
#include "beagle/macros.hpp"
#include "beagle/Object.hpp"
#include "beagle/AbstractAllocT.hpp"
#include "beagle/PointerT.hpp"
#include "beagle/ContainerT.hpp"
#include "beagle/EvaluationOp.hpp"
#include "beagle/Coev/EvaluationOp.hpp"
#include "beagle/GP.hpp"


namespace Beagle {
namespace Coev {

/*!
 *  \class GPEvaluationOp beagle/Coev/GPEvaluationOp.hpp "beagle/Coev/GPEvaluationOp.hpp"
 *  \brief Abstract co-evolution GP evaluation operator class.
 *  \ingroup COEVF
 */
class GPEvaluationOp : public Beagle::Coev::EvaluationOp {

public:

  //! Coev::GPEvaluationOp allocator type.
  typedef AbstractAllocT<GPEvaluationOp,Beagle::Coev::EvaluationOp::Alloc>
          Alloc;
  //! Coev::GPEvaluationOp handle type.
  typedef PointerT<GPEvaluationOp,Beagle::Coev::EvaluationOp::Handle>
          Handle;
  //! Coev::GPEvaluationOp bag type.
  typedef ContainerT<GPEvaluationOp,Beagle::Coev::EvaluationOp::Bag>
          Bag;
    
  explicit GPEvaluationOp(unsigned int inTrigger=1, std::string inName="Coev-GPEvaluationOp");
  virtual ~GPEvaluationOp() { }

  /*!
   *  \brief Evaluate fitness of a bunch of individual in an evaluation sets.
   *  \param ioSets Sets to evaluate fitness.
   *
   *  You cannot make assumption about the order of the evaluation sets are in
   *  the ioSets structure. These can change from evaluation to evaluation. Use
   *  struct EvalSet member inID to identify the evaluation sets you put into
   *  shared storage by call to add set. This ID is for convenience and is not used
   *  internally to identify sets.
   *
   *  Assign fitness value to individuals using method assignFitness, otherwise
   *  statistics value will be erroneous.
   */
  virtual void evaluateSets(std::vector<EvalSet>& ioSets) =0;

  /*!
   *  \brief Make evaluation sets from given deme.
   *  \param ioIndivBag Bag of individuals to evaluate.
   *  \param ioContext Evolutionary context.
   *
   *  This method is call one time at each generation, for each evolving
   *  thread/population. This method is problem-specific and consists
   *  to make evaluation sets that are mated with other thread/population
   *  evaluation sets for co-evolutionary fitness evaluation. Sets are added
   *  into a shared structure with a call to method addSet.
   */
  virtual void makeSets(Beagle::Individual::Bag& ioIndivBag,
                        Beagle::Context::Handle ioContext) =0;

  void setValue(std::string inName, const Object& inValue, GP::Context& ioContext) const;
  
};

}
}


#endif // Beagle_Coev_GPEvaluation_hpp

