// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-

//-----------------------------------------------------------------------------
// moeoArchiveFitnessSavingUpdater.h
// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2006
/*
    This library...

    Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
 */
//-----------------------------------------------------------------------------

#ifndef MOEOARCHIVEFITNESSSAVINGUPDATER_H_
#define MOEOARCHIVEFITNESSSAVINGUPDATER_H_

#include <fstream>
#include <string>
#include <eoPop.h>
#include <utils/eoUpdater.h>
#include <moeoArchive.h>

#define MAX_BUFFER_SIZE 1000

/**
 * This class allows to save the fitnesses of solutions contained in an archive into a file at each generation.
 */
template < class EOT > class moeoArchiveFitnessSavingUpdater:public eoUpdater
{
public:

  /**
   * Ctor
   * @param _arch local archive
   * @param _filename target filename
   * @param _id own ID
   */
moeoArchiveFitnessSavingUpdater (moeoArchive < EOT > &_arch, const std::string & _filename = "Res/Arch", int _id = -1):arch (_arch), filename (_filename), id (_id),
    counter
    (0)
  {
  }

  /**
   * Saves the fitness of the archive's members into the file
   */
  void operator () ()
  {
    char buff[MAX_BUFFER_SIZE];
    if (id == -1)
      sprintf (buff, "%s.%u", filename.c_str (), counter++);
    else
      sprintf (buff, "%s.%u.%u", filename.c_str (), id, counter++);
    std::ofstream f (buff);
    for (unsigned i = 0; i < arch.size (); i++)
      f << arch[i].fitness () << std::endl;
    f.close ();
  }


private:

	/** local archive */
  moeoArchive < EOT > &arch;
	/** target filename */
  std::string filename;
	/** own ID */
  int id;
	/** counter */
  unsigned counter;

};

#endif /*MOEOARCHIVEFITNESSSAVINGUPDATER_H_ */