paradiseo/contribution/branches/MOLS/src/moeoAllSolOneNeighborExpl.h

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/*
* <moeoAllSolOneNeighborExpl.h>
* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2008
* (C) OPAC Team, LIFL, 2002-2008
*
* Arnaud Liefooghe
* Jérémie Humeau
*
* This software is governed by the CeCILL license under French law and
* abiding by the rules of distribution of free software. You can use,
* modify and/ or redistribute the software under the terms of the CeCILL
* license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info".
*
* As a counterpart to the access to the source code and rights to copy,
* modify and redistribute granted by the license, users are provided only
* with a limited warranty and the software's author, the holder of the
* economic rights, and the successive licensors have only limited liability.
*
* In this respect, the user's attention is drawn to the risks associated
* with loading, using, modifying and/or developing or reproducing the
* software by the user in light of its specific status of free software,
* that may mean that it is complicated to manipulate, and that also
* therefore means that it is reserved for developers and experienced
* professionals having in-depth computer knowledge. Users are therefore
* encouraged to load and test the software's suitability as regards their
* requirements in conditions enabling the security of their systems and/or
* data to be ensured and, more generally, to use and operate it in the
* same conditions as regards security.
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL license and that you accept its terms.
*
* ParadisEO WebSite : http://paradiseo.gforge.inria.fr
* Contact: paradiseo-help@lists.gforge.inria.fr
*
*/
//-----------------------------------------------------------------------------
#ifndef _MOEOALLSOLONENEIGHBOREXPL_H
#define _MOEOALLSOLONENEIGHBOREXPL_H
#include <eo>
#include <moeo>
#include <moMove.h>
#include <moMoveInit.h>
#include <moNextMove.h>
#include <moMoveIncrEval.h>
#include <queue>
/**
* TODO
*/
template < class Move >
class moeoAllSolOneNeighborExpl : public moeoPopNeighborhoodExplorer < Move >
{
typedef typename Move::EOType MOEOT;
typedef typename MOEOT::ObjectiveVector ObjectiveVector;
public:
moeoAllSolOneNeighborExpl(
moMoveInit < Move > & _moveInit,
moNextMove < Move > & _nextMove,
moMoveIncrEval < Move, ObjectiveVector > & _incrEval)
: moveInit(_moveInit), nextMove(_nextMove), incrEval(_incrEval){}
void operator()(eoPop < MOEOT > & _src, eoPop < MOEOT > & _dest)
{
int id=0;
for (unsigned int i=0; i<_src.size(); i++)
{
//solution without move
if (_src[i].flag() == 0 )
{
//No move are available -> create a new Move
if (availableMove.empty())
{
//create a new move
Move newMove;
//add it to moveVector
moveVector.push_back(newMove);
//get the moveVector size
id = moveVector.size();
//add a flag to _src
_src[i].flag(-id);
//Init the move
moveInit(moveVector[id-1], _src[i]);
// Apply move or not
m(_src, _dest, i, moveVector[id-1]);
//If it the last move set solution as visited (flag >0) and set the move as available
if (!nextMove(moveVector[id-1], _src[i]))
{
_src[i].flag(1);
availableMove.push(id-1);
}
}
//A move is available -> get it
else
{
//get the id of an available move
id = availableMove.back();
//remove it from available move
availableMove.pop();
//add a flag to _src
_src[i].flag(-1 * (id+1));
//Init the move
moveInit(moveVector[id], _src[i]);
// Apply move or not
m(_src, _dest, i, moveVector[id]);
if (!nextMove(moveVector[id], _src[i]))
{
_src[i].flag(1);
availableMove.push(id);
}
}
}
//solution which have already a move -> do next move
else if (_src[i].flag() < 0)
{
id= (_src[i].flag() + 1) * -1;
m(_src, _dest, i, moveVector[id]);
if (!nextMove(moveVector[id], _src[i]))
{
_src[i].flag(1);
availableMove.push(id);
}
}
}
}
void m(eoPop < MOEOT > & _src, eoPop < MOEOT > & _dest, unsigned int i, Move & move)
{
ObjectiveVector objVec = incrEval(move, _src[i]);
// add the moved sol ?
if (! comparator (objVec, _src[i].objectiveVector()))
{
if (objVec != _src[i].objectiveVector())
{
_dest.push_back(_src[i]);
move(_dest.back());
_dest.back().objectiveVector(objVec);
_dest.back().flag(0);
}
}
}
private:
/** queue of available move */
std::queue < unsigned int > availableMove;
/** the move vector*/
std::vector < Move > moveVector;
/** the move initializer */
moMoveInit < Move > & moveInit;
/** the neighborhood explorer */
moNextMove < Move > & nextMove;
/** the incremental evaluation */
moMoveIncrEval < Move, ObjectiveVector > & incrEval;
/** comparator */
moeoParetoObjectiveVectorComparator<ObjectiveVector> comparator;
};
#endif /*_MOEOALLSOLONENEIGHBOREXPL_H_*/