/*
<moRestartPerturb.h>
Copyright (C) DOLPHIN Project-Team, INRIA Lille - Nord Europe, 2006-2010

Sébastien Verel, 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  ue,
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".

In this respect, the user's attention is drawn to the risks associated
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*/

#ifndef _moRestartPerturb_h
#define _moRestartPerturb_h


#include <eoEvalFunc.h>
#include <eoInit.h>
#include <perturb/moPerturbation.h>
#include <memory/moCountMoveMemory.h>

/**
 * Restart Perturbation : restart when maximum number of iteration with no improvement is reached
 */
template< class Neighbor >
class moRestartPerturb : public moPerturbation<Neighbor>, public moCountMoveMemory<Neighbor> {

public:
	typedef typename Neighbor::EOT EOT;

	/**
	 * Default Constructor
	 * @param _init an initializer of solution
	 * @param _fullEval a full evaluation function
	 * @param _threshold maximum number of iteration with no improvement
	 */
	moRestartPerturb(eoInit<EOT>& _init, eoEvalFunc<EOT>& _fullEval, unsigned int _threshold):init(_init), fullEval(_fullEval), threshold(_threshold) {}

	/**
	 * Apply restart when necessary
	 * @param _solution to restart
	 * @return true
	 */
	bool operator()(EOT& _solution){
		if((*this).getCounter()>= threshold){
			init(_solution);
			fullEval(_solution);
			(*this).initCounter();
		}
		return true;
	}

private:
	eoInit<EOT>& init;
	eoEvalFunc<EOT>& fullEval;
	unsigned int threshold;
};


#endif