//LAB_LicenseBegin==============================================================
//  Copyright (c) 2005-2006, Hicham GHORAYEB < ghorayeb@gmail.com >
//  All rights reserved.
//
//	This software is a Library for Adaptive Boosting. It provides a generic 
//	framework for the study of the Boosting algorithms. The framework provides 
//	the different tasks for boosting: Learning, Validation, Test, Profiling and 
//	Performance Analysis Tasks.
//
//	This Library was developped during my PhD studies at:
//	Ecole des Mines de Paris - Centre de Robotique( CAOR )
//	http://caor.ensmp.fr
//	under the supervision of Pr. Claude Laurgeau and Bruno Steux
//
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are met:
//
//      * Redistributions of source code must retain the above copyright
//        notice, this list of conditions and the following disclaimer.
//      * Redistributions in binary form must reproduce the above copyright
//        notice, this list of conditions and the following disclaimer
//        in the documentation and/or other materials provided with the distribution.
//      * Neither the name of the Ecole des Mines de Paris nor the names of
//        its contributors may be used to endorse or promote products
//        derived from this software without specific prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
//  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
//  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
//  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
//  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
//  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
//  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
//  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
//  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
//  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
//  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//================================================================LAB_LicenseEnd
#ifndef _LIBADABOOST_WEAK_LEARNER_H_
#define _LIBADABOOST_WEAK_LEARNER_H_

#include "LibAdaBoost/modules/Module.h"
using namespace modules;

#include "LibAdaBoost/samples/learningsets/ILearningSet.h"
using namespace samples::learningsets;

#include "LibAdaBoost/classifiers/IClassifier.h"
using namespace classifiers;

#include "LibAdaBoost/classifiers/features/WeakClassifier.h"
using namespace classifiers::features;

#include "LibAdaBoost/classifiers/features/IRandomWeakClassifierGenerator.h"
using namespace classifiers::features;

#include "LibAdaBoost/learners/wlinterfaces/WeakLearnerInterface.h"
using namespace learners::wlinterfaces;

#include <string>
using namespace std;

namespace learners{
	class IWeakLearner
		:public Module
	{
	public://Module
		virtual std::string GetName(void) const = 0;
		std::string GetType(void) const {return "IWeakLearner";}
		virtual void SetOptions(const modules::options::ModuleOptions &options) = 0;

	public:// IWeakLearner
		virtual WeakClassifier *GetNewWeakClassifier(double &error) = 0;
		virtual void SetRandomWeakClassifierGenerator(IRandomWeakClassifierGenerator *randomGen) = 0;
		virtual IRandomWeakClassifierGenerator *GetRandomWeakClassifierGenerator(void) = 0;
		virtual const std::string &GetWeakLearnerLog() const = 0;

		virtual const WeakLearnerInterface *GetWeakLearnerInterface(void) = 0;
		virtual void SetWeakLearnerInterface(const WeakLearnerInterface *wli) = 0;

	public:// ILearner
		virtual ILearningSet *GetLearningSet(void) = 0;
		virtual void SetLearningSet(ILearningSet *learningSet) = 0;
	protected://ILearner
		virtual void Learn(void) = 0;
		virtual void Reset(void) = 0;
		virtual IClassifier *GetResult(void) = 0;
		virtual double GetResultError(void) const = 0;

		virtual const std::string &GetLearnerLog() const = 0;
	};
}
#endif