RuleAdapter.h

/******************************************************************************
Este arquivo eh parte da implementacao do ambiente declarativo do middleware
Ginga (Ginga-NCL).

Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia

Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob
os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free
Software Foundation.

Este programa eh distribuido na expectativa de que seja util, porem, SEM
NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU
ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do
GNU versao 2 para mais detalhes.

Voce deve ter recebido uma copia da Licenca Publica Geral do GNU versao 2 junto
com este programa; se nao, escreva para a Free Software Foundation, Inc., no
endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA.

Para maiores informacoes:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
******************************************************************************
This file is part of the declarative environment of middleware Ginga (Ginga-NCL)

Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.

This program 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 General Public License version 2 for more
details.

You should have received a copy of the GNU General Public License version 2
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

For further information contact:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
*******************************************************************************/

#ifndef _RULEADAPTER_H_
#define _RULEADAPTER_H_

#include "../../model/CascadingDescriptor.h"
#include "../../model/CompositeExecutionObject.h"
#include "../../model/ExecutionObject.h"
using namespace ::br::pucrio::telemidia::ginga::ncl::model::components;

#include "../../model/ExecutionObjectSwitch.h"
using namespace ::br::pucrio::telemidia::ginga::ncl::model::switches;

#include "ncl/descriptor/GenericDescriptor.h"
using namespace ::br::pucrio::telemidia::ncl::descriptor;

#include "ncl/switches/DescriptorSwitch.h"
#include "ncl/switches/CompositeRule.h"
#include "ncl/switches/Rule.h"
#include "ncl/switches/SimpleRule.h"
#include "ncl/switches/SwitchNode.h"
using namespace ::br::pucrio::telemidia::ncl::switches;

#include "ncl/util/Comparator.h"
using namespace ::br::pucrio::telemidia::ncl::util;


#include "ncl/components/Node.h"
using namespace ::br::pucrio::telemidia::ncl::components;

#include "util/Observer.h"

#include "math.h"

#include "PresentationContext.h"

#include <map>
#include <vector>
#include <string>
using namespace std;

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace ncl {
namespace adaptation {
namespace context {
    class RuleAdapter : public Observer {
        private:
            PresentationContext* presContext;
            map<string, vector<Rule*>*>* ruleListenMap;
            map<Rule*, vector<ExecutionObjectSwitch*>*>* entityListenMap;
            map<Rule*, vector<DescriptorSwitch*>*>* descListenMap;

        public:
            RuleAdapter(PresentationContext* presContext);
            virtual ~RuleAdapter();

            void reset();

            PresentationContext* getPresentationContext();

            void adapt(CompositeExecutionObject* compositeObject, bool force);
            void initializeAttributeRuleRelation(
                    Rule* topRule,
                    Rule* rule);

            void initializeRuleObjectRelation(
                    ExecutionObjectSwitch* object);

            void adapt(
                ExecutionObjectSwitch* objectAlternatives,
                bool force);

            bool adaptDescriptor(ExecutionObject* executionObject);
            Node* adaptSwitch(SwitchNode* switchNode);
            bool evaluateRule(Rule* rule);

        private:
            bool evaluateCompositeRule(CompositeRule* rule);
            bool evaluateSimpleRule(SimpleRule* rule);

        public:
            virtual void update(void* arg0, void* arg1);
    };
}
}
}
}
}
}
}

#endif //_RULEADAPTER_H_