DescriptorSwitch.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 _DESCRIPTORSWITCH_H_
#define _DESCRIPTORSWITCH_H_

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

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

#include "Rule.h"

extern "C" {
#include <pthread.h>
}

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

namespace br {
namespace pucrio {
namespace telemidia {
namespace ncl {
namespace switches {
    class DescriptorSwitch : public GenericDescriptor {
        private:
            vector<GenericDescriptor*>* descriptorList;
            vector<Rule*>* ruleList;
            GenericDescriptor* defaultDescriptor;
            GenericDescriptor* selectedDescriptor;

            static set<DescriptorSwitch*> objects;
            static bool initMutex;
            static pthread_mutex_t _objMutex;

            static void addInstance(DescriptorSwitch* object);
            static bool removeInstance(DescriptorSwitch* object);

        public:
            DescriptorSwitch(string id);
            virtual ~DescriptorSwitch();

            static bool hasInstance(
                    DescriptorSwitch* object, bool eraseFromList);

            bool addDescriptor(
                    unsigned int index,
                    GenericDescriptor* descriptor,
                    Rule* rule);

            bool addDescriptor(GenericDescriptor* descriptor, Rule* rule);
            bool containsRule(Rule* rule);
            void exchangeDescriptorsAndRules(
                    unsigned int index1,
                    unsigned int index2);

            int indexOfRule(Rule *rule);
            GenericDescriptor* getDefaultDescriptor();
            unsigned int indexOfDescriptor(GenericDescriptor* descriptor);
            GenericDescriptor* getDescriptor(unsigned int index);
            GenericDescriptor* getDescriptor(string descriptorId);
            GenericDescriptor* getDescriptor(Rule* rule);
            Rule* getRule(unsigned int index);
            unsigned int getNumDescriptors();
            unsigned int getNumRules();
            bool removeDescriptor(unsigned int index);
            bool removeDescriptor(GenericDescriptor* descriptor);
            bool removeRule(Rule *rule);
            void setDefaultDescriptor(GenericDescriptor* descriptor);
            void select(GenericDescriptor* descriptor);
            void selectDefault();
            GenericDescriptor* getSelectedDescriptor();
    };
}
}
}
}
}

#endif //_DESCRIPTORSWITCH_H_