PresentationContext.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 _PRESENTATIONCONTEXT_H_
#define _PRESENTATIONCONTEXT_H_

#include "util/Observable.h"

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

#include "contextmanager/IContextManager.h"
#include "contextmanager/system/ISystemInfo.h"
using namespace ::br::pucrio::telemidia::ginga::core::contextmanager;

#include "config.h"

#if HAVE_MULTIDEVICE
#include "multidevice/services/IDeviceDomain.h"
using namespace ::br::pucrio::telemidia::ginga::core::multidevice;
#endif //HAVE_MULTIDEVICE

#include "system/thread/Thread.h"
using namespace ::br::pucrio::telemidia::ginga::core::system::thread;

#include "ContextBase.h"
#include "IPresentationContext.h"

#include "math.h"

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

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace ncl {
namespace adaptation {
namespace context {
    class PresentationContext : public IPresentationContext,
                public Observable, public IContextListener {

        private:
            GingaScreenID myScreen;
            map<string, string> contextTable;
            static IContextManager* contextManager;
            IContextListener* globalVarListener;
            pthread_mutex_t attrMutex;

#if HAVE_MULTIDEVICE
            IRemoteDeviceListener* devListener;
#else
            void* devListener;
#endif //HAVE_MULTIDEVICE

        public:
            PresentationContext(GingaScreenID screenId);
            virtual ~PresentationContext();

            void setPropertyValue(string propertyName, string value);
            void incPropertyValue(string propertyName);
            void decPropertyValue(string propertyName);
            set<string>* getPropertyNames();
            string getPropertyValue(string attributeId);

        private:
            void initializeUserContext();
            void initializeUserInfo(int currentUserId);
            void initializeSystemValues();

        public:
            void save();
            void setGlobalVarListener(IContextListener* listener);
            void receiveGlobalAttribution(string propertyName, string value);

#if HAVE_MULTIDEVICE
            void setRemoteDeviceListener(IRemoteDeviceListener* rdl);
#endif //HAVE_MULTIDEVICE
    };
}
}
}
}
}
}
}

#endif //_PRESENTATIONCONTEXT_H_