source: source/ariba/utility/misc/Demultiplexer.hpp@ 2418

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#ifndef DEMULTIPLEXER_H__

#define DEMULTIPLEXER_H__



#include <list>

#include <map>

#include <boost/thread/mutex.hpp>

#include <boost/foreach.hpp>

#include "ariba/utility/messages/Message.h"



using std::list;

using std::map;

using std::pair;

using ariba::utility::Message;



namespace ariba {

namespace utility {



template<typename S, typename T>

class Demultiplexer

{

private:



        typedef map<S,T>                                        SERVICE_LISTENER_MAP;

        typedef pair<S,T>                                       SERVICE_LISTENER_PAIR;

        typedef typename SERVICE_LISTENER_MAP::iterator         SERVICE_LISTENER_MAP_ITERATOR;

        typedef typename SERVICE_LISTENER_MAP::const_iterator   SERVICE_LISTENER_MAP_CITERATOR;



        typedef map<T,S>                                        LISTENER_SERVICE_MAP;

        typedef pair<T,S>                                       LISTENER_SERVICE_PAIR;

        typedef typename LISTENER_SERVICE_MAP::iterator         LISTENER_SERVICE_MAP_ITERATOR;

        typedef typename LISTENER_SERVICE_MAP::const_iterator   LISTENER_SERVICE_MAP_CITERATOR;



        SERVICE_LISTENER_MAP                                    mapServiceListener;

        LISTENER_SERVICE_MAP                                    mapListenerService;

        boost::mutex                                            mapMutex;



public:



        Demultiplexer() {

        }



        ~Demultiplexer() {

        }



        void registerItem( S id, T listener ) {

                boost::mutex::scoped_lock lock( mapMutex );

                {

                        mapServiceListener.insert( SERVICE_LISTENER_PAIR( id, listener ) );

                        mapListenerService.insert( LISTENER_SERVICE_PAIR( listener, id ) );

                }

        }



        void unregisterItem( S id) {

                T listener = get( id );



                boost::mutex::scoped_lock lock( mapMutex );

                {

                        mapServiceListener.erase( id );

                        mapListenerService.erase( listener );

                }

        }



        void unregisterItem( T listener ) {

                S id = get (listener);

                unregisterItem( id );

        }



        S get( T listener ) {

                boost::mutex::scoped_lock lock( mapMutex );

                {

                        LISTENER_SERVICE_MAP_CITERATOR it = mapListenerService.find( listener );

                        return it->second;

                }

        }



        T get( S id ) {

                boost::mutex::scoped_lock lock( mapMutex );

                {

                        SERVICE_LISTENER_MAP_CITERATOR it = mapServiceListener.find( id );



                        if( it == mapServiceListener.end() )    return NULL;

                        else                                    return it->second;

                }

        }



        bool contains( T listener ) {

                boost::mutex::scoped_lock lock( mapMutex );

                {

                        LISTENER_SERVICE_MAP_CITERATOR it = mapListenerService.find( listener );

                        return ( it != mapListenerService.end() );

                }

        }



        bool contains( S id ) {

                boost::mutex::scoped_lock lock( mapMutex );

                {

                        SERVICE_LISTENER_MAP_CITERATOR it = mapServiceListener.find( id );

                        return ( it != mapServiceListener.end() );

                }

        }



        typedef list<S> OneList;

        typedef list<T> TwoList;



        OneList getOneList() const {

                OneList ret;



                BOOST_FOREACH( SERVICE_LISTENER_PAIR i, mapServiceListener ){

                        ret.push_back( i.first );

                }



                return ret;

        }



        TwoList getTwoList() const {

                TwoList ret;



                BOOST_FOREACH( SERVICE_LISTENER_PAIR  i, mapServiceListener ){

                        ret.push_back( i.first );

                }



                return ret;

        }



};



}} // namespace ariba, common



#endif // DEMULTIPLEXER_H__