pMessageFactory.h

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/*********************************************************************
  ** Copyright (c) 1992-2010 VT MAK
 ** All rights reserved.
 *********************************************************************/

#ifndef pMessageFactory_H_
#define pMessageFactory_H_


 
#include <portal/pMessage.h>

namespace MAKVrExchange {

//
class DT_DLL_LIBPORTAL DtPortalMessageFactory
{
public:

   DtPortalMessageFactory();
   virtual ~DtPortalMessageFactory();

private:

   DtPortalMessageFactory(const DtPortalMessageFactory&);

   DtPortalMessageFactory& operator=(const DtPortalMessageFactory&);

public:

   DtPortalMessage *create(const void *message) const;

   template <typename T_Message>
   void registerCreator(const T_Message &msg);


   typedef DtPortalMessage *(*ShmMessageCreator)();
   void registerCreator(const DtPortalMessageKind& kind, 
                        const ShmMessageCreator& creator );


protected:

   typedef std::map<DtPortalMessageKind, ShmMessageCreator> KindCreateFunctionMap;
   KindCreateFunctionMap myCreatorFunctionMap;
};

template <typename T_Message>
inline void DtPortalMessageFactory::registerCreator(const T_Message &)
{
   myCreatorFunctionMap[T_Message::theKind] = T_Message::create;
}

inline void DtPortalMessageFactory::registerCreator(const DtPortalMessageKind& kind, 
                                                    const ShmMessageCreator& creator )
{
   myCreatorFunctionMap[kind] = creator;
}


}

#endif //end #ifndef pMessageFactory_H_