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ClientMessageEvent.h

/*
 * Copyright 2003 Michael A. Marsh, Cornell University. All rights reserved.
 * This software is released under the modified BSD license.
 * See the file LICENSE in the top-level directory for details.
 */
//
// $Id: ClientMessageEvent.h,v 1.3 2004/05/19 15:56:51 mmarsh Exp $
//
// $Log: ClientMessageEvent.h,v $
// Revision 1.3  2004/05/19 15:56:51  mmarsh
// *** empty log message ***
//
// Revision 1.2  2003/11/04 22:31:48  mmarsh
// *** empty log message ***
//
//

#ifndef __CODEX_KEYSERVICE_CLIENT_MESSAGE_EVENT_H__
#define __CODEX_KEYSERVICE_CLIENT_MESSAGE_EVENT_H__

#include "CODEX_Events/Event.h"
//#include "CODEX_Client/Message.h"

namespace CODEX_KeyService
{
   class ClientMessageHandler;

   class ClientMessageEventBase : public CODEX_Events::EventBase
   {
      public :
         ClientMessageEventBase( CODEX_Events::Activity* source ) :
            CODEX_Events::EventBase( source )
         {}

         virtual ~ClientMessageEventBase() {}

         virtual bool unmarshal( unsigned char ** pp, long length ) = 0;
   };

   template< class MT >
   class ClientMessageEvent : public ClientMessageEventBase
   {
      public :
         ClientMessageEvent( CODEX_Events::Activity* source,
                             ClientMessageHandler* destination ) :
            ClientMessageEventBase( source ),
            m_destination( destination )
         {}

         ClientMessageEvent( CODEX_Events::Activity* source,
                             ClientMessageHandler* destination,
                             const MT& message ) :
            ClientMessageEventBase( source ),
            m_message( message ),
            m_destination( destination )
         {}

         virtual ~ClientMessageEvent() {}

         ClientMessageHandler* destination() const { return m_destination; }

         const MT& message() const { return m_message; }

         bool handle() { return m_destination->handler( *this ); }

         void reRoute( ClientMessageHandler* newDestination )
         {
            m_destination = newDestination;
         }

         bool unmarshal( unsigned char ** pp, long length )
         {
            if ( NULL == m_message.unmarshal( NULL, pp, length ) )
            {
               return false;
            }
            return true;
         }

      private :
         MT m_message;

      protected :
         ClientMessageHandler* m_destination;
   };
}

#endif /* __CODEX_KEYSERVICE_CLIENT_MESSAGE_EVENT_H__ */

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