multiMessageOutput.h

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


#ifndef multiMessageOutput_H_
#define multiMessageOutput_H_

#include "messageOutput.h"
#include "smartPointer.h"
#include "messageBuffer.h"

#include <functional>
#include <set>

namespace MAKLogger
{

   class DT_DLL_LGRCORE DtMultiMessageOutput : public DtMessageOutput
   {
   public:
      virtual void outputMessages(const DtMessageBuffer& buffer);

      virtual void filterMessages(const DtMessageBuffer& buffer);

      virtual void addOutput(   DtMessageOutput* output);
      virtual void removeOutput(DtMessageOutput* output);
      virtual void clearOutputs();

   protected:

      struct filterAndSend : public std::unary_function<DtMessageOutput*, void>
      {
         filterAndSend(const DtMessageBuffer& messages) : myMessages(messages) {}
         void operator() (DtMessageOutput* output);
         const DtMessageBuffer& myMessages;
      };


      std::set<DtMessageOutput*> myOutputs;
   };

}

#endif