lgrPacketFilter.h

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


#ifndef lgrPacketFilter_H_
#define lgrPacketFilter_H_

#include <lgrCore/lgrCore.h>

class DtString;

namespace MAKLogger
{
   class DtPacket;
   class DtMessageIOInfo;

   class DT_DLL_LGRCORE DtLgrPacketFilter
   {

   public:

      enum FilterCombinationOperator
      {
         Filter_And,
         Filter_Nand,
         Filter_Or,
         Filter_Nor,
         Filter_Xor
      };

   protected:

      DtLgrPacketFilter(FilterCombinationOperator operation = Filter_Or);      

   private:

      DtLgrPacketFilter(const DtLgrPacketFilter&);
      DtLgrPacketFilter& operator=(const DtLgrPacketFilter&);
      
   public:

      virtual ~DtLgrPacketFilter();



      virtual bool filterPacket(DtPacket* packet) = 0;

      virtual const DtString& type() const = 0;

      virtual void activate(const DtMessageIOInfo* info) = 0;

      virtual void deactivate() = 0;

      virtual char* serialize(int& size) const = 0;

      virtual int setFromSerialization(const char* data, int size) = 0;

      
      FilterCombinationOperator filterOperation() const;

   protected:

      void setFilterOperation(FilterCombinationOperator filterOperator);

   protected:

      FilterCombinationOperator myOperation;      

   };
}

#endif