pduFactory.h

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/*********************************************************************
** Copyright (c) 1992-2013 VT MAK
** All rights reserved.
*********************************************************************/



#pragma once

#if DtDIS

#include "pdu.h"
#include "vpRecord.h"
#include <vlutil/vlAttributePduStrategy.h>

class DtStandardVariableRecordFactory;

typedef DtPdu* (*DtPduCreator)(const DtNetPduHeader* packet,
   DtBufferPtr buffer, DtPduFactory* pduFactory);

typedef DtVPRecord* (*DtVPCreator)();

#define DtADD_PDU_CREATOR(x) \
   addCreator(Dt##x##PduKind, &Dt##x##Pdu::create);


class DT_DLL_VL DtPduFactory
{
public:

   DtPduFactory();

   virtual ~DtPduFactory();

   DtPduFactory(const DtPduFactory& orig);

   DtPduFactory& operator=(const DtPduFactory& orig);

   virtual DtPdu* createPdu(const DtNetPacket* packet,
      DtBufferPtr buffer = DtUSE_INTERNAL_BUFFER);

   virtual DtVPRecord* createVPRecord(DtVPRecordKind kind);

   virtual DtPduCreator addCreator(DtPduKind kind, DtPduCreator creator);


   virtual DtVPCreator addVPRecordCreator(DtVPRecordKind kind, DtVPCreator creator);

   virtual int packetGood(const DtNetPacket* packet) const;

   // This returns the current Standard Variable Factory
   virtual DtStandardVariableRecordFactory* standardVariableRecordFactory() const;

   // This sets the Standard Variable Factory.  In addition, it returns the previous one.
   virtual DtStandardVariableRecordFactory* setStandardVariableRecordFactory(DtStandardVariableRecordFactory* newFactory);

   virtual void setAttributePduStrategy(DtAttributePduStrategy strat);
   virtual DtAttributePduStrategy attributePduStrategy() const;

public:
   static int dfltPacketGood(const DtNetPacket* packet);

protected:

   DtPduCreator* myCreators;
   DtVPCreator* myVPCreators;

   DtStandardVariableRecordFactory* myStandardVariableFactory;
   DtAttributePduStrategy myAttributePduStrategy;

protected:

   static const int theMaxPduKinds;
};

#endif