//Editor-Info: -*- C++ -*-
//
//Subject: TOVE project / pducoder
//
//File: pducoder.h
//
//Version: $Revision: 1.6 $
//
//State: $State: Exp $
//
//Date: $Date: 1999/03/08 07:40:57 $
//
//Organisation:
//      Helsinki University of Technology
//      Laboratory of Telecommunications Software and Multimedia
// 
//Author:
//      Timo Kokkonen
//      Sami Raatikainen
//
//Description:
//      Base class for encoding and decoding PDUs using map and list.
//
//Copyright:
//      Copyright 1999 Helsinki University of Technology
//      ALL RIGHTS RESERVED BETWEEN JANUARY 1996 AND JUNE 1999.
//
//Licence:
//
//
//History:
//

#ifndef __SIG_PDUCODER_H__
#define __SIG_PDUCODER_H__

// NOTE !!! <map> included after bitstring.h or compiler gives an error ?!?!
//          <map> can come anywere ...

#include "pf/frame.h"
#include <list>
#include <map>
#include "iecoder.h"

class pduCoder
{
    public:
        virtual ~pduCoder(void);

        virtual void encode(pfFrame &frame_, pfMessenger *msg_);
        virtual void decode(pfFrame &frame_, pfMessenger *msg_);
        
        virtual void checkMandatoryIEs(void);
        
    protected:
        pduCoder(void);
        pduCoder(pfUlong PDUtype_);
        pfUlong getType(void) const;
        
        virtual void decodeHeader(pfFrame &frame_, pfMessenger *msg_) = 0;
        virtual void encodeHeader(pfFrame &frame_, pfMessenger *msg_) = 0;
        
        virtual void addIECoder(IECoder *coder_);
        virtual void resetVariables(void);
        
    private:
        typedef map<pfUlong, IECoder *, less<pfUlong> > IEmapType;
        typedef IEmapType::iterator mapIterType;
        IEmapType _IEmap;
        
        typedef list<IECoder *> IElistType;
        typedef IElistType::iterator listIterType;
        IElistType _IElist;
        
        pfUlong _PDUtype;
};

#endif // __SIG_PDUCODER_H__