#if !defined(RESIP_VIA_HXX)
#define RESIP_VIA_HXX 

#include <iosfwd>
#include "rutil/Data.hxx"
#include "resip/stack/ParserCategory.hxx"
#include "resip/stack/ParserContainer.hxx"

namespace resip
{
class PoolBase;

/**
   @ingroup sip_grammar
   @brief Represents the "via-parm" element in the RFC 3261 grammar.
*/
class Via : public ParserCategory
{
   public:
      enum {commaHandling = CommasAllowedOutputMulti};

      Via();
      Via(const HeaderFieldValue& hfv, 
            Headers::Type type,
            PoolBase* pool=0);
      Via(const Via& orig,
            PoolBase* pool=0);
      Via& operator=(const Via&);

      Data& protocolName();
      const Data& protocolName() const;
      Data& protocolVersion();
      const Data& protocolVersion() const;
      Data& transport();
      const Data& transport() const;
      Data& sentHost();
      const Data& sentHost() const;
      int& sentPort();
      int sentPort() const;

      virtual void parse(ParseBuffer& pb);
      virtual ParserCategory* clone() const;
      virtual ParserCategory* clone(void* location) const;
      virtual ParserCategory* clone(PoolBase* pool) const;
      virtual EncodeStream& encodeParsed(EncodeStream& str) const;

      // Inform the compiler that overloads of these may be found in
      // ParserCategory, too.
      using ParserCategory::exists;
      using ParserCategory::remove;
      using ParserCategory::param;

      virtual Parameter* createParam(ParameterTypes::Type type, ParseBuffer& pb, const std::bitset<256>& terminators, PoolBase* pool);
      bool exists(const Param<Via>& paramType) const;
      void remove(const Param<Via>& paramType);

#define defineParam(_enum, _name, _type, _RFC_ref_ignored)                      \
      const _enum##_Param::DType& param(const _enum##_Param& paramType) const;  \
      _enum##_Param::DType& param(const _enum##_Param& paramType); \
      friend class _enum##_Param

defineParam(branch, "branch", BranchParameter, "RFC 3261");
defineParam(comp, "comp", DataParameter, "RFC 3486");
defineParam(received, "received", ReceivedParameter, "RFC 3261");
defineParam(rport, "rport", RportParameter, "RFC 3581");
defineParam(ttl, "ttl", UInt32Parameter, "RFC 3261");
defineParam(sigcompId, "sigcomp-id", QuotedDataParameter, "RFC 5049");
defineParam(maddr, "maddr", DataParameter, "RFC 3261");

#undef defineParam

   private:
      Data mProtocolName;
      Data mProtocolVersion;
      Data mTransport;
      Data mSentHost;
      int mSentPort;

      static ParameterTypes::Factory ParameterFactories[ParameterTypes::MAX_PARAMETER];
};
typedef ParserContainer<Via> Vias;

 
}


#endif

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