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// -*- C++ -*-
// ===================================================================
/**
* @file GIOP_Message_Generator_Parser.h
*
* $Id$
*
* @author Balachandran Natarajan <bala@cs.wustl.edu>
*/
// ===================================================================
#ifndef TAO_GIOP_MESSAGE_GENERATOR_PARSER_H
#define TAO_GIOP_MESSAGE_GENERATOR_PARSER_H
#include /**/ "ace/pre.h"
#include "ace/Global_Macros.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/SystemException.h"
class TAO_Operation_Details;
class TAO_Target_Specification;
class TAO_OutputCDR;
class TAO_InputCDR;
class TAO_Pluggable_Reply_Params;
class TAO_Pluggable_Reply_Params_Base;
class TAO_GIOP_Locate_Status_Msg;
class TAO_GIOP_Locate_Request_Header;
class TAO_ServerRequest;
/**
* @class TAO_GIOP_Message_Generator_Parser
*
* @brief Base class for the GIOP Message generator and parser
*
* Version specific classes would inherit from this class. Strategy to
* determine which version of the GIOP request have we received and
* which version do we need to use to send messages.
*/
class TAO_Export TAO_GIOP_Message_Generator_Parser
{
public:
virtual ~TAO_GIOP_Message_Generator_Parser (void);
/// Write the request header in to @a msg
virtual int write_request_header (
const TAO_Operation_Details &opdetails,
TAO_Target_Specification &spec,
TAO_OutputCDR &msg) = 0;
/// Write the LocateRequest header
virtual int write_locate_request_header (
CORBA::ULong request_id,
TAO_Target_Specification &spec,
TAO_OutputCDR &msg) = 0;
/// Write the reply header in to @a output
virtual int write_reply_header (
TAO_OutputCDR &output,
TAO_Pluggable_Reply_Params_Base &reply
ACE_ENV_ARG_DECL)
ACE_THROW_SPEC ((CORBA::SystemException)) = 0;
/// Writes the locate _reply message in to the @a output
virtual int write_locate_reply_mesg (
TAO_OutputCDR &output,
CORBA::ULong request_id,
TAO_GIOP_Locate_Status_Msg &status) = 0;
/// Parse the Request Header from the incoming stream. This will do a
/// version specific parsing of the incoming Request header
virtual int parse_request_header (TAO_ServerRequest &) = 0;
/// Parse the Loacte Request Header from the incoming stream. This will do a
/// version specific parsing of the incoming Request header
virtual int parse_locate_header (
TAO_GIOP_Locate_Request_Header &) = 0;
/// Parse the reply message
virtual int parse_reply (TAO_InputCDR &input,
TAO_Pluggable_Reply_Params ¶ms);
/// Parse the locate reply message from the server
virtual int parse_locate_reply (TAO_InputCDR &input,
TAO_Pluggable_Reply_Params ¶ms);
/// Our versions
virtual CORBA::Octet major_version (void) = 0;
virtual CORBA::Octet minor_version (void) = 0;
/// Is the messaging object ready for processing BiDirectional
/// request/response?
virtual int is_ready_for_bidirectional (void);
/// The header length of a fragment
virtual size_t fragment_header_length (void) const = 0;
protected:
/// Marshall the reply status
void marshal_reply_status (TAO_OutputCDR &output,
TAO_Pluggable_Reply_Params_Base &reply);
};
#include /**/ "ace/post.h"
#endif /*TAO_GIOP_MESSAGE_GENERATOR_PARSER_H*/
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