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// This may look like C, but it's really -*- C++ -*-
// $Id$
// ============================================================================
//
// = LIBRARY
// TAO
//
// = FILENAME
// Interceptor.h
//
// = DESCRIPTION
// This file contains two helper classes to simplify the support of
// interceptors in tao_idl generated code. All the helper classes
// implementations are in Interceptor.i file.
//
// A series of TAO_INTERCEPTOR* macros are also defined in the file.
// These macros allows us to disable/enable support of interceptors
// easily.
//
// I also put some default no-op implementation of the interceptor
// servants.
//
// = AUTHOR
// Nanbor Wang <nanbor@cs.wustl.edu>
//
// ============================================================================
#ifndef TAO_INTERCEPTOR_H
#define TAO_INTERCEPTOR_H
#include "ace/pre.h"
#include "tao/InterceptorC.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#if (TAO_HAS_INTERCEPTORS == 1)
# define TAO_INTERCEPTOR(X) X
# define TAO_INTERCEPTOR_CHECK ACE_TRY_CHECK
# define TAO_INTERCEPTOR_CHECK_RETURN(X) ACE_TRY_CHECK
# define TAO_INTERCEPTOR_THROW(X) ACE_TRY_THROW(X)
# define TAO_INTERCEPTOR_THROW_RETURN(X,Y) ACE_TRY_THROW(X)
#else
# define TAO_INTERCEPTOR(X)
# define TAO_INTERCEPTOR_CHECK ACE_CHECK
# define TAO_INTERCEPTOR_CHECK_RETURN(X) ACE_CHECK_RETURN (X)
# define TAO_INTERCEPTOR_THROW(X) ACE_THROW(X)
# define TAO_INTERCEPTOR_THROW_RETURN(X,Y) ACE_THROW_RETURN(X,Y)
#endif /* TAO_HAS_INTERCEPTORS */
#if (TAO_HAS_INTERCEPTORS == 1)
class TAO_Export TAO_ClientRequestInterceptor_Adapter
{
// = TITLE
// TAO_ClientRequestInterceptor_Adapter
//
// = DESCRIPTION
// A convenient helper class to invoke the client-side request
// interceptor(s) in tao_idl generated code. Currently, TAO only
// supports registerring of one interceptor. The class will only
// invoke the interceptor if there's one.
//
// In the future, when we extend TAO's interceptor registering
// mechanism, this class will be modified to invoke several
// interceptors in series.
public:
TAO_ClientRequestInterceptor_Adapter
(PortableInterceptor::ClientRequestInterceptor_ptr interceptor);
~TAO_ClientRequestInterceptor_Adapter (void);
CORBA::Boolean valid (void) const;
// Check if we have a valid interceptor.
void preinvoke (CORBA::ULong,
CORBA::Boolean,
CORBA::Object_ptr,
const char *,
IOP::ServiceContextList &,
CORBA::NVList_ptr &,
PortableInterceptor::Cookies &,
CORBA::Environment &);
void postinvoke (CORBA::ULong,
CORBA::Boolean,
CORBA::Object_ptr,
const char *,
IOP::ServiceContextList &,
CORBA::NVList_ptr &,
PortableInterceptor::Cookies &,
CORBA::Environment &);
void exception_occurred (CORBA::ULong,
CORBA::Boolean,
CORBA::Object_ptr,
const char *,
//IOP::ServiceContextList &,
//CORBA::Exception *&,
PortableInterceptor::Cookies &,
CORBA::Environment &);
private:
PortableInterceptor::ClientRequestInterceptor_var interceptor_;
};
class TAO_Export TAO_ServerRequestInterceptor_Adapter
{
// = TITLE
// TAO_ServerRequestInterceptor_Adapter
//
// = DESCRIPTION
// A convenient helper class to invoke the server-side request
// interceptor(s) in tao_idl generated code. Currently, TAO only
// supports registerring of one interceptor. The class will only
// invoke the interceptor if there's one.
//
// In the future, when we extend TAO's interceptor registering
// mechanism, this class will be modified to invoke several
// interceptors in series.
public:
TAO_ServerRequestInterceptor_Adapter
(PortableInterceptor::ServerRequestInterceptor_ptr interceptor);
~TAO_ServerRequestInterceptor_Adapter (void);
CORBA::Boolean valid (void) const;
// Check if we have a valid interceptor.
void preinvoke (CORBA::ULong,
CORBA::Boolean,
CORBA::Object_ptr,
const char *,
IOP::ServiceContextList &,
CORBA::NVList_ptr &,
PortableInterceptor::Cookies &,
CORBA::Environment &);
void postinvoke (CORBA::ULong,
CORBA::Boolean,
CORBA::Object_ptr,
const char *,
IOP::ServiceContextList &,
CORBA::NVList_ptr &,
PortableInterceptor::Cookies &,
CORBA::Environment &);
void exception_occurred (CORBA::ULong,
CORBA::Boolean,
CORBA::Object_ptr,
const char *,
//IOP::ServiceContextList &,
//CORBA::Exception *&,
PortableInterceptor::Cookies &,
CORBA::Environment &);
private:
PortableInterceptor::ServerRequestInterceptor_var interceptor_;
};
#endif /* TAO_HAS_INTERCEPTORS */
#if defined (__ACE_INLINE__)
#include "tao/Interceptor.i"
#endif /* defined INLINE */
#include "ace/post.h"
#endif /* TAO_INTERCEPTOR_H */
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