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// -*- IDL -*- $Id$
// This file contains the interface definitions for "Portable"
// Interceptor support.
// **********************************************************
// Notice that the Portable Interceptor specification
// is still under discussion in OMG and both the IDL
// and the implementation details in TAO will eventually
// change to conform with the PI spec in the future.
// **********************************************************
// Author (currently): Nanbor Wang <nanbor@cs.wustl.edu>
#include <corba.pidl>
#include <IOP.pidl>
#pragma prefix "TAO"
// The prefix should be changed to "omg.org" once the spec. gets
// finallized.
module PortableInterceptor
{
interface Cookie
{
// Cookie's are used to pass information among interceptors
// within a invocation or an upcall.
string myname ();
};
typedef sequence<Cookie> Cookies;
// Collections of Cookie's become Cookies'es.
interface Interceptor
{
// Base interface for Interceptors.
readonly attribute string name;
};
interface ServerRequestInterceptor : Interceptor
{
// Server side request interceptor definition.
void preinvoke (in unsigned long request_id,
in boolean response_expected,
in CORBA::Object objref,
in string operation_name,
inout IOP::ServiceContextList sc,
inout NVList arguments,
inout Cookies ck);
// Interception pointer before invoking the servant method.
// Currently, we don't pass NVList into the interceptor because
// I haven't figured out how to best optimize this stuff.
// In the future, NVList will contain all in and inout arguments
// of the operation.
void postinvoke (in unsigned long request_id,
in boolean response_expected,
in CORBA::Object objref,
in string operation_name,
inout IOP::ServiceContextList sc,
inout NVList arguments,
inout Cookies ck);
// Interception pointer after invoking the servant method.
// Currently, we don't pass NVList into the interceptor because
// I haven't figured out how to best optimize this stuff.
// In the future, NVList will contain all out, inout arguments
// and the return value of the operation.
void exception_occurred (in unsigned long request_id,
in boolean response_expected,
in CORBA::Object objref,
in string operation_name,
inout Cookies ck);
// Exception interception point.
};
interface ClientRequestInterceptor : Interceptor
{
// Client side interceptor.
void preinvoke (in unsigned long request_id,
in boolean response_expected,
in CORBA::Object objref,
in string operation_name,
inout IOP::ServiceContextList sc,
inout NVList arguments,
inout Cookies ck);
// Before remote invocation.
// Currently, we don't pass NVList into the interceptor because
// I haven't figured out how to best optimize this stuff.
// In the future, NVList will contain all in and inout arguments
// of the operation.
void postinvoke (in unsigned long request_id,
in boolean response_expected,
in CORBA::Object objref,
in string operation_name,
inout IOP::ServiceContextList sc,
inout NVList arguments,
inout Cookies ck);
// After returned from remote invocation.
// Currently, we don't pass NVList into the interceptor because
// I haven't figured out how to best optimize this stuff.
// In the future, NVList will contain all out, inout arguments
// and the return value of the operation.
void exception_occurred (in unsigned long request_id,
in boolean response_expected,
in CORBA::Object objref,
in string operation_name,
inout Cookies ck);
// Exception occurred.
};
};
#pragma prefix ""
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