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// -*- C++ -*-
// $Id$
// ============================================================================
//
// = LIBRARY
// TAO_LoadBalancing
//
// = FILENAME
// ReplicaLocator.h
//
// = AUTHOR
// Ossama Othman <ossama@uci.edu>
//
// ============================================================================
#ifndef TAO_REPLICA_LOCATOR_H
#define TAO_REPLICA_LOCATOR_H
#include "ace/pre.h"
#include "orbsvcs/LoadBalancingS.h"
#include "LoadBalancing_export.h"
# if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
# endif /* ACE_LACKS_PRAGMA_ONCE */
// Forward declaration.
class TAO_LB_LoadBalancer;
class TAO_LoadBalancing_Export TAO_LB_ReplicaLocator
: public virtual POA_PortableServer::ServantLocator
{
// = TITLE
// Class that provides request forwarding.
// = DESCRIPTION
// This is a Servant Locator implementation that forwards
// requests to a replica returned by the Load Balancer.
public:
TAO_LB_ReplicaLocator (TAO_LB_LoadBalancer *load_balancer);
// Constructor
// = The ServantLocator methods
virtual PortableServer::Servant preinvoke (
const PortableServer::ObjectId &oid,
PortableServer::POA_ptr adapter,
const char *operation,
PortableServer::ServantLocator::Cookie & the_cookie
TAO_ENV_ARG_DECL)
ACE_THROW_SPEC ((CORBA::SystemException,
PortableServer::ForwardRequest));
virtual void postinvoke (
const PortableServer::ObjectId &oid,
PortableServer::POA_ptr adapter,
const char *operation,
PortableServer::ServantLocator::Cookie the_cookie,
PortableServer::Servant the_servant
TAO_ENV_ARG_DECL);
private:
TAO_LB_LoadBalancer *load_balancer_;
// The load balancer implementation.
};
#include "ace/post.h"
#endif /* TAO_REPLICA_LOCATOR_H */
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