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// $Id$
// ============================================================================
//
// = LIBRARY
// TAO/tests/POA/Forwarding/Servant_Locator
//
// = FILENAME
// Servant_Locator.cpp
//
// = DESCRIPTION
// Implementation of MyFooServantLocator class , used with a POA
// having a NON_RETAIN policy.
//
// = AUTHOR
// Irfan Pyarali
// Michael Kircher
//
// ============================================================================
#include "Servant_Locator.h"
#include "MyFooServant.h"
ACE_RCSID(Forwarding, Servant_Locator, "$Id$")
MyFooServantLocator::MyFooServantLocator (CORBA::ORB_ptr orb_ptr,
CORBA::Object_ptr forward_to_ptr)
: orb_var_ (CORBA::ORB::_duplicate (orb_ptr)),
counter_ (0),
servant_ptr_ (0),
forward_to_var_ (CORBA::Object::_duplicate (forward_to_ptr)),
forwarding_ (0) // by default do not forward
{
}
MyFooServantLocator::~MyFooServantLocator ()
{
delete servant_ptr_;
}
PortableServer::Servant
MyFooServantLocator::preinvoke (const PortableServer::ObjectId &oid,
PortableServer::POA_ptr poa_ptr,
const char *operation,
PortableServer::ServantLocator::Cookie &cookie,
CORBA::Environment &env)
{
ACE_UNUSED_ARG (operation);
if (this->forwarding_ == 0) // do not forward
{
// Convert ObjectID to String.
CORBA::String_var s = PortableServer::ObjectId_to_string (oid);
// If ObjectID string has a Foo Substring create and return a
// MyFooServant.
this->counter_++;
if (ACE_OS::strstr (s.in (), "Foo") != 0)
{
if (this->servant_ptr_ == 0)
{
this->servant_ptr_ = new MySecondFooServant (orb_var_.in(),
this,
127);
// Return the servant as the cookie , used as a check when
// postinvoke is called on this MyFooServantLocator.
// cookie = servant;
}
// reuse the old servant
return this->servant_ptr_;
}
else
{
CORBA::Exception *exception = new CORBA::OBJECT_NOT_EXIST (CORBA::COMPLETED_NO);
env.exception (exception);
return 0;
}
}
else // now forward, in throwing the ForwardRequest Exception
{
// Throw forward exception
env.exception (new PortableServer::ForwardRequest (this->forward_to_var_.in ()));
ACE_DEBUG ((LM_DEBUG,"MyFooServantLocator::preinvoke: Threw the ForwardRequest exception.\n"));
return 0;
}
}
void
MyFooServantLocator::postinvoke (const PortableServer::ObjectId &oid,
PortableServer::POA_ptr poa,
const char *operation,
PortableServer::ServantLocator::Cookie cookie,
PortableServer::Servant p_servant,
CORBA::Environment &env)
{
ACE_UNUSED_ARG (oid);
ACE_UNUSED_ARG (poa);
ACE_UNUSED_ARG (operation);
ACE_UNUSED_ARG (cookie);
ACE_UNUSED_ARG (p_servant);
ACE_UNUSED_ARG (env);
}
void
MyFooServantLocator::forward (CORBA::Environment &env)
{
this->forwarding_ = 1;
}
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