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/**
* @file Table_Adapter.cpp
*
* $Id$
*
* @author Carlos O'Ryan <coryan@uci.edu>
*
*/
#include "tao/IORTable/Table_Adapter.h"
#include "tao/IORTable/IOR_Table_Impl.h"
#include "tao/ORB_Core.h"
#include "tao/Server_Strategy_Factory.h"
#include "tao/Object.h"
#include "tao/Stub.h"
#include "tao/ORB.h"
#include "tao/Profile.h"
ACE_RCSID (IORTable,
Table_Adapter,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_Table_Adapter::TAO_Table_Adapter (TAO_ORB_Core &orb_core)
: orb_core_ (orb_core),
root_ (),
closed_ (true),
enable_locking_ (orb_core_.server_factory ()->enable_poa_locking ()),
thread_lock_ (),
lock_ (TAO_Table_Adapter::create_lock (enable_locking_,
thread_lock_))
{
}
TAO_Table_Adapter::~TAO_Table_Adapter (void)
{
delete this->lock_;
}
/* static */
ACE_Lock *
TAO_Table_Adapter::create_lock (bool enable_locking,
TAO_SYNCH_MUTEX &thread_lock)
{
#if defined (ACE_HAS_THREADS)
if (enable_locking)
{
ACE_Lock *the_lock = 0;
ACE_NEW_RETURN (the_lock,
ACE_Lock_Adapter<TAO_SYNCH_MUTEX> (thread_lock),
0);
return the_lock;
}
#else
ACE_UNUSED_ARG (enable_locking);
ACE_UNUSED_ARG (thread_lock);
#endif /* ACE_HAS_THREADS */
ACE_Lock *the_lock = 0;
ACE_NEW_RETURN (the_lock,
ACE_Lock_Adapter<ACE_SYNCH_NULL_MUTEX> (),
0);
return the_lock;
}
void
TAO_Table_Adapter::open (void)
{
ACE_GUARD (ACE_Lock, ace_mon, *this->lock_);
TAO_IOR_Table_Impl *impl = 0;
ACE_NEW_THROW_EX (impl,
TAO_IOR_Table_Impl (),
CORBA::NO_MEMORY ());
this->root_ = impl;
this->closed_ = false;
}
void
TAO_Table_Adapter::close (int)
{
ACE_GUARD (ACE_Lock, ace_mon, *this->lock_);
this->closed_ = true;
// no need to release the impl now, that will happen in the
// destructor.
}
void
TAO_Table_Adapter::check_close (int)
{
}
int
TAO_Table_Adapter::priority (void) const
{
return static_cast<int> (TAO_DEFAULT_ADAPTER_REGISTRY_SIZE);
}
int
TAO_Table_Adapter::dispatch (TAO::ObjectKey &key,
TAO_ServerRequest &,
CORBA::Object_out forward_to)
{
TAO_IOR_Table_Impl_var rootref;
{
ACE_GUARD_RETURN (ACE_Lock,
ace_mon,
*this->lock_,
TAO_Adapter::DS_MISMATCHED_KEY);
if (this->closed_)
return TAO_Adapter::DS_MISMATCHED_KEY;
rootref = this->root_;
}
return this->find_object (key, forward_to) ? TAO_Adapter::DS_FORWARD
: TAO_Adapter::DS_MISMATCHED_KEY;
}
const char *
TAO_Table_Adapter::name (void) const
{
return "IORTable";
}
CORBA::Object_ptr
TAO_Table_Adapter::root (void)
{
return CORBA::Object::_duplicate (this->root_.in());
}
CORBA::Object_ptr
TAO_Table_Adapter::create_collocated_object (TAO_Stub *stub,
const TAO_MProfile &)
{
CORBA::Object_ptr result = CORBA::Object::_nil ();
if (! this->initialize_collocated_object (stub)) // 0 == success
{
// A reference was found in the table. The stub has been forwarded
// to this. The collocation indicators are now correct on the stub
// (although they may well now indicate that the stub is not in fact
// collocated at all).
ACE_NEW_RETURN (result,
CORBA::Object (stub,
stub->is_collocated (),
stub->collocated_servant ()),
CORBA::Object::_nil ());
}
return result;
}
CORBA::Long
TAO_Table_Adapter::initialize_collocated_object (TAO_Stub *stub)
{
// Get the effective profile set.
const TAO_MProfile &mp = stub->forward_profiles () ? *(stub->forward_profiles ())
: stub->base_profiles ();
TAO_PHandle j = 0;
// We only look at the key from the 0th profile but we only really care about
// corbaloc's here where all profiles share a single object key
TAO::ObjectKey_var key = mp.get_profile (j)->_key ();
CORBA::Object_var forward_to = CORBA::Object::_nil ();
CORBA::Boolean found = false;
try
{
found = this->find_object (key, forward_to.out ());
}
catch (const ::CORBA::Exception&)
{
}
if (found)
{
// This call will set the appropriate collocation values
// to correspond to the reference we found in the table.
stub->add_forward_profiles (forward_to->_stubobj ()->base_profiles ());
stub->next_profile ();
}
// 0 for success
return ! found;
}
CORBA::Long
TAO_Table_Adapter::find_object (TAO::ObjectKey &key,
CORBA::Object_out forward_to)
{
CORBA::String_var object_key;
TAO::ObjectKey::encode_sequence_to_string (object_key.out (), key);
try
{
CORBA::String_var ior = root_->find (object_key.in ());
forward_to = this->orb_core_.orb ()->string_to_object (ior.in ());
}
catch (const ::IORTable::NotFound&)
{
return 0;
}
return 1;
}
// ****************************************************************
TAO_Table_Adapter_Factory::TAO_Table_Adapter_Factory (void)
{
}
TAO_Adapter*
TAO_Table_Adapter_Factory::create (TAO_ORB_Core *oc)
{
TAO_Adapter* ptr = 0;
ACE_NEW_RETURN (ptr,
TAO_Table_Adapter (*oc),
0);
return ptr;
}
TAO_END_VERSIONED_NAMESPACE_DECL
ACE_FACTORY_DEFINE (TAO_IORTable, TAO_Table_Adapter_Factory)
ACE_STATIC_SVC_DEFINE (TAO_Table_Adapter_Factory,
ACE_TEXT ("TAO_IORTable"),
ACE_SVC_OBJ_T,
&ACE_SVC_NAME (TAO_Table_Adapter_Factory),
ACE_Service_Type::DELETE_THIS | ACE_Service_Type::DELETE_OBJ,
0)
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