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#include "LB_ObjectReferenceFactory.h"
ACE_RCSID (LoadBalancing,
LB_ObjectReferenceFactory,
"$Id$")
#include "tao/debug.h"
// The number of different object groups to support.
#ifndef TAO_LB_ORF_GROUP_TABLE_SIZE
const size_t TAO_LB_ORF_GROUP_TABLE_SIZE = 16;
#endif /* TAO_LB_ORF_GROUP_TABLE_SIZE */
TAO_LB_ObjectReferenceFactory::TAO_LB_ObjectReferenceFactory (
PortableInterceptor::ObjectReferenceFactory * old_orf,
const CORBA::StringSeq & object_groups,
const CORBA::StringSeq & repository_ids,
const char * location,
CORBA::ORB_ptr orb,
CosLoadBalancing::LoadManager_ptr lm)
: old_orf_ (old_orf),
object_groups_ (object_groups),
repository_ids_ (repository_ids),
location_ (1),
table_ (TAO_LB_ORF_GROUP_TABLE_SIZE),
fcids_ (),
orb_ (CORBA::ORB::_duplicate (orb)),
lm_ (CosLoadBalancing::LoadManager::_duplicate (lm)),
registered_members_ (0)
{
// Claim ownership of the old ObjectReferenceFactory.
CORBA::add_ref (old_orf);
this->location_.length (1);
this->location_[0].id = CORBA::string_dup (location);
const CORBA::ULong len = repository_ids.length ();
ACE_NEW (this->registered_members_,
CORBA::Boolean[len]);
ACE_ASSERT (this->registered_members_ != 0);
ACE_OS::memset (this->registered_members_,
0,
len * sizeof (CORBA::Boolean));
}
TAO_LB_ObjectReferenceFactory::~TAO_LB_ObjectReferenceFactory (void)
{
// No need to call CORBA::remove_ref() on this->old_orf_. It is a
// "_var" object, meaning that will be done automatically.
ACE_DECLARE_NEW_CORBA_ENV;
if (!CORBA::is_nil (this->lm_.in ()))
{
const CORBA::ULong len = this->fcids_.size ();
for (CORBA::ULong i = 0; i < len; ++i)
{
ACE_TRY
{
// Clean up all object groups we created.
this->lm_->delete_object (this->fcids_[i].in ()
ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
}
ACE_CATCHANY
{
// Ignore all exceptions.
}
ACE_ENDTRY;
}
}
// @todo De-register LoadAlert objects.
// @todo De-register object group members.
delete [] this->registered_members_;
}
CORBA::Object_ptr
TAO_LB_ObjectReferenceFactory::make_object (
const char * repository_id,
const PortableInterceptor::ObjectId & id
ACE_ENV_ARG_DECL)
ACE_THROW_SPEC ((CORBA::SystemException))
{
if (repository_id == 0)
ACE_THROW_RETURN (CORBA::BAD_PARAM (), CORBA::Object::_nil ());
CORBA::Object_var obj =
this->old_orf_->make_object (repository_id,
id
ACE_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (CORBA::Object::_nil ());
PortableGroup::ObjectGroup_var object_group;
CORBA::ULong index = 0;
const CORBA::Boolean found_group =
this->find_object_group (repository_id,
index,
object_group.out ()
ACE_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (CORBA::Object::_nil ());
if (found_group)
{
// Be careful not to attempt duplicate registrations on
// subsequent object reference creation calls.
if (!this->registered_members_[index])
{
ACE_TRY
{
object_group =
this->lm_->add_member (object_group.in (),
this->location_,
obj.in ()
ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
}
ACE_CATCH (PortableGroup::ObjectGroupNotFound, ex)
{
if (TAO_debug_level > 0)
ACE_PRINT_EXCEPTION (ex,
"TAO_LB_ObjectReferenceFactory::"
"make_object");
ACE_THROW_RETURN (CORBA::BAD_PARAM (),
CORBA::Object::_nil ());
}
ACE_CATCH (PortableGroup::MemberAlreadyPresent, ex)
{
if (TAO_debug_level > 0)
ACE_PRINT_EXCEPTION (ex,
"TAO_LB_ObjectReferenceFactory::"
"make_object");
ACE_THROW_RETURN (CORBA::BAD_INV_ORDER (),
CORBA::Object::_nil ());
}
ACE_CATCH (PortableGroup::ObjectNotAdded, ex)
{
if (TAO_debug_level > 0)
ACE_PRINT_EXCEPTION (ex,
"TAO_LB_ObjectReferenceFactory::"
"make_object");
ACE_THROW_RETURN (CORBA::UNKNOWN (),
CORBA::Object::_nil ());
}
ACE_ENDTRY;
ACE_CHECK_RETURN (CORBA::Object::_nil ());
this->registered_members_[index] = 1;
}
// Return the object group reference instead.
return object_group._retn ();
}
// Not a load managed object. Simply return the object's actual
// object reference.
return obj._retn ();
}
CORBA::Boolean
TAO_LB_ObjectReferenceFactory::find_object_group (
const char * repository_id,
CORBA::ULong & index,
PortableGroup::ObjectGroup_out object_group
ACE_ENV_ARG_DECL)
{
if (this->load_managed_object (repository_id, index))
{
PortableGroup::ObjectGroup_var group;
if (this->table_.find (repository_id, group) != 0)
{
if (ACE_OS::strcasecmp (this->object_groups_[index].in (),
"CREATE") == 0)
{
PortableGroup::Criteria criteria (1);
criteria.length (1);
PortableGroup::Property & property = criteria[0];
property.nam.length (1);
property.nam[0].id =
CORBA::string_dup ("org.omg.PortableGroup.MembershipStyle");
// Configure for application-controlled membership.
PortableGroup::MembershipStyleValue msv =
PortableGroup::MEMB_APP_CTRL;
property.val <<= msv;
PortableGroup::GenericFactory::FactoryCreationId_var fcid;
group =
this->lm_->create_object (repository_id,
criteria,
fcid.out ()
ACE_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (0);
const CORBA::ULong len = this->fcids_.size ();
this->fcids_.size (len + 1); // Incremental growth. Yuck!
this->fcids_[len] = fcid;
}
else
{
group =
this->orb_->string_to_object (this->object_groups_[index].in ()
ACE_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (0);
}
if (this->table_.bind (repository_id, group) != 0)
{
if (TAO_debug_level > 0)
ACE_ERROR ((LM_ERROR,
"TAO_LB_ObjectReferenceFactory::"
"find_object_group - "
"Couldn't bind object group reference.\n"));
ACE_THROW_RETURN (CORBA::INTERNAL (), 0);
}
object_group = group.out ();
}
return 1;
}
else
return 0;
}
CORBA::Boolean
TAO_LB_ObjectReferenceFactory::load_managed_object (const char * repository_id,
CORBA::ULong & i)
{
// @todo Make this more efficient.
const CORBA::ULong len = this->repository_ids_.length ();
for (i = 0; i < len; ++i)
if (ACE_OS::strcmp (this->repository_ids_[i].in (), repository_id) == 0)
return 1;
return 0;
}
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template class ACE_Hash_Map_Entry<ACE_CString, PortableGroup::ObjectGroup_var>;
template class ACE_Hash_Map_Manager_Ex<ACE_CString, PortableGroup::ObjectGroup_var, ACE_Hash<ACE_CString>, ACE_Equal_To<ACE_CString>, ACE_Null_Mutex>;
template class ACE_Hash_Map_Iterator_Base_Ex<ACE_CString, PortableGroup::ObjectGroup_var, ACE_Hash<ACE_CString>, ACE_Equal_To<ACE_CString>, ACE_Null_Mutex>;
template class ACE_Hash_Map_Iterator_Ex<ACE_CString, PortableGroup::ObjectGroup_var, ACE_Hash<ACE_CString>, ACE_Equal_To<ACE_CString>, ACE_Null_Mutex>;
template class ACE_Hash_Map_Reverse_Iterator_Ex<ACE_CString, PortableGroup::ObjectGroup_var, ACE_Hash<ACE_CString>, ACE_Equal_To<ACE_CString>, ACE_Null_Mutex>;
template class ACE_Array_Base<PortableGroup::GenericFactory::FactoryCreationId_var>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate ACE_Hash_Map_Entry<ACE_CString, PortableGroup::ObjectGroup_var>
#pragma instantiate ACE_Hash_Map_Manager_Ex<ACE_CString, PortableGroup::ObjectGroup_var, ACE_Hash<ACE_CString>, ACE_Equal_To<ACE_CString>, ACE_Null_Mutex>
#pragma instantiate ACE_Hash_Map_Iterator_Base_Ex<ACE_CString, PortableGroup::ObjectGroup_var, ACE_Hash<ACE_CString>, ACE_Equal_To<ACE_CString>, ACE_Null_Mutex>
#pragma instantiate ACE_Hash_Map_Iterator_Ex<ACE_CString, PortableGroup::ObjectGroup_var, ACE_Hash<ACE_CString>, ACE_Equal_To<ACE_CString>, ACE_Null_Mutex>
#pragma instantiate ACE_Hash_Map_Reverse_Iterator_Ex<ACE_CString, PortableGroup::ObjectGroup_var, ACE_Hash<ACE_CString>, ACE_Equal_To<ACE_CString>, ACE_Null_Mutex>
#pragma instantiate ACE_Array_Base<PortableGroup::GenericFactory::FactoryCreationId_var>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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