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// -*- C++ -*-
// $Id$
#include "LoadBalancer_i.h"
#include "ReplicaProxy.h"
ACE_RCSID(orbsvcs, LoadBalancer, "$Id$")
#if !defined (__ACE_INLINE__)
#include "LoadBalancer_i.i"
#endif /* __ACE_INLINE__ */
TAO_LB_LoadBalancer::TAO_LB_LoadBalancer (
const char * interface_id,
TAO_LB_LoadBalancing_Strategy *strategy,
PortableServer::POA_ptr root_poa)
: locator_ (this),
strategy_ (strategy),
poa_ ()
{
(void) this->init (interface_id, root_poa);
}
TAO_LB_LoadBalancer::~TAO_LB_LoadBalancer (void)
{
// Nothing else
}
LoadBalancing::ReplicaProxy_ptr
TAO_LB_LoadBalancer::connect (LoadBalancing::ReplicaControl_ptr control,
CORBA::Object_ptr replica,
CORBA::Environment &ACE_TRY_ENV)
ACE_THROW_SPEC ((LoadBalancing::ReplicaProxy::NilControl,
LoadBalancing::ReplicaProxy::NilReplica,
CORBA::SystemException))
{
TAO_LB_ReplicaProxy *proxy = 0;
ACE_NEW_THROW_EX (proxy,
TAO_LB_ReplicaProxy,
CORBA::NO_MEMORY (
CORBA_SystemException::_tao_minor_code (
TAO_DEFAULT_MINOR_CODE,
ENOMEM),
CORBA::COMPLETED_NO));
ACE_CHECK_RETURN (LoadBalancing::ReplicaProxy::_nil ());
PortableServer::ServantBase_var proxy_servant = proxy;
proxy->connect (this, control, replica, ACE_TRY_ENV);
ACE_CHECK_RETURN (LoadBalancing::ReplicaProxy::_nil ());
if (this->strategy_->insert (proxy) == -1)
{
ACE_THROW_RETURN (CORBA::INTERNAL (),
LoadBalancing::ReplicaProxy::_nil ());
}
return proxy->_this (ACE_TRY_ENV);
}
CORBA::Object_ptr
TAO_LB_LoadBalancer::group_identity (CORBA::Environment &)
ACE_THROW_SPEC ((CORBA::SystemException))
{
return CORBA::Object::_duplicate (this->group_identity_.in ());
}
void
TAO_LB_LoadBalancer::load_changed (TAO_LB_ReplicaProxy *proxy,
CORBA::Environment &ACE_TRY_ENV)
{
this->strategy_->load_changed (proxy, ACE_TRY_ENV);
}
int
TAO_LB_LoadBalancer::init (const char * repository_id,
PortableServer::POA_ptr root_poa)
{
ACE_TRY_NEW_ENV
{
// Create the appropriate RequestProcessingPolicy
// (USE_SERVANT_MANAGER) and ServantRetentionPolicy (NON_RETAIN)
// for a ServantLocator.
PortableServer::RequestProcessingPolicy_var request =
root_poa->create_request_processing_policy (
PortableServer::USE_SERVANT_MANAGER,
ACE_TRY_ENV);
ACE_TRY_CHECK;
PortableServer::ServantRetentionPolicy_var retention =
root_poa->create_servant_retention_policy (
PortableServer::NON_RETAIN,
ACE_TRY_ENV);
ACE_TRY_CHECK;
// Create the PolicyList.
CORBA::PolicyList policy_list;
policy_list.length (2);
policy_list[0] =
PortableServer::RequestProcessingPolicy::_duplicate (
request.in ());
policy_list[1] =
PortableServer::ServantRetentionPolicy::_duplicate (
retention. in ());
// Create the child POA with the ServantManager (ReplicaLocator)
// above policies.
PortableServer::POAManager_var poa_manager =
root_poa->the_POAManager (ACE_TRY_ENV);
ACE_TRY_CHECK;
this->poa_ = root_poa->create_POA ("TAO_LB_ReplicaLocator_POA",
poa_manager.in (),
policy_list,
ACE_TRY_ENV);
ACE_TRY_CHECK;
// Activate the child POA.
poa_manager->activate (ACE_TRY_ENV);
ACE_TRY_CHECK;
request->destroy (ACE_TRY_ENV);
ACE_TRY_CHECK;
retention->destroy (ACE_TRY_ENV);
ACE_TRY_CHECK;
// Now set the ReplicaLocator as the child POA's Servant
// Manager.
this->poa_->set_servant_manager (&this->locator_,
ACE_TRY_ENV);
ACE_TRY_CHECK;
// @@ What ObjectId should be used?
PortableServer::ObjectId_var oid =
PortableServer::string_to_ObjectId ("TAO_LB_ObjectGroup");
this->group_identity_ =
this->poa_->create_reference_with_id (oid.in (),
repository_id,
ACE_TRY_ENV);
ACE_TRY_CHECK;
}
ACE_CATCHANY
{
// @@ Should we do anything here?
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
"(%P|%t) Load Balancer initialization:");
return -1;
}
ACE_ENDTRY;
return 0;
}
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