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//=============================================================================
/**
* @file NewPOA.cpp
*
* This program demonstrates creation of new POAs, as children of the root POA or the
* existing POA.
* There are three new POA created in this example.
* The hierarchy of POAs looks like this.
*
* /-->first_poa-->first_poa/second_poa
* RootPOA--
* \-->third_poa
*
*
* @author Irfan Pyarali
*/
//=============================================================================
#include "tao/PortableServer/PortableServer.h"
#include "tao/ORB.h"
#include "ace/SString.h"
#include "ace/Log_Msg.h"
void
print_poa (PortableServer::POA_ptr poa)
{
CORBA::String_var poa_name =
poa->the_name ();
CORBA::OctetSeq_var poa_id =
poa->id ();
ACE_DEBUG ((LM_DEBUG,
"POA name = %C\n",
poa_name.in ()));
ACE_DEBUG ((LM_DEBUG,
"POA id = "));
for (CORBA::ULong i = 0;
i != poa_id->length ();
++i)
{
ACE_DEBUG ((LM_DEBUG,
"%o",
poa_id[i]));
}
ACE_DEBUG ((LM_DEBUG,
"\n"));
PortableServer::POAList_var children =
poa->the_children ();
for (CORBA::ULong index = 0;
index != children->length ();
++index)
{
print_poa (children[index]);
}
}
int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
try
{
// The first step Initialize the ORB
CORBA::ORB_var orb = CORBA::ORB_init (argc, argv);
// Obtain the RootPOA.
CORBA::Object_var obj =
orb->resolve_initial_references ("RootPOA");
// _narrow() the Object to get the POA object, i.e., the root_poa.
PortableServer::POA_var root_poa =
PortableServer::POA::_narrow (obj.in ());
// Policies for the new POAs
CORBA::PolicyList policies (2);
policies.length (2);
// Threading policy
policies[0] =
root_poa->create_thread_policy (PortableServer::ORB_CTRL_MODEL);
// Lifespan policy
policies[1] =
root_poa->create_lifespan_policy (PortableServer::TRANSIENT);
// Creation of the firstPOA
ACE_CString name = "firstPOA";
PortableServer::POA_var first_poa =
root_poa->create_POA (name.c_str (),
PortableServer::POAManager::_nil (),
policies);
// Creation of the new POA, i.e. firstPOA/secondPOA
name = "secondPOA";
PortableServer::POA_var second_poa =
first_poa->create_POA (name.c_str (),
PortableServer::POAManager::_nil (),
policies);
// Creating thirdPOA.
name = "thirdPOA";
PortableServer::POA_var third_poa =
root_poa->create_POA (name.c_str (),
PortableServer::POAManager::_nil (),
policies);
// Creation of the new POAs over, so destroy the Policy_ptr's.
for (CORBA::ULong i = 0;
i < policies.length ();
++i)
{
CORBA::Policy_ptr policy = policies[i];
policy->destroy ();
}
// Get the names of all the POAs and print them out.
CORBA::String_var root_poa_name =
root_poa->the_name ();
CORBA::String_var first_poa_name =
first_poa->the_name ();
CORBA::String_var second_poa_name =
second_poa->the_name ();
CORBA::String_var third_poa_name =
third_poa->the_name ();
ACE_DEBUG ((LM_DEBUG,
"%C\n%C\n%C\n%C\n",
root_poa_name.in (),
first_poa_name.in (),
second_poa_name.in (),
third_poa_name.in ()));
print_poa (root_poa.in ());
orb->destroy ();
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Exception caught in main ");
return -1;
}
return 0;
}
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