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// $Id$
// ========================================================================
// = LIBRARY
// TAO/examples/POA/Forwarding
//
// = FILENAME
// server.cpp
//
// = DESCRIPTION
// Server that receives requests. The server can be asked to
// forward new requests to another server.
//
// = AUTHOR
// Irfan Pyarali
// Michael Kircher
//
// ========================================================================
#include "ace/Get_Opt.h"
#include "test_i.h"
#include "Servant_Activator.h"
#include "ace/OS_NS_stdio.h"
ACE_RCSID(Forwarding, server, "$Id$")
static const ACE_TCHAR *ior_output_file = 0;
static const ACE_TCHAR *forward_to_ior = 0;
static int
parse_args (int argc, ACE_TCHAR **argv)
{
ACE_Get_Opt get_opts (argc, argv, ACE_TEXT("f:o:"));
int c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'f':
forward_to_ior = get_opts.opt_arg ();
break;
case 'o':
ior_output_file = get_opts.opt_arg ();
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"\nusage: %s\n"
"-f forward to IOR\n"
"-o output file for IOR\n"
"\n",
argv [0]),
-1);
}
if (ior_output_file == 0)
ACE_ERROR_RETURN ((LM_ERROR,
"output IOR file not specified\n"),
-1);
// Indicates successful parsing of command line.
return 0;
}
PortableServer::POA_ptr
setup_poa (PortableServer::POA_ptr root_poa)
{
// Policies for the childPOA to be created.
CORBA::PolicyList policies (2);
policies.length (2);
// Tell the POA to use a servant manager.
policies[0] =
root_poa->create_request_processing_policy (PortableServer::USE_SERVANT_MANAGER);
// Allow implicit activation.
policies[1] =
root_poa->create_implicit_activation_policy (PortableServer::IMPLICIT_ACTIVATION);
PortableServer::POAManager_var poa_manager =
root_poa->the_POAManager ();
// Create POA as child of RootPOA with the above policies. This POA
// will use a SERVANT_ACTIVATOR because of RETAIN policy.
PortableServer::POA_var child_poa =
root_poa->create_POA ("childPOA",
poa_manager.in (),
policies);
// Creation of childPOAs is over. Destroy the Policy objects.
for (CORBA::ULong i = 0;
i < policies.length ();
++i)
{
policies[i]->destroy ();
}
return child_poa._retn ();
}
ServantActivator *
create_servant_manager (CORBA::ORB_ptr orb,
PortableServer::POA_ptr child_poa)
{
CORBA::Object_var forward_to;
if (forward_to_ior)
{
forward_to =
orb->string_to_object (forward_to_ior);
}
ServantActivator *activator = 0;
ACE_NEW_RETURN (activator,
ServantActivator (orb,
forward_to.in ()),
0);
// Set ServantActivator to be the servant activator.
child_poa->set_servant_manager (activator);
// For the code above, we're using the CORBA 3.0 servant manager
// semantics supported by TAO. For CORBA 2.x ORBs you'd need to
// use the following code in place of the previous line:
//
// PortableServer::ServantManager_var servant_activator =
// activator->_this ();
//
// child_poa->set_servant_manager (servant_activator.in (),
//);
test_i *servant = 0;
ACE_NEW_RETURN (servant,
test_i (orb,
child_poa,
*activator,
127),
0);
PortableServer::ServantBase_var servant_var (servant);
test_var test =
servant->_this ();
CORBA::String_var ior =
orb->object_to_string (test.in ());
FILE *output_file = ACE_OS::fopen (ior_output_file, "w");
if (output_file == 0)
ACE_ERROR ((LM_ERROR,
"Cannot open output file for writing IOR: %s\n",
ior_output_file));
ACE_OS::fprintf (output_file,
"%s",
ior.in ());
ACE_OS::fclose (output_file);
return activator;
}
int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
try
{
// Initialize the ORB first.
CORBA::ORB_var orb =
CORBA::ORB_init (argc, argv);
int result =
parse_args (argc, argv);
if (result == -1)
return -1;
// Obtain the RootPOA.
CORBA::Object_var obj =
orb->resolve_initial_references ("RootPOA");
PortableServer::POA_var root_poa =
PortableServer::POA::_narrow (obj.in ());
// Get the POAManager of the RootPOA.
PortableServer::POAManager_var poa_manager =
root_poa->the_POAManager ();
PortableServer::POA_var child_poa =
setup_poa (root_poa.in ());
ServantActivator *manager =
create_servant_manager (orb.in (),
child_poa.in ());
poa_manager->activate ();
orb->run ();
orb->destroy ();
delete manager;
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Exception caught in server");
return -1;
}
return 0;
}
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