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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 "MyFooServant.h"
#include "Servant_Activator.h"
ACE_RCSID(Forwarding, server, "$Id$")
static const char *ior_output_file = 0;
static const char *forward_to_ior = 0;
static int
parse_args (int argc, char **argv)
{
ACE_Get_Opt get_opts (argc, argv, "f:o:");
int c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'f':
forward_to_ior = get_opts.optarg;
break;
case 'o':
ior_output_file = get_opts.optarg;
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,
CORBA::Environment &ACE_TRY_ENV)
{
// 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,
ACE_TRY_ENV);
ACE_CHECK_RETURN (PortableServer::POA::_nil ());
// Allow implicit activation.
policies[1] =
root_poa->create_implicit_activation_policy (PortableServer::IMPLICIT_ACTIVATION,
ACE_TRY_ENV);
ACE_CHECK_RETURN (PortableServer::POA::_nil ());
PortableServer::POAManager_var poa_manager =
root_poa->the_POAManager (ACE_TRY_ENV);
ACE_CHECK_RETURN (PortableServer::POA::_nil ());
// 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,
ACE_TRY_ENV);
ACE_CHECK_RETURN (PortableServer::POA::_nil ());
// Creation of childPOAs is over. Destroy the Policy objects.
for (CORBA::ULong i = 0;
i < policies.length ();
++i)
{
policies[i]->destroy (ACE_TRY_ENV);
ACE_CHECK_RETURN (PortableServer::POA::_nil ());
}
return child_poa._retn ();
}
MyFooServantActivator *
create_servant_manager (CORBA::ORB_ptr orb,
PortableServer::POA_ptr child_poa,
CORBA::Environment &ACE_TRY_ENV)
{
CORBA::Object_var forward_to;
if (forward_to_ior)
{
forward_to =
orb->string_to_object (forward_to_ior,
ACE_TRY_ENV);
ACE_CHECK_RETURN (0);
}
MyFooServantActivator *activator = 0;
ACE_NEW_RETURN (activator,
MyFooServantActivator (orb,
forward_to.in ()),
0);
// Set MyFooServantActivator to be the servant activator.
child_poa->set_servant_manager (activator,
ACE_TRY_ENV);
// 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 (),
// ACE_TRY_ENV);
ACE_CHECK_RETURN (0);
MyFooServant *servant = 0;
ACE_NEW_RETURN (servant,
MyFooServant (orb,
child_poa,
*activator,
127),
0);
PortableServer::ServantBase_var servant_var (servant);
Foo_var foo =
servant->_this (ACE_TRY_ENV);
ACE_CHECK_RETURN (0);
CORBA::String_var ior =
orb->object_to_string (foo.in (),
ACE_TRY_ENV);
ACE_CHECK_RETURN (0);
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
main (int argc,
char **argv)
{
int result =
parse_args (argc, argv);
if (result == -1)
return -1;
ACE_DECLARE_NEW_CORBA_ENV;
ACE_TRY
{
// Initialize the ORB first.
CORBA::ORB_var orb =
CORBA::ORB_init (argc,
argv,
0,
ACE_TRY_ENV);
ACE_TRY_CHECK;
// Obtain the RootPOA.
CORBA::Object_var obj =
orb->resolve_initial_references ("RootPOA",
ACE_TRY_ENV);
ACE_TRY_CHECK;
PortableServer::POA_var root_poa =
PortableServer::POA::_narrow (obj.in (),
ACE_TRY_ENV);
ACE_TRY_CHECK;
// Get the POAManager of the RootPOA.
PortableServer::POAManager_var poa_manager =
root_poa->the_POAManager (ACE_TRY_ENV);
ACE_TRY_CHECK;
PortableServer::POA_var child_poa =
setup_poa (root_poa.in (),
ACE_TRY_ENV);
ACE_TRY_CHECK;
PortableServer::ServantManager_var manager =
create_servant_manager (orb.in (),
child_poa.in (),
ACE_TRY_ENV);
ACE_TRY_CHECK;
poa_manager->activate (ACE_TRY_ENV);
ACE_TRY_CHECK;
orb->run (ACE_TRY_ENV);
ACE_TRY_CHECK;
orb->destroy (ACE_TRY_ENV);
ACE_TRY_CHECK;
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION, "Exception caught");
return -1;
}
ACE_ENDTRY;
ACE_CHECK_RETURN (-1);
return 0;
}
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