Example #1
0
void
Peer_Base::connect (Federated_Test::Peer_ptr remote_peer)
{
  ACE_DEBUG ((LM_DEBUG, "(%P|%t) Connecting....\n"));
  CORBA::Object_var remote_ec_object =
    remote_peer->channel ();

  RtecEventChannelAdmin::EventChannel_var remote_ec =
    RtecEventChannelAdmin::EventChannel::_narrow (remote_ec_object.in ());

  Servant_var<TAO_EC_Gateway_IIOP> gateway (new TAO_EC_Gateway_IIOP);
  gateway->init (remote_ec.in (),
                 this->event_channel_.in ());

  RtecEventChannelAdmin::Observer_var observer =
    gateway->_this ();

  RtecEventChannelAdmin::Observer_Handle h =
    this->event_channel_->append_observer (observer.in ());

  gateway->observer_handle (h);
}
Example #2
0
int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
  try
  {
    // Initialize the EC Factory so we can customize the EC
    TAO_EC_Default_Factory::init_svcs ();

    // Initialize the ORB.
    CORBA::ORB_var orb = CORBA::ORB_init(argc, argv);

    const ACE_TCHAR* ecname = ACE_TEXT ("EventService");
    const ACE_TCHAR* remote_ecname = 0;
    const ACE_TCHAR* iorfile = 0;
    for (int i = 0; argv[i] != 0; i++) {
      if (ACE_OS::strcmp(argv[i], ACE_TEXT("-ecname")) == 0) {
        if (argv[i+1] != 0) {
          i++;
          ecname = argv[i];
        } else {
          std::cerr << "Missing Event channel name" << std::endl;
        }
      }
      if (ACE_OS::strcmp(argv[i], ACE_TEXT("-gateway")) == 0) {
        if (argv[i+1] != 0) {
          i++;
          remote_ecname = argv[i];
        } else {
          std::cerr << "Missing Event channel name" << std::endl;
        }
      }
      if (ACE_OS::strcmp(argv[i], ACE_TEXT("-iorfile")) == 0) {
        if (argv[i+1] != 0) {
          i++;
          iorfile = argv[i];
        }
      }
    }

    // Get the POA
    CORBA::Object_var object = orb->resolve_initial_references ("RootPOA");
    PortableServer::POA_var poa = PortableServer::POA::_narrow (object.in ());
    PortableServer::POAManager_var poa_manager = poa->the_POAManager ();
    poa_manager->activate ();

    // Spawn a thread for the orb
    ACE_Thread_Manager *thread_mgr = ACE_Thread_Manager::instance();
    thread_mgr->spawn(orb_thread, orb.in());

    // Create a local event channel and register it with the RootPOA.
    TAO_EC_Event_Channel_Attributes attributes (poa.in (), poa.in ());
    PortableServer::Servant_var<TAO_EC_Event_Channel> ec_impl =
      new TAO_EC_Event_Channel(attributes);
    ec_impl->activate ();
    PortableServer::ObjectId_var oid = poa->activate_object(ec_impl.in());
    CORBA::Object_var ec_obj = poa->id_to_reference(oid.in());
    RtecEventChannelAdmin::EventChannel_var ec =
      RtecEventChannelAdmin::EventChannel::_narrow(ec_obj.in());

    // Find the Naming Service.
    object = orb->resolve_initial_references("NameService");
    CosNaming::NamingContextExt_var root_context = CosNaming::NamingContextExt::_narrow(object.in());
    CosNaming::Name_var name = root_context->to_name (ACE_TEXT_ALWAYS_CHAR (ecname));
    root_context->rebind(name.in(), ec.in());

    // Get a SupplierAdmin object from the EventChannel.
    RtecEventChannelAdmin::SupplierAdmin_var admin = ec->for_suppliers();

    // Get a ProxyPushConsumer from the SupplierAdmin.
    RtecEventChannelAdmin::ProxyPushConsumer_var consumer =
                                        admin->obtain_push_consumer();

    // Instantiate an EchoEventSupplier_i servant.
    PortableServer::Servant_var<EchoEventSupplier_i> servant =
      new EchoEventSupplier_i(orb.in());

    // Register it with the RootPOA.
    oid = poa->activate_object(servant.in());
    CORBA::Object_var supplier_obj = poa->id_to_reference(oid.in());
    RtecEventComm::PushSupplier_var supplier =
      RtecEventComm::PushSupplier::_narrow(supplier_obj.in());

    // Publish the events the supplier provides.
    ACE_SupplierQOS_Factory qos;
    qos.insert (MY_SOURCE_ID,      // Supplier's unique id
                MY_EVENT_TYPE,     // Event type
                0,                 // handle to the rt_info structure
                1);                // number of calls

    // Connect as a supplier of the published events.
    consumer->connect_push_supplier (supplier.in (),
                                     qos.get_SupplierQOS ());

    // Create an event (just a string in this case).
    const CORBA::String_var eventData = CORBA::string_dup (ACE_TEXT_ALWAYS_CHAR (ecname));

    // Create an event set for one event
    RtecEventComm::EventSet event (1);
    event.length (1);
    // Initialize event header.
    event[0].header.source = MY_SOURCE_ID;
    event[0].header.ttl = 1;
    event[0].header.type = MY_EVENT_TYPE;
    // Initialize data fields in event.
    event[0].data.any_value <<= eventData;

    PortableServer::Servant_var<TAO_EC_Gateway_IIOP> gateway =
      new TAO_EC_Gateway_IIOP;
    int gateway_initialized = 0;

    std::cout << "Supplier starting sending of events.\n";

    while (1) {

      consumer->push (event);
      ACE_Time_Value tv(0, 1000 * EVENT_DELAY_MS);
      orb->run(tv);

      if ((remote_ecname != 0)  && (!gateway_initialized)) {

        try {
          // Get the remote event channel object
          CORBA::Object_var obj = root_context->resolve_str (ACE_TEXT_ALWAYS_CHAR (remote_ecname));
          RtecEventChannelAdmin::EventChannel_var remote_ec =
            RtecEventChannelAdmin::EventChannel::_narrow(obj.in());

          int ok = 0;
          if (!CORBA::is_nil(remote_ec.in())) {
            // Now check if we can talk to it...
            try {
              RtecEventChannelAdmin::SupplierAdmin_var adm =
                remote_ec->for_suppliers();
              ok = 1;
            } catch(const CORBA::UserException&) {
              // What is the correct exception(s) to catch here?
            }
          }

          // There is a good remote event channel so initialize the
          // gateway.
          if (ok) {
            gateway->init(remote_ec.in(), ec.in());

            PortableServer::ObjectId_var gateway_oid =
              poa->activate_object(gateway.in());
            CORBA::Object_var gateway_obj =
              poa->id_to_reference(gateway_oid.in());
            RtecEventChannelAdmin::Observer_var obs =
              RtecEventChannelAdmin::Observer::_narrow(gateway_obj.in());
            RtecEventChannelAdmin::Observer_Handle local_ec_obs_handle =
              ec->append_observer (obs.in ());
            ACE_UNUSED_ARG (local_ec_obs_handle);
            gateway_initialized = 1;
            std::cout << "Gateway initialized\n";
            if (iorfile != 0) {
              CORBA::String_var str = orb->object_to_string( ec.in() );
              std::ofstream iorFile( ACE_TEXT_ALWAYS_CHAR(iorfile) );
              iorFile << str.in() << std::endl;
              iorFile.close();
            }
          }
        } catch(const CosNaming::NamingContext::NotFound&) {
          // Try again later...
        }
      }
    }

    orb->destroy();

    return 0;
  }
  catch(const CORBA::Exception& exc)
  {
    std::cerr << "Caught CORBA::Exception" << std::endl << exc << std::endl;
  }

  return 1;
}
Example #3
0
int
Gateway::run (int argc, ACE_TCHAR* argv[])
{
    TAO_EC_Gateway_IIOP_Factory::init_svcs ();

    try
    {
        // First parse our command line options
        if (this->parse_args(argc, argv) != 0)
        {
            return -1;
        }

        // ORB initialization boiler plate...
        CORBA::ORB_var orb =
            CORBA::ORB_init (argc, argv);

        CORBA::Object_var object =
            orb->resolve_initial_references ("RootPOA");
        PortableServer::POA_var poa =
            PortableServer::POA::_narrow (object.in ());
        PortableServer::POAManager_var poa_manager =
            poa->the_POAManager ();
        poa_manager->activate ();

        // Obtain the event channel from the naming service
        CORBA::Object_var naming_obj =
            orb->resolve_initial_references ("NameService");

        if (CORBA::is_nil (naming_obj.in ()))
            ACE_ERROR_RETURN ((LM_ERROR,
                               " (%P|%t) Unable to get the Naming Service.\n"),
                              1);

        CosNaming::NamingContext_var naming_context =
            CosNaming::NamingContext::_narrow (naming_obj.in ());

        CosNaming::Name supplierecname (1);
        supplierecname.length (1);
        supplierecname[0].id = CORBA::string_dup (ACE_TEXT_ALWAYS_CHAR(supplierec));

        CORBA::Object_var supplierec_obj =
            naming_context->resolve (supplierecname);

        CosNaming::Name consumerecname (1);
        consumerecname.length (1);
        consumerecname[0].id = CORBA::string_dup (ACE_TEXT_ALWAYS_CHAR(consumerec));

        CORBA::Object_var consumerec_obj =
            naming_context->resolve (consumerecname);

        RtecEventChannelAdmin::EventChannel_var supplier_event_channel =
            RtecEventChannelAdmin::EventChannel::_narrow (supplierec_obj.in ());

        if (CORBA::is_nil (supplier_event_channel.in ()))
            ACE_ERROR_RETURN ((LM_ERROR,
                               " (%P|%t) Unable to get the supplier event channel.\n"),
                              1);

        RtecEventChannelAdmin::EventChannel_var consumer_event_channel =
            RtecEventChannelAdmin::EventChannel::_narrow (consumerec_obj.in ());

        if (CORBA::is_nil (consumer_event_channel.in ()))
            ACE_ERROR_RETURN ((LM_ERROR,
                               " (%P|%t) Unable to get the consumer event channel.\n"),
                              1);

        TAO_EC_Gateway_IIOP gateway;

        gateway.init(supplier_event_channel.in(), consumer_event_channel.in());

        PortableServer::ObjectId_var gateway_oid =
            poa->activate_object(&gateway);

        CORBA::Object_var gateway_obj =
            poa->id_to_reference(gateway_oid.in());

        RtecEventChannelAdmin::Observer_var obs =
            RtecEventChannelAdmin::Observer::_narrow(gateway_obj.in());

        RtecEventChannelAdmin::Observer_Handle local_ec_obs_handle =
            consumer_event_channel->append_observer (obs.in ());

        // Wait for events, using work_pending()/perform_work() may help
        // or using another thread, this example is too simple for that.
        orb->run ();

        consumer_event_channel->remove_observer (local_ec_obs_handle);

        poa->deactivate_object (gateway_oid.in ());

        // Destroy the POA
        poa->destroy (1, 0);
    }
    catch (const CORBA::Exception& ex)
    {
        ex._tao_print_exception ("Gateway::run");
        return 1;
    }

    return 0;
}