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// $Id$
#include "Consumer.h"
#include "orbsvcs/CosEventChannelAdminS.h"
#include "ace/Get_Opt.h"
ACE_RCSID (CosEC_Examples,
Consumer,
"$Id$")
const ACE_TCHAR *ior = ACE_TEXT ("file://ec.ior");
int
parse_args (int argc, ACE_TCHAR *argv[])
{
ACE_Get_Opt get_opts (argc, argv, ACE_TEXT("k:"));
int c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'k':
ior = get_opts.opt_arg ();
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s "
"-k <ior> "
"\n",
argv [0]),
-1);
}
// Indicates successful parsing of the command line
return 0;
}
int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
Consumer consumer;
return consumer.run (argc, argv);
}
// ****************************************************************
Consumer::Consumer (void)
: event_count_ (0)
{
}
int
Consumer::run (int argc, ACE_TCHAR* argv[])
{
try
{
// ORB initialization boiler plate...
CORBA::ORB_var orb =
CORBA::ORB_init (argc, argv);
if (parse_args (argc, argv) != 0)
return 1;
// Do *NOT* make a copy because we don't want the ORB to outlive
// the Consumer object.
this->orb_ = orb.in ();
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, we could use a naming service, a
// command line argument or resolve_initial_references(), but
// this is simpler...
object =
orb->string_to_object (ior);
CosEventChannelAdmin::EventChannel_var event_channel =
CosEventChannelAdmin::EventChannel::_narrow (object.in ());
// The canonical protocol to connect to the EC
CosEventChannelAdmin::ConsumerAdmin_var consumer_admin =
event_channel->for_consumers ();
CosEventChannelAdmin::ProxyPushSupplier_var supplier =
consumer_admin->obtain_push_supplier ();
CosEventComm::PushConsumer_var consumer =
this->_this ();
supplier->connect_push_consumer (consumer.in ());
// Wait for events, using work_pending()/perform_work() may help
// or using another thread, this example is too simple for that.
orb->run ();
// We don't do any cleanup, it is hard to do it after shutdown,
// and would complicate the example; plus it is almost
// impossible to do cleanup after ORB->run() because the POA is
// in the holding state. Applications should use
// work_pending()/perform_work() to do more interesting stuff.
// Check the supplier for the proper way to do cleanup.
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Consumer::run");
return 1;
}
return 0;
}
void
Consumer::push (const CORBA::Any &)
{
this->event_count_ ++;
if (this->event_count_ % 100 == 0)
{
ACE_DEBUG ((LM_DEBUG,
"Consumer (%P|%t): %d events received\n",
this->event_count_));
}
}
void
Consumer::disconnect_push_consumer (void)
{
// In this example we shutdown the ORB when we disconnect from the
// EC (or rather the EC disconnects from us), but this doesn't have
// to be the case....
this->orb_->shutdown (0);
}
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