[omniORB] Beginner's question about corbaloc

[Wernke zur Borg]

Hi Jörg,

your problem is that you start the server with a random port number. Your
client tries to reach the server under the default port which is 2809.

Start the server with a endpoint specification, e.g. giop:tcp::<port> and
use the corbaloc with that port number, e.g.
corbaloc::localhost:<port>/POAtest

Hope it helps,
Wernke

-----Original Message-----
From: omniorb-list-bounces at omniorb-support.com
[mailto:omniorb-list-bounces at omniorb-support.com] On Behalf Of Jörg König
Sent: 11 November 2004 13:12
To: omniorb-list at omniorb-support.com
Subject: [omniORB] Beginner's question about corbaloc

Hi,

My name is Jörg. I'm new to this mailing list. My native language is 
german, so forgive me if my english isn't the best :)

Now for the problem: Until now I used omniORB 2.8 for a very long time 
and thought it would be time to upgrade to a somewhat newer version. So 
far I used the BOA model in conjunction with a NameService for a set of 
Servers. Now I need to develop a server that can be contacted without 
the need of a NameService and thought the "corbaloc" could solve my problem.

I tried omniORB 4.0.5 and wrote a very simple server/client application 
to see how it works. The interface is as simple as the echo-sample that 
comes with omniORB. My server's main() looks like this (all error 
handling stripped off, because the debugger does the work, too :-) ):

int main(int argc, char ** argv)
{
	CORBA::ORB_var orb = CORBA::ORB_init(argc, argv);
	CORBA::Object_var obj =
orb->resolve_initial_references("omniINSPOA");
	PortableServer::POA_var poa = PortableServer::POA::_narrow(obj);

	poa->the_POAManager()->activate();

	IEcho * echo = new IEcho();
	PortableServer::ObjectId_var oid = 
PortableServer::string_to_ObjectId("POAtest");
	PortableServer::ServantBase_var servant = echo;
	poa->activate_object_with_id(oid, servant);

	Echo_var v = echo->_this();
	echo->_remove_ref();

	cout << "Server is ready" << endl;
	orb->run();

	return 0;
}

The client side looks like this:

int main(int argc, char ** argv) {
	CORBA::ORB_var orb = CORBA::ORB_init(argc, argv);

	CORBA::String_var strIOR = 
CORBA::string_dup("corbaloc::localhost:/POAtest");
	CORBA::Object_ptr obj = orb->string_to_object(strIOR);
	Echo_var v = Echo::_narrow(obj);  // this will throw an exception

	cout << v->send("Hello Server") << endl;

	orb->destroy();
	return 0;
}

(I'm not giving any arguments (argc/argv) to either the server or client.)
Unfortunataly the client doesn't work as expected. As soon as I try to 
narrow the object to its real type, the ORB throws a TRANSIENT exception.
I think I'm missing something, but cannot figure out what it is...

Hope someone can enlighten me :)

	Jörg
-- 
Mail:    J.Koenig at adg.de
Company: ADG mbH, Mannheim Germany
Phone:   +49 0621/8505-609

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