[omniORB] Beginner's question about corbaloc

[Jochen Behrens]

Hi Jörg,

the port information in the URI is missing. The correct form of the URI is:

corbaloc:iiop:<host>:<port>/<object key>  (see also section 6.1 of the 
omniORB User's Guide)

You should change your client implementation for example as follows:
...
CORBA::String_var strIOR =
CORBA::string_dup("corbaloc::localhost:*4711*/POAtest");
CORBA::Object_ptr obj = orb->string_to_object(strIOR);
...

and start the server with the corresponding endpoint parameter:

 > server -ORBendPoint giop:tcp::*4711*

Best Regards,
Jochen

Jörg König wrote:

> 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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