corbaservice.jar

Description
This bundle provides a service that enables to serve objects remotely by using CORBA DSI
For more details on how to use this bundle, refer to the /doc/readme.html file embedded in the bundle jarfile.

Contributors
Didier Donsez (Didier.Donsez@ieee.org)

License
LGPL

Services
org.ungoverned.osgi.service.remote.RemoteService

Properties
remote.transport=corba.transport

Requirements
org.ungoverned.osgi.service.remote; specification-version=1.0.0

Download

Build

configure the build properties in build.xml
then build with ant

Usage

starts a CORBA Naming Service with runorbd.bat
installs http://www-adele.imag.fr/~donsez/dev/osgi/remoteservice/remoteservice.jar the Soap Remote Service
installs and starts http://www-adele.imag.fr/~donsez/dev/osgi/corbaservice/corbaservice.jar the CORBA generic server
to test it, installs and starts http://www-adele.imag.fr/~donsez/dev/osgi/remoteservicetest/remoteservicetest.jar that registers objects in the CorbaService, and run the client with runclient.bat

More information on org.ungoverned.osgi.service.remote.RemoteService ...

Design of the CORBA-based RemoteService
Corba DSI (Dynamic Skeleton Interface) enables to process ORB requests and responses without a IDLJ-generated skeleton on the server-side
This CORBA-based fr.imag.adele.bundle.remote.RemoteService interface enables to connect any object on the ORB and register it in a CosNaming. Their objects could implement a IDLJ-generated interface or not !
CORBA Client could use IDLJ-generated stubs or DII (Dynamic Invocation Interface).

Tested gateways

OSCAR

Limitations (contributions are welcome)

methods parameters could be only Java primitive types (boolean, int, ...) and java.lang.String.

TODO (contributions are welcome)

Check servants unregistration when the RemoteService is stopped

Possible design with ServiceFactory (@see 4.13 in OSGi specifications release 3)

Test to embed jars of a ORB (such JacORB,Jonathan,...) instead of the de facto JRE ORB.

Jarfiles could be put in the ./embeddedlibs and orb properties file in ./res

A tini implementation ORB could be useful for embedded gateway !

Add the registration of servants to local or remote CORBA Trading Service such as OMG CosTrading or TORBA

Send to a LogService the exception stacktrace when it occurs during the handler invocation execution or other ???? (equivalent to 500 or 404 HTTP status)

Links

J2SE page on Dynamic Skeleton Invocation