Call RFC from EJB using SSO

Question

Can anyone point me in the right direction on the best practice for calling an RFC using SSO from an EJB?
When using the local interface for the EJB, the only solution I see is to pass the authenticated IUser instance from the portal component to the EJB business method through the method signature.
I am guessing that there is a better way to get access to an authenticated user in the EJB container.

Answer 1

Thanks for the reply.
Actually I was able to solve the problem last night. To get SSO to work in my local EJBs I created an RFC destination in the destination service using the visual administrator. I then used the destination service at runtime to pull the system definition from the J2EE system definitions store instead of the portal system landscape definitions and my connection object was created as expected.
Here is the code to create the connection in my EJB business method:
//get the user
IUser user = UMFactory.getUserFactory().getUserByUniqueName(this.myContext.getCallerPrincipal().getName());
// get the destination service
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sapportals.portal.prt.registry.PortalRegistryFactory");
InitialContext context = new InitialContext(env);
IDestinationsService destinationsService =
     (IDestinationsService) context.lookup(IDestinationsService.SERVICE_JNDI_NAME);
// define a destination filter to restrict to the RFC defined destinations
DestinationFilter destinationFilter1 =
     new DestinationFilter(DestinationFilter.SOURCE_J2EE_DESTINATION_SERVICE, DestinationFilter.TYPE_SAP);
// get a user specific connection
IConnection connection = destinationsService.getConnection(user, "ECC", destinationFilter1);