how to get user credentials from a portlet

[knyazsh]

Greetins!

I'm trying to modify my application (written with Seam, RichFaces and EJB) to get the correct user credentials from Portlet Container. I've read throught the booking example, the username there is recieved from credentials.getUsername(). I've found this in org.jboss.seam.example.booking.HotelBookingAction, bookHotel(). Once I do the same I get "Null Pointer Exception".
Could you point me the correct way to recieve the credentials of a currently logged in user?
Tnx in advance!

[knyazsh]

Discussing this at the eXo platform forum. Dunno how to input the direct link to the forum here... It's not transparent actually =)
I shall post the correct solution here once I get it.

[apemberton]

Not sure exactly what you mean by user credentials, but:

1. The user's login name (used for authentication) can be obtained through the standard portlet API:

PortletRequest.getRemoteUser()

or the principal:

PortletRequest.getUserPrincipal()

2. JSR286 also has support for retrieving other user attributes when configured in portlet.xml (see the JSR286 spec http://jcp.org/en/jsr/detail?id=286).

[knyazsh]

Hi apemberton =)
I've found the solution already, the one I used was:
import org.jboss.portletbridge.seam.PortalIdentity;
...
username = PortalIdentity.instance().getPrincipal().getName();

This was exactly the one I was looking for.