IDP Integration via SAML2.0 - Retrieve user info

Hi,

I am trying to integrate weblogic to a IDP provider for a simple Java(non-spring) app. I am able to login successfully and I can use information passed by IDP in logs as SAML response(XML Format).

I get user id using request.getRemoteUser().

How can retrieve other current/logged in user attributes like name, phone number, group passed by IDP in java/web app.

Note: these users are managed by IDP and not available in weblogic.

Any help or pointers is highly appreciated..

Thanks!