[keycloak-user] Use keycloak as I used picketlink

Hello to all, I want to change from picketlink to keycloak In my ee app I use keycloack CDI to check the user roles and grant with BasicModel.hasRole(relationshipManager, identity.getAccount(), BasicModel.getRole(identityManager, "admin")) or Authorization Util.hasRole(identity, partitionManager, "admin"); in my bean methods How can I made the same thing with Keycloak? Thanks in advantage Stefano