@Override
    public Collection<Form> getUserAttributes() {
        return ModeledUser.ATTRIBUTES;
    }
Records that the user associated with this UserContext has logged in,
creating a partial activity record. The resulting activity record will
contain a start date only, with the end date being automatically
populated when this UserContext is invalidated. If this function is
invoked more than once for the same UserContext, only the first
invocation has any effect. If this function is never invoked, no
activity record will be recorded, including when this UserContext is
invalidated.

@throws GuacamoleException
    If an error occurs retrieving configuration information from the
    environment.
extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/apache/guacamole/auth/jdbc/user/ModeledUserContext.java