protected String determineIdentity(final OpenIdService service, final Assertion assertion) {
        if (assertion != null && OpenIdProtocolConstants.OPENID_IDENTIFIERSELECT.equals(service.getIdentity())) {
            return this.openIdPrefixUrl + '/' + assertion.getPrimaryAuthentication().getPrincipal().getId();
        }
        return service.getIdentity();
    }
protected String determineIdentity ( final OpenIdService service , final Assertion assertion ) { if ( assertion != null && OpenIdProtocolConstants . OPENID_IDENTIFIERSELECT . equals ( service . getIdentity ( ) ) ) { return this . openIdPrefixUrl + '/' + assertion . getPrimaryAuthentication ( ) . getPrincipal ( ) . getId ( ) ; } return service . getIdentity ( ) ; }
Determine identity.

@param service   the service
@param assertion the assertion
@return the string