* for obtaining login credentials, resolving user information, and managing SSO
 * lifecycle operations like logout and metadata exchange.
 */
public interface SsoAuthenticator {

    /**
     * Gets the login credential for SSO authentication.
     * @return The login credential.
     */
    LoginCredential getLoginCredential();

    /**

     */
    public SsoAuthenticator[] getAuthenticators() {
        return authenticatorList.toArray(new SsoAuthenticator[authenticatorList.size()]);
    }

    /**
     * Registers an SSO authenticator with this manager.
     *
     * @param authenticator The SSO authenticator to register
     */
    public void register(final SsoAuthenticator authenticator) {
        if (logger.isInfoEnabled()) {