//                                                                      Implementation
    //                                                                      ==============
    @Override
    public String getUserId() {
        return user.getName();
    }

    // ===================================================================================
    //                                                                            Accessor

        final Map<String, String> valueMap = new LinkedHashMap<>();
        valueMap.put("action", Action.LOGIN.name());
        valueMap.put("user", user.map(FessUserBean::getUserId).orElse("-"));
        valueMap.put("permissions",
                user.map(u -> stream(u.getPermissions()).get(stream -> stream.collect(Collectors.joining(permissionSeparator))))

        this.attributes = attributes;
    }

    @Override
    public String toString() {
        return "{" + getUserId() + "}";
    }

    @Override
    public String getUserId() {
        return DocumentUtil.getValue(attributes, "email", String.class);
    }

    /**
     * Gets the user groups.
     *
     * @return the user groups
     */

            chatSessionManager.clearSession(form.sessionId, getUserId());
        }
        return redirect(getClass());
    }

    /**
     * Returns the user ID for the current session. If the user is authenticated, returns the username;
     * otherwise, returns the guest user code.
     *
     * @return the user ID
     */
    protected String getUserId() {
        final String username = systemHelper.getUsername();

 * Provides access to user identification information.
 */
public interface FessCredential {

    /**
     * Gets the user ID for this credential.
     * @return The user ID.
     */
    String getUserId();

     * @param password the password
     */
    public LocalUserCredential(final String user, final String password) {
        super(user, password);
    }

    @Override
    public String getUserId() {
        return getUser();
    }

        if (!getUserBean().isPresent()) {
            logger.warn("User session not found during password change");
            return redirect(LoginAction.class);
        }
        final String username = getUserBean().get().getUserId();
        try {
            userService.changePassword(username, form.newPassword);
            saveInfo(messages -> messages.addSuccessChangedPassword(GLOBAL));
        } catch (final Exception e) {

        this.username = username;
    }

    /**
     * Gets the user identifier from this credential.
     *
     * @return The username from SPNEGO authentication
     */
    @Override
    public String getUserId() {
        return username;
    }

    /**
     * Returns a string representation of this credential.
     *
     * @return A string representation containing the username in braces
     */
    @Override

        nameidSPNameQualifier = auth.getNameIdSPNameQualifier();
    }

    @Override
    public String toString() {
        return "{" + getUserId() + "}";
    }

    @Override
    public String getUserId() {
        return nameId;
    }

    /**
     * Gets the SAML user.
     * @return The SAML user.
     */
    public SamlUser getUser() {

            }

            if (StringUtil.isBlank(message)) {
                if ("true".equals(clearParam) && StringUtil.isNotBlank(sessionId)) {
                    final String clearUserId = getUserId(request);
                    final boolean cleared = ComponentUtil.getChatSessionManager().clearSession(sessionId, clearUserId);
                    if (cleared) {
                        if (logger.isDebugEnabled()) {