}

    default String getNotificationLogin() {
        return getSystemProperty(Constants.NOTIFICATION_LOGIN, StringUtil.EMPTY);
    }

    default void setNotificationAdvanceSearch(final String value) {
        setSystemProperty(Constants.NOTIFICATION_ADVANCE_SEARCH, value);
    }

    default String getNotificationAdvanceSearch() {

        fessConfig.setNotificationLogin(form.notificationLogin);
        fessConfig.setNotificationSearchTop(form.notificationSearchTop);
        fessConfig.setNotificationAdvanceSearch(form.notificationAdvanceSearch);
        fessConfig.setSlackWebhookUrls(form.slackWebhookUrls);
        fessConfig.setGoogleChatWebhookUrls(form.googleChatWebhookUrls);