}

    default String getNotificationAdvanceSearch() {
        return getSystemProperty(Constants.NOTIFICATION_ADVANCE_SEARCH, StringUtil.EMPTY);
    }

    default void setNotificationSearchTop(final String value) {
        setSystemProperty(Constants.NOTIFICATION_SEARCH_TOP, value);
    }

    default String getNotificationSearchTop() {

        fessConfig.setLdapInitialContextFactory(form.ldapInitialContextFactory != null ? form.ldapInitialContextFactory : StringUtil.EMPTY);
        fessConfig.setNotificationLogin(form.notificationLogin);
        fessConfig.setNotificationSearchTop(form.notificationSearchTop);
        fessConfig.setNotificationAdvanceSearch(form.notificationAdvanceSearch);
        fessConfig.setSlackWebhookUrls(form.slackWebhookUrls);