public static final String LDAP_MEMBEROF_ATTRIBUTE = "ldap.memberof.attribute";

    public static final String NOTIFICATION_LOGIN = "notification.login";

    public static final String NOTIFICATION_SEARCH_TOP = "notification.search.top";

    public static final String NOTIFICATION_ADVANCE_SEARCH = "notification.advance.search";

    public static final String STORAGE_ENDPOINT = "storage.endpoint";

    /** The key of the message: Unknown */
    public static final String LABELS_search_unknown = "{labels.search_unknown}";

    /** The key of the message: Back to top */
    public static final String LABELS_footer_back_to_top = "{labels.footer_back_to_top}";

    /** The key of the message: Fess */
    public static final String LABELS_header_brand_name = "{labels.header_brand_name}";

    /** The key of the configuration. e.g. ou=People,dc=fess,dc=codelibs,dc=org */
    String LDAP_ADMIN_USER_BASE_DN = "ldap.admin.user.base.dn";

    /** The key of the configuration. e.g. organizationalPerson,top,person,inetOrgPerson */
    String LDAP_ADMIN_USER_OBJECT_CLASSES = "ldap.admin.user.object.classes";

    /** The key of the configuration. e.g. cn=%s */
    String LDAP_ADMIN_ROLE_FILTER = "ldap.admin.role.filter";

    }

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

    default String getNotificationSearchTop() {
        return getSystemProperty(Constants.NOTIFICATION_SEARCH_TOP, StringUtil.EMPTY);
    }

    default String getUserAgentName() {