}

    /**
     * Updates system properties from the application configuration.
     */
    public void updateSystemProperties() {
        final String value = ComponentUtil.getFessConfig().getAppValue();
        if (logger.isDebugEnabled()) {
            logger.debug("system.properties: {}", value);
        }
        if (StringUtil.isNotBlank(value)) {

        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public String getAppValue() {
                return appValue.get();
            }

            @Override
            public String getAppEncryptPropertyPattern() {
                return ".*password|.*key|.*token|.*secret";

    }

    default void setAppValue(final String value) {
        setSystemProperty(Constants.APP_VALUE_PROPERTY, value);
        propMap.remove(APP_VALUES);
    }

    default String getAppValue() {
        return getSystemProperty(Constants.APP_VALUE_PROPERTY, StringUtil.EMPTY);
    }

    default void setDefaultLabelValue(final String value) {

        form.searchUseBrowserLocale = fessConfig.isBrowserLocaleForSearchUsed() ? Constants.TRUE : Constants.FALSE;
        form.ssoType = fessConfig.getSsoType();
        form.appValue = fessConfig.getAppValue();
        form.defaultLabelValue = fessConfig.getDefaultLabelValue();
        form.defaultSortValue = fessConfig.getDefaultSortValue();
        form.virtualHostValue = fessConfig.getVirtualHostValue();