}
        fessConfig = ComponentUtil.getFessConfig();
        dataSerializer = ComponentUtil.getComponent("dataSerializer");
    }

    /**
     * Returns the Fess configuration instance.
     *
     * @return the Fess configuration
     */
    @Override
    public FessConfig getFessConfig() {
        return fessConfig;
    }

    /**

            return;
        }

        if (!ComponentUtil.getFessConfig().isUserFavorite()) {
            writeJsonResponse(HttpServletResponse.SC_BAD_REQUEST, escapeJsonKeyValue(MESSAGE_FIELD, "Unsupported operation."));
            return;
        }

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final UserInfoHelper userInfoHelper = ComponentUtil.getUserInfoHelper();

     * @return The default group list.
     */
    protected List<String> getDefaultGroupList() {
        String value = ComponentUtil.getFessConfig().getSystemProperty(ENTRAID_DEFAULT_GROUPS);
        if (StringUtil.isBlank(value)) {
            value = ComponentUtil.getFessConfig().getSystemProperty(AAD_DEFAULT_GROUPS);
        }
        if (StringUtil.isBlank(value)) {
            return Collections.emptyList();
        }

    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        escapedHighlightPre = LaFunctions.h(originalHighlightTagPre);
        escapedHighlightPost = LaFunctions.h(originalHighlightTagPost);
        highlightTagPre = fessConfig.getQueryHighlightTagPre();

     * @return the list of LlmMessages representing the conversation history
     */
    protected List<LlmMessage> extractHistory(final ChatSession session) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String assistantContentMode = fessConfig.getOrDefault("rag.chat.history.assistant.content", "smart_summary");

        final LlmClient client = llmClientManager.getClient();

     */
    protected int getConfigInt(final String keySuffix, final int defaultValue) {
        final String key = getConfigPrefix() + "." + keySuffix;
        final String configValue = ComponentUtil.getFessConfig().getOrDefault(key, null);
        if (configValue != null) {
            try {
                final int value = Integer.parseInt(configValue);
                if (value > 0) {
                    return value;

        new TermRangeQueryCommand().register();
        new WildcardQueryCommand().register();
    }

    private void setQueryType(final String queryType) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String get(String propertyKey) {
                return fessConfig.get(propertyKey);
            }

     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }
        fessConfig = ComponentUtil.getFessConfig();
    }

    /**
     * Creates the environment for LDAP connection.
     *
     * @param initialContextFactory The initial context factory.
     * @param securityAuthentication The security authentication.