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();

            final FessConfig fessConfig = ComponentUtil.getFessConfig();

            String scrollId = null;
            try {
                if (logger.isDebugEnabled()) {
                    logger.debug("Query DSL: {}", searchRequestBuilder);
                }
                SearchResponse response = searchRequestBuilder.execute().actionGet(ComponentUtil.getFessConfig().getIndexSearchTimeout());

    private void upgradeFrom14_8() {
        // nothing
    }

    private void upgradeFrom14_9() {
        // update mapping text files
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        final String fesenType = fessConfig.getFesenType();
        switch (fesenType) {
        case Constants.FESEN_TYPE_CLOUD:
        case Constants.FESEN_TYPE_AWS:
            // nothing

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

    protected Hashtable<String, String> createEnvironment(final String initialContextFactory, final String securityAuthentication,