final FilterChain chain) {
        if (!acceptHttpMethod(request, GET)) {
            return;
        }
        final SearchHelper searchHelper = ComponentUtil.getSearchHelper();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        if (!fessConfig.isAcceptedSearchReferer(request.getHeader("referer"))) {

        return getComponent(PLUGIN_HELPER);
    }

    public static ThemeHelper getThemeHelper() {
        return getComponent(THEME_HELPER);
    }

    public static SearchHelper getSearchHelper() {
        return getComponent(SEARCH_HELPER);
    }

    public static NotificationHelper getNotificationHelper() {
        return getComponent(NOTIFICATION_HELPER);
    }

    }

    protected void updateClickFieldInIndex(final Map<String, Integer> clickCountMap) {
        if (!clickCountMap.isEmpty()) {
            final SearchHelper searchHelper = ComponentUtil.getSearchHelper();
            final FessConfig fessConfig = ComponentUtil.getFessConfig();
            try {
                final UpdateRequest[] updateRequests =

        try {
            return facetCache.get(query + "\n" + permissionKey, () -> {
                final SearchHelper searchHelper = ComponentUtil.getSearchHelper();
                final SearchForm params = new SearchForm() {
                    @Override
                    public int getPageSize() {
                        return 0;
                    }