}
    }

    protected void addClickCountField(final Map<String, Object> doc) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String url = (String) doc.get(fessConfig.getIndexFieldUrl());
        if (StringUtil.isNotBlank(url)) {
            final SearchLogHelper searchLogHelper = ComponentUtil.getSearchLogHelper();
            final int count = searchLogHelper.getClickCount(url);