this.snippet = snippet;
        }

        /**
         * Gets the ViewHelper-processed URL for display.
         *
         * @return the URL link
         */
        public String getUrlLink() {
            return urlLink;
        }

        /**
         * Sets the ViewHelper-processed URL for display.
         *
         * @param urlLink the URL link
         */

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (doc.get(fessConfig.getResponseFieldUrlLink()) == null) {
            doc.put(fessConfig.getResponseFieldUrlLink(), ComponentUtil.getViewHelper().getUrlLink(doc));
        }
    }

    /**
     * Result of a search operation, including queryId and requestedTime.
     */
    protected static class ChatSearchResult {