* Handles file, SMB, FTP, and HTTP protocols.
     *
     * @param document the document data map
     * @return the processed URL link
     */
    public String getUrlLink(final Map<String, Object> document) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        String url = DocumentUtil.getValue(document, fessConfig.getIndexFieldUrl(), String.class);