putResultDataBody(dataMap, fessConfig.getIndexFieldSite(), getSite(url, urlEncoding));
        // filename
        if (StringUtil.isNotBlank(fileName)) {
            putResultDataBody(dataMap, fessConfig.getIndexFieldFilename(), fileName);
        }
        // url
        putResultDataBody(dataMap, fessConfig.getIndexFieldUrl(), url);
        // created
        final Date now = systemHelper.getCurrentTime();

     * The value is, e.g. filename <br>
     * comment: Field name for file name in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldFilename();

    /**
     * Get the value for the key 'index.field.thumbnail'. <br>
     * The value is, e.g. thumbnail <br>
     * comment: Field name for thumbnail in the index.