// host
        putResultDataBody(dataMap, fessConfig.getIndexFieldHost(), getHost(url));
        // site
        putResultDataBody(dataMap, fessConfig.getIndexFieldSite(), getSite(url, urlEncoding));
        // filename
        if (StringUtil.isNotBlank(fileName)) {
            putResultDataBody(dataMap, fessConfig.getIndexFieldFilename(), fileName);
        }
        // url

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

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