}
        }
        // digest
        putResultDataBody(dataMap, fessConfig.getIndexFieldDigest(),
                documentHelper.getDigest(responseData, bodyBase, dataMap, fessConfig.getCrawlerDocumentFileMaxDigestLengthAsInteger()));
        // title
        if (!hasTitle(dataMap)) {
            final String titleField = fessConfig.getIndexFieldTitle();
            dataMap.remove(titleField);

     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     * @throws NumberFormatException When the property is not integer.
     */
    Integer getCrawlerDocumentFileMaxDigestLengthAsInteger();

    /**
     * Get the value for the key 'crawler.document.file.append.meta.content'. <br>
     * The value is, e.g. true <br>
     * comment: Whether to append meta content from files.