if (StringUtil.isNotBlank(digest)) {
            putResultDataBody(dataMap, fessConfig.getIndexFieldDigest(), digest);
        } else {
            putResultDataBody(dataMap, fessConfig.getIndexFieldDigest(),
                    documentHelper.getDigest(responseData, body, dataMap, fessConfig.getCrawlerDocumentHtmlMaxDigestLengthAsInteger()));
        }
        // segment

                putResultDataBody(dataMap, fessConfig.getIndexFieldHasCache(), Constants.TRUE);
            }
        }
        // digest
        putResultDataBody(dataMap, fessConfig.getIndexFieldDigest(),
                documentHelper.getDigest(responseData, bodyBase, dataMap, fessConfig.getCrawlerDocumentFileMaxDigestLengthAsInteger()));
        // title
        if (!hasTitle(dataMap)) {

     * The value is, e.g. digest <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldDigest();

    /**
     * Get the value for the key 'index.field.title'. <br>
     * The value is, e.g. title <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)