if (StringUtil.isNotBlank(fileName) && fessConfig.isCrawlerDocumentAppendFilename()) {
            putResultDataBody(dataMap, fessConfig.getIndexFieldContent(), content + " " + fileName);
        } else {
            putResultDataBody(dataMap, fessConfig.getIndexFieldContent(), content);
        }
    }

    /**
     * Retrieves the crawling configuration for the given response data.
     *

            }

            @Override
            public String getIndexFieldCache() {
                return "cache";
            }

            @Override
            public String getIndexFieldContent() {
                return "content";
            }

            @Override
            public String getIndexFieldLabel() {
                return "label";
            }

            @Override

        responseData.addMetaData(Extractor.class.getSimpleName(), extractor);
        final String body = documentHelper.getContent(crawlingConfig, responseData, bodyBase, dataMap);
        putResultDataBody(dataMap, fessConfig.getIndexFieldContent(), body);
        if ((fieldConfigs.getConfig(fessConfig.getIndexFieldCache())
                .map(org.codelibs.fess.crawler.util.FieldConfigs.Config::isCache)

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

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