*
 */
public class DocumentHelper {
    private static final Logger logger = LogManager.getLogger(DocumentHelper.class);

    /** Prefix used for encoded similar document hashes */
    protected static final String SIMILAR_DOC_HASH_PREFIX = "$";

    /**
     * Default constructor for DocumentHelper.
     * Creates a new document helper instance.
     */

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final FileTypeHelper fileTypeHelper = ComponentUtil.getFileTypeHelper();
        final DocumentHelper documentHelper = ComponentUtil.getDocumentHelper();
        String url = responseData.getUrl();
        final String indexingTarget = crawlingConfig.getIndexingTarget(url);
        url = pathMappingHelper.replaceUrl(sessionId, url);

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final FileTypeHelper fileTypeHelper = ComponentUtil.getFileTypeHelper();
        final DocumentHelper documentHelper = ComponentUtil.getDocumentHelper();
        final LabelTypeHelper labelTypeHelper = ComponentUtil.getLabelTypeHelper();
        String url = responseData.getUrl();

import org.codelibs.fess.helper.CrawlingConfigHelper;
import org.codelibs.fess.helper.CrawlingInfoHelper;
import org.codelibs.fess.helper.CurlHelper;
import org.codelibs.fess.helper.DocumentHelper;
import org.codelibs.fess.helper.DuplicateHostHelper;
import org.codelibs.fess.helper.FileTypeHelper;
import org.codelibs.fess.helper.IndexingHelper;
import org.codelibs.fess.helper.IntervalControlHelper;

                } else if (similarDocHash != null) {
                    final DocumentHelper documentHelper = ComponentUtil.getDocumentHelper();
                    context.addQuery(boolQuery -> {
                        boolQuery.filter(QueryBuilders.termQuery(fessConfig.getIndexFieldContentMinhashBits(),
                                documentHelper.decodeSimilarDocHash(similarDocHash)));
                    });
                }