if (getLogger().isDebugEnabled()) {
                getLogger().debug("ExtractData: {}", extractData);
            }
            // meta
            extractData.getKeySet().stream().filter(k -> extractData.getValues(k) != null).forEach(key -> {
                final String[] values = extractData.getValues(key);
                metaDataMap.put(key, values);

                // meta -> content

                    }
                }
                final ExtractData extractData = new ExtractData(content);
                extractData.putValue("Content-Length", Long.toString(contentLength));

                final String[] names = metadata.names();
                Arrays.sort(names);
                for (final String name : names) {
                    extractData.putValues(name, metadata.getValues(name));
                }

            @Override
            public ExtractData getText(InputStream in, Map<String, String> params) {
                return null;
            }
        });
        assertEquals(1, extractorFactory.getExtractor(key).getWeight());
        extractorFactory.addExtractor(key, new Extractor() {
            @Override
            public ExtractData getText(InputStream in, Map<String, String> params) {

 */
package org.codelibs.fess.crawler.extractor;

import java.io.InputStream;
import java.util.Map;

import org.codelibs.fess.crawler.entity.ExtractData;

/**
 * @author shinsuke
 *
 */
public interface Extractor {

    ExtractData getText(InputStream in, Map<String, String> params);

    default int getWeight() {
        return 1;
    }

import org.codelibs.core.io.CopyUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.crawler.container.CrawlerContainer;
import org.codelibs.fess.crawler.entity.ExtractData;
import org.codelibs.fess.crawler.exception.CrawlingAccessException;
import org.codelibs.fess.crawler.exception.ExtractException;
import org.codelibs.fess.crawler.exception.MaxLengthExceededException;