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

            @Override
            public int getWeight() {
                return 10;
            }
        });

        }
        if (extractorMap.containsKey(key)) {
            final Extractor oldExtractor = extractorMap.get(key);
            if (oldExtractor.getWeight() > extractor.getWeight()) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Ignored {} on {}. Use {}.", extractor.getClass().getName(), key, oldExtractor.getClass().getName());
                }

    void setDepth(Integer depth);

    Long getLastModified();

    void setLastModified(Long lastModified);

    Long getCreateTime();

    void setCreateTime(Long createTime);

    float getWeight();

    void setWeight(float weight);

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;
    }

     */
    @Override
    public void setLastModified(final Long lastModified) {
        this.lastModified = lastModified;
    }

    @Override
    public float getWeight() {
        return weight;
    }

    @Override
    public void setWeight(float weight) {
        this.weight = weight;
    }

    @Override
    public String toString() {

        BufferedImage img = ImageIO.read(file);
        logger.debug("width: {}, height: {}", img.getWidth(), img.getHeight());
        assertEquals("Image Width", width, img.getWidth());
        assertEquals("Image Height", height, img.getHeight());
    }

                reader.setInput(input);
                final ImageReadParam param = reader.getDefaultReadParam();
                final int width = reader.getWidth(0);
                final int height = reader.getHeight(0);
                if (width <= 0 || height <= 0) {
                    return Result.NO_IMAGE;
                }
                if (!fessConfig.validateThumbnailSize(width, height)) {