}

    /**
     * Normalizes the filename by replacing special characters.
     * @param filename The filename to normalize.
     * @return The normalized filename.
     */
    protected String normalizeFilename(final String filename) {
        if (StringUtil.isBlank(filename)) {
            return filename;
        }
        final StringBuilder buf = new StringBuilder(filename.length() + 10);

 */
public interface MimeTypeHelper {
    /**
     * Determines the content type of the given input stream and filename.
     * @param is the input stream to analyze
     * @param filename the filename to help determine the content type
     * @return the detected content type
     */
    String getContentType(InputStream is, String filename);

    /**

        this.mimeType = mimeType;
        return this;
    }

    /**
     * Sets the filename of the content to extract.
     *
     * @param filename the filename to set
     * @return this builder instance for method chaining
     */
    public ExtractorBuilder filename(final String filename) {
        this.filename = filename;
        return this;
    }

    /**
     * Sets the name of the extractor to use.

import org.codelibs.fess.crawler.exception.ExtractException;

/**
 * Extracts the filename from the parameters.
 */
public class FilenameExtractor extends AbstractExtractor {

    /**
     * Constructs a new FilenameExtractor.
     */
    public FilenameExtractor() {
        // Default constructor
    }

    /**
     * Extracts the filename from the parameters.
     * @param in The input stream (not used).

                    throw new MaxLengthExceededException("Extracted size is " + contentSize + " > " + maxContentSize);
                }
                final String filename = head.getPath();
                final String mimeType = mimeTypeHelper.getContentType(null, filename);
                if (mimeType != null) {
                    final Extractor extractor = extractorFactory.getExtractor(mimeType);
                    if (extractor != null) {

    }

    /**
     * Extracts text from an embedded file using the appropriate extractor.
     * @param filename the filename of the embedded file
     * @param embeddedFile the embedded file to extract text from
     * @param writer the writer to append extracted text to
     */
    protected void extractFile(final String filename, final PDEmbeddedFile embeddedFile, final StringWriter writer) {

                    throw new MaxLengthExceededException("Extracted size is " + contentSize + " > " + maxContentSize);
                }
                final String filename = entry.getName();
                final String mimeType = mimeTypeHelper.getContentType(null, filename);
                if (mimeType != null) {
                    final Extractor extractor = extractorFactory.getExtractor(mimeType);
                    if (extractor != null) {

                    throw new MaxLengthExceededException("Extracted size is " + contentSize + " > " + maxContentSize);
                }
                final String filename = entry.getName();
                final String mimeType = mimeTypeHelper.getContentType(null, filename);
                if (mimeType != null) {
                    final Extractor extractor = extractorFactory.getExtractor(mimeType);
                    if (extractor != null) {

        final ExtractorFactory extractorFactory = getExtractorFactory();
        try {
            final String filename = getDecodeText(bodyPart.getFileName());
            final String mimeType = mimeTypeHelper.getContentType(null, filename);
            if (mimeType != null) {
                final Extractor extractor = extractorFactory.getExtractor(mimeType);
                if (extractor != null) {

        assertEquals("test",
                extractorFactory.builder(new ByteArrayInputStream("test".getBytes()), null).filename("test.txt").extract().getContent());
    }

    public void test_addExtractor_weight() {
        final String key = "application/test";
        assertNull(extractorFactory.getExtractor(key));