Examples of org.apache.tika.mime.MimeTypes

org.apache.tika.mime.MimeTypes
This class is a MimeType repository. It gathers a set of MimeTypes and enables to retrieves a content-type from its name, from a file name, or from a magic character sequence.
The MIME type detection methods that take an {@link InputStream} asan argument will never reads more than {@link #getMinLength()} bytesfrom the stream. Also the given stream is never {@link InputStream#close() closed}, {@link InputStream#mark(int) marked}, or {@link InputStream#reset() reset} by the methods. Thus a client canuse the {@link InputStream#markSupported() mark feature} of the stream(if available) to restore the stream back to the state it was before type detection if it wants to process the stream based on the detected type.

  private static final Logger LOG = LoggerFactory.getLogger(MimeUtil.class.getName());


  public MimeUtil(Configuration conf) {
    tika = new Tika();
    ObjectCache objectCache = ObjectCache.get(conf);
    MimeTypes mimeTypez = (MimeTypes) objectCache.getObject(MimeTypes.class
        .getName());
    if (mimeTypez == null) {
      try {
          String customMimeTypeFile = conf.get("mime.types.file");
          if (customMimeTypeFile!=null && customMimeTypeFile.equals("")==false){

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          InputStream in = new ByteArrayInputStream(mimeTypesString.getBytes("UTF-8"));
          inputStreams.add(in);
        }
        
        if (inputStreams.size() > 0) {
          MimeTypes mimeTypes = MimeTypesFactory.create(inputStreams.toArray(new InputStream[inputStreams.size()]));
          ServiceLoader loader = new ServiceLoader();
          this.detector = new DefaultDetector(mimeTypes, loader);
        } else {
          throw new MorphlineCompilationException("Missing specification for MIME type mappings", config);
        }

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          InputStream in = new ByteArrayInputStream(mimeTypesString.getBytes("UTF-8"));
          inputStreams.add(in);
        }
        
        if (inputStreams.size() > 0) {
          MimeTypes mimeTypes = MimeTypesFactory.create(inputStreams.toArray(new InputStream[inputStreams.size()]));
          ServiceLoader loader = new ServiceLoader();
          this.detector = new DefaultDetector(mimeTypes, loader);
        } else {
          throw new MorphlineCompilationException("Missing specification for MIME type mappings", config);
        }

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     * @param type valid mime-type
     * @return extension if it's known for specified mime-type, or empty string
     * otherwise
     */
    public static String getExtensionByMimeType(String type) {
        MimeTypes types = getDefaultMimeTypes();
        try {
            return types.forName(type).getExtension();
        } catch (Exception e) {
            LOGGER.warn("Can't detect extension for MIME-type " + type, e);
            return "";
        }
    }

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  private static final Logger LOG = LoggerFactory.getLogger(MimeUtil.class.getName());


  public MimeUtil(Configuration conf) {
    tika = new Tika();
    ObjectCache objectCache = ObjectCache.get(conf);
    MimeTypes mimeTypez = (MimeTypes) objectCache.getObject(MimeTypes.class
        .getName());
    if (mimeTypez == null) {
      try {
          String customMimeTypeFile = conf.get("mime.types.file");
          if (customMimeTypeFile!=null && customMimeTypeFile.equals("")==false){

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        TikaConfig config = getConfig();
        if (cType == null) {
            Detector detector = config.getDetector();
            try {
                MediaType mediaType = detector.detect(is, metadata);
                MimeTypes types = config.getMimeRepository();
                MimeType mime = types.forName(mediaType.toString());
                metadata.set(Metadata.CONTENT_TYPE, mediaType.getSubtype());
                return mime.getExtension();
            } catch (IOException e) {
                //swallow
            } catch (MimeTypeException e) {

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