Examples of java.io.InputStream.mark()

java.io.InputStream.mark()
Set a Mark position in this InputStream. The parameter readLimit indicates how many bytes can be read before a mark is invalidated. Sending reset() will reposition the Stream back to the marked position provided readLimit has not been surpassed.
This default implementation does nothing and concrete subclasses must provide their own implementations. @param readlimit the number of bytes to be able to read before invalidating the mark.


    @Override
    public void mark(int readlimit) {
      InputStream in = getInputStream();
      if (in != null) {
        in.mark(readlimit);
      }
    }


    @Override
    public void reset() throws IOException {

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   */
  public void set(IStorage iStorage) throws CoreException {
    resetAll();
    InputStream inputStream = iStorage.getContents();
    InputStream resettableStream = new BufferedInputStream(inputStream, CodedIO.MAX_BUF_SIZE);
    resettableStream.mark(CodedIO.MAX_MARK_SIZE);
    set(resettableStream);
    // TODO we'll need to "remember" IFile, or
    // get its (or its project's) settings, in case
    // those are needed to handle cases when the
    // encoding is not in the file stream.

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   */
  public void set(IStorage iStorage) throws CoreException {
    resetAll();
    InputStream inputStream = iStorage.getContents();
    InputStream resettableStream = new BufferedInputStream(inputStream, CodedIO.MAX_BUF_SIZE);
    resettableStream.mark(CodedIO.MAX_MARK_SIZE);
    set(resettableStream);
    // TODO we'll need to "remember" IFile, or
    // get its (or its project's) settings, in case
    // those are needed to handle cases when the
    // encoding is not in the file stream.

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            rewindStream((InputStream)in, hdrLen);
        } else {
            final InputStream srcIn = (InputStream)in;
            final boolean markSet = srcIn.markSupported();
            if (markSet) {
                srcIn.mark(MAX_STREAM_HEADER_LENGTH);
            }
            byte[] header = new byte[MAX_STREAM_HEADER_LENGTH];
            int read = in.read(header);
            // Expect at least two header bytes.
            if (SanityManager.DEBUG) {

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    }
    return new InputStream() {
      @Override  public int read() throws IOException { return delegee.read();  }
      @Override  public int read(byte[] b) throws IOException { return delegee.read(b);  }
      @Override  public int available() throws IOException {  return delegee.available();  }
      @Override  public synchronized void mark(int readlimit) { delegee.mark(readlimit);  }
      @Override  public boolean markSupported() { return delegee.markSupported(); }
      @Override  public int read(byte[] b, int off, int len) throws IOException { return delegee.read(b, off, len); }
      @Override  public synchronized void reset() throws IOException {  delegee.reset(); }
      @Override  public long skip(long n) throws IOException {  return delegee.skip(n);  }
      @Override

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                    } catch (PrivilegedActionException pae) {
                        throw (IOException) pae.getException();
                    }
                    
                    // Check for zip header magic 0x50 0x4b 0x03 0x04
                    is.mark(0);
                    boolean zipHeaderMatch = is.read() == 0x50 && is.read() == 0x4b && is.read() == 0x03 && 
                        is.read() == 0x04;
                    is.reset();
                    
                    if (zipHeaderMatch) {

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        try {
            String result;
            if (object instanceof ByteArrayInputStream) {
                InputStream is = (InputStream) object;
                byte[] data = new byte[is.available()];
                is.mark(0);
                is.read(data);
                is.reset();
                // Heuristic to check if this is a string
                if (isBinary(data)) {
                    result = Arrays.toString(data);

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            bytes[i] = (byte) i;
        }
        InputStream in = new BufferedInputStream(
                new ByteArrayInputStream(bytes), 12);
        in.skip(6);
        in.mark(14);
        in.read(new byte[14], 0, 14);
        in.reset();
        assertTrue("Wrong bytes", in.read() == 6 && in.read() == 7);


        in = new BufferedInputStream(new ByteArrayInputStream(bytes), 12);

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        in.reset();
        assertTrue("Wrong bytes", in.read() == 6 && in.read() == 7);


        in = new BufferedInputStream(new ByteArrayInputStream(bytes), 12);
        in.skip(6);
        in.mark(8);
        in.skip(7);
        in.reset();
        assertTrue("Wrong bytes 2", in.read() == 6 && in.read() == 7);


        BufferedInputStream buf = new BufferedInputStream(

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    try {
      // I need to be able to move back in the stream if this is not a pb serialization so I can
      // do the Writable decoding instead.
      in = in.markSupported()? in: new BufferedInputStream(in);
      int pblen = ProtobufUtil.lengthOfPBMagic();
      in.mark(pblen);
      byte [] pbuf = new byte[pblen];
      int read = in.read(pbuf);
      if (read != pblen) throw new IOException("read=" + read + ", wanted=" + pblen);
      // WATCHOUT! Return in middle of function!!!
      if (ProtobufUtil.isPBMagicPrefix(pbuf)) return convert(FSProtos.Reference.parseFrom(in));

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