Examples of java.nio.ByteBuffer.mark()

java.nio.ByteBuffer.mark()

      if(capacity < (metasize+dataSize)) {
        // try to allocate less meta space, because we have sample data
        metasize = METASIZE*(capacity/(perItem+METASIZE));
      }
      ByteBuffer reserved = source.duplicate();
      reserved.mark();
      LOG.info("reserved.remaining() = "+reserved.remaining());
      LOG.info("reserved.size = "+metasize);
      reserved.position(metasize);
      kvbuffer = reserved.slice();
      reserved.flip();

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        assert buffer != null;
        if (buffer.remaining() == 0)
            return ByteBufferUtil.EMPTY_BYTE_BUFFER;
        ByteBuffer cloned = allocate(buffer.remaining());


        cloned.mark();
        cloned.put(buffer.duplicate());
        cloned.reset();
        return cloned;
    }

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        assert buffer != null;
        if (buffer.remaining() == 0)
            return ByteBufferUtil.EMPTY_BYTE_BUFFER;
        ByteBuffer cloned = allocate(buffer.remaining(), opGroup);


        cloned.mark();
        cloned.put(buffer.duplicate());
        cloned.reset();
        return cloned;
    }

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      src.position(start);
          
      while (src.hasRemaining()) {
        if (b == src.get()) { // matching first byte
          src.mark(); // save position in loop
          tgt.mark(); // save position in target
          boolean found = true;
          int pos = src.position()-1;
          while (tgt.hasRemaining()) {
            if (!src.hasRemaining()) { // src expired first
              tgt.reset();

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      String s;
      if (o instanceof ByteBuffer) {
        // special case since GenericData.toString() is incorrect for bytes
        // note that this does not handle the case of a default value with nested bytes
        ByteBuffer bytes = ((ByteBuffer) o);
        bytes.mark();
        byte[] data = new byte[bytes.remaining()];
        bytes.get(data);
        bytes.reset(); // put the buffer back the way we got it
        s = new String(data, "ISO-8859-1");
        char[] quoted = JsonStringEncoder.getInstance().quoteAsString(s);

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      src.position(start);
          
      while (src.hasRemaining()) {
        if (b == src.get()) { // matching first byte
          src.mark(); // save position in loop
          tgt.mark(); // save position in target
          boolean found = true;
          int pos = src.position()-1;
          while (tgt.hasRemaining()) {
            if (!src.hasRemaining()) { // src expired first
              tgt.reset();

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                    pageData.reset();
                    nbStored = 0;
                }
                else
                {
                    pageData.mark();
                    pageData.position( pagePos );
                    pageData.put( bytes, bytes.length - nbStored, remaining );
                    pageData.reset();
                    pageNb++;

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     * Dump a pageIO
     */
    private void dump( PageIO pageIo )
    {
        ByteBuffer buffer = pageIo.getData();
        buffer.mark();
        byte[] longBuffer = new byte[LONG_SIZE];
        byte[] intBuffer = new byte[INT_SIZE];


        // get the next page offset
        buffer.get( longBuffer );

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            // And now, write the bytes until we have none
            while ( nbStored > 0 )
            {
                if ( remaining > nbStored )
                {
                    pageData.mark();
                    pageData.position( pagePos );
                    pageData.put( bytes, bytes.length - nbStored, nbStored );
                    pageData.reset();
                    nbStored = 0;
                }

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                    pageData.reset();
                    nbStored = 0;
                }
                else
                {
                    pageData.mark();
                    pageData.position( pagePos );
                    pageData.put( bytes, bytes.length - nbStored, remaining );
                    pageData.reset();
                    pageNb++;
                    pageData = pageIos[pageNb].getData();

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