Examples of java.nio.ByteBuffer.mark()

java.nio.ByteBuffer.mark()

          int sz = end - start;
          byte[] body = new byte[sz];
          buf.reset(); // go back to mark
          buf.get(body, 0, sz - 1); // read data
          buf.get(); // read '\n'
          buf.mark(); // new mark.
          start = buf.position();
          String s = new String(body);
          LOG.info("=> " + s);
        }
      }

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            int rd = in.read(buf);
            read += (rd < 0 ? 0 : rd); // rd == -1 if at end of stream.
            buf.flip();


            int start = buf.position();
            buf.mark();
            while (buf.hasRemaining()) {
              byte b = buf.get();
              if (b == '\n') {
                int end = buf.position();
                int sz = end - start;

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                int sz = end - start;
                byte[] body = new byte[sz];
                buf.reset(); // go back to mark
                buf.get(body, 0, sz - 1); // read data
                buf.get(); // read '\n'
                buf.mark(); // new mark.
                start = buf.position();
                String s = new String(body);
                LOG.info("=> " + s);
              }
            }

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      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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      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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        if ( kerberosMessageContainer.isTCP() )
        {
            if ( buf.remaining() > 4 )
            {
                kerberosMessageContainer.setTcpLength( buf.getInt() );
                buf.mark();
            }
            else
            {
                return;
            }

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                return;
            }
        }
        else
        {
            buf.mark();
        }


        while ( buf.hasRemaining() )
        {
            try

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                if ( kerberosMessageContainer.getState() == TLVStateEnum.PDU_DECODED )
                {
                    if ( IS_DEBUG )
                    {
                        LOG.debug( "Decoded KerberosMessage : " + kerberosMessageContainer.getMessage() );
                        buf.mark();
                    }


                    out.write( kerberosMessageContainer.getMessage() );


                    kerberosMessageContainer.clean();

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      sizes[i] = size;


      chunk.limit(pos + size);
      chunk.position(pos);
      buf = chunk.duplicate();
      buf.mark();


      pos += size;


      buf.put(sparseHeapCopy);
      buf.reset();

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    final ByteBuffer buf;
    if(direct) {
      if(aligned) {
        buf = ByteBuffers.allocateAlignedByteBuffer(size + offset, CACHE_LINE);
        buf.position(offset);
        buf.mark();
        buf.limit(size + offset);
      } else {
        buf = ByteBuffer.allocateDirect(size);
        buf.mark();
        buf.limit(size);

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