Examples of java.nio.ByteBuffer.arrayOffset()

java.nio.ByteBuffer.arrayOffset()
Returns the offset of the byte array which this buffer is based on, if there's one.
The offset is the index of the array corresponds to the zero position of the buffer.
@return The offset of the byte array which this buffer is based on @exception ReadOnlyBufferException If this buffer is based on a readonly array @exception UnsupportedOperationException If this buffer is not based on an array

                    if (lastRow != null)
                    {
                        if (tuple.size() == 0) // lastRow is a new one
                        {
                            key = (ByteBuffer)reader.getCurrentKey();
                            tuple.append(new DataByteArray(key.array(), key.position()+key.arrayOffset(), key.limit()+key.arrayOffset()));
                        }
                        for (Map.Entry<ByteBuffer, IColumn> entry : lastRow.entrySet())
                        {
                            bag.add(columnToTuple(entry.getValue(), cfDef, parseType(cfDef.getComparator_type())));
                        }

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                    if (lastRow != null)
                    {
                        if (tuple.size() == 0) // lastRow is a new one
                        {
                            key = (ByteBuffer)reader.getCurrentKey();
                            tuple.append(new DataByteArray(key.array(), key.position()+key.arrayOffset(), key.limit()+key.arrayOffset()));
                        }
                        for (Map.Entry<ByteBuffer, IColumn> entry : lastRow.entrySet())
                        {
                            bag.add(columnToTuple(entry.getValue(), cfDef, parseType(cfDef.getComparator_type())));
                        }

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                    return tuple;
                }
                if (key == null) // only set the key on the first iteration
                {
                    key = (ByteBuffer)reader.getCurrentKey();
                    tuple.append(new DataByteArray(key.array(), key.position()+key.arrayOffset(), key.limit()+key.arrayOffset()));
                }
                SortedMap<ByteBuffer,IColumn> row = (SortedMap<ByteBuffer,IColumn>)reader.getCurrentValue();
                if (lastRow != null) // prepend what was read last time
                {
                    for (Map.Entry<ByteBuffer, IColumn> entry : lastRow.entrySet())

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                    return tuple;
                }
                if (key == null) // only set the key on the first iteration
                {
                    key = (ByteBuffer)reader.getCurrentKey();
                    tuple.append(new DataByteArray(key.array(), key.position()+key.arrayOffset(), key.limit()+key.arrayOffset()));
                }
                SortedMap<ByteBuffer,IColumn> row = (SortedMap<ByteBuffer,IColumn>)reader.getCurrentValue();
                if (lastRow != null) // prepend what was read last time
                {
                    for (Map.Entry<ByteBuffer, IColumn> entry : lastRow.entrySet())

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    FSDataInputStream file = fs.open(path);
    long size = fs.getFileStatus(path).getLen();
    int readSize = (int) Math.min(size, DIRECTORY_SIZE_GUESS);
    file.seek(size - readSize);
    ByteBuffer buffer = ByteBuffer.allocate(readSize);
    file.readFully(buffer.array(), buffer.arrayOffset() + buffer.position(),
      buffer.remaining());
    int psLen = buffer.get(readSize - 1);
    ensureOrcFooter(file, path, psLen, buffer);
    int psOffset = readSize - 1 - psLen;
    CodedInputStream in = CodedInputStream.newInstance(buffer.array(),

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      buffer.remaining());
    int psLen = buffer.get(readSize - 1);
    ensureOrcFooter(file, path, psLen, buffer);
    int psOffset = readSize - 1 - psLen;
    CodedInputStream in = CodedInputStream.newInstance(buffer.array(),
      buffer.arrayOffset() + psOffset, psLen);
    OrcProto.PostScript ps = OrcProto.PostScript.parseFrom(in);
    checkOrcVersion(LOG, path, ps.getVersionList());
    int footerSize = (int) ps.getFooterLength();
    bufferSize = (int) ps.getCompressionBlockSize();
    switch (ps.getCompression()) {

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    int extra = Math.max(0, psLen + 1 + footerSize - readSize);
    if (extra > 0) {
      file.seek(size - readSize - extra);
      ByteBuffer extraBuf = ByteBuffer.allocate(extra + readSize);
      file.readFully(extraBuf.array(),
        extraBuf.arrayOffset() + extraBuf.position(), extra);
      extraBuf.position(extra);
      extraBuf.put(buffer);
      buffer = extraBuf;
      buffer.position(0);
      buffer.limit(footerSize);

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    int tailLength = (int) stripe.getFooterLength();


    // read the footer
    ByteBuffer tailBuf = ByteBuffer.allocate(tailLength);
    file.seek(offset);
    file.readFully(tailBuf.array(), tailBuf.arrayOffset(), tailLength);
    return OrcProto.StripeFooter.parseFrom(InStream.create("footer",
        new ByteBuffer[]{tailBuf}, new long[]{0}, tailLength, codec,
        bufferSize));
  }

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            assert key != null && cf != null;
            
            // and wrap it in a tuple
      Tuple tuple = TupleFactory.getInstance().newTuple(2);
            ArrayList<Tuple> columns = new ArrayList<Tuple>();
            tuple.set(0, new DataByteArray(key.array(), key.position()+key.arrayOffset(), key.limit()+key.arrayOffset()));
            for (Map.Entry<ByteBuffer, IColumn> entry : cf.entrySet())
            {                    
                columns.add(columnToTuple(entry.getKey(), entry.getValue()));
            }

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            assert key != null && cf != null;
            
            // and wrap it in a tuple
      Tuple tuple = TupleFactory.getInstance().newTuple(2);
            ArrayList<Tuple> columns = new ArrayList<Tuple>();
            tuple.set(0, new DataByteArray(key.array(), key.position()+key.arrayOffset(), key.limit()+key.arrayOffset()));
            for (Map.Entry<ByteBuffer, IColumn> entry : cf.entrySet())
            {                    
                columns.add(columnToTuple(entry.getKey(), entry.getValue()));
            }

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