gistfile1.txt

    public static class Map extends Mapper<ByteBuffer, SortedMap<ByteBuffer, IColumn>, Text, Text> {

        @Override
        public void map(final ByteBuffer key, final SortedMap<ByteBuffer, IColumn> value, final Mapper<ByteBuffer, SortedMap<ByteBuffer, IColumn>, Text, Text>.Context context) throws IOException, InterruptedException {
            final StringBuffer string = new StringBuffer();
            for (java.util.Map.Entry<ByteBuffer, IColumn> entry : value.entrySet()) {
                string.append(ByteBufferUtil.string(entry.getKey())).append("\t").append(ByteBufferUtil.string(entry.getValue().value()));
            }

            context.write(new Text(ByteBufferUtil.string(key, Charset.forName("UTF-8"))), new Text(string.toString()));
        }
    }