Read Little Endian Input File Format

[Mike S]

The input file to my M/R job is a file with binary data (20 mix of
int, long, float and double per record) which are all saved in little
endian. I have implement my custom record reader to read a record and
to do so I am currently using the ByteBuffer to convert every entry in
the file. I am wondering if there is a more efficient way of doing?

public void readFields(DataInput dataInput) throws IOException
{
                byte[] buffer = new byte[4];
                dataInput.readFully(buffer);
                
fieldA.set(ByteBuffer.wrap(buffer).order(ByteOrder.LITTLE_ENDIAN).getInt());

                ....
                ....

}