/**
* {@inheritDoc}
*
* @see Writable#readFields(DataInput)
*/
public void readFields(DataInput in) throws IOException {
BSONDecoder dec = new BSONDecoder();
BSONCallback cb = new BasicBSONCallback();
// Read the BSON length from the start of the record
int dataLen = in.readInt();
byte[] buf = new byte[dataLen];
in.readFully(buf);
dec.decode(buf, cb);
_doc = (BSONObject) cb.get();
log.info("Decoded a BSON Object: " + _doc);
}
