@Override
public void convertString(UTF8StringPointable stringp, DataOutput dOut) throws SystemException, IOException {
byte result = 2;
ICharacterIterator charIterator = new LowerCaseCharacterIterator(new UTF8StringCharacterIterator(stringp));
charIterator.reset();
int c1 = charIterator.next();
int c2 = charIterator.next();
int c3 = charIterator.next();
int c4 = charIterator.next();