package org.archive.hadoop.func;
import java.io.IOException;
import java.util.ArrayList;
import org.apache.pig.EvalFunc;
import org.apache.pig.data.Tuple;
import org.apache.pig.data.TupleFactory;
public class TupleFunc extends EvalFunc<Tuple> {
protected TupleFactory mTupleFactory = TupleFactory.getInstance();
private ArrayList<Object> mProtoTuple = null;
public TupleFunc() {
mProtoTuple = new ArrayList<Object>();
}
private Tuple makeTuple(String va[]) {
if(va == null) {
return null;
}
for(String v : va) {
mProtoTuple.add(v);
}
Tuple t = mTupleFactory.newTuple(mProtoTuple);
mProtoTuple.clear();
return t;
}
@Override
public Tuple exec(Tuple tup) throws IOException {
if(tup == null || tup.size() != 2) {
return null;
}
String in = tup.get(0).toString();
String split = tup.get(1).toString();
return makeTuple(in.split(split));
}
}