package cc.twittertools.piggybank;
import java.io.IOException;
import java.util.Iterator;
import org.apache.pig.EvalFunc;
import org.apache.pig.data.DataBag;
import org.apache.pig.data.Tuple;
// Sample usage: cc.twittertools.piggybank.GetLatitude($0#'geo'#'coordinates')
public class GetLatitude extends EvalFunc<String> {
public String exec(Tuple input) throws IOException {
DataBag bag = (DataBag) input.get(0);
Iterator<Tuple> it = bag.iterator();
if (!it.hasNext()) {
return null;
}
Tuple tup = it.next();
return (String) tup.get(0);
}
}