Java Code Examples for org.apache.pig.data.DataType#toBytes()

The following examples show how to use org.apache.pig.data.DataType#toBytes() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: BuildBloom.java    From spork with Apache License 2.0 6 votes vote down vote up 
@Override
public Tuple exec(Tuple input) throws IOException {
    if (input == null || input.size() == 0) return null;

    // Strip off the initial level of bag
    DataBag values = (DataBag)input.get(0);
    Iterator<Tuple> it = values.iterator();
    Tuple t = it.next();

    // If the input tuple has only one field, then we'll extract
    // that field and serialize it into a key.  If it has multiple
    // fields, we'll serialize the whole tuple.
    byte[] b;
    if (t.size() == 1) b = DataType.toBytes(t.get(0));
    else b = DataType.toBytes(t, DataType.TUPLE);

    Key k = new Key(b);
    filter = new BloomFilter(vSize, numHash, hType);
    filter.add(k);

    return TupleFactory.getInstance().newTuple(bloomOut());
}
Example 2
Source File: Bloom.java    From spork with Apache License 2.0 5 votes vote down vote up 
@Override
public Boolean exec(Tuple input) throws IOException {
    if (filter == null) {
        init();
    }
    byte[] b;
    if (input.size() == 1) b = DataType.toBytes(input.get(0));
    else b = DataType.toBytes(input, DataType.TUPLE);

    Key k = new Key(b);
    return filter.membershipTest(k);
}