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

The following examples show how to use org.apache.pig.data.DataType#toTuple() . 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: TestDataModel.java    From spork with Apache License 2.0 5 votes vote down vote up 
@Test(expected = ExecException.class)
public void testTupleConversionErr() throws Exception {
    List list = new ArrayList();
    try {
        DataType.toTuple(list);
    } catch (ExecException ee) {
        assertEquals(1071, ee.getErrorCode());
        throw ee;
    }
}
Example 2
Source File: TestDataModel.java    From spork with Apache License 2.0 5 votes vote down vote up 
@Test(expected = ExecException.class)
public void testTupleConversionErr1() throws Exception {
    DataByteArray ba = new DataByteArray("hello world");
    try {
        DataType.toTuple(ba);
    } catch (ExecException ee) {
        assertEquals(1071, ee.getErrorCode());
        throw ee;
    }
}
Example 3
Source File: TupleFromBag.java    From datafu with Apache License 2.0 5 votes vote down vote up 
@Override
public void accumulate(Tuple tinput) throws IOException {
	
	if (result == null) {
		try{
			DataBag samples = (DataBag) tinput.get(0);

			int index = ((Number)tinput.get(1)).intValue();
			for (Tuple tuple : samples) {
				if(tupleIndex == index){
					result = tuple;
					return;
				}
				tupleIndex++;
			}
		}
		catch (Exception e){
			// no logging was done in the original class, and I preserve this behavior
			// however, an exception would have caused null to be returned.
			// instead, I silently continue and attempt to reach the desired index
		}
		
		if (defaultResult == null && tinput.size() == 3){
			defaultResult = DataType.toTuple(tinput.get(2));
		}
	}
}