FileDataSink result =
new FileDataSink(new StringTupleDataOutFormat(), this.outputPath, "Output");
result.setDegreeOfParallelism(this.degreeOfParallelism);
MapOperator lineItemFilter =
MapOperator.builder(new LineItemFilter())
.name("LineItem Filter")
.build();
lineItemFilter.setDegreeOfParallelism(this.degreeOfParallelism);
ReduceOperator groupByReturnFlag =