mappers.add(mapWorker_3);
mappers.add(mapWorker_4);
// one reducers
ConfigurableWorker reduceWorker_1 = new ConfigurableWorker("W_R1");
reduceWorker_1.setTaskProcessor(new URLMatchingProcessor());
// bind reducer to final result class
MapReduceURLMiningMain main = new MapReduceURLMiningMain();
reduceWorker_1.addListener(main);