Evaluator.java

import java.util.List;

import uk.ac.imperial.lsds.seep.api.API;
import uk.ac.imperial.lsds.seep.api.SeepTask;
import uk.ac.imperial.lsds.seep.api.data.ITuple;



public class Evaluator implements SeepTask {

	@Override
	public void close() {
		// TODO Auto-generated method stub

	}

	@Override
	public void processData(ITuple arg0, API arg1) {
		long value = arg0.getLong("value");
		
		// do some calculation with the utility function 
		arg1.storeEvaluateResults(value); // a long, as an abstract notion of quality
		
		String msg = "eval: "+arg1.id()+" -> "+value;
		System.out.println(msg);
		
		// propagate the results downstream
		arg1.send(arg0.getData());
	}

	@Override
	public void processDataGroup(List<ITuple> arg0, API arg1) {
		// TODO Auto-generated method stub

	}

	@Override
	public void setUp() {
		// TODO Auto-generated method stub

	}

}