package Sequenic.T2ext.Maintenance;

import java.util.AbstractSet;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import Sequenic.T2.Seq.Trace;
import Sequenic.T2.StreamTraces.TraceFilter;

public abstract class Reducer extends AbstractSet<Trace> implements TraceFilter
{	
	public int rejected() {
		return rejected;
	}
	
	public int accepted() {
		return accepted;
	}
	
	private boolean collectRejected = false;
	private boolean collectAccepted = false;
	private int accepted = 0;
	private int rejected = 0;
	private List<Trace> traces = new ArrayList<Trace>();
	
	public void collect(boolean rejected, boolean accepted)
	{
		collectAccepted = accepted;
		collectRejected = rejected;
	}
	
	protected void collect(Trace t, boolean accept)
	{
		if(accept)
		{
			accepted++;
			if(collectAccepted)
				traces.add(t);
		} else {
			rejected++;
			if(collectRejected)
				traces.add(t);
		}
	}
	
	@Override
	public void clear()
	{
		traces.clear();
		accepted = 0;
		rejected = 0;
	}
	
	@Override
	public int size()
	{
		return traces.size();
	}
	
	@Override
	public Iterator<Trace> iterator()
	{
		return traces.iterator();
	}
}