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Core library of the Free Evolutionary Algorithm Toolkit

There is a newer version: 0.4.7

/*
 * This file is part of FrEAK. For licensing and copyright information
 * please see the file COPYING in the root directory of this
 * distribution or contact .
 */

package freak.core.graph;

import java.util.*;

import freak.core.event.*;
import freak.core.population.*;

/**
 * The output of an Operator is send through the OutPorts.
 * An OutPort can only connect to an InPort (which means the partner is set
 * to an InPort).  
 * 
 * @author Matthias, Dirk
 */

public class OutPort extends Port implements IndividualListEventSource {

	private HashSet individualListEventListeners = new HashSet();

	/**
	 * Creates a new OutPort.
	 * 
	 * @param operator a link back to the operator.
	 * @param number the index number of the port.
	 */
	public OutPort(Operator operator, int number) {
		super(operator, number);
	}

	/**
	 * Sends a list of individuals to the communication partner (if present).
	 * 
	 * @param individuals the list of individuals to send.
	 */
	public void send(IndividualList individuals) {
		
		// send event if listeners are present
		if (individualListEventListeners.size() > 0) {

			//create event
			IndividualListEvent evt = new IndividualListEvent(this, individuals);

			//send event
			for (Iterator iter = individualListEventListeners.iterator(); iter.hasNext();) {
				((IndividualListEventListener)iter.next()).individualList(evt);
			}
		}

		for (Iterator iter = getPartnerIterator(); iter.hasNext();) {
			((InPort)iter.next()).put(individuals);
		}		
	}

	public void addPartner(Port partner) {
		if ((partner == null) || (partner instanceof InPort)) {
			super.addPartner(partner);
		} else {
			throw new UnsupportedOperationException("Can't connect two outPorts.");
		}
	}

	/* (non-Javadoc)
	 * @see freak.core.event.IndividualListEventSource#addIndividualListEventListener(freak.core.event.IndividualListEventListener)
	 */
	public void addIndividualListEventListener(IndividualListEventListener l) {
		individualListEventListeners.add(l);
	}

	/* (non-Javadoc)
	 * @see freak.core.event.IndividualListEventSource#removeIndividualListEventListener(freak.core.event.IndividualListEventListener)
	 */
	public void removeIndividualListEventListener(IndividualListEventListener l) {
		individualListEventListeners.remove(l);
	}
}