IOMultiplier.java example

Explorer
rapidminer-vega-master
/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2011 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package com.rapidminer.operator;

import com.rapidminer.operator.ports.InputPort;
import com.rapidminer.operator.ports.OutputPort;
import com.rapidminer.operator.ports.OutputPortExtender;

/** This operator copies its input to all connected output ports.
 * 
 * @author Simon Fischer
 *
 */
public class IOMultiplier extends Operator {

	private final InputPort inputPort = getInputPorts().createPort("input");
	private final OutputPortExtender outputExtender = new OutputPortExtender("output", getOutputPorts());
	
	public IOMultiplier(OperatorDescription description) {
		super(description);
		outputExtender.start();
		getTransformer().addRule(outputExtender.makePassThroughRule(inputPort));
	}
	
	@Override
	public void doWork() {
		IOObject input = inputPort.getAnyDataOrNull();
		if (input != null) {
			for (OutputPort outputPort : outputExtender.getManagedPorts()) {	
				outputPort.deliver(input.copy());			
			}
		}
	}

	/** The port whose IOObject is copied. */
	public InputPort getInputPort() {		
		return inputPort;
	}
}