// @(#)HelloWorld2.java

import drcl.comp.*;

/** This component sends "Hello World!" at "port@" every <i>period</i> seconds.  */
public class HelloWorld2 extends drcl.comp.Component implements drcl.comp.RestartableComponent
{
	double period = 0.5; // second
	Port port = addPort("port", false);

	/** Constructor. */
	public HelloWorld2()
	{ super(); }

	/** Constructor. */
	public HelloWorld2(String id_)
	{ super(id_); }

	public void reset()
	{
		super.reset(); // Let super class reset its fields.
	}

	public void duplicate(Object source_)
	{
		super.duplicate(source_); // Let super class copy its fields.
		period = ((HelloWorld2)source_).period;
	}

	public String info()
	{
		return "Period = " + period + "\n";
	}

	protected void process(Object data_, Port inPort_)
	{
		if (!isStopped()) {
			port.doLastSending("Hello World!\n");
			fork(port, "Hello World!", period);
		}
	}

	// Starts as an ActiveComponent.
	protected void _start()
	{
		port.doLastSending("Hello World!\n");
		fork(port, "Hello World!", period);
	}

	// Resumes this ActiveComponent.
	protected void _resume()
	{
		_start();
	}

	public void setPeriod(double period_)
	{
		period = period_;
	}

	public double getPeriod()
	{
		return period;
	}
}