package org.wamblee.system;

import javax.sql.DataSource;

import org.wamblee.test.EventTracker;

public class Application extends AbstractComponent {
	private static RequiredInterface[] required() {
		return
		new RequiredInterface[] { 
    			new DefaultRequiredInterface("datasource", DataSource.class), 
    			new DefaultRequiredInterface("integer", Integer.class)
    	};
	}

	private EventTracker<String> _tracker;
	
	public Application() {
		super("application", new ProvidedInterface[0], required()); 
	}
	
	public Application(EventTracker<String> aTracker) { 
		this();
		_tracker = aTracker; 
	}

	@Override
	protected void doStart(String aContext) {
		track("start." + getName()); 
	}
	
	@Override
	protected void doStop() {
		track("stop." + getName());	
	}
	
	private void track(String aString) {
		if ( _tracker == null ) { 
			return; 
		}
		_tracker.eventOccurred(aString);
	}
}