package com.itcast.traffic;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public class LampController {

	private Lamp currentLamp;
	
	public LampController(){
		//刚开始让南向北的灯变绿
		currentLamp = Lamp.S2N;
		currentLamp.light();
		
		//每隔10秒将当前红灯变为绿灯
		ScheduledExecutorService timer = Executors.newScheduledThreadPool(1);
		timer.scheduleAtFixedRate(
					new Runnable(){
						@Override
						public void run() {
							System.out.println("灯变了");
							currentLamp = currentLamp.blackOut();
						}
					}, 
					10, 
					10, 
					TimeUnit.SECONDS);
	}
}