java:抽象类与模板方法模式详解

package com.demo;

abstract class Control {
	//创建模板方法
	abstract void initUart();
	abstract String getCommand();
	abstract void openLight();
	abstract void closeLight();
	//创建工作流程1
	public void work() {
		String cmd;
		initUart();
		cmd = getCommand(); //根据条件执行不同流程
		if (cmd == "open") {
			openLight();
		} else if (cmd == "close") {
			closeLight();
		}
	}
	//也可创建N个工作流程
}

class Arduino extends Control {
	//工作流程具体实现
	void initUart(){
		System.out.println("Arduino initUart");
	}
	String getCommand(){
		System.out.println("Arduino getCommand");
		return "open";
	}
	void openLight() {
		System.out.println("Arduino openLight");
	}
	void closeLight() {
		System.out.println("Arduino closeLight");
	}
}

class RaspberryPi extends Control {
	//工作流程具体实现
	void initUart(){
		System.out.println("raspberryPi initUart");
	}
	String getCommand(){
		System.out.println("RaspberryPi getCommand");
		return "close";
	}
	void openLight() {
		System.out.println("raspberryPi openLight");
	}
	void closeLight() {
		System.out.println("raspberryPi closeLight");
	}
}

public class Test {
	public static void main(String[] args) {
		//Arduino执行工作流程
		Arduino one = new Arduino();
		one.work();
		//RaspberryPi执行工作流程
		RaspberryPi two = new RaspberryPi();
		two.work();
	}
}