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/*需求：面向对象的分析与设计：取号机器：产生客户.每个客户都有号码，四个普通窗口的号码都共用一个号码计数器。所以得定义一个:号码计数器。共用一个数据增删，得加锁。各个窗口叫号， 窗口问取号机器。机器每次都得判断是哪个窗口叫号，先为这种类型的用户服务，没有再为普通用户服务。每个服务都得开辟一个线程。服务窗口。窗口有自己的用户类型，还有窗口编号。创建用户窗口前，我们先判断为哪种用户服务，再创建对应的窗口。窗口服务是不间断的，要用到while循环，我上面已经定义了窗口类型，所以可以用选择用户服务外面。用户产生，普通用户：快速用户：VIP=6：3：1用户是不间断按照比例产生的，我们可以用定时炸弹器，设好间隔时间，就可以产生带比例的用户类型。*/import java.util.ArrayList;import java.util.List;public class NumberManager {private int lastNumber = 1;//第一个用户为1.private List<Integer> queueNumber = new ArrayList<Integer>();//每份数据带一个容器public synchronized Integer generateNewManager(){queueNumber.add(lastNumber);//调用一次，增加一个用户数return lastNumber++;}public synchronized Integer fetchServiceNumber(){//操作同一份数据，得带锁Integer number = null;if(queueNumber.size()>0){//有用户，才服务啊number =  queueNumber.remove(0);//为最前面的一个服务}return number;}}public class NumberMachine {//三种不同类型的计算器private NumberManager commonManager = new NumberManager();private NumberManager expressManager = new NumberManager();private NumberManager vipManager = new NumberManager();public NumberManager getCommonManager() {return commonManager;}public NumberManager getExpressManager() {return expressManager;}public NumberManager getVipManager() {return vipManager;}//单例，只有一个机器产生各种号码。private NumberMachine(){}public static NumberMachine getInstance(){return instance;}private static NumberMachine instance = new NumberMachine();}import java.util.Random;import java.util.concurrent.Executors;public class ServiceWindow {private CustomerType type= CustomerType.COMMON;//枚举设置窗口类型public void setType(CustomerType type) {this.type = type;//类型有初始值为普通窗口，那我们要设置其他类型的窗口}private int windowId = 1;//每几号服务窗口，普通窗口有4个。public void setWindowId(int windowId) {this.windowId = windowId;}public void start(){Executors.newSingleThreadExecutor().execute(new Runnable(){public void run() {while(true){//循环，不停的服务switch(type){//哪种窗口对应哪种服务case COMMON:commonService();break;case EXPRESS:expressService();break;case VIP:vipService();break;}}}private void commonService() {//普通服务String windowName = "第"+windowId+"号"+type+"窗口";//向机器人要普通用户的号码。如果有，就开始服务Integer number = NumberMachine.getInstance().getCommonManager().fetchServiceNumber();System.out.println(windowName+"正在获取任务");if(number!=null){long beginTime = System.currentTimeMillis();//普通用户的服务时间是在最大值和最小值之间随机。int maxRand = Constants.MAX_SERVICE_TIME-Constants.MIN_SERVICE_TIME;long serveTime = new Random().nextInt(maxRand)+1+Constants.MIN_SERVICE_TIME;try {System.out.println(windowName+"为第"+number+"个"+"普通"+"服务中");Thread.sleep(serveTime);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}long endTime = System.currentTimeMillis();System.out.println(windowName+"为第"+number+"个"+"普通"+"完成服务,用时"+(endTime-beginTime)/1000+"秒");}else{System.out.println(windowName+"没有取到服务,休息1秒");try {Thread.sleep(1000);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}private void expressService() {String windowName = "第"+windowId+"号"+type+"窗口";Integer number = NumberMachine.getInstance().getExpressManager().fetchServiceNumber();System.out.println(windowName+"正在获取任务");if(number!=null){long beginTime = System.currentTimeMillis();//long maxRand = Constants.MAX_SERVICE_TIME-Constants.MIN_SERVICE_TIME;//long serveTime = new Random().nextInt(9000)+1+Constants.MIN_SERVICE_TIME;try {Thread.sleep(Constants.MIN_SERVICE_TIME);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}long endTime = System.currentTimeMillis();System.out.println(windowName+"为第"+number+"个"+type+"完成服务,用时"+(endTime-beginTime)/1000+"秒");}else{System.out.println(windowName+"没有取到服务");commonService();//没用快速用户，就为普通用户服务}}private void vipService() {String windowName = "第"+windowId+"号"+type+"窗口";Integer number = NumberMachine.getInstance().getVipManager().fetchServiceNumber();System.out.println(windowName+"正在获取任务");if(number!=null){long beginTime = System.currentTimeMillis();//long maxRand = Constants.MAX_SERVICE_TIME-Constants.MIN_SERVICE_TIME;//long serveTime = new Random().nextInt(9000)+1+Constants.MIN_SERVICE_TIME;try {Thread.sleep(Constants.MIN_SERVICE_TIME);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}long endTime = System.currentTimeMillis();System.out.println(windowName+"为第"+number+"个"+type+"完成服务,用时"+(endTime-beginTime)/1000+"秒");}else{System.out.println(windowName+"没有取到服务");commonService();}}});}}public enum CustomerType {//窗口的类型枚举COMMON,EXPRESS,VIP;public String toString(){//为了显示中文。switch(this){case COMMON:return "普通";case EXPRESS:return "快速";case VIP:return name();}return null;}}public class Constants {public static int MAX_SERVICE_TIME =10000;//最大值public static int MIN_SERVICE_TIME = 1000;public static int COMMON_CUSTOMER_INTERVAL_TIME=1;//按照比例产生用户的基数。}import java.util.concurrent.Executors;import java.util.concurrent.TimeUnit;public class MainClass {public static void main(String[] args){ for(int i= 1;i<5;i++){ServiceWindow commonWindow = new ServiceWindow();commonWindow.setWindowId(i);//产生四个不同的普通窗口commonWindow.start();//开启线程，start()方法里有线程}ServiceWindow vipWindow = new ServiceWindow();vipWindow.setType(CustomerType.VIP);//设置快速窗口属性vipWindow.start();//启动VIP服务ServiceWindow expressWindow = new ServiceWindow();expressWindow.setType(CustomerType.EXPRESS);expressWindow.start();//多线程的新方法。Executors.newScheduledThreadPool(1).scheduleAtFixedRate(new Runnable(){public void run() {// 调用方法，增加客户.Integer number = NumberMachine.getInstance().getCommonManager().generateNewManager();System.out.println(number+"号普通客户进来了等待服务");}}, 0, Constants.COMMON_CUSTOMER_INTERVAL_TIME, TimeUnit.SECONDS);Executors.newScheduledThreadPool(1).scheduleAtFixedRate(new Runnable(){public void run() {// TODO Auto-generated method stubInteger number = NumberMachine.getInstance().getVipManager().generateNewManager();System.out.println(number+"号vip客户进来了等待服务");}}, 0, Constants.COMMON_CUSTOMER_INTERVAL_TIME*6, TimeUnit.SECONDS);Executors.newScheduledThreadPool(1).scheduleAtFixedRate(new Runnable(){public void run() {// TODO Auto-generated method stubInteger number = NumberMachine.getInstance().getExpressManager().generateNewManager();System.out.println(number+"号快速客户进来了等待服务");}}, 0, Constants.COMMON_CUSTOMER_INTERVAL_TIME*2, TimeUnit.SECONDS);}}