package com.ixhong.base.thread.base;

public class ProducerConsumer {
   public static void main(String[] args) {
      SyncStack ss = new SyncStack();
      
      new Thread(new Producer(ss, "p1")).start();
      new Thread(new Consumer(ss, "c1")).start();
      new Thread(new Producer(ss, "p2")).start();
      new Thread(new Consumer(ss, "c2")).start();
   }
}

class WoTou {
   private int id;
   
   public WoTou(int id) {
      this.id = id;
   }
   
   public int getId() {
      return id;
   }
   
   public String toString() {
      return "WT" + getId();
   }
}

class SyncStack {
   private int index = 0;
   private WoTou[] arrWT = new WoTou[6];
   
   public synchronized void push(WoTou wt) {
      while (index == arrWT.length) {
         try {
            this.wait();
         } catch (InterruptedException e) {}
      }
      this.notifyAll();
      arrWT[index++] = wt;
   }
   
   public synchronized WoTou pop() {
      while (index == 0) {
         try {
            this.wait();
         } catch (InterruptedException e) {}
      }
      this.notifyAll();
      return arrWT[--index];
   }
}

class Producer implements Runnable {
   private SyncStack ss = null;
   private String name;
   
   public Producer(SyncStack ss, String name) {
      this.ss = ss;
      this.name = name;
   }
   
   public String getName() {
      return name;
   }
   
   public void run() {
      for (int i = 0; i < 60; i++) {
         WoTou wt = new WoTou(i);
         ss.push(wt);
         System.out.println(getName() + "生产" + wt);
         try {
            Thread.sleep((long) (Math.random() * 100));
         } catch (InterruptedException e) {}
      }
   }
}

class Consumer implements Runnable {
    private SyncStack ss = null;
    private String name;
   
   public Consumer(SyncStack ss, String name) {
      this.ss = ss;
      this.name = name;
   }
   
   public String getName() {
      return name;
   }
   
   public void run() {
      for (int i = 0; i < 60; i++) {
         WoTou wt = ss.pop();
         System.out.println(getName() + "消费" + wt);
         try {
            Thread.sleep((long) (Math.random() * 400));
         } catch (InterruptedException e) {}
      }
   }
}