pda/zhuike/.svn/pristine/a2/a2be1d1d048d6d7e67ca15b074cb33c5fe0964ff.svn-base

package com.novelbook.android.service;

import android.app.IntentService;
import android.content.Intent;
import android.util.Log;

public class ChapterDownloadSvrc extends IntentService {
    static final String TAG= "ChapterDownloadSvr";

    public ChapterDownloadSvrc() {
        super(TAG);
    }

    @Override
    public void onCreate() {
        super.onCreate();
        // 创建一个初始化线程,若干个买票线程
        // 要等初始化线程初始化好了之后,才能买票

        // 创建一个Ticket类的对象,分别传给不同的线程
        Ticket ticket = new Ticket();

        Thread t1 = new InitTicketThread("初始化线程", ticket);

        // 等初始化线程初始化好车票之后,才能开始卖票
        try {
            t1.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        // 创建四个买票线程,开始卖票
        Thread t2 = new SaleTicketThread("卖票线程1", ticket);
        Thread t3 = new SaleTicketThread("卖票线程2", ticket);
        Thread t4 = new SaleTicketThread("卖票线程3", ticket);
        Thread t5 = new SaleTicketThread("卖票线程4", ticket);

        Log.d(TAG,"---------------------------------------------------------------------");
        Log.d(TAG,"test service ChapterDownloadSvrc onCreate...");
    }

@Override
public void onStart(Intent intent, int startId) {
    super.onStart(intent, startId);
    Log.d(TAG,"test service onStart");
}

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.d(TAG,"test service onStartCommand");
        return super.onStartCommand(intent, flags, startId);

    }

    @Override
    public void onDestroy() {
        Log.d(TAG,"test service onDestroy");
        super.onDestroy();
    }

   /* @Override
    protected void onHandleIntent(Intent intent) {
        Log.d(TAG,"test service ChapterDownloadSvrc onHandleIntent...");
    }*/

     @Override
    protected void onHandleIntent( Intent intent) {
        Log.d(TAG,"test service onHandleIntent...");
         Log.d(TAG,"test service ChapterDownloadSvrc onHandleIntent...");
    }


    /**
     * 创建车票类、初始化车票
     * @author haokui
     *
     */
    class Ticket {
        // 初始化200张票的空间
        private String[] tickets = new String[200];

        private int index = tickets.length - 1; // 指向数组的索引(第一张票)

        public Ticket() {

        }

        public void initTicket() {
            // 初始化车票,给数组的元素赋值,考虑是否要同步
            for (int i = 0; i < tickets.length; i++) {
                tickets[i] = "第" + (i + 1) + "号车票";
            }
        }

        public synchronized String saleTicket() throws NoTicketException {
            // 判断是否有票,有票的情况下再卖票,没有票呢,抛出异常,
            // 考虑是否需要同步

            if (index >= 0) {
                String s = tickets[index];

                // 故意制造了一个问题,出现多个线程共卖一张车票
                try {
                    Thread.sleep(10);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                tickets[index] = null;
                index--;
                return s;
            } else {
                throw new NoTicketException("没有车票了");
            }

        }
    }
    /**
     * 创建卖票线程类
     * @author haokui
     *
     */
    class SaleTicketThread extends Thread {

        private Ticket ticket;

        public SaleTicketThread(String name, Ticket ticket) {
            super(name);
            this.ticket = ticket;
            this.start();
        }

        // 在run方法中卖车票
        public void run() {
            for (int i = 0; i < 60; i++) {
                try {
                    String s = ticket.saleTicket();
                    System.out.println(this.getName() + "卖票成功========>" + s);
                } catch (NoTicketException e) {
                    System.out.println(this.getName() + " 卖票时发生异常!");
                    e.printStackTrace();

                    // 如果发生异常,说明没有车票了,就中断循环,不要在卖票了
                    break;
                }
            }
        }
    }
    /**
     * 初始化车票的线程,负责初始化车票,也就是初始化Ticket类中的数组
     * @author haokui
     *
     */
    class InitTicketThread extends Thread {
        private Ticket ticket;
        public InitTicketThread(String name, Ticket ticket) {
            super(name);
            this.ticket = ticket;
            this.start();
        }

        // 在run方法中初始化车票
        public void run() {
            ticket.initTicket();
        }
    }
    /**
     * 自定义异常
     * @author haokui
     *
     */
    class NoTicketException extends Exception {
        public NoTicketException() {

        }

        public NoTicketException(String msg) {
            super(msg);
        }
    }

}