整个项目运行的起点在com.aelitis.azureus.ui.Main这个类中,它只有一个main主方法,运用Java的反射机制来调用真正的起始点类org.gudy.azureus2.ui.swt.Main的实例对象。
代码如下:
- final Class startupClass = Class.forName("org.gudy.azureus2.ui.swt.Main");
- final Constructor constructor = startupClass.getConstructor(new Class[] {
- String[].class
- });
- constructor.newInstance(new Object[] {
- args
- });
而在org.gudy.azureus2.ui.swt.Main这个类中有一个成员变量
- StartServer startServer
它是一个监听服务器,对本地的6880端口进行监听,监听的对象是torrent种子文件的URL地址,在它的构造函数中有如下语句:
- socket = new ServerSocket(6880, 50, InetAddress.getByName("127.0.0.1")); //种子文件监听服务器
- state = STATE_LISTENING; //服务器状态设置为“监听中”
对此我们来做个小实验,通过tcp连接到Azureus的种子文件监听服务器上,向它传递待下载的种子文件列表,从而让Azureus去下载。
- package com.vista.test;
- import java.io.IOException;
- import java.io.OutputStreamWriter;
- import java.io.PrintWriter;
- import java.net.Socket;
- import java.net.UnknownHostException;
- /**
- *
- * @author phinecos
- * @since 2009-5-6
- *
- */
- public class MyClass
- {
- private String[] files = null;
- public MyClass(String[] files)
- {
- this.files = files;
- }
- @Override
- public String toString()
- {
- StringBuilder sb = new StringBuilder();
- for (String file: files)
- {
- sb.append(file);
- }
- return sb.toString();
- }
- public void sendMessage()
- {
- Socket socket = null;
- PrintWriter pw = null;
- String msg = "StartSocket: passing startup args to already-running Azureus java process listening on [127.0.0.1: 6880]";
- String IpAddr = "127.0.0.1";
- int port = 6880;
- final String ACCESS_STRING = "Azureus Start Server Access";
- try
- {
- socket = new Socket(IpAddr,port);
- pw = new PrintWriter(new OutputStreamWriter(socket.getOutputStream(),"UTF8"));
- StringBuffer buffer = new StringBuffer(ACCESS_STRING + ";args;");
- for (int i = 0; i < files.length; ++i)
- {
- String file = files[i].replaceAll("&","&&").replaceAll(";","&;");//字符转义
- buffer.append(file);
- buffer.append(';');
- }
- pw.println(buffer.toString());
- pw.flush();
- }
- catch (UnknownHostException e)
- {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- finally
- {
- try
- {
- if (pw != null)
- pw.close();
- }
- catch(Exception e){}
- try
- {
- if (socket != null)
- socket.close();
- }
- catch (IOException e) {}
- }
- }
- }
- package com.vista.test;
- import java.lang.reflect.Constructor;
- /**
- *
- * @author phinecos
- * @since 2009-5-6
- *
- */
- public class Main
- {
- /**
- * @param args
- * @throws ClassNotFoundException
- */
- public static void main(String[] args)
- {
- try
- {
- final Class myClass = Class.forName("com.vista.test.MyClass");
- final Constructor myConstructor = myClass.getConstructor(new Class[]{String[].class});
- String[] torrents = {"c:\\1001.torrent", "c:\\1002.torrent"};//种子文件列表
- MyClass c1 = (MyClass)myConstructor.newInstance(new Object[]{torrents});
- System.out.println(c1.toString());
- c1.sendMessage();
- }
- catch (Exception e)
- {
- e.printStackTrace();
- }
- }
- }
先启动Azureus,再使用此用例进行测试,结果如下图,这表明这两个种子文件都被解析并开始下载了。