NetworkService.java :  » UnTagged » droiddraw » org » droiddraw » android » Android Open Source

package org.droiddraw.android;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Vector;

import android.app.Service;
import android.content.Intent;
import android.os.DeadObjectException;
import android.os.IBinder;
import android.os.RemoteException;

public class NetworkService extends Service implements Runnable {
  boolean running;
  int id;
  Thread listener;
  Vector<MessageListener> listeners;
  boolean accept;
  NetworkInterfaceImpl impl;
  
  public void onCreate() {
    this.listener = new Thread(this);
    this.listener.start();
    this.listeners = new Vector<MessageListener>();
    this.impl = new NetworkInterfaceImpl(this);
    super.onCreate();
  }
  
  public void onDestroy() {
    running = false;
    try {
      listener.join();
    }
    catch (InterruptedException ex) {}
  }

  public void run() {
    running = true;
    try {
      ServerSocket ss = new ServerSocket(7100);
      while (running) {
        try {
          Socket s = ss.accept();
          OutputStream os = s.getOutputStream();
          synchronized (this) {
            if (listeners != null) {
              for (MessageListener l : listeners) {
                try {
                  l.receivedRequest("Connect");
                  throw new IllegalStateException();
                }
                catch (Exception ex) {
                  ex.printStackTrace();
                }
                //System.out.println(l);
              }
              try {
                this.wait(2000);
              }
              catch (InterruptedException ex) {}
            }
          }
          if (accept) {
            os.write("Accepted.".getBytes());
            os.write("\r\n".getBytes());
            os.flush();
            InputStream is = s.getInputStream();
            BufferedReader in = new BufferedReader(new InputStreamReader(is));
            String layout = "";
            for (String l=in.readLine();l!=null;l=in.readLine()) {
              layout += l;
              layout += " ";
            }
            for (MessageListener l : listeners) {
              try {
                l.newLayout(layout);
              }
              catch (RemoteException ex) {
                ex.printStackTrace();
              }
            }
          }
          else {
            os.write(("Denied."+(listeners != null?listeners.size():-1)).getBytes());
            os.write("\r\n".getBytes());
            os.flush();
          }
          s.close();
        }
        catch (IOException ex) {
          ex.printStackTrace();
        }
      }
    }
    catch (IOException ex) {
      ex.printStackTrace();
    }
  }
  
  public void acknowledgeRequest(boolean accept) {
    this.accept = accept;
    synchronized (this) {
      this.notify();
    }
  }
  
  public void addMessageListener(MessageListener l) {
    listeners.add(l);
  }

  @Override
  public IBinder onBind(Intent intent) {
    return impl;
  }
}