Android Open Source - SmartTools Device Msg Channel

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License

The source code is released under:

GNU General Public License

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Java Source Code

package com.nj.simba.connect;
//from  w  w w  .ja  v  a 2 s.  c  o m
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.zip.GZIPInputStream;
import com.nj.simba.IDeviceInfo;
import com.nj.simba.base.IDeviceReqListener;
import com.nj.simba.utils.Config;


public class DeviceMsgChannel extends Thread {
    private BlockingQueue<DeviceMessage> mQueue = null;

  public DeviceMsgChannel() {
      mQueue = new ArrayBlockingQueue<DeviceMessage>(10);
  }
  
  @Override
    public void run() {
      while(true) {
          DeviceMessage msg = null;
            try {
                msg = mQueue.take();
                
                if ( msg.what == MSG_QUIT ) {
                    mQueue.clear();
                    break;
                }
                
                process(msg);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
      }
      
      System.out.println("msg looper quit!");
    }
  
  public void sendReqMsg(DeviceMessage msg) {
      try {
            mQueue.put(msg);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
  }

  private void process(DeviceMessage msg) {
      final IDeviceReqListener listener = msg.who;
      final int what = msg.what;
      
      System.out.println("process:" + msg.what);
      
        new Thread(new Runnable() {
            
            @Override
            public void run() {
                listener.onRequestBack(doProcess(what));
            }
        }).start();
    }

    protected Object doProcess(int what) {
        Object obj = null;
        
        switch(what) {
        case MSG_GET_APPS:
            obj = requestApps();
            break;
        case MSG_GET_PROPS:
            break;
        default:
            break;
        }
        
        return obj;
    }
  
  /**
   * talk with device get the list of packages on device
   * 
   * @return
   */
  public IDeviceInfo requestApps() {
      IDeviceInfo deviceInfo = null;

    try {
      Socket sokcet = new Socket("localhost", Config.HOST_PORT);
      boolean isConnected = sokcet.isConnected();
      System.out.println("isConnected:" + isConnected);

      OutputStream out = sokcet.getOutputStream();
      InputStream in = sokcet.getInputStream();
      DataOutputStream dos = new DataOutputStream(out);
      DataInputStream dis = new DataInputStream(in);

      /** 1??send CMD **/
      dos.writeUTF("CMD");

      /** 2??recv DAT **/
      GZIPInputStream gis = new GZIPInputStream(in);
      ByteArrayOutputStream baos = new ByteArrayOutputStream();
      byte[] data = new byte[1024];    
      int len = 0;
      
      while((len = gis.read(data) )!= -1) {
          baos.write(data, 0, len);
      }
      
      deviceInfo = IDeviceInfo.creator(baos.toByteArray());

      /** 3??send ACK **/
      dos.writeUTF("ACK");
      sokcet.close();
    } catch (Exception e) {
      e.printStackTrace();
    }

    return deviceInfo;
  }

  public static final int MSG_GET_APPS  = 0;
  public static final int MSG_GET_PROPS = 1;
  public static final int MSG_QUIT      = -1;
}

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