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      1 // Copyright 2011 Google Inc. All Rights Reserved.
      2 
      3 package com.example.android.wifidirect;
      4 
      5 import android.app.IntentService;
      6 import android.content.ContentResolver;
      7 import android.content.Context;
      8 import android.content.Intent;
      9 import android.net.Uri;
     10 import android.util.Log;
     11 
     12 import java.io.FileNotFoundException;
     13 import java.io.IOException;
     14 import java.io.InputStream;
     15 import java.io.OutputStream;
     16 import java.net.InetSocketAddress;
     17 import java.net.Socket;
     18 
     19 /**
     20  * A service that process each file transfer request i.e Intent by opening a
     21  * socket connection with the WiFi Direct Group Owner and writing the file
     22  */
     23 public class FileTransferService extends IntentService {
     24 
     25     private static final int SOCKET_TIMEOUT = 5000;
     26     public static final String ACTION_SEND_FILE = "com.example.android.wifidirect.SEND_FILE";
     27     public static final String EXTRAS_FILE_PATH = "file_url";
     28     public static final String EXTRAS_GROUP_OWNER_ADDRESS = "go_host";
     29     public static final String EXTRAS_GROUP_OWNER_PORT = "go_port";
     30 
     31     public FileTransferService(String name) {
     32         super(name);
     33     }
     34 
     35     public FileTransferService() {
     36         super("FileTransferService");
     37     }
     38 
     39     /*
     40      * (non-Javadoc)
     41      * @see android.app.IntentService#onHandleIntent(android.content.Intent)
     42      */
     43     @Override
     44     protected void onHandleIntent(Intent intent) {
     45 
     46         Context context = getApplicationContext();
     47         if (intent.getAction().equals(ACTION_SEND_FILE)) {
     48             String fileUri = intent.getExtras().getString(EXTRAS_FILE_PATH);
     49             String host = intent.getExtras().getString(EXTRAS_GROUP_OWNER_ADDRESS);
     50             Socket socket = new Socket();
     51             int port = intent.getExtras().getInt(EXTRAS_GROUP_OWNER_PORT);
     52 
     53             try {
     54                 Log.d(WiFiDirectActivity.TAG, "Opening client socket - ");
     55                 socket.bind(null);
     56                 socket.connect((new InetSocketAddress(host, port)), SOCKET_TIMEOUT);
     57 
     58                 Log.d(WiFiDirectActivity.TAG, "Client socket - " + socket.isConnected());
     59                 OutputStream stream = socket.getOutputStream();
     60                 ContentResolver cr = context.getContentResolver();
     61                 InputStream is = null;
     62                 try {
     63                     is = cr.openInputStream(Uri.parse(fileUri));
     64                 } catch (FileNotFoundException e) {
     65                     Log.d(WiFiDirectActivity.TAG, e.toString());
     66                 }
     67                 DeviceDetailFragment.copyFile(is, stream);
     68                 Log.d(WiFiDirectActivity.TAG, "Client: Data written");
     69             } catch (IOException e) {
     70                 Log.e(WiFiDirectActivity.TAG, e.getMessage());
     71             } finally {
     72                 if (socket != null) {
     73                     if (socket.isConnected()) {
     74                         try {
     75                             socket.close();
     76                         } catch (IOException e) {
     77                             // Give up
     78                             e.printStackTrace();
     79                         }
     80                     }
     81                 }
     82             }
     83 
     84         }
     85     }
     86 }
     87