downloader made background thread

src/eu/alefzero/owncloud/FileDownloader.java

@@ -10,49 +10,85 @@ import android.app.PendingIntent;
 import android.app.Service;
 import android.content.Intent;
 import android.net.Uri;
+import android.os.Binder;
 import android.os.Environment;
+import android.os.Handler;
+import android.os.HandlerThread;
 import android.os.IBinder;
+import android.os.Looper;
+import android.os.Message;
+import android.os.Process;
 import android.util.Log;
 import eu.alefzero.owncloud.authenticator.AccountAuthenticator;
 import eu.alefzero.owncloud.ui.activity.FileDisplayActivity;
 import eu.alefzero.webdav.WebdavClient;
 
 public class FileDownloader extends Service {
-  static final String EXTRA_ACCOUNT = "ACCOUNT";
-  static final String EXTRA_FILE_PATH = "FILE_PATH";
-  static final String TAG = "OC_FileDownloader";
+  public static final String EXTRA_ACCOUNT = "ACCOUNT";
+  public static final String EXTRA_FILE_PATH = "FILE_PATH";
+  private static final String TAG = "OC_FileDownloader";
   
-  NotificationManager nm;
+  private NotificationManager nm;
+  private Looper mServiceLooper;
+  private ServiceHandler mServiceHandler;
+  private Account mAccount;
+  private String mFilePath;
+  
+  private final class ServiceHandler extends Handler {
+    public ServiceHandler(Looper looper) {
+      super(looper);
+    }
+    @Override
+    public void handleMessage(Message msg) {
+      downloadFile();
+      stopSelf(msg.arg1);
+    }
+  }
+  
+  @Override
+  public void onCreate() {
+    super.onCreate();
+    nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
+    HandlerThread thread = new HandlerThread("FileDownladerThread", Process.THREAD_PRIORITY_BACKGROUND);
+    thread.start();
+    mServiceLooper = thread.getLooper();
+    mServiceHandler = new ServiceHandler(mServiceLooper); 
+  }
   
   @Override
   public IBinder onBind(Intent arg0) {
     return null;
   }
-  
+
   @Override
   public int onStartCommand(Intent intent, int flags, int startId) {
     if (!intent.hasExtra(EXTRA_ACCOUNT) && !intent.hasExtra(EXTRA_FILE_PATH)) {
       Log.e(TAG, "Not enough information provided in intent");
-      return START_NOT_STICKY;
+      return START_STICKY;
     }
+    mAccount = intent.getParcelableExtra(EXTRA_ACCOUNT);
+    mFilePath = intent.getStringExtra(EXTRA_FILE_PATH);
+    Message msg = mServiceHandler.obtainMessage();
+    msg.arg1 = startId;
+    mServiceHandler.sendMessage(msg);
     
-    nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
     
-    Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
-    String file_path = intent.getStringExtra(EXTRA_FILE_PATH);
+    return START_NOT_STICKY;
+  }
+  
+  void downloadFile() {
     AccountManager am = (AccountManager)getSystemService(ACCOUNT_SERVICE);
-    Uri oc_url = Uri.parse(am.getUserData(account, AccountAuthenticator.KEY_OC_URL));
+    Uri oc_url = Uri.parse(am.getUserData(mAccount, AccountAuthenticator.KEY_OC_URL));
 
     WebdavClient wdc = new WebdavClient(oc_url);
     
-    String username = account.name.split("@")[0];
+    String username = mAccount.name.split("@")[0];
     String password = "";
     try {
-      password = am.blockingGetAuthToken(account, AccountAuthenticator.AUTH_TOKEN_TYPE, true);
+      password = am.blockingGetAuthToken(mAccount, AccountAuthenticator.AUTH_TOKEN_TYPE, true);
     } catch (Exception e) {
       // TODO Auto-generated catch block
       e.printStackTrace();
-      return START_NOT_STICKY;
     }
     
     wdc.setCredentials(username, password);
@@ -60,18 +96,16 @@ public class FileDownloader extends Service {
 
     Notification n = new Notification(R.drawable.icon, "Downloading file", System.currentTimeMillis());
     PendingIntent pi = PendingIntent.getActivity(this, 1, new Intent(this, FileDisplayActivity.class), 0);
-    n.setLatestEventInfo(this, "A", "B", pi);
+    n.setLatestEventInfo(this, "Downloading file", "Downloading file " + mFilePath, pi);
     nm.notify(1, n);
 
     File sdCard = Environment.getExternalStorageDirectory();
     File dir = new File (sdCard.getAbsolutePath() + "/owncloud");
     dir.mkdirs();
-    File file = new File(dir, file_path.replace('/', '.'));
-    
-    wdc.downloadFile(file_path, file);
+    File file = new File(dir, mFilePath.replace('/', '.'));
     
-    return START_NOT_STICKY;
+    wdc.downloadFile(mFilePath, file);
+    nm.cancel(1);
   }
   
-  
 }