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private int NOTIFICATION_ID = 4711;
private NotificationManager mNM;
private String message;
private Notification notification;
private Server server;
private boolean isRunning = false;

@Override
public void onCreate() {
    mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
    showNotification();
}

private void showNotification() {
	updateNotifiction("");
  // startForeground(NOTIFICATION_ID, notification);
}

public void startServer(Handler handler, String documentRoot, int port) {
	try {
		isRunning = true;
		WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
		WifiInfo wifiInfo = wifiManager.getConnectionInfo();
		
		String ipAddress = intToIp(wifiInfo.getIpAddress());

		if( wifiInfo.getSupplicantState() != SupplicantState.COMPLETED) {
			new AlertDialog.Builder(this).setTitle("Error").setMessage("Please connect to a WIFI-network for starting the webserver.").setPositiveButton("OK", null).show();
			throw new Exception("Please connect to a WIFI-network.");
		}
        
	    server = new Server(handler, documentRoot, ipAddress, port, getApplicationContext());
	    server.start();
	    
        Intent i = new Intent(this, StartActivity.class);
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0, i, 0);

        updateNotifiction("Webserver is running on port " + ipAddress + ":" + port);
        
    	Message msg = new Message();
    	Bundle b = new Bundle();
    	b.putString("msg", "Webserver is running on port " + ipAddress + ":" + port);
    	msg.setData(b);
    	handler.sendMessage(msg);
    	
	} catch (Exception e) {
		isRunning = false;
		Log.e("Webserver", e.getMessage());
        updateNotifiction("Error: " + e.getMessage());
	}
	
}

public static String intToIp(int i) {
    return ((i       ) & 0xFF) + "." +
           ((i >>  8 ) & 0xFF) + "." +
           ((i >> 16 ) & 0xFF) + "." +
           ( i >> 24   & 0xFF);
}

public void stopServer() {
	if(null != server) {
		server.stopServer();
		server.interrupt();
		isRunning = false;
	}
}

public void updateNotificationold(String message) {
    CharSequence text = message;

    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, StartActivity.class), 0);
    if (notification == null) {
        notification = new Notification(R.mipmap.ic_launcher, text, System.currentTimeMillis());
       // notification.setLatestEventInfo(this, getString(R.string.app_name), text, contentIntent);

        mNM.notify(NOTIFICATION_ID, notification);
    } else {
    	// notification.setLatestEventInfo(this, getString(R.string.app_name), text, contentIntent);
    	mNM.notify(NOTIFICATION_ID, notification);
    }
	
}
public void updateNotifiction(String message) {
    // In this sample, we'll use the same text for the ticker and the expanded notification
    CharSequence text = message;

    // The PendingIntent to launch our activity if the user selects this notification
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, StartActivity.class), 0);

    // Set the info for the views that show in the notification panel.
    notification = new Notification.Builder(this)
		.setSmallIcon(R.mipmap.ic_launcher)  // the status icon
		.setTicker(text)  // the status text
		.setWhen(System.currentTimeMillis())  // the time stamp
		.setContentTitle("Noti")  // the label of the entry
		.setContentText(text)  // the contents of the entry
		.setContentIntent(contentIntent)  // The intent to send when the entry is clicked
		.build();

    // Send the notification.
    mNM.notify(NOTIFICATION_ID, notification);
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    Log.i("LocalService", "Received start id " + startId + ": " + intent);
    return START_NOT_STICKY;
}

@Override
public void onDestroy() {
    // Cancel the persistent notification.
    mNM.cancel(NOTIFICATION_ID);

    // Tell the user we stopped.
    Toast.makeText(this, "Service Stop", Toast.LENGTH_SHORT).show();
}

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

private final IBinder mBinder = new LocalBinder();

public class LocalBinder extends Binder {
	ServerService getService() {
        return ServerService.this;
    }
}

public boolean isRunning() {
	return isRunning;
}