/* * Copyright (C) 2013 Samsung System LSI * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.bluetooth.map; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.Set; import javax.obex.ServerSession; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.app.Service; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothProfile; import android.bluetooth.BluetoothServerSocket; import android.bluetooth.IBluetooth; import android.bluetooth.IBluetoothMap; import android.bluetooth.BluetoothUuid; import android.bluetooth.BluetoothMap; import android.bluetooth.BluetoothSocket; import android.content.Context; import android.content.Intent; import android.os.Handler; import android.os.IBinder; import android.os.Message; import android.os.PowerManager; import android.os.ParcelUuid; import android.text.TextUtils; import android.util.Log; import android.provider.Settings; import android.content.IntentFilter; import android.content.BroadcastReceiver; import com.android.bluetooth.R; import com.android.bluetooth.Utils; import com.android.bluetooth.btservice.AdapterService; import com.android.bluetooth.btservice.ProfileService; import com.android.bluetooth.btservice.ProfileService.IProfileServiceBinder; public class BluetoothMapService extends ProfileService { private static final String TAG = "BluetoothMapService"; /** * To enable MAP DEBUG/VERBOSE logging - run below cmd in adb shell, and * restart com.android.bluetooth process. only enable DEBUG log: * "setprop log.tag.BluetoothMapService DEBUG"; enable both VERBOSE and * DEBUG log: "setprop log.tag.BluetoothMapService VERBOSE" */ public static final boolean DEBUG = true; public static final boolean VERBOSE = false; /** * Intent indicating incoming obex authentication request which is from * PCE(Carkit) */ public static final String AUTH_CHALL_ACTION = "com.android.bluetooth.map.authchall"; /** * Intent indicating timeout for user confirmation, which is sent to * BluetoothMapActivity */ public static final String USER_CONFIRM_TIMEOUT_ACTION = "com.android.bluetooth.map.userconfirmtimeout"; /** * Intent Extra name indicating session key which is sent from * BluetoothMapActivity */ public static final String EXTRA_SESSION_KEY = "com.android.bluetooth.map.sessionkey"; public static final String THIS_PACKAGE_NAME = "com.android.bluetooth"; public static final int MSG_SERVERSESSION_CLOSE = 5000; public static final int MSG_SESSION_ESTABLISHED = 5001; public static final int MSG_SESSION_DISCONNECTED = 5002; public static final int MSG_OBEX_AUTH_CHALL = 5003; public static final int MSG_ACQUIRE_WAKE_LOCK = 5004; public static final int MSG_RELEASE_WAKE_LOCK = 5005; private static final String BLUETOOTH_PERM = android.Manifest.permission.BLUETOOTH; private static final String BLUETOOTH_ADMIN_PERM = android.Manifest.permission.BLUETOOTH_ADMIN; private static final int START_LISTENER = 1; private static final int USER_TIMEOUT = 2; private static final int DISCONNECT_MAP = 3; private static final int RELEASE_WAKE_LOCK_DELAY = 10000; private PowerManager.WakeLock mWakeLock = null; private BluetoothAdapter mAdapter; private SocketAcceptThread mAcceptThread = null; private BluetoothMapAuthenticator mAuth = null; private BluetoothMapObexServer mMapServer; private ServerSession mServerSession = null; private BluetoothMnsObexClient mBluetoothMnsObexClient = null; private BluetoothServerSocket mServerSocket = null; private BluetoothSocket mConnSocket = null; private BluetoothDevice mRemoteDevice = null; private static String sRemoteDeviceName = null; private volatile boolean mInterrupted; private int mState; private boolean isWaitingAuthorization = false; // package and class name to which we send intent to check message access access permission private static final String ACCESS_AUTHORITY_PACKAGE = "com.android.settings"; private static final String ACCESS_AUTHORITY_CLASS = "com.android.settings.bluetooth.BluetoothPermissionRequest"; private static final ParcelUuid[] MAP_UUIDS = { BluetoothUuid.MAP, BluetoothUuid.MNS, }; public BluetoothMapService() { mState = BluetoothMap.STATE_DISCONNECTED; } private void startRfcommSocketListener() { if (DEBUG) Log.d(TAG, "Map Service startRfcommSocketListener"); if (mAcceptThread == null) { mAcceptThread = new SocketAcceptThread(); mAcceptThread.setName("BluetoothMapAcceptThread"); mAcceptThread.start(); } } private final boolean initSocket() { if (DEBUG) Log.d(TAG, "Map Service initSocket"); boolean initSocketOK = false; final int CREATE_RETRY_TIME = 10; // It's possible that create will fail in some cases. retry for 10 times for (int i = 0; (i < CREATE_RETRY_TIME) && !mInterrupted; i++) { initSocketOK = true; try { // It is mandatory for MSE to support initiation of bonding and // encryption. mServerSocket = mAdapter.listenUsingEncryptedRfcommWithServiceRecord ("MAP SMS/MMS", BluetoothUuid.MAS.getUuid()); } catch (IOException e) { Log.e(TAG, "Error create RfcommServerSocket " + e.toString()); initSocketOK = false; } if (!initSocketOK) { // Need to break out of this loop if BT is being turned off. if (mAdapter == null) break; int state = mAdapter.getState(); if ((state != BluetoothAdapter.STATE_TURNING_ON) && (state != BluetoothAdapter.STATE_ON)) { Log.w(TAG, "initServerSocket failed as BT is (being) turned off"); break; } try { if (VERBOSE) Log.v(TAG, "wait 300 ms"); Thread.sleep(300); } catch (InterruptedException e) { Log.e(TAG, "socketAcceptThread thread was interrupted (3)"); } } else { break; } } if (mInterrupted) { initSocketOK = false; // close server socket to avoid resource leakage closeServerSocket(); } if (initSocketOK) { if (VERBOSE) Log.v(TAG, "Succeed to create listening socket "); } else { Log.e(TAG, "Error to create listening socket after " + CREATE_RETRY_TIME + " try"); } return initSocketOK; } private final synchronized void closeServerSocket() { // exit SocketAcceptThread early if (mServerSocket != null) { try { // this will cause mServerSocket.accept() return early with IOException mServerSocket.close(); mServerSocket = null; } catch (IOException ex) { Log.e(TAG, "Close Server Socket error: " + ex); } } } private final synchronized void closeConnectionSocket() { if (mConnSocket != null) { try { mConnSocket.close(); mConnSocket = null; } catch (IOException e) { Log.e(TAG, "Close Connection Socket error: " + e.toString()); } } } private final void closeService() { if (DEBUG) Log.d(TAG, "MAP Service closeService in"); // exit initSocket early mInterrupted = true; closeServerSocket(); if (mAcceptThread != null) { try { mAcceptThread.shutdown(); mAcceptThread.join(); mAcceptThread = null; } catch (InterruptedException ex) { Log.w(TAG, "mAcceptThread close error" + ex); } } if (mWakeLock != null) { mWakeLock.release(); mWakeLock = null; } if (mServerSession != null) { mServerSession.close(); mServerSession = null; } if (mBluetoothMnsObexClient != null) { mBluetoothMnsObexClient.shutdown(); mBluetoothMnsObexClient = null; } closeConnectionSocket(); if (mSessionStatusHandler != null) { mSessionStatusHandler.removeCallbacksAndMessages(null); } isWaitingAuthorization = false; if (VERBOSE) Log.v(TAG, "MAP Service closeService out"); } private final void startObexServerSession() throws IOException { if (DEBUG) Log.d(TAG, "Map Service startObexServerSession"); // acquire the wakeLock before start Obex transaction thread if (mWakeLock == null) { PowerManager pm = (PowerManager)getSystemService(Context.POWER_SERVICE); mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "StartingObexMapTransaction"); mWakeLock.setReferenceCounted(false); mWakeLock.acquire(); } mBluetoothMnsObexClient = new BluetoothMnsObexClient(this, mRemoteDevice, mSessionStatusHandler); mMapServer = new BluetoothMapObexServer(mSessionStatusHandler, this, mBluetoothMnsObexClient); synchronized (this) { // We need to get authentication now that obex server is up mAuth = new BluetoothMapAuthenticator(mSessionStatusHandler); mAuth.setChallenged(false); mAuth.setCancelled(false); } // setup RFCOMM transport BluetoothMapRfcommTransport transport = new BluetoothMapRfcommTransport(mConnSocket); mServerSession = new ServerSession(transport, mMapServer, mAuth); setState(BluetoothMap.STATE_CONNECTED); mSessionStatusHandler.removeMessages(MSG_RELEASE_WAKE_LOCK); mSessionStatusHandler.sendMessageDelayed(mSessionStatusHandler .obtainMessage(MSG_RELEASE_WAKE_LOCK), RELEASE_WAKE_LOCK_DELAY); if (VERBOSE) { Log.v(TAG, "startObexServerSession() success!"); } } private void stopObexServerSession() { if (DEBUG) Log.d(TAG, "MAP Service stopObexServerSession"); mSessionStatusHandler.removeMessages(MSG_ACQUIRE_WAKE_LOCK); mSessionStatusHandler.removeMessages(MSG_RELEASE_WAKE_LOCK); // Release the wake lock if obex transaction is over if (mWakeLock != null) { mWakeLock.release(); mWakeLock = null; } if (mServerSession != null) { mServerSession.close(); mServerSession = null; } mAcceptThread = null; if(mBluetoothMnsObexClient != null) { mBluetoothMnsObexClient.shutdown(); mBluetoothMnsObexClient = null; } closeConnectionSocket(); // Last obex transaction is finished, we start to listen for incoming // connection again if (mAdapter.isEnabled()) { startRfcommSocketListener(); } setState(BluetoothMap.STATE_DISCONNECTED); } /** * A thread that runs in the background waiting for remote rfcomm * connect.Once a remote socket connected, this thread shall be * shutdown.When the remote disconnect,this thread shall run again waiting * for next request. */ private class SocketAcceptThread extends Thread { private boolean stopped = false; @Override public void run() { BluetoothServerSocket serverSocket; if (mServerSocket == null) { if (!initSocket()) { return; } } while (!stopped) { try { if (DEBUG) Log.d(TAG, "Accepting socket connection..."); serverSocket = mServerSocket; if(serverSocket == null) { Log.w(TAG, "mServerSocket is null"); break; } mConnSocket = serverSocket.accept(); if (DEBUG) Log.d(TAG, "Accepted socket connection..."); synchronized (BluetoothMapService.this) { if (mConnSocket == null) { Log.w(TAG, "mConnSocket is null"); break; } mRemoteDevice = mConnSocket.getRemoteDevice(); } if (mRemoteDevice == null) { Log.i(TAG, "getRemoteDevice() = null"); break; } sRemoteDeviceName = mRemoteDevice.getName(); // In case getRemoteName failed and return null if (TextUtils.isEmpty(sRemoteDeviceName)) { sRemoteDeviceName = getString(R.string.defaultname); } boolean trust = mRemoteDevice.getTrustState(); if (DEBUG) Log.d(TAG, "GetTrustState() = " + trust); if (trust) { try { if (DEBUG) Log.d(TAG, "incoming connection accepted from: " + sRemoteDeviceName + " automatically as trusted device"); startObexServerSession(); } catch (IOException ex) { Log.e(TAG, "catch exception starting obex server session" + ex.toString()); } } else { Intent intent = new Intent(BluetoothDevice.ACTION_CONNECTION_ACCESS_REQUEST); intent.setClassName(ACCESS_AUTHORITY_PACKAGE, ACCESS_AUTHORITY_CLASS); intent.putExtra(BluetoothDevice.EXTRA_ACCESS_REQUEST_TYPE, BluetoothDevice.REQUEST_TYPE_MESSAGE_ACCESS); intent.putExtra(BluetoothDevice.EXTRA_DEVICE, mRemoteDevice); isWaitingAuthorization = true; sendBroadcast(intent, BLUETOOTH_ADMIN_PERM); if (DEBUG) Log.d(TAG, "waiting for authorization for connection from: " + sRemoteDeviceName); } stopped = true; // job done ,close this thread; } catch (IOException ex) { stopped=true; if (VERBOSE) Log.v(TAG, "Accept exception: " + ex.toString()); } } } void shutdown() { stopped = true; interrupt(); } } private final Handler mSessionStatusHandler = new Handler() { @Override public void handleMessage(Message msg) { if (VERBOSE) Log.v(TAG, "Handler(): got msg=" + msg.what); switch (msg.what) { case START_LISTENER: if (mAdapter.isEnabled()) { startRfcommSocketListener(); } break; case USER_TIMEOUT: Intent intent = new Intent(BluetoothDevice.ACTION_CONNECTION_ACCESS_CANCEL); intent.setClassName(ACCESS_AUTHORITY_PACKAGE, ACCESS_AUTHORITY_CLASS); intent.putExtra(BluetoothDevice.EXTRA_ACCESS_REQUEST_TYPE, BluetoothDevice.REQUEST_TYPE_MESSAGE_ACCESS); sendBroadcast(intent); isWaitingAuthorization = false; stopObexServerSession(); break; case MSG_SERVERSESSION_CLOSE: stopObexServerSession(); break; case MSG_SESSION_ESTABLISHED: break; case MSG_SESSION_DISCONNECTED: // handled elsewhere break; case DISCONNECT_MAP: disconnectMap((BluetoothDevice)msg.obj); break; case MSG_ACQUIRE_WAKE_LOCK: if (mWakeLock == null) { PowerManager pm = (PowerManager)getSystemService( Context.POWER_SERVICE); mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "StartingObexMapTransaction"); mWakeLock.setReferenceCounted(false); mWakeLock.acquire(); Log.w(TAG, "Acquire Wake Lock"); } mSessionStatusHandler.removeMessages(MSG_RELEASE_WAKE_LOCK); mSessionStatusHandler.sendMessageDelayed(mSessionStatusHandler .obtainMessage(MSG_RELEASE_WAKE_LOCK), RELEASE_WAKE_LOCK_DELAY); break; case MSG_RELEASE_WAKE_LOCK: if (mWakeLock != null) { mWakeLock.release(); mWakeLock = null; Log.w(TAG, "Release Wake Lock"); } break; default: break; } } }; public int getState() { return mState; } public BluetoothDevice getRemoteDevice() { return mRemoteDevice; } private void setState(int state) { setState(state, BluetoothMap.RESULT_SUCCESS); } private synchronized void setState(int state, int result) { if (state != mState) { if (DEBUG) Log.d(TAG, "Map state " + mState + " -> " + state + ", result = " + result); int prevState = mState; mState = state; Intent intent = new Intent(BluetoothMap.ACTION_CONNECTION_STATE_CHANGED); intent.putExtra(BluetoothProfile.EXTRA_PREVIOUS_STATE, prevState); intent.putExtra(BluetoothProfile.EXTRA_STATE, mState); intent.putExtra(BluetoothDevice.EXTRA_DEVICE, mRemoteDevice); sendBroadcast(intent, BLUETOOTH_PERM); AdapterService s = AdapterService.getAdapterService(); if (s != null) { s.onProfileConnectionStateChanged(mRemoteDevice, BluetoothProfile.MAP, mState, prevState); } } } public static String getRemoteDeviceName() { return sRemoteDeviceName; } public boolean disconnect(BluetoothDevice device) { mSessionStatusHandler.sendMessage(mSessionStatusHandler.obtainMessage(DISCONNECT_MAP, 0, 0, device)); return true; } public boolean disconnectMap(BluetoothDevice device) { boolean result = false; if (DEBUG) Log.d(TAG, "disconnectMap"); if (getRemoteDevice().equals(device)) { switch (mState) { case BluetoothMap.STATE_CONNECTED: if (mServerSession != null) { mServerSession.close(); mServerSession = null; } if(mBluetoothMnsObexClient != null) { mBluetoothMnsObexClient.shutdown(); mBluetoothMnsObexClient = null; } closeConnectionSocket(); setState(BluetoothMap.STATE_DISCONNECTED, BluetoothMap.RESULT_CANCELED); result = true; break; default: break; } } return result; } public List getConnectedDevices() { List devices = new ArrayList(); synchronized(this) { if (mState == BluetoothMap.STATE_CONNECTED && mRemoteDevice != null) { devices.add(mRemoteDevice); } } return devices; } public List getDevicesMatchingConnectionStates(int[] states) { List deviceList = new ArrayList(); Set bondedDevices = mAdapter.getBondedDevices(); int connectionState; synchronized (this) { for (BluetoothDevice device : bondedDevices) { ParcelUuid[] featureUuids = device.getUuids(); if (!BluetoothUuid.containsAnyUuid(featureUuids, MAP_UUIDS)) { continue; } connectionState = getConnectionState(device); for(int i = 0; i < states.length; i++) { if (connectionState == states[i]) { deviceList.add(device); } } } } return deviceList; } public int getConnectionState(BluetoothDevice device) { synchronized(this) { if (getState() == BluetoothMap.STATE_CONNECTED && getRemoteDevice().equals(device)) { return BluetoothProfile.STATE_CONNECTED; } else { return BluetoothProfile.STATE_DISCONNECTED; } } } public boolean setPriority(BluetoothDevice device, int priority) { Settings.Global.putInt(getContentResolver(), Settings.Global.getBluetoothMapPriorityKey(device.getAddress()), priority); if (DEBUG) Log.d(TAG, "Saved priority " + device + " = " + priority); return true; } public int getPriority(BluetoothDevice device) { int priority = Settings.Global.getInt(getContentResolver(), Settings.Global.getBluetoothMapPriorityKey(device.getAddress()), BluetoothProfile.PRIORITY_UNDEFINED); return priority; } @Override protected IProfileServiceBinder initBinder() { return new BluetoothMapBinder(this); } @Override protected boolean start() { if (DEBUG) Log.d(TAG, "start()"); IntentFilter filter = new IntentFilter(); filter.addAction(BluetoothDevice.ACTION_CONNECTION_ACCESS_REPLY); filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED); try { registerReceiver(mMapReceiver, filter); } catch (Exception e) { Log.w(TAG,"Unable to register map receiver",e); } mInterrupted = false; mAdapter = BluetoothAdapter.getDefaultAdapter(); // start RFCOMM listener mSessionStatusHandler.sendMessage(mSessionStatusHandler .obtainMessage(START_LISTENER)); return true; } @Override protected boolean stop() { if (DEBUG) Log.d(TAG, "stop()"); try { unregisterReceiver(mMapReceiver); } catch (Exception e) { Log.w(TAG,"Unable to unregister map receiver",e); } setState(BluetoothMap.STATE_DISCONNECTED, BluetoothMap.RESULT_CANCELED); closeService(); return true; } public boolean cleanup() { if (DEBUG) Log.d(TAG, "cleanup()"); setState(BluetoothMap.STATE_DISCONNECTED, BluetoothMap.RESULT_CANCELED); closeService(); return true; } private MapBroadcastReceiver mMapReceiver = new MapBroadcastReceiver(); private class MapBroadcastReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { if (DEBUG) Log.d(TAG, "onReceive"); String action = intent.getAction(); if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) { int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR); if (state == BluetoothAdapter.STATE_TURNING_OFF) { if (DEBUG) Log.d(TAG, "STATE_TURNING_OFF"); // Release all resources closeService(); } else if (state == BluetoothAdapter.STATE_ON) { if (DEBUG) Log.d(TAG, "STATE_ON"); mInterrupted = false; // start RFCOMM listener mSessionStatusHandler.sendMessage(mSessionStatusHandler .obtainMessage(START_LISTENER)); } } else if (action.equals(BluetoothDevice.ACTION_CONNECTION_ACCESS_REPLY)) { int requestType = intent.getIntExtra(BluetoothDevice.EXTRA_ACCESS_REQUEST_TYPE, BluetoothDevice.REQUEST_TYPE_PHONEBOOK_ACCESS); if (DEBUG) Log.d(TAG, "Received ACTION_CONNECTION_ACCESS_REPLY:" + requestType + ":" + isWaitingAuthorization); if ((!isWaitingAuthorization) || (requestType != BluetoothDevice.REQUEST_TYPE_MESSAGE_ACCESS)) { // this reply is not for us return; } isWaitingAuthorization = false; if (intent.getIntExtra(BluetoothDevice.EXTRA_CONNECTION_ACCESS_RESULT, BluetoothDevice.CONNECTION_ACCESS_NO) == BluetoothDevice.CONNECTION_ACCESS_YES) { //bluetooth connection accepted by user if (intent.getBooleanExtra(BluetoothDevice.EXTRA_ALWAYS_ALLOWED, false)) { boolean result = mRemoteDevice.setTrust(true); if (DEBUG) Log.d(TAG, "setTrust() result=" + result); } try { if (mConnSocket != null) { // start obex server and rfcomm connection startObexServerSession(); } else { stopObexServerSession(); } } catch (IOException ex) { Log.e(TAG, "Caught the error: " + ex.toString()); } } else { stopObexServerSession(); } } } }; //Binder object: Must be static class or memory leak may occur /** * This class implements the IBluetoothMap interface - or actually it validates the * preconditions for calling the actual functionality in the MapService, and calls it. */ private static class BluetoothMapBinder extends IBluetoothMap.Stub implements IProfileServiceBinder { private BluetoothMapService mService; private BluetoothMapService getService() { if (!Utils.checkCaller()) { Log.w(TAG,"MAP call not allowed for non-active user"); return null; } if (mService != null && mService.isAvailable()) { mService.enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission"); return mService; } return null; } BluetoothMapBinder(BluetoothMapService service) { if (VERBOSE) Log.v(TAG, "BluetoothMapBinder()"); mService = service; } public boolean cleanup() { mService = null; return true; } public int getState() { if (VERBOSE) Log.v(TAG, "getState()"); BluetoothMapService service = getService(); if (service == null) return BluetoothMap.STATE_DISCONNECTED; return getService().getState(); } public BluetoothDevice getClient() { if (VERBOSE) Log.v(TAG, "getClient()"); BluetoothMapService service = getService(); if (service == null) return null; Log.v(TAG, "getClient() - returning " + service.getRemoteDevice()); return service.getRemoteDevice(); } public boolean isConnected(BluetoothDevice device) { if (VERBOSE) Log.v(TAG, "isConnected()"); BluetoothMapService service = getService(); if (service == null) return false; return service.getState() == BluetoothMap.STATE_CONNECTED && service.getRemoteDevice().equals(device); } public boolean connect(BluetoothDevice device) { if (VERBOSE) Log.v(TAG, "connect()"); BluetoothMapService service = getService(); if (service == null) return false; return false; } public boolean disconnect(BluetoothDevice device) { if (VERBOSE) Log.v(TAG, "disconnect()"); BluetoothMapService service = getService(); if (service == null) return false; return service.disconnect(device); } public List getConnectedDevices() { if (VERBOSE) Log.v(TAG, "getConnectedDevices()"); BluetoothMapService service = getService(); if (service == null) return new ArrayList(0); return service.getConnectedDevices(); } public List getDevicesMatchingConnectionStates(int[] states) { if (VERBOSE) Log.v(TAG, "getDevicesMatchingConnectionStates()"); BluetoothMapService service = getService(); if (service == null) return new ArrayList(0); return service.getDevicesMatchingConnectionStates(states); } public int getConnectionState(BluetoothDevice device) { if (VERBOSE) Log.v(TAG, "getConnectionState()"); BluetoothMapService service = getService(); if (service == null) return BluetoothProfile.STATE_DISCONNECTED; return service.getConnectionState(device); } public boolean setPriority(BluetoothDevice device, int priority) { BluetoothMapService service = getService(); if (service == null) return false; return service.setPriority(device, priority); } public int getPriority(BluetoothDevice device) { BluetoothMapService service = getService(); if (service == null) return BluetoothProfile.PRIORITY_UNDEFINED; return service.getPriority(device); } }; }