1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.test.wakeuploop; 18 19 import android.app.AlarmManager; 20 import android.app.PendingIntent; 21 import android.content.BroadcastReceiver; 22 import android.content.Context; 23 import android.content.Intent; 24 import android.os.Environment; 25 import android.os.Message; 26 import android.os.Messenger; 27 import android.os.PowerManager; 28 import android.os.PowerManager.WakeLock; 29 import android.os.RemoteException; 30 import android.os.SystemClock; 31 import android.util.Log; 32 33 import java.io.File; 34 35 /** 36 * The receiver for the alarm we set 37 * 38 */ 39 public class WakeUpCall extends BroadcastReceiver { 40 private static final String LOG_TAG = WakeUpCall.class.getSimpleName(); 41 static final String WAKEUP_CALL = "android.test.wakeuploop.WAKEUP"; 42 static final String CANCEL = "CANCEL"; 43 44 @Override 45 public void onReceive(Context context, Intent intent) { 46 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 47 boolean cancel = intent.hasExtra(CANCEL); 48 if (!cancel) { 49 long maxLoop = intent.getLongExtra(WakeLoopService.MAX_LOOP, 0); 50 long wakeupInterval = intent.getLongExtra(WakeLoopService.WAKEUP_INTERNAL, 0); 51 long thisLoop = intent.getLongExtra(WakeLoopService.THIS_LOOP, -1); 52 Log.d(LOG_TAG, String.format("incoming: interval = %d, max loop = %d, this loop = %d", 53 wakeupInterval, maxLoop, thisLoop)); 54 if (thisLoop == -1) { 55 Log.e(LOG_TAG, "no valid loop count received, trying to stop service"); 56 stopService(intent); 57 return; 58 } 59 if (wakeupInterval == 0) { 60 Log.e(LOG_TAG, "no valid wakeup interval received, trying to stop service"); 61 stopService(intent); 62 return; 63 } 64 thisLoop++; 65 Log.d(LOG_TAG, String.format("WakeLoop - iteration %d of %d", thisLoop, maxLoop)); 66 if (thisLoop == maxLoop) { 67 // when maxLoop is 0, we loop forever, so not checking that case 68 // here 69 Log.d(LOG_TAG, "reached max loop count, stopping service"); 70 stopService(intent); 71 return; 72 } 73 screenOn(context); 74 FileUtil.get().writeDateToFile( 75 new File(Environment.getExternalStorageDirectory(), "wakeup-loop.txt")); 76 // calculate when device should be waken up 77 long atTime = SystemClock.elapsedRealtime() + wakeupInterval; 78 intent.putExtra(WakeLoopService.THIS_LOOP, thisLoop); 79 PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 80 PendingIntent.FLAG_UPDATE_CURRENT); 81 // set alarm, which will be delivered in form of the wakeupIntent 82 am.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, atTime, pi); 83 } else { 84 // cancel alarms 85 Log.d(LOG_TAG, "cancelling future alarms on request"); 86 am.cancel(PendingIntent.getBroadcast(context, 0, intent, 0)); 87 } 88 } 89 90 private void stopService(Intent i) { 91 Messenger msgr = i.getParcelableExtra(WakeLoopService.STOP_CALLBACK); 92 if (msgr == null) { 93 Log.e(LOG_TAG, "no stop service callback found, cannot stop"); 94 } else { 95 Message msg = new Message(); 96 msg.what = WakeLoopService.MSG_STOP_SERVICE; 97 try { 98 msgr.send(msg); 99 } catch (RemoteException e) { 100 Log.e(LOG_TAG, "ignored remoted exception while attempting to stop service", e); 101 } 102 } 103 } 104 105 private void screenOn(Context context) { 106 PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 107 @SuppressWarnings("deprecation") 108 WakeLock wl = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK | 109 PowerManager.ACQUIRE_CAUSES_WAKEUP, LOG_TAG); 110 wl.acquire(500); 111 } 112 } 113