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.app.Service; 22 import android.content.Context; 23 import android.content.Intent; 24 import android.os.Environment; 25 import android.os.Handler; 26 import android.os.IBinder; 27 import android.os.Message; 28 import android.os.Messenger; 29 import android.os.SystemClock; 30 import android.util.Log; 31 32 import java.io.File; 33 34 public class WakeLoopService extends Service { 35 36 private static final String LOG_TAG = WakeLoopService.class.getSimpleName(); 37 static final String WAKEUP_INTERNAL = "WAKEUP_INTERVAL"; 38 static final String MAX_LOOP = "MAX_LOOP"; 39 static final String STOP_CALLBACK = "STOP_CALLBACK"; 40 static final String THIS_LOOP = "THIS_LOOP"; 41 static final int MSG_STOP_SERVICE = 0xd1ed1e; 42 43 private final Handler mHandler = new Handler() { 44 public void handleMessage(Message msg) { 45 if (msg.what == MSG_STOP_SERVICE) { 46 stopSelf(); 47 } else { 48 super.handleMessage(msg); 49 } 50 }; 51 }; 52 53 @Override 54 public IBinder onBind(Intent intent) { 55 // no binding, just start via intent 56 return null; 57 } 58 59 @Override 60 public int onStartCommand(Intent intent, int flags, int startId) { 61 // get wakeup interval from intent 62 long wakeupInterval = intent.getLongExtra(WAKEUP_INTERNAL, 0); 63 long maxLoop = intent.getLongExtra(MAX_LOOP, 0); 64 65 if (wakeupInterval == 0) { 66 // stop and error 67 Log.e(LOG_TAG, "No wakeup interval specified, not starting the service"); 68 stopSelf(); 69 return START_NOT_STICKY; 70 } 71 FileUtil.get().writeDateToFile(new File(Environment.getExternalStorageDirectory(), 72 "wakeup-loop-start.txt")); 73 Log.d(LOG_TAG, String.format("WakeLoop: STARTED interval = %d, total loop = %d", 74 wakeupInterval, maxLoop)); 75 // calculate when device should be waken up 76 long atTime = SystemClock.elapsedRealtime() + wakeupInterval; 77 AlarmManager am = (AlarmManager)getSystemService(Context.ALARM_SERVICE); 78 Intent wakupIntent = new Intent(WakeUpCall.WAKEUP_CALL) 79 .putExtra(WAKEUP_INTERNAL, wakeupInterval) 80 .putExtra(MAX_LOOP, maxLoop) 81 .putExtra(THIS_LOOP, 0L) 82 .putExtra(STOP_CALLBACK, new Messenger(mHandler)); 83 PendingIntent pi = PendingIntent.getBroadcast(this, 0, wakupIntent, 84 PendingIntent.FLAG_UPDATE_CURRENT); 85 // set alarm, which will be delivered in form of the wakeupIntent 86 am.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, atTime, pi); 87 return START_NOT_STICKY; 88 } 89 90 @Override 91 public void onDestroy() { 92 Log.d(LOG_TAG, "WakeLoop: STOPPED"); 93 // cancel alarms first 94 Intent intent = new Intent(WakeUpCall.WAKEUP_CALL) 95 .putExtra(WakeUpCall.CANCEL, "true"); 96 sendBroadcast(intent); 97 } 98 } 99