1 /* 2 * Copyright (C) 2012 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 com.android.calendar.alerts; 18 19 import android.app.IntentService; 20 import android.content.ContentValues; 21 import android.content.Intent; 22 import android.net.Uri; 23 import android.os.SystemClock; 24 import android.provider.CalendarContract; 25 import android.util.Log; 26 27 /** 28 * Service for clearing all scheduled alerts from the CalendarAlerts table and 29 * rescheduling them. This is expected to be called only on boot up, to restore 30 * the AlarmManager alarms that were lost on device restart. 31 */ 32 public class InitAlarmsService extends IntentService { 33 private static final String TAG = "InitAlarmsService"; 34 private static final String SCHEDULE_ALARM_REMOVE_PATH = "schedule_alarms_remove"; 35 private static final Uri SCHEDULE_ALARM_REMOVE_URI = Uri.withAppendedPath( 36 CalendarContract.CONTENT_URI, SCHEDULE_ALARM_REMOVE_PATH); 37 38 // Delay for rescheduling the alarms must be great enough to minimize race 39 // conditions with the provider's boot up actions. 40 private static final long DELAY_MS = 30000; 41 42 public InitAlarmsService() { 43 super("InitAlarmsService"); 44 } 45 46 @Override 47 protected void onHandleIntent(Intent intent) { 48 // Delay to avoid race condition of in-progress alarm scheduling in provider. 49 SystemClock.sleep(DELAY_MS); 50 Log.d(TAG, "Clearing and rescheduling alarms."); 51 try { 52 getContentResolver().update(SCHEDULE_ALARM_REMOVE_URI, new ContentValues(), null, 53 null); 54 } catch (java.lang.IllegalArgumentException e) { 55 // java.lang.IllegalArgumentException: 56 // Unknown URI content://com.android.calendar/schedule_alarms_remove 57 58 // Until b/7742576 is resolved, just catch the exception so the app won't crash 59 Log.e(TAG, "update failed: " + e.toString()); 60 } 61 } 62 } 63
