| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * 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.server.backup.internal; |
| |
| import static com.android.server.backup.RefactoredBackupManagerService.TAG; |
| |
| import android.app.AlarmManager; |
| import android.app.backup.BackupTransport; |
| import android.app.backup.IBackupObserver; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.util.EventLog; |
| import android.util.Slog; |
| |
| import com.android.internal.backup.IBackupTransport; |
| import com.android.server.EventLogTags; |
| import com.android.server.backup.RefactoredBackupManagerService; |
| |
| import java.io.File; |
| |
| public class PerformInitializeTask implements Runnable { |
| |
| private RefactoredBackupManagerService backupManagerService; |
| String[] mQueue; |
| IBackupObserver mObserver; |
| |
| public PerformInitializeTask(RefactoredBackupManagerService backupManagerService, |
| String[] transportNames, IBackupObserver observer) { |
| this.backupManagerService = backupManagerService; |
| mQueue = transportNames; |
| mObserver = observer; |
| } |
| |
| private void notifyResult(String target, int status) { |
| try { |
| if (mObserver != null) { |
| mObserver.onResult(target, status); |
| } |
| } catch (RemoteException ignored) { |
| mObserver = null; // don't try again |
| } |
| } |
| |
| private void notifyFinished(int status) { |
| try { |
| if (mObserver != null) { |
| mObserver.backupFinished(status); |
| } |
| } catch (RemoteException ignored) { |
| mObserver = null; |
| } |
| } |
| |
| public void run() { |
| // mWakelock is *acquired* when execution begins here |
| int result = BackupTransport.TRANSPORT_OK; |
| try { |
| for (String transportName : mQueue) { |
| IBackupTransport transport = |
| backupManagerService.getTransportManager().getTransportBinder( |
| transportName); |
| if (transport == null) { |
| Slog.e(TAG, "Requested init for " + transportName + " but not found"); |
| continue; |
| } |
| |
| Slog.i(TAG, "Initializing (wiping) backup transport storage: " + transportName); |
| String transportDirName = transport.transportDirName(); |
| EventLog.writeEvent(EventLogTags.BACKUP_START, transportDirName); |
| long startRealtime = SystemClock.elapsedRealtime(); |
| int status = transport.initializeDevice(); |
| |
| if (status == BackupTransport.TRANSPORT_OK) { |
| status = transport.finishBackup(); |
| } |
| |
| // Okay, the wipe really happened. Clean up our local bookkeeping. |
| if (status == BackupTransport.TRANSPORT_OK) { |
| Slog.i(TAG, "Device init successful"); |
| int millis = (int) (SystemClock.elapsedRealtime() - startRealtime); |
| EventLog.writeEvent(EventLogTags.BACKUP_INITIALIZE); |
| backupManagerService |
| .resetBackupState(new File(backupManagerService.getBaseStateDir(), |
| transportDirName)); |
| EventLog.writeEvent(EventLogTags.BACKUP_SUCCESS, 0, millis); |
| synchronized (backupManagerService.getQueueLock()) { |
| backupManagerService.recordInitPendingLocked(false, transportName); |
| } |
| notifyResult(transportName, BackupTransport.TRANSPORT_OK); |
| } else { |
| // If this didn't work, requeue this one and try again |
| // after a suitable interval |
| Slog.e(TAG, "Transport error in initializeDevice()"); |
| EventLog.writeEvent(EventLogTags.BACKUP_TRANSPORT_FAILURE, "(initialize)"); |
| synchronized (backupManagerService.getQueueLock()) { |
| backupManagerService.recordInitPendingLocked(true, transportName); |
| } |
| notifyResult(transportName, status); |
| result = status; |
| |
| // do this via another alarm to make sure of the wakelock states |
| long delay = transport.requestBackupTime(); |
| Slog.w(TAG, "Init failed on " + transportName + " resched in " + delay); |
| backupManagerService.getAlarmManager().set(AlarmManager.RTC_WAKEUP, |
| System.currentTimeMillis() + delay, |
| backupManagerService.getRunInitIntent()); |
| } |
| } |
| } catch (Exception e) { |
| Slog.e(TAG, "Unexpected error performing init", e); |
| result = BackupTransport.TRANSPORT_ERROR; |
| } finally { |
| // Done; release the wakelock |
| notifyFinished(result); |
| backupManagerService.getWakelock().release(); |
| } |
| } |
| } |