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/*
* 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.content.pm.PackageInfo;
import android.util.Slog;
import com.android.internal.backup.IBackupTransport;
import com.android.server.backup.RefactoredBackupManagerService;
import com.android.server.backup.TransportManager;
import com.android.server.backup.transport.TransportClient;
import java.io.File;
public class PerformClearTask implements Runnable {
private final RefactoredBackupManagerService mBackupManagerService;
private final TransportManager mTransportManager;
private final TransportClient mTransportClient;
private final PackageInfo mPackage;
private final OnTaskFinishedListener mListener;
PerformClearTask(RefactoredBackupManagerService backupManagerService,
TransportClient transportClient, PackageInfo packageInfo,
OnTaskFinishedListener listener) {
mBackupManagerService = backupManagerService;
mTransportManager = backupManagerService.getTransportManager();
mTransportClient = transportClient;
mPackage = packageInfo;
mListener = listener;
}
public void run() {
String callerLogString = "PerformClearTask.run()";
IBackupTransport transport = null;
try {
// Clear the on-device backup state to ensure a full backup next time
String transportDirName =
mTransportManager.getTransportDirName(mTransportClient.getTransportComponent());
File stateDir = new File(mBackupManagerService.getBaseStateDir(), transportDirName);
File stateFile = new File(stateDir, mPackage.packageName);
stateFile.delete();
transport = mTransportClient.connectOrThrow(callerLogString);
// Tell the transport to remove all the persistent storage for the app
// TODO - need to handle failures
transport.clearBackupData(mPackage);
} catch (Exception e) {
Slog.e(TAG, "Transport threw clearing data for " + mPackage + ": " + e.getMessage());
} finally {
if (transport != null) {
try {
// TODO - need to handle failures
transport.finishBackup();
} catch (Exception e) {
// Nothing we can do here, alas
Slog.e(TAG, "Unable to mark clear operation finished: " + e.getMessage());
}
}
mListener.onFinished(callerLogString);
// Last but not least, release the cpu
mBackupManagerService.getWakelock().release();
}
}
}
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