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/*
* Copyright (C) 2009 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 android.app;
import android.app.backup.BackupAgent;
import android.app.backup.BackupDataInput;
import android.app.backup.BackupDataOutput;
import android.app.backup.FileBackupHelper;
import android.os.ParcelFileDescriptor;
import android.util.Log;
import java.io.File;
import java.util.ArrayList;
import java.util.LinkedList;
/**
* Backs up an application's entire /data/data/<package>/... file system. This
* class is used by the desktop full backup mechanism and is not intended for direct
* use by applications.
*
* {@hide}
*/
public class FullBackupAgent extends BackupAgent {
// !!! TODO: turn off debugging
private static final String TAG = "FullBackupAgent";
private static final boolean DEBUG = true;
@Override
public void onBackup(ParcelFileDescriptor oldState, BackupDataOutput data,
ParcelFileDescriptor newState) {
LinkedList<File> dirsToScan = new LinkedList<File>();
ArrayList<String> allFiles = new ArrayList<String>();
// build the list of files in the app's /data/data tree
dirsToScan.add(getFilesDir());
if (DEBUG) Log.v(TAG, "Backing up dir tree @ " + getFilesDir().getAbsolutePath() + " :");
while (dirsToScan.size() > 0) {
File dir = dirsToScan.removeFirst();
File[] contents = dir.listFiles();
if (contents != null) {
for (File f : contents) {
if (f.isDirectory()) {
dirsToScan.add(f);
} else if (f.isFile()) {
if (DEBUG) Log.v(TAG, " " + f.getAbsolutePath());
allFiles.add(f.getAbsolutePath());
}
}
}
}
// That's the file set; now back it all up
FileBackupHelper helper = new FileBackupHelper(this,
allFiles.toArray(new String[allFiles.size()]));
helper.performBackup(oldState, data, newState);
}
@Override
public void onRestore(BackupDataInput data, int appVersionCode, ParcelFileDescriptor newState) {
}
}
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