1 /* 2 * Copyright (C) 2009 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.app; 18 19 import android.app.backup.BackupAgent; 20 import android.app.backup.BackupDataInput; 21 import android.app.backup.BackupDataOutput; 22 import android.app.backup.FileBackupHelper; 23 import android.os.ParcelFileDescriptor; 24 import android.util.Log; 25 26 import java.io.File; 27 import java.util.ArrayList; 28 import java.util.LinkedList; 29 30 /** 31 * Backs up an application's entire /data/data/<package>/... file system. This 32 * class is used by the desktop full backup mechanism and is not intended for direct 33 * use by applications. 34 * 35 * {@hide} 36 */ 37 38 public class FullBackupAgent extends BackupAgent { 39 // !!! TODO: turn off debugging 40 private static final String TAG = "FullBackupAgent"; 41 private static final boolean DEBUG = true; 42 43 @Override 44 public void onBackup(ParcelFileDescriptor oldState, BackupDataOutput data, 45 ParcelFileDescriptor newState) { 46 LinkedList<File> dirsToScan = new LinkedList<File>(); 47 ArrayList<String> allFiles = new ArrayList<String>(); 48 49 // build the list of files in the app's /data/data tree 50 dirsToScan.add(getFilesDir()); 51 if (DEBUG) Log.v(TAG, "Backing up dir tree @ " + getFilesDir().getAbsolutePath() + " :"); 52 while (dirsToScan.size() > 0) { 53 File dir = dirsToScan.removeFirst(); 54 File[] contents = dir.listFiles(); 55 if (contents != null) { 56 for (File f : contents) { 57 if (f.isDirectory()) { 58 dirsToScan.add(f); 59 } else if (f.isFile()) { 60 if (DEBUG) Log.v(TAG, " " + f.getAbsolutePath()); 61 allFiles.add(f.getAbsolutePath()); 62 } 63 } 64 } 65 } 66 67 // That's the file set; now back it all up 68 FileBackupHelper helper = new FileBackupHelper(this, 69 allFiles.toArray(new String[allFiles.size()])); 70 helper.performBackup(oldState, data, newState); 71 } 72 73 @Override 74 public void onRestore(BackupDataInput data, int appVersionCode, ParcelFileDescriptor newState) { 75 } 76 } 77
