Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 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 com.android.server; |
| 18 | |
Christopher Tate | 4528186 | 2010-03-05 15:46:30 -0800 | [diff] [blame] | 19 | import android.app.backup.BackupDataInput; |
Christopher Tate | 4528186 | 2010-03-05 15:46:30 -0800 | [diff] [blame] | 20 | import android.app.backup.BackupDataOutput; |
Christopher Tate | cc84c69 | 2010-03-29 14:54:02 -0700 | [diff] [blame] | 21 | import android.app.backup.BackupAgentHelper; |
Christopher Tate | 3f64f8d | 2010-12-10 17:12:19 -0800 | [diff] [blame^] | 22 | import android.app.backup.WallpaperBackupHelper; |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 23 | import android.content.Context; |
| 24 | import android.os.ParcelFileDescriptor; |
| 25 | import android.os.ServiceManager; |
Joe Onorato | 8a9b220 | 2010-02-26 18:56:32 -0800 | [diff] [blame] | 26 | import android.util.Slog; |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 27 | |
Christopher Tate | 3f64f8d | 2010-12-10 17:12:19 -0800 | [diff] [blame^] | 28 | |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 29 | import java.io.File; |
| 30 | import java.io.IOException; |
| 31 | |
| 32 | /** |
Christopher Tate | 7c2bb66 | 2009-09-20 19:47:46 -0700 | [diff] [blame] | 33 | * Backup agent for various system-managed data, currently just the system wallpaper |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 34 | */ |
Christopher Tate | cc84c69 | 2010-03-29 14:54:02 -0700 | [diff] [blame] | 35 | public class SystemBackupAgent extends BackupAgentHelper { |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 36 | private static final String TAG = "SystemBackupAgent"; |
| 37 | |
Christopher Tate | 7c2bb66 | 2009-09-20 19:47:46 -0700 | [diff] [blame] | 38 | // These paths must match what the WallpaperManagerService uses |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 39 | private static final String WALLPAPER_IMAGE = "/data/data/com.android.settings/files/wallpaper"; |
| 40 | private static final String WALLPAPER_INFO = "/data/system/wallpaper_info.xml"; |
| 41 | |
| 42 | @Override |
Christopher Tate | 7c2bb66 | 2009-09-20 19:47:46 -0700 | [diff] [blame] | 43 | public void onBackup(ParcelFileDescriptor oldState, BackupDataOutput data, |
| 44 | ParcelFileDescriptor newState) throws IOException { |
| 45 | // We only back up the data under the current "wallpaper" schema with metadata |
Dan Egnor | 541fa51 | 2009-11-11 17:00:06 -0800 | [diff] [blame] | 46 | WallpaperManagerService wallpaper = (WallpaperManagerService)ServiceManager.getService( |
| 47 | Context.WALLPAPER_SERVICE); |
| 48 | String[] files = new String[] { WALLPAPER_IMAGE, WALLPAPER_INFO }; |
| 49 | if (wallpaper != null && wallpaper.mName != null && wallpaper.mName.length() > 0) { |
| 50 | // When the wallpaper has a name, back up the info by itself. |
| 51 | // TODO: Don't rely on the innards of the service object like this! |
| 52 | // TODO: Send a delete for any stored wallpaper image in this case? |
| 53 | files = new String[] { WALLPAPER_INFO }; |
| 54 | } |
Christopher Tate | 3f64f8d | 2010-12-10 17:12:19 -0800 | [diff] [blame^] | 55 | addHelper("wallpaper", new WallpaperBackupHelper(SystemBackupAgent.this, files)); |
Christopher Tate | 7c2bb66 | 2009-09-20 19:47:46 -0700 | [diff] [blame] | 56 | super.onBackup(oldState, data, newState); |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 57 | } |
| 58 | |
| 59 | @Override |
| 60 | public void onRestore(BackupDataInput data, int appVersionCode, ParcelFileDescriptor newState) |
| 61 | throws IOException { |
Christopher Tate | 7c2bb66 | 2009-09-20 19:47:46 -0700 | [diff] [blame] | 62 | // On restore, we also support a previous data schema "system_files" |
Christopher Tate | 3f64f8d | 2010-12-10 17:12:19 -0800 | [diff] [blame^] | 63 | addHelper("wallpaper", new WallpaperBackupHelper(SystemBackupAgent.this, |
Christopher Tate | 7c2bb66 | 2009-09-20 19:47:46 -0700 | [diff] [blame] | 64 | new String[] { WALLPAPER_IMAGE, WALLPAPER_INFO })); |
Christopher Tate | 3f64f8d | 2010-12-10 17:12:19 -0800 | [diff] [blame^] | 65 | addHelper("system_files", new WallpaperBackupHelper(SystemBackupAgent.this, |
Christopher Tate | 7c2bb66 | 2009-09-20 19:47:46 -0700 | [diff] [blame] | 66 | new String[] { WALLPAPER_IMAGE })); |
| 67 | |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 68 | try { |
| 69 | super.onRestore(data, appVersionCode, newState); |
| 70 | |
Dianne Hackborn | 8cc6a50 | 2009-08-05 21:29:42 -0700 | [diff] [blame] | 71 | WallpaperManagerService wallpaper = (WallpaperManagerService)ServiceManager.getService( |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 72 | Context.WALLPAPER_SERVICE); |
| 73 | wallpaper.settingsRestored(); |
| 74 | } catch (IOException ex) { |
Christopher Tate | 3f64f8d | 2010-12-10 17:12:19 -0800 | [diff] [blame^] | 75 | // If there was a failure, delete everything for the wallpaper, this is too aggressive, |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 76 | // but this is hopefully a rare failure. |
Joe Onorato | 8a9b220 | 2010-02-26 18:56:32 -0800 | [diff] [blame] | 77 | Slog.d(TAG, "restore failed", ex); |
Joe Onorato | 9bb8fd7 | 2009-07-28 18:24:51 -0700 | [diff] [blame] | 78 | (new File(WALLPAPER_IMAGE)).delete(); |
| 79 | (new File(WALLPAPER_INFO)).delete(); |
| 80 | } |
| 81 | } |
| 82 | } |