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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 com.android.server;
import android.backup.AbsoluteFileBackupHelper;
import android.backup.BackupDataInput;
import android.backup.BackupDataInputStream;
import android.backup.BackupDataOutput;
import android.backup.BackupHelper;
import android.backup.BackupHelperAgent;
import android.content.Context;
import android.os.ParcelFileDescriptor;
import android.os.ServiceManager;
import android.os.SystemService;
import android.util.Log;
import java.io.File;
import java.io.IOException;
/**
* Backup agent for various system-managed data
*/
public class SystemBackupAgent extends BackupHelperAgent {
private static final String TAG = "SystemBackupAgent";
private static final String WALLPAPER_IMAGE = "/data/data/com.android.settings/files/wallpaper";
private static final String WALLPAPER_INFO = "/data/system/wallpaper_info.xml";
@Override
public void onCreate() {
addHelper("wallpaper", new AbsoluteFileBackupHelper(SystemBackupAgent.this,
new String[] { WALLPAPER_IMAGE, WALLPAPER_INFO }));
}
@Override
public void onRestore(BackupDataInput data, int appVersionCode, ParcelFileDescriptor newState)
throws IOException {
boolean success = false;
try {
super.onRestore(data, appVersionCode, newState);
WallpaperService wallpaper = (WallpaperService)ServiceManager.getService(
Context.WALLPAPER_SERVICE);
wallpaper.settingsRestored();
} catch (IOException ex) {
// If there was a failure, delete everything for the wallpaper, this is too aggresive,
// but this is hopefully a rare failure.
Log.d(TAG, "restore failed", ex);
(new File(WALLPAPER_IMAGE)).delete();
(new File(WALLPAPER_INFO)).delete();
}
}
}
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