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/*
* Copyright (C) 2015 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;
import android.app.AppGlobals;
import android.app.backup.BlobBackupHelper;
import android.content.pm.IPackageManager;
import android.os.UserHandle;
import android.util.Slog;
public class PreferredActivityBackupHelper extends BlobBackupHelper {
private static final String TAG = "PreferredBackup";
private static final boolean DEBUG = false;
// current schema of the backup state blob
private static final int STATE_VERSION = 3;
// key under which the preferred-activity state blob is committed to backup
private static final String KEY_PREFERRED = "preferred-activity";
// key for default-browser [etc] state
private static final String KEY_DEFAULT_APPS = "default-apps";
// intent-filter verification state
private static final String KEY_INTENT_VERIFICATION = "intent-verification";
public PreferredActivityBackupHelper() {
super(STATE_VERSION,
KEY_PREFERRED,
KEY_DEFAULT_APPS,
KEY_INTENT_VERIFICATION);
}
@Override
protected byte[] getBackupPayload(String key) {
IPackageManager pm = AppGlobals.getPackageManager();
if (DEBUG) {
Slog.d(TAG, "Handling backup of " + key);
}
try {
switch (key) {
case KEY_PREFERRED:
return pm.getPreferredActivityBackup(UserHandle.USER_OWNER);
case KEY_DEFAULT_APPS:
return pm.getDefaultAppsBackup(UserHandle.USER_OWNER);
case KEY_INTENT_VERIFICATION:
return pm.getIntentFilterVerificationBackup(UserHandle.USER_OWNER);
default:
Slog.w(TAG, "Unexpected backup key " + key);
}
} catch (Exception e) {
Slog.e(TAG, "Unable to store payload " + key);
}
return null;
}
@Override
protected void applyRestoredPayload(String key, byte[] payload) {
IPackageManager pm = AppGlobals.getPackageManager();
if (DEBUG) {
Slog.d(TAG, "Handling restore of " + key);
}
try {
switch (key) {
case KEY_PREFERRED:
pm.restorePreferredActivities(payload, UserHandle.USER_OWNER);
break;
case KEY_DEFAULT_APPS:
pm.restoreDefaultApps(payload, UserHandle.USER_OWNER);
break;
case KEY_INTENT_VERIFICATION:
pm.restoreIntentFilterVerification(payload, UserHandle.USER_OWNER);
break;
default:
Slog.w(TAG, "Unexpected restore key " + key);
}
} catch (Exception e) {
Slog.w(TAG, "Unable to restore key " + key);
}
}
}
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