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/*
* Copyright (C) 2018 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.backup.BlobBackupHelper;
import android.app.slice.ISliceManager;
import android.content.Context;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.util.Log;
import android.util.Slog;
public class SliceBackupHelper extends BlobBackupHelper {
static final String TAG = "SliceBackupHelper";
static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
// Current version of the blob schema
static final int BLOB_VERSION = 1;
// Key under which the payload blob is stored
static final String KEY_SLICES = "slices";
public SliceBackupHelper(Context context) {
super(BLOB_VERSION, KEY_SLICES);
// context is currently unused
}
@Override
protected byte[] getBackupPayload(String key) {
byte[] newPayload = null;
if (KEY_SLICES.equals(key)) {
try {
ISliceManager sm = ISliceManager.Stub.asInterface(
ServiceManager.getService(Context.SLICE_SERVICE));
// TODO: http://b/22388012
newPayload = sm.getBackupPayload(UserHandle.USER_SYSTEM);
} catch (Exception e) {
// Treat as no data
Slog.e(TAG, "Couldn't communicate with slice manager", e);
newPayload = null;
}
}
return newPayload;
}
@Override
protected void applyRestoredPayload(String key, byte[] payload) {
if (DEBUG) Slog.v(TAG, "Got restore of " + key);
if (KEY_SLICES.equals(key)) {
try {
ISliceManager sm = ISliceManager.Stub.asInterface(
ServiceManager.getService(Context.SLICE_SERVICE));
// TODO: http://b/22388012
sm.applyRestore(payload, UserHandle.USER_SYSTEM);
} catch (Exception e) {
Slog.e(TAG, "Couldn't communicate with slice manager", e);
}
}
}
}
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