| /* |
| * 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"); |
| 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"); |
| } |
| } |
| } |
| |
| } |