1/*
2 * Copyright (C) 2016 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
17package android.os;
18
19import android.annotation.SystemApi;
20
21/**
22 * Callback function for UpdateEngine. Used to keep the caller up to date
23 * with progress, so the UI (if any) can be updated.
24 *
25 * The APIs defined in this class and UpdateEngine class must be in sync with
26 * the ones in
27 * system/update_engine/binder_bindings/android/os/IUpdateEngine.aidl and
28 * system/update_engine/binder_bindings/android/os/IUpdateEngineCallback.aidl.
29 *
30 * {@hide}
31 */
32@SystemApi
33public abstract class UpdateEngineCallback {
34
35    /**
36     * Invoked when anything changes. The value of {@code status} will
37     * be one of the values from {@link UpdateEngine.UpdateStatusConstants},
38     * and {@code percent} will be valid [TODO: in which cases?].
39     */
40    @SystemApi
41    public abstract void onStatusUpdate(int status, float percent);
42
43    /**
44     * Invoked when the payload has been applied, whether successfully or
45     * unsuccessfully. The value of {@code errorCode} will be one of the
46     * values from {@link UpdateEngine.ErrorCodeConstants}.
47     */
48    @SystemApi
49    public abstract void onPayloadApplicationComplete(int errorCode);
50}
51