1/*
2 * Copyright (C) 2015 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 com.android.server.backup;
18
19import android.app.INotificationManager;
20import android.app.backup.BlobBackupHelper;
21import android.content.Context;
22import android.os.ServiceManager;
23import android.os.UserHandle;
24import android.util.Log;
25import android.util.Slog;
26
27public class NotificationBackupHelper extends BlobBackupHelper {
28    static final String TAG = "NotifBackupHelper";   // must be < 23 chars
29    static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
30
31    // Current version of the blob schema
32    static final int BLOB_VERSION = 1;
33
34    // Key under which the payload blob is stored
35    static final String KEY_NOTIFICATIONS = "notifications";
36
37    public NotificationBackupHelper(Context context) {
38        super(BLOB_VERSION, KEY_NOTIFICATIONS);
39        // context is currently unused
40    }
41
42    @Override
43    protected byte[] getBackupPayload(String key) {
44        byte[] newPayload = null;
45        if (KEY_NOTIFICATIONS.equals(key)) {
46            try {
47                INotificationManager nm = INotificationManager.Stub.asInterface(
48                        ServiceManager.getService("notification"));
49                // TODO: http://b/22388012
50                newPayload = nm.getBackupPayload(UserHandle.USER_SYSTEM);
51            } catch (Exception e) {
52                // Treat as no data
53                Slog.e(TAG, "Couldn't communicate with notification manager");
54                newPayload = null;
55            }
56        }
57        return newPayload;
58    }
59
60    @Override
61    protected void applyRestoredPayload(String key, byte[] payload) {
62        if (DEBUG) {
63            Slog.v(TAG, "Got restore of " + key);
64        }
65
66        if (KEY_NOTIFICATIONS.equals(key)) {
67            try {
68                INotificationManager nm = INotificationManager.Stub.asInterface(
69                        ServiceManager.getService("notification"));
70                // TODO: http://b/22388012
71                nm.applyRestore(payload, UserHandle.USER_SYSTEM);
72            } catch (Exception e) {
73                Slog.e(TAG, "Couldn't communicate with notification manager");
74            }
75        }
76    }
77
78}
79