1 /*
2  * Copyright (C) 2020 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 
17 package com.android.server.telecom;
18 
19 import android.annotation.NonNull;
20 import android.content.Context;
21 import android.os.PowerWhitelistManager;
22 import android.os.RemoteException;
23 import android.telecom.Log;
24 
25 import com.android.internal.telecom.IDeviceIdleControllerAdapter;
26 
27 /**
28  * Telecom is in the same process as the {@link PowerWhitelistManager}, so we can not make direct
29  * calls to the manager interface, since they will fail in the DeviceIdleController
30  * (see {@link Context#enforceCallingPermission(String, String)}). Instead, we must access it
31  * through SystemService#getLocalService, which is only accessible to the Telecom
32  * core loader service (TelecomLoaderService). Unfortunately, due to the architecture, this means
33  * we must use a Binder to allow services such as this to be accessible.
34  */
35 public class DeviceIdleControllerAdapter {
36 
37     private static final String TAG = "DeviceIdleControllerAdapter";
38 
39     private final IDeviceIdleControllerAdapter mAdapter;
40 
DeviceIdleControllerAdapter(IDeviceIdleControllerAdapter adapter)41     public DeviceIdleControllerAdapter(IDeviceIdleControllerAdapter adapter) {
42         mAdapter = adapter;
43     }
44 
45     /**
46      * Exempts an application from power restrictions for the duration specified. See
47      * DeviceIdleController for more information on how this works.
48      */
exemptAppTemporarilyForEvent(@onNull String packageName, long duration, int userHandle, @NonNull String reason)49     public void exemptAppTemporarilyForEvent(@NonNull String packageName, long duration,
50             int userHandle, @NonNull String reason) {
51         try {
52             mAdapter.exemptAppTemporarilyForEvent(packageName, duration, userHandle, reason);
53         } catch (RemoteException e) {
54             Log.w(TAG, "exemptAppTemporarilyForEvent e=" + e.getMessage());
55         }
56     }
57 }
58