1 /*
2  * Copyright (C) 2018 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 package com.android.server.content;
17 
18 import android.app.ActivityManagerInternal;
19 import android.app.usage.UsageStatsManagerInternal;
20 import android.content.pm.UserPackage;
21 import android.os.SystemClock;
22 
23 import com.android.server.LocalServices;
24 
25 import java.util.HashMap;
26 
27 class SyncAdapterStateFetcher {
28 
29     private final HashMap<UserPackage, Integer> mBucketCache = new HashMap<>();
30 
SyncAdapterStateFetcher()31     public SyncAdapterStateFetcher() {
32     }
33 
34     /**
35      * Return sync adapter state with a cache.
36      */
getStandbyBucket(int userId, String packageName)37     public int getStandbyBucket(int userId, String packageName) {
38         final UserPackage key = UserPackage.of(userId, packageName);
39         final Integer cached = mBucketCache.get(key);
40         if (cached != null) {
41             return cached;
42         }
43         final UsageStatsManagerInternal usmi =
44                 LocalServices.getService(UsageStatsManagerInternal.class);
45         if (usmi == null) {
46             return -1; // Unknown.
47         }
48 
49         final int value = usmi.getAppStandbyBucket(packageName, userId,
50                 SystemClock.elapsedRealtime());
51         mBucketCache.put(key, value);
52         return value;
53     }
54 
55     /**
56      * Return UID active state.
57      */
isAppActive(int uid)58     public boolean isAppActive(int uid) {
59         final ActivityManagerInternal ami = LocalServices.getService(ActivityManagerInternal.class);
60         return (ami != null) ? ami.isUidActive(uid) : false;
61     }
62 }
63