1 /*
2  * Copyright (C) 2019 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 android.app.admin;
17 
18 import android.annotation.UserIdInt;
19 
20 import com.android.server.LocalServices;
21 
22 /**
23  * Stores a copy of the set of device state maintained by {@link DevicePolicyManager} which
24  * is not directly related to admin policies. This lives in its own class so that the state
25  * can be accessed from any place without risking dead locks.
26  *
27  * @hide
28  */
29 public abstract class DeviceStateCache {
DeviceStateCache()30     protected DeviceStateCache() {
31     }
32 
33     /**
34      * @return the instance.
35      */
getInstance()36     public static DeviceStateCache getInstance() {
37         final DevicePolicyManagerInternal dpmi =
38                 LocalServices.getService(DevicePolicyManagerInternal.class);
39         return (dpmi != null) ? dpmi.getDeviceStateCache() : EmptyDeviceStateCache.INSTANCE;
40     }
41 
42     /**
43      * See {@link DevicePolicyManager#isDeviceProvisioned}
44      */
isDeviceProvisioned()45     public abstract boolean isDeviceProvisioned();
46 
47     /**
48      * True if either the entire device or the user is organization managed.
49      */
isUserOrganizationManaged(@serIdInt int userHandle)50     public abstract boolean isUserOrganizationManaged(@UserIdInt int userHandle);
51 
52     /**
53      * Returns whether a user has affiliated IDs.
54      */
55 
hasAffiliationWithDevice(int userId)56     public boolean hasAffiliationWithDevice(int userId) {
57         return false;
58     }
59 
60     /**
61      * Empty implementation.
62      */
63     private static class EmptyDeviceStateCache extends DeviceStateCache {
64         private static final EmptyDeviceStateCache INSTANCE = new EmptyDeviceStateCache();
65 
66         @Override
isDeviceProvisioned()67         public boolean isDeviceProvisioned() {
68             return false;
69         }
70 
71         @Override
isUserOrganizationManaged(int userHandle)72         public boolean isUserOrganizationManaged(int userHandle) {
73             return false;
74         }
75     }
76 }
77