| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package android.app.admin; |
| |
| import com.android.server.LocalServices; |
| |
| /** |
| * Stores a copy of the set of device state maintained by {@link DevicePolicyManager} which |
| * is not directly related to admin policies. This lives in its own class so that the state |
| * can be accessed from any place without risking dead locks. |
| * |
| * @hide |
| */ |
| public abstract class DeviceStateCache { |
| protected DeviceStateCache() { |
| } |
| |
| /** |
| * @return the instance. |
| */ |
| public static DeviceStateCache getInstance() { |
| final DevicePolicyManagerInternal dpmi = |
| LocalServices.getService(DevicePolicyManagerInternal.class); |
| return (dpmi != null) ? dpmi.getDeviceStateCache() : EmptyDeviceStateCache.INSTANCE; |
| } |
| |
| /** |
| * See {@link DevicePolicyManager#isDeviceProvisioned} |
| */ |
| public abstract boolean isDeviceProvisioned(); |
| |
| /** |
| * Empty implementation. |
| */ |
| private static class EmptyDeviceStateCache extends DeviceStateCache { |
| private static final EmptyDeviceStateCache INSTANCE = new EmptyDeviceStateCache(); |
| |
| @Override |
| public boolean isDeviceProvisioned() { |
| return false; |
| } |
| } |
| } |