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/*
* 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;
}
}
}
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