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/*
* Copyright (C) 2018 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 android.annotation.UserIdInt;
import com.android.server.LocalServices;
/**
* Stores a copy of the set of device policies maintained by {@link DevicePolicyManager} that
* can be accessed from any place without risking dead locks.
*
* @hide
*/
public abstract class DevicePolicyCache {
protected DevicePolicyCache() {
}
/**
* @return the instance.
*/
public static DevicePolicyCache getInstance() {
final DevicePolicyManagerInternal dpmi =
LocalServices.getService(DevicePolicyManagerInternal.class);
return (dpmi != null) ? dpmi.getDevicePolicyCache() : EmptyDevicePolicyCache.INSTANCE;
}
/**
* See {@link DevicePolicyManager#getScreenCaptureDisabled}
*/
public abstract boolean getScreenCaptureDisabled(@UserIdInt int userHandle);
/**
* Caches {@link DevicePolicyManager#getPasswordQuality(android.content.ComponentName)} of the
* given user with {@code null} passed in as argument.
*/
public abstract int getPasswordQuality(@UserIdInt int userHandle);
/**
* Empty implementation.
*/
private static class EmptyDevicePolicyCache extends DevicePolicyCache {
private static final EmptyDevicePolicyCache INSTANCE = new EmptyDevicePolicyCache();
@Override
public boolean getScreenCaptureDisabled(int userHandle) {
return false;
}
@Override
public int getPasswordQuality(int userHandle) {
return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
}
}
}
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