1 /*
2  * Copyright (C) 2022 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 
17 package com.android.server.pm;
18 
19 import static com.android.internal.annotations.VisibleForTesting.Visibility.PRIVATE;
20 
21 import com.android.internal.annotations.VisibleForTesting;
22 import com.android.server.pm.pkg.AndroidPackage;
23 import com.android.server.pm.pkg.PackageStateInternal;
24 
25 @VisibleForTesting(visibility = PRIVATE)
26 interface FeatureConfig {
27 
28     /** Called when the system is ready and components can be queried. */
onSystemReady()29     void onSystemReady();
30 
31     /** @return true if we should filter apps at all. */
isGloballyEnabled()32     boolean isGloballyEnabled();
33 
34     /** @return true if the feature is enabled for the given package. */
packageIsEnabled(AndroidPackage pkg)35     boolean packageIsEnabled(AndroidPackage pkg);
36 
37     /** @return true if debug logging is enabled for the given package. */
isLoggingEnabled(int appId)38     boolean isLoggingEnabled(int appId);
39 
40     /**
41      * Turns on logging for the given appId
42      *
43      * @param enable true if logging should be enabled, false if disabled.
44      */
enableLogging(int appId, boolean enable)45     void enableLogging(int appId, boolean enable);
46 
47     /**
48      * Initializes the package enablement state for the given package. This gives opportunity
49      * to do any expensive operations ahead of the actual checks.
50      *
51      * @param removed true if adding, false if removing
52      */
updatePackageState(PackageStateInternal setting, boolean removed)53     void updatePackageState(PackageStateInternal setting, boolean removed);
54 
snapshot()55     FeatureConfig snapshot();
56 }
57