| /* |
| * Copyright (C) 2020 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.os; |
| |
| import android.annotation.NonNull; |
| import android.annotation.SystemApi; |
| import android.annotation.SystemApi.Client; |
| import android.app.StatsManager; |
| import android.app.SystemServiceRegistry; |
| import android.content.Context; |
| |
| /** |
| * Class for performing registration for all stats services |
| * |
| * @hide |
| */ |
| @SystemApi(client = Client.MODULE_LIBRARIES) |
| public class StatsFrameworkInitializer { |
| private StatsFrameworkInitializer() { |
| } |
| |
| private static volatile StatsServiceManager sStatsServiceManager; |
| |
| /** |
| * Sets an instance of {@link StatsServiceManager} that allows |
| * the statsd mainline module to register/obtain stats binder services. This is called |
| * by the platform during the system initialization. |
| * |
| * @param statsServiceManager instance of {@link StatsServiceManager} that allows |
| * the statsd mainline module to register/obtain statsd binder services. |
| */ |
| public static void setStatsServiceManager( |
| @NonNull StatsServiceManager statsServiceManager) { |
| if (sStatsServiceManager != null) { |
| throw new IllegalStateException("setStatsServiceManager called twice!"); |
| } |
| |
| if (statsServiceManager == null) { |
| throw new NullPointerException("statsServiceManager is null"); |
| } |
| |
| sStatsServiceManager = statsServiceManager; |
| } |
| |
| /** @hide */ |
| public static StatsServiceManager getStatsServiceManager() { |
| return sStatsServiceManager; |
| } |
| |
| /** |
| * Called by {@link SystemServiceRegistry}'s static initializer and registers all statsd |
| * services to {@link Context}, so that {@link Context#getSystemService} can return them. |
| * |
| * @throws IllegalStateException if this is called from anywhere besides |
| * {@link SystemServiceRegistry} |
| */ |
| public static void registerServiceWrappers() { |
| SystemServiceRegistry.registerContextAwareService( |
| Context.STATS_MANAGER, |
| StatsManager.class, |
| context -> new StatsManager(context) |
| ); |
| } |
| } |