78 lines
2.6 KiB
Java
78 lines
2.6 KiB
Java
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.os;
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import android.annotation.NonNull;
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import android.annotation.SystemApi;
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import android.annotation.SystemApi.Client;
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import android.app.StatsManager;
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import android.app.SystemServiceRegistry;
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import android.content.Context;
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/**
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* Class for performing registration for all stats services
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*
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* @hide
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*/
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@SystemApi(client = Client.MODULE_LIBRARIES)
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public class StatsFrameworkInitializer {
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private StatsFrameworkInitializer() {
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}
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private static volatile StatsServiceManager sStatsServiceManager;
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/**
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* Sets an instance of {@link StatsServiceManager} that allows
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* the statsd mainline module to register/obtain stats binder services. This is called
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* by the platform during the system initialization.
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*
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* @param statsServiceManager instance of {@link StatsServiceManager} that allows
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* the statsd mainline module to register/obtain statsd binder services.
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*/
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public static void setStatsServiceManager(
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@NonNull StatsServiceManager statsServiceManager) {
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if (sStatsServiceManager != null) {
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throw new IllegalStateException("setStatsServiceManager called twice!");
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}
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if (statsServiceManager == null) {
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throw new NullPointerException("statsServiceManager is null");
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}
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sStatsServiceManager = statsServiceManager;
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}
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/** @hide */
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public static StatsServiceManager getStatsServiceManager() {
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return sStatsServiceManager;
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}
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/**
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* Called by {@link SystemServiceRegistry}'s static initializer and registers all statsd
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* services to {@link Context}, so that {@link Context#getSystemService} can return them.
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*
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* @throws IllegalStateException if this is called from anywhere besides
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* {@link SystemServiceRegistry}
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*/
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public static void registerServiceWrappers() {
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SystemServiceRegistry.registerContextAwareService(
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Context.STATS_MANAGER,
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StatsManager.class,
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context -> new StatsManager(context)
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);
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}
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}
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