84 lines
2.6 KiB
Java
84 lines
2.6 KiB
Java
/*
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* Copyright (C) 2013 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 com.android.server;
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import com.android.internal.annotations.VisibleForTesting;
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import android.util.ArrayMap;
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/**
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* This class is used in a similar way as ServiceManager, except the services registered here
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* are not Binder objects and are only available in the same process.
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*
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* Once all services are converted to the SystemService interface, this class can be absorbed
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* into SystemServiceManager.
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*
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* {@hide}
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*/
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@android.ravenwood.annotation.RavenwoodKeepWholeClass
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public final class LocalServices {
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private LocalServices() {}
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private static final ArrayMap<Class<?>, Object> sLocalServiceObjects =
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new ArrayMap<Class<?>, Object>();
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/**
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* Returns a local service instance that implements the specified interface.
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*
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* @param type The type of service.
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* @return The service object.
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*/
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@SuppressWarnings("unchecked")
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public static <T> T getService(Class<T> type) {
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synchronized (sLocalServiceObjects) {
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return (T) sLocalServiceObjects.get(type);
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}
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}
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/**
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* Adds a service instance of the specified interface to the global registry of local services.
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*/
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public static <T> void addService(Class<T> type, T service) {
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synchronized (sLocalServiceObjects) {
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if (sLocalServiceObjects.containsKey(type)) {
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throw new IllegalStateException("Overriding service registration");
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}
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sLocalServiceObjects.put(type, service);
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}
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}
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/**
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* Remove a service instance, must be only used in tests.
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*/
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@VisibleForTesting
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public static <T> void removeServiceForTest(Class<T> type) {
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synchronized (sLocalServiceObjects) {
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sLocalServiceObjects.remove(type);
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}
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}
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/**
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* Remove all known service instances, must be only used in tests.
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*/
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@VisibleForTesting
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public static void removeAllServicesForTest() {
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synchronized (sLocalServiceObjects) {
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sLocalServiceObjects.clear();
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}
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}
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}
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