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