android/content/rollback/RollbackManagerFrameworkInitializer.java

/*
 * 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.content.rollback;

import android.app.SystemServiceRegistry;
import android.content.Context;

/**
 * Class holding initialization code for the RollbackManager module.
 *
 * @hide
 */
public class RollbackManagerFrameworkInitializer {
    private RollbackManagerFrameworkInitializer() {}

    /**
     * Called by {@link SystemServiceRegistry}'s static initializer and registers RollbackManager
     * to {@link Context}, so that {@link Context#getSystemService} can return it.
     *
     * @throws IllegalStateException if this is called from anywhere besides
     *     {@link SystemServiceRegistry}
     */
    public static void initialize() {
        SystemServiceRegistry.registerContextAwareService(
                Context.ROLLBACK_SERVICE, RollbackManager.class,
                (context, b) -> new RollbackManager(context, IRollbackManager.Stub.asInterface(b)));
    }
}