57 lines
1.9 KiB
Java
57 lines
1.9 KiB
Java
/*
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* Copyright (C) 2024 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.app.appsearch;
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import android.annotation.NonNull;
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import com.android.internal.annotations.VisibleForTesting;
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/**
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* This is a factory class for implementations needed based on environment for framework code.
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*
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* @hide
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*/
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public class AppSearchEnvironmentFactory {
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private static volatile AppSearchEnvironment mEnvironmentInstance;
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/** Returns the singleton instance of {@link AppSearchEnvironment}. */
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@NonNull
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public static AppSearchEnvironment getEnvironmentInstance() {
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AppSearchEnvironment localRef = mEnvironmentInstance;
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if (localRef == null) {
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synchronized (AppSearchEnvironmentFactory.class) {
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localRef = mEnvironmentInstance;
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if (localRef == null) {
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mEnvironmentInstance = localRef = new FrameworkAppSearchEnvironment();
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}
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}
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}
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return localRef;
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}
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/** Sets an instance of {@link AppSearchEnvironment}. for testing. */
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@VisibleForTesting
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public static void setEnvironmentInstanceForTest(
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@NonNull AppSearchEnvironment appSearchEnvironment) {
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synchronized (AppSearchEnvironmentFactory.class) {
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mEnvironmentInstance = appSearchEnvironment;
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}
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}
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private AppSearchEnvironmentFactory() {}
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}
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