| /* |
| * Copyright (C) 2019 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.car.telephony.common; |
| |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| |
| /** |
| * WorkerExecutor is a singleton tied to the application to provide {@link ExecutorService} for |
| * Dialer to run tasks in background. |
| */ |
| public class WorkerExecutor { |
| private static WorkerExecutor sWorkerExecutor; |
| |
| private ExecutorService mSingleThreadExecutor; |
| |
| /** Returns the singleton WorkerExecutor for the application. */ |
| public static WorkerExecutor getInstance() { |
| if (sWorkerExecutor == null) { |
| sWorkerExecutor = new WorkerExecutor(); |
| } |
| return sWorkerExecutor; |
| } |
| |
| private WorkerExecutor() { |
| mSingleThreadExecutor = Executors.newSingleThreadExecutor(); |
| } |
| |
| /** Returns the single thread executor. */ |
| public ExecutorService getSingleThreadExecutor() { |
| return mSingleThreadExecutor; |
| } |
| |
| /** Tears down the singleton WorkerExecutor for the application */ |
| public void tearDown() { |
| mSingleThreadExecutor.shutdown(); |
| sWorkerExecutor = null; |
| } |
| } |