80 lines
2.5 KiB
Java
80 lines
2.5 KiB
Java
/*
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* Copyright (C) 2014 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.inputmethod.latin.utils;
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import com.android.inputmethod.annotations.UsedForTesting;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ThreadFactory;
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/**
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* Utilities to manage executors.
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*/
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public class ExecutorUtils {
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private static final ConcurrentHashMap<String, ExecutorService> sExecutorMap =
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new ConcurrentHashMap<>();
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private static class ThreadFactoryWithId implements ThreadFactory {
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private final String mId;
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public ThreadFactoryWithId(final String id) {
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mId = id;
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}
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@Override
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public Thread newThread(final Runnable r) {
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return new Thread(r, "Executor - " + mId);
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}
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}
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/**
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* Gets the executor for the given id.
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*/
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public static ExecutorService getExecutor(final String id) {
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ExecutorService executor = sExecutorMap.get(id);
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if (executor == null) {
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synchronized(sExecutorMap) {
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executor = sExecutorMap.get(id);
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if (executor == null) {
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executor = Executors.newSingleThreadExecutor(new ThreadFactoryWithId(id));
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sExecutorMap.put(id, executor);
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}
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}
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}
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return executor;
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}
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/**
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* Shutdowns all executors and removes all executors from the executor map for testing.
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*/
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@UsedForTesting
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public static void shutdownAllExecutors() {
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synchronized(sExecutorMap) {
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for (final ExecutorService executor : sExecutorMap.values()) {
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executor.execute(new Runnable() {
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@Override
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public void run() {
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executor.shutdown();
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sExecutorMap.remove(executor);
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}
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});
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}
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}
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}
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}
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