Motivation: We can use lambdas now as we use Java8. Modification: use lambda function for all package, #8751 only migrate transport package. Result: Code cleanup.
163 lines
5.8 KiB
Java
163 lines
5.8 KiB
Java
/*
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* Copyright 2015 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.util.concurrent;
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import org.junit.Assert;
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import org.junit.Test;
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import java.util.Collections;
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import java.util.Set;
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import java.util.concurrent.Callable;
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import java.util.concurrent.Executor;
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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.RejectedExecutionException;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicReference;
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public class SingleThreadEventExecutorTest {
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@Test
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public void testWrappedExecutorIsShutdown() {
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ExecutorService executorService = Executors.newSingleThreadExecutor();
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SingleThreadEventExecutor executor = new SingleThreadEventExecutor(executorService) {
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@Override
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protected void run() {
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while (!confirmShutdown()) {
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Runnable task = takeTask();
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if (task != null) {
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task.run();
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}
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}
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}
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};
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executorService.shutdownNow();
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executeShouldFail(executor);
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executeShouldFail(executor);
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try {
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executor.shutdownGracefully().syncUninterruptibly();
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Assert.fail();
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} catch (RejectedExecutionException expected) {
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// expected
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}
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Assert.assertTrue(executor.isShutdown());
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}
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private static void executeShouldFail(Executor executor) {
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try {
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executor.execute(() -> {
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// Noop.
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});
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Assert.fail();
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} catch (RejectedExecutionException expected) {
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// expected
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}
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}
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@Test
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public void testThreadProperties() {
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final AtomicReference<Thread> threadRef = new AtomicReference<Thread>();
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SingleThreadEventExecutor executor = new SingleThreadEventExecutor(new DefaultThreadFactory("test")) {
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@Override
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protected void run() {
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threadRef.set(Thread.currentThread());
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while (!confirmShutdown()) {
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Runnable task = takeTask();
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if (task != null) {
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task.run();
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}
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}
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}
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};
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ThreadProperties threadProperties = executor.threadProperties();
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Thread thread = threadRef.get();
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Assert.assertEquals(thread.getId(), threadProperties.id());
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Assert.assertEquals(thread.getName(), threadProperties.name());
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Assert.assertEquals(thread.getPriority(), threadProperties.priority());
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Assert.assertEquals(thread.isAlive(), threadProperties.isAlive());
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Assert.assertEquals(thread.isDaemon(), threadProperties.isDaemon());
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Assert.assertTrue(threadProperties.stackTrace().length > 0);
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executor.shutdownGracefully();
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}
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@Test(expected = RejectedExecutionException.class, timeout = 3000)
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public void testInvokeAnyInEventLoop() {
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testInvokeInEventLoop(true, false);
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}
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@Test(expected = RejectedExecutionException.class, timeout = 3000)
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public void testInvokeAnyInEventLoopWithTimeout() {
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testInvokeInEventLoop(true, true);
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}
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@Test(expected = RejectedExecutionException.class, timeout = 3000)
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public void testInvokeAllInEventLoop() {
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testInvokeInEventLoop(false, false);
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}
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@Test(expected = RejectedExecutionException.class, timeout = 3000)
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public void testInvokeAllInEventLoopWithTimeout() {
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testInvokeInEventLoop(false, true);
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}
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private static void testInvokeInEventLoop(final boolean any, final boolean timeout) {
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final SingleThreadEventExecutor executor = new SingleThreadEventExecutor(Executors.defaultThreadFactory()) {
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@Override
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protected void run() {
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while (!confirmShutdown()) {
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Runnable task = takeTask();
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if (task != null) {
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task.run();
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}
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}
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}
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};
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try {
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final Promise<Void> promise = executor.newPromise();
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executor.execute(() -> {
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try {
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Set<Callable<Boolean>> set = Collections.singleton(() -> {
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promise.setFailure(new AssertionError("Should never execute the Callable"));
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return Boolean.TRUE;
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});
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if (any) {
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if (timeout) {
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executor.invokeAny(set, 10, TimeUnit.SECONDS);
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} else {
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executor.invokeAny(set);
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}
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} else {
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if (timeout) {
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executor.invokeAll(set, 10, TimeUnit.SECONDS);
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} else {
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executor.invokeAll(set);
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}
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}
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promise.setFailure(new AssertionError("Should never reach here"));
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} catch (Throwable cause) {
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promise.setFailure(cause);
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}
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});
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promise.syncUninterruptibly();
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} finally {
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executor.shutdownGracefully(0, 0, TimeUnit.MILLISECONDS);
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}
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}
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}
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