| /* |
| * Copyright 1999-2015 dangdang.com. |
| * <p> |
| * 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. |
| * </p> |
| */ |
| |
| package io.elasticjob.cloud.executor.handler; |
| |
| import io.elasticjob.cloud.executor.handler.impl.DefaultExecutorServiceHandler; |
| import lombok.RequiredArgsConstructor; |
| import org.junit.After; |
| import org.junit.Test; |
| |
| import java.util.Set; |
| import java.util.concurrent.BrokenBarrierException; |
| import java.util.concurrent.CopyOnWriteArraySet; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.CyclicBarrier; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| |
| import static org.hamcrest.core.Is.is; |
| import static org.hamcrest.core.IsNot.not; |
| import static org.junit.Assert.assertThat; |
| |
| public final class ExecutorServiceHandlerRegistryTest { |
| |
| @After |
| public void clear() { |
| ExecutorServiceHandlerRegistry.remove("test_job"); |
| } |
| |
| @Test |
| public void assertRemove() { |
| ExecutorService actual = ExecutorServiceHandlerRegistry.getExecutorServiceHandler("test_job", new DefaultExecutorServiceHandler()); |
| ExecutorServiceHandlerRegistry.remove("test_job"); |
| assertThat(actual, not(ExecutorServiceHandlerRegistry.getExecutorServiceHandler("test_job", new DefaultExecutorServiceHandler()))); |
| } |
| |
| @Test |
| public void assertGetExecutorServiceHandlerForSameThread() { |
| assertThat(ExecutorServiceHandlerRegistry.getExecutorServiceHandler("test_job", new DefaultExecutorServiceHandler()), |
| is(ExecutorServiceHandlerRegistry.getExecutorServiceHandler("test_job", new DefaultExecutorServiceHandler()))); |
| } |
| |
| @Test |
| public void assertGetExecutorServiceHandlerForConcurrent() throws InterruptedException { |
| int threadCount = 100; |
| CyclicBarrier barrier = new CyclicBarrier(threadCount); |
| ExecutorService executorService = Executors.newFixedThreadPool(threadCount); |
| CountDownLatch latch = new CountDownLatch(threadCount); |
| Set<ExecutorService> set = new CopyOnWriteArraySet<>(); |
| for (int i = 0; i < threadCount; i++) { |
| executorService.submit(new GetExecutorServiceHandlerTask(barrier, latch, set)); |
| } |
| latch.await(); |
| assertThat(set.size(), is(1)); |
| assertThat(ExecutorServiceHandlerRegistry.getExecutorServiceHandler("test_job", new DefaultExecutorServiceHandler()), is(set.iterator().next())); |
| } |
| |
| @RequiredArgsConstructor |
| class GetExecutorServiceHandlerTask implements Runnable { |
| |
| private final CyclicBarrier barrier; |
| |
| private final CountDownLatch latch; |
| |
| private final Set<ExecutorService> set; |
| |
| @Override |
| public void run() { |
| try { |
| barrier.await(); |
| } catch (final InterruptedException | BrokenBarrierException ex) { |
| ex.printStackTrace(); |
| } |
| set.add(ExecutorServiceHandlerRegistry.getExecutorServiceHandler("test_job", new DefaultExecutorServiceHandler())); |
| latch.countDown(); |
| } |
| } |
| } |