| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.cassandra.concurrent; |
| |
| import java.io.IOException; |
| import java.util.concurrent.CancellationException; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.ScheduledFuture; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import junit.framework.Assert; |
| import org.apache.cassandra.service.EmbeddedCassandraService; |
| import org.apache.cassandra.service.StorageService; |
| |
| public class DebuggableScheduledThreadPoolExecutorTest |
| { |
| |
| static EmbeddedCassandraService service; |
| |
| @BeforeClass |
| public static void startup() throws IOException |
| { |
| //The DSTPE checks for if we are in the service shutdown hook so |
| //to test it we need to start C* internally. |
| service = new EmbeddedCassandraService(); |
| service.start(); |
| } |
| |
| @Test |
| public void testShutdown() throws ExecutionException, InterruptedException, IOException |
| { |
| DebuggableScheduledThreadPoolExecutor testPool = new DebuggableScheduledThreadPoolExecutor("testpool"); |
| |
| final AtomicInteger value = new AtomicInteger(0); |
| |
| //Normal scheduled task |
| ScheduledFuture future = testPool.schedule(new Runnable() |
| { |
| public void run() |
| { |
| value.incrementAndGet(); |
| } |
| }, 1, TimeUnit.SECONDS); |
| |
| future.get(); |
| assert value.get() == 1; |
| |
| |
| //Shut down before schedule |
| future = testPool.schedule(new Runnable() |
| { |
| public void run() |
| { |
| value.incrementAndGet(); |
| } |
| }, 10, TimeUnit.SECONDS); |
| |
| |
| StorageService.instance.drain(); |
| testPool.shutdown(); |
| |
| future.get(); |
| assert value.get() == 2; |
| |
| |
| //Now shut down verify task isn't just swallowed |
| future = testPool.schedule(new Runnable() |
| { |
| public void run() |
| { |
| value.incrementAndGet(); |
| } |
| }, 1, TimeUnit.SECONDS); |
| |
| |
| try |
| { |
| future.get(2, TimeUnit.SECONDS); |
| Assert.fail("Task should be cancelled"); |
| } |
| catch (CancellationException e) |
| { |
| |
| } |
| catch (TimeoutException e) |
| { |
| Assert.fail("Task should be cancelled"); |
| } |
| |
| assert future.isCancelled(); |
| assert value.get() == 2; |
| } |
| } |