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* 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.
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package org.apache.activemq.artemis.tests.integration.server;
import java.lang.reflect.Field;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.apache.activemq.artemis.core.server.ActiveMQServer;
import org.apache.activemq.artemis.core.server.ServiceRegistry;
import org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl;
import org.apache.activemq.artemis.core.server.impl.ServiceRegistryImpl;
import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
import org.apache.activemq.artemis.utils.ActiveMQThreadFactory;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class SuppliedThreadPoolTest extends ActiveMQTestBase {
private ActiveMQServer server;
private ServiceRegistry serviceRegistry;
@Before
public void setup() throws Exception {
serviceRegistry = new ServiceRegistryImpl();
serviceRegistry.setExecutorService(Executors.newFixedThreadPool(1, ActiveMQThreadFactory.defaultThreadFactory()));
serviceRegistry.setIOExecutorService(Executors.newFixedThreadPool(5, ActiveMQThreadFactory.defaultThreadFactory()));
serviceRegistry.setScheduledExecutorService(Executors.newScheduledThreadPool(1, ActiveMQThreadFactory.defaultThreadFactory()));
server = new ActiveMQServerImpl(null, null, null, null, serviceRegistry);
server.start();
server.waitForActivation(100, TimeUnit.MILLISECONDS);
}
@Override
@After
public void tearDown() throws Exception {
if (server.isActive()) {
server.stop();
}
serviceRegistry.getExecutorService().shutdown();
serviceRegistry.getScheduledExecutorService().shutdown();
serviceRegistry.getIOExecutorService().shutdown();
super.tearDown();
}
@Test
public void testSuppliedThreadPoolsAreCorrectlySet() throws Exception {
assertEquals(serviceRegistry.getScheduledExecutorService(), server.getScheduledPool());
// To check the Executor is what we expect we must reflectively inspect the OrderedExecutorFactory.
Field field = server.getExecutorFactory().getClass().getDeclaredField("parent");
field.setAccessible(true);
assertEquals(serviceRegistry.getExecutorService(), field.get(server.getExecutorFactory()));
}
@Test
public void testServerDoesNotShutdownSuppliedThreadPoolsOnStop() throws Exception {
server.stop();
ScheduledExecutorService scheduledExecutorService = server.getScheduledPool();
Field field = server.getExecutorFactory().getClass().getDeclaredField("parent");
field.setAccessible(true);
ExecutorService threadPool = (ExecutorService) field.get(server.getExecutorFactory());
// Ensure that references to the supplied Thread Pools still exist after shutdown.
assertNotNull(threadPool);
assertNotNull(scheduledExecutorService);
// Ensure that ActiveMQ Artemis does not shutdown supplied thread pools.
assertFalse(threadPool.isShutdown());
assertFalse(scheduledExecutorService.isShutdown());
}
@Test
public void testCanRestartWithSuppliedThreadPool() throws Exception {
server.stop();
server.start();
server.waitForActivation(100, TimeUnit.MILLISECONDS);
testSuppliedThreadPoolsAreCorrectlySet();
}
@Test
public void testJobsGetScheduledToSuppliedThreadPool() throws Exception {
server.stop();
ScheduledThreadPoolExecutor scheduledExecutorService = (ScheduledThreadPoolExecutor) server.getScheduledPool();
Field field = server.getExecutorFactory().getClass().getDeclaredField("parent");
field.setAccessible(true);
ThreadPoolExecutor threadPool = (ThreadPoolExecutor) field.get(server.getExecutorFactory());
// Check jobs are getting scheduled and executed.
assertTrue(threadPool.getCompletedTaskCount() > 0);
assertTrue(scheduledExecutorService.getTaskCount() > 0);
}
}