/**
* 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.openejb.server.ejbd;
import junit.framework.TestCase;
import org.apache.openejb.OpenEJB;
import org.apache.openejb.assembler.classic.Assembler;
import org.apache.openejb.assembler.classic.StatelessSessionContainerInfo;
import org.apache.openejb.config.ConfigurationFactory;
import org.apache.openejb.core.ServerFederation;
import org.apache.openejb.jee.EjbJar;
import org.apache.openejb.jee.StatelessBean;
import org.apache.openejb.loader.SystemInstance;
import org.apache.openejb.server.ServiceDaemon;
import org.apache.openejb.server.ServicePool;
import javax.ejb.Remote;
import javax.ejb.Stateless;
import javax.ejb.ConcurrentAccessException;
import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.Properties;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @version $Rev$ $Date$
*/
public class MultithreadTest extends TestCase {
private ServiceDaemon serviceDaemon;
private Counter counter;
private static CountDownLatch startPistol;
private static CountDownLatch startingLine;
private static CountDownLatch invocations;
public void testStatelessBeanPooling() throws Exception {
startPistol = new CountDownLatch(1);
startingLine = new CountDownLatch(10);
final CountDownLatch finishingLine = new CountDownLatch(30);
// Do a business method...
Runnable r = new Runnable() {
public void run() {
counter.race();
finishingLine.countDown();
}
};
// -- READY --
// How much ever the no of client invocations the count should be 10 as only 10 instances will be created.
for (int i = 0; i < 30; i++) {
Thread t = new Thread(r);
t.start();
}
// Wait for the beans to reach the finish line
startingLine.await(1000, TimeUnit.MILLISECONDS);
// -- SET --
assertEquals(10, CounterBean.instances.get());
// -- GO --
startPistol.countDown(); // go
finishingLine.await(1000, TimeUnit.MILLISECONDS);
// -- DONE --
assertEquals(10, CounterBean.instances.get());
}
public void testStatelessBeanRelease() throws Exception {
invocations = new CountDownLatch(30);
// Do a business method...
Runnable r = new Runnable(){
public void run(){
try{
counter.explode();
}catch(Exception e){
}
}
};
// -- READY --
// 30 instances should be created and discarded.
for (int i = 0; i < 30; i++) {
Thread t = new Thread(r);
t.start();
}
boolean success = invocations.await(10000, TimeUnit.MILLISECONDS);
assertTrue(success);
assertEquals(30, CounterBean.discardedInstances.get());
}
public void testStatelessBeanTimeout() throws Exception {
final CountDownLatch timeouts = new CountDownLatch(10);
startPistol = new CountDownLatch(1);
startingLine = new CountDownLatch(10);
// Do a business method...
Runnable r = new Runnable(){
public void run(){
try{
counter.race();
}catch (ConcurrentAccessException ex){
comment("Leap Start");
timeouts.countDown();
assertEquals("An invocation of the Stateless Session Bean CounterBean has timed-out", ex.getMessage());
} catch (Throwable t) {
fail("Unexpected exception" + t.getClass().getName() + " " + t.getMessage());
}
}
};
comment("On your mark!");
for (int i = 0; i < 20; i++) {
Thread t = new Thread(r);
t.start();
}
// Wait for the beans to reach the start line
assertTrue("expected 10 invocations", startingLine.await(3000, TimeUnit.MILLISECONDS));
comment("Get Set!");
// Wait for the other beans timeout
assertTrue("expected 10 timeouts", timeouts.await(300000, TimeUnit.MILLISECONDS));
assertEquals(10, CounterBean.instances.get());
comment("Go!");
startPistol.countDown(); // go
}
@Override
protected void tearDown() throws Exception {
super.tearDown();
serviceDaemon.stop();
OpenEJB.destroy();
}
protected void setUp() throws Exception {
super.setUp();
int poolSize = 10;
System.setProperty("openejb.client.connectionpool.size", "" + (poolSize*2));
EjbServer ejbServer = new EjbServer();
KeepAliveServer keepAliveServer = new KeepAliveServer(ejbServer);
Properties initProps = new Properties();
initProps.setProperty("openejb.deployments.classpath.include", "");
initProps.setProperty("openejb.deployments.classpath.filter.descriptors", "true");
OpenEJB.init(initProps, new ServerFederation());
ejbServer.init(new Properties());
ServicePool pool = new ServicePool(keepAliveServer, (poolSize*2));
this.serviceDaemon = new ServiceDaemon(pool, 0, "localhost");
serviceDaemon.start();
int port = serviceDaemon.getPort();
ConfigurationFactory config = new ConfigurationFactory();
Assembler assembler = SystemInstance.get().getComponent(Assembler.class);
// containers
StatelessSessionContainerInfo statelessContainerInfo = config.configureService(StatelessSessionContainerInfo.class);
statelessContainerInfo.properties.setProperty("TimeOut", "100");
statelessContainerInfo.properties.setProperty("PoolSize", "" + poolSize);
statelessContainerInfo.properties.setProperty("MinSize", "2");
statelessContainerInfo.properties.setProperty("StrictPooling", "true");
assembler.createContainer(statelessContainerInfo);
// Setup the descriptor information
StatelessBean bean = new StatelessBean(CounterBean.class);
bean.addBusinessLocal(Counter.class.getName());
bean.addBusinessRemote(RemoteCounter.class.getName());
bean.addPostConstruct("init");
bean.addPreDestroy("destroy");
EjbJar ejbJar = new EjbJar();
ejbJar.addEnterpriseBean(bean);
CounterBean.instances.set(0);
assembler.createApplication(config.configureApplication(ejbJar));
Properties props = new Properties();
props.put("java.naming.factory.initial", "org.apache.openejb.client.RemoteInitialContextFactory");
props.put("java.naming.provider.url", "ejbd://127.0.0.1:" + port);
Context context = new InitialContext(props);
counter = (Counter) context.lookup("CounterBeanRemote");
}
public static Object lock = new Object[]{};
private static void comment(String x) {
// synchronized(lock){
// System.out.println(x);
// System.out.flush();
// }
}
public static interface Counter {
int count();
void race();
void explode();
}
@Remote
public static interface RemoteCounter extends Counter {
}
@Stateless
public static class CounterBean implements Counter, RemoteCounter {
public static AtomicInteger instances = new AtomicInteger();
public static AtomicInteger discardedInstances = new AtomicInteger();
private int count;
public CounterBean() {
count = instances.incrementAndGet();
}
public int count() {
return instances.get();
}
public int discardCount() {
return discardedInstances.get();
}
public void explode() {
try {
discardedInstances.incrementAndGet();
throw new NullPointerException();
} finally {
invocations.countDown();
}
}
public void race() {
comment("ready = " + count);
startingLine.countDown();
try {
startPistol.await();
comment("running = " + count);
} catch (InterruptedException e) {
Thread.interrupted();
}
}
public void init() {
}
public void destroy() {
}
}
}