/**
*
* 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.core.stateless;
import junit.framework.TestCase;
import org.apache.openejb.OpenEJB;
import org.apache.openejb.assembler.classic.Assembler;
import org.apache.openejb.assembler.classic.ProxyFactoryInfo;
import org.apache.openejb.assembler.classic.SecurityServiceInfo;
import org.apache.openejb.assembler.classic.StatelessSessionContainerInfo;
import org.apache.openejb.assembler.classic.TransactionServiceInfo;
import org.apache.openejb.config.ConfigurationFactory;
import org.apache.openejb.core.LocalInitialContextFactory;
import org.apache.openejb.jee.EjbJar;
import org.apache.openejb.jee.StatelessBean;
import javax.ejb.ConcurrentAccessTimeoutException;
import javax.ejb.Remote;
import javax.ejb.Stateless;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @version $Revision$ $Date$
*/
public class StatelessInstanceManagerPoolingTest extends TestCase {
public static final AtomicInteger instances = new AtomicInteger();
public static final AtomicInteger discardedInstances = new AtomicInteger();
public void testStatelessBeanPooling() throws Exception {
final InitialContext ctx = new InitialContext();
final Object object = ctx.lookup("CounterBeanLocal");
assertTrue("instanceof counter", object instanceof Counter);
final CountDownLatch startPistol = new CountDownLatch(1);
final CountDownLatch startingLine = new CountDownLatch(10);
final CountDownLatch finishingLine = new CountDownLatch(30);
final Counter counter = (Counter) object;
// Do a business method...
final Runnable r = new Runnable() {
public void run() {
counter.race(startingLine, startPistol);
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++) {
final Thread t = new Thread(r);
t.start();
}
// Wait for the beans to reach the finish line
startingLine.await(1000, TimeUnit.MILLISECONDS);
// -- SET --
assertEquals(10, instances.get());
// -- GO --
startPistol.countDown(); // go
finishingLine.await(1000, TimeUnit.MILLISECONDS);
// -- DONE --
assertEquals(10, instances.get());
}
public void testStatelessBeanRelease() throws Exception {
final int count = 50;
final CountDownLatch invocations = new CountDownLatch(count);
final InitialContext ctx = new InitialContext();
// 'count' instances should be created and discarded.
for (int i = 0; i < count; i++) {
final Thread thread = new Thread(new Runnable() {
public void run() {
Object object = null;
try {
object = ctx.lookup("CounterBeanLocal");
} catch (final NamingException e) {
assertTrue(false);
}
final Counter counter = (Counter) object;
assertNotNull(counter);
boolean run = true;
while (run) {
try {
counter.explode();
} catch (final javax.ejb.ConcurrentAccessTimeoutException e) {
//Try again in moment...
try {
Thread.sleep(10);
} catch (final InterruptedException ie) {
//Ignore
}
} catch (final Exception e) {
invocations.countDown();
run = false;
}
}
}
}, "test-thread-" + count);
thread.setDaemon(false);
thread.start();
}
final boolean success = invocations.await(20, TimeUnit.SECONDS);
assertTrue("invocations timeout -> invocations.getCount() == " + invocations.getCount(), success);
assertEquals(count, discardedInstances.get());
}
public void testStatelessBeanTimeout() throws Exception {
final InitialContext ctx = new InitialContext();
final Object object = ctx.lookup("CounterBeanLocal");
assertTrue("instanceof counter", object instanceof Counter);
final CountDownLatch timeouts = new CountDownLatch(10);
final CountDownLatch startPistol = new CountDownLatch(1);
final CountDownLatch startingLine = new CountDownLatch(10);
final Counter counter = (Counter) object;
// Do a business method...
final Runnable r = new Runnable() {
public void run() {
try {
counter.race(startingLine, startPistol);
} catch (final ConcurrentAccessTimeoutException ex) {
comment("Leap Start");
timeouts.countDown();
}
}
};
comment("On your mark!");
for (int i = 0; i < 20; i++) {
final 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(3000, TimeUnit.MILLISECONDS));
assertEquals(10, instances.get(), 1.1);
comment("Go!");
startPistol.countDown(); // go
}
public static Object lock = new Object[]{};
private static void comment(final String x) {
// synchronized(lock){
// System.out.println(x);
// System.out.flush();
// }
}
protected void setUp() throws Exception {
super.setUp();
System.setProperty(javax.naming.Context.INITIAL_CONTEXT_FACTORY, LocalInitialContextFactory.class.getName());
final ConfigurationFactory config = new ConfigurationFactory();
final Assembler assembler = new Assembler();
assembler.createProxyFactory(config.configureService(ProxyFactoryInfo.class));
assembler.createTransactionManager(config.configureService(TransactionServiceInfo.class));
assembler.createSecurityService(config.configureService(SecurityServiceInfo.class));
// containers
final StatelessSessionContainerInfo statelessContainerInfo = config.configureService(StatelessSessionContainerInfo.class);
statelessContainerInfo.properties.setProperty("TimeOut", "100");
statelessContainerInfo.properties.setProperty("MaxSize", "10");
statelessContainerInfo.properties.setProperty("MinSize", "2");
statelessContainerInfo.properties.setProperty("StrictPooling", "true");
assembler.createContainer(statelessContainerInfo);
// Setup the descriptor information
final StatelessBean bean = new StatelessBean(CounterBean.class);
bean.addBusinessLocal(Counter.class.getName());
bean.addBusinessRemote(RemoteCounter.class.getName());
bean.addPostConstruct("init");
bean.addPreDestroy("destroy");
final EjbJar ejbJar = new EjbJar();
ejbJar.addEnterpriseBean(bean);
instances.set(0);
assembler.createApplication(config.configureApplication(ejbJar));
}
@Override
protected void tearDown() throws Exception {
OpenEJB.destroy();
}
public static interface Counter {
int count();
void race(CountDownLatch ready, CountDownLatch go);
void explode();
}
@Remote
public static interface RemoteCounter extends Counter {
}
public static enum Lifecycle {
CONSTRUCTOR, INJECTION, POST_CONSTRUCT, BUSINESS_METHOD, PRE_DESTROY
}
@Stateless
public static class CounterBean implements Counter, RemoteCounter {
private final int count;
public CounterBean() {
count = instances.incrementAndGet();
}
public int count() {
return instances.get();
}
public void explode() {
final int i = discardedInstances.incrementAndGet();
throw new NullPointerException("Test expected this null pointer: " + i);
}
public void race(final CountDownLatch ready, final CountDownLatch go) {
comment("ready = " + count);
ready.countDown();
try {
go.await();
comment("running = " + count);
} catch (final InterruptedException e) {
Thread.interrupted();
}
}
public void init() {
}
public void destroy() {
}
}
}