/*
* 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.sirona.jta;
import org.apache.sirona.gauges.Gauge;
import org.apache.sirona.repositories.Repository;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import javax.ejb.EJB;
import javax.ejb.Lock;
import javax.ejb.LockType;
import javax.ejb.Singleton;
import javax.ejb.embeddable.EJBContainer;
import java.util.Collection;
import java.util.Properties;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import static org.junit.Assert.assertEquals;
public class GaugesTest {
private static final int ITERATIONS = 500;
private static Gauge.LoaderHelper gaugeLoader;
@BeforeClass
public static void init() {
Repository.INSTANCE.clearCounters();
gaugeLoader = new Gauge.LoaderHelper(false);
}
@AfterClass
public static void reset() {
Repository.INSTANCE.clearCounters();
gaugeLoader.destroy();
}
@EJB
private EjbWithJTASupport jtaSupport;
@Test
public void test() throws Exception {
final EJBContainer container = EJBContainer.createEJBContainer(new Properties() {{
setProperty("openejb.jul.forceReload", Boolean.TRUE.toString());
setProperty("logging.level.OpenEJB", "OFF"); // logging will make the test failling just cause System.out takes time
}});
container.getContext().bind("inject", this);
final long start = System.currentTimeMillis();
final CountDownLatch latch = new CountDownLatch(ITERATIONS);
try {
final ExecutorService es = Executors.newFixedThreadPool(50);
for (int i = 0; i < ITERATIONS; i++) {
es.submit(new Runnable() {
@Override
public void run() {
try {
jtaSupport.commit();
} catch (final Exception e) {
e.printStackTrace(System.out);
}
try {
jtaSupport.rollback();
} finally {
latch.countDown();
}
}
});
}
es.shutdown();
latch.await();
Thread.sleep(500); // wait last measure
final long end = System.currentTimeMillis();
assertEquals(ITERATIONS, sum(Repository.INSTANCE.getGaugeValues(start, end, JTAGauges.JTA_COMMITED).values()), 0);
assertEquals(ITERATIONS, sum(Repository.INSTANCE.getGaugeValues(start, end, JTAGauges.JTA_ROLLBACKED).values()), 0);
// due to the sleep we use in commit() we only see half of the tx when checking actives
assertEquals(ITERATIONS / 2, sum(Repository.INSTANCE.getGaugeValues(start, end, JTAGauges.JTA_ACTIVE).values()), ITERATIONS * .1);
} finally {
container.close();
}
}
private static double sum(final Collection<Double> values) {
double sum = 0;
for (final Double d : values) {
sum += d;
}
return sum;
}
@Singleton
@Lock(LockType.READ)
@JTAMonitored
public static class EjbWithJTASupport {
public void commit() {
try {
Thread.sleep(50);
} catch (final InterruptedException e) {
// no-op
}
}
public void rollback() {
throw new NullPointerException();
}
}
}