/*
* 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.timer;
import org.apache.openejb.jee.EnterpriseBean;
import org.apache.openejb.jee.SingletonBean;
import org.apache.openejb.junit.ApplicationComposer;
import org.apache.openejb.testing.Module;
import org.junit.Test;
import org.junit.runner.RunWith;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.annotation.Resource;
import javax.ejb.EJB;
import javax.ejb.Lock;
import javax.ejb.LockType;
import javax.ejb.Singleton;
import javax.ejb.Startup;
import javax.ejb.Timeout;
import javax.ejb.Timer;
import javax.ejb.TimerConfig;
import javax.ejb.TimerService;
import java.util.concurrent.atomic.AtomicInteger;
import static junit.framework.TestCase.assertTrue;
@RunWith(ApplicationComposer.class)
public class SingleActionTimerTest {
@Module
public EnterpriseBean bean() {
return new SingletonBean(SingleActionTimer.class).localBean();
}
@EJB
private SingleActionTimer bean;
@Test
public void test() throws InterruptedException {
Thread.sleep(1000);
assertTrue("TimerWithDelay: Failed to count more than once", this.bean.getCount() > 1);
}
@SuppressWarnings("UseOfSystemOutOrSystemErr")
@Singleton
@Startup
@Lock(LockType.READ)
public static class SingleActionTimer {
private static final String TIMER_NAME = "SingleActionTimer";
private final AtomicInteger counter = new AtomicInteger(0);
private Timer timer;
@Resource
private TimerService timerService;
@PostConstruct
public void postConstruct() {
try {
this.createTimer();
System.out.println("SingleActionTimer: Started initial timer");
} catch (Exception e) {
throw new RuntimeException("SingleActionTimer: Failed to start initial timer", e);
}
}
@PreDestroy
public void preDestroy() {
if (null != this.timer) {
try {
this.timer.cancel();
} catch (Throwable e) {
//Ignore
}
}
}
private void createTimer() {
try {
this.timer = this.timerService.createSingleActionTimer(100, new TimerConfig(TIMER_NAME, false));
} catch (Exception e) {
throw new RuntimeException("SingleActionTimer: Failed to create timer", e);
}
}
@Timeout
public void programmaticTimeout(final Timer timer) {
if (!TIMER_NAME.equals(timer.getInfo())) {
return;
}
final int i = this.counter.incrementAndGet();
System.out.println("SingleActionTimer: Timeout " + i);
this.createTimer();
}
public int getCount() {
return this.counter.get();
}
}
}