I'm developing a messaging system with using ActiveMQ and Play Framework v2.4.2 (Java version) to send emails to end users. I'm newbie at JMS/ActiveMQ techs. I just used this Hello World example at ActiveMQ site as an start point.
I created a test class as below to test running ActiveMQ with Play Framework and everything was ok:
public class ActiveMQMailApp {
public static void main(String[] args) throws Exception {
setup();
MailConsumer.initService();
for (int i =0;i<11;i++) MailProducer.sendMail(fakeMail());
}
public static void setup(){
FakeApplication fakeApplication = Helpers.fakeApplication();
Helpers.start(fakeApplication);
}
private static Mail fakeMail() throws InterruptedException {
Thread.sleep(1000);
SimpleDateFormat sdf = new SimpleDateFormat("YYYY-MM-dd hh:mm:ss");
return new Mail( "noreply@abc.com", "receiver@gmail.com", "A Test Email", "<html><body><p>Date: <b> "+sdf.format(new Date())+" </b></p></body></html>");
}
}
But when I use this exact code in main app, this exception thrown:
javax.jms.JMSException: Could not create Transport. Reason: java.lang.RuntimeException: Fatally failed to create SystemUsageorg/apache/activemq/protobuf/BufferInputStream
at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:36)
at org.apache.activemq.ActiveMQConnectionFactory.createTransport(ActiveMQConnectionFactory.java:332)
at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:345)
at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:303)
at org.apache.activemq.ActiveMQConnectionFactory.createConnection(ActiveMQConnectionFactory.java:243)
at ir.iais.salary.services.MailProducer.run(MailProducer.java:35)
Caused by: java.lang.RuntimeException: Fatally failed to create SystemUsageorg/apache/activemq/protobuf/BufferInputStream
at org.apache.activemq.broker.BrokerService.getSystemUsage(BrokerService.java:1159)
... 5 more
Caused by: java.io.IOException: org/apache/activemq/protobuf/BufferInputStream
at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:39)
... 11 more
Caused by: java.lang.NoClassDefFoundError: org/apache/activemq/protobuf/BufferInputStream
at org.apache.activemq.store.kahadb.KahaDBPersistenceAdapter.<init>(KahaDBPersistenceAdapter.java:65)
... 13 more
Caused by: java.lang.ClassNotFoundException: org.apache.activemq.protobuf.BufferInputStream
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
My MailProducer and MailConsumer classes are like these:
public class MailProducer implements Runnable{
public static final String AMQ_MAIL_QUEUE = "MAIL";
public static final String BROKER_URL = "vm://localhost?broker.useJmx=false&persistent=false";
private Mail mail;
public MailProducer(Mail mail) {
this.mail = mail;
}
public static void sendMail(Mail mail){
Thread brokerThread = new Thread(new MailProducer(mail));
brokerThread.setDaemon(false);
brokerThread.start();
}
@Override
public void run() {
try {
// Create a ConnectionFactory
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(BROKER_URL);
// Create a Connection
Connection connection = connectionFactory.createConnection();
connection.start();
// Create a Session
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
// Create the destination (Topic or Queue)
Destination destination = session.createQueue(AMQ_MAIL_QUEUE);
// Create a MessageProducer from the Session to the Topic or Queue
MessageProducer producer = session.createProducer(destination);
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
// Create a messages
TextMessage textMessage = session.createTextMessage(new Gson().toJson(mail));
// Tell the producer to send the message
System.out.println("Sent message: "+ new Gson().toJson(mail) + " : " + Thread.currentThread().getName());
producer.send(textMessage);
// Clean up
session.close();
connection.close();
}
catch (Exception e) {
System.out.println("Caught: " + e);
e.printStackTrace();
}
}
}
public class MailConsumer implements Runnable, ExceptionListener {
private static final Logger logger = getLogger(MailConsumer.class);
private static Thread mailConsumerService;
public static synchronized void initService() {
MailConsumer mailConsumer = Play.application().injector().instanceOf(MailConsumer.class);
if (mailConsumerService != null) {
logger.info("STOPPING MailConsumer thread.");
mailConsumerService.interrupt();
}
logger.info("Starting MailConsumer thread.");
mailConsumerService = new Thread(mailConsumer);
mailConsumerService.setDaemon(true);
mailConsumerService.setName("MailConsumer Service");
mailConsumerService.start();
logger.info("MailConsumer thread started.");
}
@Inject
private MailerClient mailerClient;
@Override
public void run() {
try {
// Create a ConnectionFactory
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(MailProducer.BROKER_URL);
// Create a Connection
Connection connection = connectionFactory.createConnection();
connection.start();
connection.setExceptionListener(this);
// Create a Session
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
// Create the destination (Topic or Queue)
Destination destination = session.createQueue(MailProducer.AMQ_MAIL_QUEUE);
// Create a MessageConsumer from the Session to the Topic or Queue
MessageConsumer consumer = session.createConsumer(destination);
while (!Thread.currentThread().isInterrupted()) {
// Wait for a message
Message message = consumer.receive();
if (message instanceof TextMessage) {
TextMessage textMessage = (TextMessage) message;
String text = textMessage.getText();
System.out.println("Received: " + text);
Mail mail = new Gson().fromJson(text, Mail.class);
Email email = new Email();
email.setFrom(mail.getFrom());
email.setTo(mail.getTo());
email.setSubject(mail.getSubject());
email.setBodyHtml(mail.getBodyHtml());
System.out.println("sending email...");
mailerClient.send(email);
System.out.println("email sent!");
} else {
System.out.println("Received: " + message);
logger.info("message type: "+message.getClass().getSimpleName());
}
}
logger.info("MailConsumer interrupted.");
consumer.close();
session.close();
connection.close();
} catch (Exception e) {
if (e instanceof InterruptedException) {
logger.info("MailConsumer thread interrupted.");
} else {
logger.error(e.getLocalizedMessage(), e);
}
}
}
public synchronized void onException(JMSException ex) {
System.out.println("JMS Exception occured. Shutting down client.");
logger.error("ErrorCode=" + ex.getErrorCode() + " , " + ex.getMessage(), ex);
}
}
I call MailProducer in main app like this:
public Result sendTestMail(){
if(!DevStatus.gI().isInDebugMode()) return badRequest("You'r not in Development Env.");
SimpleDateFormat sdf = new SimpleDateFormat("YYYY-MM-dd hh:mm:ss");
Mail mail = new Mail("noreply@abc.com", "receiver@gmail.com", "A Test Email", "<html><body><p>Date: <b> " + sdf.format(new Date()) + " </b></p></body></html>");
MailProducer.sendMail(mail);
return ok("email sent! "+ sdf.format(new Date()));
It seems the problem is org.apache.activemq.protobuf.BufferInputStream is not in classpath. I added "org.apache.activemq.protobuf" % "activemq-protobuf" % "1.1" to build.sbt but nothing changed. I also disabled ActiveMQ persistence by adding persistent=false to broker URI but it didn't work.
What can I do? Does it even make sense to use ActiveMQ with Play Framework as a JMS? Or some better JMS is available out there to work with Play Framework? What about Akka?!!
Edit: My ActiveMQ related deps are:
"org.apache.activemq" % "activemq-broker" % "5.13.4",
"org.apache.activemq" % "activemq-client" % "5.13.4",
"org.apache.activemq" % "activemq-kahadb-store" % "5.13.4",
"org.apache.activemq.protobuf" % "activemq-protobuf" % "1.1",
Edit 2: I replaced above dependencies with "org.apache.activemq" % "activemq-all" % "5.14.0" and the main app started to work! I first thought the problem was resolved and is related to the ActiveMQ packages, but I realized the ActiveMQMailApp test class is now throwing same exception as above! I ran this test class in a new simple maven project (not play framework) and everything was ok! I'm afraid this error come back later. What is actually happening?!
