Using GF 3.1 here.
I have a Websphere MQ connection pool and factory defined on my GF instance using IBM's wmq.jmsra RAR.
I can publish using this simple servlet code below.
@Resource(mappedName = "jms/UTTopicFactory")
private TopicConnectionFactory topicConnectionFactory;
@Resource(mappedName = "jms/UTTopic")
private Topic topic;
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
String msgText = request.getParameter("msgText");
sendToTopic(msgText);
} catch (Exception e) {
out.print(e.toString());
}
}
private void sendToTopic(String msgText) throws Exception {
TopicConnection connection = topicConnectionFactory.createTopicConnection();
TopicSession session = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer messageProducer = session.createProducer(topic);
TextMessage textMessage = session.createTextMessage();
textMessage.setText(msgText);
messageProducer.send(textMessage, DeliveryMode.PERSISTENT, TextMessage.DEFAULT_PRIORITY, 1000);
messageProducer.send(textMessage);
messageProducer.close();
session.close();
connection.close();
}
And I read from it using this simple servlet:
@Resource(mappedName = "jms/UTTopicFactory")
private TopicConnectionFactory topicConnectionFactory;
@Resource(mappedName = "jms/UTTopic")
private Topic topic;
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
out.write("Topic response = " + readTopic());
} catch (Exception e) {
out.write("Error: " + e.getMessage());
e.printStackTrace();
} finally {
out.close();
}
}
private String readTopic() throws Exception {
String result = null;
TopicConnection connection = topicConnectionFactory.createTopicConnection();
TopicSession session = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
TopicSubscriber subscriber = session.createDurableSubscriber(topic, "SEAN.TEST");
connection.start();
TextMessage textMessage = (TextMessage) subscriber.receive(10000);
if (textMessage != null) {
System.out.println("Got " + textMessage.getText());
result = "Retrieved message from topic: " + textMessage.getText();
textMessage.acknowledge();
} else {
System.out.println("No messages in topic");
result = "No messages in topic";
}
subscriber.close();
session.close();
connection.close();
return result;
}
My (possibly dumb) question is how do I create a MDB that talks to the topic in the same way as the servlet above – by just referencing the JNDI name. Tried this:
@MessageDriven(mappedName = "jms/UTTopic", activationConfig = {
@ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"),
@ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Topic"),
@ActivationConfigProperty(propertyName = "subscriptionDurability", propertyValue = "Durable"),
@ActivationConfigProperty(propertyName = "clientId", propertyValue = "MyMDB"),
@ActivationConfigProperty(propertyName = "subscriptionName", propertyValue = "SEAN.TEST")
})
public class MyMDB implements MessageListener {
public MyMDB() {
}
@Override
public void onMessage(Message message) {
}
}
But this won't deploy properly – yields:
SEVERE: Exception while loading the app : EJB Container initialization error
com.sun.appserv.connectors.internal.api.ConnectorRuntimeException: Could not find physical destination : null
at com.sun.enterprise.connectors.jms.system.ActiveJmsResourceAdapter.getPhysicalDestinationFromConfiguration(ActiveJmsResourceAdapter.java:2068)
at com.sun.enterprise.connectors.jms.system.ActiveJmsResourceAdapter.updateMDBRuntimeInfo(ActiveJmsResourceAdapter.java:1864)
at com.sun.enterprise.connectors.inbound.ConnectorMessageBeanClient.setup(ConnectorMessageBeanClient.java:186)
at com.sun.ejb.containers.MessageBeanContainer.<init>(MessageBeanContainer.java:205)
at com.sun.ejb.containers.ContainerFactoryImpl.createContainer(ContainerFactoryImpl.java:121)
at org.glassfish.ejb.startup.EjbApplication.loadContainers(EjbApplication.java:230)
at org.glassfish.ejb.startup.EjbDeployer.load(EjbDeployer.java:290)
at org.glassfish.ejb.startup.EjbDeployer.load(EjbDeployer.java:101)
at org.glassfish.internal.data.ModuleInfo.load(ModuleInfo.java:186)
at org.glassfish.internal.data.ApplicationInfo.load(ApplicationInfo.java:257)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:382)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:355)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:370)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1064)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:96)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1244)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1232)
at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:459)
at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:209)
at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:168)
at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:238)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:680)
Bear in mind the topic here is an EXTERNAL topic being provided by the web sphere MQ resource adapter.
Any help?
---
Sean Comerford
ESPN.com Architecture & Platforms