@Test
public void testCreateDurableQueueUsingJMSAndRestartServer() throws Exception {
String queueName = RandomUtil.randomString();
String binding = RandomUtil.randomString();
ActiveMQTestBase.checkNoBinding(context, binding);
checkNoResource(ObjectNameBuilder.DEFAULT.getJMSQueueObjectName(queueName));
TransportConfiguration config =
new TransportConfiguration(InVMConnectorFactory.class.getName());
Connection connection =
ActiveMQJMSClient.createConnectionFactoryWithoutHA(JMSFactoryType.CF, config)
.createConnection();
connection.start();
Queue managementQueue = ActiveMQJMSClient.createQueue("activemq.management");
QueueSession session = (QueueSession) connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
QueueRequestor requestor = new QueueRequestor(session, managementQueue);
Message message = session.createMessage();
JMSManagementHelper.putOperationInvocation(
message, "jms.server", "createQueue", queueName, binding);
Message reply = requestor.request(message);
Assert.assertTrue(JMSManagementHelper.hasOperationSucceeded(reply));
connection.close();
Object o = ActiveMQTestBase.checkBinding(context, binding);
Assert.assertTrue(o instanceof Queue);
Queue queue = (Queue) o;
Assert.assertEquals(queueName, queue.getQueueName());
checkResource(ObjectNameBuilder.DEFAULT.getJMSQueueObjectName(queueName));
serverManager.stop();
ActiveMQTestBase.checkNoBinding(context, binding);
checkNoResource(ObjectNameBuilder.DEFAULT.getJMSQueueObjectName(queueName));
serverManager = createJMSServer();
serverManager.start();
o = ActiveMQTestBase.checkBinding(context, binding);
Assert.assertTrue(o instanceof Queue);
queue = (Queue) o;
Assert.assertEquals(queueName, queue.getQueueName());
checkResource(ObjectNameBuilder.DEFAULT.getJMSQueueObjectName(queueName));
}
public void send(ExampleCommand command, String queueName, String filter)
throws JMSException, IOException {
try (Session session = connection.createSession()) {
Message message;
if (binaryMode) {
message = session.createBytesMessage();
((BytesMessage) message).writeBytes(command.toBytes());
} else {
message = session.createTextMessage(command.toXml());
}
if (filter != null && !blank(filter)) {
String[] parts = filter.split("\\s*=\\s*");
message.setStringProperty(parts[0], parts[1]);
}
try (MessageProducer p = session.createProducer(ActiveMQJMSClient.createQueue(queueName))) {
p.send(message, DeliveryMode.PERSISTENT, 4, 0);
}
}
}
public static void main(final String[] args) throws Exception {
Connection connection0 = null;
Connection connection1 = null;
Connection connection2 = null;
Connection connection3 = null;
Connection connection4 = null;
Connection connection5 = null;
try {
// Step 1 - We instantiate a connection factory directly, specifying the UDP address and port
// for discovering
// the list of servers in the cluster.
// We could use JNDI to look-up a connection factory, but we'd need to know the JNDI server
// host and port for
// the
// specific server to do that, and that server might not be available at the time. By creating
// the
// connection factory directly we avoid having to worry about a JNDI look-up.
// In an app server environment you could use HA-JNDI to lookup from the clustered JNDI
// servers without
// having to know about a specific one.
UDPBroadcastEndpointFactory udpCfg = new UDPBroadcastEndpointFactory();
udpCfg.setGroupAddress("231.7.7.7").setGroupPort(9876);
DiscoveryGroupConfiguration groupConfiguration = new DiscoveryGroupConfiguration();
groupConfiguration.setBroadcastEndpointFactory(udpCfg);
ConnectionFactory cf =
ActiveMQJMSClient.createConnectionFactoryWithHA(groupConfiguration, JMSFactoryType.CF);
// We give a little while for each server to broadcast its whereabouts to the client
Thread.sleep(2000);
// Step 2. Directly instantiate JMS Queue and Topic objects
Queue queue = ActiveMQJMSClient.createQueue("exampleQueue");
Topic topic = ActiveMQJMSClient.createTopic("exampleTopic");
// Step 3. We create six connections, they should be to different nodes of the cluster in a
// round-robin fashion
// and start them
connection0 = cf.createConnection();
connection1 = cf.createConnection();
connection2 = cf.createConnection();
connection3 = cf.createConnection();
connection4 = cf.createConnection();
connection5 = cf.createConnection();
connection0.start();
connection1.start();
connection2.start();
connection3.start();
connection4.start();
connection5.start();
// Step 4. We create a session on each connection
Session session0 = connection0.createSession(false, Session.AUTO_ACKNOWLEDGE);
Session session1 = connection1.createSession(false, Session.AUTO_ACKNOWLEDGE);
Session session2 = connection2.createSession(false, Session.AUTO_ACKNOWLEDGE);
Session session3 = connection0.createSession(false, Session.AUTO_ACKNOWLEDGE);
Session session4 = connection1.createSession(false, Session.AUTO_ACKNOWLEDGE);
Session session5 = connection2.createSession(false, Session.AUTO_ACKNOWLEDGE);
// Step 5. We create a topic subscriber on each server
MessageConsumer subscriber0 = session0.createConsumer(topic);
MessageConsumer subscriber1 = session1.createConsumer(topic);
MessageConsumer subscriber2 = session2.createConsumer(topic);
MessageConsumer subscriber3 = session3.createConsumer(topic);
MessageConsumer subscriber4 = session4.createConsumer(topic);
MessageConsumer subscriber5 = session5.createConsumer(topic);
// Step 6. We create a queue consumer on server 0
MessageConsumer consumer0 = session0.createConsumer(queue);
// Step 7. We create an anonymous message producer on just one server 2
MessageProducer producer2 = session2.createProducer(null);
// Step 8. We send 500 messages each to the queue and topic
final int numMessages = 500;
for (int i = 0; i < numMessages; i++) {
TextMessage message1 = session2.createTextMessage("Topic message " + i);
producer2.send(topic, message1);
TextMessage message2 = session2.createTextMessage("Queue message " + i);
producer2.send(queue, message2);
}
// Step 9. Verify all subscribers and the consumer receive the messages
for (int i = 0; i < numMessages; i++) {
TextMessage received0 = (TextMessage) subscriber0.receive(5000);
if (received0 == null) {
throw new IllegalStateException("Message is null!");
}
TextMessage received1 = (TextMessage) subscriber1.receive(5000);
if (received1 == null) {
throw new IllegalStateException("Message is null!");
}
TextMessage received2 = (TextMessage) subscriber2.receive(5000);
if (received2 == null) {
throw new IllegalStateException("Message is null!");
}
TextMessage received3 = (TextMessage) subscriber3.receive(5000);
if (received3 == null) {
throw new IllegalStateException("Message is null!");
}
TextMessage received4 = (TextMessage) subscriber4.receive(5000);
if (received4 == null) {
throw new IllegalStateException("Message is null!");
}
TextMessage received5 = (TextMessage) subscriber5.receive(5000);
if (received5 == null) {
throw new IllegalStateException("Message is null!");
}
TextMessage received6 = (TextMessage) consumer0.receive(5000);
if (received6 == null) {
throw new IllegalStateException("Message is null!");
}
}
} finally {
// Step 15. Be sure to close our resources!
connection0.close();
connection1.close();
connection2.close();
connection3.close();
connection4.close();
connection5.close();
}
}