I want to write generic code for sending message on any jms server. so for that i thought if i have jndi.properties file then we can place server configuration in this file and we can access this file through the code but i am able to do this only for 'ActiveMQ Server'. Now i am facing problems to send the message on any other server like glassfish server or jboss server. can somebody help me to do this task.
Here is my code :
public class Producer
{
public Producer() throws JMSException, NamingException,IOException
{
InputStream is = getClass().getResourceAsStream("my.jndi.properties");
Properties jndiParamaters = new Properties();
jndiParamaters.load(is);
Context jndi = new InitialContext(jndiParamaters);
ConnectionFactory conFactory = (ConnectionFactory) jndi.lookup("connectionFactory");
Connection connection;
connection = conFactory.createConnection();
try
{
connection.start();
Session session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE);
Destination destination = (Destination) jndi.lookup("Myqueue");
MessageProducer producer = session.createProducer(destination);
TextMessage message = session.createTextMessage("Hello World!");
producer.send(message);
System.out.println("Sent message '" + message.getText() + "'");
}
finally
{
connection.close();
}
}
public static void main(String[] args) throws JMSException
{
try
{
BasicConfigurator.configure();
new Producer();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
thanks
Have you tried using the Spring JMS Template? http://static.springsource.org/spring/docs/2.0.x/reference/jms.html
It provides an abstraction layer to JMS and could probably help you when your implementation changes.
Related
I am connecting to JMS queue using t3 protocol using DefaultMessageListenerContainer and it is working fine if the t3 protocol is UP.
But If the t3 URL is down, then the Listener cannot re-register the Bean once the t3 URL is UP. I have override the Listener to make a call but not able to re-register the Bean after application started.
#Bean
public QueueConnectionFactory queueConnectionFactory() {
Context m_context = getInitialContext();
QueueConnectionFactory queueConnectionFactory = new JMSConnectionFactory();
try {
System.out.println("Connection Factory");
queueConnectionFactory = (QueueConnectionFactory) m_context
.lookup("myconnectionfactory");
} catch (Exception e) {
System.err.println("Exception Connection Factory goes down");
}
return queueConnectionFactory;
}
#Bean
public Context getInitialContext() {
try {
Properties h = new Properties();
System.out.println("getInitialContext ");
h.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
h.put(Context.PROVIDER_URL, "t3://100.21.101.12:7001");
return new InitialContext(h);
} catch (Exception e) {
System.error.println("Error at getInitialContext");
}
return null;
}
#Bean
public Queue jmsQueue() {
Context m_context = getInitialContext();
Queue jmsQueue = new MQQueue();
try {
System.out.println("jmsQueue ");
jmsQueue = (Queue) m_context.lookup("myqueue");
} catch (Exception e) {
System.error.println("Error at JMS");
}
return jmsQueue;
}
#Bean
public DefaultMessageListenerContainer messageListener() {
DefaultMessageListenerContainer listener = new DefaultMessageListenerContainer();
try {
System.out.println("messageListener ");
listener.setConcurrentConsumers("4");
listener.setConnectionFactory((ConnectionFactory) queueConnectionFactory());
listener.setDestination((Destination) jmsQueue());
listener.setMessageListener(queueListener());
} catch (Exception e) {
System.out.println("Exception >>"+e);
}
return listener;
}
2022-08-05 15:16:24.615 ERROR 56480 --- [ssageListener-5] .b.e.s.DefaultMessageListenerContainer : Could not refresh JMS Connection for destination from DefaultMessageListener'queue:///' - retrying using FixedBackOff{interval=5000, currentAttempts=52, maxAttempts=unlimited}. Cause: null
Is there any way to do this bean to get register using the Listener.
That is an error from the listener container, not the registration of the connection factory bean.
You should be able to set the containers to not start automatically, using
spring.jms.listener.auto-startup=false
https://docs.spring.io/spring-boot/docs/current/reference/html/application-properties.html#application-properties.integration.spring.jms.listener.auto-startup
Then you can start them manually (in a try block) via the JmsListenerEndpointRegistry bean.
1. Context:
A two-modules/microservice application developed with SpringBoot 2.3.0 and ActiveMQ.
Also we use ActiveMQ 5.15.13 server/broker.
Broker is defined in both modules with application properties.
Also broker connection pool is defined in both modules as well with application properties and added in both modules the pooled-jms artifact dependency (with maven):
spring.activemq.broker-url=xxx
spring.activemq.user=xxx
spring.activemq.password=xx
spring.activemq.non-blocking-redelivery=true
spring.activemq.pool.enabled=true
spring.activemq.pool.time-between-expiration-check=5s
spring.activemq.pool.max-connections=10
spring.activemq.pool.max-sessions-per-connection=10
spring.activemq.pool.idle-timeout=60s
Other configurations for JMS I done are:
spring.jms.listener.acknowledge-mode=auto
spring.jms.listener.auto-startup=true
spring.jms.listener.concurrency=5
spring.jms.listener.max-concurrency=10
spring.jms.pub-sub-domain=false
spring.jms.template.priority=100
spring.jms.template.qos-enabled=true
spring.jms.template.delivery-mode=persistent
In module 1 the JmsTemplate is used to send synchronous messages (or we can name replay-messages as well). I've opted out for a proper queue instead of a temporary queue as I understand that if there are lots of messages sent than a temporary queue is not recommended to be used for replays - so that's what I did.
2. Code samples:
MODULE 1:
#Value("${app.request-video.jms.queue.name}")
private String requestVideoQueueNameAppProperty;
#Bean
public Queue requestVideoJmsQueue() {
logger.info("Initializing requestVideoJmsQueue using application property value for " +
"app.request-video.jms.queue.name=" + requestVideoQueueNameAppProperty);
return new ActiveMQQueue(requestVideoQueueNameAppProperty);
}
#Value("${app.request-video-replay.jms.queue.name}")
private String requestVideoReplayQueueNameAppProperty;
#Bean
public Queue requestVideoReplayJmsQueue() {
logger.info("Initializing requestVideoReplayJmsQueue using application property value for " +
"app.request-video-replay.jms.queue.name=" + requestVideoReplayQueueNameAppProperty);
return new ActiveMQQueue(requestVideoReplayQueueNameAppProperty);
}
#Autowired
private JmsTemplate jmsTemplate;
public Message callSendAndReceive(TextJMSMessageDTO messageDTO, Destination jmsDestination, Destination jmsReplay) {
return jmsTemplate.sendAndReceive(jmsDestination, jmsSession -> {
try {
TextMessage textMessage = jmsSession.createTextMessage();
textMessage.setText(messageDTO.getText());
textMessage.setJMSReplyTo(jmsReplay);
textMessage.setJMSCorrelationID(UUID.randomUUID().toString());
textMessage.setJMSDeliveryMode(DeliveryMode.NON_PERSISTENT);
return textMessage;
} catch (IOException e) {
logger.error("Error sending JMS message to destination: " + jmsDestination, e);
throw new JMSException("Error sending JMS message to destination: " + jmsDestination);
}
});
}
MODULE 2:
#JmsListener(destination = "${app.backend-get-request-video.jms.queue.name}")
public void onBackendGetRequestsVideoMessage(TextMessage message, Session session) throws JMSException, IOException {
logger.info("Get requests video file message consumed!");
try {
Object replayObject = handleReplayAction(message);
JMSMessageDTO messageDTO = messageDTOFactory.getJMSMessageDTO(replayObject);
Message replayMessage = messageFactory.getJMSMessage(messageDTO, session);
BytesMessage replayBytesMessage = jmsSession.createBytesMessage();
fillByteMessageFromMediaDTO(replayBytesMessage, mediaMessageDTO);
replayBytesMessage.setJMSCorrelationID(message.getJMSCorrelationID());
final MessageProducer producer = session.createProducer(message.getJMSReplyTo());
producer.send(replayBytesMessage);
JmsUtils.closeMessageProducer(producer);
} catch (JMSException | IOException e) {
logger.error("onBackendGetRequestsVideoMessage()JMSException: " + e.getMessage(), e);
throw e;
}
}
private void fillByteMessageFromMediaDTO(BytesMessage bytesMessage, MediaJMSMessageDTO mediaMessageDTO)
throws IOException, JMSException {
String filePath = fileStorageConfiguration.getMediaFilePath(mediaMessageDTO);
FileInputStream fileInputStream = null;
try (FileInputStream fileInputStream = new FileInputStream(filePath)) {
byte[] byteBuffer = new byte[1024];
int bytes_read = 0;
while ((bytes_read = fileInputStream.read(byteBuffer)) != -1) {
bytesMessage.writeBytes(byteBuffer, 0, bytes_read);
}
} catch (JMSException e) {
logger.error("Can not write data in JMS ByteMessage from file: " + fileName, e);
} catch (FileNotFoundException e) {
logger.error("Can not open stream to file: " + fileName, e);
} catch (IOException e) {
logger.error("Can not read data from file: " + fileName, e);
}
}
3. The problem:
As I send many messages and receive many corresponding replays through producer/comsumer/JmsTamplate both application modules 1 and 2 are fast-filling the heap memory allocated until an out-of-memory error is thrown, but the memory leak appears only when using synchronous messages with replay as shown above.
I've debugged my code and all instances (session, producers, consumers, jmsTamplate, etc) are pooled and have instances of the right classes from pooled-jms library; so pool should - apparently - work properly.
I've made a heap dump of the second module and looks like producers messages (ActiveMQBytesMessage) are still in memory even long time after have been successfully consumed by the right consumer.
I have asynchronous messages sent as well in my modules and seams that those messages producer-consumer works well; the problem is present only for the synch/replay messages producer-consumer.
Sample heap dump files - taken after full night of application inactivity - as following:
module 1
module_1_dump
module 2
module_2_dump
activemq broker/server
activemq_dump
Anyone have any idea what I'm doing wrong?!
I'm trying to move away from Weblogic to JBoss, and as such I'm trying to implement the things I was able to implement on Weblogic on JBoss.
One of those things is our notification system where the client sends a request to an MDB and the MDB sends a reply back to the client.
This was a breeze in Weblogic, but on Jboss, nothing seems to work. I keep getting this error:
javax.jms.InvalidDestinationException: Not an ActiveMQ Artemis Destination:ActiveMQTemporaryQueue[da00b1a2-114d-4be9-930d-926fc20c2fce]
Is there something I need to configure on my Jboss?
EDIT
I realise that I probably didn't phrase the question very well.
What happens is this: I have a client and a server MDB (message driven bean). The client sends a message to a queue and waits for a response from the server. The server picks the message from the queue and sends a response to the client, which the client picks up and displays.
On Jboss, messages from the client go smoothly, and the server picks it up, but as soon as the server MDB tries to send a response to the client, that error is thrown.
My client code (excerpt):
int TIME_OUT = 60000;
//prepare factory
Properties prop = new Properties();
prop.setProperty("java.naming.factory.initial", "org.jboss.naming.remote.client.InitialContextFactory");
prop.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces");
prop.setProperty("java.naming.provider.url", "http-remoting://remotehost:8080");
prop.setProperty("java.naming.security.principal", "guest-user")
prop.setProperty("java.naming.security.credentials", "Password#1")
String queueConnectionFactory = "jms/RemoteConnectionFactory";
Context context = new InitialContext(prop);
QueueConnectionFactory qconFactory = (QueueConnectionFactory) context.lookup(queueConnectionFactory);
//prepare queue and sessions
QueueConnection qcon = qconFactory.createQueueConnection(prop.getProperty("java.naming.security.principal"), prop.getProperty("java.naming.security.credentials"));
QueueSession qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = (Queue) context.lookup("jms/TestQueue2");
//create message
NotificationWrapper wrapper = //object initialised with something
ObjectMessage om = qsession.createObjectMessage(wrapper);//NotificationWrapper wrapper
//create producer
MessageProducer producer = qsession.createProducer(queue);
//create temporary queue
TemporaryQueue tempqueue = qsession.createTemporaryQueue();
om.setJMSReplyTo(tempqueue);
//start connection
qcon.start();
//send message and wait for response
producer.send(om);
MessageConsumer consumer = qsession.createConsumer(tempqueue);
Message callback = consumer.receive(TIME_OUT);
//print message from server
if (callback != null) {
System.out.println("Response received from server. Print here...");
//message from server
} else {
System.out.println("No Response received from server. Problems!!!");
}
//close all connections
if (consumer != null) {
consumer.close();
}
if (producer != null) {
producer.close();
}
if (qsession != null) {
qsession.close();
}
if (qcon != null) {
qcon.close();
}
My Server code (excerpt):
#MessageDriven(mappedName = "TestQueue2", activationConfig = {
#ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
#ActivationConfigProperty(propertyName = "destination", propertyValue = "jms/TestQueue2"),
#ActivationConfigProperty(propertyName = "maxSession", propertyValue = "10")
})
public class ServerSide implements MessageListener {
private static final QueueConfigProperties queueConfigProp = QueueConfigProperties.getInstance();
private Context context;
private QueueConnectionFactory qconFactory;
private QueueConnection qcon;
private QueueSession qsession;
private MessageProducer producer;
public ServerSide() {
try {
initialiseQueueFactory("jms/RemoteConnectionFactory");
//initialiseQueueFactory("jms/GreenpoleConnectionFactory");
prepareResponseQueue();
Properties prop = new Properties();
prop.setProperty("java.naming.factory.initial", "org.jboss.naming.remote.client.InitialContextFactory");
prop.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces");
prop.setProperty("java.naming.provider.url", "http-remoting://remotehost:8080");
prop.setProperty("java.naming.security.principal", "guest-user")
prop.setProperty("java.naming.security.credentials", "Password#1")
String queueConnectionFactory = "jms/RemoteConnectionFactory";
Context context = new InitialContext(prop);
QueueConnectionFactory qconFactory = (QueueConnectionFactory) context.lookup(queueConnectionFactory);
qcon = qconFactory.createQueueConnection(queueConfigProp.getProperty("java.naming.security.principal"), queueConfigProp.getProperty("java.naming.security.credentials"));
qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
} catch (NamingException | ConfigNotFoundException | IOException | JMSException ex) {
//error log
}
}
#Override
public void onMessage(Message message) {
try {
if (((ObjectMessage) message).getObject() instanceof NotificationWrapper) {
//send response
if (message.getJMSReplyTo() != null) {
logger.info("sending response");
respondToSenderPositive(message);
Response resp = new Response();
resp.setRetn(0);
resp.setDesc("Notification submitted to queue.");
producer = qsession.createProducer(message.getJMSReplyTo());
producer.send(qsession.createObjectMessage(resp));
producer.send(msg_to_send);
}
} else {
//some message printed here
}
} catch (JMSException ex) {
//error logs
} catch (Exception ex) {
//error logs
}
}
}
The issue was to do with the configuration of the destination queue which is a remote queue: the client and server are both running on different JVMs. Remote Queues on Jboss are named differently from those on Weblogic.
The name of a remote queue should be something like this: java:jboss/exported/jms/TestQueue2
Refer to the JBoss documentation for a more detailed explanation on queues: https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.0/html-single/configuring_messaging/index
I have a java program I run to write messages to Mid-Tier IBM MQ's to test functionality before attaching our main programs to them. The write method looks like the following below:
private static void sendSingleMessage(ConnectionFactory connectionFactory,
String[] messages, String destination) throws Exception {
Connection connection = null;
try {
connection = connectionFactory.createConnection();
for (String payload : messages) {
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(destination);
MessageProducer producer = session.createProducer(queue);
Message msg = session.createTextMessage(payload);
System.out.println("Sending text '" + payload + "'");
producer.send(msg);
session.close();
System.out.println("Message sent");
}
} finally {
if (connection != null) {
connection.close();
}
}
}
The connectionFactory is setup before this method executes, but within that method I set the MQConncetionFactory properties(host,port,channel,queuemanager, etc...) This send method works and I can see the queue depth increasing on my IBM MQ Explorer when I call it from my main method.
When I run a similar readSingleMessage method, the code gets stuck on the consumer.receive() and never finishes executing. See below:
private static void readSingleMessage(ConnectionFactory connectionFactory,
String[] messages, String destination) throws Exception {
Connection connection = null;
try {
connection = connectionFactory.createConnection();
for (String payload : messages) {
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue(destination);
MessageConsumer consumer = session.createConsumer(queue);
System.out.println("Recieving text '" + payload + "'");
consumer.receive();
session.close();
System.out.println("Received message");
}
} finally {
if (connection != null) {
connection.close();
}
}
}
Is there anyway I can further debug this, or find why I am able to write to the queue, but unable to read a message off of it?
You have to start the JMS Connection by calling the start() method on it. You cannot receive any messages until the connection is started. This is noted in the JMS Specification and Javadoc.
As an aside, if you use the JMS 2.0 "simplified" API and create a JMSContext object (an object which is essentially a combined Connection and Session) you do not need to call start to receive messages. A consumer crated from it can be used to receive messages without being explicitly started.
Imho the following code should create a new message, which is immedeatelly fetched again. But the output is zero. Why?
public static void main(String[] args) throws JMSException, NamingException {
Properties props = new Properties();
props.setProperty(Context.INITIAL_CONTEXT_FACTORY,"org.apache.activemq.jndi.ActiveMQInitialContextFactory");
props.setProperty(Context.PROVIDER_URL,"tcp://localhost:61616");
props.setProperty("topic.MyTopic", "FOO.BAR");
// create a new intial context, which loads from jndi.properties file
Context ctx = new InitialContext(props);
// lookup the connection factory
TopicConnectionFactory factory = (TopicConnectionFactory) ctx.lookup("ConnectionFactory");
// create a new TopicConnection for pub/sub messaging
TopicConnection conn = factory.createTopicConnection();
// lookup an existing topic
Topic mytopic = (Topic) ctx.lookup("MyTopic");
// create a new TopicSession for the client
TopicSession session = conn.createTopicSession(false, TopicSession.AUTO_ACKNOWLEDGE);
// create a new publisher to produce messages
TopicPublisher publisher = session.createPublisher(mytopic);
// create a new subscriber to receive messages
TopicSubscriber subscriber = session.createSubscriber(mytopic);
subscriber.setMessageListener(new MessageListener() {
public void onMessage(Message msg) {
try {
TextMessage textMessage = (TextMessage) msg;
String txt = textMessage.getText();
System.out.println(txt);
} catch (JMSException e) {
e.printStackTrace();
}
}
});
TextMessage message = session.createTextMessage();
message.setText("Kebap: Pommes");
publisher.publish(message);
}
Okay, I found the problem. The example from the ActiveMQ website isn't that good ... but they also provide an answer for my problem.
http://activemq.apache.org/i-am-not-receiving-any-messages-what-is-wrong.html