public static TopicSubscriber getTopicSubscriber(TopicConnection cnn, String topicName)
throws JMSException {
TopicSession session = cnn.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
Topic topic = session.createTopic(topicName);
TopicSubscriber receiver = session.createSubscriber(topic);
return receiver;
}
public void onMessage(Message message) {
try {
MapMessage request = (MapMessage) message;
String correlationID = request.getJMSCorrelationID();
int itemId = request.getInt("itemId");
// Retrieve the connection factory
connectionFactory =
(TopicConnectionFactory) initialContext.lookup(BeanConfig.TopicConnectionFactoryName);
// get the bids history
String html = getBidHistory(itemId);
// send the reply
TemporaryTopic temporaryTopic = (TemporaryTopic) request.getJMSReplyTo();
if (temporaryTopic != null) {
// create a connection
connection = connectionFactory.createTopicConnection();
// create a session: no transaction, auto ack
session = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
TextMessage reply = session.createTextMessage();
reply.setJMSCorrelationID(correlationID);
reply.setText(html);
replier = session.createPublisher(null); // unidentified publisher
connection.start();
replier.publish(temporaryTopic, reply);
replier.close();
session.close();
connection.stop();
connection.close();
}
} catch (Exception e) {
throw new EJBException("Message traitment failed for MDB_ViewBidHistory: " + e);
}
}
private void writeMessage(String s) throws JMSException {
TextMessage message = session.createTextMessage();
message.setStringProperty("language", "java");
message.setText(s);
System.out.println("sending text message " + message);
pub.publish(message);
}
public static void drainTopic(TopicConnection cnn, String topic) throws Exception {
TopicSession session = cnn.createTopicSession(false, Session.DUPS_OK_ACKNOWLEDGE);
Topic t = session.createTopic(topic);
TopicSubscriber subscriber = session.createSubscriber(t);
Message msg = subscriber.receiveNoWait();
while (msg != null) {
try {
msg.acknowledge();
} catch (JMSException e) {
}
msg = subscriber.receiveNoWait();
}
subscriber.close();
session.close();
}
public void stop() {
try {
session.close();
} catch (JMSException e) {
e.printStackTrace();
}
try {
conn.close();
} catch (JMSException e) {
e.printStackTrace();
}
}
public ChatPublisher(String name, String topicName, boolean isDurable) throws JMSException {
this.name = name;
TopicConnectionFactory factory = new ActiveMQConnectionFactory("tcp://127.0.0.1:61616");
conn = factory.createTopicConnection();
session = conn.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
pub = session.createPublisher(new ActiveMQTopic(topicName));
if (isDurable) {
pub.setDeliveryMode(DeliveryMode.PERSISTENT);
// pub.setTimeToLive(20000);
System.out.println(" === persistence == ");
}
}
public static void topicPublish(
TopicConnection cnn,
String topicName,
String payload,
boolean transacted,
int ack,
String replyTo)
throws JMSException {
TopicSession session = cnn.createTopicSession(transacted, ack);
Topic topic = session.createTopic(topicName);
TopicPublisher publisher = session.createPublisher(topic);
TextMessage msg = session.createTextMessage();
msg.setText(payload);
msg.setJMSDeliveryMode(ack);
if (replyTo != null) {
msg.setJMSReplyTo(session.createTopic(replyTo));
}
publisher.publish(msg);
publisher.close();
session.close();
}
public tibjmsLoadBalancedTopicPublisher(String[] args) {
parseArgs(args);
/* print parameters */
System.out.println(
"\n------------------------------------------------------------------------");
System.out.println("tibjmsLoadBalancedTopicPublisher SAMPLE");
System.out.println("------------------------------------------------------------------------");
System.out.println("Servers...................... " + serverList);
System.out.println("User......................... " + (userName != null ? userName : "******"));
System.out.println("Topic........................ " + topicName);
System.out.println("Messages..................... " + messages);
System.out.println("Delay........................ " + delay);
System.out.println(
"------------------------------------------------------------------------\n");
System.err.println("Publishing on topic '" + topicName + "'\n");
try {
HashMap properties = new HashMap();
Integer metric;
if (balanceByConnections)
metric = new Integer(Tibjms.FACTORY_LOAD_BALANCE_METRIC_CONNECTIONS);
else metric = new Integer(Tibjms.FACTORY_LOAD_BALANCE_METRIC_BYTE_RATE);
properties.put(Tibjms.FACTORY_LOAD_BALANCE_METRIC, metric);
TopicConnectionFactory factory =
new com.tibco.tibjms.TibjmsTopicConnectionFactory(serverList, null, properties);
TopicConnection connection = factory.createTopicConnection(userName, password);
TopicSession session =
connection.createTopicSession(false, javax.jms.Session.AUTO_ACKNOWLEDGE);
/*
* Use createTopic() to enable publishing into dynamic topics.
*/
javax.jms.Topic topic = session.createTopic(topicName);
TopicPublisher publisher = session.createPublisher(topic);
/* publish messages */
for (int i = 0; i < messages; i++) {
javax.jms.TextMessage message = session.createTextMessage();
String text = "Load balanced message " + i;
message.setText(text);
publisher.publish(message);
System.err.println(
"Published message " + i + " to server " + Tibjms.getConnectionActiveURL(connection));
try {
Thread.sleep(delay * 1000);
} catch (InterruptedException e) {
}
}
connection.close();
} catch (JMSException e) {
e.printStackTrace();
System.exit(0);
}
}
public tibjmsTopicSubscriber(String[] args) {
parseArgs(args);
/* print parameters */
System.err.println(
"\n------------------------------------------------------------------------");
System.err.println("tibjmsTopicSubscriber SAMPLE");
System.err.println("------------------------------------------------------------------------");
System.err.println(
"Server....................... " + ((serverUrl != null) ? serverUrl : "localhost"));
System.err.println(
"User......................... " + ((userName != null) ? userName : "******"));
System.err.println("Topic........................ " + topicName);
System.err.println(
"------------------------------------------------------------------------\n");
try {
tibjmsUtilities.initSSLParams(serverUrl, args);
} catch (JMSSecurityException e) {
System.err.println(
"JMSSecurityException: " + e.getMessage() + ", provider=" + e.getErrorCode());
e.printStackTrace();
System.exit(0);
}
if (topicName == null) {
System.err.println("Error: must specify topic name");
usage();
}
System.err.println("Subscribing to topic: " + topicName);
try {
TopicConnectionFactory factory = new com.tibco.tibjms.TibjmsTopicConnectionFactory(serverUrl);
TopicConnection connection = factory.createTopicConnection(userName, password);
TopicSession session =
connection.createTopicSession(false, javax.jms.Session.AUTO_ACKNOWLEDGE);
/*
* Use createTopic() to enable subscriptions to dynamic topics.
*/
javax.jms.Topic topic = session.createTopic(topicName);
TopicSubscriber subscriber = session.createSubscriber(topic);
connection.start();
/* read topic messages */
while (true) {
javax.jms.Message message = subscriber.receive();
if (message == null) break;
System.err.println("Received message: " + message);
}
connection.close();
} catch (JMSException e) {
System.err.println("JMSException: " + e.getMessage() + ", provider=" + e.getErrorCode());
e.printStackTrace();
System.exit(0);
}
}
