public void onMessage(Message inMessage) {
TextMessage msg = null;
try {
if (inMessage instanceof TextMessage) {
msg = (TextMessage) inMessage;
System.out.println("MESSAGE BEAN: Message received: " + msg.getText());
long sleepTime = msg.getLongProperty("sleeptime");
System.out.println("Sleeping for : " + sleepTime + " milli seconds ");
Thread.sleep(sleepTime);
queueConnection = queueConnectionFactory.createQueueConnection();
queueSession = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
queueSender = queueSession.createSender(queue);
TextMessage message = queueSession.createTextMessage();
message.setText("REPLIED:" + msg.getText());
message.setIntProperty("replyid", msg.getIntProperty("id"));
System.out.println("Sending message: " + message.getText());
queueSender.send(message);
} else {
System.out.println("Message of wrong type: " + inMessage.getClass().getName());
}
} catch (JMSException e) {
e.printStackTrace();
} catch (Throwable te) {
te.printStackTrace();
} finally {
try {
queueSession.close();
queueConnection.close();
} catch (Exception e) {
}
}
} // onMessage
public DigitalLibraryServer() {
try {
Properties properties = new Properties();
properties.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
properties.put(Context.URL_PKG_PREFIXES, "org.jnp.interfaces");
properties.put(Context.PROVIDER_URL, "localhost");
InitialContext jndi = new InitialContext(properties);
ConnectionFactory conFactory = (ConnectionFactory) jndi.lookup("XAConnectionFactory");
connection = conFactory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
try {
counterTopic = (Topic) jndi.lookup("counterTopic");
} catch (NamingException NE1) {
System.out.println("NamingException: " + NE1 + " : Continuing anyway...");
}
if (null == counterTopic) {
counterTopic = session.createTopic("counterTopic");
jndi.bind("counterTopic", counterTopic);
}
consumer = session.createConsumer(counterTopic);
consumer.setMessageListener(this);
System.out.println("Server started waiting for client requests");
connection.start();
} catch (NamingException NE) {
System.out.println("Naming Exception: " + NE);
} catch (JMSException JMSE) {
System.out.println("JMS Exception: " + JMSE);
JMSE.printStackTrace();
}
}
public QLender(String queuecf, String requestQueue) {
try {
// Connect to the provider and get the JMS connection
Context ctx = new InitialContext();
QueueConnectionFactory qFactory = (QueueConnectionFactory) ctx.lookup(queuecf);
qConnect = qFactory.createQueueConnection();
// Create the JMS Session
qSession = qConnect.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
// Lookup the request queue
requestQ = (Queue) ctx.lookup(requestQueue);
// Now that setup is complete, start the Connection
qConnect.start();
// Create the message listener
QueueReceiver qReceiver = qSession.createReceiver(requestQ);
qReceiver.setMessageListener(this);
System.out.println("Waiting for loan requests...");
} catch (JMSException jmse) {
jmse.printStackTrace();
System.exit(1);
} catch (NamingException jne) {
jne.printStackTrace();
System.exit(1);
}
}
private void exit() {
try {
qConnect.close();
} catch (JMSException jmse) {
jmse.printStackTrace();
}
System.exit(0);
}
/**
* Wait for 'count' messages on controlQueue before continuing. Called by a publisher to make sure
* that subscribers have started before it begins publishing messages.
*
* <p>If controlQueue doesn't exist, the method throws an exception.
*
* @param prefix prefix (publisher or subscriber) to be displayed
* @param controlQueueName name of control queue
* @param count number of messages to receive
*/
public static void receiveSynchronizeMessages(String prefix, String controlQueueName, int count)
throws Exception {
QueueConnectionFactory queueConnectionFactory = null;
QueueConnection queueConnection = null;
QueueSession queueSession = null;
Queue controlQueue = null;
QueueReceiver queueReceiver = null;
try {
queueConnectionFactory = SampleUtilities.getQueueConnectionFactory();
queueConnection = queueConnectionFactory.createQueueConnection();
queueSession = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
controlQueue = getQueue(controlQueueName, queueSession);
queueConnection.start();
} catch (Exception e) {
System.out.println("Connection problem: " + e.toString());
if (queueConnection != null) {
try {
queueConnection.close();
} catch (JMSException ee) {
}
}
throw e;
}
try {
System.out.println(
prefix
+ "Receiving synchronize messages from "
+ controlQueueName
+ "; count = "
+ count);
queueReceiver = queueSession.createReceiver(controlQueue);
while (count > 0) {
queueReceiver.receive();
count--;
System.out.println(prefix + "Received synchronize message; expect " + count + " more");
}
} catch (JMSException e) {
System.out.println("Exception occurred: " + e.toString());
throw e;
} finally {
if (queueConnection != null) {
try {
queueConnection.close();
} catch (JMSException e) {
}
}
}
}
public void onMessage(Message message) {
try {
boolean accepted = false;
// Get the data from the message
MapMessage msg = (MapMessage) message;
double salary = msg.getDouble("Salary");
double loanAmt = msg.getDouble("LoanAmount");
// Determine whether to accept or decline the loan
if (loanAmt < 200000) {
accepted = (salary / loanAmt) > .25;
} else {
accepted = (salary / loanAmt) > .33;
}
System.out.println(
""
+ "Percent = "
+ (salary / loanAmt)
+ ", loan is "
+ (accepted ? "Accepted!" : "Declined"));
// Send the results back to the borrower
TextMessage tmsg = qSession.createTextMessage();
tmsg.setText(accepted ? "Accepted!" : "Declined");
// correlation
tmsg.setJMSCorrelationID(message.getJMSMessageID());
// Create the sender and send the message
qSender = qSession.createSender((Queue) message.getJMSReplyTo());
qSender.send(tmsg);
System.out.println("\nWaiting for loan requests...");
} catch (JMSException jmse) {
jmse.printStackTrace();
System.exit(1);
} catch (Exception jmse) {
jmse.printStackTrace();
System.exit(1);
}
}
public void onMessage(Message message) {
try {
boolean accepted = false;
// Get the data from the message
MapMessage msg = (MapMessage) message;
double salary = msg.getDouble("Salary");
double expAmt = msg.getDouble("Years’ experience");
// Determine whether to accept or decline the loan
if (expAmt < 200000) {
accepted = (salary / expAmt) > .25;
} else {
accepted = (salary / expAmt) > .33;
}
if (salary <= 32000) {
accepted = true;
} else {
if (expAmt == 0) accepted = false;
else accepted = ((double) (expAmt - 32000) / expAmt) < 3000.;
}
System.out.println(" Salary proposal is " + (accepted ? "Accepted!" : "Declined"));
// Send the results back to the borrower
TextMessage tmsg = qSession.createTextMessage();
tmsg.setText(accepted ? "Accepted!" : "Declined");
tmsg.setJMSCorrelationID(message.getJMSMessageID());
// Create the sender and send the message
QueueSender qSender = qSession.createSender((Queue) message.getJMSReplyTo());
qSender.send(tmsg);
System.out.println("\nWaiting for salary requests...");
} catch (JMSException jmse) {
jmse.printStackTrace();
System.exit(1);
} catch (Exception jmse) {
jmse.printStackTrace();
System.exit(1);
}
}
/**
* Send a message to controlQueue. Called by a subscriber to notify a publisher that it is ready
* to receive messages.
*
* <p>If controlQueue doesn't exist, the method throws an exception.
*
* @param prefix prefix (publisher or subscriber) to be displayed
* @param controlQueueName name of control queue
*/
public static void sendSynchronizeMessage(String prefix, String controlQueueName)
throws Exception {
QueueConnectionFactory queueConnectionFactory = null;
QueueConnection queueConnection = null;
QueueSession queueSession = null;
Queue controlQueue = null;
QueueSender queueSender = null;
TextMessage message = null;
try {
queueConnectionFactory = SampleUtilities.getQueueConnectionFactory();
queueConnection = queueConnectionFactory.createQueueConnection();
queueSession = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
controlQueue = getQueue(controlQueueName, queueSession);
} catch (Exception e) {
System.out.println("Connection problem: " + e.toString());
if (queueConnection != null) {
try {
queueConnection.close();
} catch (JMSException ee) {
}
}
throw e;
}
try {
queueSender = queueSession.createSender(controlQueue);
message = queueSession.createTextMessage();
message.setText("synchronize");
System.out.println(prefix + "Sending synchronize message to " + controlQueueName);
queueSender.send(message);
} catch (JMSException e) {
System.out.println("Exception occurred: " + e.toString());
throw e;
} finally {
if (queueConnection != null) {
try {
queueConnection.close();
} catch (JMSException e) {
}
}
}
}
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);
}
}
