/**
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*
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* copy of this document.
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* above copyright notice, this list of conditions and the
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* products derived from this Software without prior written
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* please contact info@exolab.org.
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* 4. Products derived from this Software may not be called "Exolab"
* nor may "Exolab" appear in their names without prior written
* permission of Exoffice Technologies. Exolab is a registered
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*
* 5. Due credit should be given to the Exolab Project
* (http://www.exolab.org/).
*
* THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 1999 (C) Exoffice Technologies Inc. All Rights Reserved.
*
* $Id: TemporaryQueue.java,v 1.13 2002/05/07 16:25:48 jima Exp $
*
* Date Author Changes
* 04/25/2000 jima Created
*/
package openjms.examples.client.console;
import java.io.PrintStream;
import java.util.Hashtable;
import javax.naming.InitialContext;
import javax.naming.Context;
import javax.jms.Session;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueConnection;
import javax.jms.QueueSession;
import javax.jms.QueueReceiver;
import javax.jms.MessageListener;
import javax.jms.Message;
import javax.jms.Queue;
import javax.jms.QueueRequestor;
import javax.jms.QueueSender;
import javax.jms.TextMessage;
import javax.jms.QueueConnectionFactory;
import javax.jms.JMSException;
import org.exolab.jms.util.CommandLine;
import org.exolab.jms.client.JmsQueueConnectionFactory;
import org.exolab.core.logger.LoggerFactory;
import org.exolab.core.logger.LoggerIfc;
import org.exolab.core.logger.LogEventType;
import org.exolab.jms.jndi.JndiConstants;
import org.exolab.jms.jndi.mipc.IpcJndiInitialContextFactory;
import org.exolab.jms.jndi.rmi.RmiJndiInitialContextFactory;
/**
* TemporaryQueue are tested through the QueueRequestor class. A sender
* and receiver set up for the specified queue name and then temporary
* queue is used for the publisher to receive a reply from the publisher
* <p>
* This is an RMI based example
*/
public class TemporaryQueue {
static public void main(String[] args) {
try {
CommandLine cmdline = new CommandLine(args);
Thread server_thread = null;
if (cmdline.exists("help")) {
// the help option has been speifie, print the usage
// information
usage();
} else if (cmdline.exists("queue")) {
String queue_name = cmdline.value("queue");
// connect to the JNDI server and get a reference to
// root context
Hashtable props = new Hashtable();
String topic_name = cmdline.value("topic");
String host = "localhost";
String port = null;
String jndiname = "JndiServer";
String mode = null;
if (cmdline.exists("mode")) {
mode = cmdline.value("mode");
} else {
mode = "rmi";
}
String modeType =
RmiJndiInitialContextFactory.class.getName();
if (cmdline.exists("jndiport")) {
port = cmdline.value("jndiport");
}
if (cmdline.exists("jndihost")) {
host = cmdline.value("jndihost");
}
// override the default server name if specified on the
// command line.
if (cmdline.exists("jndiname")) {
jndiname = cmdline.value("jndiname");
}
if (mode.equals("ipc") || mode.equals("tcp")) {
if (port == null) {
port = "3035";
}
props.put(Context.PROVIDER_URL,
"tcp://" + host + ":" + port + "/");
modeType =
"org.exolab.jms.jndi.mipc.IpcJndiInitialContextFactory";
} else if (mode.equals("http")) {
System.out.println("Using HTTP");
String type = "http://";
if (cmdline.exists("secure")) {
if (port == null) {
port = "8443";
}
type = "https://";
modeType =
"org.exolab.jms.jndi.http.SslHttpJndiInitialContextFactory";
} else {
if (port == null) {
port = "8080";
}
modeType =
"org.exolab.jms.jndi.http.HttpJndiInitialContextFactory";
}
props.put(Context.PROVIDER_URL,
type + host + ":" + port + "/" +
"openjms/servlet/OpenJMSJndi");
String url = cmdline.value("url");
if (url == null) {
url = type + "localhost:8080";
}
// Client URL to allow server to send messages
// to registered consumers/receivers
System.getProperties().setProperty
(JndiConstants.HTTP_CLIENT_URL_PROPERTY, url);
} else {
if (port == null) {
port = "1099";
}
props.put(Context.PROVIDER_URL,
"rmi://" + host + ":" + port + "/" + jndiname);
}
System.err.println("Using provider url " + props.get(Context.PROVIDER_URL));
props.put(Context.INITIAL_CONTEXT_FACTORY, modeType);
Context context = new InitialContext(props);
// lookup the connection factory from the context
QueueConnectionFactory factory = (QueueConnectionFactory)
context.lookup("JmsQueueConnectionFactory");
// if we can't find the factory then throw an exception
if (factory == null) {
throw new RuntimeException(
"Failed to locate connection factory");
}
QueueConnection connection = factory.createQueueConnection();
connection.start();
QueueSession session =
connection.createQueueSession(false, ackMode__ );
// this is not the preferred way to get a queue
Queue queue = session.createQueue(queue_name);
if (queue == null) {
System.err.println("Failed to create queue");
} else {
// create a receiver of the request in a separate thread and
// start it running
QueueRequestReply server = new QueueRequestReply(context, queue);
server_thread = new Thread(server);
server_thread.start();
// wait some time while it gets ready
synchronized (server) {
while (true) {
try {
server.wait();
break;
} catch (InterruptedException exception) {
}
}
}
// set up a QueueRequestor and send a request
QueueRequestor request = new QueueRequestor(session, queue);
for (int index = 0; index < 10; index++) {
Message message = session.createTextMessage(
"Message to send " + index);
Message received_msg = request.request(message);
}
System.err.println("Processed 10 messages through the temporary queue");
}
server_thread.join();
connection.close();
} else {
System.err.println("Cannot subscribe to messages under null queue");
}
} catch (Exception exception) {
System.err.println("Fatal error: " + exception + "\nExiting.....");
exception.printStackTrace();
System.exit(-1);
}
}
/**
* Return a reference to the logger
*/
static LoggerIfc getLogger() {
return LoggerFactory.getLogger();
}
/**
* Print out information on running this sevice
*/
static protected void usage() {
PrintStream out = System.out;
out.println("\n\n");
out.println("====================================================================");
out.println("Usage information for openjms.examples.client.console.TemporaryQueue");
out.println("====================================================================");
out.println("\nopenjms.examples.console.client.TemporaryQueue");
out.println(" [-help | -queue <queue name> ] | -mode <rmi/ipc>\n");
out.println("\t-help displays this screen\n");
out.println("\t-queue queue name to subscriber under.\n");
out.println("\t-mode connect in either ipc mode or rmi mode.\n");
}
// Define the ack mode for the session. It defaults to client ack
static int ackMode__ = Session.AUTO_ACKNOWLEDGE;
}
/**
* This class setsup a subscriber to the specified queue. It basically
* creates a session using the specified connection and subscribes to
* the registered queue. When it receives a message it simply creates
* a publishers and replies to the reply-to destination in the message.
*/
class QueueRequestReply implements Runnable {
public QueueRequestReply(Context context, Queue queue) {
context_ = context;
queue_ = queue;
}
public void run() {
try {
// lookup the connection factory from the context
QueueConnectionFactory factory =
(QueueConnectionFactory)context_.lookup("JmsQueueConnectionFactory");
// if we can't find the factory then throw an exception
if (factory == null) {
throw new RuntimeException("Failed to locate connection factory");
}
connection_ = factory.createQueueConnection();
connection_.start();
session_ = connection_.createQueueSession(
false, Session.AUTO_ACKNOWLEDGE);
if ((queue_ != null) &&
(session_ != null)) {
// create a subscriber for the specified session and then
// wait for a message to arrive.
receiver_ = session_.createReceiver(queue_);
} else {
System.err.println("Error in run : queue=" + queue_ +
" and session is " + session_);
}
// we are ready to notify the waiting thread to
// continue
synchronized (this) {
notifyAll();
}
for (int index = 0; index < 10; index++) {
Message message = receiver_.receive();
// create a publisher and then publish the message back to
// the sender
QueueSender sender = session_.createSender(null);
sender.send((Queue)message.getJMSReplyTo(), message);
}
// close the session and exit
connection_.close();
} catch (Exception exception) {
exception.printStackTrace();
}
}
/**
* Return a reference to the logger
*/
LoggerIfc getLogger() {
return LoggerFactory.getLogger();
}
Context context_ = null;
Queue queue_ = null;
QueueSession session_ = null;
QueueConnection connection_ = null;
QueueReceiver receiver_ = null;
}