Github user gemmellr commented on a diff in the pull request:
https://github.com/apache/qpid-jms/pull/7#discussion_r116052679
--- Diff:
qpid-jms-examples/src/main/java/org/apache/qpid/jms/example/Client.java ---
@@ -0,0 +1,106 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+package org.apache.qpid.jms.example;
+
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.DeliveryMode;
+import javax.jms.Destination;
+import javax.jms.ExceptionListener;
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageConsumer;
+import javax.jms.MessageProducer;
+import javax.jms.Session;
+import javax.jms.TemporaryQueue;
+import javax.jms.TextMessage;
+import javax.naming.Context;
+import javax.naming.InitialContext;
+
+public class Client {
+ private static final int DELIVERY_MODE = DeliveryMode.NON_PERSISTENT;
+
+ public static void main(String[] args) throws Exception {
+ try {
+ // The configuration for the Qpid InitialContextFactory has
been supplied in
+ // a jndi.properties file in the classpath, which results in
it being picked
+ // up automatically by the InitialContext constructor.
+ Context context = new InitialContext();
+
+ ConnectionFactory factory = (ConnectionFactory)
context.lookup("myFactoryLookup");
+ Destination queue = (Destination)
context.lookup("myQueueLookup");
+
+ Connection connection =
factory.createConnection(System.getProperty("USER"),
System.getProperty("PASSWORD"));
+ connection.setExceptionListener(new MyExceptionListener());
+ connection.start();
+
+ Session session = connection.createSession(false,
Session.AUTO_ACKNOWLEDGE);
+
+ //Creates a message and temporary queue to send to and from.
+ int random = (int) (Math.random()*3);
+ TextMessage messageToBeSent;
+ if (random == 0) {
+ messageToBeSent = session.createTextMessage("first example
message");
+ } else if (random == 1) {
+ messageToBeSent = session.createTextMessage("second
example message");
+ } else {
+ messageToBeSent = session.createTextMessage("third example
message");
+ }
+
+ TemporaryQueue tempQueue = session.createTemporaryQueue();
+ messageToBeSent.setJMSReplyTo(tempQueue);
+ MessageProducer messageProducer =
session.createProducer(queue);
+
+ //Send the message
+ messageProducer.send(messageToBeSent, DELIVERY_MODE,
Message.DEFAULT_PRIORITY, Message.DEFAULT_TIME_TO_LIVE);
+ System.out.println("[CLIENT] The message with text \"" +
messageToBeSent.getText() +"\" has been sent.");
+
+ MessageConsumer messageConsumer =
session.createConsumer(tempQueue);
+
+ //Receive the server response
+ TextMessage receivedMessage = (TextMessage)
messageConsumer.receive(1000);
+ if (receivedMessage != null) {
+ System.out.println("[CLIENT] Response from server
received.");
+ } else {
+ System.out.println("[CLIENT] Response not received within
timeout, stopping.");
+ }
+
+ //Display response and close client.
+ System.out.println("[CLIENT] Here is the interpreted
message:\n" + receivedMessage.getText() + "\n[CLIENT] Quitting Client.");
+ connection.close();
+ System.exit(1);
--- End diff --
The exit call should be removed. It is signalling an error return code when
everything actually went ok. The example will exit itself naturally once the
connection is closed.
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