/**
* 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.
*/
/**
* Solace JMS 1.1 Examples: BasicRequestor
*/
package com.solace.samples;
import java.util.UUID;
import javax.jms.Connection;
import javax.jms.DeliveryMode;
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.jms.Topic;
import com.solacesystems.jms.SolConnectionFactory;
import com.solacesystems.jms.SolJmsUtility;
import com.solacesystems.jms.SupportedProperty;
/**
* Sends a request message using Solace JMS API implementation and receives a reply to it.
*
* This is the Requestor in the Request/Reply messaging pattern.
*/
public class BasicRequestor {
final String REQUEST_TOPIC_NAME = "T/GettingStarted/requests";
final int REPLY_TIMEOUT_MS = 10000; // 10 seconds
public void run(String... args) throws Exception {
String[] split = args[1].split("@");
String host = args[0];
String vpnName = split[1];
String username = split[0];
String password = args[2];
System.out.printf("BasicRequestor is connecting to Solace messaging at %s...%n", host);
// Programmatically create the connection factory using default settings
SolConnectionFactory connectionFactory = SolJmsUtility.createConnectionFactory();
connectionFactory.setHost(host);
connectionFactory.setVPN(vpnName);
connectionFactory.setUsername(username);
connectionFactory.setPassword(password);
// Create connection to the Solace router
Connection connection = connectionFactory.createConnection();
// Create a non-transacted, auto ACK session.
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
System.out.printf("Connected to the Solace Message VPN '%s' with client username '%s'.%n", vpnName,
username);
// Create the request topic programmatically
Topic requestTopic = session.createTopic(REQUEST_TOPIC_NAME);
// Create the message producer for the created queue
MessageProducer requestProducer = session.createProducer(requestTopic);
// The response will be received on this temporary queue.
TemporaryQueue replyToQueue = session.createTemporaryQueue();
// Create consumer for receiving the request's reply
MessageConsumer replyConsumer = session.createConsumer(replyToQueue);
// Start receiving replies
connection.start();
// Create a request.
TextMessage request = session.createTextMessage("Sample Request");
// The application must put the destination of the reply in the replyTo field of the request
request.setJMSReplyTo(replyToQueue);
// The application must put a correlation ID in the request
String correlationId = UUID.randomUUID().toString();
request.setJMSCorrelationID(correlationId);
System.out.printf("Sending request '%s' to topic '%s'...%n", request.getText(), requestTopic.toString());
// Send the request
requestProducer.send(requestTopic, request, DeliveryMode.NON_PERSISTENT,
Message.DEFAULT_PRIORITY,
Message.DEFAULT_TIME_TO_LIVE);
System.out.println("Sent successfully. Waiting for reply...");
// the main thread blocks at the next statement until a message received or the timeout occurs
Message reply = replyConsumer.receive(REPLY_TIMEOUT_MS);
if (reply == null) {
throw new Exception("Failed to receive a reply in " + REPLY_TIMEOUT_MS + " msecs");
}
// Process the reply
if (reply.getJMSCorrelationID() == null) {
throw new Exception(
"Received a reply message with no correlationID. This field is needed for a direct request.");
}
// Apache Qpid JMS prefixes correlation ID with string "ID:" so remove such prefix for interoperability
if (!reply.getJMSCorrelationID().replaceAll("ID:", "").equals(correlationId)) {
throw new Exception("Received invalid correlationID in reply message.");
}
if (reply instanceof TextMessage) {
System.out.printf("TextMessage response received: '%s'%n", ((TextMessage) reply).getText());
if (!reply.getBooleanProperty(SupportedProperty.SOLACE_JMS_PROP_IS_REPLY_MESSAGE)) {
System.out.println("Warning: Received a reply message without the isReplyMsg flag set.");
}
} else {
System.out.println("Message response received.");
}
System.out.printf("Message Content:%n%s%n", SolJmsUtility.dumpMessage(reply));
connection.stop();
// Close everything in the order reversed from the opening order
// NOTE: as the interfaces below extend AutoCloseable,
// with them it's possible to use the "try-with-resources" Java statement
// see details at https://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html
replyConsumer.close();
requestProducer.close();
session.close();
connection.close();
}
public static void main(String... args) throws Exception {
if (args.length != 3 || args[1].split("@").length != 2) {
System.out.println("Usage: BasicRequestor <host:port> <client-username@message-vpn> <client-password>");
System.out.println();
System.exit(-1);
}
if (args[1].split("@")[0].isEmpty()) {
System.out.println("No client-username entered");
System.out.println();
System.exit(-1);
}
if (args[1].split("@")[1].isEmpty()) {
System.out.println("No message-vpn entered");
System.out.println();
System.exit(-1);
}
new BasicRequestor().run(args);
}
}
