apache-activemq-5.13.1-bin.tar.gz
apache-activemq-5.13.1-bin.tar.gz
代码片段和文件信息
/**
* 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 example;
import org.apache.qpid.jms.*;
import javax.jms.*;
class Listener {
public static void main(String[] args) throws JMSException {
final String TOPIC_PREFIX = “topic://“;
String user = env(“ACTIVEMQ_USER“ “admin“);
String password = env(“ACTIVEMQ_PASSWORD“ “password“);
String host = env(“ACTIVEMQ_HOST“ “localhost“);
int port = Integer.parseInt(env(“ACTIVEMQ_PORT“ “5672“));
String connectionURI = “amqp://“ + host + “:“ + port;
String destinationName = arg(args 0 “topic://event“);
JmsConnectionFactory factory = new JmsConnectionFactory(connectionURI);
Connection connection = factory.createConnection(user password);
connection.start();
Session session = connection.createSession(false Session.AUTO_ACKNOWLEDGE);
Destination destination = null;
if (destinationName.startsWith(TOPIC_PREFIX)) {
destination = session.createTopic(destinationName.substring(TOPIC_PREFIX.length()));
} else {
destination = session.createQueue(destinationName);
}
MessageConsumer consumer = session.createConsumer(destination);
long start = System.currentTimeMillis();
long count = 1;
System.out.println(“Waiting for messages...“);
while (true) {
Message msg = consumer.receive();
if (msg instanceof TextMessage) {
String body = ((TextMessage) msg).getText();
if (“SHUTDOWN“.equals(body)) {
long diff = System.currentTimeMillis() - start;
System.out.println(String.format(“Received %d in %.2f seconds“ count (1.0 * diff / 1000.0)));
connection.close();
try {
Thread.sleep(10);
} catch (Exception e) {}
System.exit(1);
} else {
try {
if (count != msg.getIntProperty(“id“)) {
System.out.println(“mismatch: “ + count + “!=“ + msg.getIntProperty(“id“));
}
} catch (
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