How can I get consumer list and consumer “selector” from activemq via jmx?

Question

Here is my code get info via jmx, from this code, I can get some info about ActiveMQ like queue name, consumer count, but I don't know how to get consumer list of one queue and get consumer "selector" in the image?

"selector" image

package controller;

import javax.management.MBeanServerConnection;
import javax.management.MBeanServerInvocationHandler;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

import org.apache.activemq.broker.jmx.BrokerViewMBean;
import org.apache.activemq.broker.jmx.QueueViewMBean;

public class Monitor {

    public static void main(String[] args) throws Exception {
        String url = "service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi";
        JMXServiceURL urls = new JMXServiceURL(url);
        JMXConnector connector = JMXConnectorFactory.connect(urls);
        connector.connect();
        MBeanServerConnection mbsc = connector.getMBeanServerConnection();
        ObjectName objectName = new ObjectName("org.apache.activemq:brokerName=localhost,type=Broker");
        BrokerViewMBean mBean = MBeanServerInvocationHandler.newProxyInstance(mbsc, objectName, BrokerViewMBean.class, true);

        for (ObjectName queueName : mBean.getQueues()) {
            QueueViewMBean queueMBean = MBeanServerInvocationHandler.newProxyInstance(mbsc, queueName, QueueViewMBean.class, true);

        // queue name
        System.out.println("Queue Name:" + queueMBean.getName());

        // consumer count
        System.out.println("Number of Consumers:" + queueMBean.getConsumerCount());

        }
    }

}

Answer 1

You can get a list of Consumers (ID) by querying ConnectionViewMBean. You need to pass the connectionName for which you would wish to list all the consumers. To get the connectionName you need to seek help from JCONSOLE. The canonical object name for Connection Object might be somewhat like:

"org.apache.activemq:type=Broker,brokerName=<>,connector=<Connector>,connectorName=<ConnectorName>"

    ConnectionViewMBean connectionView = MBeanServerInvocationHandler.newProxyInstance(mbeanServer, <connectionName>, ConnectionViewMBean.class, true);
    for (ObjectName name : connectionView.getConsumers()) {
        if (name.equals(subscriptionName)) {
            found = true;
        }
    }