javax.management.remote.rmi

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1. Registering and Exposing an MBean Remotely

import javax.management.ObjectName;
import javax.management.remote.JMXConnectorServer;
import javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.rmi.RMIConnectorServer;

// Create an MBean to expose remote methods
ObjectName mBeanName = new ObjectName("com.example:type=MyMBean");

// Create an RMI connector server
RMIConnectorServer server = JMXConnectorServerFactory.newRMIConnectorServer(
        new JMXConnectorServer.RMIConfiguration(
                // Set the RMI port
                Integer.valueOf(9999),
                // Enable authentication
                true,
                // Set authentication credentials
                "admin",
                "password"));

// Register the MBean with the RMI connector server
server.getMBeanServer().registerMBean(mBean, mBeanName);

// Start the RMI connector server
server.start();

2. Connecting to a Remote MBean Server

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

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Get the MBean server connection
MBeanServerConnection mBeanServerConnection = connector.getMBeanServerConnection();

// Get an MBean
ObjectName mBeanName = new ObjectName("com.example:type=MyMBean");
Object mBean = mBeanServerConnection.getAttribute(mBeanName, "Name");

3. Invoking Remote MBean Methods

import javax.management.InvocationTargetException;
import javax.management.MBeanServerConnection;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Get the MBean server connection
MBeanServerConnection mBeanServerConnection = connector.getMBeanServerConnection();

// Get an MBean
ObjectName mBeanName = new ObjectName("com.example:type=MyMBean");
Object[] params = new Object[] {"John Doe"};
String[] signature = new String[] {"java.lang.String"};

// Invoke the operation
Object result = mBeanServerConnection.invoke(mBeanName, "setName", params, signature);

4. Monitoring Remote MBeans with Event Listeners

import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.Notification;
import javax.management.NotificationListener;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Get the MBean server connection
MBeanServerConnection mBeanServerConnection = connector.getMBeanServerConnection();

// Get an MBean
ObjectName mBeanName = new ObjectName("com.example:type=MyMBean");

// Create a notification listener
NotificationListener listener = new NotificationListener() {
    @Override
    public void handleNotification(Notification notification, Object handback) {
        // Handle the notification here
    }
};

// Add the notification listener to the MBean
mBeanServerConnection.addNotificationListener(mBeanName, listener, null, null);

5. Creating and Registering MBeans Remotely

import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import com.example.MyMBean;

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Get the MBean server connection
MBeanServerConnection mBeanServerConnection = connector.getMBeanServerConnection();

// Create an MBean to register
MyMBean mBean = new MyMBean();

// Create an ObjectName for the MBean
ObjectName mBeanName = new ObjectName("com.example:type=MyMBean");

// Register the MBean with the remote MBean server
mBeanServerConnection.registerMBean(mBean, mBeanName);

6. Unregistering MBeans Remotely

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

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Get the MBean server connection
MBeanServerConnection mBeanServerConnection = connector.getMBeanServerConnection();

// Get an MBean
ObjectName mBeanName = new ObjectName("com.example:type=MyMBean");

// Unregister the MBean from the remote MBean server
mBeanServerConnection.unregisterMBean(mBeanName);

7. Setting MBean Attributes Remotely

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

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Get the MBean server connection
MBeanServerConnection mBeanServerConnection = connector.getMBeanServerConnection();

// Get an MBean
ObjectName mBeanName = new ObjectName("com.example:type=MyMBean");

// Create an attribute to set
Attribute attribute = new Attribute("Name", "John Doe");

// Set the attribute value on the remote MBean
mBeanServerConnection.setAttribute(mBeanName, attribute);

8. Getting MBean Attributes Remotely

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

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Get the MBean server connection
MBeanServerConnection mBeanServerConnection = connector.getMBeanServerConnection();

// Get an MBean
ObjectName mBeanName = new ObjectName("com.example:type=MyMBean");

// Get the attribute value from the remote MBean
Object value = mBeanServerConnection.getAttribute(mBeanName, "Name");

9. Querying MBeans Remotely

import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.Query;
import javax.management.QueryExp;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Get the MBean server connection
MBeanServerConnection mBeanServerConnection = connector.getMBeanServerConnection();

// Create a query expression
QueryExp query = Query.eq(Query.attr("Name"), Query.value("John Doe"));

// Perform the query on the remote MBean server
ObjectName[] mBeanNames = mBeanServerConnection.queryNames(null, query);

10. Monitoring Remote MBeans with Instrumentation

import java.util.HashMap;
import java.util.Map;
import javax.management.MBeanServerConnection;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import com.sun.management.OperatingSystemMXBean;

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Get the MBean server connection
MBeanServerConnection mBeanServerConnection = connector.getMBeanServerConnection();

// Get the OperatingSystemMXBean
ObjectName mBeanName = new ObjectName("java.lang:type=OperatingSystem");
OperatingSystemMXBean mBean = (OperatingSystemMXBean) mBeanServerConnection.getMBean(mBeanName);

// Set up the instrumentation
Map<String, Long> previousValues = new HashMap<>();
previousValues.put("SystemLoadAverage", mBean.getSystemLoadAverage());
previousValues.put("ProcessCpuTime", mBean.getProcessCpuTime());

11. Remote MBean Server Monitoring

import javax.management.Notification;
import javax.management.NotificationListener;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Set up the notification listener
NotificationListener listener = new NotificationListener() {
    @Override
    public void handleNotification(Notification notification, Object handback) {
        // Handle the notification here
    }
};

// Add the notification listener to the remote MBean server
connector.addConnectionNotificationListener(listener, null, null);

12. Remote MBean Server Shutdown

import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server");

// Create a JMX connector
JMXConnector connector = JMXConnectorFactory.connect(url);

// Shutdown the remote MBean server
connector.getMBeanServerConnection().shutdown();

13. Remote MBean Server Configuration

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

// Create a JMX service URL to connect to the remote server
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9