/**
* Copyright 2004-2005 jManage.org
*
* Licensed 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.jmanage.testapp.jsr160;
import org.jmanage.core.util.Loggers;
import org.jmanage.testapp.mbeans.*;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.management.MBeanServerFactory;
import javax.management.openmbean.OpenDataException;
import javax.management.remote.JMXServiceURL;
import javax.management.remote.JMXConnectorServer;
import javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.JMXAuthenticator;
import javax.security.auth.Subject;
import java.util.logging.Logger;
import java.util.logging.Level;
import java.util.HashMap;
import java.util.Map;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.rmi.registry.LocateRegistry;
/**
*
* date: Dec 19, 2004
* @author Rakesh Kalra
*/
public class JMXHelper {
private static final Logger logger = Loggers.getLogger(JMXHelper.class);
// the mbeanServer used by the application
private static MBeanServer mbeanServer;
// the lock used to obtain the first mbeanServer
private static Object mbeanServerLock = new Object();
/**
* Obtains a reference to the MBean server. If at least one
* MBean server already exists, then a reference to that MBean
* server is returned. Otherwise a new instance is created.
*/
private static MBeanServer getMBeanServer() {
if (mbeanServer == null) {
mbeanServer = _getMBeanServer();
}
return mbeanServer;
}
/**
* registers the MBeans used in the application
* and starts the HTML Adaptor
*/
public static void registerMBeans(int port, boolean jmxmpConnector) {
/* Configuration */
registerMBean(new Configuration(), ObjectNames.CONFIGURATION);
/* Calculator */
registerMBean(new Calculator(), ObjectNames.CALCULATOR);
/* PrimitiveDataTypeTest */
registerMBean(new PrimitiveDataTypeTest(),
ObjectNames.PRIMITIVE_DATA_TYPE_TEST);
/* DataTypeTest */
registerMBean(new DataTypeTest(), ObjectNames.DATA_TYPE_TEST);
/* BigDataTypeTest */
registerMBean(new BigDataTypeTest(), ObjectNames.BIG_DATA_TYPE_TEST);
/* BigDataTypeTest */
registerMBean(new ObjectNameDataTypeTest(),
ObjectNames.OBJECT_NAME_DATA_TYPE_TEST);
/* TimeNotificationBroadcaster */
registerMBean(new TimeNotificationBroadcaster(),
ObjectNames.TIME_NOTIFICATION_BROADCASTER);
/* Data Formatter */
registerMBean(new DataFormat(),
ObjectNames.DATA_FORMAT);
/* OpenMBeanDataTypeTest */
try {
registerMBean(new OpenMBeanDataTypeTest(),
ObjectNames.OPEN_MBEAN_DATA_TYPE_TEST);
} catch (OpenDataException e) {
throw new RuntimeException(e);
}
if(!jmxmpConnector){
/* start RMI connector */
startJMXConnectorServer(port);
}else{
/* start the JMXMP Connector */
startJMXMPConnectorServer(port);
}
}
public static void registerMBean(Object instance, String objName) {
try {
ObjectName objectName = new ObjectName(objName);
/* register with JSR160 MBean Server*/
MBeanServer server = getMBeanServer();
server.registerMBean(instance, objectName);
/* register with JDK 1.5 MBean server */
ManagementFactory.getPlatformMBeanServer().registerMBean(instance, objectName);
logger.info("registered MBean: " + objName);
} catch (Exception e) {
logger.log(Level.SEVERE, "Failed to register MBean: " + objName, e);
}
}
/* start JSR160 RMI connector*/
private static void startJMXConnectorServer(int port){
try {
/* attempt to start the rmi registry */
startRMIRegistry(port);
/* start the connector server */
JMXServiceURL url = new JMXServiceURL(
"service:jmx:rmi:///jndi/rmi://localhost:" + port + "/testApp");
Map<String, Object> env = new HashMap<String, Object>();
JMXAuthenticator authenticator = new MyJMXAuthenticator();
env.put(JMXConnectorServer.AUTHENTICATOR, authenticator);
JMXConnectorServer cs =
JMXConnectorServerFactory.newJMXConnectorServer(url,
env, getMBeanServer());
cs.start();
logger.info("JMXConnectorServer started. URL: " + url.toString());
} catch (IOException e) {
logger.log(Level.SEVERE, "Failure while starting RMI connector", e);
}
}
private static class MyJMXAuthenticator implements JMXAuthenticator{
public Subject authenticate(Object credentials) {
System.out.println(credentials);
return null;
}
}
/* start JSR160 JMXMP connector*/
private static void startJMXMPConnectorServer(int port){
try {
/* start the connector server */
JMXServiceURL url = new JMXServiceURL(
"service:jmx:jmxmp://localhost:" + port);
Map<String, Object> env = new HashMap<String, Object>();
JMXAuthenticator authenticator = new MyJMXAuthenticator();
env.put(JMXConnectorServer.AUTHENTICATOR, authenticator);
JMXConnectorServer cs =
JMXConnectorServerFactory.newJMXConnectorServer(url,
env, getMBeanServer());
cs.start();
logger.info("JMXConnectorServer started. URL: " + url.toString());
} catch (IOException e) {
logger.log(Level.SEVERE, "Failure while starting RMI connector", e);
}
}
/* start rmi registry */
private static void startRMIRegistry(int port){
try {
LocateRegistry.createRegistry(port);
logger.info("rmiregistry started on: " + port);
} catch (IOException e) {
logger.log(Level.WARNING, "Error starting rmiregistry on " + port, e);
}
}
////////////////////////////////////////////////////////////////////////////
// Helper Methods
/**
* look up or create a MBeanServer
* @return instance of MBeanServer
*/
private static MBeanServer _getMBeanServer() {
// synchronize to make sure that we don't create multiple MBeanServers
synchronized (mbeanServerLock) {
// if we got the instance in the mean time, just return it
if (mbeanServer != null)
return mbeanServer;
return MBeanServerFactory.createMBeanServer();
}
}
}