org.granite.jmx

Class MBeanServerLocator

java.lang.Object

org.granite.jmx.MBeanServerLocator

public class MBeanServerLocator
extends Object

Utility class for MBean server lookup (with a specific support for the JBoss JMX console) and MBeans registration.

Author:

Franck WOLFF

Method Summary

Methods

Modifier and Type	Method and Description
static MBeanServerLocator	getInstance() Returns a singleton instance of the MBeanServerLocator class.
MBeanServer	getMBeanServer() Returns the MBeanServer wrapped by this MBeanServerLocator instance.
boolean	isRegistered(ObjectName name) Returns true if a MBean is registered under the supplied name.
void	register(Object mbean, ObjectName name) Register the mbean object with the supplied name.
void	register(Object mbean, ObjectName name, boolean replace) Register the mbean object with the supplied name.
void	unregister(ObjectName name) Unregister any mbean registered under the supplied name.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getInstance

public static MBeanServerLocator getInstance()

Returns a singleton instance of the MBeanServerLocator class. The first call to this method performs an initial lookup of a MBeanServer.

Returns:

a singleton instance of the MBeanServerLocator class.

getMBeanServer

public MBeanServer getMBeanServer()

Returns the MBeanServer wrapped by this MBeanServerLocator instance.

Returns:

the wrapped MBeanServer.

register

public void register(Object mbean,
            ObjectName name)
              throws MBeanRegistrationException,
                     InstanceNotFoundException,
                     InstanceAlreadyExistsException,
                     NotCompliantMBeanException

Register the mbean object with the supplied name. Calling this method is equivalent to calling register(Object, ObjectName, boolean) with its last parameter set to false.

Parameters:

mbean - the mbean to register.

name - the name used for registration.

Throws:

MBeanRegistrationException - rethrown from the wrapped MBeanServer

InstanceNotFoundException - rethrown from the wrapped MBeanServer

InstanceAlreadyExistsException - rethrown from the wrapped MBeanServer

NotCompliantMBeanException - rethrown from the wrapped MBeanServer

register

public void register(Object mbean,
            ObjectName name,
            boolean replace)
              throws MBeanRegistrationException,
                     InstanceNotFoundException,
                     InstanceAlreadyExistsException,
                     NotCompliantMBeanException

Register the mbean object with the supplied name. If the replace parameter is set to true and if a MBean is already registered under the same name, it is first unregistered.

Parameters:

mbean - the mbean to register.

name - the name used for registration.

replace - if true, a mbean registered under the same name will be first unregistered.

Throws:

MBeanRegistrationException - rethrown from the wrapped MBeanServer

InstanceNotFoundException - rethrown from the wrapped MBeanServer

InstanceAlreadyExistsException - rethrown from the wrapped MBeanServer

NotCompliantMBeanException - rethrown from the wrapped MBeanServer

isRegistered

public boolean isRegistered(ObjectName name)

Returns true if a MBean is registered under the supplied name.

Parameters:

name - the name to test for registration.

Returns:

true if a mbean is registered, false otherwise.

unregister

public void unregister(ObjectName name)
                throws InstanceNotFoundException,
                       MBeanRegistrationException

Unregister any mbean registered under the supplied name.

Parameters:

name - the name of mbean to unregister.

Throws:

InstanceNotFoundException - rethrown from the wrapped MBeanServer

MBeanRegistrationException - rethrown from the wrapped MBeanServer