Package org.eclipse.jetty.jmx

Class MBeanContainer

java.lang.Object

org.eclipse.jetty.jmx.MBeanContainer

All Implemented Interfaces:

EventListener, Container.InheritedListener, Container.Listener, Destroyable, Dumpable

@ManagedObject("The component that registers beans as MBeans")
public class MBeanContainer
extends Object
implements Container.InheritedListener, Dumpable, Destroyable

Container class for the MBean instances

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.Dumpable

Dumpable.DumpableContainer

Field Summary

Fields inherited from interface org.eclipse.jetty.util.component.Dumpable

KEY

Constructor Summary

Constructors

Constructor	Description
MBeanContainer(MBeanServer server)	Constructs MBeanContainer
MBeanContainer(MBeanServer server, boolean cacheOtherClassLoaders)	Constructs MBeanContainer

Method Summary

Modifier and Type	Method	Description
void	beanAdded(Container parent, Object obj)
void	beanRemoved(Container parent, Object obj)
void	destroy()
String	dump()
void	dump(Appendable out, String indent)	Dump this object (and children) into an Appendable using the provided indent after any new lines.
Object	findBean(ObjectName objectName)	Lookup an instance by object name
ObjectName	findMBean(Object object)	Lookup an object name by instance
String	getDomain()	Retrieve domain name used to add MBeans
MBeanServer	getMBeanServer()	Retrieve instance of MBeanServer used by container
boolean	isUseCacheForOtherClassLoaders()
String	makeName(String basis)
Object	mbeanFor(Object o)	Creates an ObjectMBean for the given object.
void	setDomain(String domain)	Set domain to be used to add MBeans

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.jetty.util.component.Dumpable

dumpSelf

Constructor Details

MBeanContainer

public MBeanContainer(MBeanServer server)

Constructs MBeanContainer

Parameters:

server - instance of MBeanServer for use by container

MBeanContainer

public MBeanContainer(MBeanServer server,
 boolean cacheOtherClassLoaders)

Constructs MBeanContainer

Parameters:

server - instance of MBeanServer for use by container

cacheOtherClassLoaders - If true, MBeans from other classloaders (eg WebAppClassLoader) will be cached. The cache is never flushed, so this should be false if some classloaders do not live forever.

Method Details

getMBeanServer

public MBeanServer getMBeanServer()

Retrieve instance of MBeanServer used by container

Returns:

instance of MBeanServer

isUseCacheForOtherClassLoaders

@ManagedAttribute(value="Whether to use the cache for MBeans loaded by other ClassLoaders",
                  readonly=true)
public boolean isUseCacheForOtherClassLoaders()

setDomain

public void setDomain(String domain)

Set domain to be used to add MBeans

Parameters:

domain - domain name

getDomain

@ManagedAttribute("The default ObjectName domain")
public String getDomain()

Retrieve domain name used to add MBeans

Returns:

domain name

mbeanFor

public Object mbeanFor(Object o)

Creates an ObjectMBean for the given object.

Attempts to create an ObjectMBean for the object by searching the package and class name space. For example an object of the type:

 class com.acme.MyClass extends com.acme.util.BaseClass implements com.acme.Iface
 

then this method would look for the following classes:

• com.acme.jmx.MyClassMBean
• com.acme.util.jmx.BaseClassMBean
• org.eclipse.jetty.jmx.ObjectMBean

Parameters:

o - The object

Returns:

A new instance of an MBean for the object or null.

findMBean

public ObjectName findMBean(Object object)

Lookup an object name by instance

Parameters:

object - instance for which object name is looked up

Returns:

object name associated with specified instance, or null if not found

findBean

public Object findBean(ObjectName objectName)

Lookup an instance by object name

Parameters:

objectName - object name of instance

Returns:

instance associated with specified object name, or null if not found

beanAdded

public void beanAdded(Container parent,
 Object obj)

Specified by:

beanAdded in interface Container.Listener

beanRemoved

public void beanRemoved(Container parent,
 Object obj)

Specified by:

beanRemoved in interface Container.Listener

makeName

public String makeName(String basis)

Parameters:

basis - name to strip of special characters.

Returns:

normalized name

dump

public void dump(Appendable out,
 String indent)
          throws IOException

Description copied from interface: Dumpable

Dump this object (and children) into an Appendable using the provided indent after any new lines. The indent should not be applied to the first object dumped.

Specified by:

dump in interface Dumpable

Parameters:

out - The appendable to dump to

indent - The indent to apply after any new lines.

Throws:

IOException - if unable to write to Appendable

dump

public String dump()

Specified by:

dump in interface Dumpable

destroy

public void destroy()

Specified by:

destroy in interface Destroyable