cz.cuni.amis.pogamut.base.utils.jmx.flag
Class JMXFlagDecorator<T extends Serializable>

java.lang.Object
  cz.cuni.amis.pogamut.base.utils.jmx.flag.JMXFlagDecorator<T>

All Implemented Interfaces:

JMXFlagDecoratorMBean, NotificationBroadcaster, NotificationEmitter

public class JMXFlagDecorator<T extends Serializable>
extends Object
implements JMXFlagDecoratorMBean, NotificationEmitter

Translates Flag events to JMX events. Adds a listener on the flag and resends the events to supplied broadcaster support.

Author:

Ik

Field Summary

protected int	eventCounter
protected cz.cuni.amis.utils.flag.Flag<T>	flag
protected String	flagName
protected cz.cuni.amis.utils.flag.FlagListener<T>	listener
protected NotificationBroadcasterSupport	nbs Support object for sending notifications.
protected ObjectName	source

Constructor Summary

JMXFlagDecorator(cz.cuni.amis.utils.flag.Flag<T> flag, ObjectName source, MBeanServer mbs, String flagName)

Method Summary

void	addNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback)
Serializable	getFlag()
MBeanNotificationInfo	getMBeanNotificationInfo()
MBeanNotificationInfo[]	getNotificationInfo()
void	removeNotificationListener(NotificationListener listener)
void	removeNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback)
void	stop() Stops listening for the flag events.

Methods inherited from class java.lang.Object

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

Field Detail

flag

protected cz.cuni.amis.utils.flag.Flag<T extends Serializable> flag

source

protected ObjectName source

eventCounter

protected int eventCounter

flagName

protected String flagName

listener

protected cz.cuni.amis.utils.flag.FlagListener<T extends Serializable> listener

nbs

protected NotificationBroadcasterSupport nbs

Support object for sending notifications.

Constructor Detail

JMXFlagDecorator

public JMXFlagDecorator(cz.cuni.amis.utils.flag.Flag<T> flag,
                        ObjectName source,
                        MBeanServer mbs,
                        String flagName)
                 throws MalformedObjectNameException,
                        InstanceAlreadyExistsException,
                        MBeanRegistrationException,
                        NotCompliantMBeanException

Parameters:

flag - Flag to be exposed through JMX.

source - MBean or ObjectName of the object where the flag resides.

nbs - NotificationBroadcasterSupport through which the events will be send.

Throws:

MalformedObjectNameException

InstanceAlreadyExistsException

MBeanRegistrationException

NotCompliantMBeanException

Method Detail

stop

public void stop()

Stops listening for the flag events.

getMBeanNotificationInfo

public MBeanNotificationInfo getMBeanNotificationInfo()

Returns:

Notification info about this events possibly raised by this flag.

getFlag

public Serializable getFlag()

Specified by:

getFlag in interface JMXFlagDecoratorMBean

Returns:

Current flag value.

removeNotificationListener

public void removeNotificationListener(NotificationListener listener,
                                       NotificationFilter filter,
                                       Object handback)
                                throws ListenerNotFoundException

Specified by:

removeNotificationListener in interface NotificationEmitter

Throws:

ListenerNotFoundException

addNotificationListener

public void addNotificationListener(NotificationListener listener,
                                    NotificationFilter filter,
                                    Object handback)
                             throws IllegalArgumentException

Specified by:

addNotificationListener in interface NotificationBroadcaster

Throws:

IllegalArgumentException

removeNotificationListener

public void removeNotificationListener(NotificationListener listener)
                                throws ListenerNotFoundException

Specified by:

removeNotificationListener in interface NotificationBroadcaster

Throws:

ListenerNotFoundException

getNotificationInfo

public MBeanNotificationInfo[] getNotificationInfo()

Specified by:

getNotificationInfo in interface NotificationBroadcaster