Package org.opends.server.config

Class JMXMBean

java.lang.Object

org.opends.server.config.JMXMBean

All Implemented Interfaces:

DynamicMBean, DirectoryServerMBean

@PublicAPI(stability=VOLATILE,
           mayInstantiate=true,
           mayInvoke=true)
public final class JMXMBean
extends Object
implements DynamicMBean, DirectoryServerMBean

This class defines a JMX MBean that can be registered with the Directory Server to provide monitoring and statistical information, provide read and/or read-write access to the monitoring, and provide notifications and alerts if a significant event or severe/fatal error occurs.

Constructor Summary

Constructors

Constructor	Description
JMXMBean(Dn monitorEntryDN, ServerContext serverContext)	Creates a new dynamic JMX MBean for use with the Directory Server.

Method Summary

Modifier and Type	Method	Description
void	addAlertGenerator(AlertGenerator generator)	Adds the provided alert generator to the set of alert generators associated with this JMX MBean.
void	addMonitorProvider(MonitorProvider component)	Adds the given monitor provider to the set of components associated with this JMX MBean.
Attribute	getAttribute(String attributeName)	Obtain the value of a specific attribute of the Dynamic MBean.
AttributeList	getAttributes(String[] attributes)	Get the values of several attributes of the Dynamic MBean.
static String	getJmxName(Dn monitorEntryDN)	Creates a JMX object name string based on a DN.
MBeanInfo	getMBeanInfo()	Provides the exposed attributes and actions of the Dynamic MBean using an MBeanInfo object.
ObjectName	getObjectName()	Retrieves the JMX object name for this JMX MBean.
Object	invoke(String actionName, Object[] params, String[] signature)	Allows an action to be invoked on the Dynamic MBean.
void	removeAlertGenerator(AlertGenerator generator)	Removes the provided alert generator from the set of alert generators associated with this JMX MBean.
void	removeMonitorProvider(MonitorProvider component)	Removes the given monitor provider from the set of components associated with this JMX MBean.
void	setAttribute(Attribute attribute)	Set the value of a specific attribute of the Dynamic MBean.
AttributeList	setAttributes(AttributeList attributes)	Sets the values of several attributes of the Dynamic MBean.

Methods inherited from class java.lang.Object

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

Constructor Detail

JMXMBean

public JMXMBean(Dn monitorEntryDN,
                ServerContext serverContext)
         throws MalformedObjectNameException

Creates a new dynamic JMX MBean for use with the Directory Server.

Parameters:

monitorEntryDN - The DN of the monitoring entry with which this MBean is associated.

serverContext - The server context

Throws:

MalformedObjectNameException - if we cannot build a valid JMX object name

Method Detail

getJmxName

public static String getJmxName(Dn monitorEntryDN)

Creates a JMX object name string based on a DN.

Parameters:

monitorEntryDN - The DN of the monitoring entry with which this ObjectName is associated.

Returns:

The string representation of the JMX Object Name associated with the input DN.

getObjectName

public ObjectName getObjectName()

Retrieves the JMX object name for this JMX MBean.

Specified by:

getObjectName in interface DirectoryServerMBean

Returns:

The JMX object name for this JMX MBean.

addAlertGenerator

public void addAlertGenerator(AlertGenerator generator)

Adds the provided alert generator to the set of alert generators associated with this JMX MBean.

Parameters:

generator - The alert generator to add to the set of alert generators for this JMX MBean.

removeAlertGenerator

public void removeAlertGenerator(AlertGenerator generator)

Removes the provided alert generator from the set of alert generators associated with this JMX MBean.

Parameters:

generator - The alert generator to remove from the set of alert generators for this JMX MBean.

addMonitorProvider

public void addMonitorProvider(MonitorProvider component)

Adds the given monitor provider to the set of components associated with this JMX MBean.

Parameters:

component - The component to add to the set of monitor providers for this JMX MBean.

removeMonitorProvider

public void removeMonitorProvider(MonitorProvider component)

Removes the given monitor provider from the set of components associated with this JMX MBean.

Parameters:

component - The component to remove from the set of monitor providers for this JMX MBean.

getAttribute

public Attribute getAttribute(String attributeName)
                       throws AttributeNotFoundException

Obtain the value of a specific attribute of the Dynamic MBean.

Specified by:

getAttribute in interface DynamicMBean

Parameters:

attributeName - The name of the attribute to be retrieved.

Returns:

The requested attribute.

Throws:

AttributeNotFoundException - If the specified attribute is not associated with this MBean.

setAttribute

public void setAttribute(Attribute attribute)
                  throws InvalidAttributeValueException

Set the value of a specific attribute of the Dynamic MBean. In this case, it will always throw InvalidAttributeValueException because setting attribute values over JMX is currently not allowed.

Specified by:

setAttribute in interface DynamicMBean

Parameters:

attribute - The identification of the attribute to be set and the value it is to be set to.

Throws:

InvalidAttributeValueException - If the provided value is not acceptable for this MBean.

getAttributes

public AttributeList getAttributes(String[] attributes)

Get the values of several attributes of the Dynamic MBean.

Specified by:

getAttributes in interface DynamicMBean

Parameters:

attributes - A list of the attributes to be retrieved.

Returns:

The list of attributes retrieved.

setAttributes

public AttributeList setAttributes(AttributeList attributes)

Sets the values of several attributes of the Dynamic MBean.

Specified by:

setAttributes in interface DynamicMBean

Parameters:

attributes - A list of attributes: The identification of the attributes to be set and the values they are to be set to.

Returns:

The list of attributes that were set with their new values. In this case, the list will always be empty because we do not support setting attribute values over JMX.

invoke

public Object invoke(String actionName,
                     Object[] params,
                     String[] signature)
              throws MBeanException

Allows an action to be invoked on the Dynamic MBean.

Specified by:

invoke in interface DynamicMBean

Parameters:

actionName - The name of the action to be invoked.

params - An array containing the parameters to be set when the action is invoked.

signature - An array containing the signature of the action. The class objects will be loaded through the same class loader as the one used for loading the MBean on which action is invoked.

Returns:

The object returned by the action, which represents the result of invoking the action on the MBean specified.

Throws:

MBeanException - If a problem is encountered while invoking the method.

getMBeanInfo

public MBeanInfo getMBeanInfo()

Provides the exposed attributes and actions of the Dynamic MBean using an MBeanInfo object.

Specified by:

getMBeanInfo in interface DynamicMBean

Returns:

An instance of MBeanInfo allowing all attributes and actions exposed by this Dynamic MBean to be retrieved.