org.granite.jmx

Class OpenMBean

java.lang.Object

org.granite.jmx.OpenMBean

All Implemented Interfaces:

javax.management.DynamicMBean

public class OpenMBean
extends java.lang.Object
implements javax.management.DynamicMBean

The OpenMBean class wraps an instance of any bean and introspects its properties and methods for MBeanAttributes and MBeanOperations. It implements all functionalities required by a DynamicMBean and returns an OpenMBeanInfo object.

Limitations:

• only attributes and operations are supported (no contructor and no notification),
• only SimpleType and ArrayType are supported (no composite type).

Author:

Franck WOLFF

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	OpenMBean() Creates a new OpenMBean instance and instrospects its child class for attributes and operations.

Method Summary

Methods

Modifier and Type	Method and Description
static OpenMBean	createMBean(java.lang.Class<?> beanClass, java.lang.Object instance) Creates a new OpenMBean by introspecting the beanClass parameter and wrapping the instance parameter.
static OpenMBean	createMBean(java.lang.Object instance) Creates a new OpenMBean by introspecting and wrapping the instance parameter.
java.lang.Object	getAttribute(java.lang.String attribute)
javax.management.AttributeList	getAttributes(java.lang.String[] names)
javax.management.MBeanInfo	getMBeanInfo()
java.lang.Object	invoke(java.lang.String actionName, java.lang.Object[] params, java.lang.String[] signature)
void	setAttribute(javax.management.Attribute attribute)
javax.management.AttributeList	setAttributes(javax.management.AttributeList attributes)

Methods inherited from class java.lang.Object

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

Constructor Detail

OpenMBean

protected OpenMBean()

Creates a new OpenMBean instance and instrospects its child class for attributes and operations.

Method Detail

createMBean

public static OpenMBean createMBean(java.lang.Object instance)

Creates a new OpenMBean by introspecting and wrapping the instance parameter. This method search for an interface named instance.getClass().getSimpleName() + "MBean" and, if it finds it, uses it for introspection. Otherwise, the class of the instance object is used instead.

Parameters:

instance - an instance of a bean to introspect.

Returns:

a new OpenMBean instance that wraps the instance bean.

createMBean

public static OpenMBean createMBean(java.lang.Class<?> beanClass,
                    java.lang.Object instance)

Creates a new OpenMBean by introspecting the beanClass parameter and wrapping the instance parameter.

Parameters:

beanClass - a class (or interface) used for introspection.

instance - the bean to encapsulate.

Returns:

a new OpenMBean instance that wraps the instance bean.

Throws:

java.lang.IllegalArgumentException - if instance is not an instance of beanClass.

getAttribute

public java.lang.Object getAttribute(java.lang.String attribute)
                              throws javax.management.AttributeNotFoundException,
                                     javax.management.MBeanException,
                                     javax.management.ReflectionException

Specified by:

getAttribute in interface javax.management.DynamicMBean

Throws:

javax.management.AttributeNotFoundException

javax.management.MBeanException

javax.management.ReflectionException

getAttributes

public javax.management.AttributeList getAttributes(java.lang.String[] names)

Specified by:

getAttributes in interface javax.management.DynamicMBean

getMBeanInfo

public javax.management.MBeanInfo getMBeanInfo()

Specified by:

getMBeanInfo in interface javax.management.DynamicMBean

invoke

public java.lang.Object invoke(java.lang.String actionName,
                      java.lang.Object[] params,
                      java.lang.String[] signature)
                        throws javax.management.MBeanException,
                               javax.management.ReflectionException

Specified by:

invoke in interface javax.management.DynamicMBean

Throws:

javax.management.MBeanException

javax.management.ReflectionException

setAttribute

public void setAttribute(javax.management.Attribute attribute)
                  throws javax.management.AttributeNotFoundException,
                         javax.management.InvalidAttributeValueException,
                         javax.management.MBeanException,
                         javax.management.ReflectionException

Specified by:

setAttribute in interface javax.management.DynamicMBean

Throws:

javax.management.AttributeNotFoundException

javax.management.InvalidAttributeValueException

javax.management.MBeanException

javax.management.ReflectionException

setAttributes

public javax.management.AttributeList setAttributes(javax.management.AttributeList attributes)

Specified by:

setAttributes in interface javax.management.DynamicMBean