org.jgroups.jmx

Class ResourceDMBean

java.lang.Object

org.jgroups.jmx.ResourceDMBean

All Implemented Interfaces:

javax.management.DynamicMBean

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

A DynamicMBean wrapping an annotated object instance and exposing attributes annotated with @ManagedAttribute and operations annotated with @ManagedOperation.

Author:

Chris Mills, Vladimir Blagojevic, Bela Ban

See Also:

ManagedAttribute, ManagedOperation, MBean

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ResourceDMBean.Accessor
protected static class	ResourceDMBean.AttributeEntry
static class	ResourceDMBean.FieldAccessor
static class	ResourceDMBean.MethodAccessor
protected static class	ResourceDMBean.NoopAccessor

Field Summary

Fields

Modifier and Type	Field and Description
protected javax.management.MBeanAttributeInfo[]	attrInfo
protected java.util.HashMap<java.lang.String,ResourceDMBean.AttributeEntry>	atts
protected boolean	expose_all
protected Log	log
protected static java.lang.String	MBEAN_DESCRITION
protected java.lang.Object	obj
protected static java.util.List<java.lang.reflect.Method>	OBJECT_METHODS
protected javax.management.MBeanOperationInfo[]	opInfo
protected java.util.List<javax.management.MBeanOperationInfo>	ops
protected static java.lang.Class<?>[]	primitives

Constructor Summary

Constructors

Constructor and Description
ResourceDMBean(java.lang.Object instance)

Method Summary

Modifier and Type	Method and Description
protected void	exposeManagedAttribute(java.lang.reflect.Method method)
protected void	findFields()
protected static ResourceDMBean.Accessor	findGetter(java.lang.Object target, java.lang.String attr_name) Finds an accessor for an attribute.
protected void	findMethods()
static ResourceDMBean.Accessor	findSetter(java.lang.Object target, java.lang.String attr_name) Finds an accessor for an attribute.
protected void	fixFields() Provides field-based getter and/or setters for all attributes in atts if not present
java.lang.Object	getAttribute(java.lang.String name)
javax.management.AttributeList	getAttributes(java.lang.String[] names)
protected static java.lang.Class<?>	getClassForName(java.lang.String name)
javax.management.MBeanInfo	getMBeanInfo()
protected javax.management.Attribute	getNamedAttribute(java.lang.String name)
java.lang.Object	invoke(java.lang.String name, java.lang.Object[] args, java.lang.String[] sig)
static boolean	isGetMethod(java.lang.reflect.Method method)
static boolean	isIsMethod(java.lang.reflect.Method method)
static boolean	isSetMethod(java.lang.reflect.Method method)
void	setAttribute(javax.management.Attribute attribute)
javax.management.AttributeList	setAttributes(javax.management.AttributeList list)
protected boolean	setNamedAttribute(javax.management.Attribute attribute)
protected static java.lang.String	toLowerCase(java.lang.String input) Returns a string with the first letter being lowercase

Methods inherited from class java.lang.Object

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

Field Detail

primitives

protected static final java.lang.Class<?>[] primitives

MBEAN_DESCRITION

protected static final java.lang.String MBEAN_DESCRITION

See Also:

Constant Field Values

OBJECT_METHODS

protected static final java.util.List<java.lang.reflect.Method> OBJECT_METHODS

expose_all

protected final boolean expose_all

log

protected final Log log

obj

protected final java.lang.Object obj

attrInfo

protected final javax.management.MBeanAttributeInfo[] attrInfo

opInfo

protected final javax.management.MBeanOperationInfo[] opInfo

atts

protected final java.util.HashMap<java.lang.String,ResourceDMBean.AttributeEntry> atts

ops

protected final java.util.List<javax.management.MBeanOperationInfo> ops

Constructor Detail

ResourceDMBean

public ResourceDMBean(java.lang.Object instance)

Method Detail

getMBeanInfo

public javax.management.MBeanInfo getMBeanInfo()

Specified by:

getMBeanInfo in interface javax.management.DynamicMBean

getAttribute

public java.lang.Object getAttribute(java.lang.String name)

Specified by:

getAttribute in interface javax.management.DynamicMBean

setAttribute

public void setAttribute(javax.management.Attribute attribute)

Specified by:

setAttribute in interface javax.management.DynamicMBean

getAttributes

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

Specified by:

getAttributes in interface javax.management.DynamicMBean

setAttributes

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

Specified by:

setAttributes in interface javax.management.DynamicMBean

invoke

public java.lang.Object invoke(java.lang.String name,
                               java.lang.Object[] args,
                               java.lang.String[] sig)
                        throws javax.management.MBeanException,
                               javax.management.ReflectionException

Specified by:

invoke in interface javax.management.DynamicMBean

Throws:

javax.management.MBeanException

javax.management.ReflectionException

isSetMethod

public static boolean isSetMethod(java.lang.reflect.Method method)

isGetMethod

public static boolean isGetMethod(java.lang.reflect.Method method)

isIsMethod

public static boolean isIsMethod(java.lang.reflect.Method method)

getClassForName

protected static java.lang.Class<?> getClassForName(java.lang.String name)
                                             throws java.lang.ClassNotFoundException

Throws:

java.lang.ClassNotFoundException

findMethods

protected void findMethods()

fixFields

protected void fixFields()

Provides field-based getter and/or setters for all attributes in atts if not present

exposeManagedAttribute

protected void exposeManagedAttribute(java.lang.reflect.Method method)

findGetter

protected static ResourceDMBean.Accessor findGetter(java.lang.Object target,
                                                    java.lang.String attr_name)

Finds an accessor for an attribute. Tries to find getAttrName(), isAttrName(), attrName() methods. If not found, tries to use reflection to get the value of attr_name. If still not found, creates a NullAccessor.

findSetter

public static ResourceDMBean.Accessor findSetter(java.lang.Object target,
                                                 java.lang.String attr_name)

Finds an accessor for an attribute. Tries to find setAttrName(), attrName() methods. If not found, tries to use reflection to set the value of attr_name. If still not found, creates a NullAccessor.

toLowerCase

protected static java.lang.String toLowerCase(java.lang.String input)

Returns a string with the first letter being lowercase

findFields

protected void findFields()

getNamedAttribute

protected javax.management.Attribute getNamedAttribute(java.lang.String name)

setNamedAttribute

protected boolean setNamedAttribute(javax.management.Attribute attribute)