Package org.jolokia.client.jmxadapter

Class ToOpenTypeConverter

java.lang.Object

org.jolokia.client.jmxadapter.ToOpenTypeConverter

public class ToOpenTypeConverter
extends Object

Attempt to produce openmbean results to emulate a native JMX connection by reverse engineering type information from JSON response from Jolokia and use the appropriate converter to convert to corresponding objects

Constructor Summary

Constructors

Constructor	Description
ToOpenTypeConverter()

Method Summary

Modifier and Type	Method	Description
static void	cacheType(OpenType<?> type, String... names)	Specify type to use for an attribute, operation or an attribute within the response.
static OpenType<?>	introspectComplexTypeFrom(Class<?> klass)
static OpenType<?>	recursivelyBuildOpenType(String name, Object rawValue, String typeFromMBeanInfo)	Try to figure out open type, order of preference 1.
static Object	returnOpenTypedValue(String name, Object rawValue, String typeFromMBeanInfo)

Methods inherited from class java.lang.Object

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

Constructor Details

ToOpenTypeConverter

public ToOpenTypeConverter()

Method Details

returnOpenTypedValue

public static Object returnOpenTypedValue(String name,
 Object rawValue,
 String typeFromMBeanInfo)
                                   throws OpenDataException

Throws:

OpenDataException

recursivelyBuildOpenType

public static OpenType<?> recursivelyBuildOpenType(String name,
 Object rawValue,
 String typeFromMBeanInfo)
                                            throws OpenDataException

Try to figure out open type, order of preference 1. handle simple objects, respect type introspected from MBeanInfo if any 2. Handle arrays (comes before cached types due to issues specifying multiple return values for all the Threading overloaded methods) 3. Handle hard coded tabular return types (important for visual presentation in certain tools) 4. Use cached type for attribute/item : either hardcoded to please JConsole / JVisualVM or introspected from MBeanInfo 5. Dynamically build structured type from contents (will struggle with null values for unknown entities) 6. Fail

Throws:

OpenDataException

cacheType

public static void cacheType(OpenType<?> type,
 String... names)

Specify type to use for an attribute, operation or an attribute within the response. Syntax

   cacheType(TYPE, "ObjectName.Operation/Attribute.item(if array).attribute.innerattribute")
 

Parameters:

type - type to apply for reverse engineering

names - One or more items to type according to syntax given above

introspectComplexTypeFrom

public static OpenType<?> introspectComplexTypeFrom(Class<?> klass)
                                             throws OpenDataException

Parameters:

klass - The Java type

Returns:

OpenType deducted from Java type by reflection

Throws:

OpenDataException - When the open type is not found