org.kuali.rice.core.api.util
Class ContextClassLoaderProxy

java.lang.Object
  org.kuali.rice.core.api.util.reflect.BaseInvocationHandler
      org.kuali.rice.core.api.util.reflect.BaseTargetedInvocationHandler
          org.kuali.rice.core.api.util.ContextClassLoaderProxy

All Implemented Interfaces:

InvocationHandler, TargetedInvocationHandler

public class ContextClassLoaderProxy
extends BaseTargetedInvocationHandler

A Proxy that sets the thread Context ClassLoader before invocation of the proxied object, and resets it back afterwards.

Author:

Kuali Rice Team (rice.collab@kuali.org)

Constructor Summary

ContextClassLoaderProxy(ClassLoader classLoader, Object target)

Method Summary

static Class<?>[]	getInterfacesToProxy(ClassLoader proxyClassLoader, Object proxiedObject) Determines the interfaces which need to be proxied and are visable to the given proxy ClassLoader.
static Class<?>[]	getInterfacesToProxy(Object proxiedObject)
protected Object	invokeInternal(Object proxy, Method m, Object[] args)
static Object	wrap(Object proxiedObject)
static Object	wrap(Object proxiedObject, Class<?>[] classesToProxy)
static Object	wrap(Object proxiedObject, Class<?>[] classesToProxy, ClassLoader classLoader)
static Object	wrap(Object proxiedObject, Class<?>[] classesToProxy, ClassLoader proxyClassLoader, ClassLoader objectClassLoader) Convenience method that wraps a specified object with a ContextClassLoaderProxy, with a specified handler classloader and proxy classloader.
static Object	wrap(Object proxiedObject, ClassLoader classLoader)
static Object	wrap(Object proxiedObject, ClassLoader proxyClassLoader, ClassLoader objectClassLoader)

Methods inherited from class org.kuali.rice.core.api.util.reflect.BaseTargetedInvocationHandler

getTarget, setTarget

Methods inherited from class org.kuali.rice.core.api.util.reflect.BaseInvocationHandler

invoke, proxyEquals, proxyHashCode, proxyToString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.reflect.InvocationHandler

invoke

Constructor Detail

ContextClassLoaderProxy

public ContextClassLoaderProxy(ClassLoader classLoader,
                               Object target)

Method Detail

wrap

public static Object wrap(Object proxiedObject,
                          Class<?>[] classesToProxy,
                          ClassLoader proxyClassLoader,
                          ClassLoader objectClassLoader)

Convenience method that wraps a specified object with a ContextClassLoaderProxy, with a specified handler classloader and proxy classloader. If the specified object is null, or the object classloader equals the proxy classloader, the object is returned unwrapped.

Parameters:

proxiedObject - the object to proxy

proxyClassLoader - the classloader OF THE PROXY INSTANCE

objectClassLoader - the classloader to set as the context classloader prior to any invocations on the proxiedObject

Returns:

a ContextClassLoaderProxy Proxy for the proxiedObject

wrap

public static Object wrap(Object proxiedObject,
                          ClassLoader proxyClassLoader,
                          ClassLoader objectClassLoader)

wrap

public static Object wrap(Object proxiedObject,
                          ClassLoader classLoader)

wrap

public static Object wrap(Object proxiedObject,
                          Class<?>[] classesToProxy)

wrap

public static Object wrap(Object proxiedObject,
                          Class<?>[] classesToProxy,
                          ClassLoader classLoader)

wrap

public static Object wrap(Object proxiedObject)

getInterfacesToProxy

public static Class<?>[] getInterfacesToProxy(Object proxiedObject)

getInterfacesToProxy

public static Class<?>[] getInterfacesToProxy(ClassLoader proxyClassLoader,
                                              Object proxiedObject)

Determines the interfaces which need to be proxied and are visable to the given proxy ClassLoader.

invokeInternal

protected Object invokeInternal(Object proxy,
                                Method m,
                                Object[] args)
                         throws Throwable

Specified by:

invokeInternal in class BaseInvocationHandler

Throws:

Throwable