org.mule.runtime.oauth.internal.util

Class ClassLoaderUtils

java.lang.Object

org.mule.runtime.oauth.internal.util.ClassLoaderUtils

public class ClassLoaderUtils
extends Object

Set of utils loading resources and classes.

Since:

1.0

Constructor Summary

Constructors

Constructor and Description
ClassLoaderUtils()

Method Summary

Modifier and Type	Method and Description
static void	setContextClassLoader(Thread thread, ClassLoader currentClassLoader, ClassLoader newClassLoader) Sets newClassLoader as the context class loader for the thread, as long as said classloader is not the same instance as currentClassLoader.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassLoaderUtils

public ClassLoaderUtils()

Method Detail

setContextClassLoader

public static void setContextClassLoader(Thread thread,
                                         ClassLoader currentClassLoader,
                                         ClassLoader newClassLoader)

Sets newClassLoader as the context class loader for the thread, as long as said classloader is not the same instance as currentClassLoader.

Since obtaining and setting the context classloader from a thread are expensive operations, the purpose of this method is to avoid performing those operations when possible, which is why the two classloaders are tested not to be the same before performing the set operation. For this method to make sense, currentClassLoader should actually be the current context classloader from the thread.

This is how a typical use should look like:

 Thread thread = Thread.currentThread();
 ClassLoader currentClassLoader = thread.getContextClassLoader();
 ClassLoader newClassLoader = getNewContextClassLoader(); // this one depends on your logic
 ClassUtils.setContextClassLoader(thread, currentClassLoader, newClassLoader);
 try {
   // execute your logic
 } finally {
   // set things back as they were by reversing the arguments order
   ClassUtils.setContextClassLoader(thread, newClassLoader, currentClassLoader);
 }
 

Parameters:

thread - the thread which context classloader is to be changed

currentClassLoader - the thread's current context classloader

newClassLoader - the new classloader to be set