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/* Generated by AspectJ version 1.0.5 */
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package org.apache.cactus.util;
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import java.util.ResourceBundle;
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import java.util.PropertyResourceBundle;
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import java.util.MissingResourceException;
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import java.util.Locale;
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/**
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* Utiliy methods related to class loading in a webapp environment.
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*
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* @author <a href="mailto:vmassol@apache.org">Vincent Massol</a>
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*
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* @version $Id: ClassLoaderUtils.java,v 1.2 2002/05/12 19:41:14 vmassol Exp $
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*/
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public class ClassLoaderUtils {
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/**
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* Try loading a class first by using the context class loader or by using
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* the classloader of the referrer class if the context classloader failed
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* to load the class.
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*
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* @param theClassName the name of the test class
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* @param theReferrer the class will be loaded using the classloader which
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* has loaded this referrer class
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* @return the class object the test class to call
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* @exception ClassNotFoundException if the class cannot be loaded through
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* either classloader
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*/
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public static Class loadClass(String theClassName,
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Class theReferrer) throws ClassNotFoundException {
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Class clazz = null;
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try {
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clazz = ClassLoaderUtils.loadClassFromWebappClassLoader(theClassName, theReferrer);
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} catch (Exception internalException) {
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0
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clazz = ClassLoaderUtils.loadClassFromContextClassLoader(theClassName);
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}
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return clazz;
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}
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/**
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* Try loading class using the Context class loader.
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*
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* @param theClassName the class to load
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* @return the <code>Class</code> object for the class to load
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* @exception ClassNotFoundException if the class cannot be loaded through
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* this class loader
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*/
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public static Class loadClassFromContextClassLoader(String theClassName) throws
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ClassNotFoundException {
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return Class.forName(theClassName, true, Thread.currentThread().getContextClassLoader());
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}
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/**
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* Try loading class using the Webapp class loader.
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*
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* @param theClassName the class to load
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* @param theReferrer the class will be loaded using the classloader which
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* has loaded this referrer class
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* @return the <code>Class</code> object for the class to load
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* @exception ClassNotFoundException if the class cannot be loaded through
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* this class loader
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*/
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177
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public static Class loadClassFromWebappClassLoader(String theClassName,
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Class theReferrer) throws ClassNotFoundException {
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return Class.forName(theClassName, true, theReferrer.getClassLoader());
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}
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/**
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* Try loading a resource bundle from either the context class loader or
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* the
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*
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* @param theName the resource bundle name
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* @param theReferrer the resource bundle will be loaded using the
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* classloader which has loaded this referrer class
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* @return the loaded resource bundle
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*/
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public static ResourceBundle loadPropertyResourceBundle(String theName, Class theReferrer) {
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ResourceBundle bundle;
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try {
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bundle = PropertyResourceBundle.getBundle(theName, Locale.getDefault(),
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theReferrer.getClassLoader());
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} catch (MissingResourceException e) {
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0
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bundle = PropertyResourceBundle.getBundle(theName, Locale.getDefault(),
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Thread.currentThread().getContextClassLoader());
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}
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return bundle;
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}
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/**
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* Utiliy methods related to class loading in a webapp environment.
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*
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* @author <a href="mailto:vmassol@apache.org">Vincent Massol</a>
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*
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* @version $Id: ClassLoaderUtils.java,v 1.2 2002/05/12 19:41:14 vmassol Exp $
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*/
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0
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public ClassLoaderUtils() {
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0
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super();
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}
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}
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