org.jboss.as.ejb3.PrimitiveClassLoaderUtil Maven / Gradle / Ivy
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* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.ejb3;
/**
* PrimitiveClassLoaderUtil
*
* Util for centralizing the logic for handling primitive types
* during classloading. Use the {@link #loadClass(String, ClassLoader)}
* to centralize the logic of checking for primitive types to ensure that
* the {@link ClassLoader#loadClass(String)} method is not invoked for primitives.
*
* @author Jaikiran Pai
* @version $Revision: $
*/
public class PrimitiveClassLoaderUtil {
/**
* First checks if name is a primitive type. If yes, then returns
* the corresponding {@link Class} for that primitive. If it's not a primitive
* then the {@link Class#forName(String, boolean, ClassLoader)} method is invoked, passing
* it the name, false and the cl classloader
*
* @param name The class that has to be loaded
* @param cl The {@link ClassLoader} to use, if name is *not* a primitive
* @return Returns the {@link Class} corresponding to name
* @throws ClassNotFoundException If the class for name could not be found
* @see ClassLoader#loadClass(String)
*/
public static Class loadClass(String name, ClassLoader cl) throws ClassNotFoundException {
/*
* Handle Primitives
*/
if (name.equals(void.class.getName())) {
return void.class;
}
if (name.equals(byte.class.getName())) {
return byte.class;
}
if (name.equals(short.class.getName())) {
return short.class;
}
if (name.equals(int.class.getName())) {
return int.class;
}
if (name.equals(long.class.getName())) {
return long.class;
}
if (name.equals(char.class.getName())) {
return char.class;
}
if (name.equals(boolean.class.getName())) {
return boolean.class;
}
if (name.equals(float.class.getName())) {
return float.class;
}
if (name.equals(double.class.getName())) {
return double.class;
}
// Now that we know its not a primitive, lets just allow
// the passed classloader to handle the request.
// Note that we are intentionally using Class.forName(name,boolean,cl)
// to handle issues with loading array types in Java 6 http://bugs.sun.com/view_bug.do?bug_id=6434149
return Class.forName(name, false, cl);
}
}