| /* |
| * $Id$ |
| * |
| * Copyright 2003 (C) Jochen Theodorou. All Rights Reserved. |
| * |
| * Redistribution and use of this software and associated documentation |
| * ("Software"), with or without modification, are permitted provided that the |
| * following conditions are met: 1. Redistributions of source code must retain |
| * copyright statements and notices. Redistributions must also contain a copy |
| * of this document. 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the distribution. 3. |
| * The name "groovy" must not be used to endorse or promote products derived |
| * from this Software without prior written permission of The Codehaus. For |
| * written permission, please contact info@codehaus.org. 4. Products derived |
| * from this Software may not be called "groovy" nor may "groovy" appear in |
| * their names without prior written permission of The Codehaus. "groovy" is a |
| * registered trademark of The Codehaus. 5. Due credit should be given to The |
| * Codehaus - http://groovy.codehaus.org/ |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| * |
| */ |
| package org.codehaus.groovy.runtime; |
| |
| import java.security.ProtectionDomain; |
| import java.util.HashMap; |
| |
| /** |
| * Reflector creation helper. This class is used to define the Refloctor classes. |
| * For each ClassLoader such a Loader will be created by the MetaClass. |
| * The only special about this loader is, that it knows the class Reflector, |
| * which is the base class of all runtime created Reflectors. |
| * |
| * @author <a href="mailto:blackdrag@gmx.org">Jochen Theodorou</a> |
| * @version $Revision$ |
| */ |
| public class ReflectorLoader extends ClassLoader { |
| private HashMap loadedClasses = new HashMap(); |
| |
| /** |
| * returns the Reflector class. |
| * |
| * @return the Reflector class if the name matches |
| * @throws ClassNotFoundException if the name is not matching Reflector |
| * @see Reflector |
| */ |
| protected Class findClass(String name) throws ClassNotFoundException { |
| if (delegatationLoader==null) return super.loadClass(name); |
| return delegatationLoader.loadClass(name); |
| } |
| |
| /** |
| * helper method to define Reflector classes |
| * @param name of the Reflector |
| * @param bytecode the bytecode |
| * @param domain the protection domain |
| * @return the generated class |
| */ |
| public Class defineClass(String name, byte[] bytecode, ProtectionDomain domain) { |
| Class c = defineClass(name, bytecode, 0, bytecode.length, domain); |
| synchronized(loadedClasses) { loadedClasses.put(name,c); } |
| resolveClass(c); |
| return c; |
| } |
| |
| /** |
| * creates a RelfectorLoader. |
| * @param parent the parent loader. This should never be null! |
| */ |
| public ReflectorLoader(ClassLoader parent) { |
| super(parent); |
| delegatationLoader = getClass().getClassLoader(); |
| } |
| |
| public Class getLoadedClass(String name) { |
| synchronized (loadedClasses) { |
| return (Class)loadedClasses.get(name); |
| } |
| } |
| |
| private ClassLoader delegatationLoader; |
| } |