1 /* 2 * $Id: ReflectorLoader.java,v 1.1 2006/05/30 18:27:48 blackdrag Exp $ 3 * 4 * Copyright 2003 (C) Jochen Theodorou. All Rights Reserved. 5 * 6 * Redistribution and use of this software and associated documentation 7 * ("Software"), with or without modification, are permitted provided that the 8 * following conditions are met: 1. Redistributions of source code must retain 9 * copyright statements and notices. Redistributions must also contain a copy 10 * of this document. 2. Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the distribution. 3. 13 * The name "groovy" must not be used to endorse or promote products derived 14 * from this Software without prior written permission of The Codehaus. For 15 * written permission, please contact info@codehaus.org. 4. Products derived 16 * from this Software may not be called "groovy" nor may "groovy" appear in 17 * their names without prior written permission of The Codehaus. "groovy" is a 18 * registered trademark of The Codehaus. 5. Due credit should be given to The 19 * Codehaus - http://groovy.codehaus.org/ 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY 22 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR 25 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 31 * DAMAGE. 32 * 33 */ 34 package org.codehaus.groovy.runtime; 35 36 import java.security.ProtectionDomain; 37 38 /*** 39 * Reflector creation helper. This class is used to define the Refloctor classes. 40 * For each ClassLoader such a Loader will be created by the MetaClass. 41 * The only special about this loader is, that it knows the class Reflector, 42 * which is the base class of all runtime created Reflectors. 43 * 44 * @author <a href="mailto:blackdrag@gmx.org">Jochen Theodorou</a> 45 * @version $Revision: 1.1 $ 46 */ 47 public class ReflectorLoader extends ClassLoader { 48 /*** 49 * returns the Reflector class. 50 * 51 * @return the Reflector class if the name matches 52 * @throws ClassNotFoundException if the name is not matching Reflector 53 * @see Reflector 54 */ 55 protected Class findClass(String name) throws ClassNotFoundException { 56 if (delegatationLoader==null) return super.loadClass(name); 57 return delegatationLoader.loadClass(name); 58 } 59 60 /*** 61 * helper method to define Reflector classes 62 * @param name of the Reflector 63 * @param bytecode the bytecode 64 * @param domain the protection domain 65 * @return the generated class 66 */ 67 public Class defineClass(String name, byte[] bytecode, ProtectionDomain domain) { 68 Class c = defineClass(name, bytecode, 0, bytecode.length, domain); 69 resolveClass(c); 70 return c; 71 } 72 73 /*** 74 * creates a RelfectorLoader. 75 * @param parent the parent loader. This should never be null! 76 */ 77 public ReflectorLoader(ClassLoader parent) { 78 super(parent!=null?parent:getSystemClassLoader()); 79 delegatationLoader = getClass().getClassLoader(); 80 } 81 82 private ClassLoader delegatationLoader; 83 }