| // Copyright 2004 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry.enhance; |
| |
| import java.security.ProtectionDomain; |
| |
| import org.apache.tapestry.ApplicationRuntimeException; |
| import org.apache.tapestry.Tapestry; |
| |
| /** |
| * A class loader that can be used to create new classes |
| * as needed. |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * @since 3.0 |
| * |
| **/ |
| |
| public class EnhancedClassLoader extends ClassLoader |
| { |
| |
| public EnhancedClassLoader(ClassLoader parentClassLoader) |
| { |
| super(parentClassLoader); |
| } |
| |
| /** |
| * Defines the new class. |
| * |
| * @throws ApplicationRuntimeException if defining the class fails. |
| * |
| **/ |
| |
| public Class defineClass(String enhancedClassName, byte[] byteCode, ProtectionDomain domain) |
| { |
| try |
| { |
| return defineClass(enhancedClassName, byteCode, 0, byteCode.length, domain); |
| } |
| catch (Throwable ex) |
| { |
| throw new ApplicationRuntimeException( |
| Tapestry.format( |
| "EnhancedClassLoader.unable-to-define-class", |
| enhancedClassName, |
| ex.getMessage()), |
| ex); |
| } |
| } |
| } |