| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.catalina.startup; |
| |
| |
| import java.lang.reflect.Method; |
| |
| import org.apache.catalina.Container; |
| import org.apache.tomcat.util.digester.Rule; |
| import org.xml.sax.Attributes; |
| |
| |
| /** |
| * <p>Rule that copies the <code>parentClassLoader</code> property from the |
| * next-to-top item on the stack (which must be a <code>Container</code>) |
| * to the top item on the stack (which must also be a |
| * <code>Container</code>).</p> |
| * |
| * @author Craig R. McClanahan |
| */ |
| public class CopyParentClassLoaderRule extends Rule { |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| |
| /** |
| * Construct a new instance of this Rule. |
| */ |
| public CopyParentClassLoaderRule() { |
| } |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Handle the beginning of an XML element. |
| * |
| * @param attributes The attributes of this element |
| * |
| * @exception Exception if a processing error occurs |
| */ |
| @Override |
| public void begin(String namespace, String name, Attributes attributes) |
| throws Exception { |
| |
| if (digester.getLogger().isDebugEnabled()) |
| digester.getLogger().debug("Copying parent class loader"); |
| Container child = (Container) digester.peek(0); |
| Object parent = digester.peek(1); |
| Method method = |
| parent.getClass().getMethod("getParentClassLoader", new Class[0]); |
| ClassLoader classLoader = |
| (ClassLoader) method.invoke(parent, new Object[0]); |
| child.setParentClassLoader(classLoader); |
| |
| } |
| |
| |
| } |