001package org.nuxeo.runtime.tomcat.dev; 002 003import java.io.IOException; 004import java.io.InputStream; 005import java.net.URL; 006import java.net.URLClassLoader; 007import java.util.Enumeration; 008 009/* 010 * (C) Copyright 2006-2010 Nuxeo SAS (http://nuxeo.com/) and contributors. 011 * 012 * All rights reserved. This program and the accompanying materials 013 * are made available under the terms of the GNU Lesser General Public License 014 * (LGPL) version 2.1 which accompanies this distribution, and is available at 015 * http://www.gnu.org/licenses/lgpl.html 016 * 017 * This library is distributed in the hope that it will be useful, 018 * but WITHOUT ANY WARRANTY; without even the implied warranty of 019 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 020 * Lesser General Public License for more details. 021 * 022 * Contributors: 023 * bstefanescu 024 */ 025 026/** 027 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 028 */ 029public class LocalURLClassLoader extends URLClassLoader implements LocalClassLoader { 030 031 public LocalURLClassLoader(ClassLoader parent) { 032 super(new URL[0], parent); 033 } 034 035 public LocalURLClassLoader(URL[] urls, ClassLoader parent) { 036 super(urls == null ? new URL[0] : urls, parent); 037 } 038 039 @Override 040 public void addURL(URL url) { 041 super.addURL(url); 042 } 043 044 @Override 045 public Class<?> loadLocalClass(String name, boolean resolve) throws ClassNotFoundException { 046 // do not look into parent 047 synchronized (getParent()) { 048 Class<?> clazz = findLoadedClass(name); 049 050 if (clazz == null) { 051 clazz = findClass(name); 052 } 053 054 if (resolve) { 055 resolveClass(clazz); 056 } 057 058 return clazz; 059 } 060 } 061 062 @Override 063 public URL getLocalResource(String name) { 064 return findResource(name); 065 } 066 067 @Override 068 public Enumeration<URL> getLocalResources(String name) throws IOException { 069 return findResources(name); 070 } 071 072 @Override 073 public InputStream getLocalResourceAsStream(String name) throws IOException { 074 URL location = getLocalResource(name); 075 if (location == null) { 076 return null; 077 } 078 return location.openStream(); 079 } 080 081}