| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import java.util.Enumeration; |
| import java.lang.System.LoggerFinder; |
| |
| /** |
| * A custom class loader which can hide the registered LoggerProvider |
| * depending on the value of a test.logger.hidesProvider system property. |
| * @author danielfuchs |
| */ |
| public class SystemClassLoader extends ClassLoader { |
| |
| final public boolean hidesProvider; |
| |
| public SystemClassLoader() { |
| hidesProvider = Boolean.getBoolean("test.logger.hidesProvider"); |
| } |
| public SystemClassLoader(ClassLoader parent) { |
| super(parent); |
| hidesProvider = Boolean.getBoolean("test.logger.hidesProvider"); |
| } |
| |
| boolean accept(String name) { |
| final boolean res = !name.endsWith(LoggerFinder.class.getName()); |
| if (res == false) { |
| System.out.println("Hiding " + name); |
| } |
| return res; |
| } |
| |
| @Override |
| public URL getResource(String name) { |
| if (hidesProvider && !accept(name)) { |
| return null; |
| } else { |
| return super.getResource(name); |
| } |
| } |
| |
| class Enumerator implements Enumeration<URL> { |
| final Enumeration<URL> enumeration; |
| volatile URL next; |
| Enumerator(Enumeration<URL> enumeration) { |
| this.enumeration = enumeration; |
| } |
| |
| @Override |
| public boolean hasMoreElements() { |
| if (next != null) return true; |
| if (!enumeration.hasMoreElements()) return false; |
| if (hidesProvider == false) return true; |
| next = enumeration.nextElement(); |
| if (accept(next.getPath())) return true; |
| next = null; |
| return hasMoreElements(); |
| } |
| |
| @Override |
| public URL nextElement() { |
| final URL res = next == null ? enumeration.nextElement() : next; |
| next = null; |
| if (hidesProvider == false || accept(res.getPath())) return res; |
| return nextElement(); |
| } |
| } |
| |
| @Override |
| public Enumeration<URL> getResources(String name) throws IOException { |
| final Enumeration<URL> enumeration = super.getResources(name); |
| return hidesProvider ? new Enumerator(enumeration) : enumeration; |
| } |
| |
| |
| |
| } |