| /* |
| * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0, which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| package org.glassfish.jaxb.core.util; |
| |
| import java.net.URL; |
| |
| /** |
| * Finds out where a class file is loaded from. |
| * |
| * @author |
| * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com) |
| */ |
| public class Which { |
| |
| public static String which( Class clazz ) { |
| return which( clazz.getName(), SecureLoader.getClassClassLoader(clazz)); |
| } |
| |
| /** |
| * Search the specified classloader for the given classname. |
| * Then give the return value. |
| * @param classname the fully qualified name of the class to search for |
| * @param loader the classloader to search |
| * @return the source location of the resource, or null if it wasn't found |
| */ |
| public static String which(String classname, ClassLoader loader) { |
| |
| String classnameAsResource = classname.replace('.', '/') + ".class"; |
| |
| if(loader == null) { |
| loader = SecureLoader.getSystemClassLoader(); |
| } |
| |
| URL it = loader.getResource(classnameAsResource); |
| if (it != null) { |
| return it.toString(); |
| } else { |
| return null; |
| } |
| } |
| |
| } |