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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package com.sun.xml.internal.bind.util;

import java.net.URL;

Finds out where a class file is loaded from.
Author:

    Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)/**
 * 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.
Params:
classname – the fully qualified name of the class to search for
loader – the classloader to search
Returns:
the source location of the resource, or null if it wasn't found/**
     * 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;
        }
    }

}