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Jodd Core tools and huge number of utilities.
// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
package jodd.core;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.LinkedHashSet;
import java.util.Set;
/**
* Methods that requires different implementations on various Java Platforms.
*/
public class JavaBridge {
public static URL[] getURLs(Class clazz) {
return getURLs(clazz.getClassLoader(), clazz);
}
/**
* Returns urls for the classloader
*
* @param classLoader classloader in which to find urls
* @return list of urls or {@code null} if not found
*/
public static URL[] getURLs(final ClassLoader classLoader) {
return getURLs(classLoader, JavaBridge.class);
}
private static URL[] getURLs(ClassLoader classLoader, final Class clazz) {
final Set urls = new LinkedHashSet<>();
while (classLoader != null) {
if (classLoader instanceof URLClassLoader) {
URLClassLoader urlClassLoader = (URLClassLoader) classLoader;
return urlClassLoader.getURLs();
}
URL url = classModuleUrl(classLoader, clazz);
if (url != null) {
urls.add(url);
}
classLoader = classLoader.getParent();
}
return urls.toArray(new URL[urls.size()]);
}
private static URL classModuleUrl(ClassLoader classLoader, Class clazz) {
if (clazz == null) {
return null;
}
final String name = clazz.getName().replace('.', '/') + ".class";
URL url = classLoader.getResource(name);
if (url == null) {
return null;
}
// use root
String urlString = url.toString();
int ndx = urlString.indexOf(name);
urlString = urlString.substring(0, ndx) + urlString.substring(ndx + name.length());
try {
return new URL(urlString);
} catch (MalformedURLException ignore) {
return null;
}
}
}