org.graphwalker.java.test.IsolatedClassLoader Maven / Gradle / Ivy
package org.graphwalker.java.test;
/*
* #%L
* GraphWalker Java
* %%
* Copyright (C) 2005 - 2014 GraphWalker
* %%
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* #L%
*/
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author Nils Olsson
*/
public final class IsolatedClassLoader extends URLClassLoader {
private static final Logger logger = LoggerFactory.getLogger(IsolatedClassLoader.class);
public IsolatedClassLoader(List urls) {
this(convert(urls));
}
public IsolatedClassLoader(URL[] urls) {
super(urls, getParentClassLoader());
}
private static ClassLoader getParentClassLoader() {
ClassLoader systemClassLoader = ClassLoader.getSystemClassLoader();
if (systemClassLoader != null) {
return systemClassLoader.getParent();
}
return null;
}
private static URL[] convert(List urls) {
List urlList = new ArrayList<>();
for (String url : urls) {
try {
urlList.add(new File(url).toURI().toURL());
} catch (MalformedURLException e) {
logger.error(e.getMessage());
throw new RuntimeException(e);
}
}
return urlList.toArray(new URL[urlList.size()]);
}
}