org.jboss.as.ejb3.remote.LocalInvocationClassCloner Maven / Gradle / Ivy
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* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.ejb3.remote;
import java.io.IOException;
import java.lang.reflect.Proxy;
import org.jboss.marshalling.cloner.ClassCloner;
/**
* {@link ClassCloner} that clones classes between class loaders, falling back
* to original class if it cannot be found in the destination class loader.
*
* @author Stuart Douglas
*/
public class LocalInvocationClassCloner implements ClassCloner {
private final ClassLoader destClassLoader;
public LocalInvocationClassCloner(final ClassLoader destClassLoader) {
this.destClassLoader = destClassLoader;
}
public Class clone(final Class original) throws IOException, ClassNotFoundException {
final String name = original.getName();
if (name.startsWith("java.")) {
return original;
} else if (original.getClassLoader() == destClassLoader) {
return original;
} else {
try {
return Class.forName(name, true, destClassLoader);
} catch (ClassNotFoundException e) {
ClassLoader current = Thread.currentThread().getContextClassLoader();
if(current != destClassLoader) {
try {
return Class.forName(name, true, current);
} catch (ClassNotFoundException ignored) {
//fall through
}
}
return original;
}
}
}
public Class cloneProxy(final Class proxyClass) throws IOException, ClassNotFoundException {
final Class[] origInterfaces = proxyClass.getInterfaces();
final Class[] interfaces = new Class[origInterfaces.length];
for (int i = 0, origInterfacesLength = origInterfaces.length; i < origInterfacesLength; i++) {
interfaces[i] = clone(origInterfaces[i]);
}
return Proxy.getProxyClass(destClassLoader, interfaces);
}
}