/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.aop.asintegration.jboss4;
import java.io.File;
import java.io.FileOutputStream;
import java.net.URL;
import java.security.ProtectionDomain;
import org.jboss.aop.classpool.AOPClassPool;
import org.jboss.mx.loading.RepositoryClassLoader;
import javassist.CannotCompileException;
import javassist.ClassPool;
import javassist.CtClass;
import javassist.scopedpool.ScopedClassPoolRepository;
/**
* Comment
*
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @author adrian@jboss.org
* @version $Revision: 79518 $
*/
public class JBossClassPool extends AOPClassPool
{
/**
* Used for dynamically created classes (see loadClass(String, byte[]), ClassLoader)
*/
protected File tempdir = null;
protected URL tempURL = null;
// For loadClass tmpdir creation for UCL
protected final Object tmplock = new Object();
protected JBossClassPool(ClassLoader cl, ClassPool src, ScopedClassPoolRepository repository, File tmp, URL tmpURL)
{
super(cl, src, repository);
tempdir = tmp;
tempURL = tmpURL;
}
protected JBossClassPool(ClassPool src, ScopedClassPoolRepository repository)
{
super(src, repository);
}
public boolean isUnloadedClassLoader()
{
if (getClassLoader() instanceof RepositoryClassLoader)
{
RepositoryClassLoader rcl = (RepositoryClassLoader) getClassLoader();
return rcl.getLoaderRepository() == null;
}
return false;
}
public Class<?> toClass(CtClass cc, ClassLoader loader, ProtectionDomain domain)
throws CannotCompileException
{
lockInCache(cc);
if (getClassLoader() == null || tempdir == null)
{
return super.toClass(cc, loader, domain);
}
Class<?> dynClass = null;
try
{
File classFile = null;
String classFileName = getResourceName(cc.getName());
// Write the clas file to the tmpdir
synchronized (tmplock)
{
classFile = new File(tempdir, classFileName);
File pkgDirs = classFile.getParentFile();
pkgDirs.mkdirs();
FileOutputStream stream = new FileOutputStream(classFile);
stream.write(cc.toBytecode());
stream.flush();
stream.close();
classFile.deleteOnExit();
}
// We have to clear Blacklist caches or the class will never
// be found
//((UnifiedClassLoader)dcl).clearBlacklists();
// To be backward compatible
RepositoryClassLoader rcl = (RepositoryClassLoader) getClassLoader();
rcl.clearClassBlackList();
rcl.clearResourceBlackList();
// Now load the class through the cl
dynClass = getClassLoader().loadClass(cc.getName());
}
catch (Exception ex)
{
ClassFormatError cfe = new ClassFormatError("Failed to load dyn class: " + cc.getName());
cfe.initCause(ex);
throw cfe;
}
return dynClass;
}
@Override
protected boolean isLocalResource(String resourceName)
{
if (super.isLocalResource(resourceName))
{
return true;
}
File file = new File(tempdir, resourceName);
if (file.exists())
{
return true;
}
return false;
}
}