/*
* JBoss, Home of Professional Open Source
* Copyright 2008, 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.deployers.vfs.plugins.classloader;
import java.net.URL;
import java.util.List;
import org.jboss.classloading.spi.metadata.ClassLoadingMetaData;
import org.jboss.deployers.spi.DeploymentException;
import org.jboss.deployers.spi.deployer.DeploymentStages;
import org.jboss.deployers.vfs.spi.deployer.AbstractVFSRealDeployer;
import org.jboss.deployers.vfs.spi.structure.VFSDeploymentUnit;
import org.jboss.util.id.GUID;
import org.jboss.virtual.MemoryFileFactory;
import org.jboss.virtual.VirtualFile;
/**
* TempURLDeployer.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 1.1 $
*/
public class InMemoryClassesDeployer extends AbstractVFSRealDeployer
{
/** The name of the dynamic class root */
public static final String DYNAMIC_CLASS_URL_KEY = "DYNAMIC_CLASS_URL_KEY";
/** The name of the dynamic class root */
public static final String DYNAMIC_CLASS_KEY = "DYNAMIC_CLASS_KEY";
/**
* Create a new TempURLDeployer.
*/
public InMemoryClassesDeployer()
{
// Make it run before the classloader describe deployer
setStage(DeploymentStages.DESCRIBE);
setOutput(ClassLoadingMetaData.class);
setTopLevelOnly(true);
}
@Override
public void deploy(VFSDeploymentUnit unit) throws DeploymentException
{
try
{
URL dynamicClassRoot = new URL("vfsmemory", new GUID().toString(), "");
MemoryFileFactory.createRoot(dynamicClassRoot);
URL classesURL = new URL(dynamicClassRoot, "classes");
VirtualFile classes = MemoryFileFactory.createDirectory(classesURL);
unit.addAttachment(DYNAMIC_CLASS_URL_KEY, dynamicClassRoot);
unit.addAttachment(DYNAMIC_CLASS_KEY, classes);
unit.prependClassPath(classes);
log.debug("Dynamic class root for " + unit.getName() + " is " + dynamicClassRoot);
}
catch (Exception e)
{
throw new DeploymentException("Error creating dynamic class root", e);
}
}
@Override
public void undeploy(VFSDeploymentUnit unit)
{
log.debug("Removing dynamic class root for " + unit.getName());
try
{
VirtualFile classes = unit.removeAttachment(DYNAMIC_CLASS_KEY, VirtualFile.class);
if (classes != null)
{
List<VirtualFile> classPath = unit.getClassPath();
if (classPath != null)
{
classPath.remove(classes);
unit.setClassPath(classPath);
}
}
}
finally
{
try
{
URL root = unit.removeAttachment(DYNAMIC_CLASS_URL_KEY, URL.class);
if (root != null)
MemoryFileFactory.deleteRoot(root);
}
catch (Exception e)
{
log.warn("Error deleting dynamic class root for " + unit.getName(), e);
}
}
}
}