/*
* JBoss, Home of Professional Open Source
* Copyright 2006, 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.structure;
import org.jboss.deployers.spi.DeploymentException;
import org.jboss.deployers.vfs.spi.structure.StructureContext;
import org.jboss.deployers.vfs.spi.structure.StructureDeployer;
import org.jboss.logging.Logger;
/**
* StructureDeployerWrapper.<p>
*
* To avoid any problems with error handling by the deployers.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 1.1 $
*/
public class StructureDeployerWrapper implements StructureDeployer
{
/** The log */
private Logger log;
/** The structure deployer */
private StructureDeployer deployer;
/** The context classloader of the person registering the deployer */
private ClassLoader classLoader;
/**
* Create a new StructureDeployerWrapper.
*
* @param deployer the deployer
*/
public StructureDeployerWrapper(StructureDeployer deployer)
{
if (deployer == null)
throw new IllegalArgumentException("Null deployer");
this.deployer = deployer;
log = Logger.getLogger(deployer.getClass());
this.classLoader = SecurityActions.getContextClassLoader();
}
public boolean determineStructure(StructureContext context) throws DeploymentException
{
if (context == null)
throw new IllegalArgumentException("Null context");
if (context.isCandidateAnnotationScanning() && deployer.isSupportsCandidateAnnotations() == false)
return false;
ClassLoader previous = SecurityActions.setContextClassLoader(classLoader);
try
{
boolean result = deployer.determineStructure(context);
if (log.isTraceEnabled())
{
if (result == false)
log.trace("Not recognised: " + context.getName());
else
log.trace("Recognised: " + context.getName());
}
return result;
}
finally
{
SecurityActions.resetContextClassLoader(previous);
}
}
public boolean isSupportsCandidateAnnotations()
{
return deployer.isSupportsCandidateAnnotations();
}
public int getRelativeOrder()
{
return deployer.getRelativeOrder();
}
public void setRelativeOrder(int order)
{
deployer.setRelativeOrder(order);
}
@Override
public boolean equals(Object obj)
{
if (obj == this)
return true;
if (obj == null || obj instanceof StructureDeployer == false)
return false;
if (obj instanceof StructureDeployerWrapper)
obj = ((StructureDeployerWrapper) obj).deployer;
return deployer.equals(obj);
}
@Override
public int hashCode()
{
return deployer.hashCode();
}
@Override
public String toString()
{
return deployer.toString();
}
}