/*
* JBoss, Home of Professional Open Source
* Copyright 2006, Red Hat Middleware LLC, 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.ejb3.deployers;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.jar.Attributes;
import java.util.jar.Manifest;
import org.jboss.deployers.spi.DeploymentException;
import org.jboss.deployers.vfs.spi.structure.VFSDeploymentUnit;
import org.jboss.metadata.client.jboss.JBossClientMetaData;
import org.jboss.vfs.VFSUtils;
import org.jboss.vfs.VirtualFile;
/**
* Scan the main & super classes for annotations.
*
* @author <a href="mailto:carlo.dewolf@jboss.com">Carlo de Wolf</a>
* @author adrian@jboss.org
* @version $Revision: 101688 $
*/
public class AppClientScanningDeployer extends AbstractOptionalVFSRealDeployer<JBossClientMetaData>
{
public AppClientScanningDeployer()
{
super(JBossClientMetaData.class);
setOutput(JBossClientMetaData.class);
}
/* (non-Javadoc)
* @see org.jboss.deployers.plugins.deployer.AbstractSimpleDeployer#deploy(org.jboss.deployers.spi.deployer.DeploymentUnit)
*/
@Override
public void deploy(VFSDeploymentUnit unit, JBossClientMetaData dd) throws DeploymentException
{
// FIXME: implement metadata complete
// if(dd != null && dd.getMetaDataComplete())
// return;
// for now the EJB3 client deployer handles all
if(dd != null)
return;
try
{
String mainClassName = getMainClassName(unit);
if(mainClassName == null)
return;
Class<?> mainClass = unit.getClassLoader().loadClass(mainClassName);
log.info("mainClass = " + mainClass);
if(hasAnnotations(mainClass))
{
// add a dummy application client dd to fire up the ejb3 client deployer
dd = new JBossClientMetaData();
unit.addAttachment(JBossClientMetaData.class, dd);
}
}
catch(ClassNotFoundException e)
{
throw new DeploymentException(e);
}
catch(IOException e)
{
throw new DeploymentException(e);
}
}
// TODO: integrate with Ejb3ClientDeployer.getMainClassName
private String getMainClassName(VFSDeploymentUnit unit) throws IOException
{
VirtualFile file = unit.getMetaDataFile("MANIFEST.MF");
log.trace("parsing " + file);
if(file == null)
{
return null;
}
Manifest mf = VFSUtils.readManifest(file);
Attributes attrs = mf.getMainAttributes();
String className = attrs.getValue(Attributes.Name.MAIN_CLASS);
return className;
}
// TODO: should we check for type of annotations?
private boolean hasAnnotations(Class<?> cls)
{
if(cls == null)
return false;
// Note: this also returns true if super class has annotations
if(cls.getAnnotations().length > 0)
return true;
for(Field f : cls.getDeclaredFields())
{
if(f.getAnnotations().length > 0)
return true;
}
return hasAnnotations(cls.getSuperclass());
}
}