/*
* JBoss, Home of Professional Open Source
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* 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.ejb.deployers;
import java.lang.reflect.AnnotatedElement;
import java.util.Collection;
import java.util.HashSet;
import org.jboss.deployers.spi.DeploymentException;
import org.jboss.deployers.spi.deployer.DeploymentStages;
import org.jboss.deployers.spi.deployer.helpers.AbstractDeployer;
import org.jboss.deployers.structure.spi.DeploymentUnit;
import org.jboss.deployment.AnnotationMetaDataDeployer;
import org.jboss.metadata.annotation.creator.ejb.InterceptorMetaDataCreator;
import org.jboss.metadata.annotation.finder.AnnotationFinder;
import org.jboss.metadata.annotation.finder.DefaultAnnotationFinder;
import org.jboss.metadata.ear.jboss.JBossAppMetaData;
import org.jboss.metadata.ejb.jboss.JBoss50MetaData;
import org.jboss.metadata.ejb.jboss.JBossAssemblyDescriptorMetaData;
import org.jboss.metadata.ejb.jboss.JBossMetaData;
import org.jboss.metadata.ejb.spec.EjbJarMetaData;
import org.jboss.metadata.ejb.spec.InterceptorsMetaData;
import org.jboss.metadata.javaee.spec.SecurityRolesMetaData;
/**
* A deployer that merges annotation metadata, xml metadata, and jboss metadata
* into a merged JBossMetaData. It also incorporates ear level overrides from
* the top level JBossAppMetaData attachment.
*
* @author Scott.Stark@jboss.org
* @author adrian@jboss.org
* @version $Revision: 103199 $
*/
public class MergedJBossMetaDataDeployer extends AbstractDeployer
{
public static final String EJB_MERGED_ATTACHMENT_NAME = "merged."+JBossMetaData.class.getName();
/**
* Create a new JBossEjbParsingDeployer.
*/
public MergedJBossMetaDataDeployer()
{
setStage(DeploymentStages.POST_CLASSLOADER);
// ejb-jar.xml metadata
addInput(EjbJarMetaData.class);
// jboss.xml metadata
addInput(JBossMetaData.class);
// annotated metadata view
addInput(AnnotationMetaDataDeployer.EJB_ANNOTATED_ATTACHMENT_NAME);
// Output is the merge JBossMetaData view
setOutput(JBossMetaData.class);
//
addOutput(EJB_MERGED_ATTACHMENT_NAME);
}
public void deploy(DeploymentUnit unit) throws DeploymentException
{
EjbJarMetaData ejbJarMetaData = unit.getAttachment(EjbJarMetaData.class);
JBossMetaData metaData = unit.getAttachment(JBossMetaData.class);
// Check for an annotated view
String key = AnnotationMetaDataDeployer.EJB_ANNOTATED_ATTACHMENT_NAME;
JBossMetaData annotatedMetaData = unit.getAttachment(key, JBossMetaData.class);
if(ejbJarMetaData == null && metaData == null && annotatedMetaData == null)
return;
JBossMetaData specMetaData = new JBoss50MetaData();
if(ejbJarMetaData != null)
{
specMetaData.merge(null, ejbJarMetaData);
if(annotatedMetaData != null)
{
JBossMetaData specMerged = new JBoss50MetaData();
specMerged.merge(specMetaData, annotatedMetaData);
specMetaData = specMerged;
}
}
else
specMetaData = annotatedMetaData;
// Create a merged view
JBossMetaData mergedMetaData = new JBossMetaData();
mergedMetaData.merge(metaData, specMetaData);
// Incorporate any ear level overrides
DeploymentUnit topUnit = unit.getTopLevel();
if(topUnit != null && topUnit.getAttachment(JBossAppMetaData.class) != null)
{
JBossAppMetaData earMetaData = topUnit.getAttachment(JBossAppMetaData.class);
// Security domain
String securityDomain = earMetaData.getSecurityDomain();
if(securityDomain != null && mergedMetaData.getSecurityDomain() == null)
mergedMetaData.setSecurityDomain(securityDomain);
//Security Roles
SecurityRolesMetaData earSecurityRolesMetaData = earMetaData.getSecurityRoles();
if(earSecurityRolesMetaData != null)
{
JBossAssemblyDescriptorMetaData jadmd = mergedMetaData.getAssemblyDescriptor();
if( jadmd == null)
{
jadmd = new JBossAssemblyDescriptorMetaData();
mergedMetaData.setAssemblyDescriptor(jadmd);
}
SecurityRolesMetaData mergedSecurityRolesMetaData = jadmd.getSecurityRoles();
if(mergedSecurityRolesMetaData == null)
jadmd.setSecurityRoles(earSecurityRolesMetaData);
//perform a merge to rebuild the principalVersusRolesMap
if(mergedSecurityRolesMetaData != null )
{
mergedSecurityRolesMetaData.merge(mergedSecurityRolesMetaData,
earSecurityRolesMetaData);
}
}
}
// Create interceptors metadata by processing interceptor classes (from the merged
// jboss metadata)
Collection<String> interceptorClassNames = JBossMetaData.getAllInterceptorClasses(mergedMetaData);
Collection<Class<?>> interceptorClasses = null;
try
{
interceptorClasses = this.loadClasses(unit.getClassLoader(), interceptorClassNames);
}
catch (ClassNotFoundException cnfe)
{
throw new DeploymentException("Exception while loading interceptor classes for unit " + unit.getName(), cnfe);
}
// Process the interceptor classes
AnnotationFinder<AnnotatedElement> annotationFinder = new DefaultAnnotationFinder<AnnotatedElement>();
InterceptorMetaDataCreator interceptorMetaDataCreator = new InterceptorMetaDataCreator(annotationFinder);
// create interceptors metadata from the interceptor classes
InterceptorsMetaData annotatedInterceptorsMetaData = interceptorMetaDataCreator.create(interceptorClasses);
InterceptorsMetaData mergedInterceptorsMetaData = new InterceptorsMetaData();
// merge the interceptors metadata
mergedInterceptorsMetaData.merge(mergedMetaData.getInterceptors(), annotatedInterceptorsMetaData);
// now set the merged interceptors metadata into the merged jboss metadata
mergedMetaData.setInterceptors(mergedInterceptorsMetaData);
// Output the merged JBossMetaData
unit.getTransientManagedObjects().addAttachment(JBossMetaData.class, mergedMetaData);
unit.addAttachment(EJB_MERGED_ATTACHMENT_NAME, mergedMetaData, JBossMetaData.class);
}
private Collection<Class<?>> loadClasses(ClassLoader cl, Iterable<String> classNames) throws ClassNotFoundException
{
Collection<Class<?>> interceptorClasses = new HashSet<Class<?>>();
for (String interceptorClassName : classNames)
{
interceptorClasses.add(cl.loadClass(interceptorClassName));
}
return interceptorClasses;
}
}