/*
* JBoss, Home of Professional Open Source.
* Copyright 2010, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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.weld.integration.injection;
import org.jboss.injection.manager.spi.InjectionContext;
import org.jboss.injection.manager.spi.InjectionException;
import org.jboss.injection.manager.spi.Injector;
import org.jboss.metadata.ejb.jboss.JBossEnterpriseBeanMetaData;
import org.jboss.weld.bootstrap.spi.BeanDeploymentArchive;
import org.jboss.weld.integration.deployer.env.helpers.BootstrapBean;
import org.jboss.weld.manager.api.WeldManager;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.InjectionTarget;
import java.util.concurrent.atomic.AtomicReference;
/**
* @author Marius Bogoevici
*/
public class Jsr299InterceptorInjector implements Injector
{
private BootstrapBean bootstrapBean;
private String bdaId;
private AtomicReference<WeldManager> weldManagerRef;
private JBossEnterpriseBeanMetaData enterpriseBeanMetaData;
public Jsr299InterceptorInjector(String bdaId, JBossEnterpriseBeanMetaData enterpriseBeanMetaData)
{
this.bdaId = bdaId;
this.enterpriseBeanMetaData = enterpriseBeanMetaData;
this.weldManagerRef = new AtomicReference<WeldManager>();
}
public void setBootstrapBean(BootstrapBean bootstrapBean)
{
this.bootstrapBean = bootstrapBean;
}
public <T> void inject(InjectionContext<T> injectionContext) throws InjectionException
{
if (isInterceptor(injectionContext.getInjectionTarget())) {
WeldManager weldManager = initWeldManagerIfNecessary();
Object instance = injectionContext.getInjectionTarget();
if (weldManager == null)
throw new IllegalArgumentException("Null bean manager.");
CreationalContext<Object> creationalContext = weldManager.createCreationalContext(null);
InjectionTarget<Object> injectionTarget = (InjectionTarget<Object>) weldManager.fireProcessInjectionTarget(weldManager.createAnnotatedType(instance.getClass()));
injectionTarget.inject(instance, creationalContext);
}
injectionContext.proceed();
}
private WeldManager initWeldManagerIfNecessary()
{
WeldManager weldManager = weldManagerRef.get();
if (weldManager == null)
{
weldManager = locateWeldManager();
}
weldManagerRef.compareAndSet(null, weldManager);
return weldManager;
}
private WeldManager locateWeldManager()
{
BeanDeploymentArchive foundBeanDeploymentArchive = null;
for (BeanDeploymentArchive beanDeploymentArchive: bootstrapBean.getDeployment().getBeanDeploymentArchives())
{
if (beanDeploymentArchive.getId().equals(bdaId))
{
foundBeanDeploymentArchive = beanDeploymentArchive;
}
}
if (foundBeanDeploymentArchive == null)
{
throw new IllegalStateException("Cannot find BeanManager for BeanDeploymentArchive with id=" + bdaId);
}
return bootstrapBean.getBootstrap().getManager(foundBeanDeploymentArchive);
}
private boolean isInterceptor(Object instance)
{
return !instance.getClass().getName().equals(enterpriseBeanMetaData.getEjbClass());
}
public void release()
{
bootstrapBean = null;
weldManagerRef.set(null);
}
}