/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat 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.as.weld.injection;
import org.jboss.as.naming.ManagedReference;
import org.jboss.as.naming.ManagedReferenceFactory;
import org.jboss.as.weld.WeldContainer;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import org.jboss.weld.ejb.spi.EjbDescriptor;
import org.jboss.weld.manager.BeanManagerImpl;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
/**
* Managed reference factory that can be used to create and inject components.
*
* @author Stuart Douglas
*/
public class WeldManagedReferenceFactory implements ManagedReferenceFactory, Service<WeldManagedReferenceFactory> {
private final Class<?> componentClass;
private final InjectedValue<WeldContainer> weldContainer;
private final String ejbName;
private final Set<Class<?>> interceptorClasses;
private final Map<Class<?>, WeldEEInjection> interceptorInjections = new HashMap<Class<?>, WeldEEInjection>();
private final ClassLoader classLoader;
private final String beanDeploymentArchiveId;
private WeldEEInjection injectionTarget;
private Bean<?> bean;
private BeanManagerImpl beanManager;
public WeldManagedReferenceFactory(Class<?> componentClass, String ejbName, final Set<Class<?>> interceptorClasses, final ClassLoader classLoader, final String beanDeploymentArchiveId) {
this.componentClass = componentClass;
this.ejbName = ejbName;
this.beanDeploymentArchiveId = beanDeploymentArchiveId;
this.weldContainer = new InjectedValue<WeldContainer>();
this.interceptorClasses = interceptorClasses;
this.classLoader = classLoader;
}
@Override
public ManagedReference getReference() {
final CreationalContext<?> ctx;
if (bean == null) {
ctx = beanManager.createCreationalContext(null);
} else {
ctx = beanManager.createCreationalContext(bean);
}
final Object instance = injectionTarget.produce(ctx);
return new WeldManagedReference(ctx, instance, injectionTarget, interceptorInjections);
}
public ManagedReference injectExistingReference(final ManagedReference existing) {
final CreationalContext<?> ctx;
if (bean == null) {
ctx = beanManager.createCreationalContext(null);
} else {
ctx = beanManager.createCreationalContext(bean);
}
final Object instance = existing.getInstance();
injectionTarget.inject(instance, ctx);
return new ManagedReference() {
@Override
public void release() {
try {
existing.release();
} finally {
ctx.release();
}
}
@Override
public Object getInstance() {
return instance;
}
};
}
@Override
public synchronized void start(final StartContext context) throws StartException {
final ClassLoader cl = SecurityActions.getContextClassLoader();
try {
SecurityActions.setContextClassLoader(classLoader);
beanManager = (BeanManagerImpl) weldContainer.getValue().getBeanManager(beanDeploymentArchiveId);
for (final Class<?> interceptor : interceptorClasses) {
interceptorInjections.put(interceptor, WeldEEInjection.createWeldEEInjection(interceptor, null, beanManager));
}
if (ejbName != null) {
EjbDescriptor<Object> descriptor = beanManager.getEjbDescriptor(ejbName);
//may happen if the EJB was vetoed
if (descriptor != null) {
bean = beanManager.getBean(descriptor);
}
}
injectionTarget = WeldEEInjection.createWeldEEInjection(componentClass, bean, beanManager);
} finally {
SecurityActions.setContextClassLoader(cl);
}
}
@Override
public synchronized void stop(final StopContext context) {
injectionTarget = null;
interceptorInjections.clear();
bean = null;
}
@Override
public synchronized WeldManagedReferenceFactory getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
public InjectedValue<WeldContainer> getWeldContainer() {
return weldContainer;
}
}