/*
* 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.services.bootstrap;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Set;
import javax.ejb.EJB;
import javax.enterprise.inject.spi.InjectionPoint;
import org.jboss.as.ee.component.ComponentView;
import org.jboss.as.ee.component.EEApplicationDescription;
import org.jboss.as.ee.component.EEModuleDescription;
import org.jboss.as.ee.component.ViewDescription;
import org.jboss.as.naming.ManagedReferenceFactory;
import org.jboss.as.naming.deployment.ContextNames;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceRegistry;
import org.jboss.vfs.VirtualFile;
import org.jboss.weld.injection.spi.EjbInjectionServices;
/**
* Implementation of EjbInjectionServices.
*
* @author Stuart Douglas
*/
public class WeldEjbInjectionServices implements EjbInjectionServices {
private final ServiceRegistry serviceRegistry;
private final EEModuleDescription moduleDescription;
private final EEApplicationDescription applicationDescription;
private final VirtualFile deploymentRoot;
public WeldEjbInjectionServices(ServiceRegistry serviceRegistry, EEModuleDescription moduleDescription, final EEApplicationDescription applicationDescription, final VirtualFile deploymentRoot) {
if (serviceRegistry == null) {
throw new IllegalArgumentException("serviceRegistry cannot be null");
}
if (moduleDescription == null) {
throw new IllegalArgumentException("moduleDescription cannot be null");
}
if (applicationDescription == null) {
throw new IllegalArgumentException("applicationDescription cannot be null");
}
if (deploymentRoot == null) {
throw new IllegalArgumentException("deploymentRoot cannot be null");
}
this.serviceRegistry = serviceRegistry;
this.moduleDescription = moduleDescription;
this.applicationDescription = applicationDescription;
this.deploymentRoot = deploymentRoot;
}
@Override
public Object resolveEjb(InjectionPoint injectionPoint) {
//TODO: some of this stuff should be cached
EJB ejb = injectionPoint.getAnnotated().getAnnotation(EJB.class);
if (ejb == null) {
throw new RuntimeException("@Ejb annotation not found on " + injectionPoint.getMember());
}
if (injectionPoint.getMember() instanceof Method && ((Method) injectionPoint.getMember()).getParameterTypes().length != 1) {
throw new IllegalArgumentException("Injection point represents a method which doesn't follow JavaBean conventions (must have exactly one parameter) " + injectionPoint);
}
if (!ejb.lookup().equals("")) {
final ContextNames.BindInfo ejbBindInfo = ContextNames.bindInfoFor(moduleDescription.getApplicationName(), moduleDescription.getModuleName(), moduleDescription.getModuleName(), ejb.lookup());
ServiceController<?> controller = serviceRegistry.getRequiredService(ejbBindInfo.getBinderServiceName());
ManagedReferenceFactory factory = (ManagedReferenceFactory) controller.getValue();
return factory.getReference().getInstance();
} else {
final Set<ViewDescription> viewService;
if (ejb.beanName().isEmpty()) {
if (ejb.beanInterface() != Object.class) {
viewService = applicationDescription.getComponentsForViewName(ejb.beanInterface().getName());
} else {
viewService = applicationDescription.getComponentsForViewName(getType(injectionPoint.getType()).getName());
}
} else {
if (ejb.beanInterface() != Object.class) {
viewService = applicationDescription.getComponents(ejb.beanName(), ejb.beanInterface().getName(), deploymentRoot);
} else {
viewService = applicationDescription.getComponents(ejb.beanName(), getType(injectionPoint.getType()).getName(), deploymentRoot);
}
}
if (viewService.isEmpty()) {
throw new RuntimeException("Could not resolve @Ejb reference " + ejb);
} else if (viewService.size() > 1) {
throw new RuntimeException("More than 1 ejb found for @Ejb reference " + ejb);
}
final ViewDescription viewDescription = viewService.iterator().next();
final ServiceController<?> controller = serviceRegistry.getRequiredService(viewDescription.getServiceName());
final ComponentView view = (ComponentView) controller.getValue();
try {
return view.createInstance().getInstance();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
@Override
public void cleanup() {
}
private static Class<?> getType(Type type) {
if (type instanceof Class) {
return (Class<?>) type;
} else if (type instanceof ParameterizedType) {
return getType(((ParameterizedType) type).getRawType());
} else {
throw new RuntimeException("Could not determine bean class from injection point type of " + type);
}
}
}