/*
* JBoss, Home of Professional Open Source.
* Copyright (c) 2011, Red Hat, Inc., 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.as.ejb3.deployment.processors;
import org.jboss.as.ee.component.EEModuleDescription;
import org.jboss.as.ee.structure.DeploymentType;
import org.jboss.as.ee.structure.DeploymentTypeMarker;
import org.jboss.as.ejb3.component.session.SessionBeanComponentDescription;
import org.jboss.as.ejb3.component.singleton.SingletonComponentDescription;
import org.jboss.as.ejb3.component.stateful.StatefulComponentDescription;
import org.jboss.as.ejb3.component.stateless.StatelessComponentDescription;
import org.jboss.as.ejb3.deployment.EjbDeploymentAttachmentKeys;
import org.jboss.as.ejb3.deployment.EjbDeploymentMarker;
import org.jboss.as.ejb3.deployment.EjbJarDescription;
import org.jboss.as.server.deployment.Attachments;
import org.jboss.as.server.deployment.DeploymentPhaseContext;
import org.jboss.as.server.deployment.DeploymentUnit;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.DeploymentUnitProcessor;
import org.jboss.as.server.deployment.annotation.CompositeIndex;
import org.jboss.jandex.AnnotationInstance;
import org.jboss.jandex.AnnotationTarget;
import org.jboss.jandex.AnnotationValue;
import org.jboss.jandex.ClassInfo;
import org.jboss.jandex.DotName;
import org.jboss.logging.Logger;
import javax.ejb.Singleton;
import javax.ejb.Stateful;
import javax.ejb.Stateless;
import java.util.List;
/**
* @author Jaikiran Pai
* @author <a href="mailto:ropalka@redhat.com">Richard Opalka</a>
*/
public final class EjbAnnotationProcessor implements DeploymentUnitProcessor {
private static final Logger logger = Logger.getLogger(EjbAnnotationProcessor.class);
private static final DotName STATELESS_ANNOTATION = DotName.createSimple(Stateless.class.getName());
private static final DotName STATEFUL_ANNOTATION = DotName.createSimple(Stateful.class.getName());
private static final DotName SINGLETON_ANNOTATION = DotName.createSimple(Singleton.class.getName());
private static enum SessionBeanType {
STATELESS,
STATEFUL,
SINGLETON
}
@Override
public void deploy(final DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
// get hold of the deployment unit
final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
if (DeploymentTypeMarker.isType(DeploymentType.EAR, deploymentUnit)) {
return;
}
// get the annotation index
final CompositeIndex compositeIndex = deploymentUnit.getAttachment(Attachments.COMPOSITE_ANNOTATION_INDEX);
if (compositeIndex == null) {
if (logger.isTraceEnabled()) {
logger.trace("Skipping EJB annotation processing since no composite annotation index found in unit: " + deploymentUnit);
}
return;
}
// Find and process any @Stateless bean annotations
final List<AnnotationInstance> slsbAnnotations = compositeIndex.getAnnotations(STATELESS_ANNOTATION);
if (!slsbAnnotations.isEmpty()) {
processSessionBeans(deploymentUnit, slsbAnnotations, SessionBeanType.STATELESS);
// mark this as an EJB deployment
EjbDeploymentMarker.mark(deploymentUnit);
}
// Find and process any @Stateful bean annotations
final List<AnnotationInstance> sfsbAnnotations = compositeIndex.getAnnotations(STATEFUL_ANNOTATION);
if (!sfsbAnnotations.isEmpty()) {
processSessionBeans(deploymentUnit, sfsbAnnotations, SessionBeanType.STATEFUL);
// mark this as an EJB deployment
EjbDeploymentMarker.mark(deploymentUnit);
}
// Find and process any @Singleton bean annotations
final List<AnnotationInstance> sbAnnotations = compositeIndex.getAnnotations(SINGLETON_ANNOTATION);
if (!sbAnnotations.isEmpty()) {
processSessionBeans(deploymentUnit, sbAnnotations, SessionBeanType.SINGLETON);
// mark this as an EJB deployment
EjbDeploymentMarker.mark(deploymentUnit);
}
}
private void processSessionBeans(final DeploymentUnit deploymentUnit, final List<AnnotationInstance> sessionBeanAnnotations, final SessionBeanType sessionBeanType) {
final EEModuleDescription moduleDescription = deploymentUnit.getAttachment(org.jboss.as.ee.component.Attachments.EE_MODULE_DESCRIPTION);
EjbJarDescription ejbJarDescription = deploymentUnit.getAttachment(EjbDeploymentAttachmentKeys.EJB_JAR_DESCRIPTION);
if (ejbJarDescription == null) {
ejbJarDescription = new EjbJarDescription(moduleDescription);
deploymentUnit.putAttachment(EjbDeploymentAttachmentKeys.EJB_JAR_DESCRIPTION, ejbJarDescription);
}
// process these session bean annotations and create component descriptions out of it
for (final AnnotationInstance sessionBeanAnnotation : sessionBeanAnnotations) {
final AnnotationTarget target = sessionBeanAnnotation.target();
if (!(target instanceof ClassInfo)) {
// Let's just WARN and move on. No need to throw an error
logger.warn(sessionBeanAnnotation.name() + " annotation is expected to be only on classes. " + target + " is not a class");
continue;
}
final ClassInfo sessionBeanClassInfo = (ClassInfo) target;
final String beanClassName = sessionBeanClassInfo.name().toString();
final String ejbName = sessionBeanClassInfo.name().local();
final AnnotationValue nameValue = sessionBeanAnnotation.value("name");
final String beanName = nameValue == null || nameValue.asString().isEmpty() ? ejbName : nameValue.asString();
SessionBeanComponentDescription sessionBeanDescription = null;
switch (sessionBeanType) {
case STATELESS:
sessionBeanDescription = new StatelessComponentDescription(beanName, beanClassName, ejbJarDescription);
break;
case STATEFUL:
sessionBeanDescription = new StatefulComponentDescription(beanName, beanClassName, ejbJarDescription);
break;
case SINGLETON:
sessionBeanDescription = new SingletonComponentDescription(beanName, beanClassName, ejbJarDescription);
break;
default:
throw new IllegalArgumentException("Unknown session bean type: " + sessionBeanType);
}
// Add this component description to module description
if (ejbJarDescription.getEEModuleDescription().getComponentByName(sessionBeanDescription.getComponentName()) == null) {
ejbJarDescription.getEEModuleDescription().addComponent(sessionBeanDescription);
}
}
}
@Override
public void undeploy(DeploymentUnit context) {
}
}