/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.enterprise.deployment.annotation.handlers;
import java.lang.annotation.Annotation;
import java.lang.annotation.ElementType;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.HashSet;
import java.util.Set;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.interceptor.AroundInvoke;
import javax.interceptor.Interceptors;
import javax.ejb.PostActivate;
import javax.ejb.PrePassivate;
import com.sun.enterprise.deployment.EjbDescriptor;
import com.sun.enterprise.deployment.EjbBundleDescriptor;
import com.sun.enterprise.deployment.InterceptorBindingDescriptor;
import com.sun.enterprise.deployment.LifecycleCallbackDescriptor;
import com.sun.enterprise.deployment.EjbInterceptor;
import static com.sun.enterprise.deployment.LifecycleCallbackDescriptor.CallbackType;
import com.sun.enterprise.deployment.EjbSessionDescriptor;
import com.sun.enterprise.deployment.MethodDescriptor;
import com.sun.enterprise.deployment.annotation.AnnotationInfo;
import com.sun.enterprise.deployment.annotation.AnnotationProcessorException;
import com.sun.enterprise.deployment.annotation.HandlerProcessingResult;
import com.sun.enterprise.deployment.annotation.ProcessingContext;
import com.sun.enterprise.deployment.annotation.context.EjbContext;
import com.sun.enterprise.deployment.annotation.context.EjbInterceptorContext;
import com.sun.enterprise.deployment.annotation.impl.ComponentDefinition;
/**
* This handler is responsible for handling javax.ejb.Interceptors
*
*/
public class InterceptorsHandler extends AbstractAttributeHandler {
public InterceptorsHandler() {
}
/**
* @return the annoation type this annotation handler is handling
*/
public Class<? extends Annotation> getAnnotationType() {
return Interceptors.class;
}
protected HandlerProcessingResult processAnnotation(AnnotationInfo ainfo,
EjbContext[] ejbContexts) throws AnnotationProcessorException {
Interceptors interceptors = (Interceptors) ainfo.getAnnotation();
EjbBundleDescriptor ejbBundle =
((EjbDescriptor)ejbContexts[0].getDescriptor()).
getEjbBundleDescriptor();
// Process each of the interceptor classes.
for(Class interceptor : interceptors.value()) {
processInterceptorClass(interceptor, ejbBundle, ainfo);
}
for(EjbContext next : ejbContexts) {
EjbDescriptor ejbDescriptor = (EjbDescriptor) next.getDescriptor();
// Create binding information.
InterceptorBindingDescriptor binding =
new InterceptorBindingDescriptor();
binding.setEjbName(ejbDescriptor.getName());
for(Class interceptor : interceptors.value()) {
binding.appendInterceptorClass(interceptor.getName());
}
if(ElementType.METHOD.equals(ainfo.getElementType())) {
Method m = (Method) ainfo.getAnnotatedElement();
MethodDescriptor md =
new MethodDescriptor(m, MethodDescriptor.EJB_BEAN);
binding.setBusinessMethod(md);
}
// All binding information processed from annotations should go
// before the binding information processed from the descriptors.
// Since descriptors are processed first, always place the binding
// info at the front. The binding information from the descriptor
// is ordered, but there is no prescribed order in which the
// annotations are processed, so all that matters is that it's
// before the descriptor bindings and that the descriptor binding
// order is preserved.
ejbBundle.prependInterceptorBinding(binding);
}
return getDefaultProcessedResult();
}
private void processInterceptorClass(Class interceptorClass,
EjbBundleDescriptor ejbBundle, AnnotationInfo ainfo)
throws AnnotationProcessorException {
Set<LifecycleCallbackDescriptor> aroundInvokeDescriptors =
new HashSet<LifecycleCallbackDescriptor>();
Set<LifecycleCallbackDescriptor> postActivateDescriptors =
new HashSet<LifecycleCallbackDescriptor>();
Set<LifecycleCallbackDescriptor> prePassivateDescriptors =
new HashSet<LifecycleCallbackDescriptor>();
ComponentDefinition cdef = new ComponentDefinition(interceptorClass);
for(Method m : cdef.getMethods()) {
if( m.getAnnotation(AroundInvoke.class) != null ) {
aroundInvokeDescriptors.add(getLifecycleCallbackDescriptor(m));
}
if( m.getAnnotation(PostActivate.class) != null ) {
postActivateDescriptors.add(getLifecycleCallbackDescriptor(m));
}
if( m.getAnnotation(PrePassivate.class) != null ) {
prePassivateDescriptors.add(getLifecycleCallbackDescriptor(m));
}
}
EjbInterceptor interceptor =
ejbBundle.getInterceptorByClassName(interceptorClass.getName());
if (interceptor == null) {
interceptor = new EjbInterceptor();
interceptor.setInterceptorClassName(interceptorClass.getName());
// Add interceptor to the set of all interceptors in the ejb-jar
ejbBundle.addInterceptor(interceptor);
}
if (aroundInvokeDescriptors.size() > 0) {
interceptor.addAroundInvokeDescriptors(aroundInvokeDescriptors);
}
if (postActivateDescriptors.size() > 0) {
interceptor.addCallbackDescriptors(CallbackType.POST_ACTIVATE,
postActivateDescriptors);
}
if (prePassivateDescriptors.size() > 0) {
interceptor.addCallbackDescriptors(CallbackType.PRE_PASSIVATE,
prePassivateDescriptors);
}
// process resource related annotations
EjbInterceptorContext ejbInterceptorContext =
new EjbInterceptorContext(interceptor);
ProcessingContext procContext = ainfo.getProcessingContext();
procContext.pushHandler(ejbInterceptorContext);
procContext.getProcessor().process(
procContext, new Class[] { interceptorClass });
return;
}
/**
* @return an array of annotation types this annotation handler would
* require to be processed (if present) before it processes it's own
* annotation type.
*/
public Class<? extends Annotation>[] getTypeDependencies() {
return getEjbAnnotationTypes();
}
private LifecycleCallbackDescriptor getLifecycleCallbackDescriptor(Method m) {
LifecycleCallbackDescriptor lccDesc = new LifecycleCallbackDescriptor();
lccDesc.setLifecycleCallbackClass(m.getDeclaringClass().getName());
lccDesc.setLifecycleCallbackMethod(m.getName());
return lccDesc;
}
}
|
