/*
* JBoss, Home of Professional Open Source.
* Copyright 2007, 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.ejb3.interceptors.metadata;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.ejb.PostActivate;
import javax.ejb.PrePassivate;
import javax.interceptor.AroundInvoke;
import javax.interceptor.Interceptors;
import org.jboss.ejb3.interceptors.annotation.impl.InterceptorsImpl;
import org.jboss.ejb3.interceptors.annotation.impl.PostActivateImpl;
import org.jboss.ejb3.interceptors.annotation.impl.PrePassivateImpl;
import org.jboss.ejb3.interceptors.aop.annotation.DefaultInterceptors;
import org.jboss.ejb3.interceptors.aop.annotation.DefaultInterceptorsImpl;
import org.jboss.ejb3.metadata.MetaDataBridge;
import org.jboss.logging.Logger;
import org.jboss.metadata.ejb.jboss.JBossEnterpriseBeanMetaData;
import org.jboss.metadata.ejb.jboss.JBossMessageDrivenBeanMetaData;
import org.jboss.metadata.ejb.jboss.JBossSessionBeanMetaData;
import org.jboss.metadata.ejb.spec.AroundInvokesMetaData;
import org.jboss.metadata.ejb.spec.InterceptorBindingMetaData;
import org.jboss.metadata.ejb.spec.InterceptorBindingsMetaData;
import org.jboss.metadata.ejb.spec.InterceptorClassesMetaData;
import org.jboss.metadata.ejb.spec.MethodParametersMetaData;
import org.jboss.metadata.ejb.spec.NamedMethodMetaData;
/**
* Comment
*
* @author <a href="mailto:carlo.dewolf@jboss.com">Carlo de Wolf</a>
* @version $Revision: 69343 $
*/
public class BeanInterceptorMetaDataBridge extends EnvironmentInterceptorMetaDataBridge<JBossEnterpriseBeanMetaData> implements MetaDataBridge<JBossEnterpriseBeanMetaData>
{
private static final Logger log = Logger.getLogger(BeanInterceptorMetaDataBridge.class);
private static boolean add(InterceptorsImpl interceptors, ClassLoader classLoader, InterceptorBindingMetaData binding)
{
boolean result = false;
InterceptorClassesMetaData interceptorClassesMetaData;
if(binding.isTotalOrdering())
{
interceptorClassesMetaData = binding.getInterceptorOrder();
}
else
{
interceptorClassesMetaData = binding.getInterceptorClasses();
}
if(interceptorClassesMetaData != null)
{
for(String interceptorClassName : interceptorClassesMetaData)
{
result |= interceptors.addValue(loadClass(classLoader, interceptorClassName));
}
}
return result;
}
protected static boolean add(List<Class<?>> interceptors, ClassLoader classLoader, InterceptorBindingMetaData binding)
{
InterceptorClassesMetaData interceptorClassesMetaData;
if(binding.isTotalOrdering())
{
interceptorClassesMetaData = binding.getInterceptorOrder();
}
else
{
interceptorClassesMetaData = binding.getInterceptorClasses();
}
for(String interceptorClassName : interceptorClassesMetaData)
{
interceptors.add(loadClass(classLoader, interceptorClassName));
}
return true;
}
private static Class<?> loadClass(ClassLoader classLoader, String name)
{
try
{
return classLoader.loadClass(name);
}
catch (ClassNotFoundException e)
{
throw new RuntimeException(e);
}
}
@Override
public <A extends Annotation> A retrieveAnnotation(Class<A> annotationClass, JBossEnterpriseBeanMetaData beanMetaData, ClassLoader classLoader)
{
if(annotationClass == DefaultInterceptors.class)
{
InterceptorBindingsMetaData bindings = beanMetaData.getEjbJarMetaData().getAssemblyDescriptor().getInterceptorBindings();
if(bindings != null)
{
List<Class<?>> interceptors = new ArrayList<Class<?>>();
for(InterceptorBindingMetaData binding : bindings)
{
String bindingEjbName = binding.getEjbName();
if(bindingEjbName.equals("*"))
{
assert binding.getMethod() == null : "method binding not allowed on default interceptor";
add(interceptors, classLoader, binding);
}
}
if(!interceptors.isEmpty())
return annotationClass.cast(new DefaultInterceptorsImpl(interceptors));
}
}
else if(annotationClass == Interceptors.class)
{
InterceptorBindingsMetaData bindings = beanMetaData.getEjbJarMetaData().getAssemblyDescriptor().getInterceptorBindings();
if(bindings != null)
{
InterceptorsImpl interceptors = new InterceptorsImpl();
for(InterceptorBindingMetaData binding : bindings)
{
// For the method component
if(binding.getMethod() != null)
continue;
String ejbName = beanMetaData.getEjbName();
String bindingEjbName = binding.getEjbName();
if(bindingEjbName.equals(ejbName))
add(interceptors, classLoader, binding);
}
return annotationClass.cast(interceptors);
}
}
return super.retrieveAnnotation(annotationClass, beanMetaData, classLoader);
}
@Override
public <A extends Annotation> A retrieveAnnotation(Class<A> annotationClass, JBossEnterpriseBeanMetaData beanMetaData, ClassLoader classLoader, String methodName, String... parameterNames)
{
if(annotationClass == AroundInvoke.class)
{
AroundInvokesMetaData aroundInvokes = null;
// if(beanMetaData instanceof JBossGenericBeanMetaData)
// aroundInvokes = ((JBossGenericBeanMetaData) beanMetaData).getAroundInvokes();
if(beanMetaData instanceof JBossMessageDrivenBeanMetaData)
aroundInvokes = ((JBossMessageDrivenBeanMetaData) beanMetaData).getAroundInvokes();
else if(beanMetaData instanceof JBossSessionBeanMetaData)
aroundInvokes = ((JBossSessionBeanMetaData) beanMetaData).getAroundInvokes();
if(aroundInvokes != null)
{
Annotation annotation = getAroundInvokeAnnotation(aroundInvokes, methodName);
if(annotation != null)
return annotationClass.cast(annotation);
}
}
else if(annotationClass == Interceptors.class)
{
InterceptorBindingsMetaData bindings = beanMetaData.getEjbJarMetaData().getAssemblyDescriptor().getInterceptorBindings();
if(bindings != null)
{
InterceptorsImpl interceptors = new InterceptorsImpl();
for(InterceptorBindingMetaData binding : bindings)
{
// For the bean
if(binding.getMethod() == null)
continue;
NamedMethodMetaData method = binding.getMethod();
// TODO: this is weird, it should have been caught earlier (invalid xml)
if(method.getMethodName() == null)
continue;
if(method.getMethodName().equals(methodName))
{
MethodParametersMetaData methodParams = method.getMethodParams();
if(methodParams == null)
add(interceptors, classLoader, binding);
else
{
if(Arrays.equals(methodParams.toArray(), parameterNames))
add(interceptors, classLoader, binding);
}
}
}
if(interceptors.value().length > 0)
return annotationClass.cast(interceptors);
}
}
else if(annotationClass == PostActivate.class)
{
if(beanMetaData instanceof JBossSessionBeanMetaData)
{
PostActivate lifeCycleAnnotation = getLifeCycleAnnotation(((JBossSessionBeanMetaData) beanMetaData).getPostActivates(), PostActivateImpl.class, methodName);
if(lifeCycleAnnotation != null)
return annotationClass.cast(lifeCycleAnnotation);
}
}
else if(annotationClass == PrePassivate.class)
{
if(beanMetaData instanceof JBossSessionBeanMetaData)
{
PrePassivate lifeCycleAnnotation = getLifeCycleAnnotation(((JBossSessionBeanMetaData) beanMetaData).getPrePassivates(), PrePassivateImpl.class, methodName);
if(lifeCycleAnnotation != null)
return annotationClass.cast(lifeCycleAnnotation);
}
}
return super.retrieveAnnotation(annotationClass, beanMetaData, classLoader, methodName, parameterNames);
}
}