/*
* 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 javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.interceptor.AroundInvoke;
import org.jboss.ejb3.interceptors.annotation.impl.AroundInvokeImpl;
import org.jboss.ejb3.interceptors.annotation.impl.PostConstructImpl;
import org.jboss.ejb3.interceptors.annotation.impl.PreDestroyImpl;
import org.jboss.ejb3.metadata.MetaDataBridge;
import org.jboss.logging.Logger;
import org.jboss.metadata.ejb.spec.AroundInvokeMetaData;
import org.jboss.metadata.ejb.spec.AroundInvokesMetaData;
import org.jboss.metadata.javaee.spec.Environment;
import org.jboss.metadata.javaee.spec.LifecycleCallbackMetaData;
import org.jboss.metadata.javaee.spec.LifecycleCallbacksMetaData;
import org.jboss.metadata.spi.signature.DeclaredMethodSignature;
/**
* Does only interceptor stuff.
*
* @author <a href="mailto:carlo.dewolf@jboss.com">Carlo de Wolf</a>
* @version $Revision: 77151 $
*/
public class EnvironmentInterceptorMetaDataBridge<M extends Environment> implements MetaDataBridge<M>
{
private static final Logger log = Logger.getLogger(EnvironmentInterceptorMetaDataBridge.class);
protected <T extends Annotation> T createAnnotationImpl(Class<T> annotationImplType)
{
try
{
return annotationImplType.newInstance();
}
catch (InstantiationException e)
{
throw new RuntimeException(e);
}
catch (IllegalAccessException e)
{
throw new RuntimeException(e);
}
}
protected AroundInvoke getAroundInvokeAnnotation(AroundInvokesMetaData callbacks, DeclaredMethodSignature method)
{
if(callbacks == null || callbacks.isEmpty())
return null;
for(AroundInvokeMetaData callback : callbacks)
{
String callbackClassName = callback.getClassName();
if(isEmpty(callbackClassName) || callbackClassName.equals(method.getDeclaringClass()))
{
String callbackMethodName = callback.getMethodName();
if(method.getName().equals(callbackMethodName))
return new AroundInvokeImpl();
}
}
return null;
}
protected <T extends Annotation> T getLifeCycleAnnotation(LifecycleCallbacksMetaData callbacks, Class<T> annotationImplType, DeclaredMethodSignature method)
{
if(callbacks == null || callbacks.isEmpty())
return null;
for(LifecycleCallbackMetaData callback : callbacks)
{
String callbackClassName = callback.getClassName();
if(isEmpty(callbackClassName) || callbackClassName.equals(method.getDeclaringClass()))
{
String callbackMethodName = callback.getMethodName();
if(method.getName().equals(callbackMethodName))
return createAnnotationImpl(annotationImplType);
}
}
return null;
}
private static boolean isEmpty(String s)
{
return s == null || s.length() == 0;
}
public <A extends Annotation> A retrieveAnnotation(Class<A> annotationClass, M metaData, ClassLoader classLoader)
{
return null;
}
public <A extends Annotation> A retrieveAnnotation(Class<A> annotationClass, M metaData, ClassLoader classLoader, DeclaredMethodSignature method)
{
if(log.isTraceEnabled()) log.trace("retrieve annotation " + annotationClass + " on " + metaData + " for " + method);
if(annotationClass == PostConstruct.class)
{
PostConstruct lifeCycleAnnotation = getLifeCycleAnnotation(metaData.getPostConstructs(), PostConstructImpl.class, method);
if(lifeCycleAnnotation != null)
return annotationClass.cast(lifeCycleAnnotation);
}
else if(annotationClass == PreDestroy.class)
{
PreDestroy lifeCycleAnnotation = getLifeCycleAnnotation(metaData.getPreDestroys(), PreDestroyImpl.class, method);
if(lifeCycleAnnotation != null)
return annotationClass.cast(lifeCycleAnnotation);
}
return null;
}
}