/*
* ============================================================================
* GNU Lesser General Public License
* ============================================================================
*
* Beanlet - JSE Application Container.
* Copyright (C) 2006 Leon van Zantvoort
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* Leon van Zantvoort
* 243 Acalanes Drive #11
* Sunnyvale, CA 94086
* USA
*
* zantvoort@users.sourceforge.net
* http://beanlet.org
*/
package org.beanlet.persistence.impl;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.persistence.PersistenceContext;
import org.jargo.InvocationInterceptor;
import org.jargo.ComponentConfiguration;
import org.jargo.deploy.SequentialDeployable;
import org.beanlet.annotation.AnnotationDomain;
import org.beanlet.annotation.Element;
import org.beanlet.annotation.ElementAnnotation;
import org.beanlet.plugin.BeanletConfiguration;
import org.jargo.ConstructorInjection;
import org.jargo.InvocationInterceptorFactory;
import org.jargo.ProxyController;
import org.jargo.spi.InvocationInterceptorFactoryProvider;
/**
*
* @author Leon van Zantvoort
*/
public final class EntityManagerInvocationInterceptorFactoryProviderImpl implements
InvocationInterceptorFactoryProvider {
public Sequence sequence(SequentialDeployable deployable) {
if (deployable.getClass().getName().equals(
"org.beanlet.transaction.jersey.TransactionInvocationInterceptorFactoryProviderImpl")) {
return Sequence.AFTER;
}
return Sequence.BEFORE;
}
public List<InvocationInterceptorFactory> getInvocationInterceptorFactories(
final ComponentConfiguration configuration, Method method) {
final List<InvocationInterceptorFactory> list;
if (PersistenceConstants.isSupported() &&
configuration instanceof BeanletConfiguration) {
AnnotationDomain domain = ((BeanletConfiguration) configuration).
getAnnotationDomain();
final Set<PersistenceContext> pctxs =
new HashSet<PersistenceContext>();
for (ElementAnnotation<? extends Element, PersistenceContext> ea :
domain.getDeclaration(PersistenceContext.class).getElements()) {
pctxs.add(ea.getAnnotation());
}
if (pctxs.isEmpty()) {
list = Collections.emptyList();
} else {
list = Collections.<InvocationInterceptorFactory>singletonList(
new InvocationInterceptorFactory() {
public Class<?> getType() {
return EntityManagerInvocationInterceptor.class;
}
public List<InvocationInterceptor> getInvocationInterceptors(
Object instance,
ConstructorInjection injection,
ProxyController controller) {
return Collections.<InvocationInterceptor>singletonList(
new EntityManagerInvocationInterceptor(pctxs,
configuration.getComponentUnit()));
}
});
}
} else {
list = Collections.emptyList();
}
return list;
}
}