/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, 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.injection;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Map;
import javax.naming.NameNotFoundException;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceUnit;
import javax.persistence.PersistenceUnits;
import org.hibernate.SessionFactory;
import org.jboss.annotation.IgnoreDependency;
import org.jboss.ejb3.entity.InjectedEntityManagerFactory;
import org.jboss.ejb3.entity.InjectedSessionFactory;
import org.jboss.ejb3.entity.ManagedEntityManagerFactory;
import org.jboss.ejb3.entity.PersistenceUnitDeployment;
import org.jboss.logging.Logger;
import org.jboss.metamodel.descriptor.EnvironmentRefGroup;
import org.jboss.metamodel.descriptor.PersistenceUnitRef;
/**
* Searches bean class for all @Inject and create Injectors
*
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @version $Revision: 60233 $
*/
public class PersistenceUnitHandler implements InjectionHandler
{
private static final Logger log = Logger.getLogger(PersistenceUnitHandler.class);
public void loadXml(EnvironmentRefGroup xml, InjectionContainer container)
{
if (xml == null) return;
if (xml.getPersistenceUnitRefs() == null) return;
for (PersistenceUnitRef ref : xml.getPersistenceUnitRefs())
{
String encName = "env/" + ref.getRefName();
// we add injection target no matter what. enc injection might be overridden but
// XML injection cannot be overriden
Class injectionType = InjectionUtil.injectionTarget(encName, ref, container, container.getEncInjections());
if (container.getEncInjectors().containsKey(encName))
return;
container.getEncInjectors().put(encName, new PuEncInjector(encName, injectionType, ref.getUnitName(), "<persistence-unit-ref>"));
try
{
addPUDependency(ref.getUnitName(), container);
}
catch (NameNotFoundException e)
{
throw new RuntimeException("Illegal <persistence-unit-ref> of " + ref.getRefName() + " :" + e.getMessage());
}
}
}
public void handleClassAnnotations(Class clazz, InjectionContainer container)
{
PersistenceUnits resources = container.getAnnotation(
PersistenceUnits.class, clazz);
if (resources != null)
{
for (PersistenceUnit ref : resources.value())
{
handleClassAnnotation(ref, container, clazz);
}
}
PersistenceUnit pu = container.getAnnotation(PersistenceUnit.class, clazz);
if (pu != null)
{
handleClassAnnotation(pu, container, clazz);
}
}
private static void handleClassAnnotation(PersistenceUnit ref, InjectionContainer container, Class clazz)
{
String encName = ref.name();
if (encName == null || encName.equals(""))
{
throw new RuntimeException("JBoss requires name() for class level @PersistenceUnit");
}
encName = "env/" + encName;
if (container.getEncInjectors().containsKey(encName)) return;
container.getEncInjectors().put(encName, new PuEncInjector(encName, null, ref.unitName(), "@PersistenceUnit"));
try
{
addPUDependency(ref.unitName(), container);
}
catch (NameNotFoundException e)
{
throw new RuntimeException("Illegal @PersistenceUnit on " + clazz.getName() + " of unitname " + ref.unitName() + " :" + e.getMessage());
}
}
public static void addPUDependency(String unitName, InjectionContainer container) throws NameNotFoundException
{
PersistenceUnitDeployment deployment = null;
// look in EAR first
deployment = container.getPersistenceUnitDeployment(unitName);
if (deployment != null)
{
container.getDependencyPolicy().addDependency(deployment.getKernelName());
log.debug("***** adding PU dependency from located persistence unit: " + deployment.getKernelName());
return;
}
// probably not deployed yet.
// todo not sure if we should do this in JBoss 5
log.debug("******* could not find PU dependency so adding a default: " + PersistenceUnitDeployment.getDefaultKernelName(unitName));
container.getDependencyPolicy().addDependency(PersistenceUnitDeployment.getDefaultKernelName(unitName));
}
public static ManagedEntityManagerFactory getManagedEntityManagerFactory(InjectionContainer container, String unitName)
throws NameNotFoundException
{
ManagedEntityManagerFactory factory;
PersistenceUnitDeployment deployment = container.getPersistenceUnitDeployment(unitName);
if (deployment != null)
{
factory = deployment.getManagedFactory();
}
else
{
throw new NameNotFoundException("Unable to find persistence unit: " + unitName + " for deployment: " + container.getIdentifier());
}
return factory;
}
public static EntityManagerFactory getEntityManagerFactory(PersistenceUnit ref, InjectionContainer container) throws NameNotFoundException
{
return getEntityManagerFactory(ref.unitName(), container);
}
public static Object getFactory(Class type, String unitName, InjectionContainer container) throws NameNotFoundException
{
if (type != null && type.getName().equals(SessionFactory.class.getName()))
return getSessionFactory(unitName, container);
return getEntityManagerFactory(unitName, container);
}
public static EntityManagerFactory getEntityManagerFactory(String unitName, InjectionContainer container) throws NameNotFoundException
{
ManagedEntityManagerFactory managedFactory;
PersistenceUnitDeployment deployment = container.getPersistenceUnitDeployment(unitName);
if (deployment != null)
{
managedFactory = deployment.getManagedFactory();
}
else
{
return null;
}
return new InjectedEntityManagerFactory(managedFactory);
}
private static SessionFactory getSessionFactory(String ref, InjectionContainer container) throws NameNotFoundException
{
ManagedEntityManagerFactory managedFactory;
PersistenceUnitDeployment deployment = container.getPersistenceUnitDeployment(ref);
if (deployment != null)
{
managedFactory = deployment.getManagedFactory();
}
else
{
return null;
}
return new InjectedSessionFactory(managedFactory);
}
public void handleMethodAnnotations(Method method, InjectionContainer container, Map<AccessibleObject, Injector> injectors)
{
PersistenceUnit ref = method.getAnnotation(PersistenceUnit.class);
if (ref == null) return;
if (!method.getName().startsWith("set"))
throw new RuntimeException("@PersistenceUnit can only be used with a set method: " + method);
String encName = ref.name();
if (encName == null || encName.equals(""))
{
encName = InjectionUtil.getEncName(method);
}
else
{
encName = "env/" + encName;
}
if (!container.getEncInjectors().containsKey(encName))
{
container.getEncInjectors().put(encName, new PuEncInjector(encName, method.getParameterTypes()[0], ref.unitName(), "@PersistenceUnit"));
try
{
if (!method.isAnnotationPresent(IgnoreDependency.class)) addPUDependency(ref.unitName(), container);
}
catch (NameNotFoundException e)
{
throw new RuntimeException("Illegal @PersistenceUnit on " + method + " :" + e.getMessage());
}
}
injectors.put(method, new JndiMethodInjector(method, encName, container.getEnc()));
}
public void handleFieldAnnotations(Field field, InjectionContainer container, Map<AccessibleObject, Injector> injectors)
{
PersistenceUnit ref = field.getAnnotation(PersistenceUnit.class);
if (ref == null) return;
String encName = ref.name();
if (encName == null || encName.equals(""))
{
encName = InjectionUtil.getEncName(field);
}
else
{
encName = "env/" + encName;
}
if (!container.getEncInjectors().containsKey(encName))
{
container.getEncInjectors().put(encName, new PuEncInjector(encName, field.getType(), ref.unitName(), "@PersistenceUnit"));
try
{
if (!field.isAnnotationPresent(IgnoreDependency.class)) addPUDependency(ref.unitName(), container);
}
catch (NameNotFoundException e)
{
throw new RuntimeException("Illegal @PersistenceUnit on " + field + " :" + e.getMessage());
}
}
injectors.put(field, new JndiFieldInjector(field, encName, container.getEnc()));
}
}
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