/*
* 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.ejb3.enc;
import org.jboss.ejb3.entity.PersistenceUnitDeployment;
import org.jboss.ejb3.PersistenceUnitRegistry;
import org.jboss.ejb3.DeploymentScope;
import org.jboss.ejb3.Ejb3Deployment;
import org.jboss.logging.Logger;
import javax.naming.NameNotFoundException;
import java.util.Collection;
import java.util.List;
import java.util.LinkedHashMap;
/**
* Resolves persistence units for @PersistenceContext and @PersistenceUnit
*
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @version $Revision: 67985 $
*/
public class DeploymentPersistenceUnitResolver
{
private static final Logger log = Logger.getLogger(DeploymentPersistenceUnitResolver.class);
protected List<PersistenceUnitDeployment> persistenceUnitDeployments;
protected DeploymentScope deploymentScope;
protected LinkedHashMap ejbContainers;
public DeploymentPersistenceUnitResolver(List<PersistenceUnitDeployment> persistenceUnitDeployments, DeploymentScope deploymentScope, LinkedHashMap ejbContainers)
{
this.persistenceUnitDeployments = persistenceUnitDeployments;
this.deploymentScope = deploymentScope;
this.ejbContainers = ejbContainers;
}
public PersistenceUnitDeployment getPersistenceUnitDeployment(String unitName) throws NameNotFoundException
{
if (unitName == null || "".equals(unitName))
{
if (persistenceUnitDeployments == null)
{
throw new NameNotFoundException("EMPTY STRING unitName but there is no deployments in scope");
}
if (persistenceUnitDeployments.size() == 1 && ejbContainers.size() > 0)
{
return persistenceUnitDeployments.get(0);
}
else if (persistenceUnitDeployments.size() > 1)
{
throw new NameNotFoundException("EMPTY STRING unitName and there is more than one scoped persistence unit");
}
else //check for persistence.xml outside of jar, but in ear scope
{
if (deploymentScope != null)
{
Collection<Ejb3Deployment> deployments = deploymentScope.getEjbDeployments();
if (deployments != null)
{
for (Ejb3Deployment deployment : deployments)
{
if (deployment.getPersistenceUnitDeployments().size() == 1)
{
return deployment.getPersistenceUnitDeployments().get(0);
}
}
}
}
throw new NameNotFoundException("There is no default persistence unit in this deployment.");
}
}
int hashIndex = unitName.indexOf('#');
if (hashIndex != -1)
{
String relativePath = unitName.substring(0, hashIndex);
String name = unitName.substring(hashIndex + 1);
if (deploymentScope == null)
{
String relativeJarName = relativePath.substring(3);
// look in global EJB jars.
for (PersistenceUnitDeployment pud : PersistenceUnitRegistry.getPersistenceUnits())
{
String jarName = pud.getDeployment().getDeploymentUnit().getShortName() + ".jar";
if (pud.getDeployment().getEar() == null
&& jarName.equals(relativeJarName)
&& pud.getEntityManagerName().equals(name)
&& pud.isScoped())
{
return pud;
}
}
return null;
}
Ejb3Deployment dep = deploymentScope.findRelativeDeployment(relativePath);
if (dep == null)
{
return null;
}
PersistenceUnitDeployment rtn = dep.getPersistenceUnitDeploymentInternal(name);
return rtn;
}
PersistenceUnitDeployment rtn = getPersistenceUnitDeploymentInternal(unitName);
if (rtn != null) return rtn;
for (PersistenceUnitDeployment deployment : PersistenceUnitRegistry.getPersistenceUnits())
{
if (deployment.isScoped()) continue;
if (deployment.getEntityManagerName().equals(unitName)) return deployment;
}
return rtn;
}
public PersistenceUnitDeployment getPersistenceUnitDeploymentInternal(String unitName)
{
if (persistenceUnitDeployments != null)
{
for (PersistenceUnitDeployment deployment : persistenceUnitDeployments)
{
if (deployment.getEntityManagerName().equals(unitName))
{
return deployment;
}
}
}
return null;
}
}