/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., 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.as.jpa.processor;
import org.jboss.as.jpa.persistenceprovider.PersistenceProviderAdapterRegistry;
import org.jboss.as.jpa.persistenceprovider.PersistenceProviderResolverImpl;
import org.jboss.as.server.deployment.Attachments;
import org.jboss.as.server.deployment.DeploymentPhaseContext;
import org.jboss.as.server.deployment.DeploymentUnit;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.DeploymentUnitProcessor;
import org.jboss.as.server.deployment.ServicesAttachment;
import org.jboss.logging.Logger;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleClassLoader;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ValueService;
import org.jboss.msc.value.ImmediateValue;
import javax.persistence.spi.PersistenceProvider;
import java.lang.reflect.Constructor;
import java.util.List;
/**
* Deploy JPA Persistence providers that are found in the application deployment.
* Modeled after DriverProcessor.
*
* TODO: add versioning support so that we could have multiple versions of the provider.
* Or use the provider jar name (which could include a version) as a version tag that
* could be specified in the persistence.xml
*
* @author Scott Marlow
*/
public class PersistenceProviderProcessor implements DeploymentUnitProcessor {
private static final Logger log = Logger.getLogger("org.jboss.as.jpa");
/** {@inheritDoc} */
public void deploy(final DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
final Module module = deploymentUnit.getAttachment(Attachments.MODULE);
final ServicesAttachment servicesAttachment = deploymentUnit.getAttachment(Attachments.SERVICES);
if (module != null && servicesAttachment != null) {
final ModuleClassLoader classLoader = module.getClassLoader();
final List<String> providerNames = servicesAttachment.getServiceImplementations(PersistenceProvider.class.getName());
for (String providerName : providerNames) {
try {
final Class<? extends PersistenceProvider> providerClass = classLoader.loadClass(providerName).asSubclass(PersistenceProvider.class);
final Constructor<? extends PersistenceProvider> constructor = providerClass.getConstructor();
final PersistenceProvider provider = constructor.newInstance();
log.infof("Deploying Persistence Provider %s ", providerClass);
phaseContext
.getServiceTarget()
.addService(
ServiceName.JBOSS.append("persistenceprovider", providerName ),
new ValueService<PersistenceProvider>(new ImmediateValue<PersistenceProvider>(provider))).setInitialMode(ServiceController.Mode.ACTIVE)
.install();
// temp hack for testing PersistenceProviderResolverImpl.getInstance().clearCachedProviders();
PersistenceProviderResolverImpl.getInstance().addPersistenceProvider(provider);
} catch (Exception e) {
log.warnf("Unable to instantiate persistence provider class \"%s\": %s", providerName, e);
}
}
}
}
/** {@inheritDoc} */
public void undeploy(final DeploymentUnit context) {
}
}