/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, 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
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*/
package org.jboss.as.jpa.processor;
import java.lang.reflect.Constructor;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.persistence.spi.PersistenceProvider;
import org.jboss.as.jpa.config.PersistenceProviderDeploymentHolder;
import org.jboss.as.jpa.messages.JpaLogger;
import org.jboss.as.jpa.persistenceprovider.PersistenceProviderResolverImpl;
import org.jboss.as.jpa.transaction.JtaManagerImpl;
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.DeploymentUtils;
import org.jboss.as.server.deployment.ServicesAttachment;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleClassLoader;
import org.jipijapa.plugin.spi.PersistenceProviderAdaptor;
import org.jipijapa.plugin.spi.Platform;
/**
* Deploy JPA Persistence providers that are found in the application deployment.
*
* @author Scott Marlow
*/
public class PersistenceProviderHandler {
private static final String PERSISTENCE_PROVIDER_CLASSNAME = PersistenceProvider.class.getName();
public static void deploy(final DeploymentPhaseContext phaseContext, final Platform platform) 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 deploymentModuleClassLoader = module.getClassLoader();
PersistenceProvider provider;
// collect list of persistence providers packaged with the application
final List<String> providerNames = servicesAttachment.getServiceImplementations(PERSISTENCE_PROVIDER_CLASSNAME);
List<PersistenceProvider> providerList = new ArrayList<PersistenceProvider>();
for (String providerName : providerNames) {
try {
final Class<? extends PersistenceProvider> providerClass = deploymentModuleClassLoader.loadClass(providerName).asSubclass(PersistenceProvider.class);
final Constructor<? extends PersistenceProvider> constructor = providerClass.getConstructor();
provider = constructor.newInstance();
providerList.add(provider);
JpaLogger.ROOT_LOGGER.tracef("deployment %s is using its own copy of %s", deploymentUnit.getName(), providerName);
} catch (Exception e) {
throw JpaLogger.ROOT_LOGGER.cannotDeployApp(e, providerName);
}
}
if (providerList.size() > 0) {
final String adapterClass = deploymentUnit.getAttachment(JpaAttachments.ADAPTOR_CLASS_NAME);
PersistenceProviderAdaptor adaptor;
if (adapterClass != null) {
try {
adaptor = (PersistenceProviderAdaptor) deploymentModuleClassLoader.loadClass(adapterClass).newInstance();
adaptor.injectJtaManager(new JtaManagerImpl(deploymentUnit.getAttachment(JpaAttachments.TRANSACTION_MANAGER), deploymentUnit.getAttachment(JpaAttachments.TRANSACTION_SYNCHRONIZATION_REGISTRY)));
adaptor.injectPlatform(platform);
ArrayList<PersistenceProviderAdaptor> adaptorList = new ArrayList<>();
adaptorList.add(adaptor);
PersistenceProviderDeploymentHolder.savePersistenceProviderInDeploymentUnit(deploymentUnit, providerList, adaptorList);
} catch (InstantiationException e) {
throw JpaLogger.ROOT_LOGGER.cannotCreateAdapter(e, adapterClass);
} catch (IllegalAccessException e) {
throw JpaLogger.ROOT_LOGGER.cannotCreateAdapter(e, adapterClass);
} catch (ClassNotFoundException e) {
throw JpaLogger.ROOT_LOGGER.cannotCreateAdapter(e, adapterClass);
}
} else {
// register the provider (no adapter specified)
PersistenceProviderDeploymentHolder.savePersistenceProviderInDeploymentUnit(deploymentUnit, providerList, null);
}
}
}
}
public static void finishDeploy(final DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
PersistenceProviderDeploymentHolder persistenceProviderDeploymentHolder = PersistenceProviderDeploymentHolder.getPersistenceProviderDeploymentHolder(deploymentUnit);
List<PersistenceProvider> providerList = persistenceProviderDeploymentHolder != null ?
persistenceProviderDeploymentHolder.getProviders() : null;
if (providerList != null) {
Set<ClassLoader> deploymentClassLoaders = allDeploymentModuleClassLoaders(deploymentUnit);
for (PersistenceProvider provider:providerList) {
PersistenceProviderResolverImpl.getInstance().addDeploymentSpecificPersistenceProvider(provider, deploymentClassLoaders);
}
}
}
public static void undeploy(final DeploymentUnit deploymentUnit) {
Set<ClassLoader> deploymentClassLoaders = allDeploymentModuleClassLoaders(deploymentUnit);
PersistenceProviderResolverImpl.getInstance().clearCachedDeploymentSpecificProviders(deploymentClassLoaders);
}
/**
* returns the toplevel deployment module classloader and all subdeployment classloaders
*
* @param deploymentUnit
* @return
*/
private static Set<ClassLoader> allDeploymentModuleClassLoaders(DeploymentUnit deploymentUnit) {
Set<ClassLoader> deploymentClassLoaders = new HashSet<ClassLoader>();
final DeploymentUnit topDeploymentUnit = DeploymentUtils.getTopDeploymentUnit(deploymentUnit);
final Module toplevelModule = topDeploymentUnit.getAttachment(Attachments.MODULE);
if (toplevelModule != null) {
deploymentClassLoaders.add(toplevelModule.getClassLoader());
final List<DeploymentUnit> subDeployments = topDeploymentUnit.getAttachmentList(Attachments.SUB_DEPLOYMENTS);
for (DeploymentUnit subDeploymentUnit: subDeployments) {
final Module subDeploymentModule = subDeploymentUnit.getAttachment(Attachments.MODULE);
if (subDeploymentModule != null) {
deploymentClassLoaders.add(subDeploymentModule.getClassLoader());
}
}
}
return deploymentClassLoaders;
}
}