/*
* 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.container;
import org.jboss.as.jpa.config.PersistenceUnitMetadataHolder;
import org.jboss.as.jpa.spi.PersistenceUnitMetadata;
import org.jboss.as.server.deployment.Attachments;
import org.jboss.as.server.deployment.DeploymentUnit;
import org.jboss.as.server.deployment.DeploymentUtils;
import org.jboss.as.server.deployment.SubDeploymentMarker;
import org.jboss.as.server.deployment.module.ResourceRoot;
import org.jboss.logging.Logger;
import org.jboss.vfs.VirtualFile;
import java.util.List;
/**
* Perform scoped search for persistence unit name
*
* @author Scott Marlow (forked from Carlo de Wolf code).
* @author Stuart Douglas
*/
public class PersistenceUnitSearch {
private static final Logger log = Logger.getLogger("org.jboss.jpa");
// cache the trace enabled flag
private static final boolean traceEnabled = log.isTraceEnabled();
public static PersistenceUnitMetadata resolvePersistenceUnitSupplier(DeploymentUnit deploymentUnit, String persistenceUnitName) {
if (traceEnabled) {
log.tracef("pu search for name '%s' inside of %s", persistenceUnitName, deploymentUnit.getName());
}
int i = (persistenceUnitName == null ? -1 : persistenceUnitName.indexOf('#'));
if (i != -1) {
final String path = persistenceUnitName.substring(0, i);
final String name = persistenceUnitName.substring(i + 1);
PersistenceUnitMetadata pu = getPersistenceUnit(deploymentUnit, path, name);
if (traceEnabled) {
log.trace("pu search found " + pu.getScopedPersistenceUnitName());
}
return pu;
} else {
PersistenceUnitMetadata name = findPersistenceUnitSupplier(deploymentUnit, persistenceUnitName);
if (traceEnabled) {
if (name != null) {
log.trace("pu search found " + name);
}
}
return name;
}
}
private static PersistenceUnitMetadata findPersistenceUnitSupplier(DeploymentUnit deploymentUnit, String persistenceUnitName) {
PersistenceUnitMetadata name = findWithinDeployment(deploymentUnit, persistenceUnitName);
if (name == null) {
name = findWithinApplication(getTopLevel(deploymentUnit), persistenceUnitName);
}
return name;
}
private static PersistenceUnitMetadata findWithinApplication(DeploymentUnit unit, String persistenceUnitName) {
PersistenceUnitMetadata name = findWithinDeployment(unit, persistenceUnitName);
if (name != null) {
return name;
}
List<ResourceRoot> resourceRoots = unit.getAttachmentList(Attachments.RESOURCE_ROOTS);
for (ResourceRoot resourceRoot : resourceRoots) {
if (!SubDeploymentMarker.isSubDeployment(resourceRoot)) {
name = findWithinLibraryJar(resourceRoot, persistenceUnitName);
if (name != null) {
return name;
}
}
}
return null;
}
private static PersistenceUnitMetadata findWithinLibraryJar(ResourceRoot moduleResourceRoot, String persistenceUnitName) {
final ResourceRoot deploymentRoot = moduleResourceRoot;
PersistenceUnitMetadataHolder holder = deploymentRoot.getAttachment(PersistenceUnitMetadataHolder.PERSISTENCE_UNITS);
if (holder == null || holder.getPersistenceUnits() == null)
return null;
for (PersistenceUnitMetadata persistenceUnit : holder.getPersistenceUnits()) {
if (traceEnabled) {
log.tracef("findWithinLibraryJar check '%s' against pu '%s'", persistenceUnitName, persistenceUnit.getPersistenceUnitName());
}
if (persistenceUnitName == null || persistenceUnitName.length() == 0 || persistenceUnit.getPersistenceUnitName().equals(persistenceUnitName)) {
if (traceEnabled) {
log.tracef("findWithinLibraryJar matched '%s' against pu '%s'", persistenceUnitName, persistenceUnit.getPersistenceUnitName());
}
return persistenceUnit;
}
}
return null;
}
/*
* When finding the default persistence unit, the first persistence unit encountered is returned.
*/
private static PersistenceUnitMetadata findWithinDeployment(DeploymentUnit unit, String persistenceUnitName) {
final ResourceRoot deploymentRoot = unit.getAttachment(Attachments.DEPLOYMENT_ROOT);
PersistenceUnitMetadataHolder holder = deploymentRoot.getAttachment(PersistenceUnitMetadataHolder.PERSISTENCE_UNITS);
if (holder == null || holder.getPersistenceUnits() == null)
return null;
for (PersistenceUnitMetadata persistenceUnit : holder.getPersistenceUnits()) {
if (traceEnabled) {
log.tracef("findWithinDeployment check '%s' against pu '%s'", persistenceUnitName, persistenceUnit.getPersistenceUnitName());
}
if (persistenceUnitName == null || persistenceUnitName.length() == 0 || persistenceUnit.getPersistenceUnitName().equals(persistenceUnitName)) {
if (traceEnabled) {
log.tracef("findWithinDeployment matched '%s' against pu '%s'", persistenceUnitName, persistenceUnit.getPersistenceUnitName());
}
return persistenceUnit;
}
}
return null;
}
private static DeploymentUnit getTopLevel(DeploymentUnit du) {
return du.getParent() == null ? du : du.getParent();
}
private static PersistenceUnitMetadata getPersistenceUnit(DeploymentUnit current, final String absolutePath, String puName) {
final String path;
if (absolutePath.startsWith("../")) {
path = absolutePath.substring(3);
} else {
path = absolutePath;
}
final VirtualFile parent = current.getAttachment(Attachments.DEPLOYMENT_ROOT).getRoot().getParent();
final VirtualFile resolvedPath = parent.getChild(path);
List<ResourceRoot> resourceRoots = DeploymentUtils.allResourceRoots(getTopLevel(current));
for (ResourceRoot resourceRoot : resourceRoots) {
if (resourceRoot.getRoot().equals(resolvedPath)) {
PersistenceUnitMetadataHolder holder = resourceRoot.getAttachment(PersistenceUnitMetadataHolder.PERSISTENCE_UNITS);
if (holder != null) {
for (PersistenceUnitMetadata pu : holder.getPersistenceUnits()) {
if (traceEnabled) {
log.tracef("getPersistenceUnit check '%s' against pu '%s'", puName, pu.getPersistenceUnitName());
}
if (pu.getPersistenceUnitName().equals(puName)) {
if (traceEnabled) {
log.tracef("getPersistenceUnit matched '%s' against pu '%s'", puName, pu.getPersistenceUnitName());
}
return pu;
}
}
}
}
}
throw new IllegalArgumentException("Can't find a deployment unit named " + absolutePath + "#" + puName + " at " + current);
}
}