private static void ambiguousPUError(
DeploymentUnit unit, String persistenceUnitName, PersistenceUnitMetadataHolder holder) {
if (holder.getPersistenceUnits().size() > 1
&& (persistenceUnitName == null || persistenceUnitName.length() == 0)) {
int numberOfDefaultPersistenceUnits = 0;
// get number of persistence units that are marked as default
for (PersistenceUnitMetadata persistenceUnit : holder.getPersistenceUnits()) {
String defaultPU =
persistenceUnit.getProperties().getProperty(Configuration.JPA_DEFAULT_PERSISTENCE_UNIT);
if (Boolean.TRUE.toString().equals(defaultPU)) {
numberOfDefaultPersistenceUnits++;
}
}
ROOT_LOGGER.tracef(
"checking for ambiguous persistence unit injection error, "
+ "number of persistence units marked default (%s) = %d",
Configuration.JPA_DEFAULT_PERSISTENCE_UNIT, numberOfDefaultPersistenceUnits);
// don't throw an error if there is exactly one default persistence unit
if (numberOfDefaultPersistenceUnits != 1) {
// AS7-2275 no unitName and there is more than one persistence unit;
throw MESSAGES.noPUnitNameSpecifiedAndMultiplePersistenceUnits(
holder.getPersistenceUnits().size(), unit);
}
}
}
/**
* Simple test driver for parsing the specified persistence.xml file
*
* @param args
*/
public static void main(String[] args) {
try {
String filename;
if (args.length < 1) {
filename = "persistence.xml";
} else filename = args[0];
System.out.println("will parse " + filename);
XMLInputFactory xmlif = XMLInputFactory.newInstance();
XMLStreamReader reader = xmlif.createXMLStreamReader(filename, new FileInputStream(filename));
PersistenceUnitMetadataHolder h = parse(reader);
System.out.println("result = " + h.getPersistenceUnits());
} catch (Exception e) {
e.printStackTrace();
}
}
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(DeploymentUtils.getTopDeploymentUnit(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) {
ROOT_LOGGER.tracef(
"getPersistenceUnit check '%s' against pu '%s'",
puName, pu.getPersistenceUnitName());
}
if (pu.getPersistenceUnitName().equals(puName)) {
if (traceEnabled) {
ROOT_LOGGER.tracef(
"getPersistenceUnit matched '%s' against pu '%s'",
puName, pu.getPersistenceUnitName());
}
return pu;
}
}
}
}
}
throw MESSAGES.persistenceUnitNotFound(absolutePath, puName, current);
}
/*
* When finding the default persistence unit, the first persistence unit encountered is returned.
*/
private static PersistenceUnitMetadata findWithinDeployment(
DeploymentUnit unit, String persistenceUnitName) {
if (traceEnabled) {
ROOT_LOGGER.tracef("pu findWithinDeployment searching for %s", persistenceUnitName);
}
for (ResourceRoot root : DeploymentUtils.allResourceRoots(unit)) {
PersistenceUnitMetadataHolder holder =
root.getAttachment(PersistenceUnitMetadataHolder.PERSISTENCE_UNITS);
if (holder == null || holder.getPersistenceUnits() == null) {
if (traceEnabled) {
ROOT_LOGGER.tracef(
"pu findWithinDeployment skipping empty pu holder for %s", persistenceUnitName);
}
continue;
}
ambiguousPUError(unit, persistenceUnitName, holder);
persistenceUnitName = defaultPersistenceUnitName(persistenceUnitName, holder);
for (PersistenceUnitMetadata persistenceUnit : holder.getPersistenceUnits()) {
if (traceEnabled) {
ROOT_LOGGER.tracef(
"findWithinDeployment check '%s' against pu '%s'",
persistenceUnitName, persistenceUnit.getPersistenceUnitName());
}
if (persistenceUnitName == null
|| persistenceUnitName.length() == 0
|| persistenceUnit.getPersistenceUnitName().equals(persistenceUnitName)) {
if (traceEnabled) {
ROOT_LOGGER.tracef(
"findWithinDeployment matched '%s' against pu '%s'",
persistenceUnitName, persistenceUnit.getPersistenceUnitName());
}
return persistenceUnit;
}
}
}
return null;
}
/**
* if no persistence unit name is specified, return name of default persistence unit
*
* @param persistenceUnitName that was specified to be used (null means to use the default
* persistence unit)
* @param holder
* @return
*/
private static String defaultPersistenceUnitName(
String persistenceUnitName, PersistenceUnitMetadataHolder holder) {
if ((persistenceUnitName == null || persistenceUnitName.length() == 0)) {
for (PersistenceUnitMetadata persistenceUnit : holder.getPersistenceUnits()) {
String defaultPU =
persistenceUnit.getProperties().getProperty(Configuration.JPA_DEFAULT_PERSISTENCE_UNIT);
if (Boolean.TRUE.toString().equals(defaultPU)) {
persistenceUnitName = persistenceUnit.getPersistenceUnitName();
}
}
}
return persistenceUnitName;
}
private static PersistenceUnitMetadata findWithinLibraryJar(
DeploymentUnit unit, ResourceRoot moduleResourceRoot, String persistenceUnitName) {
final ResourceRoot deploymentRoot = moduleResourceRoot;
PersistenceUnitMetadataHolder holder =
deploymentRoot.getAttachment(PersistenceUnitMetadataHolder.PERSISTENCE_UNITS);
if (holder == null || holder.getPersistenceUnits() == null) {
if (traceEnabled) {
ROOT_LOGGER.tracef(
"findWithinLibraryJar checking for '%s' found no persistence units",
persistenceUnitName);
}
return null;
}
ambiguousPUError(unit, persistenceUnitName, holder);
persistenceUnitName = defaultPersistenceUnitName(persistenceUnitName, holder);
for (PersistenceUnitMetadata persistenceUnit : holder.getPersistenceUnits()) {
if (traceEnabled) {
ROOT_LOGGER.tracef(
"findWithinLibraryJar check '%s' against pu '%s'",
persistenceUnitName, persistenceUnit.getPersistenceUnitName());
}
if (persistenceUnitName == null
|| persistenceUnitName.length() == 0
|| persistenceUnit.getPersistenceUnitName().equals(persistenceUnitName)) {
if (traceEnabled) {
ROOT_LOGGER.tracef(
"findWithinLibraryJar matched '%s' against pu '%s'",
persistenceUnitName, persistenceUnit.getPersistenceUnitName());
}
return persistenceUnit;
}
}
return null;
}
public static PersistenceUnitMetadataHolder parse(final XMLStreamReader reader)
throws XMLStreamException {
reader.require(START_DOCUMENT, null, null); // check for a bogus document and throw error
// Read until the first start element
Version version = null;
while (reader.hasNext() && reader.next() != START_ELEMENT) {
if (reader.getEventType() == DTD) {
final String dtdLocation = readDTDLocation(reader);
if (dtdLocation != null) {
version = Version.forLocation(dtdLocation);
}
}
}
final String schemaLocation = readSchemaLocation(reader);
if (schemaLocation != null) {
version = Version.forLocation(schemaLocation);
}
if (version == null || Version.UNKNOWN.equals(version)) {
// Look at the version attribute
String versionString = null;
final int count = reader.getAttributeCount();
for (int i = 0; i < count; i++) {
final String attributeNamespace = reader.getAttributeNamespace(i);
if (attributeNamespace != null && !attributeNamespace.isEmpty()) {
continue;
}
final Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
if (attribute == Attribute.VERSION) {
versionString = reader.getAttributeValue(i);
}
}
if ("1.0".equals(versionString)) {
version = Version.JPA_1_0;
} else if ("1".equals(versionString)) {
version = Version.JPA_1_0;
} else if ("2.0".equals(versionString)) {
version = Version.JPA_2_0;
} else if ("2".equals(versionString)) {
version = Version.JPA_2_0;
} else {
version = Version.JPA_2_0;
}
}
final int count = reader.getAttributeCount();
for (int i = 0; i < count; i++) {
final String value = reader.getAttributeValue(i);
final String attributeNamespace = reader.getAttributeNamespace(i);
if (attributeNamespace != null && !attributeNamespace.isEmpty()) {
continue;
}
final Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case VERSION:
// log.info("version = " + value);
// TODO: handle version
break;
default:
throw unexpectedAttribute(reader, i);
}
}
final List<PersistenceUnitMetadata> PUs = new ArrayList<PersistenceUnitMetadata>();
// until the ending PERSISTENCE tag
while (reader.hasNext() && reader.nextTag() != END_ELEMENT) {
final Element element = Element.forName(reader.getLocalName());
switch (element) {
case PERSISTENCEUNIT:
PersistenceUnitMetadata pu = parsePU(reader, version);
PUs.add(pu);
JPA_LOGGER.readingPersistenceXml(pu.getPersistenceUnitName());
break;
default:
throw unexpectedElement(reader);
}
}
PersistenceUnitMetadataHolder result =
new PersistenceUnitMetadataHolder().setPersistenceUnits(PUs);
if (JPA_LOGGER.isTraceEnabled()) JPA_LOGGER.trace(result.toString());
return result;
}