/**
* Returns <code>true</code> if the entity name needs to be filtered.
*
* <p>Implementation filteres out inherited hibernate mappings, since the select query for the
* base class will cover any inherited classes as well.
*
* <p>Note, that this method is called after it has been verified that the class has Compass
* mappings (either directly, or indirectly by an interface or a super class).
*
* @param entityname The name of the entity
* @param classMetadata The Hibernate class meta data.
* @param device The Jpa Gps device
* @return <code>true</code> if the entity should be filtered out, <code>false</code> if not.
*/
protected boolean shouldFilter(
String entityname, ClassMetadata classMetadata, Map allClassMetaData, JpaGpsDevice device) {
Class<?> clazz = classMetadata.getMappedClass();
// if it is inherited, do not add it to the classes to index, since the "from [entity]"
// query for the base class will return results for this class as well
if (classMetadata.isInherited()) {
String superClassEntityName = ((AbstractEntityPersister) classMetadata).getMappedSuperclass();
ClassMetadata superClassMetadata = (ClassMetadata) allClassMetaData.get(superClassEntityName);
Class superClass = superClassMetadata.getMappedClass();
// only filter out classes that their super class has compass mappings
if (superClass != null
&& ((CompassGpsInterfaceDevice) device.getGps())
.hasMappingForEntityForIndex(superClass)) {
if (log.isDebugEnabled()) {
log.debug(
"Entity ["
+ entityname
+ "] is inherited and super class ["
+ superClass
+ "] has compass mapping, filtering it out");
}
return true;
}
}
return false;
}
/**
* Takes a class name as a string and find that class and all of its subclasses (transitively)
* returns them as a list.
*/
private static List<Class<?>> hierarchy(Map<String, ClassMetadata> m, String key) {
final List<Class<?>> h = new ArrayList<Class<?>>();
ClassMetadata cm = m.get(key);
Class<?> c = cm.getMappedClass(EntityMode.POJO);
h.add(c);
int index = 0;
while (index < h.size()) {
for (String key2 : m.keySet()) {
if (key.equals(key2)) {
continue;
} else {
cm = m.get(key2);
c = cm.getMappedClass(EntityMode.POJO);
if (c.getSuperclass().equals(h.get(index))) {
h.add(c);
}
}
}
index++;
}
return h;
}
protected void setRelatedClassType(
GrailsHibernateDomainClassProperty prop, AssociationType assType, Type hibernateType) {
try {
String associatedEntity =
assType.getAssociatedEntityName((SessionFactoryImplementor) getSessionFactory());
ClassMetadata associatedMetaData = getSessionFactory().getClassMetadata(associatedEntity);
prop.setRelatedClassType(associatedMetaData.getMappedClass(EntityMode.POJO));
} catch (MappingException me) {
// other side must be a value object
if (hibernateType.isCollectionType()) {
prop.setRelatedClassType(Collection.class);
}
}
}
public EntityInformation[] locate(EntityManagerFactory entityManagerFactory, JpaGpsDevice device)
throws JpaGpsDeviceException {
CompassGpsInterfaceDevice gps = (CompassGpsInterfaceDevice) device.getGps();
HibernateEntityManagerFactory hibernateEntityManagerFactory =
(HibernateEntityManagerFactory) entityManagerFactory;
SessionFactory sessionFactory = hibernateEntityManagerFactory.getSessionFactory();
ArrayList<EntityInformation> entitiesList = new ArrayList<EntityInformation>();
Map allClassMetaData = sessionFactory.getAllClassMetadata();
for (Object o : allClassMetaData.keySet()) {
String entityname = (String) o;
if (!gps.hasMappingForEntityForIndex((entityname))) {
if (log.isDebugEnabled()) {
log.debug("Entity [" + entityname + "] does not have compass mapping, filtering it out");
}
continue;
}
ClassMetadata classMetadata = (ClassMetadata) allClassMetaData.get(entityname);
if (shouldFilter(entityname, classMetadata, allClassMetaData, device)) {
continue;
}
Class<?> clazz = classMetadata.getMappedClass();
ResourceMapping resourceMapping = gps.getMappingForEntityForIndex(entityname);
EntityInformation entityInformation =
new EntityInformation(
clazz,
entityname,
new HibernateJpaQueryProvider(clazz, entityname),
resourceMapping.getSubIndexHash().getSubIndexes());
entitiesList.add(entityInformation);
if (log.isDebugEnabled()) {
log.debug("Entity [" + entityname + "] will be indexed");
}
}
return entitiesList.toArray(new EntityInformation[entitiesList.size()]);
}
/**
* Initializes the metadata needed by this instance.
*
* @param sessionFactory
* @see SessionFactory#getAllClassMetadata()
*/
public void setSessionFactory(SessionFactory sessionFactory) {
if (initialized) {
return; // EARLY EXIT !!
}
log.info("Calculating ExtendedMetadata...");
SessionFactoryImplementor sfi = (SessionFactoryImplementor) sessionFactory;
Map<String, ClassMetadata> m = sessionFactory.getAllClassMetadata();
// do Locks() first because they are used during the
// calculation of LockedBy()
for (String key : m.keySet()) {
ClassMetadata cm = m.get(key);
locksHolder.put(key, new Locks(cm));
}
// now that all Locks() are available, determine LockedBy()
for (String key : m.keySet()) {
lockedByHolder.put(key, lockedByFields(key, m));
}
for (String key : m.keySet()) {
ClassMetadata cm = m.get(key);
immutablesHolder.put(key, new Immutables(cm));
}
for (Map.Entry<String, ClassMetadata> entry : m.entrySet()) {
String key = entry.getKey();
ClassMetadata cm = entry.getValue();
key = key.substring(key.lastIndexOf(".") + 1).toLowerCase();
if (hibernateClasses.containsKey(key)) {
throw new RuntimeException("Duplicate keys!: " + key);
}
hibernateClasses.put(key, cm.getMappedClass(EntityMode.POJO));
}
for (String key : m.keySet()) {
Map<String, Relationship> value = new HashMap<String, Relationship>();
ClassMetadata cm = m.get(key);
for (Class<?> c : hierarchy(m, key)) {
Locks locks = locksHolder.get(c.getName());
locks.fillRelationships(sfi, value);
}
// FIXME: using simple name rather than FQN
Map<String, Relationship> value2 = new HashMap<String, Relationship>();
for (Map.Entry<String, Relationship> i : value.entrySet()) {
String k = i.getKey();
k = k.substring(k.lastIndexOf(".") + 1);
value2.put(k, i.getValue());
}
relationships.put(key.substring(key.lastIndexOf(".") + 1), value2);
}
Set<Class<IAnnotated>> anns = new HashSet<Class<IAnnotated>>();
Set<Class<Annotation>> anns2 = new HashSet<Class<Annotation>>();
for (String key : m.keySet()) {
ClassMetadata cm = m.get(key);
Map<String, String> queries = countQueriesAndEditTargets(key, lockedByHolder.get(key));
collectionCountHolder.putAll(queries);
// Checking classes, specifically for ITypes
Class c = cm.getMappedClass(EntityMode.POJO);
if (IAnnotated.class.isAssignableFrom(c)) {
anns.add(c);
}
if (Annotation.class.isAssignableFrom(c)) {
anns2.add(c);
}
}
annotatableTypes.addAll(anns);
annotationTypes.addAll(anns2);
initialized = true;
}
/** This implementation only supports BeanWithId objects with integer ids */
public Object instantiate(String entityName, EntityMode entityMode, Serializable id) {
ClassMetadata classMetadata = m_sessionFactory.getClassMetadata(entityName);
Class clazz = classMetadata.getMappedClass(entityMode);
return instantiate(clazz, id);
}
