/** Construct a join predicate on collection (eg many to many, List) */
public <T> List<Predicate> byExampleOnManyToMany(
ManagedType<T> mt,
Root<T> mtPath,
final T mtValue,
SearchParameters sp,
CriteriaBuilder builder) {
List<Predicate> predicates = newArrayList();
for (PluralAttribute<T, ?, ?> pa : mt.getDeclaredPluralAttributes()) {
if (pa.getCollectionType() == PluralAttribute.CollectionType.LIST) {
List<?> values = (List<?>) JpaUtil.getValue(mtValue, mt.getAttribute(pa.getName()));
if (values != null && !values.isEmpty()) {
if (sp.getUseANDInManyToMany()) {
if (values.size() > 3) {
log.warn(
"Please note that using AND restriction on an Many to Many relationship requires as many joins as values");
}
for (Object value : values) {
ListJoin<T, ?> join = mtPath.join(mt.getDeclaredList(pa.getName()));
predicates.add(join.in(value));
}
} else {
ListJoin<T, ?> join = mtPath.join(mt.getDeclaredList(pa.getName()));
predicates.add(join.in(values));
}
}
}
}
return predicates;
}
/**
* Invoke byExample method for each not null x-to-one association when their pk is not set. This
* allows you to search entities based on an associated entity's properties value.
*/
@SuppressWarnings("unchecked")
public <T extends Identifiable<?>, M2O extends Identifiable<?>> List<Predicate> byExampleOnXToOne(
ManagedType<T> mt,
Root<T> mtPath,
final T mtValue,
SearchParameters sp,
CriteriaBuilder builder) {
List<Predicate> predicates = newArrayList();
for (SingularAttribute<? super T, ?> attr : mt.getSingularAttributes()) {
if (attr.getPersistentAttributeType() == MANY_TO_ONE
|| attr.getPersistentAttributeType() == ONE_TO_ONE) {
M2O m2oValue = (M2O) JpaUtil.getValue(mtValue, mt.getAttribute(attr.getName()));
Class<M2O> m2oType = (Class<M2O>) attr.getBindableJavaType();
Path<M2O> m2oPath = (Path<M2O>) mtPath.get(attr);
ManagedType<M2O> m2oMt = em.getMetamodel().entity(m2oType);
if (m2oValue != null) {
if (m2oValue.isIdSet()) { // we have an id, let's restrict only on this field
predicates.add(builder.equal(m2oPath.get("id"), m2oValue.getId()));
} else {
predicates.addAll(byExample(m2oMt, m2oPath, m2oValue, sp, builder));
}
}
}
}
return predicates;
}
private void clearTables(EntityManagerFactory emf) throws SQLException {
long start = System.currentTimeMillis();
Set<ManagedType<?>> types = emf.getMetamodel().getManagedTypes();
EntityManager entityManager = makeEntityManager(emf);
Set<Class<?>> javaTypes = new HashSet<Class<?>>();
for (ManagedType<?> type : types) {
javaTypes.add(type.getJavaType());
}
int lastsize = javaTypes.size();
while (!javaTypes.isEmpty()) {
Iterator<Class<?>> iterator = javaTypes.iterator();
Collection<Exception> exceptionsDuringClean = new ArrayList<Exception>();
while (iterator.hasNext()) {
Class<?> javaType = iterator.next();
String name = retrieveEntityName(javaType);
if (name == null) {
LOGGER.warn("could not determine name for entity {}", javaType);
iterator.remove();
continue;
}
try {
entityManager.getTransaction().begin();
entityManager.createQuery("DELETE FROM " + name).executeUpdate();
entityManager.getTransaction().commit();
iterator.remove();
} catch (Exception e) {
if (e instanceof PersistenceException
|| e.getClass()
.getName()
.equals(
"org.eclipse.persistence.exceptions.DatabaseException") // for eclipse-link
// < 2.5.0
) {
exceptionsDuringClean.add(e);
LOGGER.debug("error during delete, could be normal", e);
entityManager.getTransaction().rollback();
}
}
}
if (javaTypes.size() == lastsize) {
entityManager.getTransaction().begin();
entityManager.createNativeQuery("SHUTDOWN").executeUpdate();
try {
entityManager.getTransaction().commit();
} catch (Exception e) {
// will always fail because database is shutting down,
// but we need to clear the transaction-state in the entitymanager
break;
}
LOGGER.error("could not clean database", exceptionsDuringClean.iterator().next());
}
lastsize = javaTypes.size();
}
entityManager.close();
LOGGER.info("cleared database in {}ms", System.currentTimeMillis() - start);
}
/*
* ************************************************************************
* EDM Property Name - RULES
* ************************************************************************
* OData Property Names are represented in Camel Case. The first character
* of JPA Attribute Name is converted to an UpperCase Character and set as
* OData Property Name. JPA Attribute Name is set as Internal Name for OData
* Property. The Column name (annotated as @Column(name="x")) is set as
* column name in the mapping object.
* ************************************************************************
* EDM Property Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmPropertyView view, final boolean isComplexMode) {
Attribute<?, ?> jpaAttribute = view.getJPAAttribute();
String jpaAttributeName = jpaAttribute.getName();
String propertyName = null;
JPAEdmMappingModelAccess mappingModelAccess = view.getJPAEdmMappingModelAccess();
if (mappingModelAccess != null && mappingModelAccess.isMappingModelExists()) {
if (isComplexMode) {
propertyName =
mappingModelAccess.mapJPAEmbeddableTypeAttribute(
view.getJPAEdmComplexTypeView()
.getJPAEmbeddableType()
.getJavaType()
.getSimpleName(),
jpaAttributeName);
} else {
propertyName =
mappingModelAccess.mapJPAAttribute(
view.getJPAEdmEntityTypeView().getJPAEntityType().getName(), jpaAttributeName);
}
}
if (propertyName == null) {
propertyName =
Character.toUpperCase(jpaAttributeName.charAt(0)) + jpaAttributeName.substring(1);
}
view.getEdmSimpleProperty().setName(propertyName);
JPAEdmMapping mapping = new JPAEdmMappingImpl();
((Mapping) mapping).setInternalName(jpaAttributeName);
AnnotatedElement annotatedElement = (AnnotatedElement) jpaAttribute.getJavaMember();
if (annotatedElement != null) {
Column column = annotatedElement.getAnnotation(Column.class);
if (column != null) {
mapping.setJPAColumnName(column.name());
}
} else {
ManagedType<?> managedType = jpaAttribute.getDeclaringType();
if (managedType != null) {
Class<?> clazz = managedType.getJavaType();
try {
Field field = clazz.getDeclaredField(jpaAttributeName);
Column column = field.getAnnotation(Column.class);
if (column != null) {
mapping.setJPAColumnName(column.name());
}
} catch (SecurityException e) {
} catch (NoSuchFieldException e) {
}
}
}
view.getEdmSimpleProperty().setMapping((Mapping) mapping);
}
/** Add a predicate for each simple property whose value is not null. */
public <T> List<Predicate> byExample(
ManagedType<T> mt,
Path<T> mtPath,
final T mtValue,
SearchParameters sp,
CriteriaBuilder builder) {
List<Predicate> predicates = newArrayList();
for (SingularAttribute<? super T, ?> attr : mt.getSingularAttributes()) {
if (attr.getPersistentAttributeType() == MANY_TO_ONE //
|| attr.getPersistentAttributeType() == ONE_TO_ONE //
|| attr.getPersistentAttributeType() == EMBEDDED) {
continue;
}
Object attrValue = JpaUtil.getValue(mtValue, attr);
if (attrValue != null) {
if (attr.getJavaType() == String.class) {
if (isNotEmpty((String) attrValue)) {
predicates.add(
JpaUtil.stringPredicate(
mtPath.get(JpaUtil.stringAttribute(mt, attr)), attrValue, sp, builder));
}
} else {
predicates.add(builder.equal(mtPath.get(JpaUtil.attribute(mt, attr)), attrValue));
}
}
}
return predicates;
}
@Path("/typepermissions/{username}/{action}")
@GET
@RunAsAdmin
public NameValueList hasTypePermission(
@PathParam("username") String username, @PathParam("action") String actionName) {
List<FxRole> roles = new ArrayList<>(1);
FxRole user = FxRole.loadByName(username, em);
roles.add(user);
NameValueList mList = new NameValueList();
Action action = ACLHelper.getActionByName(actionName);
for (ManagedType<?> t : JpaMetamodelHelper.getMetamodel().getManagedTypes()) {
if (permissionChecker.hasPermission(action, roles, t.getJavaType().getSimpleName(), null)) {
mList.addPair(t.getJavaType().getSimpleName(), "true");
} else {
mList.addPair(t.getJavaType().getSimpleName(), "false");
}
}
return mList;
}
