private Object unmarshall(PersistentEntity persistentEntity, Long id, Map<String, Object> data) {
log.debug("unmarshalling entity {}, props {}, {}", id, data);
EntityAccess entityAccess = new EntityAccess(persistentEntity, persistentEntity.newInstance());
entityAccess.setConversionService(persistentEntity.getMappingContext().getConversionService());
entityAccess.setIdentifier(id);
data.remove("__id__");
for (PersistentProperty property :
entityAccess.getPersistentEntity().getPersistentProperties()) {
String propertyName = property.getName();
if (property instanceof Simple) { // implicitly sets version property as well
entityAccess.setProperty(propertyName, data.remove(propertyName));
// } else if (property instanceof OneToOne) {
// log.error("property " + property.getName() + " is of type " +
// property.getClass().getSuperclass());
} else if (property instanceof ToOne) {
ToOne to = (ToOne) property;
CypherResult cypherResult =
getSession()
.getNativeInterface()
.execute(
CypherBuilder.findRelationshipEndpointIdsFor(to),
Collections.singletonMap("id", id));
Map<String, Object> row = IteratorUtil.singleOrNull(cypherResult);
if (row != null) {
Long endpointId = (Long) row.get("id");
entityAccess.setProperty(
propertyName,
getMappingContext()
.getProxyFactory()
.createProxy(session, to.getAssociatedEntity().getJavaClass(), endpointId));
}
} else if ((property instanceof OneToMany) || (property instanceof ManyToMany)) {
LazyEnititySet lazyEnititySet =
new LazyEnititySet(
entityAccess,
(Association) property,
getMappingContext().getProxyFactory(),
getSession());
entityAccess.setProperty(propertyName, lazyEnititySet);
} else {
throw new IllegalArgumentException(
"property $property.name is of type ${property.class.superclass}");
}
}
if (!data.isEmpty()) {
GroovyObject go = (GroovyObject) (entityAccess.getEntity());
go.setProperty(Neo4jGormEnhancer.UNDECLARED_PROPERTIES, data);
}
firePostLoadEvent(entityAccess.getPersistentEntity(), entityAccess);
return entityAccess.getEntity();
}
private void persistAssociationsOfEntity(
PersistentEntity pe, EntityAccess entityAccess, boolean isUpdate) {
Object obj = entityAccess.getEntity();
DirtyCheckable dirtyCheckable = null;
if (obj instanceof DirtyCheckable) {
dirtyCheckable = (DirtyCheckable) obj;
}
for (PersistentProperty pp : pe.getAssociations()) {
if ((!isUpdate) || ((dirtyCheckable != null) && dirtyCheckable.hasChanged(pp.getName()))) {
Object propertyValue = entityAccess.getProperty(pp.getName());
if ((pp instanceof OneToMany) || (pp instanceof ManyToMany)) {
Association association = (Association) pp;
if (propertyValue != null) {
if (association.isBidirectional()) { // Populate other side of bidi
for (Object associatedObject : (Iterable) propertyValue) {
EntityAccess assocEntityAccess =
createEntityAccess(association.getAssociatedEntity(), associatedObject);
assocEntityAccess.setProperty(association.getReferencedPropertyName(), obj);
}
}
Iterable targets = (Iterable) propertyValue;
persistEntities(association.getAssociatedEntity(), targets);
boolean reversed = RelationshipUtils.useReversedMappingFor(association);
if (!reversed) {
if (!(propertyValue instanceof LazyEnititySet)) {
LazyEnititySet les =
new LazyEnititySet(
entityAccess,
association,
getMappingContext().getProxyFactory(),
getSession());
les.addAll(targets);
entityAccess.setProperty(association.getName(), les);
}
}
}
} else if (pp instanceof ToOne) {
if (propertyValue != null) {
ToOne to = (ToOne) pp;
if (to.isBidirectional()) { // Populate other side of bidi
EntityAccess assocEntityAccess =
createEntityAccess(to.getAssociatedEntity(), propertyValue);
if (to instanceof OneToOne) {
assocEntityAccess.setProperty(to.getReferencedPropertyName(), obj);
} else {
Collection collection =
(Collection) assocEntityAccess.getProperty(to.getReferencedPropertyName());
if (collection == null) {
collection = new ArrayList();
assocEntityAccess.setProperty(to.getReferencedPropertyName(), collection);
}
if (!collection.contains(obj)) {
collection.add(obj);
}
}
}
persistEntity(to.getAssociatedEntity(), propertyValue);
boolean reversed = RelationshipUtils.useReversedMappingFor(to);
String relType = RelationshipUtils.relationshipTypeUsedFor(to);
if (!reversed) {
getSession()
.addPendingInsert(
new RelationshipPendingInsert(
entityAccess,
relType,
new EntityAccess(to.getAssociatedEntity(), propertyValue),
getCypherEngine()));
}
}
} else {
throw new IllegalArgumentException(
"wtf don't know how to handle " + pp + "(" + pp.getClass() + ")");
}
}
}
}
public void initializeClassMapping(
Class javaClass, MappingContext context, ClassMapping mapping) {
if (properties.containsKey(javaClass)) {
return;
}
List<PersistentProperty> persistentProperties = new ArrayList<PersistentProperty>();
Set<Class> owners = new HashSet<Class>();
properties.put(javaClass, persistentProperties);
owningEntities.put(javaClass, owners);
final ClassPropertyFetcher cpf = ClassPropertyFetcher.forClass(javaClass);
final PersistentEntity owner = getPersistentEntity(javaClass, context, mapping);
for (PropertyDescriptor propertyDescriptor : cpf.getPropertyDescriptors()) {
if (propertyDescriptor.getReadMethod() != null
&& propertyDescriptor.getWriteMethod() != null) {
Field field;
try {
field = cpf.getDeclaredField(propertyDescriptor.getName());
} catch (Exception e) {
continue;
}
if (field != null) {
if (field.getAnnotation(Basic.class) != null
|| field.getAnnotation(Temporal.class) != null
|| field.getAnnotation(Version.class) != null) {
persistentProperties.add(
propertyFactory.createSimple(owner, context, propertyDescriptor));
} else if (field.getAnnotation(Id.class) != null) {
identities.put(
javaClass, propertyFactory.createIdentity(owner, context, propertyDescriptor));
} else if (field.getAnnotation(Embedded.class) != null) {
final org.grails.datastore.mapping.model.types.Embedded embeddedProperty =
propertyFactory.createEmbedded(owner, context, propertyDescriptor);
embeddedProperty.setAssociatedEntity(
getOrCreateAssociatedEntity(context, field.getType()));
persistentProperties.add(embeddedProperty);
} else if (field.getAnnotation(OneToOne.class) != null) {
OneToOne one2one = field.getAnnotation(OneToOne.class);
if (one2one.mappedBy() != null && one2one.targetEntity() != null) {
owners.add(one2one.targetEntity());
}
final ToOne oneToOneProperty =
propertyFactory.createOneToOne(owner, context, propertyDescriptor);
oneToOneProperty.setAssociatedEntity(
getOrCreateAssociatedEntity(context, field.getType()));
persistentProperties.add(oneToOneProperty);
} else if (field.getAnnotation(OneToMany.class) != null) {
OneToMany one2m = field.getAnnotation(OneToMany.class);
if (one2m.mappedBy() != null && one2m.targetEntity() != null) {
owners.add(one2m.targetEntity());
}
final org.grails.datastore.mapping.model.types.OneToMany oneToManyProperty =
propertyFactory.createOneToMany(owner, context, propertyDescriptor);
oneToManyProperty.setAssociatedEntity(
getOrCreateAssociatedEntity(context, one2m.targetEntity()));
persistentProperties.add(oneToManyProperty);
} else if (field.getAnnotation(ManyToMany.class) != null) {
ManyToMany m2m = field.getAnnotation(ManyToMany.class);
if (m2m.mappedBy() != null && m2m.targetEntity() != null) {
owners.add(m2m.targetEntity());
}
final org.grails.datastore.mapping.model.types.ManyToMany manyToManyProperty =
propertyFactory.createManyToMany(owner, context, propertyDescriptor);
manyToManyProperty.setAssociatedEntity(
getOrCreateAssociatedEntity(context, m2m.targetEntity()));
persistentProperties.add(manyToManyProperty);
} else if (field.getAnnotation(ManyToOne.class) != null) {
final ToOne manyToOneProperty =
propertyFactory.createManyToOne(owner, context, propertyDescriptor);
manyToOneProperty.setAssociatedEntity(
getOrCreateAssociatedEntity(context, field.getType()));
persistentProperties.add(manyToOneProperty);
} else if (field.getAnnotation(Transient.class) == null) {
persistentProperties.add(
propertyFactory.createSimple(owner, context, propertyDescriptor));
}
}
}
}
}
