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();
}
@Override
protected DBObject createNewEntry(String family) {
BasicDBObject dbo = new BasicDBObject();
PersistentEntity persistentEntity = getPersistentEntity();
if (!persistentEntity.isRoot()) {
dbo.put(MONGO_CLASS_FIELD, persistentEntity.getDiscriminator());
}
return dbo;
}
public PersistentEntity getRootEntity() {
if (isRoot() || getParentEntity() == null) {
return this;
}
PersistentEntity parent = getParentEntity();
while (!parent.isRoot()) {
parent = parent.getParentEntity();
}
return parent;
}
private String getCollectionName(PersistentEntity persistentEntity, DBObject nativeEntry) {
String collectionName;
if (persistentEntity.isRoot()) {
MongoSession mongoSession = (MongoSession) getSession();
collectionName = mongoSession.getCollectionName(persistentEntity);
} else {
MongoSession mongoSession = (MongoSession) getSession();
collectionName = mongoSession.getCollectionName(persistentEntity.getRootEntity());
}
return collectionName;
}
/**
* Get hold of the GrailsDomainClassProperty represented by the targetClass' propertyName,
* assuming targetClass corresponds to a GrailsDomainClass.
*/
private static PersistentProperty getGrailsDomainClassProperty(
AbstractHibernateDatastore datastore, Class<?> targetClass, String propertyName) {
PersistentEntity grailsClass =
datastore != null
? datastore.getMappingContext().getPersistentEntity(targetClass.getName())
: null;
if (grailsClass == null) {
throw new IllegalArgumentException(
"Unexpected: class is not a domain class:" + targetClass.getName());
}
return grailsClass.getPropertyByName(propertyName);
}
@Override
public Serializable getObjectIdentifier(Object instance) {
if (instance == null) return null;
if (proxyHandler.isProxy(instance)) {
return ((HibernateProxy) instance).getHibernateLazyInitializer().getIdentifier();
}
Class<?> type = instance.getClass();
ClassPropertyFetcher cpf = ClassPropertyFetcher.forClass(type);
final PersistentEntity persistentEntity =
getMappingContext().getPersistentEntity(type.getName());
if (persistentEntity != null) {
return (Serializable)
cpf.getPropertyValue(instance, persistentEntity.getIdentity().getName());
}
return null;
}
@Override
@SuppressWarnings({"rawtypes", "unchecked"})
public Family createMappedForm(PersistentEntity entity) {
ClassPropertyFetcher cpf = ClassPropertyFetcher.forClass(entity.getJavaClass());
final Closure value = cpf.getStaticPropertyValue(GormProperties.MAPPING, Closure.class);
if (value == null) {
return new Region();
}
final Region family = new Region();
AttributesFactory factory =
new AttributesFactory() {
@SuppressWarnings("unused")
public void setRegion(String name) {
family.setRegion(name);
}
};
factory.setDataPolicy(defaultDataPolicy);
MappingConfigurationBuilder builder = new MappingConfigurationBuilder(factory, KeyValue.class);
builder.evaluate(value);
entityToPropertyMap.put(entity, builder.getProperties());
final RegionAttributes regionAttributes = factory.create();
family.setRegionAttributes(regionAttributes);
family.setCacheListeners(regionAttributes.getCacheListeners());
family.setDataPolicy(regionAttributes.getDataPolicy());
family.setCacheLoader(regionAttributes.getCacheLoader());
family.setCacheWriter(regionAttributes.getCacheWriter());
builder = new MappingConfigurationBuilder(family, KeyValue.class);
builder.evaluate(value);
return family;
}
@Override
public Object invokeMethod(String name, Object obj) {
Object[] args = obj.getClass().isArray() ? (Object[]) obj : new Object[] {obj};
if (isCriteriaConstructionMethod(name, args)) {
initializeQuery();
uniqueResult = false;
invokeClosureNode(args[0]);
Object result;
if (!uniqueResult) {
result = query.list();
} else {
result = query.singleResult();
}
query = null;
return result;
}
MetaMethod metaMethod = getMetaClass().getMetaMethod(name, args);
if (metaMethod != null) {
return metaMethod.invoke(this, args);
}
metaMethod = queryMetaClass.getMetaMethod(name, args);
if (metaMethod != null) {
return metaMethod.invoke(query, args);
}
if (args.length == 1 && args[0] instanceof Closure) {
final PersistentProperty property = persistentEntity.getPropertyByName(name);
if (property instanceof Association) {
Association association = (Association) property;
Query previousQuery = query;
PersistentEntity previousEntity = persistentEntity;
Query associationQuery = null;
try {
associationQuery = query.createQuery(property.getName());
if (associationQuery instanceof AssociationQuery) {
previousQuery.add((Query.Criterion) associationQuery);
}
query = associationQuery;
persistentEntity = association.getAssociatedEntity();
invokeClosureNode(args[0]);
return query;
} finally {
persistentEntity = previousEntity;
query = previousQuery;
}
}
}
throw new MissingMethodException(name, getClass(), args);
}
/**
* Returns mapped domain name (*unprefixed*) for the specified @{link PersistentEntity}.
*
* @param entity
* @return
*/
public static String getMappedDomainName(PersistentEntity entity) {
@SuppressWarnings("unchecked")
ClassMapping<SimpleDBDomainClassMappedForm> classMapping = entity.getMapping();
SimpleDBDomainClassMappedForm mappedForm = classMapping.getMappedForm();
String entityFamily = getFamily(entity, mappedForm);
return entityFamily;
}
@Override
protected void deleteEntity(PersistentEntity pe, Object obj) {
EntityAccess entityAccess = createEntityAccess(pe, obj);
if (cancelDelete(pe, entityAccess)) {
return;
}
for (Association association : pe.getAssociations()) {
if (association.isOwningSide() && association.doesCascade(CascadeType.REMOVE)) {
log.debug("cascading delete for property " + association.getName());
GraphPersistentEntity otherPersistentEntity =
(GraphPersistentEntity) association.getAssociatedEntity();
Object otherSideValue = entityAccess.getProperty(association.getName());
if (association instanceof ToOne) {
deleteEntity(otherPersistentEntity, otherSideValue);
} else {
deleteEntities(otherPersistentEntity, (Iterable) otherSideValue);
}
}
}
getCypherEngine()
.execute(
String.format(
"MATCH (n:%s) WHERE n.__id__={id} OPTIONAL MATCH (n)-[r]-() DELETE r,n",
((GraphPersistentEntity) pe).getLabel()),
Collections.singletonMap("id", entityAccess.getIdentifier()));
firePostDeleteEvent(pe, entityAccess);
}
int calcInheritenceChain(PersistentEntity pe) {
if (pe == null) {
return 0;
} else {
return calcInheritenceChain(pe.getParentEntity()) + 1;
}
}
public static List<String> getDatasourceNames(PersistentEntity domainClass) {
final Entity mappedForm = domainClass.getMapping().getMappedForm();
if (mappedForm instanceof Mapping) {
Mapping mapping = (Mapping) mappedForm;
return mapping.getDatasources();
}
return Collections.singletonList(Mapping.DEFAULT_DATA_SOURCE);
}
@Override
protected List<Object> retrieveAllEntities(
PersistentEntity persistentEntity, Iterable<Serializable> keys) {
Query query = session.createQuery(persistentEntity.getJavaClass());
PersistentProperty identity = persistentEntity.getIdentity();
if (keys instanceof List) {
List actualKeys = new ArrayList();
Iterator iterator = keys.iterator();
while (iterator.hasNext()) {
Object key = iterator.next();
Object id = getIdentifierForKey(key);
actualKeys.add(id);
}
query.in(identity.getName(), actualKeys);
} else {
List<Serializable> keyList = new ArrayList<Serializable>();
for (Serializable key : keys) {
keyList.add(key);
}
query.in(identity.getName(), keyList);
}
List<Object> entityResults = new ArrayList<Object>();
Iterator<Serializable> keyIterator = keys.iterator();
Map<Serializable, Object> resultMap = new HashMap<Serializable, Object>();
for (Object o : query.list()) {
if (o instanceof DBObject) {
DBObject dbo = (DBObject) o;
o =
createObjectFromNativeEntry(
getPersistentEntity(), (Serializable) dbo.get(MONGO_ID_FIELD), dbo);
}
resultMap.put(getObjectIdentifier(o), o);
}
while (keyIterator.hasNext()) {
Object key = getIdentifierForKey(keyIterator.next());
ConversionService conversionService = getMappingContext().getConversionService();
key = conversionService.convert(key, identity.getType());
Object o = resultMap.get(key);
entityResults.add(o); // may add null, so entityResults list size matches input list size.
}
return entityResults;
}
private static String getFamily(
PersistentEntity persistentEntity, SimpleDBDomainClassMappedForm mappedForm) {
String table = null;
if (mappedForm != null) {
table = mappedForm.getFamily();
}
if (table == null) table = persistentEntity.getJavaClass().getSimpleName();
return table;
}
@SuppressWarnings("unchecked")
@Override
public Table createMappedForm(PersistentEntity entity) {
Table table = super.createMappedForm(entity);
CassandraPersistentEntity cassandraPersistentEntity = (CassandraPersistentEntity) entity;
// read tableOptions
ClassPropertyFetcher cpf = ClassPropertyFetcher.forClass(entity.getJavaClass());
final Closure value = cpf.getStaticPropertyValue(TABLE_PROPERTIES, Closure.class);
if (value != null) {
MapConfigurationBuilder builder = new MapConfigurationBuilder();
try {
builder.evaluate(value);
} catch (Exception e) {
throw new IllegalMappingException(
String.format("Error reading %s : %s", TABLE_PROPERTIES, e.toString()));
}
table.setTableProperties(builder.getProperties());
}
if (table.getKeyspace() == null) {
table.setKeyspace(keyspace);
}
// additional static mapping block handling
Map<String, Column> properties = entityToPropertyMap.get(entity);
Object version = properties.get(MappingConfigurationBuilder.VERSION_KEY);
if (version instanceof Boolean) {
cassandraPersistentEntity.setVersion((Boolean) version);
}
Column idProperty = properties.get(IDENTITY_PROPERTY);
Iterator<Entry<String, Column>> propertyIterator = properties.entrySet().iterator();
while (propertyIterator.hasNext()) {
Entry<String, Column> entry = propertyIterator.next();
if (entry.getValue() instanceof Column) {
String name = entry.getKey();
Column column = entry.getValue();
if (idProperty != null
&& idProperty.getName() != null
&& idProperty.getName().equals(name)) {
// remove extra column created if id property in constraints block, as it conflicts with
// the column created in mapping block.
// constraints will be handled elsewhere in GORM
propertyIterator.remove();
continue;
}
if (column.getName() == null) {
column.setName(name);
}
table.addColumn(column);
}
}
return table;
}
protected void validatePropertyName(String propertyName, String methodName) {
if (propertyName == null) {
throw new IllegalArgumentException(
"Cannot use [" + methodName + "] restriction with null property name");
}
PersistentProperty property = persistentEntity.getPropertyByName(propertyName);
if (property == null && persistentEntity.getIdentity().getName().equals(propertyName)) {
property = persistentEntity.getIdentity();
}
if (property == null) {
throw new IllegalArgumentException(
"Property ["
+ propertyName
+ "] is not a valid property of class ["
+ persistentEntity
+ "]");
}
}
public static org.hibernate.criterion.DetachedCriteria getHibernateDetachedCriteria(
AbstractHibernateQuery hibernateQuery, QueryableCriteria<?> queryableCriteria) {
String alias = queryableCriteria.getAlias();
PersistentEntity persistentEntity = queryableCriteria.getPersistentEntity();
Class targetClass = persistentEntity.getJavaClass();
org.hibernate.criterion.DetachedCriteria detachedCriteria;
if (alias != null) {
detachedCriteria = org.hibernate.criterion.DetachedCriteria.forClass(targetClass, alias);
} else {
detachedCriteria = org.hibernate.criterion.DetachedCriteria.forClass(targetClass);
}
populateHibernateDetachedCriteria(
new HibernateQuery(detachedCriteria, persistentEntity),
detachedCriteria,
queryableCriteria);
return detachedCriteria;
}
@Override
protected void deleteEntities(
PersistentEntity pe, @SuppressWarnings("rawtypes") Iterable objects) {
List<EntityAccess> entityAccesses = new ArrayList<EntityAccess>();
List<Object> ids = new ArrayList<Object>();
Map<PersistentEntity, Collection<Object>> cascades =
new HashMap<PersistentEntity, Collection<Object>>();
for (Object obj : objects) {
EntityAccess entityAccess = createEntityAccess(pe, obj);
if (cancelDelete(pe, entityAccess)) {
return;
}
entityAccesses.add(entityAccess);
ids.add(entityAccess.getIdentifier());
// populate cascades
for (Association association : pe.getAssociations()) {
Object property = entityAccess.getProperty(association.getName());
if (association.isOwningSide()
&& association.doesCascade(CascadeType.REMOVE)
&& (property != null)) {
PersistentEntity associatedEntity = association.getAssociatedEntity();
Collection<Object> cascadesForPersistentEntity = cascades.get(associatedEntity);
if (cascadesForPersistentEntity == null) {
cascadesForPersistentEntity = new ArrayList<Object>();
cascades.put(associatedEntity, cascadesForPersistentEntity);
}
if (association instanceof ToOne) {
cascadesForPersistentEntity.add(property);
} else {
cascadesForPersistentEntity.addAll((Collection<?>) property);
}
}
}
}
for (Map.Entry<PersistentEntity, Collection<Object>> entry : cascades.entrySet()) {
deleteEntities(entry.getKey(), entry.getValue());
}
getCypherEngine()
.execute(
String.format(
"MATCH (n:%s) WHERE n.__id__ in {ids} OPTIONAL MATCH (n)-[r]-() DELETE r,n",
((GraphPersistentEntity) pe).getLabel()),
Collections.singletonMap("ids", ids));
for (EntityAccess entityAccess : entityAccesses) {
firePostDeleteEvent(pe, entityAccess);
}
}
@Override
protected PersistentEntity discriminatePersistentEntity(
PersistentEntity persistentEntity, DBObject nativeEntry) {
final Object o = nativeEntry.get(MONGO_CLASS_FIELD);
if (o != null) {
final String className = o.toString();
final PersistentEntity childEntity =
getMappingContext()
.getChildEntityByDiscriminator(persistentEntity.getRootEntity(), className);
if (childEntity != null) {
return childEntity;
}
}
return super.discriminatePersistentEntity(persistentEntity, nativeEntry);
}
@Override
@SuppressWarnings("unchecked")
public Identity<Column> createIdentity(
PersistentEntity owner, MappingContext context, PropertyDescriptor pd) {
final Table table = (Table) owner.getMapping().getMappedForm();
if (table.hasCompositePrimaryKeys()) {
return new Identity<Column>(owner, context, table.getPrimaryKeyNames()[0], Map.class) {
PropertyMapping<Column> propertyMapping = createPropertyMapping(this, owner);
public PropertyMapping<Column> getMapping() {
return propertyMapping;
}
};
}
return super.createIdentity(owner, context, pd);
}
public MongoEntityPersister(
MappingContext mappingContext,
PersistentEntity entity,
MongoSession mongoSession,
ApplicationEventPublisher publisher) {
super(mappingContext, entity, mongoSession, publisher);
MongoDatastore datastore = (MongoDatastore) mongoSession.getDatastore();
mongoTemplate = datastore.getMongoTemplate(entity);
collectionName = datastore.getCollectionName(entity);
if (!(entity instanceof EmbeddedPersistentEntity)) {
PersistentProperty identity = entity.getIdentity();
if (identity != null) {
hasNumericalIdentifier = Long.class.isAssignableFrom(identity.getType());
hasStringIdentifier = String.class.isAssignableFrom(identity.getType());
}
}
}
@Override
protected MappingConfigurationBuilder createConfigurationBuilder(
PersistentEntity entity, Mapping mapping) {
return new HibernateMappingBuilder(mapping, entity.getName(), defaultConstraints);
}
public boolean isOwningEntity(PersistentEntity owner) {
return domainClass.isOwningClass(owner.getJavaClass());
}
/**
* @see #getPersistentProperties(Class, org.grails.datastore.mapping.model.MappingContext,
* org.grails.datastore.mapping.model.ClassMapping)
*/
public List<PersistentProperty> getPersistentProperties(
PersistentEntity entity, MappingContext context, ClassMapping classMapping) {
return getPersistentProperties(entity.getJavaClass(), context, classMapping);
}
@Override
public CassandraPersistentProperty createPersistentProperty(
Field field,
PropertyDescriptor descriptor,
CassandraPersistentEntity<?> owner,
SimpleTypeHolder simpleTypeHolder) {
PersistentEntity gormEntity = gormCassandraMappingContext.getPersistentEntity(owner.getName());
final CassandraPersistentProperty property =
super.createPersistentProperty(field, descriptor, owner, simpleTypeHolder);
final CassandraPersistentProperty transientProperty =
new BasicCassandraPersistentProperty(
field, descriptor, owner, (CassandraSimpleTypeHolder) simpleTypeHolder) {
public boolean isTransient() {
return true;
}
};
if (field == null && !property.usePropertyAccess()) {
return transientProperty;
}
if (field != null && Modifier.isTransient(field.getModifiers())) {
return transientProperty;
}
if (field != null && grails.core.GrailsDomainClassProperty.ERRORS.equals(field.getName())) {
return transientProperty;
}
if (field != null && field.getType().equals(Errors.class)) {
return transientProperty;
}
if (field != null
&& (field.getName().contains(INTERNAL_MARKER)
|| field.getName().startsWith(INTERNAL_GRAILS_FIELD_MARKER))) {
return transientProperty;
}
if (descriptor != null
&& descriptor.getWriteMethod() == null
&& descriptor.getReadMethod() == null) {
return transientProperty;
}
Class<?> rawType =
field != null ? field.getType() : descriptor != null ? descriptor.getPropertyType() : null;
if (rawType == null) {
return transientProperty;
}
if (rawType.isEnum()) {
// persist as a string
return new BasicCassandraPersistentProperty(
field, descriptor, owner, (CassandraSimpleTypeHolder) simpleTypeHolder) {
public com.datastax.driver.core.DataType getDataType() {
return CassandraSimpleTypeHolder.getDataTypeFor(String.class);
};
public java.lang.Class<?> getType() {
return String.class;
};
public boolean usePropertyAccess() {
return true;
};
};
} else if (URL.class.isAssignableFrom(rawType)
|| TimeZone.class.isAssignableFrom(rawType)
|| Locale.class.isAssignableFrom(rawType)
|| Currency.class.isAssignableFrom(rawType)
|| Calendar.class.isAssignableFrom(rawType)) {
// persist as a string
return new BasicCassandraPersistentProperty(
field, descriptor, owner, (CassandraSimpleTypeHolder) simpleTypeHolder) {
public com.datastax.driver.core.DataType getDataType() {
return CassandraSimpleTypeHolder.getDataTypeFor(String.class);
};
public java.lang.Class<?> getType() {
return String.class;
};
public boolean isEntity() {
return false;
};
public boolean usePropertyAccess() {
return true;
};
};
} else if (field != null
&& GrailsDomainClassProperty.VERSION.equals(field.getName())
&& !gormEntity.isVersioned()) {
return transientProperty;
}
// for collections or maps of non-primitive types, i.e associations,
// return transient property as spring data cassandra doesn't support
if (!property.isTransient()) {
if (property.isMap() || property.isCollectionLike()) {
try {
property.getDataType();
} catch (InvalidDataAccessApiUsageException e) {
return transientProperty;
}
}
}
return property;
}
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() + ")");
}
}
}
}
