public EntityError Resolve(EntityManager em) {
IsServerError = true;
try {
EntityType entityType = null;
if (EntityTypeName != null) {
var stName = StructuralType.ClrTypeNameToStructuralTypeName(EntityTypeName);
entityType = MetadataStore.Instance.GetEntityType(stName);
var ek = new EntityKey(entityType, KeyValues);
Entity = em.FindEntityByKey(ek);
}
if (PropertyName != null) {
PropertyName = MetadataStore.Instance.NamingConvention.ServerPropertyNameToClient(PropertyName);
}
if (Entity != null) {
Property = entityType.GetProperty(PropertyName);
var vc = new ValidationContext(this.Entity);
vc.Property = this.Property;
var veKey = (ErrorName ?? ErrorMessage) + (PropertyName ?? "");
var ve = new ValidationError(null, vc, ErrorMessage, veKey);
ve.IsServerError = true;
this.Entity.EntityAspect.ValidationErrors.Add(ve);
}
} catch (Exception e) {
ErrorMessage = ( ErrorMessage ?? "") + ": Unable to Resolve this error: " + e.Message;
}
return this;
}
protected virtual Object CreateAndPopulate(JsonContext jsonContext) {
var jObject = jsonContext.JObject;
JToken refToken = null;
if (jObject.TryGetValue("$ref", out refToken)) {
return _refMap[refToken.Value<String>()];
}
var objectType = jsonContext.ObjectType;
var entityType = _metadataStore.GetEntityType(objectType);
// an entity type
jsonContext.StructuralType = entityType;
var keyValues = entityType.KeyProperties
.Select(p => jObject[p.Name].ToObject(p.ClrType))
.ToArray();
var entityKey = new EntityKey(entityType, keyValues);
var entity = _entityManager.FindEntityByKey(entityKey);
if (entity == null) {
entity = (IEntity)Activator.CreateInstance(objectType);
}
// must be called before populate
UpdateRefMap(jObject, entity);
return PopulateEntity(jsonContext, entity);
}
public void RemoveChildren(EntityKey parentEntityKey, NavigationProperty navProp) {
var navChildrenList = GetNavChildrenList(parentEntityKey, false);
if (navChildrenList == null) return;
var ix = navChildrenList.IndexOf(nc => nc.NavigationProperty == navProp);
if (ix != -1) return;
navChildrenList.RemoveAt(ix);
if (navChildrenList.Count == 0) {
_map.Remove(parentEntityKey);
}
}
public List<NavChildren> GetNavChildrenList(EntityKey entityKey, bool createIfNotFound) {
List<NavChildren> navChildrenList = null;
if (_map.TryGetValue(entityKey, out navChildrenList)) {
return navChildrenList;
} else {
if (createIfNotFound) {
navChildrenList = new List<NavChildren>();
_map.Add(entityKey, navChildrenList);
}
}
return navChildrenList;
}
public HashSet<IEntity> GetNavChildren(EntityKey entityKey, NavigationProperty navProp, bool createIfNotFound) {
List<NavChildren> navChildrenList = GetNavChildrenList(entityKey, createIfNotFound);
if (navChildrenList == null) return null;
var navChildren = navChildrenList.FirstOrDefault(uc => uc.NavigationProperty == navProp);
if (navChildren == null && createIfNotFound) {
navChildren = new NavChildren() {NavigationProperty = navProp, Children = new HashSet<IEntity>() };
navChildrenList.Add(navChildren);
}
var children = navChildren.Children;
children.RemoveWhere( entity => entity.EntityAspect.EntityState.IsDetached());
return children;
}
private Tuple<EntityKey, EntityKey> ToEntityKeys(KeyMapping keyMapping) {
var entityTypeName = NormalizeEntityTypeName(keyMapping.EntityTypeName);
var et = MetadataStore.Instance.GetEntityType(entityTypeName);
var oldKey = new EntityKey(et, keyMapping.TempValue);
var newKey = new EntityKey(et, keyMapping.RealValue);
return Tuple.Create(oldKey, newKey);
}
internal void ReplaceKey(EntityAspect entityAspect, EntityKey oldKey, EntityKey newKey)
{
_entityKeyMap.Remove(oldKey); // it may not exist if this object was just Imported or Queried.
_entityKeyMap.Add(newKey, entityAspect);
}
public T FindEntityByKey <T>(params Object[] values) where T : IEntity
{
var ek = new EntityKey(typeof(T), values);
return((T)FindEntityByKey(ek));
}
public T FindEntityByKey <T>(EntityKey entityKey)
{
return((T)FindEntityByKey(entityKey));
}
public void AddChild(EntityKey parentEntityKey, NavigationProperty navProp, IEntity child) {
var navChildren = GetNavChildren(parentEntityKey, navProp, true);
navChildren.Add(child);
}