private static async Task <Object> CreateNestedEntity(IOeDbEnumerator dbEnumerator, Object value, Type nestedEntityType, CancellationToken cancellationToken)
{
Object entity = dbEnumerator.Current;
if (entity == null)
{
return(null);
}
if (dbEnumerator.EntryFactory.EdmNavigationProperty.Type.Definition is EdmCollectionType)
{
Type listType = typeof(List <>).MakeGenericType(new[] { nestedEntityType });
var list = (IList)Activator.CreateInstance(listType);
do
{
Object item = dbEnumerator.Current;
if (item != null)
{
list.Add(await CreateEntity(dbEnumerator, item, item, nestedEntityType, cancellationToken).ConfigureAwait(false));
}
}while (await dbEnumerator.MoveNext(cancellationToken).ConfigureAwait(false));
return(list);
}
return(await CreateEntity(dbEnumerator, value, entity, nestedEntityType, cancellationToken).ConfigureAwait(false));
}
private static async Task <Object> CreateNestedEntity(IOeDbEnumerator dbEnumerator, Object value, Type nestedEntityType)
{
Object entity = dbEnumerator.Current;
if (entity == null)
{
return(null);
}
if (dbEnumerator.EntryFactory.ResourceInfo.IsCollection.GetValueOrDefault())
{
Type listType = typeof(List <>).MakeGenericType(new[] { nestedEntityType });
var list = (IList)Activator.CreateInstance(listType);
do
{
Object item = dbEnumerator.Current;
if (item != null)
{
list.Add(await CreateEntity(dbEnumerator, item, item, nestedEntityType).ConfigureAwait(false));
}
}while (await dbEnumerator.MoveNextAsync().ConfigureAwait(false));
return(list);
}
return(await CreateEntity(dbEnumerator, value, entity, nestedEntityType).ConfigureAwait(false));
}
private static async Task SetNavigationProperty(IOeDbEnumerator dbEnumerator, Object value, Object entity, CancellationToken cancellationToken)
{
PropertyInfo propertyInfo = entity.GetType().GetProperty(dbEnumerator.EntryFactory.EdmNavigationProperty.Name);
Type nestedEntityType = OeExpressionHelper.GetCollectionItemTypeOrNull(propertyInfo.PropertyType) ?? propertyInfo.PropertyType;
Object navigationValue = await CreateNestedEntity(dbEnumerator, value, nestedEntityType, cancellationToken).ConfigureAwait(false);
propertyInfo.SetValue(entity, navigationValue);
}
private static async Task SetNavigationProperty(IOeDbEnumerator dbEnumerator, Object value, Object entity)
{
PropertyInfo propertyInfo = entity.GetType().GetProperty(dbEnumerator.EntryFactory.ResourceInfo.Name);
Type nestedEntityType = OeExpressionHelper.GetCollectionItemType(propertyInfo.PropertyType);
if (nestedEntityType == null)
{
nestedEntityType = propertyInfo.PropertyType;
}
Object navigationValue = await CreateNestedEntity(dbEnumerator, value, nestedEntityType).ConfigureAwait(false);
propertyInfo.SetValue(entity, navigationValue);
}
private static async Task <Object> CreateEntity(IOeDbEnumerator dbEnumerator, Object value, Object entity, Type entityType, CancellationToken cancellationToken)
{
if (OeExpressionHelper.IsTupleType(entity.GetType()))
{
value = entity;
entity = CreateEntityFromTuple(entityType, entity, dbEnumerator.EntryFactory.Accessors);
}
foreach (OeEntryFactory navigationLink in dbEnumerator.EntryFactory.NavigationLinks)
{
await SetNavigationProperty(dbEnumerator.CreateChild(navigationLink), value, entity, cancellationToken).ConfigureAwait(false);
}
return(entity);
}
