/// <summary>
/// Converts a BlittableJsonReaderObject to an entity.
/// </summary>
/// <param name="entityType"></param>
/// <param name="id">The id.</param>
/// <param name="document">The document found.</param>
/// <returns>The converted entity</returns>
public object ConvertToEntity(Type entityType, string id, ref BlittableJsonReaderObject document, bool trackEntity)
{
try
{
if (entityType == typeof(BlittableJsonReaderObject))
{
return(document);
}
_session.OnBeforeConversionToEntityInvoke(id, entityType, ref document);
var defaultValue = InMemoryDocumentSessionOperations.GetDefaultValue(entityType);
var entity = defaultValue;
ExtensionDataSetter dataSetter = null;
if (trackEntity)
{
dataSetter = RegisterMissingProperties;
}
using (DefaultRavenContractResolver.RegisterExtensionDataSetter(dataSetter))
{
var documentType = _session.Conventions.GetClrType(id, document);
if (documentType != null)
{
var type = Type.GetType(documentType);
if (type != null && entityType.IsAssignableFrom(type))
{
entity = _session.Conventions.DeserializeEntityFromBlittable(type, document);
}
}
if (Equals(entity, defaultValue))
{
entity = _session.Conventions.DeserializeEntityFromBlittable(entityType, document);
}
}
if (id != null)
{
_session.GenerateEntityIdOnTheClient.TrySetIdentity(entity, id);
}
_session.OnAfterConversionToEntityInvoke(id, document, entity);
return(entity);
}
catch (Exception ex)
{
throw new InvalidOperationException($"Could not convert document {id} to entity of type {entityType}",
ex);
}
}
public object FromBlittable(Type type, ref BlittableJsonReaderObject json, string id, bool trackEntity)
{
try
{
if (type == typeof(BlittableJsonReaderObject))
{
return(json);
}
_session.OnBeforeConversionToEntityInvoke(id, type, ref json);
var defaultValue = InMemoryDocumentSessionOperations.GetDefaultValue(type);
var entity = defaultValue;
ExtensionDataSetter dataSetter = null;
if (trackEntity)
{
dataSetter = RegisterMissingProperties;
}
using (DefaultRavenContractResolver.RegisterExtensionDataSetter(dataSetter))
{
var documentTypeAsString = _session.Conventions.GetClrType(id, json);
if (documentTypeAsString != null)
{
var documentType = Type.GetType(documentTypeAsString);
if (documentType != null && type.IsAssignableFrom(documentType))
{
entity = _session.Conventions.Serialization.DeserializeEntityFromBlittable(documentType, json);
}
}
if (Equals(entity, defaultValue))
{
entity = _session.Conventions.Serialization.DeserializeEntityFromBlittable(type, json);
}
}
if (id != null)
{
_session.GenerateEntityIdOnTheClient.TrySetIdentity(entity, id);
}
_session.OnAfterConversionToEntityInvoke(id, json, entity);
return(entity);
}
catch (Exception ex)
{
string jsonAsString = TryReadBlittableAsString(json);
throw new InvalidOperationException($"Could not convert document {id} to entity of type {type}. Json: {jsonAsString}",
ex);
}
string TryReadBlittableAsString(BlittableJsonReaderObject jsonToRead)
{
var jsString = string.Empty;
using (var memoryStream = new MemoryStream())
{
try
{
jsonToRead.WriteJsonToAsync(memoryStream).AsTask().ConfigureAwait(false).GetAwaiter().GetResult();
}
catch
{
// ignore
}
memoryStream.Position = 0;
try
{
using (var sr = new StreamReader(memoryStream))
{
jsString = sr.ReadToEnd();
}
}
catch
{
// ignore
}
}
return(jsString);
}
}
