/***************************************************/
/**** Interface Methods ****/
/***************************************************/
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
// the BsonReader is sitting at the value whose actual type needs to be found
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Document)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var actualType = nominalType;
if (bsonReader.FindElement(ElementName))
{
var context = BsonDeserializationContext.CreateRoot(bsonReader);
var discriminator = BsonValueSerializer.Instance.Deserialize(context);
actualType = BsonSerializer.LookupActualType(nominalType, discriminator);
}
else
{
actualType = typeof(CustomObject);
}
bsonReader.ReturnToBookmark(bookmark);
return(actualType);
}
return(nominalType);
}
/***************************************************/
/**** Interface Methods ****/
/***************************************************/
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
Type actualType = nominalType;
// the BsonReader is sitting at the value whose actual type needs to be found
BsonType bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Document)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(ElementName))
{
var context = BsonDeserializationContext.CreateRoot(bsonReader);
var discriminator = BsonValueSerializer.Instance.Deserialize(context);
if (discriminator.IsBsonArray)
{
discriminator = discriminator.AsBsonArray.Last(); // last item is leaf class discriminator
}
if (BsonSerializer.IsTypeDiscriminated(nominalType))
{
actualType = BsonSerializer.LookupActualType(nominalType, discriminator);
}
}
bsonReader.ReturnToBookmark(bookmark);
}
return(actualType);
}
// public methods
/// <summary>
/// Gets the actual type of an object by reading the discriminator from a BsonReader.
/// </summary>
/// <param name="bsonReader">The reader.</param>
/// <param name="nominalType">The nominal type.</param>
/// <returns>The actual type.</returns>
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
// the BsonReader is sitting at the value whose actual type needs to be found
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Document)
{
// ensure KnownTypes of nominalType are registered (so IsTypeDiscriminated returns correct answer)
BsonSerializer.EnsureKnownTypesAreRegistered(nominalType);
// we can skip looking for a discriminator if nominalType has no discriminated sub types
if (BsonSerializer.IsTypeDiscriminated(nominalType))
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var actualType = nominalType;
if (bsonReader.FindElement(_elementName))
{
var context = BsonDeserializationContext.CreateRoot <BsonValue>(bsonReader);
var discriminator = BsonValueSerializer.Instance.Deserialize(context);
if (discriminator.IsBsonArray)
{
discriminator = discriminator.AsBsonArray.Last(); // last item is leaf class discriminator
}
actualType = BsonSerializer.LookupActualType(nominalType, discriminator);
}
bsonReader.ReturnToBookmark(bookmark);
return(actualType);
}
}
return(nominalType);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
if (!typeof(T).IsAssignableFrom(nominalType))
{
throw new Exception($"Cannot use DiscriminatorConvention<{typeof(T).Name}> for type " + nominalType);
}
var ret = nominalType;
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(ElementName))
{
var value = bsonReader.ReadString();
ret = Type.GetType(value);
if (ret == null)
{
throw new Exception("Could not find type from " + value);
}
if (!typeof(T).IsAssignableFrom(ret) && !ret.IsSubclassOf(typeof(T)))
{
throw new Exception("type is not an IRestriction");
}
}
bsonReader.ReturnToBookmark(bookmark);
return(ret);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
if (nominalType == typeof(OrderModel))
{
var ret = nominalType;
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(orderType))
{
var value = bsonReader.ReadString();
ret = OrderTypeResolver.ResolveOrderType(value);
if (ret == null)
{
throw new Exception("Could not find type " + value);
}
if (!ret.IsSubclassOf(typeof(OrderModel)))
{
throw new Exception("Database type does not inherit from OrderModel.");
}
}
bsonReader.ReturnToBookmark(bookmark);
return(ret);
}
else
{
return(nominalType);
}
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
if (nominalType == typeof(JobTask))
{
var ret = nominalType;
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(ElementName))
{
var value = bsonReader.ReadString();
ret = Type.GetType(value);
if (ret == null)
throw new Exception("Could not find type " + value);
if (!ret.IsSubclassOf(typeof(JobTask)))
throw new Exception("Database type does not inherit from JobTask.");
}
bsonReader.ReturnToBookmark(bookmark);
return ret;
}
else
{
return nominalType;
}
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
string typeValue = string.Empty;
if (bsonReader.FindElement(ElementName))
typeValue = bsonReader.ReadString();
else
throw new NotSupportedException();
bsonReader.ReturnToBookmark(bookmark);
var retr = Type.GetType(typeValue) ?? Type.GetType("ThreeOneThree.Proxima.Core.Entities." + typeValue);
return retr;
}
internal static Type FindDocumentType(this IBsonReader reader, Type nominalType)
{
var bookmark = reader.GetBookmark();
var actualType = nominalType;
reader.ReadStartDocument();
if (reader.FindElement(Conventions.Type))
{
actualType = ReadActualType(reader, nominalType);
}
reader.ReturnToBookmark(bookmark);
reader.ReadStartDocument();
if (reader.FindElement(Conventions.TypeAlias))
{
actualType = ReadActualType(reader, nominalType);
}
reader.ReturnToBookmark(bookmark);
return(actualType);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var t = nominalType;
if (bsonReader.FindElement(ElementName))
{
var raw = bsonReader.ReadString();
var discriminator = _discriminatorMapper.Discriminator(raw);
t = _discriminatorMapper.ConcreteType(discriminator);
}
bsonReader.ReturnToBookmark(bookmark);
return(t);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var ret = nominalType;
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(ElementName))
{
var value = bsonReader.ReadString();
ret = Type.GetType(value);
}
bsonReader.ReturnToBookmark(bookmark);
return(ret);
}
/***************************************************/
/**** Interface Methods ****/
/***************************************************/
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
// the BsonReader is sitting at the value whose actual type needs to be found
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Document)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var actualType = nominalType;
if (bsonReader.FindElement(ElementName))
{
var context = BsonDeserializationContext.CreateRoot(bsonReader);
var discriminator = BsonValueSerializer.Instance.Deserialize(context);
try
{
actualType = BsonSerializer.LookupActualType(nominalType, discriminator);
}
catch
{
BsonDocument doc = new BsonDocument
{
{ "_t", "System.Type" },
{ "Name", discriminator.ToString() }
};
try
{
actualType = Convert.FromBson(doc) as Type;
}
catch { }
}
}
else
{
actualType = typeof(CustomObject);
}
bsonReader.ReturnToBookmark(bookmark);
return(actualType);
}
return(nominalType);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var ret = nominalType;
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(ElementName))
{
var value = bsonReader.ReadString();
ret = AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(a => a.GetTypes().Where(a => a.IsSubclassOf(typeof(Node))))
.FirstOrDefault(a => a.FullName == value);
}
bsonReader.ReturnToBookmark(bookmark);
return(ret);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
string typeValue = string.Empty;
if (bsonReader.FindElement(ElementName))
{
typeValue = bsonReader.ReadString();
}
else
{
throw new NotSupportedException();
}
bsonReader.ReturnToBookmark(bookmark);
var result = Type.GetType(typeValue);
return(result);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
string typeValue = string.Empty;
if (bsonReader.FindElement(ElementName))
{
typeValue = bsonReader.ReadString();
}
else
{
throw new NotSupportedException();
}
bsonReader.ReturnToBookmark(bookmark);
var retr = Type.GetType(typeValue) ?? Type.GetType("ThreeOneThree.Proxima.Core.Entities." + typeValue);
return(retr);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
Type type = null;
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(ElementName))
{
var value = bsonReader.ReadString();
if (typeMap.ContainsKey(value))
{
type = typeMap[value];
}
}
bsonReader.ReturnToBookmark(bookmark);
if (type == null)
{
throw new Exception($"Type mis-configuration can't find bson type for ${nominalType}");
}
return(type);
}
/***************************************************/
/**** Interface Methods ****/
/***************************************************/
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
Type actualType = nominalType;
// the BsonReader is sitting at the value whose actual type needs to be found
BsonType bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Document)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(ElementName))
{
var context = BsonDeserializationContext.CreateRoot(bsonReader);
var discriminator = BsonValueSerializer.Instance.Deserialize(context);
if (discriminator.IsBsonArray)
{
discriminator = discriminator.AsBsonArray.Last(); // last item is leaf class discriminator
}
if (BsonSerializer.IsTypeDiscriminated(nominalType))
{
actualType = BsonSerializer.LookupActualType(nominalType, discriminator);
}
else if (Reflection.Compute.UnqualifiedName(nominalType.FullName) != Reflection.Compute.UnqualifiedName(discriminator.ToString()) && Config.AllowUpgradeFromBson && !Config.TypesWithoutUpgrade.Contains(actualType))
{
actualType = typeof(IDeprecated);
}
}
bsonReader.ReturnToBookmark(bookmark);
if (Config.AllowUpgradeFromBson && actualType.IsDeprecated() && !Config.TypesWithoutUpgrade.Contains(actualType))
{
actualType = typeof(IDeprecated);
}
}
return(actualType);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var ret = nominalType;
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(ElementName))
{
var value = bsonReader.ReadString();
ret = Type.GetType(value);
if (ret == null)
{
throw new Exception("Could not find type " + value);
}
}
bsonReader.ReturnToBookmark(bookmark);
return(ret);
}
public virtual Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (!bsonReader.FindElement(ElementName))
{
bsonReader.ReturnToBookmark(bookmark);
return(nominalType);
}
var typeValue = bsonReader.ReadString();
bsonReader.ReturnToBookmark(bookmark);
var type = GetItemType(new Guid(typeValue));
if (type == null)
{
throw new MongoDerivedTypeResolutionException($"Cannot resolve derived type {typeValue}");
}
return(type);
}
// public methods
/// <summary>
/// Gets the actual type of an object by reading the discriminator from a BsonReader.
/// </summary>
/// <param name="bsonReader">The reader.</param>
/// <param name="nominalType">The nominal type.</param>
/// <returns>The actual type.</returns>
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
// the BsonReader is sitting at the value whose actual type needs to be found
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonReader.State == BsonReaderState.Value)
{
Type primitiveType = null;
switch (bsonType)
{
case BsonType.Boolean: primitiveType = typeof(bool); break;
case BsonType.Binary:
var bookmark = bsonReader.GetBookmark();
var binaryData = bsonReader.ReadBinaryData();
var subType = binaryData.SubType;
if (subType == BsonBinarySubType.UuidStandard || subType == BsonBinarySubType.UuidLegacy)
{
primitiveType = typeof(Guid);
}
bsonReader.ReturnToBookmark(bookmark);
break;
case BsonType.DateTime: primitiveType = typeof(DateTime); break;
case BsonType.Decimal128: primitiveType = typeof(Decimal128); break;
case BsonType.Double: primitiveType = typeof(double); break;
case BsonType.Int32: primitiveType = typeof(int); break;
case BsonType.Int64: primitiveType = typeof(long); break;
case BsonType.ObjectId: primitiveType = typeof(ObjectId); break;
case BsonType.String: primitiveType = typeof(string); break;
}
// Type.IsAssignableFrom is extremely expensive, always perform a direct type check before calling Type.IsAssignableFrom
if (primitiveType != null && (primitiveType == nominalType || nominalType.GetTypeInfo().IsAssignableFrom(primitiveType)))
{
return primitiveType;
}
}
if (bsonType == BsonType.Document)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var actualType = nominalType;
if (bsonReader.FindElement(_elementName))
{
var context = BsonDeserializationContext.CreateRoot(bsonReader);
var discriminator = BsonValueSerializer.Instance.Deserialize(context);
if (discriminator.IsBsonArray)
{
discriminator = discriminator.AsBsonArray.Last(); // last item is leaf class discriminator
}
actualType = BsonSerializer.LookupActualType(nominalType, discriminator);
}
bsonReader.ReturnToBookmark(bookmark);
return actualType;
}
return nominalType;
}
/// <inheritdoc />
public Type GetActualType(
IBsonReader bsonReader,
Type nominalType)
{
if (bsonReader == null)
{
throw new ArgumentNullException(nameof(bsonReader));
}
if (nominalType == null)
{
throw new ArgumentNullException(nameof(nominalType));
}
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
Type result;
if (bsonReader.FindElement(this.ElementName))
{
var value = bsonReader.ReadString();
try
{
result = value.ResolveFromLoadedTypes();
if (result == null)
{
throw new InvalidOperationException(Invariant($"'{nameof(result)}' is null"));
}
}
catch (ArgumentException)
{
bsonReader.ReturnToBookmark(bookmark);
// previously persisted documents will have used Type.Name
// in that case ToTypeRepresentationFromAssemblyQualifiedName will throw.
// this is here for backward compatibility.
result = HierarchicalDiscriminatorConvention.GetActualType(bsonReader, nominalType);
if (result == null)
{
throw new InvalidOperationException(Invariant($"Found discriminator '{value}' when deserializing into {nameof(nominalType)} '{nominalType.ToStringReadable()}', but could not get the actual type using {nameof(TypeNameDiscriminator)}.{nameof(TypeNameDiscriminator.GetActualType)}(); it returned null."));
}
}
}
else
{
// if _t is not in the payload then a discriminator wasn't needed
result = nominalType;
}
bsonReader.ReturnToBookmark(bookmark);
// See notes in ThrowOnUnregisteredTypeIfAppropriate for the need to make this call.
// Note that this is a sub-par solution. Ideally this discriminator would know
// which serializer (and hence which serialization configuration) is being used for deserializing,
// because it is passed as a parameter to this method. Because that's not an option in Mongo,
// we have to use ObcBsonSerializer.SerializationConfigurationInUseForDeserialization, which
// tracks the thread being used for the deserialize operation and associates the serialization
// configuration in-use with the thread.
var serializationConfiguration = ObcBsonSerializer.GetSerializationConfigurationInUseForDeserialization();
// serializationConfiguration is only ever null if the consumer is NOT using the front-door for serialization
// (i.e. a serializer), but using the Mongo driver directly to deserialize. In that case, we do not know
// which serialization configuration is "in use".
serializationConfiguration?.ThrowOnUnregisteredTypeIfAppropriate(result, SerializationDirection.Deserialize, null);
return(result);
}
// public methods
/// <summary>
/// Gets the actual type of an object by reading the discriminator from a BsonReader.
/// </summary>
/// <param name="bsonReader">The reader.</param>
/// <param name="nominalType">The nominal type.</param>
/// <returns>The actual type.</returns>
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
// the BsonReader is sitting at the value whose actual type needs to be found
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Document)
{
// ensure KnownTypes of nominalType are registered (so IsTypeDiscriminated returns correct answer)
BsonSerializer.EnsureKnownTypesAreRegistered(nominalType);
// we can skip looking for a discriminator if nominalType has no discriminated sub types
if (BsonSerializer.IsTypeDiscriminated(nominalType))
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var actualType = nominalType;
if (bsonReader.FindElement(_elementName))
{
var context = BsonDeserializationContext.CreateRoot(bsonReader);
var discriminator = BsonValueSerializer.Instance.Deserialize(context);
if (discriminator.IsBsonArray)
{
discriminator = discriminator.AsBsonArray.Last(); // last item is leaf class discriminator
}
actualType = BsonSerializer.LookupActualType(nominalType, discriminator);
}
bsonReader.ReturnToBookmark(bookmark);
return actualType;
}
}
return nominalType;
}
// public methods
/// <summary>
/// Gets the actual type of an object by reading the discriminator from a BsonReader.
/// </summary>
/// <param name="bsonReader">The reader.</param>
/// <param name="nominalType">The nominal type.</param>
/// <returns>The actual type.</returns>
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
// the BsonReader is sitting at the value whose actual type needs to be found
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonReader.State == BsonReaderState.Value)
{
Type primitiveType = null;
switch (bsonType)
{
case BsonType.Boolean: primitiveType = typeof(bool); break;
case BsonType.Binary:
var bookmark = bsonReader.GetBookmark();
var binaryData = bsonReader.ReadBinaryData();
var subType = binaryData.SubType;
if (subType == BsonBinarySubType.UuidStandard || subType == BsonBinarySubType.UuidLegacy)
{
primitiveType = typeof(Guid);
}
bsonReader.ReturnToBookmark(bookmark);
break;
case BsonType.DateTime: primitiveType = typeof(DateTime); break;
case BsonType.Decimal128: primitiveType = typeof(Decimal128); break;
case BsonType.Double: primitiveType = typeof(double); break;
case BsonType.Int32: primitiveType = typeof(int); break;
case BsonType.Int64: primitiveType = typeof(long); break;
case BsonType.ObjectId: primitiveType = typeof(ObjectId); break;
case BsonType.String: primitiveType = typeof(string); break;
}
// Type.IsAssignableFrom is extremely expensive, always perform a direct type check before calling Type.IsAssignableFrom
if (primitiveType != null && (primitiveType == nominalType || nominalType.GetTypeInfo().IsAssignableFrom(primitiveType)))
{
return(primitiveType);
}
}
if (bsonType == BsonType.Document)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var actualType = nominalType;
if (bsonReader.FindElement(_elementName))
{
var context = BsonDeserializationContext.CreateRoot(bsonReader);
var discriminator = BsonValueSerializer.Instance.Deserialize(context);
if (discriminator.IsBsonArray)
{
discriminator = discriminator.AsBsonArray.Last(); // last item is leaf class discriminator
}
actualType = BsonSerializer.LookupActualType(nominalType, discriminator);
}
bsonReader.ReturnToBookmark(bookmark);
return(actualType);
}
return(nominalType);
}
