public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var actualType = nominalType;
while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
var name = bsonReader.ReadName();
if (name == "OnlyInB")
{
actualType = typeof(B);
break;
}
else if (name == "OnlyInC")
{
actualType = typeof(C);
break;
}
bsonReader.SkipValue();
}
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);
}
internal static KeyValuePair <string, object> ReadDocument(this IBsonReader reader)
{
var key = reader.ReadName();
var value = default(object);
// Setting bookmark to beginning of the document to rewind reader later
var beginning = reader.GetBookmark();
reader.ReadStartDocument();
// Reading type before rewinding to the start
var field = reader.ReadName();
// Rewinding back to the start
reader.ReturnToBookmark(beginning);
switch (field)
{
case "_name":
value = BsonSerializer.Deserialize <EntityReference>(reader);
break;
case "_money":
value = BsonSerializer.Deserialize <Money>(reader);
break;
case "_option":
value = BsonSerializer.Deserialize <OptionSetValue>(reader);
break;
}
reader.ReadEndDocument();
return(new KeyValuePair <string, object>(key, value));
}
/***************************************************/
/**** 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);
}
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
if (!typeof(T).IsAssignableFrom(nominalType))
{
throw new Exception($"Cannot use DiscriminatorConvention<{typeof(T).Name}> for type " + nominalType);
}
var ret = nominalType;
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.FindElement(ElementName))
{
var value = bsonReader.ReadString();
ret = Type.GetType(value);
if (ret == null)
{
throw new Exception("Could not find type from " + value);
}
if (!typeof(T).IsAssignableFrom(ret) && !ret.IsSubclassOf(typeof(T)))
{
throw new Exception("type is not an IRestriction");
}
}
bsonReader.ReturnToBookmark(bookmark);
return(ret);
}
// private methods
private bool IsCSharpNullRepresentation(IBsonReader bsonReader)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var bsonType = bsonReader.ReadBsonType();
if (bsonType == BsonType.Boolean)
{
var name = bsonReader.ReadName();
if (name == "_csharpnull" || name == "$csharpnull")
{
var value = bsonReader.ReadBoolean();
if (value)
{
bsonType = bsonReader.ReadBsonType();
if (bsonType == BsonType.EndOfDocument)
{
bsonReader.ReadEndDocument();
return(true);
}
}
}
}
bsonReader.ReturnToBookmark(bookmark);
return(false);
}
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);
}
}
/// <inheritdoc/>
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
ThrowIfNominalTypeIsIncorrect(nominalType);
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
ObjectId id = default;
while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
var fieldName = bsonReader.ReadName();
if (fieldName == ElementName)
{
var partitioned = bsonReader.ReadBoolean();
bsonReader.ReturnToBookmark(bookmark);
return(partitioned ? typeof(Partitioned.PartitionedStreamProcessorState) : typeof(StreamProcessorState));
}
else if (fieldName == "_id")
{
id = bsonReader.ReadObjectId();
}
else
{
bsonReader.SkipValue();
}
}
bsonReader.ReturnToBookmark(bookmark);
throw new StreamProcessorStateDocumentIsMissingPartitionedField(id);
}
/***************************************************/
/**** 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 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;
}
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 retr = Type.GetType(typeValue) ?? Type.GetType("ThreeOneThree.Proxima.Core.Entities." + typeValue);
return(retr);
}
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);
}
/// <inheritdoc/>
public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
ThrowIfNominalTypeIsIncorrect(nominalType);
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
Guid id = default;
while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
switch (bsonReader.ReadName())
{
case Type:
var filterType = Enum.Parse <FilterType>(bsonReader.ReadString());
bsonReader.ReturnToBookmark(bookmark);
return(filterType switch
{
FilterType.EventTypeId => typeof(TypePartitionFilterDefinition),
FilterType.Remote => typeof(RemoteFilterDefinition),
_ => throw new UnsupportedFilterTypeEnumValue(filterType, id)
});
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);
}
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 actualType = nominalType;
while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
var name = bsonReader.ReadName();
if (name == "OnlyInB")
{
actualType = typeof(B);
break;
}
else if (name == "OnlyInC")
{
actualType = typeof(C);
break;
}
bsonReader.SkipValue();
}
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(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;
}
/// <summary>
/// Deserializes an object from a binary source.
/// </summary>
/// <param name="Reader">Binary deserializer.</param>
/// <param name="DataType">Optional datatype. If not provided, will be read from the binary source.</param>
/// <param name="Embedded">If the object is embedded into another.</param>
/// <returns>Deserialized object.</returns>
public override object Deserialize(IBsonReader Reader, BsonType?DataType, bool Embedded)
{
BsonReaderBookmark Bookmark = Reader.GetBookmark();
BsonType? DataTypeBak = DataType;
if (!DataType.HasValue)
{
DataType = Reader.ReadBsonType();
}
switch (DataType.Value)
{
case BsonType.Document:
break;
case BsonType.Boolean:
return(Reader.ReadBoolean());
case BsonType.Int32:
return(Reader.ReadInt32());
case BsonType.Int64:
return(Reader.ReadInt64());
case BsonType.Decimal128:
return((decimal)Reader.ReadDecimal128());
case BsonType.Double:
return(Reader.ReadDouble());
case BsonType.DateTime:
return(ObjectSerializer.UnixEpoch.AddMilliseconds(Reader.ReadDateTime()));
case BsonType.String:
case BsonType.Symbol:
case BsonType.JavaScript:
case BsonType.JavaScriptWithScope:
return(Reader.ReadString());
case BsonType.Binary:
return(Reader.ReadBytes());
case BsonType.Null:
Reader.ReadNull();
return(null);
default:
throw new Exception("Object or value expected.");
}
LinkedList <KeyValuePair <string, object> > Properties = new LinkedList <KeyValuePair <string, object> >();
LinkedList <KeyValuePair <string, object> > LowerCase = null;
string TypeName = string.Empty;
Guid ObjectId = Guid.Empty;
string CollectionName = string.Empty;
string FieldName;
BsonType ValueType;
object Value;
Reader.ReadStartDocument();
while (Reader.State == BsonReaderState.Type)
{
ValueType = Reader.ReadBsonType();
if (ValueType == BsonType.EndOfDocument)
{
break;
}
FieldName = Reader.ReadName();
switch (ValueType)
{
case BsonType.Array:
Value = GeneratedObjectSerializerBase.ReadArray(null, this.Provider, Reader, ValueType);
break;
case BsonType.Binary:
Value = Reader.ReadBytes();
break;
case BsonType.Boolean:
Value = Reader.ReadBoolean();
break;
case BsonType.DateTime:
Value = ObjectSerializer.UnixEpoch.AddMilliseconds(Reader.ReadDateTime());
break;
case BsonType.Decimal128:
Value = (decimal)Reader.ReadDecimal128();
break;
case BsonType.Document:
Value = this.Deserialize(Reader, ValueType, true);
break;
case BsonType.Double:
Value = Reader.ReadDouble();
break;
case BsonType.Int32:
Value = Reader.ReadInt32();
break;
case BsonType.Int64:
Value = Reader.ReadInt64();
break;
case BsonType.JavaScript:
Value = Reader.ReadJavaScript();
break;
case BsonType.JavaScriptWithScope:
Value = Reader.ReadJavaScriptWithScope();
break;
case BsonType.Null:
Value = null;
Reader.ReadNull();
break;
case BsonType.ObjectId:
Value = Reader.ReadObjectId();
break;
case BsonType.String:
Value = Reader.ReadString();
break;
case BsonType.Symbol:
Value = Reader.ReadSymbol();
break;
default:
throw new Exception("Unrecognized data type: " + ValueType.ToString());
}
switch (FieldName)
{
case "_id":
if (Value is Guid Guid)
{
ObjectId = Guid;
}
else if (Value is string s)
{
ObjectId = new Guid(s);
}
else if (Value is byte[] A)
{
ObjectId = new Guid(A);
}
else if (Value is ObjectId ObjId)
{
ObjectId = GeneratedObjectSerializerBase.ObjectIdToGuid(ObjId);
}
else
{
throw new Exception("Unrecognized Object ID type: " + Value.GetType().FullName);
}
break;
case "_type":
TypeName = Value?.ToString();
if (this.returnTypedObjects && !string.IsNullOrEmpty(TypeName))
{
Type DesiredType = Types.GetType(TypeName);
if (DesiredType is null)
{
DesiredType = typeof(GenericObject);
}
if (DesiredType != typeof(GenericObject))
{
IObjectSerializer Serializer2 = this.provider.GetObjectSerializer(DesiredType);
Reader.ReturnToBookmark(Bookmark);
return(Serializer2.Deserialize(Reader, DataTypeBak, Embedded));
}
}
break;
case "_collection":
CollectionName = Value?.ToString();
break;
default:
if (FieldName.EndsWith("_L"))
{
string s = FieldName.Substring(0, FieldName.Length - 2);
bool Ignore = false;
foreach (KeyValuePair <string, object> P in Properties)
{
if (P.Key == s)
{
Ignore = true;
break;
}
}
if (!Ignore)
{
if (LowerCase is null)
{
LowerCase = new LinkedList <KeyValuePair <string, object> >();
}
LowerCase.AddLast(new KeyValuePair <string, object>(s, Value));
}
}
else
{
Properties.AddLast(new KeyValuePair <string, object>(FieldName, Value));
}
break;
}
}
if (!(LowerCase is null))
{
foreach (KeyValuePair <string, object> P in LowerCase)
{
bool Ignore = false;
foreach (KeyValuePair <string, object> P2 in Properties)
{
if (P2.Key == P.Key)
{
Ignore = true;
break;
}
}
if (!Ignore)
{
Properties.AddLast(new KeyValuePair <string, object>(P.Key + "_L", P.Value));
}
}
}
Reader.ReadEndDocument();
return(new GenericObject(CollectionName, TypeName, ObjectId, Properties));
}
/***************************************************/
private object DeserializeDiscriminatedValue(BsonDeserializationContext context, BsonDeserializationArgs args)
{
// First try to recover the object type
IBsonReader reader = context.Reader;
BsonReaderBookmark bookmark = reader.GetBookmark();
Type actualType = typeof(CustomObject);
try
{
actualType = _discriminatorConvention.GetActualType(reader, typeof(object));
}
catch
{
// This is were we can call the Version_Engine to return the new type string from the old one if exists
string recordedType = GetCurrentTypeValue(reader);
// If failed, return Custom object
context.Reader.ReturnToBookmark(bookmark);
Engine.Reflection.Compute.RecordWarning("The type " + recordedType + " is unknown -> data returned as custom objects.");
IBsonSerializer customSerializer = BsonSerializer.LookupSerializer(typeof(CustomObject));
return(customSerializer.Deserialize(context, args));
}
// Handle the special case where the type is object
if (actualType == typeof(object))
{
BsonType currentBsonType = reader.GetCurrentBsonType();
if (currentBsonType == BsonType.Document && context.DynamicDocumentSerializer != null)
{
return(context.DynamicDocumentSerializer.Deserialize(context, args));
}
reader.ReadStartDocument();
reader.ReadEndDocument();
return(new object());
}
// Handle the genral case of finding the correct deserialiser and calling it
IBsonSerializer bsonSerializer = BsonSerializer.LookupSerializer(actualType);
IBsonPolymorphicSerializer bsonPolymorphicSerializer = bsonSerializer as IBsonPolymorphicSerializer;
if (bsonPolymorphicSerializer != null && bsonPolymorphicSerializer.IsDiscriminatorCompatibleWithObjectSerializer)
{
bookmark = context.Reader.GetBookmark();
try
{
return(bsonSerializer.Deserialize(context, args));
}
catch
{
context.Reader.ReturnToBookmark(bookmark);
Engine.Reflection.Compute.RecordWarning("Cannot find a definition of type " + actualType.FullName + " that matches the object to deserialise -> data returned as custom objects.");
IBsonSerializer customSerializer = BsonSerializer.LookupSerializer(typeof(CustomObject));
CustomObject fallback = customSerializer.Deserialize(context, args) as CustomObject;
//This is where we will try to get the correct object type from the custom object using the versionning engine
// If failed, just return the custom object
return(fallback);
}
}
object result = null;
bool flag = false;
reader.ReadStartDocument();
while (reader.ReadBsonType() != 0)
{
string text = reader.ReadName();
if (text == _discriminatorConvention.ElementName)
{
reader.SkipValue();
}
else
{
if (!(text == "_v"))
{
throw new FormatException($"Unexpected element name: '{text}'.");
}
result = bsonSerializer.Deserialize(context);
flag = true;
}
}
reader.ReadEndDocument();
if (!flag)
{
throw new FormatException("_v element missing.");
}
return(result);
}
public void TestBookmark()
{
var json = "{ \"x\" : 1, \"y\" : 2 }";
using (_bsonReader = new JsonReader(json))
{
// do everything twice returning to bookmark in between
var bookmark = _bsonReader.GetBookmark();
Assert.Equal(BsonType.Document, _bsonReader.ReadBsonType());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(BsonType.Document, _bsonReader.ReadBsonType());
bookmark = _bsonReader.GetBookmark();
_bsonReader.ReadStartDocument();
_bsonReader.ReturnToBookmark(bookmark);
_bsonReader.ReadStartDocument();
bookmark = _bsonReader.GetBookmark();
Assert.Equal(BsonType.Int32, _bsonReader.ReadBsonType());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(BsonType.Int32, _bsonReader.ReadBsonType());
bookmark = _bsonReader.GetBookmark();
Assert.Equal("x", _bsonReader.ReadName());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal("x", _bsonReader.ReadName());
bookmark = _bsonReader.GetBookmark();
Assert.Equal(1, _bsonReader.ReadInt32());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(1, _bsonReader.ReadInt32());
bookmark = _bsonReader.GetBookmark();
Assert.Equal(BsonType.Int32, _bsonReader.ReadBsonType());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(BsonType.Int32, _bsonReader.ReadBsonType());
bookmark = _bsonReader.GetBookmark();
Assert.Equal("y", _bsonReader.ReadName());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal("y", _bsonReader.ReadName());
bookmark = _bsonReader.GetBookmark();
Assert.Equal(2, _bsonReader.ReadInt32());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(2, _bsonReader.ReadInt32());
bookmark = _bsonReader.GetBookmark();
Assert.Equal(BsonType.EndOfDocument, _bsonReader.ReadBsonType());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(BsonType.EndOfDocument, _bsonReader.ReadBsonType());
bookmark = _bsonReader.GetBookmark();
_bsonReader.ReadEndDocument();
_bsonReader.ReturnToBookmark(bookmark);
_bsonReader.ReadEndDocument();
Assert.Equal(BsonReaderState.Initial, _bsonReader.State);
}
Assert.Equal(json, BsonSerializer.Deserialize <BsonDocument>(json).ToJson());
}
/***************************************************/
private object DeserializeDiscriminatedValue(BsonDeserializationContext context, BsonDeserializationArgs args)
{
// First try to recover the object type
IBsonReader reader = context.Reader;
BsonReaderBookmark bookmark = reader.GetBookmark();
Type actualType = typeof(CustomObject);
try
{
actualType = _discriminatorConvention.GetActualType(reader, typeof(object));
}
catch
{
try
{
context.Reader.ReturnToBookmark(bookmark);
DeprecatedSerializer deprecatedSerialiser = new DeprecatedSerializer();
return(deprecatedSerialiser.Deserialize(context, args));
}
catch { }
}
context.Reader.ReturnToBookmark(bookmark);
if (actualType == null)
{
return(null);
}
// Handle the special case where the type is object
if (actualType == typeof(object))
{
BsonType currentBsonType = reader.GetCurrentBsonType();
if (currentBsonType == BsonType.Document && context.DynamicDocumentSerializer != null)
{
return(context.DynamicDocumentSerializer.Deserialize(context, args));
}
reader.ReadStartDocument();
reader.ReadEndDocument();
return(new object());
}
// Handle the general case of finding the correct deserialiser and calling it
try
{
if (!BsonClassMap.IsClassMapRegistered(actualType))
{
Compute.RegisterClassMap(actualType); // LookupSerializer creates the classMap if it doesn't exist so important to do it through our own method
}
IBsonSerializer bsonSerializer = BsonSerializer.LookupSerializer(actualType);
if (bsonSerializer.GetType().Name == "EnumerableInterfaceImplementerSerializer`2" && context.Reader.CurrentBsonType == BsonType.Document)
{
if (!m_FallbackSerialisers.ContainsKey(actualType))
{
CreateFallbackSerialiser(actualType);
}
bsonSerializer = m_FallbackSerialisers[actualType];
}
else if (actualType.Name == "Dictionary`2" && context.Reader.CurrentBsonType == BsonType.Document)
{
DictionarySerializer dicSerialiser = new DictionarySerializer();
return(dicSerialiser.Deserialize(context, args));
}
return(bsonSerializer.Deserialize(context, args));
}
catch (Exception e)
{
if (e.Message.Contains("Could not load file or assembly"))
{
Engine.Reflection.Compute.RecordError(e.Message);
}
context.Reader.ReturnToBookmark(bookmark);
DeprecatedSerializer deprecatedSerialiser = new DeprecatedSerializer();
return(deprecatedSerialiser.Deserialize(context, args));
}
}
/// <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);
}
/***************************************************/
private object DeserializeDiscriminatedValue(BsonDeserializationContext context, BsonDeserializationArgs args)
{
// First try to recover the object type
IBsonReader reader = context.Reader;
BsonReaderBookmark bookmark = reader.GetBookmark();
Type actualType = typeof(CustomObject);
try
{
actualType = _discriminatorConvention.GetActualType(reader, typeof(object));
}
catch (Exception e)
{
BsonDocument doc = null;
try
{
context.Reader.ReturnToBookmark(bookmark);
IBsonSerializer bSerializer = BsonSerializer.LookupSerializer(typeof(BsonDocument));
doc = bSerializer.Deserialize(context, args) as BsonDocument;
}
catch { }
if (doc != null && doc.Contains("_t") && doc["_t"].AsString == "DBNull")
{
return(null);
}
else
{
actualType = typeof(IDeprecated);
}
}
context.Reader.ReturnToBookmark(bookmark);
if (actualType == null)
{
return(null);
}
// Make sure the type is not deprecated
if (Config.AllowUpgradeFromBson && actualType.IIsDeprecated() && !Config.TypesWithoutUpgrade.Contains(actualType))
{
actualType = typeof(IDeprecated);
}
// Handle the special case where the type is object
if (actualType == typeof(object))
{
BsonType currentBsonType = reader.GetCurrentBsonType();
if (currentBsonType == BsonType.Document && context.DynamicDocumentSerializer != null)
{
return(context.DynamicDocumentSerializer.Deserialize(context, args));
}
reader.ReadStartDocument();
reader.ReadEndDocument();
return(new object());
}
// Handle the general case of finding the correct deserialiser and calling it
try
{
IBsonSerializer bsonSerializer = BsonSerializer.LookupSerializer(actualType);
if (bsonSerializer.GetType().Name == "EnumerableInterfaceImplementerSerializer`2" && context.Reader.CurrentBsonType == BsonType.Document)
{
if (!m_FallbackSerialisers.ContainsKey(actualType))
{
CreateFallbackSerialiser(actualType);
}
bsonSerializer = m_FallbackSerialisers[actualType];
}
return(bsonSerializer.Deserialize(context, args));
}
catch (Exception e)
{
context.Reader.ReturnToBookmark(bookmark);
if (e is FormatException && e.InnerException != null && (e.InnerException is FormatException || e.InnerException is BsonSerializationException))
{
// A child of the object is causing problems. Try to recover from custom object
IBsonSerializer customSerializer = BsonSerializer.LookupSerializer(typeof(CustomObject));
object result = customSerializer.Deserialize(context, args);
Guid objectId = ((CustomObject)result).BHoM_Guid;
if (!Config.TypesWithoutUpgrade.Contains(actualType))
{
if (m_StackCounter.ContainsKey(objectId))
{
m_StackCounter[objectId] += 1;
}
else
{
m_StackCounter[objectId] = 1;
}
if (m_StackCounter[objectId] < 10)
{
result = Convert.FromBson(result.ToBson());
m_StackCounter.Remove(objectId);
}
}
if (result is CustomObject)
{
Engine.Reflection.Compute.RecordWarning("The type " + actualType.FullName + " is unknown -> data returned as custom objects.");
Config.TypesWithoutUpgrade.Add(actualType);
}
return(result);
}
else if (actualType != typeof(IDeprecated))
{
// Try the deprecated object serialiser
IBsonSerializer deprecatedSerializer = BsonSerializer.LookupSerializer(typeof(IDeprecated));
return(deprecatedSerializer.Deserialize(context, args));
}
else
{
// Last resort: just return the custom object
Engine.Reflection.Compute.RecordWarning("The type " + actualType.FullName + " is unknown -> data returned as custom objects.");
IBsonSerializer customSerializer = BsonSerializer.LookupSerializer(typeof(CustomObject));
return(customSerializer.Deserialize(context, args));
}
}
}
public void TestBookmark()
{
var json = "{ \"x\" : 1, \"y\" : 2 }";
using (_bsonReader = new JsonReader(json))
{
// do everything twice returning to bookmark in between
var bookmark = _bsonReader.GetBookmark();
Assert.Equal(BsonType.Document, _bsonReader.ReadBsonType());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(BsonType.Document, _bsonReader.ReadBsonType());
bookmark = _bsonReader.GetBookmark();
_bsonReader.ReadStartDocument();
_bsonReader.ReturnToBookmark(bookmark);
_bsonReader.ReadStartDocument();
bookmark = _bsonReader.GetBookmark();
Assert.Equal(BsonType.Int32, _bsonReader.ReadBsonType());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(BsonType.Int32, _bsonReader.ReadBsonType());
bookmark = _bsonReader.GetBookmark();
Assert.Equal("x", _bsonReader.ReadName());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal("x", _bsonReader.ReadName());
bookmark = _bsonReader.GetBookmark();
Assert.Equal(1, _bsonReader.ReadInt32());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(1, _bsonReader.ReadInt32());
bookmark = _bsonReader.GetBookmark();
Assert.Equal(BsonType.Int32, _bsonReader.ReadBsonType());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(BsonType.Int32, _bsonReader.ReadBsonType());
bookmark = _bsonReader.GetBookmark();
Assert.Equal("y", _bsonReader.ReadName());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal("y", _bsonReader.ReadName());
bookmark = _bsonReader.GetBookmark();
Assert.Equal(2, _bsonReader.ReadInt32());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(2, _bsonReader.ReadInt32());
bookmark = _bsonReader.GetBookmark();
Assert.Equal(BsonType.EndOfDocument, _bsonReader.ReadBsonType());
_bsonReader.ReturnToBookmark(bookmark);
Assert.Equal(BsonType.EndOfDocument, _bsonReader.ReadBsonType());
bookmark = _bsonReader.GetBookmark();
_bsonReader.ReadEndDocument();
_bsonReader.ReturnToBookmark(bookmark);
_bsonReader.ReadEndDocument();
Assert.Equal(BsonReaderState.Initial, _bsonReader.State);
}
Assert.Equal(json, BsonSerializer.Deserialize<BsonDocument>(json).ToJson());
}
// 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);
}
