private void DeserializeExtraElement(
BsonReader bsonReader,
object obj,
string elementName,
BsonMemberMap extraElementsMemberMap)
{
if (extraElementsMemberMap.MemberType == typeof(BsonDocument))
{
var extraElements = (BsonDocument)extraElementsMemberMap.Getter(obj);
if (extraElements == null)
{
extraElements = new BsonDocument();
extraElementsMemberMap.Setter(obj, extraElements);
}
var bsonValue = (BsonValue)BsonValueSerializer.Instance.Deserialize(bsonReader, typeof(BsonValue), null);
extraElements[elementName] = bsonValue;
}
else
{
var extraElements = (IDictionary <string, object>)extraElementsMemberMap.Getter(obj);
if (extraElements == null)
{
if (extraElementsMemberMap.MemberType == typeof(IDictionary <string, object>))
{
extraElements = new Dictionary <string, object>();
}
else
{
extraElements = (IDictionary <string, object>)Activator.CreateInstance(extraElementsMemberMap.MemberType);
}
extraElementsMemberMap.Setter(obj, extraElements);
}
var bsonValue = (BsonValue)BsonValueSerializer.Instance.Deserialize(bsonReader, typeof(BsonValue), null);
extraElements[elementName] = BsonTypeMapper.MapToDotNetValue(bsonValue);
}
}
private void DeserializeMember(BsonReader bsonReader, object obj, BsonMemberMap memberMap)
{
try
{
object value;
var nominalType = memberMap.MemberType;
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Null && nominalType.IsInterface)
{
bsonReader.ReadNull();
value = null;
}
else
{
Type actualType;
if (bsonType == BsonType.Null)
{
actualType = nominalType;
}
else
{
var discriminatorConvention = memberMap.GetDiscriminatorConvention();
actualType = discriminatorConvention.GetActualType(bsonReader, nominalType); // returns nominalType if no discriminator found
}
var serializer = memberMap.GetSerializer(actualType);
value = serializer.Deserialize(bsonReader, nominalType, actualType, memberMap.SerializationOptions);
}
memberMap.Setter(obj, value);
}
catch (Exception ex)
{
var message = string.Format(
"An error occurred while deserializing the {0} {1} of class {2}: {3}", // terminating period provided by nested message
memberMap.MemberName, (memberMap.MemberInfo.MemberType == MemberTypes.Field) ? "field" : "property", obj.GetType().FullName, ex.Message);
throw new FileFormatException(message, ex);
}
}
private void DeserializeExtraElement(
BsonReader bsonReader,
object obj,
string elementName,
BsonMemberMap extraElementsMemberMap)
{
if (extraElementsMemberMap.MemberType == typeof(BsonDocument))
{
var extraElements = (BsonDocument)extraElementsMemberMap.Getter(obj);
if (extraElements == null)
{
extraElements = new BsonDocument();
extraElementsMemberMap.Setter(obj, extraElements);
}
var bsonValue = (BsonValue)BsonValueSerializer.Instance.Deserialize(bsonReader, typeof(BsonValue), null);
extraElements[elementName] = bsonValue;
}
else
{
var extraElements = (IDictionary<string, object>)extraElementsMemberMap.Getter(obj);
if (extraElements == null)
{
if (extraElementsMemberMap.MemberType == typeof(IDictionary<string, object>))
{
extraElements = new Dictionary<string, object>();
}
else
{
extraElements = (IDictionary<string, object>)Activator.CreateInstance(extraElementsMemberMap.MemberType);
}
extraElementsMemberMap.Setter(obj, extraElements);
}
var bsonValue = (BsonValue)BsonValueSerializer.Instance.Deserialize(bsonReader, typeof(BsonValue), null);
extraElements[elementName] = BsonTypeMapper.MapToDotNetValue(bsonValue);
}
}
private void DeserializeMember(BsonReader bsonReader, object obj, BsonMemberMap memberMap)
{
try
{
object value;
var nominalType = memberMap.MemberType;
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Null && nominalType.IsInterface)
{
bsonReader.ReadNull();
value = null;
}
else{
Type actualType;
if (bsonType == BsonType.Null)
{
actualType = nominalType;
}
else
{
var discriminatorConvention = memberMap.GetDiscriminatorConvention();
actualType = discriminatorConvention.GetActualType(bsonReader, nominalType); // returns nominalType if no discriminator found
}
var serializer = memberMap.GetSerializer(actualType);
value = serializer.Deserialize(bsonReader, nominalType, actualType, memberMap.SerializationOptions);
}
memberMap.Setter(obj, value);
}
catch (Exception ex)
{
var message = string.Format(
"An error occurred while deserializing the {0} {1} of class {2}: {3}", // terminating period provided by nested message
memberMap.MemberName, (memberMap.MemberInfo.MemberType == MemberTypes.Field) ? "field" : "property", obj.GetType().FullName, ex.Message);
throw new FileFormatException(message, ex);
}
}