Replacement of BsonBaseSerializer in MongoDB driver v2.4.0 - mongodb

Question

We have migrated MongoDB drivers from v1.9.3 to v2.4.0. we have used BsonBaseSerializer, which does not exists in v2.4.0. what is the replacement of BsonBaseSerializer in v2.4.0?

Answer 1

There's not really enough of a question to give a full answer to, but the change you're looking for is documented under serialization in the mongo docs.
http://mongodb.github.io/mongo-csharp-driver/2.4/reference/bson/serialization/#implementation-1
The biggest change being that they take a type now on the base class.
So
V1 Driver code
public class IntegerCoercion : BsonBaseSerializer
{
public override object Deserialize(BsonReader bsonReader, Type nominalType, Type actualType, IBsonSerializationOptions options)
{
if (bsonReader.CurrentBsonType == BsonType.Int32)
{
return bsonReader.ReadInt32();
}
if (bsonReader.CurrentBsonType == BsonType.String)
{
var value = bsonReader.ReadString();
if (string.IsNullOrWhiteSpace(value))
{
return null;
}
return Convert.ToInt32(value);
}
bsonReader.SkipValue();
return null;
}
public override void Serialize(BsonWriter bsonWriter, Type nominalType, object value, IBsonSerializationOptions options)
{
if (value == null)
{
bsonWriter.WriteNull();
return;
}
bsonWriter.WriteInt32(Convert.ToInt32(value));
}
}
V2 Driver Code
public class IntegerCoercion : SerializerBase<object>
{
public override object Deserialize(BsonDeserializationContext context, BsonDeserializationArgs args)
{
if (context.Reader.CurrentBsonType == BsonType.Int32)
{
return context.Reader.ReadInt32();
}
if (context.Reader.CurrentBsonType == BsonType.String)
{
var value = context.Reader.ReadString();
if (string.IsNullOrWhiteSpace(value))
{
return null;
}
return Convert.ToInt32(value);
}
context.Reader.SkipValue();
return null;
}
public override void Serialize(BsonSerializationContext context, BsonSerializationArgs args, object value)
{
if (value == null)
{
context.Writer.WriteNull();
return;
}
context.Writer.WriteInt32(Convert.ToInt32(value));
}
}
Not a huge difference but as with most of the driver changes they're minimal but breaking.