MongoDB.Bson.Serialization.Serializers.IPEndPointSerializer.Deserialize C# (CSharp) Метод

        public override object Deserialize(
            BsonReader bsonReader,
            Type nominalType,
            Type actualType,
            IBsonSerializationOptions options)
        {
            VerifyTypes(nominalType, actualType, typeof(IPEndPoint));

            BsonType bsonType = bsonReader.GetCurrentBsonType();
            string message;
            switch (bsonType)
            {
                case BsonType.Null:
                    bsonReader.ReadNull();
                    return null;
                case BsonType.String:
                    var stringValue = bsonReader.ReadString();
                    var match = Regex.Match(stringValue, @"^(?<address>(.+|\[.*\]))\:(?<port>\d+)$");
                    if (match.Success)
                    {
                        IPAddress address;
                        if (IPAddress.TryParse(match.Groups["address"].Value, out address))
                        {
                            int port;
                            if (int.TryParse(match.Groups["port"].Value, out port))
                            {
                                return new IPEndPoint(address, port);
                            }
                        }
                    }
                    message = string.Format("Invalid IPEndPoint value '{0}'.", stringValue);
                    throw new Exception(message);
                default:
                    message = string.Format("Cannot deserialize IPEndPoint from BsonType {0}.", bsonType);
                    throw new Exception(message);
            }
        }