TransactionalNodeService.Common.SearchedNode.AddMetadataRecord C# (CSharp) Method

        public void AddMetadataRecord(IDataReader record)
        {
            if (record["NodeUid"] != null && record["NodeUid"] != DBNull.Value)
            {
                DateTime? metadataCreated = null;
                DateTime? metadataModified = null;
                string metadataCreatedBy = null;
                string metadataModifiedBy = null;
                string metadataCreatedByLogin = null;
                string metadataModifiedByLogin = null;

                if (record["Created"] != null && record["Created"] != DBNull.Value)
                {
                    metadataCreated = (DateTime)record["Created"];
                }

                if (record["Modified"] != null && record["Modified"] != DBNull.Value)
                {
                    metadataModified = (DateTime)record["Modified"];
                }

                if (Created > metadataCreated)
                {
                    if (record["CreatedBy"] != null && record["CreatedBy"] != DBNull.Value)
                    {
                        metadataCreatedByLogin = (string)record["CreatedBy"];

                        //metadataCreatedBy = mapObjects.FindUsersName(metadataCreatedByLogin);
                        metadataCreatedBy = metadataCreatedByLogin;
                    }

                    if (!string.IsNullOrEmpty(metadataCreatedByLogin))
                    {
                        Created = metadataCreated;
                        CreatedBy = metadataCreatedBy;
                        CreatedByLogin = metadataCreatedByLogin;
                    }
                }

                if (Modified < metadataModified)
                {
                    if (record["ModifiedBy"] != null && record["ModifiedBy"] != DBNull.Value)
                    {
                        metadataModifiedByLogin = (string)record["ModifiedBy"];

                        //metadataModifiedBy = mapObjects.FindUsersName(metadataModifiedByLogin);
                        metadataModifiedBy = metadataModifiedByLogin;
                    }

                    if (!string.IsNullOrEmpty(metadataModifiedByLogin))
                    {
                        Modified = metadataModified;
                        ModifiedBy = metadataModifiedBy;
                        ModifiedByLogin = metadataModifiedByLogin;
                    }
                }

                if (record["MetadataName"] != null && record["MetadataName"] != DBNull.Value)
                {
                    string metadataName = (string)record["MetadataName"];

                    if (record["MetadataValue"] != null & record["MetadataValue"] != DBNull.Value)
                    {
                        string metadataValue = (string)record["MetadataValue"];

                        Metadata[metadataName] = metadataValue;
                    }
                    else
                    {
                        Metadata[metadataName] = null;
                    }
                }
            }
        }
    }