Binboo.Jira.Configuration.JiraConfig.UserNameForAlias C# (CSharp) Method

        private string UserNameForAlias(string userName)
        {
            XmlNodeList users = _coreConfig.FindConfigItems("jira", String.Format("{0}[translate(@{1},'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz') = '{2}']", UserNodeMappingXPath, AliasAttributeName, userName.ToLower()));
            if (users.Count == 0) return userName;

            return users[0].Attributes[UserNameAttributeName].Value;
        }