gov.va.medora.mdo.dao.vista.VistaUserDao.addVisitorInfo C# (CSharp) Method

        public void addVisitorInfo(AbstractCredentials credentials)
        {
            string DUZ = credentials.LocalUid;

            string arg = "$P($G(^VA(200," + DUZ + ",0)),\"^\",1)";          //NAME
            arg += "_\"^\"_" + "$P($G(^VA(200," + DUZ + ",1)),\"^\",9)";
            arg += "_\"^\"_" + "$P($G(^VA(200," + DUZ + ",.13)),\"^\",2)";  //OFFICE PHONE
            string response = "";
            try
            {
                response = VistaUtils.getVariableValue(cxn, arg);
            }
            catch (Exception e)
            {
                if (e.Message.Contains("M  ERROR"))
                {
                    throw new ArgumentException("No such DUZ");
                }
                else
                {
                    throw e;
                }
            }
            if (response == "")
            {
                return;
            }
            string[] flds = StringUtils.split(response, StringUtils.CARET);
            credentials.FederatedUid = flds[1];
            credentials.SubjectName = flds[0];
            credentials.SubjectPhone = flds[2];
            credentials.AuthenticationSource.SiteId.Id = cxn.DataSource.SiteId.Id;
            credentials.AuthenticationSource.SiteId.Name = cxn.DataSource.SiteId.Name;
        }

 internal void doTheAuthorize(AbstractCredentials credentials, AbstractPermission permission)
 {
     //// if we are requesting CPRS context with a visit and user does not have it - add it to their account
     if (permission.Name == VistaConstants.CPRS_CONTEXT &&
         !Cxn.Account.Permissions.ContainsKey(VistaConstants.CPRS_CONTEXT) &&
         !Cxn.Account.AuthenticationMethod.Equals(VistaConstants.LOGIN_CREDENTIALS))
     {
         addContextInVista(Cxn.Uid, permission);
     }
     else
     {
         setContext(permission);
     }
     if (String.IsNullOrEmpty(Cxn.Uid))
     {
         if (String.IsNullOrEmpty(credentials.FederatedUid))
         {
             throw new MdoException("Missing federated UID, cannot get local UID");
         }
         VistaUserDao dao = new VistaUserDao(Cxn);
         Cxn.Uid = dao.getUserIdBySsn(credentials.FederatedUid);
         if (String.IsNullOrEmpty(Cxn.Uid))
         {
             throw new MdoException("Unable to get local UID for federated ID " + credentials.FederatedUid);
         }
     }
     if (!credentials.Complete)
     {
         VistaUserDao dao = new VistaUserDao(Cxn);
         dao.addVisitorInfo(credentials);
     }
 }