private LicenseUser CreateLicense(ConnectionInfo connectionInfo, int LicenseType)
        {
            LicenseUser newLicense = new LicenseUser();

            logWrite(connectionInfo.ConnectionId,"라이센스 타입 : " + LicenseType + "라이센스 생성 중..");

            try
            {
                using (var db = new LicensingEntities())
                {
                    newLicense = new LicenseUser()
                    {
                        ID = Guid.NewGuid(),
                        Company = connectionInfo.Company,
                        ProjectType = connectionInfo.ProjectType,
                        UserName = connectionInfo.UserName,
                        LicenseType = LicenseType,
                        StartDateTime = connectionInfo.CurrentDateTime,
                        EndDateTime = connectionInfo.CurrentDateTime.AddMinutes(LicenseType)
                    };

                    db.LicenseUser.Add(newLicense);
                    db.SaveChanges();
                   
                }
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex);
                newLicense = null;
            }

            return newLicense;
        }
        private void SetConnection(ConnectionInfo connectionInfo, LicenseUser licenseUser)
        {
            using (var db = new LicensingEntities())
            {
                Guid ConnectionID = Guid.Parse(connectionInfo.ConnectionId);

                var users = db.User.Where(f => f.UserName == connectionInfo.UserName);

                if (users.Count() == 0)
                {
                    int Isrole;

                    if(!int.TryParse(connectionInfo.Role, out Isrole))
                    {
                        Isrole = 1;
                    }

                    var user = new User
                    {
                        ID = Guid.NewGuid(),
                        UserName = connectionInfo.UserName,
                        Company = connectionInfo.Company,
                        ProjectType = connectionInfo.ProjectType,
                        Role = Isrole,
                        LastActivity = connectionInfo.CurrentDateTime
                    };

                    db.User.Add(user);
                }
                else
                {
                    var user = users.First();
                    user.LastActivity = DateTime.UtcNow;
                }

                db.SaveChanges();

                var _connections = db.Connection.Where(con => con.ConnectionID == ConnectionID);

                if (_connections.Count() == 0)
                {
                    CreateConnection(connectionInfo);
                }

                Clients.Client(connectionInfo.ConnectionId).licenseExpired(licenseUser.EndDateTime);
            }
        }