BLL.Workflows.Multicast.Create C# (CSharp) Метод

        public string Create()
        {
            _imageProfile = ImageProfile.ReadProfile(_group.ImageProfileId);
            if (_imageProfile == null) return "The Image Profile Does Not Exist";

            if (_imageProfile.Image == null) return "The Image Does Not Exist";

            var validation = Image.CheckApprovalAndChecksum(_imageProfile.Image,_userId);
            if (!validation.IsValid) return validation.Message;

            _multicastSession.Port = Port.GetNextPort();
            if (_multicastSession.Port == 0)
            {
                return "Could Not Determine Current Port Base";
            }

            var dp = BLL.DistributionPoint.GetPrimaryDistributionPoint();
            if (dp == null) return "Could Not Find A Primary Distribution Point";

            _multicastSession.UserId = _userId;
            //End of the road for starting an on demand multicast
            if (_isOnDemand)
            {
                _multicastSession.Name = _group.Name;
                _group.Name =_multicastSession.Port.ToString();
                if (!StartMulticastSender())
                    return "Could Not Start The Multicast Application";
                else
                    return "Successfully Started Multicast " + _group.Name;
            }

            //Continue On If multicast is for a group
            _multicastSession.Name = _group.Name;
            _computers = Group.GetGroupMembers(_group.Id);
            if (_computers.Count < 1)
            {
                return "The group Does Not Have Any Members";
            }

            if (!ActiveMulticastSession.AddActiveMulticastSession(_multicastSession))
            {
                return "Could Not Create Multicast Database Task.  An Existing Task May Be Running.";
            }

            if (!CreateComputerTasks())
            {
                ActiveMulticastSession.Delete(_multicastSession.Id);
                return "Could Not Create Computer Database Tasks.  A Computer May Have An Existing Task.";
            }

            if (!CreatePxeFiles())
            {
                ActiveMulticastSession.Delete(_multicastSession.Id);
                return "Could Not Create Computer Boot Files";
            }

            if (!CreateTaskArguments())
            {
                ActiveMulticastSession.Delete(_multicastSession.Id);
                return "Could Not Create Computer Task Arguments";
            }

            if (!StartMulticastSender())
            {
                ActiveMulticastSession.Delete(_multicastSession.Id);
                return "Could Not Start The Multicast Application";
            }

            foreach (var computer in _computers)
                Utility.WakeUp(computer.Mac);

            return "Successfully Started Multicast " + _group.Name;
        }