예제 #1
0
        /// <summary>
        /// Initializes the task manager with the property values specified in the configuration file.
        /// </summary>
        public void Initialize()
        {
            this._taskThreads.Clear();

            var taskService = EngineContext.Current.Resolve<IScheduleTaskService>();
            var scheduleTasks = taskService
                .GetAllTasks()
                .OrderBy(x => x.Seconds)
                .ToList();

            //group by threads with the same seconds
            foreach (var scheduleTaskGrouped in scheduleTasks.GroupBy(x => x.Seconds))
            {
                //create a thread
                var taskThread = new TaskThread
                                     {
                                         Seconds = scheduleTaskGrouped.Key
                                     };
                foreach (var scheduleTask in scheduleTaskGrouped)
                {
                    var task = new Task(scheduleTask);
                    taskThread.AddTask(task);
                }
                this._taskThreads.Add(taskThread);
            }

            //sometimes a task period could be set to several hours (or even days).
            //in this case a probability that it'll be run is quite small (an application could be restarted)
            //we should manually run the tasks which weren't run for a long time
            var notRunTasks = scheduleTasks
                //find tasks with "run period" more than 30 minutes
                .Where(x => x.Seconds >= _notRunTasksInterval)
                .Where(x => !x.LastStartUtc.HasValue || x.LastStartUtc.Value.AddSeconds(x.Seconds) < DateTime.UtcNow)
                .ToList();
            //create a thread for the tasks which weren't run for a long time
            if (notRunTasks.Count > 0)
            {
                var taskThread = new TaskThread
                {
                    RunOnlyOnce = true,
                    Seconds = 60 * 5 //let's run such tasks in 5 minutes after application start
                };
                foreach (var scheduleTask in notRunTasks)
                {
                    var task = new Task(scheduleTask);
                    taskThread.AddTask(task);
                }
                this._taskThreads.Add(taskThread);
            }
        }
예제 #2
0
        public ActionResult RunNow(int id) {
            if (!_permissionService.Authorize(StandardPermissionProvider.ManageScheduleTasks))
                return AccessDeniedView();

            try {
                var scheduleTask = _scheduleTaskService.GetTaskById(id);
                if (scheduleTask == null)
                    throw new Exception("Schedule task cannot be loaded");

                var task = new Task(scheduleTask);
                //ensure that the task is enabled
                task.Enabled = true;
                //do not dispose. otherwise, we can get exception that DbContext is disposed
                task.Execute(true, false);
                SuccessNotification(_localizationService.GetResource("Admin.System.ScheduleTasks.RunNow.Done"));
            } catch (Exception exc) {
                ErrorNotification(exc);
            }

            return RedirectToAction("List");
        }