public void StartTask()
{
if (this.taskGuid == Guid.Empty)
{
return;
}
TaskQueue task = new TaskQueue(this.taskGuid);
if (task.Guid == Guid.Empty)
{
return; // task not found
}
if (!ThreadPool.QueueUserWorkItem(new WaitCallback(RunTaskOnNewTopic), this))
{
throw new Exception("Couldn't queue the task on a new topic.");
}
task.Status = "Started";
task.StartUTC = DateTime.UtcNow;
task.LastStatusUpdateUTC = DateTime.UtcNow;
task.Save();
log.Info("Queued TopicSleepTask on a new topic");
}
public void QueueTask()
{
if (this.siteGuid == Guid.Empty)
{
return;
}
if (this.taskGuid != Guid.Empty)
{
return;
}
TaskQueue task = new TaskQueue();
task.SiteGuid = this.siteGuid;
task.QueuedBy = this.queuedBy;
task.TaskName = this.taskName;
task.NotifyOnCompletion = this.notifyOnCompletion;
task.NotificationToEmail = this.notificationToEmail;
task.NotificationFromEmail = this.notificationFromEmail;
task.NotificationSubject = this.notificationSubject;
task.TaskCompleteMessage = this.taskCompleteMessage;
task.CanResume = this.canResume;
task.CanStop = this.canStop;
task.UpdateFrequency = this.updateFrequency;
task.Status = "Queued";
task.LastStatusUpdateUTC = DateTime.UtcNow;
this.taskGuid = task.NewGuid;
task.SerializedTaskObject = SerializationHelper.SerializeToString(this);
task.SerializedTaskType = this.GetType().AssemblyQualifiedName;
task.Save();
}
private void RunTask()
{
startTime = DateTime.UtcNow;
endTime = startTime.AddMinutes(maxRunTimeMinutes);
timeToRun = endTime.Subtract(startTime);
while (DateTime.UtcNow < endTime)
{
countOfIterations += 1;
DoReporting();
DoSleeping();
}
TaskQueue task = new TaskQueue(this.taskGuid);
task.Status = "Finished";
task.CompleteRatio = 1;
task.LastStatusUpdateUTC = DateTime.UtcNow;
task.CompleteUTC = DateTime.UtcNow;
task.Save();
}
private void DoReporting()
{
if (this.taskGuid == Guid.Empty)
{
return;
}
TaskQueue task = new TaskQueue(this.taskGuid);
task.Status = "Running " + countOfIterations.ToString(CultureInfo.InvariantCulture);
if ((timeToRun != null) && (timeToRun.TotalSeconds > 0))
{
TimeSpan timeLeft = endTime.Subtract(DateTime.UtcNow);
task.CompleteRatio = ((timeToRun.TotalSeconds - timeLeft.TotalSeconds) / timeToRun.TotalSeconds);
}
task.LastStatusUpdateUTC = DateTime.UtcNow;
task.Save();
log.Info("Task " + task.TaskName
+ " completed iteration "
+ countOfIterations.ToString(CultureInfo.InvariantCulture));
}
