private bool Run()
{
var workflowInstances = TheWorkflowInstanceRepository.List();
var actions = 0;
foreach (var workflowInstance in workflowInstances)
{
var hydratedInstance = TheWorkflowInstanceRepository.RestoreState(workflowInstance);
if (hydratedInstance.Ended)
{
Log.Debug(string.Format("Ending workflow '{0}' and removing from runtime.", hydratedInstance.Id.ToString(CultureInfo.InvariantCulture)));
TheWorkflowInstanceRepository.Delete(hydratedInstance);
}
var task = hydratedInstance.CurrentTask;
if (task == null)
{
continue;
}
Log.Debug(string.Format("Checking task '{0}' for runnable", task.Name));
if (task is IRunnableWorkflowTask)
{
try
{
((IRunnableWorkflowTask)task).Run(hydratedInstance, this);
actions++;
}
catch (System.Exception ex)
{
Log.Error("An error occured during a runnable task (workflow will terminate) - " + task.GetType().FullName, ex);
Log.Error(ex.StackTrace);
EndWorkflow(hydratedInstance);
TheWorkflowInstanceRepository.Update(hydratedInstance);
actions++;
}
}
else if (task is IDelayWorkflowTask)
{
if (((IDelayWorkflowTask)task).IsComplete())
{
Log.Debug("Delay task completed");
Transition(hydratedInstance, task, task.AvailableTransitions[0]);
actions++;
}
}
else if (task is EndWorkflowTask || typeof(EndWorkflowTask) == task.GetType())
{
Log.Debug(string.Format("Workflow {0} will end as it entered an end task", hydratedInstance.Id));
EndWorkflow(hydratedInstance);
TheWorkflowInstanceRepository.Update(hydratedInstance);
actions++;
}
}
return(actions > 0);
}
public void DeleteWorkflowInstance(int workflowInstanceId)
{
var workflowInstance = TheWorkflowInstanceRepository.GetById(workflowInstanceId);
TheWorkflowInstanceRepository.Delete(workflowInstance);
}