public void Start(IBackgroundTasksManager manager, TimeSpan interval, Int32 count, String parameter, Boolean batch, Int32?priority)
{
if (interval == TimeSpan.Zero)
{
return; // interval not specified, do not run
}
if (count == 0)
{
return; // not specified quantity, do not run
}
manager.ScheduleBackgroundTask(
() =>
{
ProcessPendings(count, manager, parameter);
},
interval,
DateTime.UtcNow + TimeSpan.FromSeconds(5) /* let everything start in 5 seconds */
);
}
void ProcessPendings(Int32 wakeupCount, IBackgroundTasksManager manager, String parameter)
{
IList <PendingWorkflow> list = null;
try
{
manager.Logger.LogBackground("Loading pending workflows");
var prms = new ExpandoObject();
prms.Set("Count", wakeupCount);
if (parameter != null)
{
prms.Set("Parameter", parameter);
}
list = manager.DbContext.LoadList <PendingWorkflow>(String.Empty, "a2workflow.[Process.Pendings]", prms);
if (list == null)
{
return;
}
}
catch (Exception ex)
{
String msg = ex.Message;
if (ex.InnerException != null)
{
msg = ex.InnerException.Message;
}
manager.Logger.LogBackgroundError(msg);
}
if (list.Count <= 0)
{
return;
}
manager.Logger.LogBackground($"{list.Count} item(s) loaded");
try
{
foreach (var pw in list)
{
// local data needed
var wfId = pw.WorkflowId;
var pId = pw.ProcessId;
var wfAuto = pw.AutoStart;
manager.ScheduleBackgroundTask(() =>
{
if (wfAuto)
{
manager.Logger.LogBackground($"Autostarting process. ProcessId = {pId}");
AppWorkflow.AutoStart(pId, manager.Logger);
}
else
{
// resume timer
manager.Logger.LogBackground($"Resuming timer. ProcessId = {pId}");
AppWorkflow.ResumeWorkflowTimer(manager.Host, manager.DbContext, manager.Messaging, pId);
}
});
}
}
catch (Exception ex)
{
String msg = ex.Message;
if (ex.InnerException != null)
{
msg = ex.InnerException.Message;
}
manager.Logger.LogBackgroundError(msg);
}
}
