public void ExecuteScheduledTask(ScheduledTaskExecutionInfo scheduledTaskInfo)
{
try
{
ScheduledTaskExecution execution = PrepareScheduledTaskForExecution(scheduledTaskInfo);
execution.Execute();
RescheduleTask(scheduledTaskInfo);
Logger.Debug(string.Format(@"Scheduled Task ""{0}"" has finished.", scheduledTaskInfo.ScheduledTaskName),
LogCategories.ScheduledTaskMonitor);
}
catch (DataThreadDeadlockException ex)
{
Logger.Fatal(string.Format(@"Scheduled Task {0} could not be rescheduled. Exiting...",
scheduledTaskInfo.ScheduledTaskName),
ex, OperationContext.LoggingCategory);
ExitStrategy.Quitting = true;
throw;
}
catch (Exception ex)
{
var message = PrepareExecutionErrorMessage(scheduledTaskInfo.ScheduledTaskId, scheduledTaskInfo.ScheduledTaskName, ex);
Logger.Error(message, ex, OperationContext.LoggingCategory);
var outcome = HandleScheduledTaskFailure(scheduledTaskInfo.ScheduledTaskId,
message,
scheduledTaskInfo.MaximumRetries,
scheduledTaskInfo.CurrentRetries);
if (outcome == ScheduledTaskStatusId.Failed)
SendFailureReportViaEmail(scheduledTaskInfo.ScheduledTaskId, message);
}
}
public MockedFailedScheduledTaskEngine(ScheduledTaskMonitorContext context, ScheduledTaskExecutionInfo fakeItemForGetScheduledTasksToRun = null)
: base(context)
{
ExitStrategy.Quitting = false; // <<==== IMPORTANT! Otherwise the engine "loop" will just quit before it has even started
_getReturnItem = fakeItemForGetScheduledTasksToRun;
FinalStatusOutcomeDeterminedHandler += outcomeStatusId =>
{
StatusResult = outcomeStatusId;
ExitStrategy.Quitting = true;
};
}
private void RescheduleTask(ScheduledTaskExecutionInfo scheduledTaskInfo)
{
OperationContext.ThreadSafeDataAccess.DataAccessOperation(() =>
{
using (var database = new CloudCoreDB())
{
database.Cloudcore_ScheduledTaskUpdateOutcome(
scheduledTaskInfo.ScheduledTaskId,
(int)ScheduledTaskStatusId.Pending,
reason: string.Empty);
}
});
}
private ScheduledTaskExecution PrepareScheduledTaskForExecution(ScheduledTaskExecutionInfo scheduledTaskInfo)
{
ScheduledTaskExecution execution;
var scheduleTaskGuidName = scheduledTaskInfo.ScheduledTaskGuid.ToString()
.Replace("-", "_")
.Replace("{", string.Empty)
.Replace("}", string.Empty).ToLower();
if (scheduledTaskInfo.ScheduledTaskType == ExecutionType.Sql)
{
var storedProcName = string.Format("[cloudcore].[CCScheduledTask_{0}]", scheduleTaskGuidName);
execution = new ScheduledTaskExecution(storedProcName, scheduledTaskInfo.ScheduledTaskId, OperationContext.ThreadSafeDataAccess, ExitStrategy);
}
else
{
var classTypeName = (string.Format(@"_{0}", scheduleTaskGuidName));
Type scheduledTaskClassType;
if (!ScheduledTaskClassTypes.TryGetValue(classTypeName, out scheduledTaskClassType))
{
throw new UnknownWorkerTaskTypeException(string.Format(@"A Class Type could not be found in the loaded modules to instantiate " +
@"the scheduled task for execution. Scheduled Task GUID {0}." +
@"(Have you registered all your modules? Please see " +
@"""CloudCore.Deployment.VirtualWorker.Worker.RegisterWorkerModules()"" " +
@"for more information.)", scheduledTaskInfo.ScheduledTaskGuid));
}
var scheduledTask = ((IScheduledTask)Activator.CreateInstance(scheduledTaskClassType));
execution = new ScheduledTaskExecution(scheduledTask, scheduledTaskInfo.ScheduledTaskId, OperationContext.ThreadSafeDataAccess, ExitStrategy);
}
return execution;
}
