/// <summary>
/// Executes job's child jobs synchronously.
/// </summary>
/// <param name="tasksExecuted">
/// Receives the number of tasks executed by this job's child jobs.
/// </param>
/// <returns>
/// The result of the execution of this job's child jobs.
/// </returns>
private OrchestratedExecutionResult ExecuteChildJobsSynchronous(out int tasksExecuted)
{
OrchestratedExecutionResult result = OrchestratedExecutionResult.Success;
tasksExecuted = 0;
if (Job.ChildJobs != null)
{
Log.Verbose("ScheduledJob ID {0}: Executing synchronous job type {1} child jobs.", JobDetails.JobId,
Job.GetType().Name);
foreach (IOrchestratedJob job in Job.ChildJobs)
{
JobOrchestrator jobOrchestrator = new JobOrchestrator(job, JobDetails, Log);
OrchestratedExecutionResult jobResult = jobOrchestrator.Execute(out tasksExecuted);
if (jobResult == OrchestratedExecutionResult.TerminalError)
{
result = jobResult;
break;
}
else if (jobResult == OrchestratedExecutionResult.NonTerminalError)
{
result = jobResult;
}
}
}
return(result);
}
/// <summary>
/// Executes job tasks and child jobs asynchronously.
/// </summary>
/// <param name="tasksExecuted">
/// Receives the number of tasks executed by this job and all child jobs.
/// </param>
/// <returns>
/// The result of the execution of this job and all child jobs.
/// </returns>
private OrchestratedExecutionResult ExecuteAsynchronous(out int tasksExecuted)
{
OrchestratedExecutionResult result = OrchestratedExecutionResult.Success;
tasksExecuted = 0;
Log.Verbose("ScheduledJob ID {0}: Executing job type {1} tasks and child jobs asynchronously.", JobDetails.JobId,
Job.GetType().Name);
// Determine how many item will execute while running this job.
int itemCount = 0;
if (Job.Tasks != null)
{
itemCount = Job.Tasks.Count;
}
if (Job.ChildJobs != null)
{
itemCount += Job.ChildJobs.Count;
}
// If there are any items to execute, do so asynchronously.
if (itemCount > 0)
{
// Spin up threads to execute the tasks and child jobs.
List <Task> executors = new List <Task>(itemCount);
ConcurrentDictionary <Guid, Tuple <int, OrchestratedExecutionResult> > itemTaskResults =
new ConcurrentDictionary <Guid, Tuple <int, OrchestratedExecutionResult> >(itemCount, itemCount);
if (Job.Tasks != null)
{
IEnumerable <OrchestratedExecutionResult> results = ParallelTaskThrottler.Instance.Run(Job.Tasks);
foreach (OrchestratedExecutionResult orchestratedExecutionResult in results)
{
itemTaskResults[Guid.NewGuid()] = new Tuple <int, OrchestratedExecutionResult>(1, orchestratedExecutionResult);
}
}
if (Job.ChildJobs != null)
{
foreach (IOrchestratedJob job in Job.ChildJobs)
{
JobOrchestrator jobOrchestrator = new JobOrchestrator(job, JobDetails, Log);
executors.Add(Task.Factory.StartNew(() =>
{
int childTasksExecuted;
OrchestratedExecutionResult childResult =
jobOrchestrator.Execute(out childTasksExecuted);
itemTaskResults[Guid.NewGuid()] =
new Tuple <int, OrchestratedExecutionResult>(childTasksExecuted, childResult);
}));
}
}
// Wait until all threads have completed their work.
Task.WaitAll(executors.ToArray());
// Tally up the completed tasks and get overall result.
foreach (Guid key in itemTaskResults.Keys)
{
Tuple <int, OrchestratedExecutionResult> itemTaskResult = itemTaskResults[key];
tasksExecuted += itemTaskResult.Item1;
if (itemTaskResult.Item2 == OrchestratedExecutionResult.TerminalError)
{
result = OrchestratedExecutionResult.TerminalError;
}
else if (itemTaskResult.Item2 == OrchestratedExecutionResult.NonTerminalError &&
result != OrchestratedExecutionResult.TerminalError)
{
result = OrchestratedExecutionResult.NonTerminalError;
}
}
}
return(result);
}
