public Guid Schedule(Activity activity, Guid?correlationId = null)
{
if (activity == null)
{
throw new ArgumentNullException("activity");
}
if (correlationId != null)
{
var existing = _persistenceStore.LoadBy(correlationId.Value);
if (existing != null)
{
return(existing.Id);
}
}
var job = new Job(Guid.NewGuid(), typeof(JobRoot), "Run", new object[0], _now(),
correlationId: correlationId,
status: JobStatus.WaitingForChildren);
var converted = _activityToContinuationConverter.Convert(activity, job);
_persistenceStore.Store(converted.Jobs);
job = _jobMutator.Mutate <Scheduler>(job, continuation: converted.Continuation);
_router.Route(job);
return(job.Id);
}
public Job Mutate <TSource>(Job job,
JobStatus?status = null,
int?dispatchCount = null,
DateTime?retryOn = null,
Continuation continuation = null,
bool?suspended = null)
{
var newJob = new Job(job.Id,
job.Type,
job.Method,
job.Arguments,
job.CreatedOn,
job.RootId,
job.ParentId,
job.CorrelationId,
status ?? job.Status,
dispatchCount ?? job.DispatchCount,
retryOn ?? job.RetryOn,
job.ExceptionFilters,
continuation ?? job.Continuation,
suspended ?? job.Suspended);
_repository.Store(newJob);
if (job.Status != newJob.Status)
{
_eventStream.Publish <TSource>(
EventType.JobStatusChanged,
EventProperty.JobSnapshot(job),
EventProperty.FromStatus(job.Status),
EventProperty.ToStatus(newJob.Status));
}
return(newJob);
}
public Job Transit(Job job, Activity activity)
{
if (job == null)
{
throw new ArgumentNullException("job");
}
if (activity == null)
{
throw new ArgumentNullException("activity");
}
var converted = _activityToContinuationConverter.Convert(activity, job);
_persistenceStore.Store(converted.Jobs);
job = _jobMutator.Mutate <WaitingForChildrenTransition>(job, status: JobStatus.WaitingForChildren,
continuation: converted.Continuation);
_recoverableAction.Run(() => _continuationDispatcher.Dispatch(job));
return(job);
}
//把状态保存到备忘录
public virtual void SaveCheckPoint(int version)
{
store.Store(key, version, state);
}