public List <JobInstance> QueueScheduledJobs(bool clearExistingScheduledJobInstancesFromWaitingQueue = true)
{
if (clearExistingScheduledJobInstancesFromWaitingQueue)
{
JobQueueManager.DequeueScheduledJobs();
}
List <JobInstance> jobInstances = new List <JobInstance>();
var integrations = _configurator.GetIntegrations().Where(d => d.IsEnabled);
foreach (var integration in integrations)
{
var jobs = integration.Jobs.Where(d => d.IsEnabled);
foreach (var job in jobs)
{
if (job.Steps.Where(d => d.IsEnabled).Count() > 0 && job.SourceDataSources.Values.Count > 0)
{
var nextSoonestRunTime = GetNextScheduledRunTimeForJob(job.Id);
if (nextSoonestRunTime.HasValue)
{
var addedJobInstances = JobQueueManager.QueueJob(integration, job.SourceDataSources.Values, job, nextSoonestRunTime.Value, "Sync Engine Scheduler", JobInvocationSourceType.Scheduled);
jobInstances.AddRange(addedJobInstances);
}
}
}
}
return(jobInstances);
}
public List <JobInstance> QueueJobForNextScheduledRunTime(Guid jobId)
{
var nextSoonestRunTime = GetNextScheduledRunTimeForJob(jobId);
var integration = _configurator.GetIntegrationByJobId(jobId);
var job = _configurator.GetJobById(jobId);
if (nextSoonestRunTime.HasValue)
{
return(JobQueueManager.QueueJob(integration, job.SourceDataSources.Values, job, nextSoonestRunTime.Value, "Sync Engine Scheduler", JobInvocationSourceType.Scheduled));
}
else
{
return(new List <JobInstance>());
}
}
/// <summary>
/// Clears the in-memory queue and refreshes from the database as best as possible.
///
/// NOTE: Job configurations may have changed and new changes will be reflected within the job instances.
/// </summary>
/// <returns>Returns a list of queued job instances.</returns>
public List <JobInstance> RecoverJobInstancesFromQueueLog()
{
if (!JobQueueManager.IsSafeForQueueLogRetrieval)
{
throw new Exception("The Job Queue Manager is in an unsafe state as job statuses may change. Queue retrieval from the database is disallowed.");
}
bool queueManagerWasStarted = JobQueueManager.Status == JobQueueManagerStatus.Started ? true : false;
if (queueManagerWasStarted)
{
JobQueueManager.Stop();
}
// clear the in-memory queue
JobQueueManager.DequeueAllJobs();
List <JobInstance> queuedJobInstances = new List <JobInstance>();
using (var dbContext = new ls.QueueManagementDataContext(_connectionString))
{
foreach (var jobInstanceGuid in dbContext.JobQueues.Select(d => d.JobInstanceId).ToList())
{
var jobInstance = GetJobInstanceFromQueueLog(jobInstanceGuid, throwExceptionIfSyncObjectsAreDeletedOrDisabled: false);
if (jobInstance == null)
{
DeleteFromQueueLog(jobInstanceGuid);
continue;
}
else
{
switch (jobInstance.Status)
{
case JobQueueStatus.Scheduled:
case JobQueueStatus.Delayed_NoAvailableThread:
case JobQueueStatus.InProgress:
case JobQueueStatus.InProgress_MaxDelayExceeded:
DeleteFromQueueLog(jobInstanceGuid);
// all job instances will start over with JobQueueStatus = Scheduled
JobQueueManager.QueueJob(jobInstance);
queuedJobInstances.Add(jobInstance);
break;
case JobQueueStatus.Completed:
case JobQueueStatus.Completed_WithError:
case JobQueueStatus.Terminated_WithError:
case JobQueueStatus.DidNotRun_ErrorWithinQueueRequest:
MoveToHistoryLog(jobInstance);
break;
default:
throw new EnumValueNotImplementedException <JobQueueStatus>(jobInstance.Status);
}
}
}
}
if (queueManagerWasStarted)
{
JobQueueManager.Restart();
}
return(queuedJobInstances);
}
