/// <summary>
/// Requeues the orphaned processing items.
/// If any ReportStatusId == 2 and the ReportGenerationQueueId is not in the list
/// of threads that is executing the reports anymore, then 'RESET' the item, for regeneration
/// increase the retry count
/// </summary>
/// <param name="generationDao">The generation DAO.</param>
private void RequeueOrphanedProcessingItems(GenerationDao generationDao)
{
List<ReportGenerationQueue> processingReportList = generationDao.FindAll<ReportGenerationQueue>(queue =>
queue.ReportGenerationStatus == ReportStatus.Processing).ToList();
if (processingReportList != null && processingReportList.Count > 0)
{
foreach (ReportGenerationQueue item in processingReportList)
{
IHostedProcess runningApplication = this._reportGeneratorEngineList.FirstOrDefault(
entity => entity.ReportGenerationQueueId == item.ReportGenerationQueueId);
if (runningApplication == null)
{
// this item in set to running in DB, but is not in current executing threads anymore
// hence this might be a report that generated a fatal exception, that can be recovered & rescheduled
this.ReportQueueStatusService.UpdateReportGenerationQueue(new ReportGenerationQueueStatusDto()
{
ReportGenerationQueueId = item.ReportGenerationQueueId,
NumberOfRetries = item.NumberOfRetries + 1,
ReportStatus = ReportStatus.Queued
});
}
}
}
}
/// <summary>
/// Pulls the next report.
/// </summary>
/// <param name="generationDao">The generation DAO.</param>
/// <returns></returns>
private ReportGenerationQueue PullNextReport(GenerationDao generationDao)
{
List<ReportGenerationQueue> scheduledReportList = generationDao
.FindAll<ReportGenerationQueue>(queue =>
queue.ReportGenerationStatus == ReportStatus.Queued)
.OrderBy(entity => entity.ReportGenerationQueueId)
.ToList();
scheduledReportList = this.FilterQueueForUser(scheduledReportList);
ReportGenerationQueue queuedReport = scheduledReportList.FirstOrDefault();
return queuedReport;
}
