/// <summary>
/// Dispatches the specified event.
/// </summary>
/// <param name="incomingRow">The incoming row.</param>
public void Process(WakeUpRow incomingRow)
{
var wakeUpEvent = incomingRow as TRow;
if (wakeUpEvent != null)
{
this.DoJobIfNeeded(wakeUpEvent);
}
}
/// <summary>
/// Releases the key.
/// </summary>
/// <param name="item">The item.</param>
public void ReleaseItem(WakeUpRow item)
{
Check.NotNull(() => item);
item = this.provider.GetValue <WakeUpRow>(item.DocumentKey);
if (item == null)
{
return;
}
item.Processing = false;
item.LockEndDate = this.DateTimeProvider.UtcNow;
provider.UpdateOrInsert(item);
}
private WakeUpRow TryLockItem(WakeUpRow item, int maxExecutingInSeconds)
{
if (item.Processing == true && item.LockInitDate.AddSeconds(maxExecutingInSeconds) > DateTimeProvider.UtcNow)
{
return(null);
}
item.LockInitDate = this.DateTimeProvider.UtcNow;
item.Processing = true;
var insertResult = this.provider.UpdateOrInsert(item);
if (insertResult != PersistenceResultEnum.Success)
{
return(null);
}
return(item);
}
private void ProcessIfNeeded(IRecurrentAlarm job)
{
try
{
log.LogDebug(S.Invariant($"Processing job {job.JobName}"));
var jobRow = new WakeUpRow
{
SchedulerName = job.JobName,
DateRangeStart = this.DateTimeProvider.UtcNowTicks
};
var jobRows = this.provider.GetValuesByKeyPattern <WakeUpRow>(100, jobRow.StartKey, jobRow.DocumentType).Items.Where(x => !x.ReverseRow);
foreach (var row in jobRows)
{
if (row.AggregateUid != new Guid())
{
if (this.locker.TryLockKey(row.AggregateUid.ToString(), 300) == null)
{
this.log.LogDebug(S.Invariant($"Aggregate {row.AggregateUid} is locked so the scheduler cannot procces it right now"));
continue;
}
}
else
{
if (this.TryLockItem(row, 300) == null)
{
this.log.LogDebug(S.Invariant($"Row {row.DocumentKey} is blocked so the asynchub cannot procces it right now"));
continue;
}
}
try
{
using (var context = new ThreadContextContainer())
{
log.LogDebug(S.Invariant($"Processing row {row.DocumentKey} for job {job.JobName}"));
job.Process(row);
this.unitOfWork.Commit();
}
}
catch (Exception ex)
{
this.log.LogError(
ex,
S.Invariant($"Error processing row {row.DocumentKey}"));
}
try
{
this.ReleaseItem(row);
this.locker.ReleaseKey(row.AggregateUid.ToString());
}
catch (Exception ex)
{
this.log.LogError(
ex,
S.Invariant($"Error releasing row {row.DocumentKey}"));
}
}
}
catch (Exception ex)
{
this.log.LogError(
ex,
S.Invariant($"Uncontrolled Exception"));
}
}
