public RetryStartupAndShutdownTasks()
{
executor = new PeriodicExecutor(
AdoptOrphanedBatches,
TimeSpan.FromMinutes(2)
);
}
public void If_execution_takes_longer_than_period_it_triggers_next_execution_immediately_after_previous()
{
var counter = 0;
var failure = false;
var lastEndTime = DateTime.MinValue;
var @event = new ManualResetEventSlim(false);
var delay = TimeSpan.Zero;
var executor = new PeriodicExecutor(ex =>
{
delay = DateTime.Now - lastEndTime;
if (lastEndTime != DateTime.MinValue && delay > TimeSpan.FromMilliseconds(100))
{
@event.Set();
failure = true;
return;
}
counter++;
Thread.Sleep(2000);
lastEndTime = DateTime.Now;
if (counter == 2)
{
@event.Set();
}
}, TimeSpan.FromSeconds(1));
executor.Start(true);
@event.Wait();
executor.Stop();
Assert.IsFalse(failure, string.Format("Time between finishing previous execution and starting this longer than {0} ms",delay));
}
public RetryProcessor(IBodyStorage bodyStorage, ISendMessages sender, IDocumentStore store, IBus bus, ReturnToSenderDequeuer returnToSender)
{
executor = new PeriodicExecutor(Process, TimeSpan.FromSeconds(30), ex => Log.Error("Error during retry batch processing", ex));
this.bodyStorage = bodyStorage;
this.sender = sender;
this.store = store;
this.bus = bus;
this.returnToSender = returnToSender;
}
public void Can_shutdown_while_waiting()
{
var @event = new ManualResetEventSlim(false);
var executor = new PeriodicExecutor(ex => @event.Set(), TimeSpan.FromSeconds(10000));
executor.Start(false);
@event.Wait();
Thread.Sleep(1000);
executor.Stop();
Assert.Pass();
}
private void AdoptOrphanedBatches(PeriodicExecutor ex)
{
var allDone = true;
if (RetryDocumentManager != null)
{
allDone = RetryDocumentManager.AdoptOrphanedBatches();
}
if (allDone)
{
executor.Stop();
}
}
public void If_execution_throws_it_does_not_kill_the_executor()
{
var first = true;
var success = false;
var @event = new ManualResetEventSlim(false);
var executor = new PeriodicExecutor(ex =>
{
if (first)
{
first = false;
throw new Exception();
}
success = true;
@event.Set();
}, TimeSpan.FromSeconds(1));
executor.Start(true);
@event.Wait();
executor.Stop();
Assert.IsTrue(success);
}
void Process(PeriodicExecutor e)
{
bool batchesProcessed;
do
{
using (var session = store.OpenSession())
{
batchesProcessed = ProcessBatches(session);
session.SaveChanges();
}
} while (batchesProcessed && !e.IsCancellationRequested);
}
