public void Stop(Boolean setToFaulted)
{
_logger.InfoFormat("CommitPollingClient {0}: Stop called, set to faulted {1}", _id, setToFaulted);
if (Status == CommitPollingClientStatus.Polling)
{
if (_innerClient == null)
{
throw new JarvisFrameworkEngineException($"CommitPollingClient {_id}: Cannot stop polling client because you forget to call Configure First");
}
if (Status != CommitPollingClientStatus.Polling)
{
_logger.WarnFormat($"CommitPollingClient {0}: Cannot stop poller poller is in unstoppable status: {1}", _id, Status);
return;
}
_innerClient.Stop();
CloseEverything();
Status = setToFaulted ?
CommitPollingClientStatus.Faulted :
CommitPollingClientStatus.Stopped;
}
else
{
_logger.WarnFormat("CommitPollingClient {0}: Stop called but it was not started", _id);
}
}
public async Task ShutdownAsync()
{
if (_pollingClient != null)
{
await _pollingClient.Stop().ConfigureAwait(false);
}
}
public async Task polling_client_should_not_miss_data(int parallelism, bool autopolling)
{
_logger.LogDebug("Starting with {Parallelism} workers and Autopolling {Autopolling}", parallelism, autopolling);
var sequenceChecker = new StrictSequenceChecker($"Workers {parallelism} autopolling {autopolling}");
var poller = new PollingClient(Store, 0, sequenceChecker, this.LoggerFactory)
{
PollingIntervalMilliseconds = 0,
HoleDetectionTimeout = 1000
};
if (autopolling)
{
poller.Start();
_logger.LogDebug("Started Polling");
}
const int range = 1000;
var producer = new ActionBlock <int>(async i =>
{
await Store.AppendAsync("p", i, "demo", "op#" + i).ConfigureAwait(false);
}, new ExecutionDataflowBlockOptions()
{
MaxDegreeOfParallelism = parallelism
});
_logger.LogDebug("Started pushing data: {elements} elements", range);
foreach (var i in Enumerable.Range(1, range))
{
Assert.True(await producer.SendAsync(i).ConfigureAwait(false));
}
producer.Complete();
await producer.Completion.ConfigureAwait(false);
_logger.LogDebug("Data pushed");
if (autopolling)
{
_logger.LogDebug("Stopping poller");
await poller.Stop();
_logger.LogDebug("Poller stopped");
}
// read to end
_logger.LogDebug("Polling to end");
var timeout = new CancellationTokenSource(60000);
await poller.Poll(timeout.Token).ConfigureAwait(false);
_logger.LogDebug("Polling to end - done");
Assert.True(poller.Position == sequenceChecker.Position, "Sequence " + sequenceChecker.Position + " != Position " + poller.Position);
Assert.True(range == poller.Position, "Poller @" + poller.Position);
Assert.True(range == sequenceChecker.Position, "Sequence @" + sequenceChecker.Position);
}
/// <summary>
/// Create a poller, start the poller and return starting position of the poller.
/// </summary>
/// <param name="poller"></param>
/// <param name="pollerId"></param>
/// <returns></returns>
private Int64 CreatePollerAndStart(ref PollingClient poller, Int32 pollerId, Func <AtomicDispatchChunk, Task <Boolean> > dispatchToTplFunction)
{
if (poller != null)
{
poller.Stop();
}
var startingPosition = TryGetStartingPoint(pollerId);
Logger.InfoFormat("AtomicProjectionEngine: Starting poller id {0} from position {1}", pollerId, startingPosition);
var subscription = new JarvisFrameworkLambdaSubscription(c => dispatchToTplFunction(new AtomicDispatchChunk(pollerId, c)));
poller = new PollingClient(_persistence, startingPosition, subscription, _nStoreLoggerFactory);
poller.Start();
return(startingPosition);
}
/// <summary>
/// Create a poller, start the poller and return starting position of the poller.
/// </summary>
/// <param name="poller"></param>
/// <param name="pollerId"></param>
/// <returns></returns>
private Int64 CreatePollerAndStart(ref PollingClient poller, Int32 pollerId, Func <AtomicDispatchChunk, Task <Boolean> > dispatchToTplFunction)
{
if (poller != null)
{
poller.Stop();
}
//The default value to start is zero, it is a situation that should never happen, if it happens this poller has no projection to dispatch.
var startingPosition = TryGetStartingPoint(pollerId, 0);
Logger.InfoFormat("AtomicProjectionEngine: Starting poller id {0} from position {1}", pollerId, startingPosition);
var subscription = new JarvisFrameworkLambdaSubscription(c => dispatchToTplFunction(new AtomicDispatchChunk(pollerId, c)));
poller = new PollingClient(_persistence, startingPosition, subscription, _nStoreLoggerFactory);
poller.Start();
return(startingPosition);
}
public void Dispose()
{
_poller.Stop().GetAwaiter().GetResult();
}
public void Stop()
{
_pollingClient.Stop();
}
