protected override async Task <JobExecutionStatus> RunJobAsync(IClusterOperations cluster, CancellationToken cancellationToken = default)
{
ProjectionVersion version = Data.Version;
Type projectionType = version.ProjectionName.GetTypeByContract();
await progressTracker.InitializeAsync(version).ConfigureAwait(false);
if (await projectionVersionHelper.ShouldBeRetriedAsync(version).ConfigureAwait(false))
{
return(JobExecutionStatus.Running);
}
if (await projectionVersionHelper.ShouldBeCanceledAsync(version, Data.DueDate).ConfigureAwait(false))
{
if (Data.IsCanceled == false)
{
await CancelJobAsync(cluster).ConfigureAwait(false);
}
logger.Info(() => $"The job {version} has been cancelled.");
return(JobExecutionStatus.Canceled);
}
await projectionStoreInitializer.InitializeAsync(version).ConfigureAwait(false);
var startSignal = progressTracker.GetProgressStartedSignal();
signalPublisher.Publish(startSignal);
IEnumerable <Type> projectionHandledEventTypes = projectionVersionHelper.GetInvolvedEventTypes(projectionType);
foreach (Type eventType in projectionHandledEventTypes)
{
string eventTypeId = eventType.GetContractId();
bool hasMoreRecords = true;
while (hasMoreRecords && Data.IsCompleted == false)
{
if (cancellationToken.IsCancellationRequested)
{
logger.Info(() => $"The job {version} has been cancelled.");
return(JobExecutionStatus.Running);
}
if (Data.IsCanceled || await projectionVersionHelper.ShouldBeCanceledAsync(version, Data.DueDate).ConfigureAwait(false))
{
if (Data.IsCanceled == false)
{
await CancelJobAsync(cluster).ConfigureAwait(false);
}
logger.Info(() => $"The job {version} has been cancelled.");
return(JobExecutionStatus.Canceled);
}
hasMoreRecords = await RebuildEventsAsync(eventTypeId, cluster, cancellationToken).ConfigureAwait(false);
}
}
Data.IsCompleted = true;
Data.Timestamp = DateTimeOffset.UtcNow;
Data = await cluster.PingAsync(Data).ConfigureAwait(false);
var finishSignal = progressTracker.GetProgressFinishedSignal();
signalPublisher.Publish(finishSignal);
logger.Info(() => $"The job has been completed.");
return(JobExecutionStatus.Completed);
}
/// <summary>
/// Initializing new projection version if needed
/// </summary>
/// <param name="version"></param>
/// <returns></returns>
public void InitializeNewProjectionVersion()
{
ProjectionVersion newPersistentVersion = GetNewProjectionVersion();
projectionVersionInitializer.InitializeAsync(newPersistentVersion);
}
