private async Task NotifyClusterAsync(string eventTypeId, string paginationToken, IClusterOperations cluster, CancellationToken cancellationToken)
{
var progress = new RebuildProjection_JobData.EventPaging(eventTypeId, paginationToken, progressTracker.Processed, progressTracker.TotalEvents);
Data.MarkEventTypeProgress(progress);
Data.Timestamp = DateTimeOffset.UtcNow;
Data = await cluster.PingAsync(Data, cancellationToken).ConfigureAwait(false);
var progressSignal = progressTracker.GetProgressSignal();
signalPublisher.Publish(progressSignal);
}
private async Task <bool> RebuildEventsAsync(string eventTypeId, IClusterOperations cluster, CancellationToken cancellationToken)
{
RebuildProjection_JobData.EventPaging paging = Data.EventTypePaging.Where(et => et.Type.Equals(eventTypeId, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
unchecked
{
ulong pagingProcessedCount = Data.EventTypePaging.Select(p => p.ProcessedCount).DefaultIfEmpty().Aggregate((x, y) => x + y);
progressTracker.Processed = pagingProcessedCount;
}
string paginationToken = paging?.PaginationToken;
LoadIndexRecordsResult indexRecordsResult = await eventToAggregateIndex.EnumerateRecordsAsync(eventTypeId, paginationToken).ConfigureAwait(false); // TODO: Think about cassandra exception here. Such exceptions MUST be handled in the concrete impl of the IndexStore
IEnumerable <EventStream> eventStreams = await rebuildingRepository.LoadEventsAsync(indexRecordsResult.Records, Data.Version).ConfigureAwait(false);
await rebuildingRepository.SaveAggregateCommitsAsync(eventStreams, Data).ConfigureAwait(false);
await NotifyClusterAsync(eventTypeId, indexRecordsResult.PaginationToken, cluster, cancellationToken).ConfigureAwait(false);
var hasMoreRecords = indexRecordsResult.Records.Any();
return(hasMoreRecords);
}