private async Task ProcessEvent(ProcessEventArgs eventArgs)
{
// Note there is a bug with the HasEvent property in Preview 6, so check if Data is not null as work around.
// https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/eventhub/Azure.Messaging.EventHubs.Processor/samples/Sample08_EventProcessingHeartbeat.cs#L85
if (eventArgs.Data != null)
{
var totalCount = 0;
var cancellationToken = _cancellationTokenSource.Token;
var blobName = Encoding.UTF8.GetString(eventArgs.Data.Body.Span);
var blobClient = _blobContainerClient.GetBlobClient(blobName);
var downloadInfo = await blobClient.DownloadAsync(cancellationToken);
_logger.LogInformation("Processing {blob}", blobName);
var newLineCountingStream = new NewLineCountingStream();
await downloadInfo.Value.Content.CopyToAsync(newLineCountingStream, cancellationToken);
var newLineCount = newLineCountingStream.NewLineCount;
await blobClient.SetMetadataAsync(
new Dictionary <string, string>()
{
{ "whitespacecount", newLineCount.ToString() }
},
cancellationToken : cancellationToken);
_logger.LogInformation("{blob} had {lines} lines", blobName, newLineCount);
totalCount += newLineCount;
using EventDataBatch eventBatch = await _resultsClient.CreateBatchAsync();
eventBatch.TryAdd(new EventData(BitConverter.GetBytes(totalCount)));
await _resultsClient.SendAsync(eventBatch, cancellationToken);
await eventArgs.UpdateCheckpointAsync();
}
}
private async Task ProcessEvent(ProcessEventArgs eventArgs)
{
if (eventArgs.HasEvent)
{
var totalCount = 0;
var cancellationToken = _cancellationTokenSource.Token;
var blobName = Encoding.UTF8.GetString(eventArgs.Data.Body.Span);
var blobClient = _blobContainerClient.GetBlobClient(blobName);
var downloadInfo = await blobClient.DownloadAsync(cancellationToken);
_logger.LogInformation("Processing {blob}", blobName);
var newLineCountingStream = new NewLineCountingStream();
await downloadInfo.Value.Content.CopyToAsync(newLineCountingStream, cancellationToken);
var newLineCount = newLineCountingStream.NewLineCount;
await blobClient.SetMetadataAsync(
new Dictionary <string, string>()
{
{ "whitespacecount", newLineCount.ToString() }
},
cancellationToken : cancellationToken);
_logger.LogInformation("{blob} had {lines} lines", blobName, newLineCount);
totalCount += newLineCount;
using EventDataBatch eventBatch = await _resultsClient.CreateBatchAsync();
eventBatch.TryAdd(new EventData(BitConverter.GetBytes(totalCount)));
await _resultsClient.SendAsync(eventBatch, cancellationToken);
await eventArgs.UpdateCheckpointAsync();
}
}
