private async Task SendBatchEvents(CancellationToken cancellationToken)
{
var batch = new List <Message>(batchSize);
while (!cancellationToken.IsCancellationRequested)
{
while ((batch.Count < batchSize) && !cancellationToken.IsCancellationRequested)
{
if (!queue.TryDequeue(out var result))
{
await Task.Delay(interval / 2);
continue;
}
var lag = DateTime.UtcNow - result;
var body = JsonConvert.SerializeObject(new { result, lag });
logger.LogInformation("SendBatchEvents: {0} lag", lag);
batch.Add(new Message(Encoding.Unicode.GetBytes(body)));
}
if (batch.Count > 0)
{
await moduleClient.SendEventBatchAsync(batch, cancellationToken);
logger.LogInformation("Sent {0} messages", batch.Count);
batch.Clear();
}
}
logger.LogInformation("SendBatchEvents cancelled");
}
/// <summary>
/// Send the batch of events.
/// </summary>
/// <param name="batch">the set of events to send</param>
protected virtual async Task SendBatchAsync(IList <Message> batch)
{
if (batch == null || batch.Count == 0)
{
return;
}
ModuleClient client = await ModuleClientCache.Instance.GetOrCreateAsync().ConfigureAwait(false);
if (string.IsNullOrEmpty(this.attribute.OutputName))
{
await client.SendEventBatchAsync(batch).ConfigureAwait(false);
}
else
{
await client.SendEventBatchAsync(this.attribute.OutputName, batch).ConfigureAwait(false);
}
}
