// Process all messages for a particular client
async Task <ISinkResult <IRoutingMessage> > ProcessClientMessages(string id, List <IRoutingMessage> routingMessages, CancellationToken token)
{
var succeeded = new List <IRoutingMessage>();
var failed = new List <IRoutingMessage>();
var invalid = new List <InvalidDetails <IRoutingMessage> >();
Devices.Routing.Core.Util.Option <SendFailureDetails> sendFailureDetails =
Option.None <SendFailureDetails>();
// Find the maximum message size, and divide messages into largest batches
// not exceeding max allowed IoTHub message size.
long maxMessageSize = routingMessages.Select(r => r.Size()).Max();
int batchSize = GetBatchSize(Math.Min(this.cloudEndpoint.maxBatchSize, routingMessages.Count), maxMessageSize);
foreach (IEnumerable <IRoutingMessage> batch in routingMessages.Batch(batchSize))
{
ISinkResult res = await this.ProcessClientMessagesBatch(id, batch.ToList(), token);
succeeded.AddRange(res.Succeeded);
failed.AddRange(res.Failed);
invalid.AddRange(res.InvalidDetailsList);
sendFailureDetails = res.SendFailureDetails;
}
return(new SinkResult <IRoutingMessage>(
succeeded,
failed,
invalid,
sendFailureDetails.GetOrElse(null)));
}
public async Task <ISinkResult> ProcessAsync(ICollection <IRoutingMessage> routingMessages, CancellationToken token)
{
Preconditions.CheckNotNull(routingMessages, nameof(routingMessages));
var succeeded = new List <IRoutingMessage>();
var failed = new List <IRoutingMessage>();
var invalid = new List <InvalidDetails <IRoutingMessage> >();
Devices.Routing.Core.Util.Option <SendFailureDetails> sendFailureDetails =
Devices.Routing.Core.Util.Option.None <SendFailureDetails>();
Events.ProcessingMessages(routingMessages);
foreach (IRoutingMessage routingMessage in routingMessages)
{
if (token.IsCancellationRequested)
{
break;
}
ISinkResult res = await this.ProcessAsync(routingMessage, token);
succeeded.AddRange(res.Succeeded);
failed.AddRange(res.Failed);
invalid.AddRange(res.InvalidDetailsList);
sendFailureDetails = res.SendFailureDetails;
}
return(new SinkResult <IRoutingMessage>(succeeded, failed, invalid,
sendFailureDetails.GetOrElse(null)));
}
async Task <ISinkResult> ProcessByClients(ICollection <IRoutingMessage> routingMessages, CancellationToken token)
{
var routingMessageGroups = (from r in routingMessages
group r by this.GetIdentity(r)
into g
select new { Id = g.Key, RoutingMessages = g.ToList() })
.ToList();
var succeeded = new List <IRoutingMessage>();
var failed = new List <IRoutingMessage>();
var invalid = new List <InvalidDetails <IRoutingMessage> >();
Devices.Routing.Core.Util.Option <SendFailureDetails> sendFailureDetails =
Option.None <SendFailureDetails>();
Events.ProcessingMessageGroups(routingMessages, routingMessageGroups.Count, this.cloudEndpoint.FanOutFactor);
foreach (var groupBatch in routingMessageGroups.Batch(this.cloudEndpoint.FanOutFactor))
{
IEnumerable <Task <ISinkResult <IRoutingMessage> > > sendTasks = groupBatch
.Select(item => this.ProcessClientMessages(item.Id, item.RoutingMessages, token));
ISinkResult <IRoutingMessage>[] sinkResults = await Task.WhenAll(sendTasks);
foreach (ISinkResult <IRoutingMessage> res in sinkResults)
{
succeeded.AddRange(res.Succeeded);
failed.AddRange(res.Failed);
invalid.AddRange(res.InvalidDetailsList);
// Different branches could have different results, but only the first one will be reported
if (!sendFailureDetails.HasValue)
{
sendFailureDetails = res.SendFailureDetails;
}
}
}
return(new SinkResult <IRoutingMessage>(
succeeded,
failed,
invalid,
sendFailureDetails.GetOrElse(null)));
}