public EnrichmentMessageRouter(IDataSource dataSource, IDataSink dataSink, IIoTDeviceDataEnricher dataEnricher, ITelemetryClient telemetryClient, IConfiguration config, ILogger <EnrichmentMessageRouter> logger)
{
this.dataSource = dataSource;
this.dataSink = dataSink;
this.dataEnricher = dataEnricher;
this.telemetryClient = telemetryClient;
this.logger = logger;
this.config = config;
// handle messages as they arrive
this.MessageBatchReceived += (sender, e) =>
{
// process with parallelism
Parallel.ForEach(e.Messages, async(message) =>
{
// get the device id
var deviceId = message.GetDeviceId();
// get the metadata
var startTime = DateTime.UtcNow;
var timer = System.Diagnostics.Stopwatch.StartNew();
try
{
var metadata = await this.dataEnricher.GetMetadataAsync(deviceId);
if (metadata != null)
{
// enrich the message
message.EnrichMessage(metadata);
// output the message
await this.dataSink.WriteMessageAsync(message);
// send the telemetry
timer.Stop();
telemetryClient.TrackDependency("gRPC call", "IoTClient", "GetMetadataAzync", startTime, timer.Elapsed, true);
}
}
catch
{
// send the telemetry
timer.Stop();
logger.LogDebug($"gRPC call took {timer.Elapsed.Milliseconds} ms");
telemetryClient.TrackDependency("gRPC call", "IoTClient", "GetMetadataAzync", startTime, timer.Elapsed, false);
}
finally
{
Interlocked.Decrement(ref waiting);
}
});
};
}
public void TrackSendEmail(string smtpUri, DateTimeOffset startTime, TimeSpan duration, bool success, int attemptNumber)
{
var properties = new Dictionary <string, string>
{
{ "attempt", attemptNumber.ToString() }
};
_telemetryClient.TrackDependency("SMTP", smtpUri, "SendMessage", null, startTime, duration, null, success, properties);
}