public async Task GivenEventsArray_CalculateEventStats_ThenEventStatsReturned_Test()
{
// 22 bytes
var body = Encoding.UTF8.GetBytes("22 characters to bytes");
var evt = new EventData(body);
// 93 bytes on Linux, 94 bytes on Windows
evt.SystemProperties = new SystemPropertiesCollection(1, DateTime.MinValue, "1", "1");
// 14 bytes
evt.Properties["7 chars"] = "7 chars";
// 14 bytes
evt.SystemProperties.TryAdd("7 chars", "7 chars");
var evtBatch = new EventData[] { evt };
IEventProcessingMeter meter = new EventProcessingMeter();
var stats = await meter.CalculateEventStats(evtBatch);
// DateTime.MinValue = "01/01/0001 00:00:00" on Linux
// DateTime.MinValue = "1/1/0001 12:00:00 AM" on Windows
if (DateTime.MinValue.ToString() == "01/01/0001 00:00:00")
{
Assert.Equal(143, stats.TotalEventsProcessedBytes); // 22 + 93 + 14 + 14 = 143
}
else
{
Assert.Equal(144, stats.TotalEventsProcessedBytes); // 22 + 94 + 14 + 14 = 144
}
}
public async Task NormalizeDeviceData(
[EventHubTrigger("input", Connection = "InputEventHub")] EventData[] events,
[EventHubMeasurementCollector("output", Connection = "OutputEventHub")] IAsyncCollector <IMeasurement> output,
[Blob("template/%Template:DeviceContent%", FileAccess.Read)] string templateDefinitions,
[DeviceDataNormalization] IOptions <NormalizationServiceOptions> normalizationSettings)
{
try
{
EnsureArg.IsNotNull(templateDefinitions, nameof(templateDefinitions));
EnsureArg.IsNotNull(events, nameof(events));
EnsureArg.IsNotNull(normalizationSettings, nameof(normalizationSettings));
var templateContext = _collectionContentTemplateFactory.Create(templateDefinitions);
templateContext.EnsureValid();
var template = templateContext.Template;
_logger.LogMetric(
IomtMetrics.DeviceEvent(),
events.Length);
IDataNormalizationService <EventData, IMeasurement> dataNormalizationService = new MeasurementEventNormalizationService(_logger, template, _exceptionTelemetryProcessor);
await dataNormalizationService.ProcessAsync(events, output).ConfigureAwait(false);
if (normalizationSettings.Value.LogDeviceIngressSizeBytes)
{
IEventProcessingMeter meter = new EventProcessingMeter();
var eventStats = await meter.CalculateEventStats(events);
_logger.LogMetric(
IomtMetrics.DeviceIngressSizeBytes(),
eventStats.TotalEventsProcessedBytes);
}
}
catch (Exception ex)
{
_logger.LogMetric(
IomtMetrics.UnhandledException(ex.GetType().Name, ConnectorOperation.Normalization),
1);
throw;
}
}
public async Task GivenEventsArray_CalculateEventStats_ThenEventStatsReturned_Test()
{
// 22 bytes
var body = Encoding.UTF8.GetBytes("22 characters to bytes");
var evt = new EventData(body);
// 94 bytes
evt.SystemProperties = new SystemPropertiesCollection(1, DateTime.MinValue, "1", "1");
// 14 bytes
evt.Properties["7 chars"] = "7 chars";
// 14 bytes
evt.SystemProperties.TryAdd("7 chars", "7 chars");
var evtBatch = new EventData[] { evt };
IEventProcessingMeter meter = new EventProcessingMeter();
var stats = await meter.CalculateEventStats(evtBatch);
// 22 + 94 + 14 + 14 = 144
Assert.Equal(144, stats.TotalEventsProcessedBytes);
}
