private async Task <ResourceResponse <Document> > UpsertDocumentAsync(DeviceMaterializedView document, RequestOptions options)
{
var policy = Policy
.Handle <DocumentClientException>(e => { return(e.StatusCode == HttpStatusCode.TooManyRequests); })
.WaitAndRetryAsync(3,
sleepDurationProvider: (retryAttempt, context) =>
{
if (context?.ContainsKey("RetryAfter") ?? false)
{
return((TimeSpan)context["RetryAfter"]);
}
return(TimeSpan.FromMilliseconds(10));
},
onRetryAsync: (exception, timespan, retryAttempt, context) =>
{
context["RetryAfter"] = (exception as DocumentClientException).RetryAfter;
log.LogWarning($"Waiting for {context["RetryAfter"]} msec...");
return(Task.CompletedTask);
});
return(await policy.ExecuteAsync(async() =>
{
var collectionUri = UriFactory.CreateDocumentCollectionUri(databaseId, collectionId);
var result = await client.UpsertDocumentAsync(collectionUri, document, options);
log.LogInformation($"{options.PartitionKey} RU Used: {result.RequestCharge:0.0}");
return result;
}));
}
public async Task UpdateViewAsync(DeviceEvent @event)
{
log.LogInformation("Updating view");
var optionsSingle = new RequestOptions {
PartitionKey = new PartitionKey(@event.DeviceId)
};
var view = await GetViewAsync(@event.DeviceId, optionsSingle);
if (view == null)
{
view = new DeviceMaterializedView
{
DeviceId = @event.DeviceId
};
}
if (@event is DeviceSensorEvent sensorEvent)
{
view.SensorMeasurements++;
view.SensorAggregationSum += sensorEvent.Value;
view.SensorLastValue = sensorEvent.Value;
view.TimeStamp = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssK");
await UpsertDocumentAsync(view, optionsSingle);
}
else if (@event is DeviceBatteryEvent batteryEvent)
{
view.BatteryLevel = $"{batteryEvent.Value}%";
view.TimeStamp = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssK");
await UpsertDocumentAsync(view, optionsSingle);
}
}
