public async Task <IEnumerable <ResourceUsage> > GetUsagesAsync(
IEnumerable <SubscriptionModel> subscriptions,
DateTime startTime,
DateTime endTime)
{
var resourceUsages = new List <ResourceUsage>();
using (var client = new RateCardClient(this.context.ARMAccessToken, this.context.ARMBaseUri))
{
// TODO: revisit here to check whether contains non resource id specific usages, e.g. legacy resources.
foreach (var subscription in subscriptions)
{
IEnumerable <UsageAggregate> usages;
try
{
usages = await client.GetUsagesAsync(subscription.SubscriptionId, startTime, endTime);
}
catch (CloudException ex)
{
if (this.context.ARMBaseUri == new AzureEnvironmentHelper("AzureChinaCloud").ResourceManagerEndpoint &&
ex.Message.StartsWith("The resource type could not be found in the namespace 'Microsoft.Commerce'", StringComparison.OrdinalIgnoreCase))
{
// Skip usage retrieving since the RP is not available yet in Azure China Cloud
usages = new UsageAggregate[] { };
}
else
{
throw;
}
}
var resourceIds = new HashSet <string>(
subscription.ResourceGroups
.SelectMany(r => r.Value)
.Select(m => m.Id)
.Distinct(),
StringComparer.OrdinalIgnoreCase);
resourceUsages.AddRange(usages
.Where(u => resourceIds.Contains(u.ResourceUri))
.GroupBy(u => new
{
resourceUri = u.ResourceUri,
meterId = u.Properties.MeterId
})
.Select(g => new ResourceUsage
{
ResourceUri = g.Key.resourceUri,
MeterId = g.Key.meterId,
Quantity = g.Sum(m => m.Properties.Quantity)
}));
}
}
return(resourceUsages);
}
private void ValidateUsageAggregate(UsageAggregate ua)
{
Assert.NotNull(ua);
Assert.NotNull(ua.Id);
Assert.NotNull(ua.InstanceData);
Assert.NotNull(ua.MeterId);
Assert.NotNull(ua.Name);
Assert.NotNull(ua.Quantity);
Assert.NotNull(ua.SubscriptionId);
Assert.NotNull(ua.Type);
Assert.NotNull(ua.UsageEndTime);
Assert.NotNull(ua.UsageStartTime);
}
private static double CalcMeterPerUsage(UsageAggregate usage, Resource meter, TraceWriter log) => usage.Properties.Quantity * meter.MeterRates[0];
