public override Task <CosmosResponseMessage> SendAsync(
CosmosRequestMessage request,
CancellationToken cancellationToken)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
RequestOptions promotedRequestOptions = request.RequestOptions;
if (promotedRequestOptions != null)
{
// Fill request options
promotedRequestOptions.FillRequestOptions(request);
// Validate the request consistency compatibility with account consistency
// Type based access context for requested consistency preferred for performance
Cosmos.ConsistencyLevel?consistencyLevel = null;
if (promotedRequestOptions is ItemRequestOptions)
{
consistencyLevel = (promotedRequestOptions as ItemRequestOptions).ConsistencyLevel;
}
else if (promotedRequestOptions is QueryRequestOptions)
{
consistencyLevel = (promotedRequestOptions as QueryRequestOptions).ConsistencyLevel;
}
else if (promotedRequestOptions is StoredProcedureRequestOptions)
{
consistencyLevel = (promotedRequestOptions as StoredProcedureRequestOptions).ConsistencyLevel;
}
if (consistencyLevel.HasValue)
{
if (!ValidationHelpers.ValidateConsistencyLevel(this.client.AccountConsistencyLevel, consistencyLevel.Value))
{
throw new ArgumentException(string.Format(
CultureInfo.CurrentUICulture,
RMResources.InvalidConsistencyLevel,
consistencyLevel.Value.ToString(),
this.client.AccountConsistencyLevel));
}
}
}
return(this.client.DocumentClient.EnsureValidClientAsync()
.ContinueWith(task => request.AssertPartitioningDetailsAsync(this.client, cancellationToken))
.ContinueWith(task =>
{
if (task.IsFaulted)
{
throw task.Exception;
}
this.FillMultiMasterContext(request);
return base.SendAsync(request, cancellationToken);
})
.Unwrap());
}