private Stream GenerateCompressedRawResource(string rawResource)
{
var outputStream = new RecyclableMemoryStream(_recyclableMemoryStreamManager);
_compressedRawResourceConverter.WriteCompressedRawResource(outputStream, rawResource);
return(outputStream);
}
public async Task <UpsertOutcome> UpsertAsync(ResourceWrapper resource, WeakETag weakETag, bool allowCreate, bool keepHistory, CancellationToken cancellationToken)
{
int?eTag = weakETag == null
? null
: (int.TryParse(weakETag.VersionId, out var parsedETag) ? parsedETag : -1); // Set the etag to a sentinel value to enable expected failure paths when updating with both existing and nonexistent resources.
var resourceMetadata = new ResourceMetadata(
resource.CompartmentIndices,
resource.SearchIndices?.ToLookup(e => _searchParameterTypeMap.GetSearchValueType(e)),
resource.LastModifiedClaims);
using (SqlConnectionWrapper sqlConnectionWrapper = await _sqlConnectionWrapperFactory.ObtainSqlConnectionWrapperAsync(cancellationToken, true))
using (SqlCommandWrapper sqlCommandWrapper = sqlConnectionWrapper.CreateSqlCommand())
using (var stream = new RecyclableMemoryStream(_memoryStreamManager))
{
_compressedRawResourceConverter.WriteCompressedRawResource(stream, resource.RawResource.Data);
stream.Seek(0, 0);
PopulateUpsertResourceCommand(sqlCommandWrapper, resource, resourceMetadata, allowCreate, keepHistory, eTag, stream, _coreFeatures.SupportsResourceChangeCapture);
try
{
var newVersion = (int?)await sqlCommandWrapper.ExecuteScalarAsync(cancellationToken);
if (newVersion == null)
{
// indicates a redundant delete
return(null);
}
resource.Version = newVersion.ToString();
SaveOutcomeType saveOutcomeType;
if (newVersion == 1)
{
saveOutcomeType = SaveOutcomeType.Created;
}
else
{
saveOutcomeType = SaveOutcomeType.Updated;
resource.RawResource.IsMetaSet = false;
}
return(new UpsertOutcome(resource, saveOutcomeType));
}
catch (SqlException e)
{
switch (e.Number)
{
case SqlErrorCodes.PreconditionFailed:
throw new PreconditionFailedException(string.Format(Core.Resources.ResourceVersionConflict, weakETag?.VersionId));
case SqlErrorCodes.NotFound:
if (weakETag != null)
{
throw new ResourceNotFoundException(string.Format(Core.Resources.ResourceNotFoundByIdAndVersion, resource.ResourceTypeName, resource.ResourceId, weakETag.VersionId));
}
goto default;
case SqlErrorCodes.MethodNotAllowed:
throw new MethodNotAllowedException(Core.Resources.ResourceCreationNotAllowed);
case SqlErrorCodes.TimeoutExpired:
throw new RequestTimeoutException(Resources.ExecutionTimeoutExpired);
default:
_logger.LogError(e, "Error from SQL database on upsert");
throw;
}
}
}
}