private static HttpStatusCode ValidateBundleEntryAndGetStatusCode()

in converter/dicom-cast/src/Microsoft.Health.DicomCast.Core/Features/Fhir/FhirTransactionExecutor.cs [82:122]

32 lines of code
9 McCabe index (conditional complexity)


        private static HttpStatusCode ValidateBundleEntryAndGetStatusCode(Bundle.EntryComponent entry, int entryIndex)
        {
            if (entry == null)
            {
                throw new InvalidFhirResponseException(
                    string.Format(CultureInfo.InvariantCulture, DicomCastCoreResource.MissingBundleEntry, entryIndex));
            }

            if (entry.Response == null)
            {
                throw new InvalidFhirResponseException(
                    string.Format(CultureInfo.InvariantCulture, DicomCastCoreResource.MissingBundleEntryResponse, entryIndex));
            }

            if (entry.Response.Status == null)
            {
                throw new InvalidFhirResponseException(
                    string.Format(CultureInfo.InvariantCulture, DicomCastCoreResource.MissingBundleEntryResponseStatus, entryIndex));
            }

            ReadOnlySpan<char> statusSpan = entry.Response.Status.AsSpan();

            // Based on the spec (http://hl7.org/fhir/R4/bundle-definitions.html#Bundle.entry.response.status),
            // the status should be starting with 3 digit HTTP code and may contain the HTTP description associated
            // with the status code.
            if (statusSpan.Length < 3 ||
                (statusSpan.Length > 3 && statusSpan[3] != ' ') ||
                !Enum.TryParse(statusSpan.Slice(0, 3).ToString(), out HttpStatusCode parsedStatusCode))
            {
                throw new InvalidFhirResponseException(
                    string.Format(CultureInfo.InvariantCulture, DicomCastCoreResource.InvalidBundleEntryResponseStatus, entry.Response.Status, entryIndex));
            }

            if ((int)parsedStatusCode < 200 || (int)parsedStatusCode >= 300)
            {
                throw new InvalidFhirResponseException(
                    string.Format(CultureInfo.InvariantCulture, DicomCastCoreResource.MismatchTransactionStatusCode, entry.Response.Status, entryIndex));
            }

            return parsedStatusCode;
        }