public override async Task BeginCreateInstanceIndexAsync()

in src/Microsoft.Health.Dicom.SqlServer/Features/Store/SqlIndexDataStoreV3.cs [39:93]
50 lines of code
4 McCabe index (conditional complexity)

        public override async Task<long> BeginCreateInstanceIndexAsync(int partitionKey, DicomDataset instance, IEnumerable<QueryTag> queryTags, CancellationToken cancellationToken)
        {
            EnsureArg.IsNotNull(instance, nameof(instance));
            EnsureArg.IsNotNull(queryTags, nameof(queryTags));

            using (SqlConnectionWrapper sqlConnectionWrapper = await SqlConnectionWrapperFactory.ObtainSqlConnectionWrapperAsync(cancellationToken))
            using (SqlCommandWrapper sqlCommandWrapper = sqlConnectionWrapper.CreateSqlCommand())
            {
                var rows = ExtendedQueryTagDataRowsBuilder.Build(instance, queryTags.Where(tag => tag.IsExtendedQueryTag), Version);
                V3.AddInstanceTableValuedParameters parameters = new V3.AddInstanceTableValuedParameters(
                    rows.StringRows,
                    rows.LongRows,
                    rows.DoubleRows,
                    rows.DateTimeRows,
                    rows.PersonNameRows
                );

                V3.AddInstance.PopulateCommand(
                    sqlCommandWrapper,
                    instance.GetString(DicomTag.StudyInstanceUID),
                    instance.GetString(DicomTag.SeriesInstanceUID),
                    instance.GetString(DicomTag.SOPInstanceUID),
                    instance.GetSingleValueOrDefault<string>(DicomTag.PatientID),
                    instance.GetSingleValueOrDefault<string>(DicomTag.PatientName),
                    instance.GetSingleValueOrDefault<string>(DicomTag.ReferringPhysicianName),
                    instance.GetStringDateAsDate(DicomTag.StudyDate),
                    instance.GetSingleValueOrDefault<string>(DicomTag.StudyDescription),
                    instance.GetSingleValueOrDefault<string>(DicomTag.AccessionNumber),
                    instance.GetSingleValueOrDefault<string>(DicomTag.Modality),
                    instance.GetStringDateAsDate(DicomTag.PerformedProcedureStepStartDate),
                    instance.GetStringDateAsDate(DicomTag.PatientBirthDate),
                    instance.GetSingleValueOrDefault<string>(DicomTag.ManufacturerModelName),
                    (byte)IndexStatus.Creating,
                    parameters);

                try
                {
                    return (long)(await sqlCommandWrapper.ExecuteScalarAsync(cancellationToken));
                }
                catch (SqlException ex)
                {
                    if (ex.Number == SqlErrorCodes.Conflict)
                    {
                        if (ex.State == (byte)IndexStatus.Creating)
                        {
                            throw new PendingInstanceException();
                        }

                        throw new InstanceAlreadyExistsException();
                    }

                    throw new DataStoreException(ex);
                }
            }
        }