file_path_list = [os.path.join(sample.analysis.directory or '', file_name) for file_name in sample.status_files_upload.keys()]
max_timeout = time() + Sample.TIMEOUT_SEG
files_ready = lambda files: all([base_handler.exists_dir(file_path) for file_path in files])

while not files_ready(file_path_list) and time() < max_timeout:
    sleep(60)  # espera 1 minuto antes de testar de novo

if not files_ready(file_path_list):
    celery_logger.info('[!] Sample files not found')
    sample.status = Sample.STATUS_TYPE.ERROR.value
    sample.save(update_fields=['status'])
    raise Exception('[!] Sample files not found')

# SEM ELSE!!
# ...
sample.execute()