ValidationResponse response = new ApplicationValidationResponse();
// ID
if (StringUtils.isBlank(cfg.getId())) {
response.addValidationError(new ValidationMessage("id", "Repository ID must not be blank!"));
}
else if (!cfg.getId().matches(REPOSITORY_ID_PATTERN)) {
response.addValidationError(new ValidationMessage("id",
"Only letters, digits, underscores, hyphens, and dots are allowed in Repository ID"));
}