How to use

ValidationException

in

colesico.framework.validation

protected void handleValidationError(ValidationException ex, int httpCode, HttpContext context) {
  String errMsg = MessageFormat.format("Restlet validation error: {0}", ExceptionUtils.getRootCauseMessage(ex));
  log.error(errMsg);
  RestletErrorResponse response = new RestletErrorResponse(context.getRequest().getRequestURI(), httpCode, ex.getIssue());
  restletDataPort.sendError(response, httpCode);
}

/**
 * Validates the value. Throws exception if validation errors occurred
 *
 * @param value
 * @throws ValidationException if some validation errors occurred
 */
@Override
public void accept(V value) throws ValidationException {
  ValidationContext<V> context = ValidationContext.ofRoot(rootSubject, value);
  rootCommand.execute(context);
  ValidationIssue issue = context.toIssue();
  if (issue != null) {
    throw new ValidationException(issue);
  }
}

public static Notice error(Exception ex) {
  if (ex instanceof ValidationException) {
    return new Notice(Type.ERROR, ((ValidationException) ex).getIssue());
  }
  if (ex instanceof ApplicationException) {
    return new Notice(Type.ERROR, ex.getMessage());
  }
  return new Notice(Type.ERROR, ExceptionUtils.getRootCauseMessage(ex));
}