public void TranslateException(Exception exception, ref HttpStatusCode responseStatus, ref HttpExceptionData responseData)
{
if (exception is AggregateException)
{
exception = ExceptionUtils.GetInnerException(exception);
}
responseData.Message = Strings.HttpExceptionDefaultMessage;
responseData.SetFromException(exception);
if (exception is IBusinessException)
{
responseStatus = HttpStatusCode.PreconditionFailed;
responseData.Message = exception.Message;
}
else if (exception is JsonBindingException)
{
responseStatus = HttpStatusCode.BadRequest;
responseData.Message = Strings.MalformedRequestData;
responseData.SetFromException(exception.InnerException);
}
else
{
string message = null;
Exception newException = null;
foreach (var t in customTranslators)
{
if (t.TranslateException(exception, out message, out newException))
{
responseData.Message = message;
responseData.SetFromException(newException);
exception = newException;
break;
}
}
}
if (exception is IHttpStatusCodeException)
{
responseStatus = (exception as IHttpStatusCodeException).GetStatusCode();
}
if (exception is IDataException)
{
responseData.ErrorData = (exception as IDataException).GetExceptionData();
}
}
public bool TranslateException(Exception exception, out string message, out Exception newException)
{
message = exception.Message;
newException = exception;
if (exception is ProviderIncompatibleException)
{
message = Strings.DbConnectionError;
return(true);
}
if (exception is EntityCommandExecutionException)
{
message = Strings.DbCommandExecutionError;
return(true);
}
if (exception is DbEntityValidationException)
{
ValidationRuleViolations violations = new ValidationRuleViolations();
violations.Add((exception as DbEntityValidationException).EntityValidationErrors);
message = Strings.DbValidationError;
newException = new DbWrappedException(message, exception, violations);
return(true);
}
if (exception is DbUpdateException || exception is SqlException)
{
message = Strings.DbUpdateError;
newException = ExceptionUtils.GetInnerException(exception);
foreach (var regex in Strings.ConstraintRegexes)
{
if (regex.IsMatch(newException.Message))
{
string constraintName = regex.Matches(newException.Message)[0].Groups["cName"].ToString();
string constraintMessage = GetConstraintMessage(constraintName);
if (constraintMessage != null)
{
message = constraintMessage;
}
}
}
return(true);
}
return(false);
}