static HandlerErrorCode translateExceptionToErrorCode()

in aws-iot-dimension/src/main/java/com/amazonaws/iot/dimension/Translator.java [42:79]
25 lines of code
10 McCabe index (conditional complexity)

    static HandlerErrorCode translateExceptionToErrorCode(Exception e, Logger logger) {

        logger.log(String.format("Translating exception \"%s\", stack trace: %s",
                e.getMessage(), ExceptionUtils.getStackTrace(e)));

        // We're handling all the exceptions documented in API docs
        // https://docs.aws.amazon.com/iot/latest/apireference/API_CreateSecurityProfile.html
        // (+similar pages for other APIs)
        // For Throttling and InternalFailure, we want CFN to retry, and it will do so based on the error code.
        // Reference with Retriable/Terminal in comments for each: https://tinyurl.com/y378qdno
        if (e instanceof ResourceAlreadyExistsException) {
            // Note regarding idempotency:
            // CreateSecurityProfile API allows tags. CFN attaches its own stack level tags with the request. If a
            // SecurityProfile is created out of band and then the same request is sent via CFN, the API will throw
            // AlreadyExists because the CFN request will contain the stack level tags.
            // This behavior satisfies the CreateHandler contract.
            return HandlerErrorCode.AlreadyExists;
        } else if (e instanceof InvalidRequestException) {
            return HandlerErrorCode.InvalidRequest;
        } else if (e instanceof LimitExceededException) {
            return HandlerErrorCode.ServiceLimitExceeded;
        } else if (e instanceof UnauthorizedException) {
            return HandlerErrorCode.AccessDenied;
        } else if (e instanceof InternalFailureException) {
            return HandlerErrorCode.InternalFailure;
        } else if (e instanceof ThrottlingException) {
            return HandlerErrorCode.Throttling;
        } else if (e instanceof ResourceNotFoundException) {
            return HandlerErrorCode.NotFound;
        } else if (e instanceof IotException && ((IotException) e).statusCode() == 403) {
            return HandlerErrorCode.AccessDenied;
        } else {
            logger.log(String.format("Unexpected exception \"%s\", stack trace: %s",
                    e.getMessage(), ExceptionUtils.getStackTrace(e)));
            // Any other exception at this point is unexpected.
            return HandlerErrorCode.InternalFailure;
        }
    }