hunyadi-dev commented on a change in pull request #821: URL: https://github.com/apache/nifi-minifi-cpp/pull/821#discussion_r454397770
########## File path: libminifi/include/core/PropertyValidation.h ########## @@ -259,6 +259,22 @@ class UnsignedLongValidator : public PropertyValidator { } }; +class NonBlankValidator : public PropertyValidator { + public: + explicit NonBlankValidator(const std::string& name) + : PropertyValidator(name) { + } + ~NonBlankValidator() override = default; + + ValidationResult validate(const std::string& subject, const std::shared_ptr<minifi::state::response::Value>& input) const final { + return validate(subject, input->getStringValue()); Review comment: I thought yaml parsing ignored padding, so ```yaml name: A ``` was the same as ```yaml name: A ``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org