matthieun commented on code in PR #988: URL: https://github.com/apache/parquet-mr/pull/988#discussion_r952835674
########## parquet-protobuf/src/main/java/org/apache/parquet/proto/ProtoSchemaConverter.java: ########## @@ -79,12 +80,20 @@ public MessageType convert(Class<? extends Message> protobufClass) { } /* Iterates over list of fields. **/ - private <T> GroupBuilder<T> convertFields(GroupBuilder<T> groupBuilder, List<FieldDescriptor> fieldDescriptors) { + private <T> GroupBuilder<T> convertFields(GroupBuilder<T> groupBuilder, List<FieldDescriptor> fieldDescriptors, List<String> parentNames) { for (FieldDescriptor fieldDescriptor : fieldDescriptors) { - groupBuilder = - addField(fieldDescriptor, groupBuilder) + final String name = fieldDescriptor.getFullName(); + final List<String> newParentNames = new ArrayList<>(parentNames); + newParentNames.add(name); + if (parentNames.contains(name)) { + // Circular dependency, skip + LOG.warn("Breaking circular dependency:{}{}", System.lineSeparator(), Review Comment: Well, another option would be to add a new configuration setting to allow the user to either have it fail with a good error message, or just silently break the circle like this. However I am not familiar with how `parquet-protobuf` is configured. If I should go that route, I'd appreciate some examples! -- 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. To unsubscribe, e-mail: dev-unsubscr...@parquet.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org