Ryan, In Apache NiFi we have a ConvertAvroToOrc processor [1], you may find code there that you can use in your Java program (take a look at line 212 and down). We had to create our own OrcFileWriter because the one in Apache ORC writes to a FileSystem where we needed to write to our own FlowFile component. But all the relevant code should be there (you can replace the createWriter() call with the normal ORC one); one caveat is that it's for Apache Hive 1.2, you may need to make changes if you're using Hive 3 libraries for example.
Regards, Matt [1] https://github.com/apache/nifi/blob/main/nifi-nar-bundles/nifi-hive-bundle/nifi-hive-processors/src/main/java/org/apache/nifi/processors/hive/ConvertAvroToORC.java On Wed, Jul 15, 2020 at 4:51 PM Ryan Schachte <coderyanschac...@gmail.com> wrote: > > I'm writing a standalone Java process and interested in converting the > consumed Avro messages to ORC. I've seen a plethora of examples of writing > to ORC, but the conversion to ORC from Avro is what I can't seem to find a > lot of examples of. > > This is just a standard Java process running inside of a container.