In general, if your processor uses a controller service then the processors pom file needs a provided dependency on the API of the CS, and your NAR pom needs a NAR dependency on the NAR where the CS API is.
Example is shown here in the section linking processors and controller services - https://cwiki.apache.org/confluence/display/NIFI/Maven+Projects+for+Extensions Also, you do not want to include NiFI's standard processors in your own NAR, this will result in two copies of every standard processor. You will want to copy whatever code you need into your own NAR. In you last statement, if you made a new processor in nifi-standard-processors and it didn't show up, it is most likely because you didn't update META-INF/services file to include the new processor. On Tue, Oct 16, 2018 at 9:36 AM John McGinn <amruginn-n...@yahoo.com.invalid> wrote: > > Ok, I am far from a maven expert, and am struggling on this problem. > > I created a new project using the maven generate process, and compiled that > sample processor and everything was fine, and I could see it in my local NiFi > instance. I then copied over the Wait processor on top of the > MyProcessor.java class, changed the package name, and the class name, and > attempted to compile. Got errors due to dependency issues. This is where I > get confused. > > In the processor directory, I modify the pom.xml with a dependency line for > nifi-api, nifi-utils, nifi-distribute-cache-client-service-api and > nifi-standard-processors. This seemed to make things work, and I get a 33 meg > NAR file, which contains lots of JARs. I load that up, and I get a problem > with CalculateStats, or similar, because of RecordReaderFactory. I go back in > and include nifi-record-serialization-services, and it compiles, and the JAR > is included in the NAR file now, and I still get class not found. > > I've also tried to change the dependencies to a status of provided, and > therefore get a minimal 25k or so NAR file with no JARs included. I get the > same issue with the class not found. > > I had also attempted to copy Wait.java to AnotherWait.java within the > actually NiFi source code, and it compiles, and shows up in the JARs and NARs > as I'd expect, but I cannot get to it within my NiFi instance. > > Can someone let me know what I'm doing wrong. > > Thanks, > John McGinn
