Hello, Regarding bundling the WAR, take a look at the update attribute NAR. If you look at the expanded NAR after starting NiFi, it is located at "work/nar/extensions/nifi-update-attribute-nar-1.16.0-SNAPSHOT.nar-unpacked/NAR-INF/bundled-dependencies" you will see inside there is a ".war", so you will want a similar setup where you build a WAR for your custom UI and it ends up inside your packaged NAR.
Regarding the Maven error, we would need to see a stacktrace for the error. It may already be further up in the Maven output, or you could run with -X to get much more detailed output. Thanks, Bryan On Wed, Feb 9, 2022 at 8:24 AM Shun Jie Tan <shunjie....@data4life-asia.care> wrote: > > Hi, > > I have made some updates to my repository. Apparently I need to include the > version for my dependencies, now 'mvn clean install' builds successfully > for nifi-MapperUI-bundle and I copy-paste the nar file into my local niifi > lib folder. But the advanced button doesn't appear when I create the > MapperUI processor. What am I missing? > > As for nifi-MapperUIver1-bundle, there is a new error when I try to run > 'mvn clean install'. This is the error it shows. > > [*ERROR*] Failed to execute goal > org.apache.nifi:nifi-nar-maven-plugin:1.3.2:nar *(default-nar)* on project > nifi-MapperUIver1-nar: *Failed to create Extension Documentation*: Failed > to create Extension Definition for PROCESSOR > org.apache.nifi.processors.MapperUIver1.MyProcessor -> *[Help 1]* > > I'm trying to figure out what is the cause of this error. Please advise me > on how to fix this. Thank you. > > > Best regards, > > Shun Jie > > > > On Wed, Feb 9, 2022 at 1:08 PM Shun Jie Tan <shunjie....@data4life-asia.care> > wrote: > > > Hello, > > > > I'm trying to create a custom processor with a custom UI that will appear > > when the advanced button is clicked similar to UpdateAttribute and > > JoltTransformJSON processors. > > > > The first step that I want to achieve is to have the advanced button > > appear on my custom processor and display some simple text on the iframe > > when clicked as a prototype. Using NiFi I installed locally to test out the > > prototype for now. > > > > The current difficulty I'm facing is setting up the dynamic web project as > > I'm not sure what is the right way to do it. Is there a maven archetype to > > use for creating the custom UI? > > > > I have tried 2 ways to create my bundle. > > First, I generated the nifi-processor-bundle-archetype using command line > > and I created the dynamic web project separately using Eclipse IDE, > > adding a pom.xml to it then copy-paste it into the > > nifi-processor-bundle-archetype project bundle. > > > > For the second way, I created the nifi-processor-bundle-archetype project > > in Eclipse IDE and added the dynamic web project directly into the project > > bundle then, converting the dynamic web project into a maven project. > > > > Both of the projects produce 'jar is missing' error for some dependencies > > when I run the 'mvn clean install' command. I had done 'maven > update > > project' for the second project but the error still persists. > > > > I have seen the nifi documentation, > > https://docs.cloudera.com/cfm/2.1.1/nifi-dev-guide/topics/nifi-custom-processor-uis.html, > > for creating custom UI but I don't quite get the part where it says to > > bundle the WAR file into a processor NAR. > > > > From NiFi's github repository, I see the structure for the > > nifi-update-attribute-bundle contains the nifi-update-attribute-ui folder > > so the bundling of the WAR file doesn't make sense to me. > > > > I have pushed my progress onto my github repository, > > https://github.com/shunjie-t/nifi-custom-processor, for your reference. > > Please guide me on how to set up the custom UI. Thank you. > > > > Best regards, > > Shun Jie > >
