All, Looks like I should be good now. Thanks.
Brandon On Mon, Aug 10, 2015 at 4:39 PM DAVID SMITH <davidrsm...@btinternet.com> wrote: > All > > That certainly cured the problem in my case. > > Dave > > Sent from Yahoo! Mail on Android > > ------------------------------ > * From: * Brandon DeVries <b...@jhu.edu>; > * To: * dev@nifi.apache.org <dev@nifi.apache.org>; > * Subject: * Re: Help required with my custom controller service > * Sent: * Mon, Aug 10, 2015 8:25:58 PM > > Bryan and Mark, > > I suspect that will do it. I'll check tomorrow. > > Brandon > > On Mon, Aug 10, 2015, 4:23 PM Bryan Bende <bbe...@gmail.com> wrote: > > > Not sure if this is helpful, but there is a section about adding > > dependencies on controller services at the end of this wiki page: > > > > > > > https://cwiki.apache.org/confluence/display/NIFI/Maven+Projects+for+Custom+Processors > > > > > > On Monday, August 10, 2015, Mark Payne <marka...@hotmail.com> wrote: > > > > > Brandon, > > > > > > I've seen this occur when I forgot to add a dependency on the > > > ssl-context-service-api-nar in my NAR's pom. > > > > > > You should have something like: > > > <dependency> > > > <groupId>org.apache.nifi</groupId> > > > <artifactId>ssl-context-service-api</artifactId> > > > <version>0.3.0-SNAPSHOT</version> > > > <type>nar</type> > > > </dependency> > > > > > > Is that by chance the issue, or is there something else going on? > > > > > > Thanks > > > -Mark > > > > > > ---------------------------------------- > > > > From: b...@jhu.edu <javascript:;> > > > > Date: Mon, 10 Aug 2015 19:13:50 +0000 > > > > Subject: Re: Help required with my custom controller service > > > > To: dev@nifi.apache.org <javascript:;> > > > > > > > > All, > > > > > > > > Was this ever solved / explained? I'm having a similar issue. If > > there's > > > > a simple answer that I'm missing that would be great... otherwise I > > might > > > > post an example set of NARs somewhere tomorrow. Probably the simplest > > > > question first is, if I want to create a custom processor that uses a > > > > SSLContextService, what dependencies do I need to add where (assuming > > > we're > > > > using the processor NAR archetype)? I've created an example that > > > compiles, > > > > loads in NiFi, and can be dropped on the graph. However, it can not > be > > > > configured to use any currently existing SSLContextService, and any > > that > > > > are created have the same UUID issue described by David. Thoughts? > > > > > > > > Brandon > > > > > > > > > > > > > > > > On Tue, Jul 28, 2015 at 10:50 AM Mark Payne <marka...@hotmail.com > > > <javascript:;>> wrote: > > > > > > > >> Dave, > > > >> > > > >> In addition to the points that Aldrin brought up, are your > > CacheService > > > >> interface > > > >> and StandardCacheService classes in the same NAR? > > > >> > > > >> If they are not in the same NAR, does your NAR for > > StandardCacheService > > > >> have a Maven dependency > > > >> on the NAR that houses CacheService? > > > >> > > > >> Thanks > > > >> -Mark > > > >> > > > >> ---------------------------------------- > > > >>> From: aldrinp...@gmail.com <javascript:;> > > > >>> Date: Mon, 27 Jul 2015 23:26:58 -0400 > > > >>> Subject: Re: Help required with my custom controller service > > > >>> To: dev@nifi.apache.org <javascript:;>; davidrsm...@btinternet.com > > > <javascript:;> > > > >>> > > > >>> Dave, > > > >>> > > > >>> Some quick notes as I work through your setup. > > > >>> > > > >>> Did you create an entry in your > > > >>> NAR's org.apache.nifi.controller.ControllerService file? This would > > be > > > in > > > >>> src/main/resources/META-INF/services directory of your project. It > > > seems > > > >>> like this isn't likely the case, but a point that can sometimes get > > > >>> overlooked. > > > >>> > > > >>> Your accessing of the service property in your processor looks > good. > > > >>> > > > >>> Did you accidentally override > > > AbstractControllerService#getIdentifier()? > > > >>> It seems like this could lead to the error you are seeing, but it > is > > > hard > > > >>> to be sure. > > > >>> > > > >>> If you are able to share more code with us, we can provide some > more > > > >>> pointed assistance. Have you managed to get your processor and > > > controller > > > >>> service running within the test framework [1]? If not, I would > > suggest > > > >>> doing so to cut down on iterations in debugging your problems as > well > > > as > > > >>> providing a means for you to easily step through the code. > > > >>> > > > >>> [1] > > > >> > > http://nifi.apache.org/docs/nifi-docs/html/developer-guide.html#testing > > > >>> > > > >>> On Sun, Jul 26, 2015 at 4:45 PM, DAVID SMITH < > > > davidrsm...@btinternet.com <javascript:;> > > > >>> > > > >>> wrote: > > > >>> > > > >>>> Hi > > > >>>> I have been trying to write a simple Cache Controller Service that > > > uses > > > >> a > > > >>>> Map to hold <String, String> key/value pairs. I am using > > > >>>> nifi-0.1.0-incubating. I have created an Interface called > > CacheService > > > >>>> which extends ControllerService.public interface CacheService > > extends > > > >>>> ControllerService { > > > >>>> > > > >>>> I have created an implementation called StandardCacheService which > > is > > > as > > > >>>> follows: > > > >>>> public class StandardCacheService extends > AbstractControllerService > > > >>>> implements CacheService { > > > >>>> I have compiled the StandardCacheService and created a nar which I > > > have > > > >>>> then put into my NiFi lib directory, my StandardCacheService > > > Controller > > > >>>> Service appears in the Controller services tab of the NiFi Flow > > > Settings > > > >>>> panel, I can edit it and enable it. Also there are no abnormal log > > > >> messages. > > > >>>> However, when I try to configure the CacheService in my test > > > Processor, > > > >>>> again I get no errors but when I cannot see my > StandardCacheService. > > > My > > > >>>> processor has the following snippets to implement the Cache > > > >>>> Service/Controller: > > > >>>> public static final PropertyDescriptor CACHE_SERVICE = new > > > >>>> PropertyDescriptor.Builder() > > > >>>> .name("Cache Service") > > > >>>> .description("The Controller Service to use in order to obtain a > > > >>>> Cache Service") > > > >>>> .required(false) > > > >>>> .identifiesControllerService(CacheService.class) > > > >>>> .build(); > > > >>>> > > > >>>> final CacheService cache = > > > >>>> > > > >> > > > > > > context.getProperty(CACHE_SERVICE).asControllerService(CacheService.class); > > > >>>> > > > >>>> > > > >>>> > > > >>>> > > > >>>> When configuring the processor, the 'Cache Service' drop down > > doesn't > > > >> show > > > >>>> a populated list showing my StandardCacheService, but it does > allow > > me > > > >> to > > > >>>> create a new service, the resulting panel allows me to then select > > > >>>> StandardCacheService. When I select 'create' I get a UUID value in > > the > > > >>>> Value property of the Configure Processor panel. When I then apply > > > this > > > >>>> the processor shows a yellow triangle, when I hover over it I get > > the > > > >>>> following message: > > > >>>> 'Cache Service validated against <UUID> is invalid because Invalid > > > >>>> Controller service <UUID> is not a valid Controller service > > Identifier > > > >> or > > > >>>> does not reference the correct type of Controller service.' > > > >>>> Can you help please > > > >>>> Many thanksDave > > > >>>> > > > >>>> > > > >> > > > > > > > > > > > -- > > Sent from Gmail Mobile > > >
