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Date: Thu, 7 Sep 2017 09:22:09 +0100 (BST)
From: tom@quarendon.net
Reply-To: tom@quarendon.net
To: user@karaf.apache.org
Message-ID: <477167559.3315003.1504772529603@webmail.123-reg.co.uk>
In-Reply-To: <3e08155a-bd63-67a4-4825-24b8d5746854@nanthrax.net>
References: <871074778.3313754.1504771579747@webmail.123-reg.co.uk>
 <3e08155a-bd63-67a4-4825-24b8d5746854@nanthrax.net>
Subject: Re: Creating a karaf feature containing a karaf shell command
 breaks karaf
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archived-at: Thu, 07 Sep 2017 08:22:19 -0000

There's a complete example here:
https://github.com/tomq42/karaf-command-feature

Thanks.

> On 07 September 2017 at 09:15 Jean-Baptiste Onofr=C3=A9 <jb@nanthrax.net>=
 wrote:
>=20
>=20
> Hi Tom,
>=20
> can you share the pom.xml you use to create your custom distro ?
>=20
> It looks like some resources are missing in the distro.
>=20
> Regards
> JB
>=20
> On 09/07/2017 10:06 AM, tom@quarendon.net wrote:
> > Clearly this can't be true, since karaf ships with features containing =
bundles containing commands, but I can't get it to work.
> >=20
> > I've created a simple karaf shell command, following the tutorial in th=
e documentation. As per the example, it just says "hello world".
> > If I build that as an isolated bundle, install it into karaf and run it=
, it works, as per the documentation.
> >=20
> > What I'm trying to do though is build that into a feature to include in=
to a custom karaf distribution.
> > I can build the feature, and I can manually install the feature into a =
karaf distribution, and it works OK, I can run the resulting command.
> > I can build the karaf distribution containing the feature OK, but when =
I then run the resulting karaf then fails to initialise properly.
> >=20
> >=20
> > In the log file, I get:
> > Adding features:
> > Changes to perform:
> > Region: root
> > Bundles to install:
> > ...
> > mvn:org.apache.karaf.shell/org.apache.karaf.shell.console/4.1.2
> > null <-- This is clearly bad
> > mvn:org.apache.karaf.shell/org.apache.karaf.shell.ssh/4.1.2
> > ...
> >=20
> > Installing bundles:
> > ...
> > null <-- This is the same null as before and causes the problem below.
> > Error installing boot features
> > java.lang.IllegalStateException: Resource has no uri
> > =09at org.apache.karaf.features.internal.service.Deployer.getBundleInpu=
tStream(Deployer.java:1460) [10:org.apache.karaf.features.core:4.1.2]
> > =09at org.apache.karaf.features.internal.service.Deployer.deploy(Deploy=
er.java:766) [10:org.apache.karaf.features.core:4.1.2]
> > =09at org.apache.karaf.features.internal.service.FeaturesServiceImpl.do=
Provision(FeaturesServiceImpl.java:1233) [10:org.apache.karaf.features.core=
:4.1.2]
> > =09at org.apache.karaf.features.internal.service.FeaturesServiceImpl.la=
mbda$doProvisionInThread$0(FeaturesServiceImpl.java:1132) [10:org.apache.ka=
raf.features.core:4.1.2]
> > =09at org.apache.karaf.features.internal.service.FeaturesServiceImpl$$L=
ambda$15/951619949.call(Unknown Source) [10:org.apache.karaf.features.core:=
4.1.2]
> > =09at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:?]
> > =09at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecu=
tor.java:1142) [?:?]
> > =09at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExec=
utor.java:617) [?:?]
> >=20
> > The console then goes funny, and you get:
> > Error in initialization script: etc\shell.init.script: String index out=
 of range: 0
> > which I'm assuming is a knockon issue.
> >=20
> > I've got no idea where this "null" bundle is coming from, but it's clea=
rly causing the karaf initialisation to go wrong.
> >=20
> > I have created an example project at https://github.com/tomq42/karaf-co=
mmand-feature which I hope shows the problem.
> > Just build with maven, then run the karaf-distro\target\assembly\bin\ka=
raf(.bat) command. You should see the error above on the console, and the e=
rror in the log.
> >=20
> > Any insight would be very welcome.
> > Thanks.
> >=20
>=20
> --=20
> Jean-Baptiste Onofr=C3=A9
> jbonofre@apache.org
> http://blog.nanthrax.net
> Talend - http://www.talend.com