Karaf (the OSGi container underlying ServiceMix) is able to resolve transitive
dependencies using its “features” system[1], but that kind of resolution is not
an inherent ability of OSGi frameworks, it’s specific to Karaf. The OSGi
metadata in the Jena bundle just explains what other dependencies exist, not
where or how to resolve them. It’s the Maven metadata that explains that, and
it’s the fact that Karaf’s “features” system can take advantage of both OSGi
metadata and Maven metadata that allows it to solve this kind of problem.
However, you can manually install bundles for those other dependencies (and
Jena’s Maven metadata should give you some good information about what they
are). You can also use a Karaf feature file to try to do that automatically.
Apache Clerezza has done some of that work so you may want to check with them
to see what they have available, e.g. [2].
[1] https://karaf.apache.org/manual/latest/users-guide/provisioning.html
[2] https://github.com/apache/clerezza/blob/master/provisioning/rdf/pom.xml
---
A. Soroka
The University of Virginia Library
> On Jan 7, 2016, at 1:46 PM, Robson, Alan wrote:
>
> Hi all,
>
> I'm trying to use jena in servicemix (an apache OSGI-based system) by using
> the jena-osgi bundle...
>
> I can - apparently, install the pre-made bundle from maven...
>
> karaf@root()> bundle:install mvn:org.apache.jena/jena-osgi/3.0.1
> Bundle ID: 238
>
> I can install one of my own bundles (actually one that I adapted from
> http://kevinboone.net/osgitest.html) to satisfy a dependency I have
>
> karaf@root()> feature:install examples-vbb-tick
> Tick bundle started
>
> I can then install my new custom feature.
>
> karaf@root()> feature:install examples-vbb-zooby
>
>
> This all worked until I added code in the zooby bundle to access Jena - I
> copied in some code snipped from
> https://github.com/castagna/jena-examples/blob/master/src/main/java/org/apache/jena/examples/ExampleAPI_02.java
>
> All of a sudden, since I added the jena code and started using the OSGI jena
> bundle I have lots of unresolved dependencies... I believe that all bar one
> of these is a dependency of the jena-osgi bundle I downloaded.
>
> Is anyone else seeing these dependency problems ? How did you fix them ?...
>
> Error executing command: Can't install feature examples-vbb-zooby/0.0.0:
> Can not resolve feature:
> Unsatisfied requirement(s):
> ---
>
> package:(&(package=org.apache.http.client.methods)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.http.protocol)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
> package:(&(package=org.apache.http.entity))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.http.impl.client)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
> package:(&(package=org.apache.http.util)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
> package:(&(package=org.apache.http.conn)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.http.message)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.thrift.protocol)(version>=0.9.0)(!(version>=1.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.thrift.meta_data)(version>=0.9.0)(!(version>=1.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.http.conn.scheme)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
> package:(&(package=org.apache.http))
> Apache Jena - OSGi bundle
>
> package:(&(package=com.github.jsonldjava.utils)(version>=0.7.0)(!(version>=1.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.http.params)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.commons.lang3.time)(version>=3.3.0)(!(version>=4.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.http.client.utils)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.commons.cli)(version>=1.3.0)(!(version>=2.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.thrift.scheme)(version>=0.9.0)(!(version>=1.0.0)))
> Apache Jena - OSGi bundle
> package:(&(package=org.apache.http.auth)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
> package:(&(package=org.apache.thrift)(version>=0.9.0)(!(version>=1.0.0)))
> Apache Jena - OSGi bundle
> package:(&(package=com.github.andrewoma.dexx.collection))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.thrift.transport)(version>=0.9.0)(!(version>=1.0.0)))
> Apache Jena - OSGi bundle
>
> package:(&(package=org.apache.http.client)(version>=4.2.0)(!(version>=5.0.0)))
> Apache Jena - OSGi bundle
