Hi Barry, On Wed, 2011-10-05 at 19:49 -0400, Barry Hathaway wrote: > Dave, > > Thanks for sending the pom files along. I built and installed the arq > bundle as you suggested. > For the jena one, I removed the Xerces embedded dependency since it is > available in one > of the standard ServiceMix bundles (also log4j and slf4j). When I tried > to use the bundle > I received the same message as below: > DTDDVFactoryImpl does not extend from DTDDVFactory > > Is there a specific reason for embedding Xerces into the Jena bundle?
Jena uses some of the XSD data type handling machinery from Xerces whose interface has been less stable than the normal parsing interface. This should only affect you if your environment has a *very* old Xerces in it or is selectively hiding some of the Xerces packages. Whichever is the case I recommend you put Xerces back into the Jena bundle to avoid that environment dependency. Cheers, Dave > Thanks. > > Barry > > On 9/29/2011 4:13 AM, Dave Reynolds wrote: > > On Wed, 2011-09-28 at 18:49 -0400, Barry Hathaway wrote: > >> I'm not having any luck getting Jena to work in an OGSi environment > >> (ServiceMix). > > We've used Jena extensively in an OSGi environment though not > > ServiceMix. > > > >> I've tried "wrap"ping the Jena jars into separate bundles. I've also > >> built the bundles with > >> maven-bundle-plugin. Then when I try: > >> Model m = ModelFactory.createMemModelMaker().createFreshModel(); > >> I get: > >> DTDDVFactoryImpl does not extend from DTDDVFactory > > Those classes are from Xerces. Check how you have specified that > > dependency, maybe ServiceMix has a very old Xerces which is being > > incorrectly bound to the bundle. > > > >> I have also tried building a single bundle which includes all the > >> imported jars using the > >> pom.xml file from the Clerezza project. This bundle also starts up, but > >> this time when > >> I execute the model factory command above I get: > >> nested exception is java.lang.ExceptionInInitializerError > > > > The approach we've used is similar to this - include most of the > > dependent jars in the bundle to simplify dependency management. We > > package as three bundles - jena, arq and tdb. > > > > In case it helps I've attached pom files for core and arq bundle > > projects we use. > > > > [In an ideal world I'd like to ship self-contained bundles like this > > from Apache Jena, though the complexities of the Apache and Maven > > conventions put me off trying this in the near term.] > > > > Dave > > >
