Hi all, Hope this email finds you safe and well during these crazy times.
I have a need to work with some TRIG files. Since I've become so used to doing my development work in TBC, I'd very much like to find a way to work with them. Searching this list and the web, I don't get the feeling that there are many options but I thought it would be worth asking. One idea I had is to try and import a TRIG file into a Jena TDB (using Import->Import RDF Files into new TDB) but this results in an exception from deep within Jena (see below). This happens with any of the examples from the TRIG spec. Running on 6.3.0. I'm curious what other approaches I might want to investigate. My ultimate goal is running SPARQL queries across the named graphs defined in the TRIG files. --- Reason: java.lang.NullPointerException at org.apache.jena.ext.com.google.common.base.Preconditions.checkNotNull(Preconditions.java:882) at org.apache.jena.ext.com.google.common.cache.LocalCache.getIfPresent(LocalCache.java:3948) at org.apache.jena.ext.com.google.common.cache.LocalCache$LocalManualCache.getIfPresent(LocalCache.java:4859) at org.apache.jena.atlas.lib.cache.CacheGuava.containsKey(CacheGuava.java:81) at org.apache.jena.atlas.lib.cache.CacheSetImpl.contains(CacheSetImpl.java:72) at org.apache.jena.tdb.store.nodetable.NodeTableCache.cacheLookup(NodeTableCache.java:176) at org.apache.jena.tdb.store.nodetable.NodeTableCache._idForNode(NodeTableCache.java:141) at org.apache.jena.tdb.store.nodetable.NodeTableCache.getAllocateNodeId(NodeTableCache.java:91) at org.apache.jena.tdb.store.nodetable.NodeTableWrapper.getAllocateNodeId(NodeTableWrapper.java:40) at org.apache.jena.tdb.store.nodetable.NodeTableInline.getAllocateNodeId(NodeTableInline.java:51) at org.apache.jena.tdb.store.nodetupletable.NodeTupleTableConcrete.addRow(NodeTupleTableConcrete.java:85) at org.apache.jena.tdb.store.bulkloader.LoaderNodeTupleTable.load(LoaderNodeTupleTable.java:106) at org.topbraidcomposer.tdb.wizards.loader.Loader$StreamRDF_TDBLoad.quad(Loader.java:172) at org.apache.jena.riot.lang.LangTriG.emit(LangTriG.java:266) at org.apache.jena.riot.lang.LangTurtleBase.emitTriple(LangTurtleBase.java:486) at org.apache.jena.riot.lang.LangTurtleBase.objectList(LangTurtleBase.java:352) at org.apache.jena.riot.lang.LangTurtleBase.predicateObjectItem(LangTurtleBase.java:288) at org.apache.jena.riot.lang.LangTurtleBase.predicateObjectList(LangTurtleBase.java:269) at org.apache.jena.riot.lang.LangTurtleBase.triples(LangTurtleBase.java:250) at org.apache.jena.riot.lang.LangTurtleBase.triplesSameSubject(LangTurtleBase.java:191) at org.apache.jena.riot.lang.LangTriG.bracedGraph(LangTriG.java:213) at org.apache.jena.riot.lang.LangTriG.oneNamedGraphBlock2(LangTriG.java:137) at org.apache.jena.riot.lang.LangTriG.oneTopLevelElement(LangTriG.java:49) at org.apache.jena.riot.lang.LangTurtleBase.runParser(LangTurtleBase.java:91) at org.apache.jena.riot.lang.LangBase.parse(LangBase.java:41) at org.apache.jena.riot.RDFParserRegistry$ReaderRIOTLang.read(RDFParserRegistry.java:191) at org.apache.jena.riot.RDFParser.read(RDFParser.java:352) at org.apache.jena.riot.RDFParser.parseNotUri(RDFParser.java:342) at org.apache.jena.riot.RDFParser.parse(RDFParser.java:291) at org.apache.jena.riot.RDFParserBuilder.parse(RDFParserBuilder.java:506) at org.apache.jena.riot.RDFDataMgr.parseFromInputStream(RDFDataMgr.java:870) at org.apache.jena.riot.RDFDataMgr.parse(RDFDataMgr.java:693) at org.topbraidcomposer.tdb.wizards.loader.Loader.loadFromFiles(Loader.java:107) at org.topbraidcomposer.tdb.wizards.loader.TDBLoaderWizard$1.run(TDBLoaderWizard.java:76) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119) Take care, Adam -- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to topbraid-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/topbraid-users/2bd9ccac-0c8d-46d6-af30-58efd11e0a9a%40googlegroups.com.
