Hi Holger,

Ahh, Sesame doesn't support Generalized RDF so those cases would need
to be filtered out if they come out of a Jena Model where it is
supported.

Thanks,

Peter

On 24 March 2015 at 11:58, Holger Knublauch <[email protected]> wrote:
> Hi Peter,
>
> I do remember that we introduced a work-around to such a scenario (literal
> as predicate) 3 years ago, by adding
>
>         // Return no results if subject is a Literal or predicate is not a
> URI
>         // (this may happen in SPARQL queries)
>         if(subject instanceof Literal || (predicate != null && !(predicate
> instanceof URI))) {
>             return new NiceIterator<Triple>();
>         }
>
> in the TopBraid RepositoryGraph.graphBaseFind mentioned in the stack trace
> below. At this stage I cannot see how it could possibly still place a
> literal as predicate into an SPO query, so I can only speculate that this
> may be data living on the database.
>
> Thanks
> Holger
>
>
>
>
> On 3/24/2015 9:41, Peter Ansell wrote:
>>
>> Hi Scott,
>>
>> Definitely file a bug with Sesame (and assign to me) if you have
>> testcases where the Rio parsers have bugs.
>>
>> Thanks,
>>
>> Peter
>>
>> On 24 March 2015 at 09:55, Scott Henninger <[email protected]>
>> wrote:
>>>
>>> Hello, Rich; Is it the case that the names of some of your property URIs
>>> start with numbers, such as <http://example.org/4321>?  In the past we
>>> have
>>> found that while this causes no problems in TopBraid and other back-ends,
>>> it
>>> can parse this in Sesame as:
>>>    <http://example.org/> "4321"^^xsd:string
>>>
>>> If you could check whether this is the case, we can take a closer look
>>> for
>>> how to address the problem.
>>>
>>> -- Scott
>>>
>>>
>>> On 3/23/2015 12:15 PM, Rich Keller wrote:
>>>
>>> I am having trouble creating a Sesame 2 repository connection with TBC-SE
>>> v4.6.2. When I establish the connection, I get a popup error window
>>> saying
>>> ‘unexpected error’, but the window is visible only for a second so I
>>> can’t
>>> make out any details. In the log, the following error is reported:
>>>
>>> !ENTRY org.topbraid.eclipsex 4 0 2015-03-23 09:57:03.571
>>> !MESSAGE ERROR [Thread-16] (ParseErrorLogger.java:32) - [Rio fatal]
>>> Illegal
>>> predicate value: "4"^^<http://www.w3.org/2001/XMLSchema#integer> (573510,
>>> -1)
>>>
>>> So apparently a literal is being parsed in the position of a predicate.
>>> The
>>> full log message is below.  I don’t understand what queries TBC sends to
>>> Sesame or exactly what is being parsed when this error appears (in line
>>> 573510, so it seems). This makes it difficult to debug. Any suggestions?
>>>
>>> Thanks,
>>> Rich
>>>
>>> ————————————————————————
>>>
>>> !ENTRY org.topbraid.eclipsex 4 0 2015-03-23 09:57:03.571
>>> !MESSAGE ERROR [Thread-16] (ParseErrorLogger.java:32) - [Rio fatal]
>>> Illegal
>>> predicate value: "4"^^<http://www.w3.org/2001/XMLSchema#integer> (573510,
>>> -1)
>>>
>>>
>>> !ENTRY org.topbraid.sesame2 2 0 2015-03-23 09:57:04.043
>>> !MESSAGE Error reported from Sesame
>>> !STACK 0
>>> org.openrdf.repository.RepositoryException: Malformed query result from
>>> server
>>>      at org.openrdf.http.client.HTTPClient.getRDF(HTTPClient.java:1169)
>>>      at
>>> org.openrdf.http.client.HTTPClient.getStatements(HTTPClient.java:676)
>>>      at
>>>
>>> org.openrdf.repository.http.HTTPRepositoryConnection.exportStatements(HTTPRepositoryConnection.java:283)
>>>      at
>>>
>>> org.openrdf.repository.http.HTTPRepositoryConnection.getStatements(HTTPRepositoryConnection.java:269)
>>>      at
>>>
>>> org.topbraid.sesame2.graph.RepositoryGraph.graphBaseFind(RepositoryGraph.java:95)
>>>      at com.hp.hpl.jena.graph.impl.GraphBase.find(GraphBase.java:268)
>>>      at
>>>
>>> org.topbraid.core.graph.concurrent.ThreadSafeGraph.threadSafeFind(ThreadSafeGraph.java:250)
>>>      at
>>>
>>> org.topbraid.core.graph.concurrent.ThreadSafeGraph.find(ThreadSafeGraph.java:240)
>>>      at
>>> org.topbraid.core.graph.CachingGraph.addToCache(CachingGraph.java:145)
>>>      at
>>>
>>> org.topbraid.core.graph.AbstractCachingGraph.find(AbstractCachingGraph.java:127)
>>>      at
>>>
>>> org.topbraid.core.graph.AbstractCachingGraph.find(AbstractCachingGraph.java:120)
>>>      at
>>>
>>> org.topbraidcomposer.core.registry.TBCCachingGraph.rebuildCache(TBCCachingGraph.java:114)
>>>      at
>>>
>>> org.topbraidcomposer.core.registry.TBCCachingGraph.<init>(TBCCachingGraph.java:46)
>>>      at
>>>
>>> org.topbraidcomposer.editors.utils.AbstractTBCPersonality.createCachingGraph(AbstractTBCPersonality.java:126)
>>>      at org.topbraid.core.io.IO.loadAndRegister(IO.java:322)
>>>      at org.topbraid.core.io.IO.load(IO.java:292)
>>>      at org.topbraidcomposer.core.io.TBCIO.loadModel(TBCIO.java:334)
>>>      at org.topbraidcomposer.core.io.TBCIO.loadModel(TBCIO.java:369)
>>>      at org.topbraidcomposer.core.io.TBCIO$2$1.run(TBCIO.java:420)
>>>      at java.lang.Thread.run(Thread.java:745)
>>> Caused by: org.openrdf.rio.RDFParseException: Illegal predicate value:
>>> "4"^^<http://www.w3.org/2001/XMLSchema#integer> [line 573510]
>>>      at
>>>
>>> org.openrdf.rio.helpers.RDFParserBase.reportFatalError(RDFParserBase.java:525)
>>>      at
>>>
>>> org.openrdf.rio.turtle.TurtleParser.reportFatalError(TurtleParser.java:1107)
>>>      at
>>> org.openrdf.rio.turtle.TurtleParser.parsePredicate(TurtleParser.java:394)
>>>      at
>>>
>>> org.openrdf.rio.turtle.TurtleParser.parsePredicateObjectList(TurtleParser.java:309)
>>>      at
>>> org.openrdf.rio.turtle.TurtleParser.parseTriples(TurtleParser.java:299)
>>>      at org.openrdf.rio.trig.TriGParser.parseGraph(TriGParser.java:142)
>>>      at
>>> org.openrdf.rio.trig.TriGParser.parseStatement(TriGParser.java:89)
>>>      at org.openrdf.rio.turtle.TurtleParser.parse(TurtleParser.java:184)
>>>      at org.openrdf.rio.turtle.TurtleParser.parse(TurtleParser.java:129)
>>>      at org.openrdf.http.client.HTTPClient.getRDF(HTTPClient.java:1163)
>>>      ... 19 more
>>>
>>> !ENTRY org.topbraidcomposer.core 4 0 2015-03-23 09:57:04.547
>>> !MESSAGE Could not load /DW/atmonto.s2r or one of its imports.
>>> The most recent URI was http://<SERVER OMITTED
>>> HERE>/openrdf-sesame/repositories/atm
>>> !STACK 0
>>> java.lang.reflect.InvocationTargetException
>>>      at org.topbraidcomposer.core.io.TBCIO$2.run(TBCIO.java:493)
>>>      at
>>>
>>> org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
>>> Caused by: com.hp.hpl.jena.shared.ClosedException: Sesame reports
>>> org.openrdf.repository.RepositoryException: Malformed query result from
>>> server (See error log for details)
>>>      at
>>>
>>> org.topbraid.sesame2.graph.RepositoryGraph.graphBaseFind(RepositoryGraph.java:100)
>>>      at com.hp.hpl.jena.graph.impl.GraphBase.find(GraphBase.java:268)
>>>      at
>>>
>>> org.topbraid.core.graph.concurrent.ThreadSafeGraph.threadSafeFind(ThreadSafeGraph.java:250)
>>>      at
>>>
>>> org.topbraid.core.graph.concurrent.ThreadSafeGraph.find(ThreadSafeGraph.java:240)
>>>      at
>>> org.topbraid.core.graph.CachingGraph.addToCache(CachingGraph.java:145)
>>>      at
>>>
>>> org.topbraid.core.graph.AbstractCachingGraph.find(AbstractCachingGraph.java:127)
>>>      at
>>>
>>> org.topbraid.core.graph.AbstractCachingGraph.find(AbstractCachingGraph.java:120)
>>>      at
>>>
>>> org.topbraidcomposer.core.registry.TBCCachingGraph.rebuildCache(TBCCachingGraph.java:114)
>>>      at
>>>
>>> org.topbraidcomposer.core.registry.TBCCachingGraph.<init>(TBCCachingGraph.java:46)
>>>      at
>>>
>>> org.topbraidcomposer.editors.utils.AbstractTBCPersonality.createCachingGraph(AbstractTBCPersonality.java:126)
>>>      at org.topbraid.core.io.IO.loadAndRegister(IO.java:322)
>>>      at org.topbraid.core.io.IO.load(IO.java:292)
>>>      at org.topbraidcomposer.core.io.TBCIO.loadModel(TBCIO.java:334)
>>>      at org.topbraidcomposer.core.io.TBCIO.loadModel(TBCIO.java:369)
>>>      at org.topbraidcomposer.core.io.TBCIO$2$1.run(TBCIO.java:420)
>>>      at java.lang.Thread.run(Thread.java:745)
>>> Root exception:
>>> com.hp.hpl.jena.shared.ClosedException: Sesame reports
>>> org.openrdf.repository.RepositoryException: Malformed query result from
>>> server (See error log for details)
>>>      at
>>>
>>> org.topbraid.sesame2.graph.RepositoryGraph.graphBaseFind(RepositoryGraph.java:100)
>>>      at com.hp.hpl.jena.graph.impl.GraphBase.find(GraphBase.java:268)
>>>      at
>>>
>>> org.topbraid.core.graph.concurrent.ThreadSafeGraph.threadSafeFind(ThreadSafeGraph.java:250)
>>>      at
>>>
>>> org.topbraid.core.graph.concurrent.ThreadSafeGraph.find(ThreadSafeGraph.java:240)
>>>      at
>>> org.topbraid.core.graph.CachingGraph.addToCache(CachingGraph.java:145)
>>>      at
>>>
>>> org.topbraid.core.graph.AbstractCachingGraph.find(AbstractCachingGraph.java:127)
>>>      at
>>>
>>> org.topbraid.core.graph.AbstractCachingGraph.find(AbstractCachingGraph.java:120)
>>>      at
>>>
>>> org.topbraidcomposer.core.registry.TBCCachingGraph.rebuildCache(TBCCachingGraph.java:114)
>>>      at
>>>
>>> org.topbraidcomposer.core.registry.TBCCachingGraph.<init>(TBCCachingGraph.java:46)
>>>      at
>>>
>>> org.topbraidcomposer.editors.utils.AbstractTBCPersonality.createCachingGraph(AbstractTBCPersonality.java:126)
>>>      at org.topbraid.core.io.IO.loadAndRegister(IO.java:322)
>>>      at org.topbraid.core.io.IO.load(IO.java:292)
>>>      at org.topbraidcomposer.core.io.TBCIO.loadModel(TBCIO.java:334)
>>>      at org.topbraidcomposer.core.io.TBCIO.loadModel(TBCIO.java:369)
>>>      at org.topbraidcomposer.core.io.TBCIO$2$1.run(TBCIO.java:420)
>>>      at java.lang.Thread.run(Thread.java:745)
>>>
>>>
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