Strange SPIN behavior

[Leonard Jacuzzo]

Dear List,

 

This morning I went to run a SMS that I have run several times in the past, but this time I get a strange error.

The SMS hangs up on a Apply SPIN module...When I attempt to rund SPIN in the model where the rules reside, I get no inference results.

 

Here is the error log.  Any thoughts?  LFJ

 

eclipse.buildId=unknown
java.version=1.6.0_26
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments:  -os win32 -ws win32 -arch x86

This is a continuation of log file C:\Documents and Settings\ljacuzzo\TBCMEWorkspace\.metadata\.bak_0.log
Created Time: 2012-10-23 11:37:42.971

Error
Tue Oct 23 11:40:14 EDT 2012
Could not execute SPARQLMotion script

java.lang.reflect.InvocationTargetException
 at org.topbraidcomposer.sparqlmotion.actions.AbstractExecuteSPARQLMotionAction$1.run(AbstractExecuteSPARQLMotionAction.java:153)
 at org.topbraidcomposer.core.util.ThreadUtil$1$1.run(ThreadUtil.java:64)
 at java.lang.Thread.run(Unknown Source)
Caused by: com.hp.hpl.jena.query.QueryParseException: BIND: Variable used when already in-scope: ?BooleanValue in BIND(true AS ?BooleanValue)
 at com.hp.hpl.jena.sparql.lang.SyntaxVarScope$ScopeChecker.check(SyntaxVarScope.java:286)
 at com.hp.hpl.jena.sparql.lang.SyntaxVarScope$ScopeChecker.visit(SyntaxVarScope.java:262)
 at com.hp.hpl.jena.sparql.syntax.ElementWalker$Walker.visit(ElementWalker.java:100)
 at com.hp.hpl.jena.sparql.syntax.ElementGroup.visit(ElementGroup.java:113)
 at com.hp.hpl.jena.sparql.syntax.ElementWalker.walk(ElementWalker.java:40)
 at com.hp.hpl.jena.sparql.syntax.ElementWalker.walk(ElementWalker.java:35)
 at com.hp.hpl.jena.sparql.lang.SyntaxVarScope.checkBind(SyntaxVarScope.java:77)
 at com.hp.hpl.jena.sparql.lang.SyntaxVarScope.check(SyntaxVarScope.java:64)
 at com.hp.hpl.jena.sparql.lang.Parser.validateParsedQuery(Parser.java:56)
 at com.hp.hpl.jena.sparql.lang.ParserARQ.parse$(ParserARQ.java:53)
 at com.hp.hpl.jena.sparql.lang.Parser.parse(Parser.java:37)
 at com.hp.hpl.jena.query.QueryFactory.parse(QueryFactory.java:156)
 at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:79)
 at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:52)
 at org.topbraid.spin.arq.ARQFactory.doCreateQuery(ARQFactory.java:235)
 at org.topbraid.spin.arq.ARQFactory.createQuery(ARQFactory.java:218)
 at org.topbraid.spin.util.SPINQueryFinder.add(SPINQueryFinder.java:90)
 at org.topbraid.spin.util.SPINQueryFinder.getClass2QueryMap(SPINQueryFinder.java:137)
 at org.topbraid.spin.sparqlmotion.modules.impl.ApplyTopSPINModule.addNewTriples(ApplyTopSPINModule.java:116)
 at org.topbraid.spin.sparqlmotion.modules.impl.ApplyTopSPINModule.addNewTriples(ApplyTopSPINModule.java:157)
 at org.topbraid.spin.sparqlmotion.modules.impl.ApplyTopSPINModule.createGraph(ApplyTopSPINModule.java:78)
 at org.topbraid.spin.sparqlmotion.modules.AbstractSMModule.getRDFOutput(AbstractSMModule.java:865)
 at org.topbraid.spin.sparqlmotion.engine.impl.ExecutionEngineImpl.executeModule(ExecutionEngineImpl.java:178)
 at org.topbraid.spin.sparqlmotion.engine.impl.ExecutionEngineImpl.execute(ExecutionEngineImpl.java:120)
 at org.topbraidcomposer.sparqlmotion.views.console.SPARQLMotionConsole.execute(SPARQLMotionConsole.java:79)
 at org.topbraidcomposer.sparqlmotion.actions.AbstractExecuteSPARQLMotionAction$1.run(AbstractExecuteSPARQLMotionAction.java:142)
 ... 2 more

 

[Holger Knublauch]

The syntax rules for SPARQL have become stricter in the recent Jena upgrade that we included in TopBraid 3.6.2. In particular you may need to move BIND statements further up in the query. As the error message states, you can no longer first bind a variable through a basic graph pattern and then use it in a BIND. If you would like to share the particular query that fails then I can give some more details. Meanwhile, please check all BINDs and make sure they are ordered correctly.

HTH

Holger

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[Leonard Jacuzzo]

Thanks Holger,

 

But there are absolutely no 'BIND'S anywhere in my SPIN RULES.

LFJ

[Leonard Jacuzzo]

Sorry,

 

On closer look I found it....(not my query....) Who would Bind a variable after it is bound?

 

Crazy.

LFJ