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Posted to dev@jena.apache.org by "Andy Seaborne (JIRA)" <ji...@apache.org> on 2014/07/19 20:28:38 UTC
[jira] [Closed] (JENA-741) SPARQL replace causes query to crash
when non-existent group in replacement pattern
[ https://issues.apache.org/jira/browse/JENA-741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andy Seaborne closed JENA-741.
------------------------------
Resolution: Fixed
Fix Version/s: Jena 2.12.0
Assignee: Andy Seaborne
Agreed - the right answer is an eval error resulting in no binding for {{?error}}.
> SPARQL replace causes query to crash when non-existent group in replacement pattern
> -----------------------------------------------------------------------------------
>
> Key: JENA-741
> URL: https://issues.apache.org/jira/browse/JENA-741
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ
> Affects Versions: Jena 2.11.0
> Reporter: Joshua Taylor
> Assignee: Andy Seaborne
> Labels: arq, sparql, xpath
> Fix For: Jena 2.12.0
>
>
> If a replacement string uses a group that's not in the pattern, the whole query crashes (as opposed to the value of replace just being an error value). Version, query, and command line to reproduce:
> {noformat}
> $ sparql --version && cat query.rq && sparql --query query.rq --data data.n3
> Jena: VERSION: 2.11.0
> Jena: BUILD_DATE: 2013-09-12T10:49:49+0100
> ARQ: VERSION: 2.11.0
> ARQ: BUILD_DATE: 2013-09-12T10:49:49+0100
> RIOT: VERSION: 2.11.0
> RIOT: BUILD_DATE: 2013-09-12T10:49:49+0100
> select (replace("x", ".", "$1") as ?error) where {}
> Exception
> java.lang.IndexOutOfBoundsException: No group 1
> at java.util.regex.Matcher.start(Matcher.java:375)
> at java.util.regex.Matcher.appendReplacement(Matcher.java:880)
> at java.util.regex.Matcher.replaceAll(Matcher.java:955)
> at com.hp.hpl.jena.sparql.expr.nodevalue.XSDFuncOp.strReplace(XSDFuncOp.java:421)
> at com.hp.hpl.jena.sparql.expr.E_StrReplace.eval(E_StrReplace.java:52)
> at com.hp.hpl.jena.sparql.expr.ExprFunctionN.eval(ExprFunctionN.java:115)
> at com.hp.hpl.jena.sparql.expr.ExprFunctionN.eval(ExprFunctionN.java:112)
> at com.hp.hpl.jena.sparql.core.VarExprList.get(VarExprList.java:82)
> at com.hp.hpl.jena.sparql.engine.iterator.QueryIterAssign.accept(QueryIterAssign.java:68)
> at com.hp.hpl.jena.sparql.engine.iterator.QueryIterProcessBinding.hasNextBinding(QueryIterProcessBinding.java:64)
> at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:112)
> at com.hp.hpl.jena.sparql.engine.iterator.QueryIterConvert.hasNextBinding(QueryIterConvert.java:59)
> at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:112)
> at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:40)
> at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:112)
> at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:40)
> at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:112)
> at com.hp.hpl.jena.sparql.engine.ResultSetStream.hasNext(ResultSetStream.java:75)
> at com.hp.hpl.jena.sparql.resultset.ResultSetMem.<init>(ResultSetMem.java:97)
> at com.hp.hpl.jena.query.ResultSetFactory.makeRewindable(ResultSetFactory.java:420)
> at com.hp.hpl.jena.sparql.resultset.TextOutput.write(TextOutput.java:149)
> at com.hp.hpl.jena.sparql.resultset.TextOutput.write(TextOutput.java:132)
> at com.hp.hpl.jena.sparql.resultset.TextOutput.write(TextOutput.java:120)
> at com.hp.hpl.jena.sparql.resultset.TextOutput.format(TextOutput.java:67)
> at com.hp.hpl.jena.query.ResultSetFormatter.out(ResultSetFormatter.java:135)
> at com.hp.hpl.jena.sparql.util.QueryExecUtils.outputResultSet(QueryExecUtils.java:157)
> at com.hp.hpl.jena.sparql.util.QueryExecUtils.doSelectQuery(QueryExecUtils.java:199)
> at com.hp.hpl.jena.sparql.util.QueryExecUtils.executeQuery(QueryExecUtils.java:75)
> at arq.query.queryExec(query.java:194)
> at arq.query.exec(query.java:145)
> at arq.cmdline.CmdMain.mainMethod(CmdMain.java:101)
> at arq.cmdline.CmdMain.mainRun(CmdMain.java:63)
> at arq.cmdline.CmdMain.mainRun(CmdMain.java:50)
> at arq.query.main(query.java:63)
> at arq.sparql.main(sparql.java:27)
> {noformat}
> I would have expected
> {noformat}
> ---------
> | error |
> =========
> | |
> ---------
> {noformat}
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