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From Lewis John Mcgibbney <lewis.mcgibb...@gmail.com>
Subject org.openrdf.rio.RDFHandlerException when attempting to parse CSV
Date Thu, 08 Jan 2015 19:38:52 GMT
Hi Folks,
With the Any23 webservice [0] when I try to extract triples from the
following CSV [1], I get the following stack trace

<?xml version="1.0" encoding="UTF-8" ?>
<report>
<message>Internal error.</message>
<error>
<![CDATA[
java.lang.RuntimeException: Error while receiving triple
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvrow/0
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvKeywordVersion:8.0
"Category"^^<http://www.w3.org/2001/XMLSchema#string>
	at org.apache.any23.extractor.ExtractionResultImpl.writeTriple(ExtractionResultImpl.java:163)
	at org.apache.any23.extractor.ExtractionResultImpl.writeTriple(ExtractionResultImpl.java:171)
	at org.apache.any23.extractor.csv.CSVExtractor.produceRowStatements(CSVExtractor.java:238)
	at org.apache.any23.extractor.csv.CSVExtractor.run(CSVExtractor.java:96)
	at org.apache.any23.extractor.csv.CSVExtractor.run(CSVExtractor.java:51)
	at org.apache.any23.extractor.SingleDocumentExtraction.runExtractor(SingleDocumentExtraction.java:462)
	at org.apache.any23.extractor.SingleDocumentExtraction.run(SingleDocumentExtraction.java:254)
	at org.apache.any23.Any23.extract(Any23.java:298)
	at org.apache.any23.Any23.extract(Any23.java:450)
	at org.apache.any23.servlet.WebResponder.runExtraction(WebResponder.java:114)
	at org.apache.any23.servlet.Servlet.doGet(Servlet.java:79)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:301)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:74)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:526)
	at org.apache.coyote.ajp.AbstractAjpProcessor.process(AbstractAjpProcessor.java:794)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:652)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1575)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1533)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.any23.writer.TripleHandlerException: Error while
receiving triple
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvrow/0
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvKeywordVersion:8.0
"Category"^^<http://www.w3.org/2001/XMLSchema#string>
	at org.apache.any23.filter.ExtractionContextBlocker.receiveTriple(ExtractionContextBlocker.java:106)
	at org.apache.any23.filter.IgnoreAccidentalRDFa.receiveTriple(IgnoreAccidentalRDFa.java:82)
	at org.apache.any23.writer.CompositeTripleHandler.receiveTriple(CompositeTripleHandler.java:89)
	at org.apache.any23.extractor.ExtractionResultImpl.writeTriple(ExtractionResultImpl.java:161)
	... 32 more
Caused by: org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipeException:
Error while opening the triple handler
	at org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipe.sendTriple(ExtractionContextBlocker.java:248)
	at org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipe.receiveTriple(ExtractionContextBlocker.java:197)
	at org.apache.any23.filter.ExtractionContextBlocker.receiveTriple(ExtractionContextBlocker.java:104)
	... 35 more
Caused by: org.apache.any23.writer.TripleHandlerException: Error while
receiving triple
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvrow/0
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvKeywordVersion:8.0
"Category"^^<http://www.w3.org/2001/XMLSchema#string>
	at org.apache.any23.filter.ExtractionContextBlocker.receiveTriple(ExtractionContextBlocker.java:106)
	at org.apache.any23.filter.IgnoreTitlesOfEmptyDocuments.receiveTriple(IgnoreTitlesOfEmptyDocuments.java:62)
	at org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipe.sendTriple(ExtractionContextBlocker.java:246)
	... 37 more
Caused by: org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipeException:
Error while opening the triple handler
	at org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipe.sendTriple(ExtractionContextBlocker.java:248)
	at org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipe.receiveTriple(ExtractionContextBlocker.java:197)
	at org.apache.any23.filter.ExtractionContextBlocker.receiveTriple(ExtractionContextBlocker.java:104)
	... 39 more
Caused by: org.apache.any23.writer.TripleHandlerException: Error while
receiving triple
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvrow/0
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvKeywordVersion:8.0
"Category"^^<http://www.w3.org/2001/XMLSchema#string>
	at org.apache.any23.filter.ExtractionContextBlocker.receiveTriple(ExtractionContextBlocker.java:106)
	at org.apache.any23.filter.IgnoreAccidentalRDFa.receiveTriple(IgnoreAccidentalRDFa.java:82)
	at org.apache.any23.writer.CompositeTripleHandler.receiveTriple(CompositeTripleHandler.java:89)
	at org.apache.any23.writer.ReportingTripleHandler.receiveTriple(ReportingTripleHandler.java:96)
	at org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipe.sendTriple(ExtractionContextBlocker.java:246)
	... 41 more
Caused by: org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipeException:
Error while opening the triple handler
	at org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipe.sendTriple(ExtractionContextBlocker.java:248)
	at org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipe.receiveTriple(ExtractionContextBlocker.java:197)
	at org.apache.any23.filter.ExtractionContextBlocker.receiveTriple(ExtractionContextBlocker.java:104)
	... 45 more
Caused by: org.apache.any23.writer.TripleHandlerException: Error while
receiving triple:
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvrow/0
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvKeywordVersion:8.0
"Category"^^<http://www.w3.org/2001/XMLSchema#string>
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csv
	at org.apache.any23.writer.RDFWriterTripleHandler.receiveTriple(RDFWriterTripleHandler.java:96)
	at org.apache.any23.filter.ExtractionContextBlocker$ValvedTriplePipe.sendTriple(ExtractionContextBlocker.java:246)
	... 47 more
Caused by: org.openrdf.rio.RDFHandlerException: Unable to create XML
namespace-qualified name for predicate:
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csvKeywordVersion:8.0
	at org.openrdf.rio.rdfxml.RDFXMLWriter.handleStatement(RDFXMLWriter.java:237)
	at org.apache.any23.writer.RDFWriterTripleHandler.receiveTriple(RDFWriterTripleHandler.java:93)
	... 48 more
]]>
</error>
<issueReport>

The Any23 service is effectively running of of trunk. Therefore I am going
to head over to the openrdf.rio lists and check this out out. I just wanted
to post it here first though.
Thanks
Lewis

[0] http://any23-vm.apache.org
[1]
http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csv

-- 
*Lewis*

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