Re: [Aperture-devel] Incremental crawling fails

[Christiaan F. <chr...@ad...>]

Hi Stefan,

It seems to me then that the FileAccessData is not trying to parse the 
file that you submitted. That file is fully well-formed and the chance 
that you've found a bug in Xerces is pretty low. Perhaps you can run 
your application in a debugger and verify that it is indeed parsing this 
file?

Regards,

Chris
--

Stefan Dellmuth wrote:
> Hi...
> 
> so, nobody has any ideas? :( At the moment, the SAX parser spams random
> errors, saying that there is no matching endtag for "scanresult" or that
> there is a "<" in the id of a data object... which can't be the case and
> in the case of the endtag, is plain wrong. Any suggestions?
> 
> Stefan Dellmuth schrieb:
>> Hi, Aperturians! :)
>>
>> I'm currently working on DynaQ, and I'm experiencing some problems with
>> the underlying Aperture Framework. The problem has something to do with
>> AccessData... ok, let me explain.
>>
>> I'm carwling a part one directory that contains 8,000 images. I had to
>> interrupt the crawling process and when I resumed, I got this exception.
>>
>> 29.09.2008 14:41:26 SEVERE: IOException while accessing AccessData
>> <<<< from CrawlerBase.crawl(..) [Thread 15]
>> java.io.IOException: Premature end of file.
>>     at
>> org.semanticdesktop.aperture.accessor.base.FileAccessData.read(FileAccessData.java:205)
>>     at
>> org.semanticdesktop.aperture.accessor.base.FileAccessData.initialize(FileAccessData.java:169)
>>     at
>> org.semanticdesktop.aperture.crawler.base.CrawlerBase.crawl(CrawlerBase.java:208)
>>     at
>> de.dfki.catwiesel.synchronizer.importer.aperture.file.ApertureFileSystemImporter.startImport(ApertureFileSystemImporter.java:288)
>>     at
>> de.dfki.catwiesel.synchronizer.importer.ImporterInputQueue.startImport(ImporterInputQueue.java:110)
>>     at
>> de.dfki.catwiesel.CatwieselDocumentStore.importData(CatwieselDocumentStore.java:720)
>>     at org.dynaq.index.Indexer.performCatwieselIndexing(Indexer.java:1093)
>>     at org.dynaq.index.Indexer.createIndex(Indexer.java:495)
>>     at
>> org.dynaq.index.CyclicIndexerRunnable.run(CyclicIndexerRunnable.java:82)
>>     at java.lang.Thread.run(Thread.java:619)
>> Caused by: org.xml.sax.SAXParseException: Premature end of file.
>>     at
>> org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown
>> Source)
>>     at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
>>     at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
>>     at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
>>     at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source)
>>     at
>> org.apache.xerces.impl.XMLDocumentScannerImpl$ContentDispatcher.endOfFileHook(Unknown
>> Source)
>>     at
>> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
>> Source)
>>     at
>> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
>> Source)
>>     at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
>>     at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
>>     at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>>     at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>>     at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
>>     at javax.xml.parsers.SAXParser.parse(SAXParser.java:198)
>>     at
>> org.semanticdesktop.aperture.util.SimpleSAXParser.parse(SimpleSAXParser.java:144)
>>     at
>> org.semanticdesktop.aperture.accessor.base.FileAccessData.read(FileAccessData.java:197)
>>     ... 9 more
>>
>> The corresponding AccessData file is attached to this mail. The
>> exception forces the whole crawling process to abort.
>>
>> When I start DynaQ for the next time, the crawler starts to crawl all
>> the files again! The interesting thing is... the AccessData file is
>> still there, referencing the files that were just crawled some minutes ago!
>>
>> Does anybody know what the problem might be?
>>
>> Sincerely yours,
>> Stefan Dellmuth
>>
>>   
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>>
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> 
> 
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