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https://issues.apache.org/jira/browse/JENA-1325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15979048#comment-15979048
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A. Soroka commented on JENA-1325:
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The important point is what [~andy.seaborne] said: "Triples are output while a
file is being parsed, not after the file is read."
By the time that RIOT (as a streaming system) knows that there is a problem in
some file, some portion of the file has _already_ been output as streaming.
It's too late to somehow magically not output the triples from the part of that
file that has already been processed. So there is no way to say "If there is a
problem in a file, don't give me any triples from that file, otherwise, for
files with no problems, give me their triples."
> RIOT parse many files at once, output only valid ones
> -----------------------------------------------------
>
> Key: JENA-1325
> URL: https://issues.apache.org/jira/browse/JENA-1325
> Project: Apache Jena
> Issue Type: Improvement
> Components: RIOT
> Environment: GNU/Linux
> Reporter: Laura
> Labels: easyfix, performance
>
> This issue is more or less related to this other one
> https://issues.apache.org/jira/browse/JENA-1322
> I have a folder with thousands of files, mostly small RDF/XML files. I'm
> using RIOT to validate them and dump the valid ones into ntriples files. The
> problem is that calling RIOT on each file is not going to cut it. The
> overhead is significant enough that this operation is just too slow (hours).
> So I've tried to call RIOT only once on all files together using
> {noformat}
> riot \
> --verbose \
> --stop \
> --check \
> --strict \
> --output=nt \
> files/*.rdf > files.nt
> {noformat}
> and in this way validation is much faster. The problem is, that it's still
> dumping invalid files to the .nt output file. I'm downloading these files
> from the Internet, so I'm not going to fix them myself, I just want to skip
> bad files.
> Now, to be clear, I understand that RIOT is of course not meant to fix bad
> data, and I'm not asking for this. I'm suggesting however to add an
> *--option* such that RIOT can do the following:
> 1. parse multiple files at once (so that there is no need to invoke the same
> RIOT command for each file)
> 2. for every file, check/validate it
> 3. if *--output* is set, only output those files or triples that didn't raise
> any ERROR
> I think this is well in the scope of RIOT functionalities. Could this option
> please be added to RIOT?
> Thank you.
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