[
https://issues.apache.org/jira/browse/JENA-1325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15979103#comment-15979103
]
Andy Seaborne commented on JENA-1325:
-------------------------------------
You are asking for each file to be buffered which could be done but isn't. That
functionality does not have to be in the parser tool. you can call riot in a
loop in a single java process by writing a small java program to call
{{riot.riot.main}}. This is what giving all the file is doing - calling the
parser on each one. The JVM startup/JIT compilation.
Various suggestions have been made as to how you can achieve what you want.
Indeed, the files you wish to process do not change very frequently so running
overnight is a possibility as well.
Apache Jena is open source. The project works by people giving code
contributions and volunteers who integrate those contributions. People give
their time to answer questions on the users list.
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
