tdbrec created JENA-1728:
----------------------------
Summary: Fuseki Assembler ignore ja:rulesFrom on Error
Key: JENA-1728
URL: https://issues.apache.org/jira/browse/JENA-1728
Project: Apache Jena
Issue Type: Improvement
Components: Fuseki
Affects Versions: Jena 3.12.0
Environment: GNU/Linux (Debian)
Reporter: tdbrec
{code:turtle}
:dataset a ja:InfModel ;
ja:baseModel ..... ;
ja:reasoner [
ja:reasonerURL <http://jena.hpl.hp.com/2003/GenericRuleReasoner> ;
ja:rulesFrom <file:///rules-1> ;
ja:rulesFrom <file:///rules-2> ;
] .
{code}
If one of the files ja:rulesFrom contain syntax errors, Fuseki stops working.
It would be useful to have a way for "loading or ignoring" rules, for example
ja:rulesOrIgnoreFrom <...>
My use case is that I'm accepting inference rules from users, and the only way
to update inference rules is by writing them to a file, append a new
ja:rulesFrom in the configuration, and reload Fuseki. Even though this process
is pretty cumbersome for updating rules, at least it's doable and I'm OK with
that. The major stopper is that there isn't a way to validate rules, so when I
ask Fuseki to load a broken file it will refuse to work until I fix the file
manually.
A different option could be a new "ja:rulesFromDirectory" that will
automatically load all files inside a directory ignoring any file that raise an
exception.
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