I'm not sure if this is the source of the problem, but the rules
endpoint seems to be handling CORS preflight only on the root resource
and not in the subresources. And there are a few GET methods that still
need to add the CORS origin.
I'm afraid I don't have the time to fix and test it myself, but a ticket
could be opened in the meantime.
Alessandro
On 8/1/12 12:01 PM, Melanie Reiplinger wrote:
Hi Alessandro and all,
Is CORS access to the rules endpoint granted?
When I do e.g. a PUT to
http://<stanbol>/rules/recipe/http://www.dfki.de/mere01/recipe/melaniesRecipe
in order to create a new recipe
"http://www.dfki.de/mere01/recipe/melaniesRecipe";,
I'm getting a real strange response header:
Allow:
OPTIONS,POST,GET,DELETE,HEAD,PUT
This looks a bit ancient, most of the other endpoints return at least
Access-Control-Allow-Origin
and
1.
Access-Control-Allow-Headers
2.
Access-Control-Allow-Methods
Best,
melanie
Am 15.07.2012 13:21, schrieb Melanie Reiplinger:
Hi Alessandro.
Sorry to bother you again, but I have a few more questions for the
rules endpoint.
Am 13.07.2012 16:09, schrieb Alessandro Adamou:
On 7/13/12 3:57 PM, Melanie Reiplinger wrote:
Am 13.07.2012 15:33, schrieb Alessandro Adamou:
Here is what worked for me:
curl -X POST -F "rules=transitivity[has(?r, ?x, ?z) . has(?r, ?z,
?y) -> has(?r, ?x, ?y)]" -F "description=Test rule"
http://[stanbol]/rules/recipe/http://www.dfki.de/mere01/recipe/r1
great, works fine. Now, if I want to get the rule itself, to what
URL do I send the GET? I tested
<stanbol>/rules/rule/transitivity
<stanbol>/rules/transitivity
<stanbol>/rule/transitivity
<stanbol>/rules/find/rules
The last one with query parameters is correct. Try this:
curl -H "Accept: application/rdf+xml"
http://[stanbol]/rules/find/rules?name=rans
curl -H "Accept: application/rdf+xml"
http://[stanbol]/rules/find/rules?description=irst
hmm, ok, so one could assume that it works analogously for the
rules/find/recipes. But when doing
curl -H "Accept: text/turtle"
http://<stanbol>/rules/find/recipes?name=r2
or
curl -H "Accept: text/turtle"
http://<stanbol>/rules/find/recipes?name=http://www.dfki.de/mere01/recipe/r2
I get a 404 Not Found.
(for a recipe named 'r2', created by
curl -i -X PUT
http://lnv-89012.dfki.uni-sb.de:9001/rules/recipe/http://www.dfki.de/mere01/recipe/r2
)
what am I doing wrong?
Also: How do we then remove rules from a recipe, if we cannot address
them simply by attaching their URI or name to the endpoint's URL?
And one more: For the refactoring functionality I didn't get very
far. First thing I wanted to give some minimal toy RDF graph as an
input and refactor via the RESTful Interface. This gives me the (not
very informative) message:
"The site <stanbol> says: Error".
(in the form of an alert window). This error might be due to
virtually anything. My toy example is
<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
xmlns:dbpedia="http://dbpedia.org/property/";>
<rdf:Description rdf:about="urn:example:person:ernie">
<dbpedia:Person>Ernie</dbpedia:Person>
<dbpedia:profession>Friend of Bert</dbpedia:profession>
</rdf:Description>
</rdf:RDF>
and I was hoping for something like an application of the
"peopleProfessionRule" rule or something. (I already checked on
http://www.w3.org/RDF/Validator/ to make sure it is well-formed).
best
melanie
You can also ask for:
text/turtle
text/owl-manchester
text/owl-functional
application/owl+xml
application/rdf+json
Theoretically, it should also support
application/json (JSON-LD)
text/plain
but I don't see a body writer registered with rule lists so it
didn't work for me.
Best,
Alessandro
To check if it has been stored (and therefore parsed), you can do
a GET on
http://[stanbol]/rules/recipe/http://www.dfki.de/mere01/recipe/r1
requesting text/plain or some KR format such as
text/turtle
application/rdf+xml
text/owl-manchester
Hope this helps,
Alessandro
--
M.Sc. Alessandro Adamou
Alma Mater Studiorum - Università di Bologna
Department of Computer Science
Mura Anteo Zamboni 7, 40127 Bologna - Italy
Semantic Technology Laboratory (STLab)
Institute for Cognitive Science and Technology (ISTC)
National Research Council (CNR)
Via Nomentana 56, 00161 Rome - Italy
"I will give you everything, just don't demand anything."
(Ettore Petrolini, 1917)
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