Quite possibly you are running into a locking issue: No SPARQL
SELECT/CONSTRUCT query can have side effects such as writing new
triples. So doing a sml:PerformUpdate as part of a SPARQL function is
not a supported use case.
Why do you plan to use the SPARQL end point in the first place. Is it
because you want a certain response format? That could be achieved by
other means, even from SPARQLMotion (or SWP for that matter).
Holger
On 30/06/2017 4:01, Steve Ray wrote:
Holger,
Thanks for the super-fast response. That solved my parsing problem.
Unfortunately, the larger goal I am pursuing is still not working:
I have defined a SPARQLMotion module / web service that takes several
arguments, one of which is the XML message I was having trouble with,
passed in as an xsd:string. The module works great when I call it
using Postman.
Now, I’m trying to get the same functionality, but using the SPARQL
endpoint service (i.e. http://localhost:8083/tbl/sparql), where I send
a SPARQL query, inside of which is a call to the SPIN function
associated with my SPARQLMotion module. In this case, TBC accepts the
call and progresses through the script until it comes to a
PerformUpdate module. At this point, it is either hanging, or taking
so long that after a half hour I manually stop TBC.
My question: Does PerformUpdate behave differently when the SM script
is called as a web service, versus my calling the SPIN function in a
SPARQL endpoint query?
The SPARQL code inside my PerformUpdate is quite simple:
*INSERT*{
*GRAPH*?graphURI{
?s?p?o.
} .
}
*WHERE*{
?s?p?o.
}
…where some newly created triples are added to the graph identified in
?graphURI.
- Steve
Steven R. Ray, Ph.D.
Distinguished Research Fellow
Carnegie Mellon University
NASA Research Park
Building 23 (MS 23-11)
P.O. Box 1
Moffett Field, CA 94305-0001
Email: [email protected]
Phone: (650) 587-3780
Cell: (202) 316-6481
Skype: steverayconsulting
cid:[email protected]
*From:*[email protected]
[mailto:[email protected]] *On Behalf Of *Holger Knublauch
*Sent:* Wednesday, June 28, 2017 4:50 PM
*To:* [email protected]
*Subject:* Re: [topbraid-users] Getting tangled in XML parsing and
encoding
You can use triple-quotes, as in
SELECT ?xmlArgument
WHERE {
BIND ("""<?xml version="1.0"; encoding="UTF-8"?><oadr:oadrPayload
xmlns:ei="http://docs.oasis-open.org/ns/energyinterop/201110";
<http://docs.oasis-open.org/ns/energyinterop/201110>
xmlns:oadr="http://openadr.org/oadr-2.0b/2012/07";
<http://openadr.org/oadr-2.0b/2012/07>
><oadr:oadrSignedObject><oadr:oadrDistributeEvent
ei:schemaVersion="2.0b"></oadr:oadrDistributeEvent></oadr:oadrSignedObject></oadr:oadrPayload>"""
AS ?xmlArgument)
}
HTH
Holger
On 29/06/2017 9:32, Steve Ray (CMU) wrote:
How does one pass an XML argument like the one below to a SPARQL
query? See this trivial example:
*SELECT*?xmlArgument *WHERE*{*BIND*("<?xmlversion="1.0";
encoding="UTF-8"?><_oadr:oadrPayload_
_xmlns:ei_="http://docs.oasis-open.org/ns/energyinterop/201110";
<http://docs.oasis-open.org/ns/energyinterop/201110>
_xmlns:oadr_="http://openadr.org/oadr-2.0b/2012/07";
<http://openadr.org/oadr-2.0b/2012/07>
><_oadr:oadrSignedObject_><_oadr:oadrDistributeEvent_
_ei:schemaVersion_="2.0b"></_oadr:oadrDistributeEvent_></_oadr:oadrSignedObject_></_oadr:oadrPayload_>"
*AS*?xmlArgument)}
I have tried:
. replacing any embedded “ with "
. doing that, plus replacing all the < and > with < and >
. escaping the “ with \
. uuencoding the XML string
…all with no luck. I’m doing my testing using the SPARQL query
panel in TBC, and it chokes.
Thanks in advance.
- Steve
Steven R. Ray, Ph.D.
Distinguished Research Fellow
Carnegie Mellon University
NASA Research Park
Building 23 (MS 23-11)
P.O. Box 1
Moffett Field, CA 94305-0001
Email: [email protected] <mailto:[email protected]>
Phone: (650) 587-3780
Cell: (202) 316-6481
Skype: steverayconsulting
cid:[email protected]
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