On 16/08/12 14:28, Carsten Keßler wrote:
Dear all,
is it possible to replace URIs in a store, similar to the approach in
example 5 given here: http://www.w3.org/TR/sparql11-update/#deleteInsert ?
The catch is that I don't want to replace single URIs, but all URIs in a
certain namespace. Say I have
http://some.domain.org/myClassA
http://some.domain.org/myClassB
http://some.domain.org/myPropertyA
http://some.domain.org/myPropertyB
etc.
and I want to change them all to
http://another.domain.org/myClassA
http://another.domain.org/myClassB
http://another.domain.org/myPropertyA
http://another.domain.org/myPropertyB
etc.
Finding the URIs to replace via FILTER and regex is no problem, but I'm
wondering whether there is a way to make sure that the
class/property-specific parts of the URIs are maintained and copied over
to the new URIs?
Any ideas appreciated!
This (virtually untested) update will convert namespaces for subject URIs:
DELETE { ?s ?p ?o }
INSERT { ?s1 ?p ?o }
WHERE
{
{ SELECT (uri(concat("http://another.domain.org/";,
SUBSTR(str(?s),24)) )
AS ?s1)
{
?s ?p ?o .
FILTER regex(str(?s), "^http://some.domain.org/";)
}}
}
it finds the URIs starting with http://some.domain.org/, then calculates
a replacement by string bashing.
Repeat for objects.
Andy
Thanks,
Carsten
---
Carsten Keßler | http://carsten.io
Semantic Interoperability Lab | http://musil.uni-muenster.de
Institute for Geoinformatics | http://ifgi.uni-muenster.de
University of Münster | http://www.uni-muenster.de
