Re: Starting with SHACL-JS

Hi Angelo,

there is a small mismatch in the URIs:

- the data uses http://www.example.org/ns#germanLabel

- the constraint JS code uses http://example.org/ns#germanLabel

Once you align those (add the www.) it should work (I tried by running 
it from TBC)

HTH
Holger


On 18/02/2020 01:11, Angelo Frozza wrote:
> > You could take a copy of its code base and evolve it to your needs, 
> or use the Java-based SHACL API.
> I'm using now the SHACL API.
> I copied the example JavaScript-based Constraint in 6.1 section from 
> https://www.w3.org/TR/shacl-js/
>
> The Data Graph has 3 instances (2 wrongs).
> ========
> @prefix ex:   <http://www.test.com/ns#> .
>
> ex:ValidCountry a ex:Country ;
>     ex:germanLabel "Spanien"@de .
>
> ex:InvalidCountry a ex:Country ;
>     ex:germanLabel "Spain"@en .
>
> ex:InvalidCountry_2 a ex:Country ;
>     ex:germanLabel "Spain"@pt .
> ========
>
> The JavaScript function is:
> ========
> function validateGermanLabel($this) {
>     var results = [];
>     var p = TermFactory.namedNode("http://example.org/ns#germanLabel");
>     var s = $data.find($this, p, null);
>     for(var t = s.next(); t; t = s.next()) {
>         var object = t.object;
>         if(!object.isLiteral() || !object.language.startsWith("de")) {
>             results.push({
>                 value : object
>             });
>         }
>     }
>     return results;
> }
> ========
>
> And, the Shape Graph is:
> ========
> @prefix sh:   <http://www.w3.org/ns/shacl#> .
> @prefix xsd:  <http://www.w3.org/2001/XMLSchema#> .
> @prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
> @prefix ex:   <http://www.test.com/ns#> .
> @prefix dash: <http://datashapes.org/dash> .
> @prefix sf:   <http://www.opengis.net/ont/sf#> .
> @prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
>
> ex:LanguageExampleShape
>     a sh:NodeShape ;
>     sh:targetClass ex:Country ;
>     sh:js [    # _:b1
>         a sh:JSConstraint ;   # This triple is optional
>         sh:message "Values are literals with German language tag." ;
>
>         sh:jsLibrary [ sh:jsLibraryURL 
> "http://54.201.29.21/shapes/SHACL-JS-W3C-Javascript.js" ] ;
>
>         sh:jsFunctionName "validateGermanLabel" ;
>     ] .
> ========
>
>
> All files can be found in http://54.201.29.21/shapes/.
>
> I use the following command to validate the Data Graph:
>
> sudo shshacl-1.3.1/bin/shaclvalidate.sh -datafile 
> myExamples/SHACL-JS-W3C-DataGraph.ttl -shapesfile 
> myExamples/SHACL-JS-W3C-ShapeGraph.ttl
>
>
> But in the result it appeared as valid.
> The 2 violations did not appear in the Data Graph.
>
>
> [ a <http://www.w3.org/ns/shacl#ValidationReport> ;
>
> <http://www.w3.org/ns/shacl#conforms>
>
> true
>
> ] .
>
>
> I can't see where my error is, if it is in any of the files, in the 
> command executed via terminal or if it can be my installation of the 
> SHACL API.
>
> Hugs,
>
> -- 
>
> -----
> Prof. Angelo Augusto Frozza, M.Sc.
> angelo.frozza@ifc.edu.br <mailto:frozza@ifc.edu.br>
> Doutorando PPGCC/UFSC
>
> Professor EBTT
> IFC - Instituto Federal Catarinense - Campus Camboriú
> http://about.me/tilfrozza
>
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