[jira] [Created] (JENA-2315) SHACL: bug in execution of SPARQL validation for a specified focusNode via validation API

["Jakub Wach (Jira)" <ji...@apache.org>]

Jakub Wach created JENA-2315:
--------------------------------

             Summary: SHACL: bug in execution of  SPARQL validation for a specified focusNode via validation API
                 Key: JENA-2315
                 URL: https://issues.apache.org/jira/browse/JENA-2315
             Project: Apache Jena
          Issue Type: Bug
          Components: SHACL
    Affects Versions: Jena 4.4.0
            Reporter: Jakub Wach
         Attachments: SHACL__bug_in_execution_of__SPARQL_validation_for_a_specified_focusNode_via_validation_API.patch

*Description:* 

While running validation focused on single explicit focus node.  It seems that due to the missing return statement validation will never be effective at all.

*Reproduction:*

While running validation focused on single resource node. E.g. by calling:

```

new ShaclPlainValidator().validate(shapes, data, node);

```

*Example data:* 

```

<{color:#0000ff}someResource{color}>
     a <{color:#0000ff}someClass{color}> ;
    <{color:#0000ff}someunknownProperty{color}> <{color:#0000ff}someUnimportantValue{color}> ;
.

```

*Example shape:*

```

<propertyShape
    a              sh:NodeShape ;
    sh:severity    sh:Warning ;
    sh:target [
                  a sh:SPARQLTarget ;   
                  sh:select """
                        SELECT DISTINCT ?node
                        WHERE {
                            ?node a ?class .
                        }
                        """ ;
              ] ;    
    sh:sparql      [ sh:message "Resource \{$this} has unknown property \{$path}" ;
                     sh:select """
                            SELECT DISTINCT $this ?path
                            WHERE {
                                $this ?path ?value .
                                $this a ?class .
                                FILTER NOT EXISTS {
                                     ?path <http://www.w3.org/2000/01/rdf-schema#domain> ?class
                                }
                            }
                        """ ] ;
.

```



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