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backend: support external SPARQL and named-graph snapshots

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This commit is contained in:
Oxy8
2026-04-06 13:36:08 -03:00
parent 696844f341
commit 44c1d3eaa6
25 changed files with 1695 additions and 243 deletions
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33
backend_go/selection_queries/named_graph_test.go Normal file
View File

@@ -0,0 +1,33 @@
package selection_queries
import (
"strings"
"testing"
)
func TestSelectionQueriesUseNamedGraphs(t *testing.T) {
selected := []NodeRef{
{ID: 1, TermType: "uri", IRI: "http://example.com/A"},
}
tests := []struct {
name string
query string
}{
{name: "neighbors", query: neighborsQuery(selected, false)},
{name: "superclasses", query: superclassesQuery(selected, false)},
{name: "subclasses", query: subclassesQuery(selected, false)},
}
for _, tt := range tests {
if !strings.Contains(tt.query, "SELECT DISTINCT ?s ?p ?o") {
t.Fatalf("%s query should de-duplicate triples across named graphs:\n%s", tt.name, tt.query)
}
if !strings.Contains(tt.query, "GRAPH ?g") {
t.Fatalf("%s query should read from named graphs:\n%s", tt.name, tt.query)
}
if strings.Contains(tt.query, "owl:Class") {
t.Fatalf("%s query should no longer depend on owl:Class:\n%s", tt.name, tt.query)
}
}
}

64
backend_go/selection_queries/neighbors.go
View File

@@ -4,6 +4,8 @@ import (
"context"
"fmt"
"strings"
"visualizador_instanciados/backend_go/queryscope"
)
func neighborsQuery(selectedNodes []NodeRef, includeBNodes bool) string {
@@ -26,6 +28,36 @@ func neighborsQuery(selectedNodes []NodeRef, includeBNodes bool) string {
}
values := strings.Join(valuesTerms, " ")
pattern := queryscope.NamedGraph(fmt.Sprintf(`
{
VALUES ?sel { %s }
BIND(?sel AS ?s)
VALUES ?p { rdf:type }
?s ?p ?o .
}
UNION
{
VALUES ?sel { %s }
VALUES ?p { rdf:type }
?s ?p ?sel .
BIND(?sel AS ?o)
}
UNION
{
VALUES ?sel { %s }
BIND(?sel AS ?s)
VALUES ?p { rdfs:subClassOf }
?s ?p ?o .
}
UNION
{
VALUES ?sel { %s }
VALUES ?p { rdfs:subClassOf }
?s ?p ?sel .
BIND(?sel AS ?o)
}
`, values, values, values, values))
return fmt.Sprintf(`
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
@@ -33,40 +65,12 @@ PREFIX owl: <http://www.w3.org/2002/07/owl#>
SELECT DISTINCT ?s ?p ?o
WHERE {
{
VALUES ?sel { %s }
BIND(?sel AS ?s)
VALUES ?p { rdf:type }
?s ?p ?o .
?o rdf:type owl:Class .
}
UNION
{
VALUES ?sel { %s }
VALUES ?p { rdf:type }
?s ?p ?sel .
?sel rdf:type owl:Class .
BIND(?sel AS ?o)
}
UNION
{
VALUES ?sel { %s }
BIND(?sel AS ?s)
VALUES ?p { rdfs:subClassOf }
?s ?p ?o .
}
UNION
{
VALUES ?sel { %s }
VALUES ?p { rdfs:subClassOf }
?s ?p ?sel .
BIND(?sel AS ?o)
}
%s
FILTER(!isLiteral(?o))
FILTER(?s != ?o)
%s
}
`, values, values, values, values, bnodeFilter)
`, pattern, bnodeFilter)
}
func runNeighbors(ctx context.Context, q Querier, idx Index, selectedIDs []uint32, includeBNodes bool) (Result, error) {

25
backend_go/selection_queries/subclasses.go
View File

@@ -4,6 +4,8 @@ import (
"context"
"fmt"
"strings"
"visualizador_instanciados/backend_go/queryscope"
)
func subclassesQuery(selectedNodes []NodeRef, includeBNodes bool) string {
@@ -26,20 +28,33 @@ func subclassesQuery(selectedNodes []NodeRef, includeBNodes bool) string {
}
values := strings.Join(valuesTerms, " ")
pattern := queryscope.NamedGraph(fmt.Sprintf(`
{
VALUES ?sel { %s }
VALUES ?p { rdfs:subClassOf }
?s ?p ?sel .
BIND(?sel AS ?o)
}
UNION
{
VALUES ?sel { %s }
VALUES ?p { <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> }
?s ?p ?sel .
BIND(?sel AS ?o)
}
`, values, values))
return fmt.Sprintf(`
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?s ?p ?o
WHERE {
VALUES ?sel { %s }
VALUES ?p { rdfs:subClassOf }
?s ?p ?sel .
BIND(?sel AS ?o)
%s
FILTER(!isLiteral(?o))
FILTER(?s != ?o)
%s
}
`, values, bnodeFilter)
`, pattern, bnodeFilter)
}
func runSubclasses(ctx context.Context, q Querier, idx Index, selectedIDs []uint32, includeBNodes bool) (Result, error) {

25
backend_go/selection_queries/superclasses.go
View File

@@ -4,6 +4,8 @@ import (
"context"
"fmt"
"strings"
"visualizador_instanciados/backend_go/queryscope"
)
func superclassesQuery(selectedNodes []NodeRef, includeBNodes bool) string {
@@ -26,20 +28,33 @@ func superclassesQuery(selectedNodes []NodeRef, includeBNodes bool) string {
}
values := strings.Join(valuesTerms, " ")
pattern := queryscope.NamedGraph(fmt.Sprintf(`
{
VALUES ?sel { %s }
BIND(?sel AS ?s)
VALUES ?p { rdfs:subClassOf }
?s ?p ?o .
}
UNION
{
VALUES ?sel { %s }
BIND(?sel AS ?s)
VALUES ?p { <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> }
?s ?p ?o .
}
`, values, values))
return fmt.Sprintf(`
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?s ?p ?o
WHERE {
VALUES ?sel { %s }
BIND(?sel AS ?s)
VALUES ?p { rdfs:subClassOf }
?s ?p ?o .
%s
FILTER(!isLiteral(?o))
FILTER(?s != ?o)
%s
}
`, values, bnodeFilter)
`, pattern, bnodeFilter)
}
func runSuperclasses(ctx context.Context, q Querier, idx Index, selectedIDs []uint32, includeBNodes bool) (Result, error) {