Add semantic-uplift transform type

Author: avillar

ogc/bblocks/schemas/transforms.schema.yaml

@@ -68,6 +68,7 @@ $defs:
           - sparql-update
           - json-ld-frame
           - jq
+          - semantic-uplift
       - description: Other identifiers are also accepted
         $ref: '#/$defs/nonEmptyString'
 

ogc/bblocks/transformers/semantic-uplift.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+import json
+from typing import AnyStr
+
+from ogc.na.util import load_yaml
+from rdflib import Graph
+
+from ogc.bblocks.models import TransformMetadata, Transformer
+from ogc.na import ingest_json
+
+transform_type = 'semantic-uplift'
+
+default_inputs = [
+    'application/json',
+]
+
+default_outputs = [
+    'text/turtle',
+    'rdf/xml',
+]
+
+class SemanticUpliftTransformer(Transformer):
+
+    def __init__(self):
+        super().__init__([transform_type], default_inputs, default_outputs)
+
+    def do_transform(self, metadata: TransformMetadata) -> AnyStr | None:
+        uplift_def = load_yaml(content=metadata.transform_content)
+        uplifted = json.dumps(ingest_json.uplift_json(json.loads(metadata.input_data), uplift_def))
+        data_graph = Graph().parse(data=uplifted, format='json-ld')
+        return data_graph.serialize(format=metadata.target_mime_type)