Add example for new type of transforms

_sources/feature/geojsonFeature/examples.yaml

@@ -5,15 +5,4 @@
   base-uri: http://example.com/features/
   snippets:
     - language: json
-      ref: examples/feature.json
-
-  transforms:
-    - input-language: application/json
-      output-language: application/json
-      type: jq
-      code: '.properties.myPropUpper = (.properties.myProp | ascii_upcase)'
-
-    - input-language: text/turtle
-      output-language: text/turtle
-      type: shacl
-      ref: transforms/sample.shacl
+      ref: examples/feature.json

_sources/transforms/transforms-example/bblock.json

@@ -0,0 +1,8 @@
+{
+  "name": "Transforms example",
+  "status": "under-development",
+  "dateTimeAddition": "2024-10-03T11:31:00+02:00",
+  "itemClass": "schema",
+  "version": "0.1",
+  "dateOfLastChange": "2024-10-03"
+}

_sources/transforms/transforms-example/context.jsonld

@@ -0,0 +1,8 @@
+{
+  "@context": {
+    "ex": "http://example.com/",
+    "one": "ex:hasOne",
+    "two": "ex:hasTwo",
+    "string": "ex:hasString",
+  }
+}

_sources/transforms/transforms-example/examples.yaml

@@ -0,0 +1,10 @@
+examples:
+  - title: Example for transforms
+    snippets:
+      - language: json
+        code: |
+          {
+            "one": 1,
+            "two": 2,
+            "string": "value"
+          }

_sources/transforms/transforms-example/schema.yaml

@@ -0,0 +1,8 @@
+type: object
+properties:
+  one:
+    type: number
+  two:
+    type: number
+  string:
+    type: string

_sources/transforms/transforms-example/transforms.yaml

@@ -0,0 +1,10 @@
+transforms:
+  - id: prefix-keys
+    description: Adds a "PREF" prefix to all object keys.
+    type: jq
+    ref: transforms/prefix-keys.jq
+
+  - id: prefix-predicates
+    description: Changes the "http://example.com/" prefix of every predicate to a URN
+    type: sparql-update
+    ref: transforms/prefix-predicates.sparql

_sources/transforms/transforms-example/transforms/prefix-keys.jq

@@ -0,0 +1 @@
+walk(if type == "object" then with_entries( .key |= "PREF\(.)" ) else . end)

_sources/transforms/transforms-example/transforms/prefix-predicates.sparql

@@ -0,0 +1,11 @@
+DELETE {
+  ?s ?p ?o
+}
+INSERT {
+  ?s ?p2 ?o
+}
+WHERE {
+  ?s ?p ?o
+  FILTER(STRSTARTS(STR(?p), "http://example.com/"))
+  BIND(URI(REPLACE(STR(?p), "^http://example.com/", "urn:example:ex#")) as ?p2)
+}