From d46d670a84b9556208ae8a30726b98cba670bc8d Mon Sep 17 00:00:00 2001
From: smessie <smessie@smessie.com>
Date: Fri, 22 Mar 2024 13:08:17 +0100
Subject: [PATCH] Add SHACL shape for DCAT-AP Feeds

---
 shape.ttl | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 spec.bs   |  2 +-
 2 files changed, 55 insertions(+), 1 deletion(-)
 create mode 100644 shape.ttl

diff --git a/shape.ttl b/shape.ttl
new file mode 100644
index 0000000..71f709d
--- /dev/null
+++ b/shape.ttl
@@ -0,0 +1,54 @@
+@prefix dcatapfeeds: <https://semiceu.github.io/LDES-DCAT-AP-Feeds/shape.ttl#> .
+@prefix sh: <http://www.w3.org/ns/shacl#> .
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
+@prefix tree: <https://w3id.org/tree#> .
+@prefix as: <https://www.w3.org/ns/activitystreams#> .
+@prefix : <http://data.europa.eu/r5r/shacl_shapes#> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
+
+dcatapfeeds: owl:imports <https://semiceu.github.io/DCAT-AP/releases/3.0.0/html/shacl/shapes.ttl> .
+
+dcatapfeeds:ActivityShape a sh:NodeShape ;
+    sh:xone ( dcatapfeeds:UpsertShape dcatapfeeds:DeleteShape ) .
+
+dcatapfeeds:UpsertShape a sh:NodeShape ;
+    sh:closed true ;
+    sh:ignoredProperties (rdf:type) ;
+    sh:targetClass as:Create, as:Update ;
+    sh:property [
+        sh:path as:object ;
+        sh:node dcatapfeeds:EntityShape ;
+        sh:minCount 1 ;
+        sh:maxCount 1 ;
+    ] ;
+    sh:property dcatapfeeds:PublishedPropertyShape .
+		
+dcatapfeeds:DeleteShape a sh:NodeShape ;
+    sh:closed true ;
+    sh:ignoredProperties (rdf:type) ;
+    sh:targetClass as:Delete ;
+    sh:property [
+        sh:path as:object ;
+        sh:nodeKind sh:IRI ;
+        sh:minCount 1 ;
+        sh:maxCount 1 ;
+    ] ;
+    sh:property dcatapfeeds:PublishedPropertyShape .
+
+dcatapfeeds:PublishedPropertyShape a sh:PropertyShape ;
+    sh:path as:published ;
+    sh:datatype xsd:dateTime ;
+    sh:minCount 0 ;
+    sh:maxCount 1 .
+
+
+dcatapfeeds:EntityShape a sh:NodeShape ;
+    sh:xone ( :Catalog_Shape :Dataset_Shape :Distribution_Shape :DataService_Shape :Agent_Shape :Kind_Shape :LicenseDocument_Shape ) .
+
+:Kind_Shape a sh:NodeShape ;
+    rdfs:label "Kind"@en ;
+    rdfs:comment “Placeholder shape for vcard:Kind, currently not present in DCAT-AP v3 shapes” ;
+    sh:targetClass vcard:Kind .
diff --git a/spec.bs b/spec.bs
index 899dee0..bd471e7 100644
--- a/spec.bs
+++ b/spec.bs
@@ -18,7 +18,7 @@ Abstract:
 
 # Publishing changes about DCAT-AP entities # {#feed}
 
-A DCAT-AP Feed is a Linked Data Event Stream with ActivityStream entities Create, Update and Deletes in it about the DCAT-AP entities in a catalog.
+A DCAT-AP Feed is a Linked Data Event Stream with ActivityStream entities Create, Update and Delete in it about the DCAT-AP entities in a catalog.
 DCAT-AP Feeds uses the [[!activitystreams-vocabulary]] to indicate the type of change.
 Three type of activities can be described: 
  * a Create (i) or an Update (ii), both upserting a set of quads, packaged in a named graph, in the harvester, and