From cdea641e19df6a4c547481600ccfc63044c807cc Mon Sep 17 00:00:00 2001
From: Hanna Fuehr <fuehr@itc.rwth-aachen.de>
Date: Tue, 5 Jul 2022 09:39:20 +0200
Subject: [PATCH] Update: Migrate resourceType structured data to linked data
(coscine/issues#2083)
---
.../ResourceTypeStructuralData.cs | 46 ++++++++++++++++++-
1 file changed, 44 insertions(+), 2 deletions(-)
diff --git a/src/SQL2Linked/Implementations/ResourceTypeStructuralData.cs b/src/SQL2Linked/Implementations/ResourceTypeStructuralData.cs
index 766787f..007e158 100644
--- a/src/SQL2Linked/Implementations/ResourceTypeStructuralData.cs
+++ b/src/SQL2Linked/Implementations/ResourceTypeStructuralData.cs
@@ -6,10 +6,52 @@ namespace SQL2Linked.Implementations
{
public class ResourceTypeStructuralData : StructuralData<ResourceType, ResourceTypeModel>
{
+ public readonly string ResourceTypeUrlPrefix = "https://purl.org/coscine/resourcetype";
+ public readonly Uri RdfType = new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type");
+ public readonly Uri DcatDataService = new ("http://www.w3.org/ns/dcat#DataService");
+
public override IEnumerable<IGraph> ConvertToLinkedData(IEnumerable<ResourceType> entries)
{
- // ToDo: Implement
- throw new NotImplementedException();
+
+ var graphs = new List<IGraph>();
+
+ foreach (var entry in entries)
+ {
+ var resourceTypeGraphName = $"{ResourceTypeUrlPrefix}/{entry.Id}";
+ var graph = RdfStoreConnector.GetGraph(resourceTypeGraphName);
+
+ // check if a triple with a dcat:DataService already exists in the resourcetype graph
+ var getTriples = graph.GetTriplesWithObject(DcatDataService);
+
+ if (!getTriples.Any())
+ {
+ // check if a resourcetype graph already exists
+ var exists = RdfStoreConnector.HasGraph(resourceTypeGraphName);
+
+ if (!exists)
+ {
+ RdfStoreConnector.CreateNamedGraph(resourceTypeGraphName);
+ }
+
+ graph.Assert(
+ new Triple(
+ graph.CreateBlankNode(),
+ graph.CreateUriNode(RdfType),
+ graph.CreateUriNode(DcatDataService)
+ )
+ );
+
+ graphs.Add(graph);
+
+ Console.WriteLine($"Will migrate resource type '{entry.DisplayName}' with id '{entry.Id}'.");
+ }
+ else
+ {
+ Console.WriteLine($"Will NOT migrate resource type '{entry.DisplayName}' with id '{entry.Id}'.");
+ }
+ }
+ return graphs;
}
}
+
}
\ No newline at end of file
--
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