src/SQL2Linked/Implementations/ResourceTypeStructuralData.cs

@@ -6,10 +6,67 @@ 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 readonly Uri dctermsTitle = new("http://purl.org/dc/terms/title");
+
         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 = $"{ResourceTypeUrlPrefix}/{entry.Id}";
+                var graph = RdfStoreConnector.GetGraph(resourceTypeGraphName);
+
+                // check if a triple with a dcat:DataService already exists in the resourcetype graph
+                var getTriplesDcatDataService = graph.GetTriplesWithObject(DcatDataService);
+
+                if (!getTriplesDcatDataService.Any())
+                {
+                    graph.Assert(
+                        new Triple(
+                            graph.CreateUriNode(new Uri(resourceTypeGraphName)),
+                            graph.CreateUriNode(RdfType),
+                            graph.CreateUriNode(DcatDataService)
+                        )
+                    );
+
+                    Console.WriteLine($"For resource type '{entry.DisplayName}' will migrate triple '{graph.BaseUri}' a dcat:DataService. ");
+                }
+                else
+                {
+                    Console.WriteLine($"For resource type '{entry.DisplayName}' will NOT migrate triple '{graph.BaseUri}' a dcat:DataService. ");
+                }
+
+                // check if a triple with dcterms:title '{entry.DisplayName}' already exists in the role graph
+                var getTriplesDctermsTitle = graph.GetTriplesWithPredicate(dctermsTitle);
+
+                if (!getTriplesDctermsTitle.Any())
+                {
+                    graph.Assert(
+                        new Triple(
+                            graph.CreateUriNode(new Uri(resourceTypeGraphName)),
+                            graph.CreateUriNode(dctermsTitle),
+                            graph.CreateLiteralNode(entry.DisplayName)
+                        )
+                    );
+
+                    Console.WriteLine($"For resource type '{entry.DisplayName}' will migrate triple '{graph.BaseUri}' dcterms:title '{entry.DisplayName}'. ");
                 }
+                else
+                {
+                    Console.WriteLine($"For resource type '{entry.DisplayName}' will NOT migrate triple '{graph.BaseUri}' dcterms:title '{entry.DisplayName}'. ");
                 }
+                if (!getTriplesDcatDataService.Any() || !getTriplesDctermsTitle.Any())
+                {
+                    graphs.Add(graph);
+                }
+            }
+            return graphs;
+        }
+    }
+    
 }
\ No newline at end of file

src/SQL2Linked/Implementations/RoleStructuralData.cs

@@ -6,10 +6,65 @@ namespace SQL2Linked.Implementations
 {
     public class RoleStructuralData : StructuralData<Role, RoleModel>
     {
+        public readonly string RoleUrlPrefix = "https://purl.org/coscine/roles";
+        public readonly Uri RdfType = new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type");
+        public readonly Uri orgRole = new("http://www.w3.org/ns/org#Role");
+        public readonly Uri dctermsTitle = new("http://purl.org/dc/terms/title");
+
         public override IEnumerable<IGraph> ConvertToLinkedData(IEnumerable<Role> entries)
         {
-            // ToDo: Implement
-            throw new NotImplementedException();
+            var graphs = new List<IGraph>();
+
+            foreach (var entry in entries)
+            {
+                var roleGraphName = $"{RoleUrlPrefix}/{entry.Id}";
+                var graph = RdfStoreConnector.GetGraph(roleGraphName);
+
+                // check if a triple with a org:role already exists in the role graph
+                var getTriplesOrgRole = graph.GetTriplesWithObject(orgRole);
+
+                if (!getTriplesOrgRole.Any())
+                {
+                    graph.Assert(
+                        new Triple(
+                            graph.CreateUriNode(new Uri(roleGraphName)),
+                            graph.CreateUriNode(RdfType),
+                            graph.CreateUriNode(orgRole)
+                        )
+                    );
+
+                    Console.WriteLine($"For role '{entry.DisplayName}' will migrate triple '{graph.BaseUri}' a org:Role. ");
+                }
+                else
+                {
+                    Console.WriteLine($"For role '{entry.DisplayName}' will NOT migrate triple '{graph.BaseUri}' a org:Role. ");
+                }
+
+                // check if a triple with dcterms:title '{entry.DisplayName}' already exists in the role graph
+                var getTriplesDctermsTitle = graph.GetTriplesWithPredicate(dctermsTitle);
+
+                if (!getTriplesDctermsTitle.Any())
+                {
+                    graph.Assert(
+                        new Triple(
+                            graph.CreateUriNode(new Uri(roleGraphName)),
+                            graph.CreateUriNode(dctermsTitle),
+                            graph.CreateLiteralNode(entry.DisplayName)
+                        )
+                    );
+
+                    Console.WriteLine($"For role '{entry.DisplayName}' will migrate triple '{graph.BaseUri}' dcterms:title '{entry.DisplayName}'. ");
+                }
+                else
+                {
+                    Console.WriteLine($"For role '{entry.DisplayName}' will NOT migrate triple '{graph.BaseUri}' dcterms:title '{entry.DisplayName}'. ");
+                }
+                if (!getTriplesOrgRole.Any() || !getTriplesDctermsTitle.Any())
+                {
+                    graphs.Add(graph);
+                }
+            }
+            return graphs;
         }
     }
 }
\ No newline at end of file

src/SQL2Linked/Implementations/UserStructuralData.cs

@@ -25,17 +25,9 @@ namespace SQL2Linked.Implementations
 
                 if (!getTriples.Any())
                 {
-                    // check if a user graph already exists
-                    var exists = RdfStoreConnector.HasGraph(userGraphName);
-
-                    if (!exists)
-                    {
-                        RdfStoreConnector.CreateNamedGraph(userGraphName);
-                    }
-
                     graph.Assert(
                         new Triple(
-                            graph.CreateBlankNode(),
+                            graph.CreateUriNode(new Uri(userGraphName)),
                             graph.CreateUriNode(RdfType),
                             graph.CreateUriNode(FoafPerson)
                         )

src/SQL2Linked/SQL2Linked.csproj

@@ -5,7 +5,7 @@
     <TargetFramework>net6.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
-  <Version>0.1.1</Version></PropertyGroup>
+  <Version>0.1.2</Version></PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Coscine.Database" Version="2.*-*" />