[doc/rdf] Cleanup code examples

Author: mpsonntag

doc/rdf/rdf_generator.py

@@ -1,33 +1,33 @@
-from rdflib import Graph, BNode, Literal, Namespace
+from rdflib import Graph, BNode, Literal
 from rdflib.namespace import XSD
 
-odml = Namespace("http://g-node/odml#")
+from odml.tools.rdf_converter import ODML_NS
 
 g = Graph()
 
 doc = BNode("d1")
 s1 = BNode("s1")
 p12 = BNode("p1")
 
-g.add((doc, odml.version, Literal(1.1)))
-g.add((doc, odml.docversion, Literal(42)))
-g.add((doc, odml.author, Literal('D. N. Adams')))
-g.add((doc, odml.date, Literal('1979-10-12', datatype=XSD.date)))
-g.add((doc, odml.hasSection, s1))
+g.add((doc, ODML_NS.version, Literal(1.1)))
+g.add((doc, ODML_NS.docversion, Literal(42)))
+g.add((doc, ODML_NS.author, Literal('D. N. Adams')))
+g.add((doc, ODML_NS.date, Literal('1979-10-12', datatype=XSD.date)))
+g.add((doc, ODML_NS.hasSection, s1))
 
-g.add((s1, odml.property, p12))
-g.add((s1, odml.type, Literal('crew')))
-g.add((s1, odml.description, Literal('Information on the crew')))
-g.add((s1, odml.name, Literal('TheCrew')))
+g.add((s1, ODML_NS.property, p12))
+g.add((s1, ODML_NS.type, Literal('crew')))
+g.add((s1, ODML_NS.description, Literal('Information on the crew')))
+g.add((s1, ODML_NS.name, Literal('TheCrew')))
 
-g.add((p12, odml.hasValue, Literal('[Arthur Philip Dent,Zaphod Beeblebrox,Tricia Marie McMillan,Ford Prefect]')))
-g.add((p12, odml.description, Literal('List of crew members names')))
-g.add((p12, odml.dtype, Literal('person')))
-g.add((p12, odml.name, Literal('NameCrewMembers')))
+content = '[Arthur Philip Dent,Zaphod Beeblebrox,Tricia Marie McMillan,Ford Prefect]'
+g.add((p12, ODML_NS.hasValue, Literal(content)))
+g.add((p12, ODML_NS.description, Literal('List of crew members names')))
+g.add((p12, ODML_NS.dtype, Literal('person')))
+g.add((p12, ODML_NS.name, Literal('NameCrewMembers')))
 
 res = g.serialize(format='application/rdf+xml').decode("utf-8")
 print(res)
 
-f = open("generated_ex1.xml", "w")
-f.write(res)
-f.close()
+with open("generated_odml_rdf.xml", "w") as f:
+    f.write(res)

doc/rdf/sparql_example_queries.py

@@ -1,7 +1,11 @@
-from rdflib import Graph, Namespace, RDF
+from rdflib import Graph, RDF
 from rdflib.plugins.sparql import prepareQuery
 
-resource = "./python-odml/doc/rdf/example_data/odml_RDF_example_A.ttl"
+from odml.tools.rdf_converter import ODML_NS
+
+rdf_namespace = {"odml": ODML_NS, "rdf": RDF}
+
+resource = "./odml_RDF_example_A.ttl"
 
 g = Graph()
 g.parse(resource, format='turtle')
@@ -18,8 +22,7 @@
                ?p odml:hasUnit "%" .
                ?v rdf:type rdf:Bag .
                ?v rdf:li "20.0" .
-            }""", initNs={"odml": Namespace("https://g-node.org/odml-rdf#"),
-                          "rdf": RDF})
+            }""", initNs=rdf_namespace)
 
 g = Graph()
 g.parse(resource, format='turtle')
@@ -46,8 +49,7 @@
                    ?p1 odml:hasName "CellType" .
                    ?p1 odml:hasValue ?v1 .   
                    ?v1 rdf:li "P-unit" .                      
-                }""", initNs={"odml": Namespace("https://g-node.org/odml-rdf#"),
-                              "rdf": RDF})
+                }""", initNs=rdf_namespace)
 
 # select d.* from dataset d, CellProperties s, EOD Frequency c where c.unit = 'Hz'
 g = Graph()
@@ -64,8 +66,7 @@
                    ?p odml:hasUnit "Hz" .    
                    ?v rdf:type rdf:Bag .
                    ?v rdf:li ?value .                      
-                }""", initNs={"odml": Namespace("https://g-node.org/odml-rdf#"),
-                              "rdf": RDF})
+                }""", initNs=rdf_namespace)
 
 print("q1")
 for row in g.query(q1):