New classes: (ontology) Metadata and Element

ontoScorer/metrics.py

@@ -43,8 +43,8 @@ class Metrics:
         methods = [
             ("class", "get_classes"),
             ("object_property", "get_object_properties"),
-            ("data_property", "get_data_properties"),
-            ("restriction", "get_restrictions"),
+            #("data_property", "get_data_properties"),
+            #("restriction", "get_restrictions"),
             ("individual", "get_individuals"),
             #("annotation", "get_annotations")
         ]

ontoScorer/ontology.py

@@ -13,47 +13,8 @@ from rdflib import Graph, RDF, RDFS, OWL
 from rdflib import URIRef, BNode
 from rdflib.namespace import split_uri
 
-
-#==============================================================================
-# Classes: Element, NamedElement and BlankElement
-#==============================================================================
-
-class Element:
-    def __init__(self, reference, graph):
-        self.reference = reference
-        self.graph = graph
-
-    def properties(self):
-        """Retrieve properties associated with the element."""
-        return list(self.graph.predicate_objects(subject=self.reference))
-
-    def name(self):
-        raise NotImplementedError("The method name() must be implemented by subclasses.")
-
-class NamedElement(Element):
-    def __init__(self, uri, graph):
-        super().__init__(uri, graph)
-        self.uri = uri
-
-    def __str__(self):
-        return str(self.uri)
-
-    def name(self):
-        _, element_name = split_uri(self.uri)
-        return element_name
-
-class BlankElement(Element):
-    def __init__(self, bnode, graph):
-        super().__init__(bnode, graph)
-        self.id = str(bnode)
-
-    def __str__(self):
-        return f"BNode: {self.id}"
-
-    def name(self):
-        return self.id
-
-
+from ontology_metadata import Metadata
+from ontology_element import Element, NamedElement, BlankElement
 
 #==============================================================================
 # Class: Ontology
@@ -94,7 +55,30 @@ class Ontology:
 
 
     #--------------------------------------------------------------------------
-    # Extracting Method(s)
+    # Metadata and Annotation Extraction
+    #--------------------------------------------------------------------------
+
+    def extract_metadata(self):
+        """Extract metadata from the ontology and return a Metadata object."""
+        version_info = self._get_version_info()  
+        namespaces = list(self.graph.namespaces())
+        return Metadata(version_info, namespaces)
+    
+    def _get_version_info(self):
+        pass # TODO
+        return -1
+
+
+    def get_annotations(self):
+        """Extract all annotation comments from the ontology."""
+        annotations = set()
+        for _, _, o in self.graph.triples((None, RDFS.label, None)):
+            annotations.add(str(o))
+        return annotations
+    
+
+    #--------------------------------------------------------------------------
+    # Element Extraction
     #--------------------------------------------------------------------------
     
     def get_classes(self):
@@ -109,10 +93,6 @@ class Ontology:
         """Extract all data properties from the ontology."""
         return self._get_elements_of_type(OWL.DatatypeProperty)
 
-    def get_restrictions(self):
-        """Extract all restrictons from the ontology."""
-        return self._get_elements_of_type(OWL.Restriction)
-
     def get_individuals(self) -> list:
         """Extract all individuals from the ontology, including elements explicitly typed as owl:Individual, 
         owl:NamedIndividual or any class."""
@@ -130,12 +110,20 @@ class Ontology:
         return list(set(individuals))  # Ensuring uniqueness
     
 
-    def get_annotations(self):
-        """Extract all annotation comments from the ontology."""
-        annotations = set()
-        for _, _, o in self.graph.triples((None, RDFS.label, None)):
-            annotations.add(str(o))
-        return annotations
+    #--------------------------------------------------------------------------
+    # Taxonomic Relation Extraction (Hierarchical Structure)
+    #--------------------------------------------------------------------------
+    
+    def get_taxonomic_relations(self):
+        return []
+
+    #--------------------------------------------------------------------------
+    # Non-Taxonomic Relation Extraction
+    #--------------------------------------------------------------------------
+
+    def get_restrictions(self):
+        """Extract all restrictons from the ontology."""
+        return self._get_elements_of_type(OWL.Restriction)
 
 
     #--------------------------------------------------------------------------

ontoScorer/ontology_element.py

+#!/usr/bin/python3.10
+# -*-coding:Utf-8 -*
+
+#==============================================================================
+# Ontology Elements
+#------------------------------------------------------------------------------
+# Represents various elements (Classes, Object Properties, Data Properties, 
+# Individuals) within an ontology.
+#==============================================================================
+
+from rdflib import URIRef, BNode
+from rdflib.namespace import split_uri
+
+class Element:
+    def __init__(self, reference, graph):
+        self.reference = reference
+        self.graph = graph
+
+    def properties(self):
+        """Retrieve properties associated with the element."""
+        return list(self.graph.predicate_objects(subject=self.reference))
+
+    def name(self):
+        raise NotImplementedError("The method name() must be implemented by subclasses.")
+
+class NamedElement(Element):
+    def __init__(self, uri, graph):
+        super().__init__(uri, graph)
+        self.uri = uri
+
+    def __str__(self):
+        return str(self.uri)
+
+    def name(self):
+        _, element_name = split_uri(self.uri)
+        return element_name
+
+class BlankElement(Element):
+    def __init__(self, bnode, graph):
+        super().__init__(bnode, graph)
+        self.id = str(bnode)
+
+    def __str__(self):
+        return f"BNode: {self.id}"
+
+    def name(self):
+        return self.id
+ 

ontoScorer/ontology_metadata.py

+#!/usr/bin/python3.10
+# -*-coding:Utf-8 -*
+
+#==============================================================================
+# Metadata Container
+#------------------------------------------------------------------------------
+# Holds metadata (Imports, Versions, Namespaces) from RDF/OWL ontologies.
+#==============================================================================
+
+class Metadata:
+    
+    def __init__(self, version_info, namespaces):
+        """Initialize with metadata information."""
+        self.version_info = version_info
+        self.namespaces = namespaces
+        
+    # TODO: add methods to print or manage metadata, if needed.
+ 

tests/test_ontology.py

@@ -57,9 +57,10 @@ class TestOntology(unittest.TestCase):
         self.assertIn("orbit", object_properties_names)
 
     def test_get_data_properties(self):
-        data_properties_names = {dp.name() for dp in self.onto1.get_data_properties()}
-        
-        self.assertEqual(len(data_properties_names), 0)
+        data_properties_names_1 = {dp.name() for dp in self.onto1.get_data_properties()}
+        data_properties_names_2 = {dp.name() for dp in self.onto2.get_data_properties()}
+        self.assertEqual(len(data_properties_names_1), 0)
+        self.assertEqual(len(data_properties_names_2), 0)
 
     def test_get_restrictions(self):
         restrictions = self.onto1.get_restrictions()