Merge pull request #164 from sldouglas-nist/add_dictionary_entry_inhe…

…rent_iri_generator

Add UUID generator incorporating dictionary entry keys

case_utils/inherent_uuid.py

@@ -96,6 +96,15 @@
 )
 
 
+def dictionary_entry_inherence_uuid(
+    uco_object_uuid_namespace: uuid.UUID, key_name: str, *args: Any, **kwargs: Any
+) -> uuid.UUID:
+    """
+    This function returns a UUIDv5 for dictionary entries, incorporating the key string's value.
+    """
+    return uuid.uuid5(uco_object_uuid_namespace, key_name)
+
+
 def inherence_uuid(n_thing: URIRef, *args: Any, **kwargs: Any) -> uuid.UUID:
     """
     This function returns a UUIDv5 for any OWL Thing, that can be used as a UUID Namespace in further `uuid.uuidv5` calls.
@@ -152,6 +161,47 @@ def facet_inherence_uuid(
     return uuid.uuid5(uco_object_inherence_uuid, str(n_facet_class))
 
 
+def get_dictionary_entry_uriref(
+    n_dictionary: URIRef,
+    n_dictionary_entry_class: URIRef,
+    key_name: str,
+    *args: Any,
+    namespace: Namespace,
+    **kwargs: Any
+) -> URIRef:
+    """
+    :param namespace: An RDFLib Namespace object to use for prefixing the Dictionary IRI with a knowledge base prefix IRI.
+    :type namespace rdflib.Namespace:
+
+    :param n_dictionary_entry_class: Assumed to be a "Proper Dictionary", as defined in UCO Issue 602.
+
+    References
+    ==========
+    * https://github.com/ucoProject/UCO/issues/602
+
+    Examples
+    ========
+    A dictionary has to have an entry with key "foo". What is the IRI of the dictionary entry?
+
+    >>> from case_utils.namespace import NS_UCO_TYPES
+    >>> ns_kb = Namespace("http://example.org/kb/")
+    >>> n_dictionary = ns_kb["Dictionary-eb7e68d8-94db-4071-86fa-a51a33dc4a97"]
+    >>> n_dictionary_entry = get_dictionary_entry_uriref(n_dictionary, NS_UCO_TYPES.DictionaryEntry, "foo", namespace=ns_kb)
+    >>> n_dictionary_entry
+    rdflib.term.URIRef('http://example.org/kb/DictionaryEntry-6ce6b412-6a3a-5ebf-993a-9df2c80d2107')
+    """
+    uco_object_uuid_namespace: uuid.UUID = inherence_uuid(n_dictionary)
+    dictionary_entry_uuid = dictionary_entry_inherence_uuid(
+        uco_object_uuid_namespace, key_name
+    )
+
+    dictionary_entry_class_local_name = str(n_dictionary_entry_class).rsplit("/")[-1]
+
+    return namespace[
+        dictionary_entry_class_local_name + "-" + str(dictionary_entry_uuid)
+    ]
+
+
 def get_facet_uriref(
     n_uco_object: URIRef,
     n_facet_class: URIRef,