issue #8: made rdfilesystemstorage raise notimplemented

debug.sh

@@ -1,6 +1,5 @@
 #!/bin/bash
-
-APP_SAVE=$FLASK_APP
 FLASK_APP=metadatastorageapi
-python -m flask run
+APP_SAVE=$FLASK_APP
+python -m flask run --debugger
 export FLASK_APP=$APP_SAVE

metadatastorageapi/__init__.py

@@ -8,7 +8,7 @@
 from .blueprint import BLUEPRINT
 
 class Configuration(metaclass=MetaFlaskEnv):
-    ENV_PREFIX='METADATA_STORAGE_API_'
+    ENV_PREFIX='MSAPI_'
     DEBUG = False
     DEFER_CONFIG = False
 

metadatastorageapi/blueprint/storagelib/rdffilesystemstorage.py

@@ -1,25 +1,37 @@
 
-from rdflib import Graph, URIRef
+from rdflib import Graph, URIRef, Namespace
+from rdflib.namespace import RDF
 
 from .storagesystem import StorageSystem
 
 class RDFFileSystemStorage(StorageSystem):
     def __init__(self, file_path):
-        self.graph = Graph().parse(file_path)
+        self._namespaces = {"dc":Namespace("http://purl.org/dc/elements/1.1/"),
+                            "dcterms":Namespace("http://purl.org/dc/terms/"),
+                            "ldr":Namespace("http://lib.uchicago.edu/ldr/")}
+        self._graph = Graph().parse(file_path)
 
     def find_root(self):
-        root = URIRef("http://metadatastorage.lib.uchicago.edu/collection/ldr")
-        print([x for x in self.graph.subjects() if x == root])
-        return []
+        root = URIRef(self._namespaces["ldr"]["ldr"])
+        print(root)
+        query = self._graph.query(
+            """SELECT DISTINCT ?aname ?bname
+            WHERE {
+                ?a dc:isPartOf "ldr".
+            }
+            """
+        )
+        print(query)
+        raise NotImplementedError
 
     def find_specific_collection(self, identifier):
-        return []
+        raise NotImplementedError
 
     def find_extension(self, extension):
-        return None
+        raise NotImplementedError
 
     def find_collection_extensions(self, collection_id):
-        return []
+        raise NotImplementedError
 
     def find_core_metadata(self, collection_id):
-        return {}
+        raise NotImplementedError