Fixes for Presentation 1

middleware/app_be/services/minioservice.py

@@ -85,9 +85,12 @@ class MinioService:
             r = requests.get(settings.AWS_HOST + "?list")
             root = ET.fromstring(r.content)
             list = []
+            cnt = 0
             for child in root.iter('{http://s3.amazonaws.com/doc/2006-03-01/}Contents'):
                 list.append(child.find('{http://s3.amazonaws.com/doc/2006-03-01/}Key').text)
-
+                cnt = cnt + 1
+            if cnt == 0:
+                return True
             body = "<Delete>"
             for key in list:
                 body += "<Object><Key>" + key + "</Key></Object>"

middleware/app_be/services/mongodbservice.py

@@ -30,17 +30,18 @@ class MongoDBService:
 
     @staticmethod
     def getSingle(identifier):
-
-        instance = MongoManager.getInstance()
-
-        db = instance.AIC
-        col = db.metadata
         metadata = None
         try:
+            instance = MongoManager.getInstance()
+
+            db = instance.AIC
+            col = db.metadata
+            metadata = None
             resp = col.find({"identifier": identifier})
             metadata = resp[0]
         except:
             print("Could not find Metadata")
+
         if metadata is None:
             return None
         else:

middleware/app_be/services/wrapperservice.py

@@ -6,6 +6,11 @@ class WrapperService:
     @staticmethod
     def wrap_file(file_bytes: bytes) -> str:
         file_encoded_b64 = base64.b64encode(file_bytes)
+        print('b64 gemacht')
+        print(file_encoded_b64)
+        print()
+        print('utf8- decodiert')
+        print(file_encoded_b64.decode())
         return file_encoded_b64.decode()
 
     @staticmethod