404 if layers/nodes dont exist (#11)

src/data-hub/semantic-linking-microservice/app/configs/swagger.yml

@@ -60,6 +60,8 @@ paths:
           description: "Successful operation"
           schema:
             $ref: "#/definitions/Node"
+        '404':
+          description: "No nodes found"
   # endregion nodes
 
   # Layers region
@@ -101,6 +103,8 @@ paths:
           description: "Successful operation"
           schema:
             $ref: "#/definitions/Layer"
+        '404':
+          description: "Layer not found"
 
   /use-cases/{use_case}/layers:
     get:
@@ -109,7 +113,7 @@ paths:
       operationId: "routes.layers.get_by_use_case"
       tags:
         - "Layers"
-      summary: "Get single layer data"
+      summary: "Get all layer data for single use case"
       parameters:
         - name: "use_case"
           in: "path"
@@ -120,7 +124,9 @@ paths:
         '200':
           description: "Successful operation"
           schema:
-            $ref: "#/definitions/Layer"
+            $ref: "#/definitions/LayerCollection"
+        '404':
+          description: "No layers found"
   # endregion layers
 
 definitions:

src/data-hub/semantic-linking-microservice/app/configs/swagger_local.yml

@@ -52,6 +52,8 @@ paths:
           description: "Successful operation"
           schema:
             $ref: "#/definitions/Node"
+        '404':
+          description: "No nodes found"
   # endregion nodes
 
   # Layers region
@@ -90,13 +92,15 @@ paths:
           description: "Successful operation"
           schema:
             $ref: "#/definitions/Layer"
+        '404':
+          description: "Layer not found"
 
   /use-cases/{use_case}/layers:
     get:
       operationId: "routes.layers.get_by_use_case"
       tags:
         - "Layers"
-      summary: "Get single layer data"
+      summary: "Get all layer data for single use case"
       parameters:
         - name: "use_case"
           in: "path"
@@ -107,7 +111,9 @@ paths:
         '200':
           description: "Successful operation"
           schema:
-            $ref: "#/definitions/Layer"
+            $ref: "#/definitions/LayerCollection"
+        '404':
+          description: "No layers found"
   # endregion layers
 
 definitions:

src/data-hub/semantic-linking-microservice/app/db/repository.py

 import network_constants as netconst
 from database.MongoRepositoryBase import MongoRepositoryBase
-from db.entities.layer import Layer
-from db.entities.raw_data import Raw_Dataset
+from db.entities import Layer
 
 import pymongo
 import json
 from typing import List, Dict
 
+# init logging to file
+import logging
+LOG_FORMAT = ('%(levelname) -5s %(asctime)s %(name)s:%(funcName) -35s %(lineno) -5d:  %(message)s')
+logging.basicConfig(level=logging.INFO, format=LOG_FORMAT)
+LOGGER = logging.getLogger(__name__)
+
 class Repository(MongoRepositoryBase):
     '''This is a repository for MongoDb.'''
 
@@ -14,27 +19,12 @@ class Repository(MongoRepositoryBase):
         super().__init__(netconst.SEMANTIC_LINKING_DB_HOSTNAME,
                          netconst.SEMANTIC_LINKING_DB_PORT,
                          'semanticLinkingDb')
-        self._raw_dataset = 'raw_dataset'
         self._layer_collection = 'layers'
         self._layer_nodes_collection = 'layer_nodes'
         self._clusters_collection = 'clusters'
         self._time_slice_collection = 'time_slices'
 
 
-    #region Raw_data
-    def add_raw_data(self, dataset: Raw_Dataset):
-            super().insert_entry(self._raw_dataset, dataset.to_serializable_dict())
-
-    def get_all_raw_data(self) -> List[Raw_Dataset]:
-            entries = super().get_entries(self._raw_dataset)
-            return [Raw_Dataset(e) for e in entries]
-
-    def get_raw_data(self, usecase_name) -> Raw_Dataset:
-        entries = super().get_entries(self._raw_dataset, selection={'usecase_name': usecase_name})
-        return [Raw_Dataset(e) for e in entries]
-
-    # end region
-
     # region Layers
     def add_layer(self, layer: Layer):
         super().insert_entry(self._layer_collection, layer.to_serializable_dict(for_db=True))
@@ -50,7 +40,6 @@ class Repository(MongoRepositoryBase):
     def get_layer(self, layer_name) -> Layer:
         entries = super().get_entries(self._layer_collection, selection={'layer_name': layer_name})
         entries = [Layer(e) for e in entries]
-
         if entries is not None and len(entries) > 0:
             return entries[0]
         else:
@@ -60,9 +49,13 @@ class Repository(MongoRepositoryBase):
         entries = super().get_entries(self._layer_collection, selection={'use_case': use_case})
         return [Layer(e) for e in entries]
 
-    def get_layers_by_name_and_use_case(self, layer_name: str, use_case: str) -> List[Layer]:
+    def get_layers_by_name_and_use_case(self, layer_name: str, use_case: str) -> Layer:
         entries = super().get_entries(self._layer_collection, selection={'layer_name': layer_name, 'use_case': use_case})
-        return [Layer(e) for e in entries]
+        entries = list(entries) # materialize
+        if len(entries) > 1:
+            LOGGER.error(f"Use case + layer name was not unique for {use_case} and {layer_name}.")
+            return None
+        return Layer(entries[0]) if len(entries) == 1 else None
     
     def delete_layer(self, layer_name:str):
         collection = self._database[self._layer_collection]

src/data-hub/semantic-linking-microservice/app/routes/layers.py

@@ -17,17 +17,17 @@ def get_by_name(name):
         return Response(status=404)
 
 def get_by_name_and_use_case(name: str, use_case: str):
-    return [layer.to_serializable_dict() for layer in repo.get_layers_by_name_and_use_case(name, use_case)]
+    res = repo.get_layers_by_name_and_use_case(name, use_case)
+    if res is not None:
+        return res.to_serializable_dict() 
+    else:
+        return Response(status=404)
 
 def get_by_use_case(use_case: str):
-    return [layer.to_serializable_dict() for layer in repo.get_layers_by_use_case(use_case)]
+    res = [layer.to_serializable_dict() for layer in repo.get_layers_by_use_case(use_case)]
+    if res is not None and len(res) > 0:
+        return res
+    else:
+        return Response(status=404)
 
 #endregion
-
-#region nodes
-def get_nodes(name):
-    res = repo.get_layer_nodes(name)
-    # print(res)
-    return res
-
-#endregion nodes
\ No newline at end of file

src/data-hub/semantic-linking-microservice/app/routes/nodes.py

@@ -9,4 +9,8 @@ repo = Repository()
 #region nodes
 
 def nodes_for_use_case_and_layer(layer_name: str, use_case: str) -> List[Dict]:
-    return repo.get_layer_nodes_with_use_case(layer_name, use_case)
\ No newline at end of file
+    res = repo.get_layer_nodes_with_use_case(layer_name, use_case)
+    if res is not None and len(res) > 0:
+        return res
+    else:
+        return Response(status=404)
\ No newline at end of file