[traceRetrieval] implemented enum parsing

src/participation-hub/business-logic-microservice/app/_add_use_case_scripts/debug/sample_trace.json

+{
+    "ApplicationType": "debug",
+    "docType": "pizza",
+    "id": 1,
+    "dough": {
+        "type": "wheat",
+        "spinach": false
+    },
+    "toppings": [
+        {
+            "name": "cheese",
+            "price": 0.99
+        }
+    ],
+    "name": "Margherita"
+}
\ No newline at end of file

src/participation-hub/business-logic-microservice/app/_add_use_case_scripts/debug/tables/add_pizza_table.py

@@ -64,6 +64,7 @@ def main(use_case: str):
         {
             "UniqueID": "id",
             "name": "name",
+            "nameIndex": "enum(name)",
             "doughType": "dough//type",
             "hasSpinach": "dough//spinach",
             "firstTopping": "toppings[0]//name",
@@ -81,10 +82,11 @@ def main(use_case: str):
                 "name": "Price_Layer",
                 "properties": [
                     "UniqueID",
-                    "firstToppingPrice"
+                    "firstToppingPrice",
+                    "nameIndex"
                 ],
                 "cluster_properties": [
-                    "firstToppingPrice"
+                    "firstToppingPrice",
                 ]
             },
             {

src/transaction-hub-in/trace-retrieval-microservice/app/messaging/rest_fetcher.py

@@ -2,23 +2,48 @@ from security.token_manager import TokenManager
 import network_constants
 
 from typing import List
-import json, requests
+import json
+import requests
+
 
 class RestFetcher:
+
+    def fetch_enum_value(self, use_case: str, table: str, enum_name: str, enum_value: str) -> int:
+        jwt_token = TokenManager.getInstance().getToken()
+        url = f'https://{network_constants.BUSINESS_LOGIC_HOSTNAME}:{network_constants.BUSINESS_LOGIC_REST_PORT}/api/use-cases/{use_case}/tables/{table}/enum/{enum_name}?value={enum_value}'
+        print(f"calling {url}")
+
+        # query tables for use-case
+        url = url
+        response = requests.put(
+            url,
+            verify=False,
+            proxies={"http": None, "https": None},
+            headers={"Authorization": f"Bearer {jwt_token}"},
+        )
+
+        if response.status_code != 200:
+            raise ValueError(
+                f"Error while retrieving Enum information.\tStatus-code:{response.status_code}")
+
+        enum = json.loads(response.text)
+        return enum["index"]
+
     def fetch_schema_information(self, use_case: str) -> List:
         jwt_token = TokenManager.getInstance().getToken()
-        
+
         # query tables for use-case
         url = f'https://{network_constants.BUSINESS_LOGIC_HOSTNAME}:{network_constants.BUSINESS_LOGIC_REST_PORT}/api/use-cases/{use_case}/tables'
         response = requests.get(
-                url,
-                verify = False, 
-                proxies = { "http":None, "https":None },
-                headers = { "Authorization": f"Bearer {jwt_token}"}
+            url,
+            verify=False,
+            proxies={"http": None, "https": None},
+            headers={"Authorization": f"Bearer {jwt_token}"}
         )
 
         if response.status_code != 200:
-            raise ValueError(f"Error while retrieving schema information.\tStatus-code:{response.status_code}")
+            raise ValueError(
+                f"Error while retrieving schema information.\tStatus-code:{response.status_code}")
 
         tables = json.loads(response.text)
         return tables