move parsing of the systems hit JSON path to the config

web/app/services/ranking_service.py

@@ -8,7 +8,6 @@
 from app.models import Result, System, db
 from app.services.interleave_service import interleave_rankings
 from flask import current_app
-from jsonpath_ng import parse
 from pytz import timezone
 
 client = docker.DockerClient(base_url="unix://var/run/docker.sock")
@@ -106,8 +105,7 @@ def query_system(container_name, query, rpp, page, session_id, type="EXP"):
     if hits_path is None:
         hits = result["itemlist"]
     else:
-        jsonpath_expr = parse(hits_path)
-        hits = jsonpath_expr.find(result)[0].value
+        hits = hits_path.find(result)[0].value
 
     if isinstance(hits[0], dict):
         item_dict = {
@@ -160,8 +158,7 @@ def build_id_map(container_name, ranking, result):
             "docid", "docid"
         )
         if hits_path:
-            jsonpath_expr = parse(hits_path)
-            matches = jsonpath_expr.find(result)
+            matches = hits_path.find(result)
             assert len(matches) == 1
 
             id_map = {hit[docid_name]: hit for hit in matches[0].value}
@@ -205,8 +202,7 @@ def build_simple_response(ranking_obj):
         "hits_path"
     )
     if base_path:
-        jsonpath_expr = parse(base_path)
-        matches = jsonpath_expr.find(result_base)
+        matches = base_path.find(result_base)
         assert len(matches) == 1
         matches[0].value = hits
         return result_base

web/config.py

@@ -1,6 +1,7 @@
 import json
 import os
 from datetime import datetime
+from jsonpath_ng import parse
 
 basedir = os.path.abspath(os.path.dirname(__file__))
 
@@ -16,7 +17,6 @@ def load_as_list(env_var):
     if os.environ.get(env_var):
         for list_item in os.environ.get(env_var).split(" "):
             variable_list.append(list_item)
-
     return variable_list
 
 
@@ -78,6 +78,11 @@ class Config:
                 if SYSTEMS_CONFIG[system].get("base"):
                     RANKING_BASELINE_CONTAINER = system
 
+            # JSON Path
+            if SYSTEMS_CONFIG[system].get("hits_path"):
+                hits_path = parse(SYSTEMS_CONFIG[system]["hits_path"])
+                SYSTEMS_CONFIG[system]["hits_path"] = hits_path
+
     else:
         # Ranking
         RANKING_CONTAINER_NAMES = load_as_list("RANKSYS_LIST")  # container_list