[FIX] Fix the bug of reload_market

examples/example_market_db/example_db.py

@@ -13,6 +13,7 @@ curr_root = os.path.dirname(os.path.abspath(__file__))
 
 
 def prepare_learnware(learnware_num=10):
+    np.random.seed(2023)
     for i in range(learnware_num):
         dir_path = os.path.join(curr_root, "learnware_pool", "svm_%d" % (i))
         os.makedirs(dir_path, exist_ok=True)
@@ -171,7 +172,7 @@ def test_stat_search():
 
 
 if __name__ == "__main__":
-    learnware_num = 5
+    learnware_num = 10
     # prepare_learnware(learnware_num)
 
     # test_market()

learnware/learnware/utils.py

@@ -50,4 +50,5 @@ def get_stat_spec_from_config(stat_spec: dict) -> BaseStatSpecification:
             f"Statistic specification must be type of BaseStatSpecification, not {BaseStatSpecification.__class__.__name__}"
         )
     stat_spec_inst.load(stat_spec["file_name"])
+    
     return stat_spec["class_name"], stat_spec_inst

learnware/market/database_ops.py

@@ -1,6 +1,7 @@
 import os
 import json
 import sqlite3
+from copy import deepcopy
 
 from ..logger import get_module_logger
 from ..learnware import get_learnware_from_dirpath
@@ -79,9 +80,10 @@ def load_market_from_db(cur):
         new_learnware = get_learnware_from_dirpath(
             id=id, semantic_spec=semantic_spec_dict, learnware_dirpath=folder_path
         )
-        learnware_list[id] = new_learnware
+        learnware_list[id] = deepcopy(new_learnware)
         zip_list[id] = zip_path
-        folder_list = folder_path
+        folder_list[id] = folder_path
         max_count = max(max_count, int(id))
+
     LOGGER.info("Market Reloaded from DB.")
     return learnware_list, zip_list, folder_list, max_count + 1

learnware/market/easy.py

@@ -25,7 +25,7 @@ class EasyMarket(BaseMarket):
         self.learnware_folder_list = {}
         self.count = 0
         self.semantic_spec_list = C.semantic_specs
-        self.reload_market()
+        self.reload_market()        
         logger.info("Market Initialized!")
 
     def reload_market(self) -> bool:
@@ -373,7 +373,7 @@ class EasyMarket(BaseMarket):
         if "RKMEStatSpecification" not in user_info.stat_info:
             return None, learnware_list, None
         else:
-            user_rkme = user_info.stat_info["RKMEStatSpecification"]
+            user_rkme = user_info.stat_info["RKMEStatSpecification"]            
             sorted_dist_list, single_learnware_list = self._search_by_rkme_spec_single(learnware_list, user_rkme)
             weight_list, mixture_learnware_list = self._search_by_rkme_spec_mixture(
                 learnware_list, user_rkme, search_num