diff --git a/common/global_call.py b/common/global_call.py
index 38cb9c4bce75a7f55ae628216a28112f6551e498..06e8d9664c1369e0a70fb178f6f4cb3e4723c8c9 100644
--- a/common/global_call.py
+++ b/common/global_call.py
@@ -73,6 +73,23 @@ class GlobalCall:
         else:
             return default
 
+    @staticmethod
+    def get_bool(k , default):
+        cfg = Config.get_json_dict()
+        arr = k.strip().split('.')
+
+        while 1 < len(arr):
+            if arr[0] not in cfg:
+                return default
+
+            cfg = cfg[arr[0]]
+            arr.remove(arr[0])
+
+        if arr[0] in cfg:
+            return bool(cfg[arr[0]])
+        else:
+            return default
+
     @staticmethod
     def get_json_value(k , default, cfg = Config.get_json_dict()):
         '''