add leakage counter checking

Signed-off-by: Yuanzhe, Liu <[email protected]>

Author: yuazhe

platform/mellanox/mlnx-platform-api/sonic_platform/liquid_cooling.py

@@ -61,16 +61,14 @@ class LiquidCooling(LiquidCoolingBase):
 
     def __init__(self):
 
-        sensor_files = glob.glob(os.path.join(LIQUID_COOLING_SENSOR_PATH, "leakage*"))
+        self.leakage_sensors_num = utils.read_int_from_file("/var/run/hw-management/config/leakage_counter")
+        self.leakage_sensors = []
 
+        sensor_files = glob.glob(os.path.join(LIQUID_COOLING_SENSOR_PATH, "leakage*"))
         sensor_files.sort(key=lambda x: int(x.split("leakage")[-1]))
 
-        self.leakage_sensors_num = len(sensor_files)
-        self.leakage_sensors = []
-
-        for sensor_path in sensor_files:
+        for sensor_path in sensor_files[:self.leakage_sensors_num]:
             sensor_name = os.path.basename(sensor_path)
-            index = int(sensor_name.replace("leakage", ""))
             self.leakage_sensors.append(LeakageSensor(sensor_name, sensor_path))
 
         super(LiquidCooling, self).__init__(self.leakage_sensors_num, self.leakage_sensors)