L2SS-819: prevent exception raising if tango device is not responding

tangostationcontrol/tangostationcontrol/devices/sdp/statistics_collector.py

@@ -110,10 +110,7 @@ class SSTCollector(StatisticsCollector):
         self.parameters["subbands_calibrated"][input_index]   = fields.subband_calibrated_flag
 
         # add tango values to packet
-        try:
         self.parse_device_attributes(device)
-        except Exception as e:
-            raise Exception from e 
     
     def parse_device_attributes(self, device: DeviceProxy):
 
@@ -129,13 +126,10 @@ class SSTCollector(StatisticsCollector):
                 self.parameters["rcu_band_select"] = device.RCU_Band_Select_R
                 self.parameters["rcu_dth_on"] = device.RCU_DTH_on_R
             except DevFailed as e: 
-                if e.args[0].reason in ['Attribute not found', 'API_AttrNotAllowed', 'API_AttrNotFound']:
                 logger.warning(f"Device {device.name()} not responding.")
                 self.parameters["rcu_attenuator_dB"] = None
                 self.parameters["rcu_band_select"] = None
                 self.parameters["rcu_dth_on"] = None   
-                else:
-                    raise Exception from e     
 
 class XSTCollector(StatisticsCollector):
     """ Class to process XST statistics packets.