added msg to know when we are current with a datalogger

examples/datalogger.py

@@ -169,6 +169,11 @@ class DataLogger:
                 self.last_collect['NextRecNbr'] = data[0]['BegRecNbr'] + data[0]['NbrOfRecs'] 
                 
                 self.emit_all(tbl, data[0]['RecFrag'])
+                
+                if more_flag:
+                    self.log.info("{}.{} has more records to fetch".format(self.metric_id, tbl.name))
+                else:
+                    self.log.info("{}.{} is current".format(self.metric_id, tbl.name))
                 #if self.data_callback:              
                     #for rec in data[0]['RecFrag']:
                         #self.data_callback(tbl.dic_of_sensorTags, rec)