Initial add of Sensor Base package file

setup.py

@@ -22,6 +22,7 @@
         'sonic_psu',
         'sonic_sfp',
         'sonic_thermal',
+        'sonic_sensor'
     ],
     classifiers=[
         'Development Status :: 3 - Alpha',

sonic_sensor/sensor_base.py

@@ -0,0 +1,41 @@
+#!/usr/bin/python
+
+#########################################################################
+#									#
+# sensor_base.py							#
+#									#
+# Abstract base class for implementing a platform-specific class	#
+# to interact with sensors available from different sources in SONiC	#
+#########################################################################
+
+import subprocess
+import sys
+
+class SensorBase(object):
+        """
+        Abstract base class for interfacing with a sensor
+        """
+        def __init__(self):
+                self.ssh_connection = None
+
+        def get_local_data(self):
+                """
+                Retrieves output derived from inbuilt sensors detected in SONiC CPU
+                Returns:
+                        string: voltages, fans and  temps output derived from inbuilt sensors detected in SONiC CPU
+                """
+                sensor_cmd = "sensors"
+                p = subprocess.Popen(sensor_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+                stdout, stderr = p.communicate()
+                ## Wait for end of command. Get return returncode ##
+                returncode = p.returncode
+                ## if no error, get the sensor result ##
+                if returncode == 0:
+                        print("*************** SONiC CPU OUTPUT ***********")
+                        print(stdout.rstrip("\n"))
+                else:
+			print('exit code: {}. Error -> {}'.format(returncode, stderr))
+                        sys.stderr.write(stderr)
+
+        def get_data_api(self):
+                self.get_local_data()