New function get_power() and generic function get_parameter(parameter_name) for class Systems

get_power(): return power state of the system
get_parameter(parameter_name): return parameter value based on the parameter_name

examples/simple-proliant.py

@@ -41,7 +41,9 @@ print ("Redfish API version : %s \n" % remote_mgmt.get_api_version())
 #        remote_mgmt.Systems.systems_list[0] = remote_mgmt.Systems.managed_system
 
 print("Bios version : {}\n".format(remote_mgmt.Systems.systems_list[0].get_bios_version()))
+print("Serial Number : {}\n".format(remote_mgmt.Systems.systems_list[0].get_serial_number()))
+print("Power State : {}\n".format(remote_mgmt.Systems.systems_list[0].get_power()))
+print("Parameter 'Model' : {}\n".format(remote_mgmt.Systems.systems_list[0].get_parameter("Model")))
 
-print("Serial Number : {}\n".format(remote_mgmt.Systems.systems_list[0].get_serialnumber()))
 
 remote_mgmt.logout()

redfish/types.py

@@ -186,7 +186,7 @@ class Systems(Base):
             # Hopefully this kind of discrepencies will be fixed with Redfish 1.0 (August)
             return self.data.BiosVersion
 
-    def get_serialnumber(self):
+    def get_serial_number(self):
         try:
             # Returned by proliant
             return self.data.SerialNumber
@@ -194,6 +194,18 @@ class Systems(Base):
             # Returned by mockup.
             # Hopefully this kind of discrepencies will be fixed with Redfish 1.0 (August)
             return ""
+        
+    def get_power(self):
+        try:
+            return self.data.Power
+        except:
+            return ""
+        
+    def get_parameter(self, parameter_name):
+        try:
+            return self.data[parameter_name]
+        except:
+            return "Parameter does not exist"
 
 
 class SystemsCollection(BaseCollection):