Use Jinja2 template system to display manager info

- Use templating system, so user will be able to customize output.
- This could be use later to propose output in various format (html,
  xml, json).
- Undefined EthernetInterfacesCollection in case of failure. So it
  allows to test definition in the template or elsewhere.

redfish-client/redfish-client.py

@@ -39,6 +39,7 @@ import docopt
 import logging
 import redfish
 import requests.packages.urllib3
+import jinja2
 
 
 class ConfigFile(object):
@@ -249,35 +250,9 @@ if __name__ == '__main__':
             sys.stderr.write(str(e.advices))
             sys.exit(1)
 
-        # Display manager information
+        # Display manager information using jinja2 template      
-        # TODO : Use a templating system
+        template = jinja2_env.get_template("manager_info.template")
-        print('Redfish API version : %s' % remote_mgmt.get_api_version())
+        print template.render(r=remote_mgmt)
-        print(remote_mgmt.Root.get_name())
-        print('\n')
-        print('Managers information :')
-        print('----------------------')
-        for manager_index in sorted(remote_mgmt.Managers.managers_dict):
-            manager = remote_mgmt.Managers.managers_dict[manager_index]
-            print('\nManager id {} :').format(manager_index)
-            print('UUID : {}').format(manager.get_uuid())
-            print('Type : {}').format(manager.get_type())
-            print('Firmware version : {}').format(manager.get_firmware_version())
-            print('State : {}').format(manager.get_status())
-            print manager.get_managed_chassis()
-            print manager.get_managed_systems()
-            print('Ethernet interfaces :')
-            try :
-                for ethernetinterface_index in sorted(manager.ethernet_interfaces_collection.ethernet_interfaces_dict):
-                    ei = manager.ethernet_interfaces_collection.ethernet_interfaces_dict[ethernetinterface_index]
-                    print('\nEthernet Interface id {} :').format(ethernetinterface_index)
-                    print(ei.get_name())
-                    print(ei.get_parameter('FQDN'))
-                    print ei.get_ipv4()
-                    print ei.get_ipv6()
-            except AttributeError:
-                # We don't have ethernet interfaces
-                pass
-        
 
 
     # Main program
@@ -349,6 +324,11 @@ if __name__ == '__main__':
     arguments['--conf_file'] = arguments['--conf_file'].replace('~', HOME)
     conf_file = ConfigFile(arguments['--conf_file'])
     
+    # Initialize Template system (jinja2)
+    # TODO : set the template file location into cmd line default to /usr/share/python-redfish/templates ?
+    logger.debug("Initialize template system")
+    jinja2_env = jinja2.Environment(loader=jinja2.FileSystemLoader("templates"))
+
     if arguments['config'] is True:
         logger.debug("Config commands")
         if arguments['show'] is True:

redfish-client/templates/bla.templates

@@ -0,0 +1,32 @@
+        #=======================================================================
+        # print('Redfish API version : %s' % remote_mgmt.get_api_version())
+        # print(remote_mgmt.Root.get_name())
+        # print('\n')
+        # print('Managers information :')
+        # print('----------------------')
+        # for manager_index in sorted(remote_mgmt.Managers.managers_dict):
+        #     manager = remote_mgmt.Managers.managers_dict[manager_index]
+        #     print('\nManager id {} :').format(manager_index)
+        #     print('UUID : {}').format(manager.get_uuid())
+        #     print('Type : {}').format(manager.get_type())
+        #     print('Firmware version : {}').format(manager.get_firmware_version())
+        #     print('State : {}').format(manager.get_status())
+        #     print manager.get_managed_chassis()
+        #     print manager.get_managed_systems()
+        #     print('Ethernet interfaces :')
+        #     try :
+        #         for ethernetinterface_index in sorted(manager.ethernet_interfaces_collection.ethernet_interfaces_dict):
+        #             ei = manager.ethernet_interfaces_collection.ethernet_interfaces_dict[ethernetinterface_index]
+        #             print('\nEthernet Interface id {} :').format(ethernetinterface_index)
+        #             print(ei.get_name())
+        #             print(ei.get_parameter('FQDN'))
+        #             print ei.get_ipv4()
+        #             print ei.get_ipv6()
+        #     except AttributeError:
+        #         # We don't have ethernet interfaces
+        #         pass
+        #=======================================================================
+        
+        
+Redfish API version :  remote_mgmt.get_api_version() 
+remote_mgmt.Root.get_name() 

redfish-client/templates/manager_info.template

@@ -0,0 +1,31 @@
+Redfish API version :  {{ r.get_api_version() }} 
+{{ r.Root.get_name() }}
+
+Managers information :
+======================
+{% for manager_index in r.Managers.managers_dict | sort %}
+{%- set manager = r.Managers.managers_dict[manager_index] %}
+Manager id {{ manager_index }}:
+UUID : {{ manager.get_uuid() }}
+Type : {{ manager.get_type() }}
+Firmware version : {{ manager.get_firmware_version() }}
+State : {{ manager.get_status() }}
+Ethernet Interface :
+{%- if manager.ethernet_interfaces_collection %}
+{%- for ethernetinterface_index in manager.ethernet_interfaces_collection.ethernet_interfaces_dict | sort %}
+{%- set ei = manager.ethernet_interfaces_collection.ethernet_interfaces_dict[ethernetinterface_index] %}
+    Ethernet Interface id {{ ethernetinterface_index }} :
+    {{ ei.get_name() }}
+    FQDN : {{ ei.get_fqdn() }}
+    Address ipv4 : {{ ei.get_ipv4() | join(', ') }}
+    Address ipv6 : {{ ei.get_ipv6() | join(', ') }}
+{%- endfor %}
+{%- else %}
+    This manager has no ethernet interface 
+{%- endif %}
+Managed Chassis :
+	{{ manager.get_managed_chassis() | join(', ') }}
+Managed System :
+	{{ manager.get_managed_systems() | join(', ') }}
+----------------------------
+{% endfor %}

redfish/types.py

@@ -218,11 +218,12 @@ class Managers(Base):
             #                                            )
         except exception.InvalidRedfishContentException:
             # This is to avoid invalid content from the mockup
-            pass
+            self.ethernet_interfaces_collection = None
         
         except AttributeError:
             # This means we don't have EthernetInterfaces
-            pass
+            self.ethernet_interfaces_collection = None
+            
 
     def get_firmware_version(self):
         '''Get firmware version of the manager

requirements.txt

@@ -6,3 +6,4 @@ pbr>=0.6,!=0.7,<1.0
 #oslo.log>=1.0,<2.0
 Babel>=1.3
 tortilla>=0.4.1
+Jinja2>=2.7.3