Add "event trait list" command

This command allow users to list the trait values of an specified event
type and trait name.

Change-Id: Ia8b27af7ee6c8533855fbd4937511e64e38b6494

pankoclient/osc/v2/events.py

@@ -19,6 +19,7 @@ import copy
 import json
 
 from osc_lib.command import command
+from osc_lib import utils
 
 
 class EventList(command.Lister):
@@ -104,3 +105,29 @@ class EventTypeList(command.Lister):
         ac = self.app.client_manager.event
         event_types = ac.event_type.list()
         return ('Event Type',), ((t,)for t in event_types)
+
+
+class EventTraitList(command.Lister):
+    """List event traits of a specified event type and trait name"""
+
+    def get_parser(self, prog_name):
+        parser = super(EventTraitList, self).get_parser(prog_name)
+        parser.add_argument(
+            'type_name',
+            metavar='<EVENT_TYPE>',
+            help='Type of the event for which traits will listed.'
+        )
+        parser.add_argument(
+            'trait_name',
+            metavar='<TRAIT_NAME>',
+            help='The name of the trait to list.'
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        ac = self.app.client_manager.event
+        event_traits = ac.event_trait.list(
+            parsed_args.type_name, parsed_args.trait_name)
+        columns = ('name', 'value', 'type')
+        return (columns,
+                (utils.get_item_properties(t, columns) for t in event_traits))

pankoclient/tests/unit/fakes.py

@@ -58,6 +58,7 @@ class FakeTestEventV2Client(object):
         self.capabilities = capabilities.CapabilitiesManager(
             self.fake_http_client)
         self.event_type = events.EventTypeManager(self.fake_http_client)
+        self.event_trait = events.EventTraitsManager(self.fake_http_client)
 
 
 class FakeHTTPClient(object):

pankoclient/tests/unit/osc/v2/test_events.py

@@ -32,3 +32,25 @@ class TestEventTypeList(test_base.TestEventV2):
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
         self.cmd.take_action(parsed_args)
         mock_list.assert_called_once_with('/v2/event_types/')
+
+
+@mock.patch.object(events_mgr.EventTraitsManager, '_list')
+class TestEventTraitsList(test_base.TestEventV2):
+    def setUp(self):
+        super(TestEventTraitsList, self).setUp()
+        self.cmd = events.EventTraitList(self.app, None)
+
+    def test_event_traits_list(self, mock_list):
+        arglist = [
+            'event_type1',
+            'trait_name1'
+        ]
+        verifylist = [
+            ('type_name', 'event_type1'),
+            ('trait_name', 'trait_name1'),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+        self.cmd.take_action(parsed_args)
+        expected_url = '/v2/event_types/%s/traits/%s' % (
+            parsed_args.type_name, parsed_args.trait_name)
+        mock_list.assert_called_once_with(expected_url)

pankoclient/v2/client.py

@@ -27,3 +27,4 @@ class Client(object):
         self.capabilities = capabilities.CapabilitiesManager(self.http_client)
         self.event = events.EventManager(self.http_client)
         self.event_type = events.EventTypeManager(self.http_client)
+        self.event_trait = events.EventTraitsManager(self.http_client)

pankoclient/v2/events.py

@@ -23,6 +23,10 @@ class EventType(base.Resource):
     pass
 
 
+class EventTrait(base.Resource):
+    pass
+
+
 class EventManager(base.ManagerWithFind):
     resource_class = Event
 
@@ -63,3 +67,11 @@ class EventTypeManager(base.ManagerWithFind):
     def list(self):
         url = '/v2/event_types/'
         return self._list(url)
+
+
+class EventTraitsManager(base.ManagerWithFind):
+    resource_class = EventTrait
+
+    def list(self, event_type, trait_name):
+        url = '/v2/event_types/%s/traits/%s' % (event_type, trait_name)
+        return self._list(url)

setup.cfg

@@ -34,6 +34,7 @@ openstack.event.v2 =
     event list = pankoclient.osc.v2.events:EventList
     event show = pankoclient.osc.v2.events:EventShow
     event type list = pankoclient.osc.v2.events:EventTypeList
+    event trait list = pankoclient.osc.v2.events:EventTraitList
 
 [build_sphinx]
 source-dir = doc/source