Fix to enable meter-links on resource-list CLI

This adds an optional param to resource-list
CLI to enable meter-links. By default, meter
links are not generated, this patch adds an
optional param to generate links.

Change-Id: I308b94c8a57833cf30b4815ecec2ff9a50e91af6
Closes-Bug: #1508709

ceilometerclient/tests/unit/v2/test_resources.py

@@ -52,6 +52,25 @@ fixtures = {
             ]
         ),
     },
+    '/v2/resources?meter_links=1': {
+        'GET': (
+            {},
+            [
+                {
+                    'resource_id': 'c',
+                    'project_id': 'project_blah',
+                    'user_id': 'fred',
+                    'metadata': {'zxc_id': 'blah'},
+                },
+                {
+                    'resource_id': 'd',
+                    'project_id': 'bury_the_ditch',
+                    'user_id': 'jack',
+                    'metadata': {'zxc_id': 'foobar'},
+                },
+            ]
+        ),
+    },
     '/v2/resources/a':
     {
         'GET': (
@@ -85,6 +104,16 @@ class ResourceManagerTest(utils.BaseTestCase):
         self.assertEqual(resources[0].resource_id, 'a')
         self.assertEqual(resources[1].resource_id, 'b')
 
+    def test_list_all_with_links_enabled(self):
+        resources = list(self.mgr.list(links=True))
+        expect = [
+            'GET', '/v2/resources?meter_links=1'
+        ]
+        self.http_client.assert_called(*expect)
+        self.assertEqual(2, len(resources))
+        self.assertEqual('c', resources[0].resource_id)
+        self.assertEqual('d', resources[1].resource_id)
+
     def test_list_one(self):
         resource = self.mgr.get(resource_id='a')
         expect = [

ceilometerclient/tests/unit/v2/test_shell.py

@@ -1382,6 +1382,7 @@ class ShellResourceListCommandTest(utils.BaseTestCase):
         self.cc.resources.list = mock.Mock()
         self.args = mock.MagicMock()
         self.args.limit = None
+        self.args.meter_links = None
 
     @mock.patch('sys.stdout', new=six.StringIO())
     def test_resource_list(self):
@@ -1389,7 +1390,9 @@ class ShellResourceListCommandTest(utils.BaseTestCase):
         self.cc.resources.list.return_value = [resource]
 
         ceilometer_shell.do_resource_list(self.cc, self.args)
-        self.cc.resources.list.assert_called_once_with(q=[], limit=None)
+        self.cc.resources.list.assert_called_once_with(q=[],
+                                                       links=None,
+                                                       limit=None)
 
         self.assertEqual('''\
 +-------------+-----------+---------+------------+
@@ -1399,6 +1402,23 @@ class ShellResourceListCommandTest(utils.BaseTestCase):
 +-------------+-----------+---------+------------+
 ''', sys.stdout.getvalue())
 
+    @mock.patch('sys.stdout', new=six.StringIO())
+    def test_resource_list_with_links(self):
+        self.args.meter_links = True
+        resource = resources.Resource(mock.Mock(), self.RESOURCE)
+        self.cc.resources.list.return_value = [resource]
+        ceilometer_shell.do_resource_list(self.cc, self.args)
+        self.cc.resources.list.assert_called_once_with(q=[],
+                                                       links=True,
+                                                       limit=None)
+        self.assertEqual('''\
++-------------+-----------+---------+------------+
+| Resource ID | Source    | User ID | Project ID |
++-------------+-----------+---------+------------+
+| resource-id | openstack | user    | project    |
++-------------+-----------+---------+------------+
+''', sys.stdout.getvalue())
+
 
 class ShellEventTypeListCommandTest(utils.BaseTestCase):
 

ceilometerclient/v2/shell.py

@@ -1054,11 +1054,14 @@ def do_alarm_history(cc, args={}):
 @utils.arg('-q', '--query', metavar='<QUERY>',
            help='key[op]data_type::value; list. data_type is optional, '
                 'but if supplied must be string, integer, float, or boolean.')
+@utils.arg('--meter-links', dest='meter_links', action='store_true',
+           help='If specified, meter links will be generated.')
 @utils.arg('-l', '--limit', metavar='<NUMBER>',
            help='Maximum number of resources to return.')
 def do_resource_list(cc, args={}):
     """List the resources."""
     resources = cc.resources.list(q=options.cli_to_array(args.query),
+                                  links=args.meter_links,
                                   limit=args.limit)
 
     field_labels = ['Resource ID', 'Source', 'User ID', 'Project ID']