Add list composed node command

Add new command 'rsd node list' to list all composed node with brief
info, like:

$ openstack rsd node list
+----------+------+--------------------------------------+-------------+
| Identity | Name |                 UUID                 | Description |
+----------+------+--------------------------------------+-------------+
|    2     | Test | fd011520-86a2-11e7-b4d4-5d323196a3e4 |     None    |
+----------+------+--------------------------------------+-------------+

Change-Id: Ie6ef9aebf45c5f2bb1e0d93c86b5f9a70a600b13

rsdclient/common/utils.py

@@ -13,6 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import prettytable
 import six
 
 
@@ -41,3 +42,12 @@ def extract_attr(redfish_obj):
         return None
 
     return result
+
+
+def print_dict(obj_list, field_names):
+    pt = prettytable.PrettyTable(field_names=field_names)
+
+    for element in obj_list:
+        pt.add_row([element.get(i.lower(), None) for i in field_names])
+
+    return pt

rsdclient/osc/v1/node.py

@@ -80,3 +80,13 @@ class ShowNode(command.Command):
         rsd_client = self.app.client_manager.rsd
         node_detail = rsd_client.node.show(parsed_args.node)
         print("{0}".format(json.dumps(node_detail, indent=2)))
+
+
+class ListNode(command.Command):
+    _description = "List all composed nodes"
+
+    def take_action(self, parsed_args):
+        self.log.debug("take_action(%s)", parsed_args)
+        rsd_client = self.app.client_manager.rsd
+        node_list = rsd_client.node.list()
+        print(node_list)

rsdclient/tests/v1/test_node.py

@@ -51,3 +51,25 @@ class NodeTest(testtools.TestCase):
         result = self.mgr.show('1')
         expected = fakes.FAKE_NODE_PYTHON_DICT
         self.assertEqual(result, expected)
+
+    def test_list_node(self):
+        mock_node_collection = mock.Mock()
+        mock_node_collection.members_identities = ('/redfish/v1/Nodes/1',)
+        self.mgr.client.get_node_collection.return_value = mock_node_collection
+        self.mgr.client.get_node.return_value = fakes.FakeNode()
+
+        expected = '+----------+------+--------------------------------------'\
+                   '+------------------+\n'\
+                   '| Identity | Name |                 UUID                 '\
+                   '|   Description    |\n'\
+                   '+----------+------+--------------------------------------'\
+                   '+------------------+\n'\
+                   '|    1     | Test | fd011520-86a2-11e7-b4d4-5d323196a3e4 '\
+                   '| Node for testing |\n'\
+                   '+----------+------+--------------------------------------'\
+                   '+------------------+'
+
+        result = self.mgr.list()
+        self.mgr.client.get_node_collection.assert_called_once()
+        self.mgr.client.get_node.assert_called_once_with('/redfish/v1/Nodes/1')
+        self.assertEqual(str(result), expected)

rsdclient/v1/node.py

@@ -40,3 +40,11 @@ class NodeManager(base.Manager):
     def show(self, node_id):
         node = self.client.get_node(self._get_node_uri(node_id))
         return utils.extract_attr(node)
+
+    def list(self):
+        node_collection = self.client.get_node_collection()
+        nodes = [utils.extract_attr(self.client.get_node(node_uri))
+                 for node_uri in node_collection.members_identities]
+        node_info_table = utils.print_dict(
+            nodes, ["Identity", "Name", "UUID", "Description"])
+        return node_info_table

setup.cfg

@@ -31,6 +31,7 @@ openstack.rsd.v1 =
     rsd_node_compose = rsdclient.osc.v1.node:ComposeNode
     rsd_node_delete = rsdclient.osc.v1.node:DeleteNode
     rsd_node_show = rsdclient.osc.v1.node:ShowNode
+    rsd_node_list = rsdclient.osc.v1.node:ListNode
 
 [build_sphinx]
 all-files = 1