Implement rbac list and show command

1. implement "openstack network rbac list"
2. implement "openstack network rbac show"
3. also add FakeRBACPolicy to test "network rbac xxx" command
The unit test class similar to FakeRouter, which is able to
fake one or more rbac policies. It will be used by the rbac
CRUD patches.

Change-Id: I6c97bc8819698546895fd530464a2cbb347bf77d
Co-Authored-By: Huanxuan Ao <huanxuan.ao@easystack.cn>
Partially-Implements: blueprint neutron-client-rbac
Depends-On: I88f409a24947b67146c0f93ec8480834cef56d2f

1 files changed, 75 insertions, 0 deletions

diff --git a/openstackclient/network/v2/network_rbac.py b/openstackclient/network/v2/network_rbac.py
new file mode 100644
index 00000000..7a759449
--- /dev/null
+++ b/openstackclient/network/v2/network_rbac.py
@@ -0,0 +1,75 @@
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+#
+
+"""RBAC action implementations"""
+
+from osc_lib.command import command
+from osc_lib import utils
+
+from openstackclient.i18n import _
+
+
+def _get_columns(item):
+    columns = list(item.keys())
+    if 'tenant_id' in columns:
+        columns.remove('tenant_id')
+        columns.append('project_id')
+    if 'target_tenant' in columns:
+        columns.remove('target_tenant')
+        columns.append('target_project')
+    return tuple(sorted(columns))
+
+
+class ListNetworkRBAC(command.Lister):
+    """List network RBAC policies"""
+
+    def take_action(self, parsed_args):
+        client = self.app.client_manager.network
+
+        columns = (
+            'id',
+            'object_type',
+            'object_id',
+        )
+        column_headers = (
+            'ID',
+            'Object Type',
+            'Object ID',
+        )
+
+        data = client.rbac_policies()
+        return (column_headers,
+                (utils.get_item_properties(
+                    s, columns,
+                ) for s in data))
+
+
+class ShowNetworkRBAC(command.ShowOne):
+    """Display network RBAC policy details"""
+
+    def get_parser(self, prog_name):
+        parser = super(ShowNetworkRBAC, self).get_parser(prog_name)
+        parser.add_argument(
+            'rbac_policy',
+            metavar="<rbac-policy>",
+            help=_("RBAC policy (ID only)")
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        client = self.app.client_manager.network
+        obj = client.find_rbac_policy(parsed_args.rbac_policy,
+                                      ignore_missing=False)
+        columns = _get_columns(obj)
+        data = utils.get_item_properties(obj, columns)
+        return columns, data