Add support for volume transfer request list

OSC does not support to list volume transfer from one user
to other user.
This patch will provide support for listning volume transfer
requests.

Closes-Bug:#1554886

Implements: bp cinder-command-support

Change-Id: Ie659bc39cb1d1e931cca7a40b2f126a067ee484c

1 files changed, 51 insertions, 0 deletions

diff --git a/openstackclient/volume/v1/volume_transfer_request.py b/openstackclient/volume/v1/volume_transfer_request.py
new file mode 100644
index 00000000..98689e7b
--- /dev/null
+++ b/openstackclient/volume/v1/volume_transfer_request.py
@@ -0,0 +1,51 @@
+#
+#   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.
+#
+
+"""Volume v2 transfer action implementations"""
+
+
+from openstackclient.common import command
+from openstackclient.common import utils
+from openstackclient.i18n import _
+
+
+class ListTransferRequests(command.Lister):
+    """Lists all volume transfer requests."""
+
+    def get_parser(self, prog_name):
+        parser = super(ListTransferRequests, self).get_parser(prog_name)
+        parser.add_argument(
+            '--all-projects',
+            dest='all_projects',
+            action="store_true",
+            default=False,
+            help=_('Shows detail for all projects. Admin only. '
+                   '(defaults to False)')
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        columns = ['ID', 'Volume ID', 'Name']
+        column_headers = ['ID', 'Volume', 'Name']
+
+        volume_client = self.app.client_manager.volume
+
+        volume_transfer_result = volume_client.transfers.list(
+            detailed=True,
+            search_opts={'all_tenants': parsed_args.all_projects}
+        )
+
+        return (column_headers, (
+            utils.get_item_properties(s, columns)
+            for s in volume_transfer_result))