Admin util: add support to get network morefs

Add a command that will make getting the network moref a lot
simpler.

nsxadmin -r networks -o list

Output:-

NSX Plugin in use: nsxv
==== [NEUTRON] List Networks ====
networks
+-----------------------------+----------------+--------------------------------------+
| type                        | moref          | name                                 |
+-----------------------------+----------------+--------------------------------------+
| DistributedVirtualPortgroup | dvportgroup-61 | edge-8-1-18d92ccd5-9f9f-4abf-9c5e-0e |
| DistributedVirtualPortgroup | dvportgroup-44 | edge-6-1-1d99f80d0-58af-436e-9f02-8b |
| Network                     | network-85     | none                                 |
| DistributedVirtualPortgroup | dvportgroup-71 | edge-9-1-113708c82-3a38-458c-80ce-8c |
| DistributedVirtualPortgroup | dvportgroup-65 | edge-7-1-17c1cc8da-0642-4014-abce-ba |
| Network                     | network-17     | VM Network                           |
| DistributedVirtualPortgroup | dvportgroup-81 | edge-14-1-1490d7f36-7558-4519-a602-3 |
| DistributedVirtualPortgroup | dvportgroup-39 | edge-4-1-13fdc6af0-f2f5-4335-9a2d-af |
| DistributedVirtualPortgroup | dvportgroup-32 | edge-2-1-1ba392d5a-66cc-4c6d-8a45-f4 |
| VirtualWire                 | virtualwire-3  | 9d0d1049-e1bf-473d-8489-5fe3d7679753 |
| DistributedVirtualPortgroup | dvportgroup-86 | edge-16-1-1ffc203ca-717d-4bb2-b7f9-e |
| VirtualWire                 | virtualwire-13 | 90a21c2d-2167-470e-b44f-34a3deb428f2 |
+-----------------------------+----------------+--------------------------------------+

Change-Id: I809a7b12c883fea22b8bacc77df924dad1a394e6

vmware_nsx/plugins/nsx_v/vshield/vcns.py

@@ -725,6 +725,12 @@ class Vcns(object):
         else:
             return uri_path
 
+    def get_scoping_objects(self):
+        uri = '%s/usermgmt/scopingobjects' % SERVICES_PREFIX
+        h, scoping_objects = self.do_request(HTTP_GET, uri, decode=False,
+                                             format='xml')
+        return scoping_objects
+
     def _scopingobjects_lookup(self, type_name, object_id, name=None):
         uri = '%s/usermgmt/scopingobjects' % SERVICES_PREFIX
         h, so_list = self.do_request(HTTP_GET, uri, decode=False,

vmware_nsx/shell/admin/plugins/common/constants.py

@@ -31,3 +31,4 @@ SPOOFGUARD_POLICY = 'spoofguard-policy'
 DHCP_BINDING = 'dhcp-binding'
 BACKUP_EDGES = 'backup-edges'
 ORPHANED_EDGES = 'orphaned-edges'
+NETWORKS = 'networks'

vmware_nsx/shell/admin/plugins/nsxv/resources/networks.py

@@ -0,0 +1,56 @@
+# Copyright 2016 VMware, Inc.  All rights reserved.
+#
+#    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.
+
+
+import logging
+import xml.etree.ElementTree as et
+
+from vmware_nsx.shell.admin.plugins.common import constants
+from vmware_nsx.shell.admin.plugins.common import formatters
+
+from vmware_nsx.shell.admin.plugins.common import utils as admin_utils
+from vmware_nsx.shell.admin.plugins.nsxv.resources import utils as utils
+from vmware_nsx.shell import nsxadmin as shell
+
+from neutron.callbacks import registry
+
+LOG = logging.getLogger(__name__)
+nsxv = utils.get_nsxv_client()
+
+
+def get_networks():
+    nsxv = utils.get_nsxv_client()
+    so_list = nsxv.get_scoping_objects()
+    networks = []
+    root = et.fromstring(so_list)
+    for obj in root.iter('object'):
+        if (obj.find('objectTypeName').text == 'Network' or
+            obj.find('objectTypeName').text == 'VirtualWire' or
+            obj.find('objectTypeName').text == 'DistributedVirtualPortgroup'):
+            networks.append({'type': obj.find('objectTypeName').text,
+                             'moref': obj.find('objectId').text,
+                             'name': obj.find('name').text})
+    return networks
+
+
+@admin_utils.output_header
+def neutron_list_networks(resource, event, trigger,
+                          **kwargs):
+    LOG.info(formatters.output_formatter(constants.NETWORKS, get_networks(),
+                                         ['type', 'moref', 'name']))
+
+
+registry.subscribe(neutron_list_networks,
+                   constants.NETWORKS,
+                   shell.Operations.LIST.value)

vmware_nsx/shell/nsxadmin.py

@@ -98,6 +98,8 @@ nsxv_resources = {
     constants.DHCP_BINDING: Resource(constants.DHCP_BINDING,
                                      [Operations.LIST.value,
                                       Operations.NSX_UPDATE.value]),
+    constants.NETWORKS: Resource(constants.NETWORKS,
+                                 [Operations.LIST.value]),
 }
 
 nsxv3_resources_names = map(lambda res: res.name, nsxv3_resources.itervalues())