Add dns-domain support to Network object

Add "dns-domain" parameter to Network class. Also check
backend extensions and send an error message in case of
an argument (like dns-domain) is sent and the extension is
missing (dns-integration in this case).

Change-Id: I7303658c27d9b9f2d8381ccea0b29e96909cab54
Closes-Bug: 1633214
Partial-Bug: 1547736

1 files changed, 25 insertions, 0 deletions

diff --git a/openstackclient/network/common.py b/openstackclient/network/common.py
index 37bf1406..d22b2caa 100644
--- a/openstackclient/network/common.py
+++ b/openstackclient/network/common.py
@@ -12,6 +12,7 @@
 #
 
 import abc
+import contextlib
 import logging
 
 import openstack.exceptions
@@ -24,6 +25,30 @@ from openstackclient.i18n import _
 
 LOG = logging.getLogger(__name__)
 
+_required_opt_extensions_map = {
+    'allowed_address_pairs': 'allowed-address-pairs',
+    'dns_domain': 'dns-integration',
+    'dns_name': 'dns-integration',
+    'extra_dhcp_opts': 'extra_dhcp_opt',
+    'qos_policy_id': 'qos',
+    'security_groups': 'security-groups',
+}
+
+
+@contextlib.contextmanager
+def check_missing_extension_if_error(client_manager, attrs):
+    # If specified option requires extension, then try to
+    # find out if it exists. If it does not exist,
+    # then an exception with the appropriate message
+    # will be thrown from within client.find_extension
+    try:
+        yield
+    except openstack.exceptions.HttpException:
+        for opt, ext in _required_opt_extensions_map.items():
+            if opt in attrs:
+                client_manager.find_extension(ext, ignore_missing=False)
+        raise
+
 
 @six.add_metaclass(abc.ABCMeta)
 class NetworkAndComputeCommand(command.Command):