1 files changed, 43 insertions, 0 deletions
diff --git a/openstackclient/network/common.py b/openstackclient/network/common.py
new file mode 100644
index 00000000..5ba44f7b
--- /dev/null
+++ b/openstackclient/network/common.py
@@ -0,0 +1,43 @@
+#   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.
+#
+
+from openstackclient.common import exceptions
+
+
+def find(client, resource, resources, name_or_id):
+    """Find a network resource
+
+    :param client: network client
+    :param resource: name of the resource
+    :param resources: plural name of resource
+    :param name_or_id: name or id of resource user is looking for
+
+    For example:
+        n = find(netclient, 'network', 'networks', 'matrix')
+    """
+    list_method = getattr(client, "list_%s" % resources)
+    # Search for by name
+    data = list_method(name=name_or_id, fields='id')
+    info = data[resources]
+    if len(info) == 1:
+        return info[0]['id']
+    if len(info) > 1:
+        msg = "More than one %s exists with the name '%s'."
+        raise exceptions.CommandError(msg % (resource, name_or_id))
+    # Search for by id
+    data = list_method(id=name_or_id, fields='id')
+    info = data[resources]
+    if len(info) == 1:
+        return info[0]['id']
+    msg = "No %s with a name or ID of '%s' exists." % (resource, name_or_id)
+    raise exceptions.CommandError(msg)