New ML2/L3 plugin to support SFC

Change-Id: Ie778a2b2e09a29972e28d70c8eedee407b1d8eb6
Signed-off-by: Ashlee Young <ashlee@onosfw.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/framework/src/openstack/neutron/plugin/networking-onos/networking-onos/networking_onos/common/utils.py b/framework/src/openstack/neutron/plugin/networking-onos/networking-onos/networking_onos/common/utils.py
new file mode 100644
index 00000000..49477149
--- /dev/null
+++ b/framework/src/openstack/neutron/plugin/networking-onos/networking-onos/networking_onos/common/utils.py
@@ -0,0 +1,44 @@
+# Copyright (c) 2015 Huawei Technologies India Pvt Ltd
+# 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.
+
+from oslo_log import log as logging
+from oslo_serialization import jsonutils
+import requests
+
+
+LOG = logging.getLogger(__name__)
+
+
+def send_msg(onos_path, onos_auth, msg_type, entity_path, entity=None):
+    """Send message to the ONOS controller."""
+
+    path = '/'.join([onos_path, entity_path])
+    hdr = {'Content-Type': 'application/json'}
+    body = jsonutils.dumps(entity, indent=2) if entity else None
+    LOG.debug("Sending MSG_TYPE (%(msg)s) URL (%(path)s) "
+              "OBJECT (%(entity)s) BODY (%(body)s)",
+              {'msg': msg_type, 'path': path,
+               'entity': entity, 'body': body})
+    req = requests.request(method=msg_type, url=path,
+                           headers=hdr, data=body,
+                           auth=onos_auth)
+    # Let's raise voice for an error
+    req.raise_for_status()
+
+
+def safe_delete_from_dict(dict, keys):
+    """Ignore key errors when deleting from a dictionary."""
+    for key in keys:
+        dict.pop(key, None)