Add OVSDB manager protocol application

Allows listening on a socket for OVSDB clients, reacting to their events
and modifying their database.

Co-Authored-By: Chris Hansen <chris.hansen.career@gmail.com>
Co-Authored-By: Ravi Kamachi <ravi.kamachi@rackspace.com>

Signed-off-by: Jason Kölker <jason@koelker.net>
Signed-off-by: Chris Hansen <chris.hansen.career@gmail.com>
Signed-off-by: Ravi Kamachi <ravi.kamachi@rackspace.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 44 insertions, 0 deletions

diff --git a/ryu/services/protocols/ovsdb/model.py b/ryu/services/protocols/ovsdb/model.py
new file mode 100644
index 00000000..992c785f
--- /dev/null
+++ b/ryu/services/protocols/ovsdb/model.py
@@ -0,0 +1,44 @@
+# Copyright (c) 2014 Rackspace Hosting
+#
+# 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 uuid
+
+
+class _UUIDDict(dict):
+    def _uuidize(self):
+        if '_uuid' not in self or self['_uuid'] is None:
+            self['_uuid'] = uuid.uuid4()
+
+    @property
+    def uuid(self):
+        self._uuidize()
+        return self['_uuid']
+
+    @uuid.setter
+    def uuid(self, value):
+        self['_uuid'] = value
+
+
+class Row(_UUIDDict):
+    @property
+    def delete(self):
+        if '_delete' in self and self['_delete']:
+            return True
+
+        return False
+
+    @delete.setter
+    def delete(self, value):
+        self['_delete'] = value