From 6cdc2720f144ccc34b37548d1b38fa63b9c5a59b Mon Sep 17 00:00:00 2001
From: Takeshi <a86487817@gmail.com>
Date: Tue, 18 Aug 2015 17:00:45 +0800
Subject: [PATCH] Add register_service to topology events

If an application consumes topology event,  Switches application should
start automatically.

Signed-off-by: Takeshi <a86487817@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/topology/event.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ryu/topology/event.py b/ryu/topology/event.py
index 6afbe78f..c54152bf 100644
--- a/ryu/topology/event.py
+++ b/ryu/topology/event.py
@@ -14,6 +14,7 @@
 # limitations under the License.
 
 import logging
+from ryu.controller import handler
 from ryu.controller import event
 
 LOG = logging.getLogger(__name__)
@@ -163,3 +164,5 @@ class EventHostBase(event.EventBase):
 class EventHostAdd(EventHostBase):
     def __init__(self, host):
         super(EventHostAdd, self).__init__(host)
+
+handler.register_service('ryu.topology.switches')