Re: [Ryu-devel] get the datapath object form the dpid

[Yusuke I. <iwa...@gm...>]

Hi,

On 2015年06月24日 04:46, Juan Pedro Muñoz Gea wrote:
> Hi all,
> 
> I have tried to get the datapath object from the dpid (integer) using
> the following code:
> 
> import ryu.app.ofctl.api as api
> datapath = api.get_datapath(self, dpid)
> 
> However, the following error appears:
> AttributeError: 'Monitoring' object has no attribute 'name'
> 
> How can I fix this point?


On my environment, api.get_datapath() works fine.
Please see the following snippet.

$ git diff
diff --git a/ryu/app/simple_switch_13.py b/ryu/app/simple_switch_13.py
index b9cbad0..2480dc3 100644
--- a/ryu/app/simple_switch_13.py
+++ b/ryu/app/simple_switch_13.py
@@ -21,6 +21,8 @@ from ryu.ofproto import ofproto_v1_3
 from ryu.lib.packet import packet
 from ryu.lib.packet import ethernet
 
+from ryu.app.ofctl import api
+
 
 class SimpleSwitch13(app_manager.RyuApp):
     OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
@@ -62,6 +64,10 @@ class SimpleSwitch13(app_manager.RyuApp):
                                     match=match, instructions=inst)
         datapath.send_msg(mod)
 
+        # Send event to get datapath
+        dp = api.get_datapath(self, datapath.id)
+        self.logger.info('datapath=%s', dp)
+
     @set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
     def _packet_in_handler(self, ev):
         # If you hit this you might want to increase

Thanks,
Iwase

> 
> Thanks,
> - Juan Pedro
> 
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