Operating System: Mac OS
Platform: PC

First proposal (without configSubsystem and JMX):

Statistics on way switch -> controller:
= from switch queue stats: by pushing message to queueKeeper (ConnectionConductor)

• after translating in queue:
  = IN+OUT counts for success (done)
  = IN counts for failure
  = before publishing to MD-SAL stats

Statistics in way controller -> switch:
= rpc invoked -> submit task to pool (enqueue): from MD-SAL queue stats

• convert + submit to OFJava (ConnectionAdapter via MesssageDispatchService):
• notification hook..
  = onSuccess stats
  = onFailure stats

There are 7 places to cover by stats (1 of them is already done).

Supported stats:

/** message from switch, enqueued for processing */
FROM_SWITCH_ENQUEUED,
/** message from switch translated successfully - source */
FROM_SWITCH_TRANSLATE_IN_SUCCESS,
/** message from switch translated successfully - target */
FROM_SWITCH_TRANSLATE_OUT_SUCCESS,
/** message from switch where translation failed - source */
FROM_SWITCH_TRANSLATE_SRC_FAILURE,
/** message from switch finally published into MD-SAL */
FROM_SWITCH_PUBLISHED_SUCCESS,
/** message from switch - publishing into MD-SAL failed */
FROM_SWITCH_PUBLISHED_FAILURE,

/** message from MD-SAL to switch via RPC enqueued */
TO_SWITCH_ENQUEUED_SUCCESS,
/** message from MD-SAL to switch via RPC NOT enqueued */
TO_SWITCH_ENQUEUED_FAILED,
/** message from MD-SAL to switch - sent to OFJava successfully */
TO_SWITCH_SUBMITTED_SUCCESS,
/** message from MD-SAL to switch - sent to OFJava but failed*/
TO_SWITCH_SUBMITTED_FAILURE

https://git.opendaylight.org/gerrit/#/c/8666/

merged

please do not forget to solve TODOs (init method in OpenflowPluginProvider + create interface for this provider).