Hi Bill,

Care to try out a patch for me?

https://issues.apache.org/jira/browse/QPID-5019

If this works, I'll try to get Justin to approve it for 0.24, that way it will 
be in the next release (as well as trunk).

----- Original Message -----
> From: "Bill Freeman" <ke1g...@gmail.com>
> To: "users" <users@qpid.apache.org>
> Sent: Thursday, July 25, 2013 4:28:50 PM
> Subject: Re: Telling v1 events from v2 events using qmf.console python QMF 
> library
> 
> Ken,
> 
> Thanks.
> 
> That works for me.  Probably naming it "isV2" to match the one in ObjectId
> instances would be wise.
> 
> If I know that it's coming I can make my patch the same way, knowing that
> when I get around to accepting a new enough released version to obviate the
> need for my patched one, my code won't have to change in this area.
> 
> Bill
> 
> 
> On Thu, Jul 25, 2013 at 3:58 PM, Ken Giusti <kgiu...@redhat.com> wrote:
> 
> > Hi Bill,
> >
> > I don't think there is a way to distinguish the two - when they're passed
> > to the console callback, they'll be identical.  We need to fix that.
> >
> > Adding a isV2 attribute to the event sounds like a good approach.  Let me
> > know, I'd like to patch that into 0.24 and trunk so it will be available in
> > future releases.
> >
> > -K
> >
> >
> > ----- Original Message -----
> > > From: "Bill Freeman" <ke1g...@gmail.com>
> > > To: "users" <users@qpid.apache.org>
> > > Sent: Thursday, July 25, 2013 12:24:34 PM
> > > Subject: Telling v1 events from v2 events using qmf.console python QMF
> > library
> > >
> > > I've started working on detecting when a queue has been deleted.  One
> > > possibility is to track the queueDelete QMF events.
> > >
> > > I noticed that I get 2 of each event (using an older qmf.console that has
> > > been patched as recently discussed to allow v2 to happen at all).  Using
> > > pdb to crawl up the stack, I confirmed that one is a v1 event, and the
> > > other is a v2 event.
> > >
> > > I'd like to discard one, preferably the v1, so that I know my code will
> > > still work in a future when the brokers aren't sending v1 events anymore.
> > > But at the point that the Console.event callback is called, I don't see
> > how
> > > to distinguish the two.  For objectProps and objectStatis I can get an
> > > ObjectID instance and use its isV2 attribute, but I don't believe that's
> > > available for Event instances.
> > >
> > > It would be easy enough for me to also patch the Event constructor (it
> > > knows because of the presence or absence of a dict as the v2Map
> > constructor
> > > argument) to mark the Event object suitably.  (I'm thinking of adding an
> > > isV1 boolean that I'll check with getattr(event, 'isV1', False) so that
> > the
> > > code will do the right thing with a future where only v2 events are
> > > delivered by code that knows nothing about the flag.)
> > >
> > > But am I missing an existing easier solution?
> > >
> > > Bill
> > >
> >
> > --
> > -K
> >
> > ---------------------------------------------------------------------
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> >
> >
> 

-- 
-K

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