[Freeswitch-dev] BACKGROUND_JOB event

[Juan Jose Comellas]

But shouldn't the content-type reflect the fact that the format of
this event is different from that of other event messages? I've
written a parser for mod_event_socket messages that relies on the
content-type to determine how to interpret the message and here we
seem to have a case where the content-type does not match its content.


On Mon, Apr 28, 2008 at 8:17 PM, Anthony Minessale
<anthony.minessale at gmail.com> wrote:
> it's not a serialized event. it's actually the output of the command in
> question.
>
> The correct way to deal with it is to subscribe to the BACKGROUND_JOB event
> and
> use the Job-UUID header to match the packet to the uuid given as a response
> to the submission of the request.
>  When a match exists the body of that event will be the output generated by
> the API call.
>
>
>
>
> On Mon, Apr 28, 2008 at 5:45 PM, Juan Jose Comellas <juanjo at comellas.org>
> wrote:
>
> >
> >
> >
> > Whenever a call to a command is made using bgapi, a BACKGROUND_JOB
> > event is sent by FreeSWITCH when the command is completed. A
> > BACKGROUND_JOB event looks like this:
> >
> > -------------- cut --------------
> > Content-Length: 614
> > Content-Type: text/event-plain
> >
> > Job-UUID: d19f2410-1548-11dd-9eeb-0d886880e312
> > Job-Command: originate
> > Job-Command-Arg: sofia/default/user2.comellas%40192.168.1.40%3A5061%202001
> > Event-Name: BACKGROUND_JOB
> > Core-UUID: f17f3284-1543-11dd-9eeb-0d886880e312
> > FreeSWITCH-Hostname: comellas
> > FreeSWITCH-IPv4: 192.168.1.38
> > FreeSWITCH-IPv6: 127.0.0.1
> > Event-Date-Local: 2008-04-28%2014%3A30%3A47
> > Event-Date-GMT: Mon,%2028%20Apr%202008%2017%3A30%3A47%20GMT
> > Event-Date-timestamp: 1209403847575107
> > Event-Calling-File: mod_event_socket.c
> > Event-Calling-Function: api_exec
> > Event-Calling-Line-Number: 602
> > Content-Length: 41
> >
> > +OK d19f45e4-1548-11dd-9eeb-0d886880e312
> > -------------- cut --------------
> >
> > >From what MikeJ told me over IRC, the body of a BACKGROUND_JOB message
> > is actually a serialized event containing the response to the original
> > command. The problem is that the content-type of the message is the
> > same as that used by any normal event. This makes it difficult to have
> > a generic parser, because we have to analyze the body of the message
> > to determine whether we are dealing with a normal event or a
> > BACKGROUND_JOB. The other problem I see is that the body containing
> > the serialized event does not have a content-type of its own.
> >
> > An example of a message with the above mentioned problems addressed
> > could look like this:
> >
> > -------------- cut --------------
> > Content-Length: 643
> > Content-Type: text/background-response-wrapper-plain
> >
> > Job-UUID: d19f2410-1548-11dd-9eeb-0d886880e312
> > Job-Command: originate
> > Job-Command-Arg: sofia/default/user2.comellas%40192.168.1.40%3A5061%202001
> > Event-Name: BACKGROUND_JOB
> > Core-UUID: f17f3284-1543-11dd-9eeb-0d886880e312
> > FreeSWITCH-Hostname: comellas
> > FreeSWITCH-IPv4: 192.168.1.38
> > FreeSWITCH-IPv6: 127.0.0.1
> > Event-Date-Local: 2008-04-28%2014%3A30%3A47
> > Event-Date-GMT: Mon,%2028%20Apr%202008%2017%3A30%3A47%20GMT
> > Event-Date-timestamp: 1209403847575107
> > Event-Calling-File: mod_event_socket.c
> > Event-Calling-Function: api_exec
> > Event-Calling-Line-Number: 602
> > Content-Type: api/background-response
> > Content-Length: 41
> >
> > +OK d19f45e4-1548-11dd-9eeb-0d886880e312
> > -------------- cut --------------
> >
> > What do you think? Is a change similar to what I propose feasible?
> >
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>
>
>
> --
> Anthony Minessale II
>
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