[SR-Users] Dispatcher attributes

Joel Serrano joel at textplus.com
Thu Jan 10 04:53:20 CET 2019


Jason,

My answer applies to the XAVP of the xavp_dst modparam, sorry!

If you are accessing the PV of the attrs_pvname modparam, then you don't
need to select the attributes, just directly use the transformation. Also,
not sure if you can use XAVPs there, AFAIR it only accepted AVPs/VARs.
Maybe someone else can confirm that...

Anyway, to make it clear:

Say you have the following modparams:

...
modparam("dispatcher", "xavp_dst", "_dsdst_")
modparam("dispatcher", "attrs_pvname", "$var(attrs)")
...


Depending on what ds_* function you call, one or the other will be set.

For the "attr1" from your example, you would need to use (again, depending
on the dispatcher function called):

$(var(attrs){param.value,attr1})

or

$(xavp(_dsdst_=>attrs){param.value,attr1})



Sorry for the confusion!

Joel.




On Wed, Jan 9, 2019 at 7:45 PM Joel Serrano <joel at textplus.com> wrote:

>
>
> On Wed, Jan 9, 2019 at 7:12 PM Joel Serrano <joel at textplus.com> wrote:
>
>> Hi Jason,
>>
>> When you access the XAVP you are getting all the parameters defined. You
>> can make use of the transformations [1] to select an individual value of an
>> attribute.
>>
>> In your example, it would be something along:
>>
>> $(xavp(ds_attrs=>attrs){param.value,attr1})
>>
>> Where you are making use of transformations, specifically the
>> "param.value" [2] to select the value of attribute "attr1".
>>
>> [1] https://www.kamailio.org/wiki/cookbooks/5.2.x/transformations
>> [2]
>> https://www.kamailio.org/wiki/cookbooks/5.2.x/transformations#paramvalue_name_delimiter
>>
>> Hope it helps!
>>
>> Joel.
>>
>>
>> On Wed, Jan 9, 2019 at 6:56 PM Joel Serrano <joel at textplus.com> wrote:
>>
>>> Hi Jason,
>>>
>>> We are doing that and it works. I’ll send you a snippet when I get home..
>>>
>>>
>>>
>>> On Wed, Jan 9, 2019 at 13:32 Jason.Park <Jason.Park at target.com> wrote:
>>>
>>>> Hi.
>>>>
>>>>
>>>>
>>>> When using the attributes feature of the dispatcher module, is it
>>>> possible to directly access/address an individual attribute directly?
>>>>
>>>>
>>>>
>>>> For example, if I use the following dispatcher text file:
>>>>
>>>> --
>>>>
>>>> # line format
>>>>
>>>> # setid(int) destination(sip uri) flags(int,opt) priority(int,opt)
>>>> attributes(str,opt)
>>>>
>>>> 1234 sip:10.10.10.10:5060;transport=tcp 0 0 attr1=red;attr2=blue
>>>>
>>>> --
>>>>
>>>>
>>>>
>>>> And this config snippet, I was hoping to be able to access the
>>>> attribute with a variable.
>>>>
>>>> --
>>>>
>>>> modparam("dispatcher", "attrs_pvname", "$vxavp(ds_attrs)")
>>>>
>>>> if(ds_is_from_list(1234,1)) {
>>>>
>>>>                 x_log(“L_NOTICE”,”attr1: $xavp(ds_attrs=>attr1)\n”);
>>>>
>>>> }
>>>>
>>>> --
>>>>
>>>>
>>>>
>>>> Jason Park | Lead Engineer | Voice Services | ¤ Target
>>>> <http://www.target.com/> | TNC | 816-273-8336
>>>>
>>>>
>>>> _______________________________________________
>>>> Kamailio (SER) - Users Mailing List
>>>> sr-users at lists.kamailio.org
>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>
>>>
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