[OpenSIPS-Users] I need some help in attr matching while forming the Branch .
Sasmita Panda
spanda at 3clogic.com
Fri Nov 3 10:03:54 UTC 2023
I really appreciate your help Ben .
To give some background of current behaviour , 1stly we are not doing
parallel forking , we are doing serial forking .
We have adjusted opensips code somehow and sorted the list of contacts
according to their registration time (*creation time column is added in the
location table for this* ).
In a branch if there are 5 contacts then we give a call to the
longest ideal contact first if that fails then opensips again try the next
longest ideal contact and so on . If All fails it gives back 500 Error .
My requirements have changed at this point .
*Agent1 call-info : sales=1,apple=20,en=5*
*Agent2 call-info : sales=15,apple=7*
*Agent3 call-info : sales=4,apple=4*
*Agent4 Call-info : hr=3,gallileo=5 *
*Invite $hdr(Call-Info) : sales,en *
*For this INVITE , Agent1 , Agent2 and Agent3 are matched candidates ** and
the elements are present in their attribute . Now the question is
who should I give the call first . *
*Here I have to calculate the average level of both the agent and which one
will be the greatest 1st call sent out to that agent . *
*When I am saying theoretically it seems achievable through config
adjustment . But the question is now how ? *
*Agent1 average skill level : (1+20)/2 =10.5*
*Agent2 average skill level : (15+7)/2=11 (Now Agent2 is in higher skill
. )*
*Agent3 average skill level : (4+4)/2=4 *
*Now the highest average skill level is Agent2 , Call will be sent out to
Agent2 if fails then will go to Agent1 if fails then will go to Agent3 . *
*Again this is a challenge for me . Is there any other module or table on
which I can save the branch with its skill level and then while sending out
call I will check the skill level and then send out . How will I achieve
this ?*
*Thanks & Regards*
*Sasmita Panda*
*Senior Network Testing and Software Engineer*
*3CLogic , ph:07827611765*
On Fri, Nov 3, 2023 at 2:28 AM Ben Newlin <Ben.Newlin at genesys.com> wrote:
> Sasmita,
>
>
>
> I can’t provide a working example as I don’t have a use case like this.
> However, this piece of script you’ve provided does not represent a correct
> flow. I think you may need to review how the different types of routes, and
> particularly branch routes, work. [1]
>
>
>
> I don’t have any experience with Registrar module, so take all of the
> following with a grain of salt. Someone with more experience with registrar
> can maybe keep me honest here.
>
>
>
> You should only need to call next_branches() one time, as it already loads
> all contacts returned by lookup() into parallel branches (assuming you are
> using the “b” flag for lookup()). This means they are all sent out at once,
> not serially. So you don’t need to send the next branch in failure_route
> because they’ve all already been sent.
>
>
>
> The branch route is executed as the last route before the message is being
> sent out. You certainly do not need to call next_branches() there either,
> in fact its behavior in a branch route is not defined in the docs. Also, I
> don’t know what your route “1” does, but you likely don’t need it from
> branch route either. As long as you don’t drop the branch, it will
> automatically be sent out. Lastly, you have the actual drop() command
> commented out, so this code won’t work as I described.
>
>
>
> Lastly, failure_route is armed for the whole request. In the case of
> parallel branching, it will only be called once for the request, not once
> for each branch, and only if all branches receive negative replies.
>
>
>
> One thing I’m not clear about is what happens if you end up dropping all
> the branches. I don’t know if failure_route would be called then, but it
> would be pretty easy to verify that. I think it would.
>
>
>
> Again, I can’t speak to your specific use case, but a representative
> version of the solution I recommended is below. **I have not tested or
> verified this code.**
>
>
>
> route {
>
> # all of your normal routing logic
>
>
>
> if (lookup(“<domain>”, “b”)) {
>
> if (next_branches()) {
>
> t_on_branch(“check_attrs”);
>
> t_on_failure(“no_branches”);
>
> }
>
> else {
>
> # handle case of no contacts
>
> t_reply(404, “Not Found”);
>
> }
>
> }
>
> else {
>
> # handle case of failed lookup
>
> t_reply(404, “Not Found”);
>
> }
>
> }
>
>
> branch_route[check_attrs] {
> $var(count) = $(hdr(Call-Info){csv.count});
>
> while($(var(count) >= 0)) {
> if ($(avp(attr){s.index, $(hdr(Call-Info){csv.value,$var(i)})}) ==
> NULL) {
>
> # as soon as one requirement doesn’t match, you know you don’t want
> to route
>
> drop();
>
> }
>
>
>
> xlog("count: $var(count)\n");
> $var(count) = $var(count) - 1;
> }
>
> }
>
>
>
> failure_route[no_branches] {
> # handle case where all branches failed
>
> t_reply(404, “Not Found”);
> }
>
>
>
> [1] https://www.opensips.org/Documentation/Script-Routes-3-2
>
>
>
> Ben Newlin
>
>
>
> *From: *Users <users-bounces at lists.opensips.org> on behalf of Sasmita
> Panda <spanda at 3clogic.com>
> *Date: *Thursday, November 2, 2023 at 9:36 AM
> *To: *OpenSIPS users mailling list <users at lists.opensips.org>
> *Subject: *Re: [OpenSIPS-Users] I need some help in attr matching while
> forming the Branch .
> ------------------------------
>
> Hi Ben ,
>
>
>
>
>
> failure_route[1] {
> if ( t_check_status("404|477|480|481|408|486|50[234]")){
> if (next_branches())
> {
> t_on_branch("attr");
> }
>
> }
> }
>
>
> branch_route[attr]
> {
> $var(count) = $(hdr(Call-Info){csv.count});
>
> $var(i) = 0;
> $var(match-count) = 0;
>
> while($var(i) < $(var(count))){
>
> if ($(avp(attr){s.index, $(hdr(Call-Info){csv.value,$var(i)})})
> != NULL){
> xlog("counter: $var(i)th index matched in attribute \n");
> $var(match-count)= $var(match-count) + 1;
> }
> xlog("counter: $var(i)\n");
> $var(i) = $var(i) + 1;
> }
>
> if ($var(i) == $var(match-count)){
> ## Here I want to give call to that contact .. if that fails then again it
> should come to next branch and again compare
> t_on_failure("1");
> route(1);
> }
> else{
> # Here if the condition does not match . then i want to do the comparison
> again
> if (next_branches()){
> t_on_branch("attr");
> }
> # drop();
> }
> }
>
>
>
> As for my expectation, it's not working . How does it work ? Where should
> I use T_branch_Idx ? Can I get some examples of this ?
>
>
>
>
> *Thanks & Regards*
>
> *Sasmita Panda*
>
> *Senior Network Testing and Software Engineer*
>
> *3CLogic , ph:07827611765*
>
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
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