CODEWITHSUNDEEP
cometstomporbited
jMyles
jMyles

Reputation: 12172

Stomp - multiple subscriptions each with a unique handler

I am using Stomp / Orbited for Comet functionality.

In order to deal with multiple channels, I end up doing this:

stomp.onmessageframe = function(frame) {

if (frame.headers['destination'] == '/thisFeed/') { //handle thisFeed }

if (frame.headers['destination'] == '/thatFeed/') { //handle thatFeed }

....which is OK, I guess. But what if I don't know, at load time, how I want to handle a feed? I want to be able to do something like this:

stomp.subscribe('someOtherFeed', someOtherFeedHandler);

That way, when I subscribe, I can define the handler then and only then.

Upvotes: 1

Views: 832

Answers (1)

jMyles
jMyles

Reputation: 12172

I have come up with one solution, but it's so very far from pretty.

When I create the stomp message, I add a "handler" property as a header, like so in python:

conn.send('Frank the Wonder Llama", destination="/infoAboutLlamas/", handler='llamas')

Then, in the javascript:

    stomp.onmessageframe = function(frame) {
    window[frame.headers['handler']]() //Execute the function named by the handler
}

...so then, the function llamas() gets called. I can then define (and redefine) llamas anywhere I want.

Now I'm sure this can't be the optimal solution. I do, on the other hand, like that it gives me a bit of flexibility to specify the handler I want to use right in python. But seriously, I'm thinking there is a better way.

Upvotes: 0

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