[RFC] Add SpooledMessageBusMiddleware

[kbond]

I have a requirement in a Symfony app for all the events to be handled on the kernel.terminate/console.terminate events. I came up with this middleware and thought I would share.

If this is something you would like to include, I can write tests/docs.

[matthiasnoback]

Hi @kbond! Thanks for brining this up.
There have been some other initiatives for finding ways to dispatch events in different ways. I must say that handling events right-away instead of waiting until the user "has left the building" makes more sense to me - that way you can even give some visual feedback to them if you like. If you're going to postpone event handling, then I'd suggest you do it using a message queue of some sorts. That way you can monitor failures more easily and also retry failed messages, instead of only seeing them turn up in the log files as errors.

[kbond]

Yeah, I admit I am sort of creating a queue-"lite". Some of my event handlers take a second or so to be handled but I didn't want the complexity of a full queue.

Anyway, I do understand and in fact I expected your response :)

[matthiasnoback]

Hehe @kbond I'm glad to see you know me that well :) Anyway, I've heard about some good experiences with Beanstalk, which may be useful in this case.