[rabbitmq-discuss] queue selection based on a 'feature list'

Lawrence Freil lef at apago.com
Wed Oct 30 13:54:19 GMT 2013


I'm attempting to create a distributed message processing system in which 
messages posted requires a list of features and can only be posted to 
queues which have all the required features. In addition it needs to act as 
a direct exchange in that only one queue should receive a message. In 
looking over both the headers and topic exchanges it seems the wildcards 
are specified the wrong way around for this. For example, I have servers 
which can support optional features of w,x,y and z. When I publish a 
message it may require x and y. I don't care if the server it runs on 
supports w and z. So what I really need is the message to support the 
'pattern'' and the queues to support the 'string'. Is there a way to 
accomplish this with the current exchanges?


Lawrence Freil

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