<div dir="ltr">Perhaps this approach will help. For example:<div><br></div><div>Using a key pattern of 'w.x.y.z':</div><div><br></div><div>A server supports: 'w.x.y.-'</div><div><br></div><div>A message needs: '-.x.y.-'</div>
<div><br></div><div>Bind with the complement of the server pattern: '*.*.*.z'</div><div><br></div><div>Publish with the complement of the message pattern: 'w.-.-.z'</div><div><br></div><div>If server capabilities overlap there is still a routing problem...</div>
<div><br></div><div>ml<br><div><br>
</div><div><br></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Oct 30, 2013 at 9:54 AM, Lawrence Freil <span dir="ltr"><<a href="javascript:_e({}, 'cvml', 'lef@apago.com');" target="_blank">lef@apago.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
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?<br>
<br>
Thanks.<span><font color="#888888"><br>
<br>
<br>
-- <br>
Lawrence Freil<br>
<br>
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