- From: Mark Nottingham <mnot@mnot.net>
- Date: Thu, 9 Feb 2006 11:54:50 -0800
- To: Mark Little <mark.little@jboss.com>
- Cc: Paul Fremantle <pzfreo@gmail.com>, public-ws-addressing@w3.org
Speaking just as me... It sounds like there are a lot of potential use cases for From. What's less than clear is whether they're compatible; i.e., if WS-Foo says wsa:From should contain a URI that corresponds to the MAC address of your ethernet controller, WS-Bar says wsa:From should contain a urn:uuid for your service (as we're already seeing from our friends from the North, apparently), and WS-Baz says it should be your IP address, how do you use these specifications in a "composable" fashion? Of course, From could changed to allow more than one URI, but then how do you pick which one is the appropriate one? E.g., if I see three http:// URIs in there, which one is MY From? Smashing a bunch of different use cases into one vague semantic bucket isn't interoperable; it's asking for trouble. I see no reason why these different cases can't specify different headers to contain the information they need; yes, WS-Addressing is one boat that they could hop onto on the way to standards paradise, but there are others. Cheers, On 2006/02/08, at 4:11 AM, Mark Little wrote: > > +1 > > I don't see what it adds in removing it, but I can see what it > removes by removing it. > > Mark. > > > Paul Fremantle wrote: >> Hi >> >> I'd like to write in support of wsa:From. >> >> 1) A lot of mediation (SLA provision, security checks, etc) is >> based on who/where the message came from. From is useful for that. >> 2) WSA makes WS-* much more "peer-to-peer". But knowing where a >> message comes from is a key part of that. >> >> For example we in Apache Synapse are allowing users to do custom >> routing based on wsa:From. >> >> Paul >> >> -- >> Paul Fremantle >> VP/Technology, WSO2 and OASIS WS-RX TC Co-chair >> >> http://bloglines.com/blog/paulfremantle >> paul@wso2.com <mailto:paul@wso2.com> >> >> "Oxygenating the Web Service Platform", www.wso2.com <http:// >> www.wso2.com> > > -- Mark Nottingham http://www.mnot.net/
Received on Thursday, 9 February 2006 19:55:01 UTC