InitialContext lookup over HTTP using a full PROVIDER_URL (including path)

Hi,
We have a standalone Java JMS client application that is sending messages to a queue on a WebLogic (WLS 9.2 MP3) server. It uses the WLInitialContextFactory (WebLogic implementation of InitialContextFactory) class to look up the initial context over HTTP when making the connection to send messages to the queue.
This all works fine when the client connects directly to the server - i.e. supplies the address of the server as the PROVIDER_URL. However, in our infrastructure, we cannot connect directly from this client to the server; we need to go via a HTTP proxy.
In a basic configuration HTTP proxy we set the provider URL to be the address of the proxy server, with the proxy is configured to route all requests straight through to the WebLogic server. This configuration also works fine - the JMS client can send messages successfully.
Unfortunately, this basic proxy configuration is still not sufficient for our Production environment. Our production proxy "fronts" multiple servers, each one identified by the first portion of the URL. So, the proxy is be configured such that requests to "http://proxy/server1/test_request" will be routed on to "http://server1/test_request", whereas a request to "http://proxy/server2/test_request" will be routed to "http://server2/test_request". This configuration works fine for basic HTTP requests, to webpages etc.
However, when we try we use this mechanism with our JMS client over HTTP, it is not working. We set the provider URL on the client to "http://proxy/server1" in order to send a message to server1. However, we find that the WLInitialContextFactory class seems to be ignoring the final part of the URL ("server1") and still sending requests directly to the root proxy address of "http://proxy", so it doesn't work.
I appreciate that this can be viewed as a WebLogic specific implementation issue for their WLInitialContextFactory, and I've raised a query with their support people on this. From my own research however, it seems the behaviour of their factory is not different to most other implementations - i.e. the major implementations would all have this issue.
I'm wondering if anyone is aware of any implementations that would handle the situation I've described. If not (or otherwise!) is there something crazy about our approach that noone has catered for it?! It seems a reasonable situation to me, but maybe I'm missing something!
Any comments, advice, etc. would be greatly appreciated, thanks.
Regards,
Adrian
Edited by: AdrianFitz on 08-Apr-2010 12:21

Hi,
Thanks for the quick response. Would you mind providing a bit more detail on your suggestion, as am not 100% sure I understand it fully.
If I see what you are getting at, are you talking about configuring proxy settings on my client side, similar to how I have to configure my internet browser with proxy settings when accessing the internet from within my companys LAN?
If I'm interpreting that right, then I guess my use of the word proxy might be a bit inaccurate or lead to some confusion. What my orginal post described as a proxy should have been more accurately describes as a reverse proxy (acting primarily as a load balancer).
Ideally, other than changing the URL slightly, the client should be 'unaware' that it is going through a proxy at all.
Hope that clarifies somewhat, any further comments would be great! Thanks.
Regards,
Adrian

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