Hi Michael,
Instead of mapping a servlet url to static content (I'm assuming that that is 
what you are trying to do) you can also
get the client to request the url for what the static pages would be and map 
the servlet that generates the 
static content to the 404 error handler.
In this setup the static file is always tried first, and when it doesn't exist 
the generating servlet gets the 
chance to built it from scratch in a on-demand basis.
The servlet can generate the static file, save it in the web-app content 
folders and then stream the generated
page to the client that triggered the servlet. All subsequent requests find the 
files in the content (cache) folders
and resin will serve those.
One issue to watch out for is multiple requests coming into the servlet for the 
same page, you can either keep
a collection with generation jobs and synchronise threads on it picking up the 
generated page and streaming 
it when it is ready, or just generate the first few requests in paralel and 
making sure only the first gets to save it to
the filesystem.
Hope this helps, Andre

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Michael 
Sent: Tuesday 16 October 2007 11:32
To: resin-interest@caucho.com
Subject: [Resin-interest] Serving static files dynamically from resin

Hi there,

I've googled for this, and can't seem to find anyone who wants to do the same 
thing, so I figured you guys would be the best source of information.

We run a very large website, which is generated dynamically from resin, and we 
are looking at technical failover solutions. 
We believe that there are certain cases where our workload could increase 
dramatically, and we believe that our application will not withstand such a 
large onslaught of requests.

Looking at our architecture, we believe that serving static pages will be 
possible under very high traffic loads, so we are writing a system that will 
"press" copies of dynamic pages to an html cache when they are modified.  Under 
these extreme circumstances we would like to have a module that instead of 
doing all of our processing and going to the database, instead looks in a 
static directory of html files, and if there is a static file present for the 
requested url, serves that instead. 

However, I am having difficulty finding how it is possible to get resin to 
serve a static file in response to a url, where we will have to do some mapping 
to translate the url to the file location.

We could write our own file server, but given that resins performance is pretty 
good for serving static files, we would much rather hook into resins file 
serving capabilites. 

Michael Brunton-Spall

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