[jetty-users] How to write a stream-oriented servlet response filter?

[John English <john.foreign@xxxxxxxxx>]

Apologies in advance: this is not a Jetty-specific question, but I thought 
someone here might be able to help me anyway...

I have an XSLT filter which transforms XML output from a servlet to HTML. The 
filter uses a CharResponseWrapper to extract the response output as a string and 
then run it through the transformer. This works fine unless the output is larger 
than a certain size, at which point I get an OutOfMemoryError.

The sensible way to deal with this would presumably be to connect up the 
response's output stream to the transformer's input source, so that I don't have 
to materialise all the output as a string before I start transforming it. I 
can't find any examples which show how I can do this; all the examples I've seen 
also work by materialising the output as a string before processing it.

Please can anyone point me at a sensible example which filters the output in a 
stream-oriented way?

TIA,
--
John English