[Exist-open] streaming xml and binary data to the db

[Alistair M. <ali...@go...>]

Hi folks,

I've just noticed that the request:get-data() function [1] reads all of the
data sent in the body of the http request into a byte array before doing
anything else with it. This means that the amount of data you can send
to an xquery web service, and the number of concurrent requests with any
substantial payload, will be limited by the size of the jvm.

Can anyone point me at examples of how to stream both binary content and xml
data from an http request directly to the exist db? I'd like to be able to
implement xquery functions that do this, so I could scale an xquery-based
web service to multiple concurrent requests with multi-GB binary and xml
content. I've had a look around in the eXist src, but any pointers would be
greatly appreciated.

Cheers

Alistair

[1] https://exist.svn.sourceforge.net/svnroot/exist/trunk/eXist/src/org/exist/xquery/functions/request/GetData.java

-- 
Alistair Miles
Head of Epidemiological Informatics
Centre for Genomics and Global Health <http://cggh.org>
The Wellcome Trust Centre for Human Genetics
Roosevelt Drive
Oxford
OX3 7BN
United Kingdom
Web: http://purl.org/net/aliman
Email: ali...@gm...
Tel: +44 (0)1865 287669