Semantic Search - Faceted Search and Web 3.0 for Drupal

Looks like I'll be using a hybrid approach of the HTTP client, and a custom class running on JAVA to do the aggregation emulation.

Here's a recap of the consequences.
The first points of failure are (since the HTTP client for Sesame works great):

* SPARQL/Sesame not having Aggregate functions
* Sesame not having ORDER BY

This produces large amounts of results and/or queries, which then need to be parsed by JSON, leading to the second point of failure

* Zend JSON and native php 5.2 JSON are not fast enough (perhaps they should not be expected to be for 6000 results)

I'm going to take an application specific approach to solving the problems I'm facing with speed. By application specific, I mean that I will depend on another piece of software in the dependency chain - that being Caucho's Resin fast Java serverlet container. Why? To avoid sending lots of data and doing lots of queries over HTTP.