TW Web Site Page Population

From Semantic Portal Wiki

TW Web Site

Project Information

Announcements Calendar

Project Organization

Meeting Notes Scheduled Milestones Working Groups Project Members

Design

Use Cases Functional Requirements Non-Functional Requirements Design Documents Architecture Documents Technology Infrastructure

Development

Developer Guide

Software & Services

Releases Documentation Tutorials

Sample Pages:

Themes

Peter Fox User Page

Deborah McGuinness User Page

Form ID Specification

Architecture Diagram

Tim's notes on what Evan did

Evan presented at group meeting. meeting notes at [1]

slides

Server-side request handling with .htaccess and php.

apache's mod_rewrite follows .htaccess to rewrite URI requested to invoke view.php

http://wineagent.tw.rpi.edu/tw.rpi.edu/instances/Deborah_L_McGuinness

gets rewritten to

http://wineagent.tw.rpi.edu/tw.rpi.edu/view.php?src=instances.rdf&q=Deborah_L_McGuinness

and view.php is invoked.

In view.php,

if Content-type is RDF/XML, create sparql "construct" (not select) query using params in URI, execute, and return as-is.

else, special cases for HTTP-Refer = mw and drupal. provides redirect to URL rewritten assuming equivalent local names.

else, SPARQL query + xsl execute SAME kind of query as above. return RDF/XML result, tucking in xml-stylesheet PI.

<?xml-stylesheet href="****** value figured out by view.php ******" type="text/xsl"?>

magic happens. series of queries based on the URI requested. (type). doing ask queries. stops on first ASK=True you find. right now, else ASK rdf:type -> href, else ASK rdf:type -> href ... hard coded in view.php

Future: use RDF to describe which classes have which xsl stylesheets that can process them.

<?xml-stylesheet href="/tw.rpi.edu/styles/generate/person.xsl" type="text/xsl"?>

whole file goes back to client, client requests stylesheet from generate.php.

How generate.php works:

bucket of xsls, all with xsl:template name=""

generate.php?q=person.xsl?r=aResource

all xsl:templates have 3 params: name, node (a node() for rdf:Description), uri (thing you are describing)

<?xml version="1.0"?>
<?xml-stylesheet href="/tw.rpi.edu/styles/generate/person.xsl" type="text/xsl"?>
<rdf:RDF

aside: Li: how to describe what drupal/smw sites I can go to to add descriptions. read-only Linked Data. but there's no way to find out where we can add content.

Li: how is any of this controlled by the iWebPageUser?

[2]