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Reptile
(an OpenPrivacy project)

XSLT

Overview:

Reptile content generation is done via multiple pass XSLT transforms. This allows us to abstract certain operations into individual stylesheets.

Any complex operation is extended via the use of Xalan XSLT extensions. This allows us to tightly incorporate Java or other scripts with each leg of content generation.

XSLT rendering via sequences

Most reptile content generation is done via a series of XSLT transformations known as sequences. These act as a stack of stylesheets with an input and output as XML. The input is usually read from a URL as a Java InputStream passed to Xalan.

The output is formed from the multiple transformations. This is collected and then passed to the requester.

All sequences are registered in 'resource:/xml/sequence-dispatch.xml'. This is parsed by Reptile when given a sequence that needs to be dispatched.

XML Content Controls

All remote content (RSS, etc) is passed through a content XSL which pulls down the URL via a Panther Proxy and applies the correct stylesheet. The proxy is used so that we can buffer remote content and it can also access "resource:" URIs directly from the WAR. The correct stylesheet is chosen based on content type and is responsible for generating XML with the correct structure.

  Reptile is the banner freeware project of the OpenPrivacy initiative