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COSMOS SDD Tooling Validator Design
Contents
Overview
The SDD Validator is an Eclipse plug-in that provides functionality for validating XML against various types of rule sets. Currently supported types of rules are XML Schema rules, Schematron rules and custom user created rules written in Java. The Validator also provides the ability to read XML into SDO's, and write the SDO's back out to XML. While intended primarily for working with SDD's, the Validator is flexible enough to handle any arbitrary XML.
There are two methods available for using the Validator. First, an Eclipse based application may required the Validator as plug-in dependency and use the provided API's. Second, the Validator includes the ability to run as an Eclipse Rich Client Platform (RCP) application with a command line interface.
Rules
All rules must implement the ValidationRule interface, which contains a single method: validate(). A rule may perform any kind of validation action desired, provided it takes an InputStream as input and returns an array of XMLValidationError. Below are the pre-written rule types included with the Validator.