[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Catalog Resolver for XSD and XSLT
Hi, What is the canonical way to validate XML files (loaded using JAXP/DOM) against an XSD then subsequently transform them using an XSL template having file paths determined from a catalog resolver? See this SO question for details: http://stackoverflow.com/q/25698764/59087 The posted answer works (http://stackoverflow.com/a/25698765/59087), but has undesirable traits, such as: * Using an XMLCatalogResolver and a CatalogResolver. * Creating an XML catalog resolver instance using the catalog resolver instance. * Traversing a DOM to determine the XSD URI. * Creating a SchemaFactory to perform the validation. * Calling the XML catalog resolver instance to find the local XSD file path. * Passing the catalog resolver instance to the XSL transformer instance. It seems like those aspects of the code should be handled by existing APIs, especially the contortions required to extract the XSD URI from the DOM. Contortions such as parsing processing instruction attributes or extracting the schemaLocation, depending. The project: https://bitbucket.org/djarvis/validating-catalog-resolver/ The offending code: https://bitbucket.org/djarvis/validating-catalog-resolver/raw/master/src/TestXSD.java The most problematic parts of the code are the: * getSchemaURI method; and * if( schemaURI != null ) { ... } code block. I think that they are redundant, but do not know what mechanisms are available to avoid having to manually parse and validate against an XSD whose file path is looked up using an XML catalog. Ideally, the XML file would only have to be parsed once. I'd like to avoid using the SAX2DOM class, if possible. The code works, but there must be a better way. How can parsing the processing instruction and manually calling a SchemaFactory for validation of the DOM be eliminated? How can using both XMLCatalogResolver and CatalogResolver be avoided (e.g., is an LSResourceResolver required)? Any other comments, critiques, and corrections are most welcome. Thank you.
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