XOM API for Processing XML with Java

[peter murray-rust <pm286 AT cam.ac.uk>]

At 13:30 19/12/2005, Steve Loughran wrote:

> sometimes xerces doesnt like spaces in filenames. Those schema
> locations should not have spaces in, but %20 bits where they go. You
> can use File.toURI or something to create valid uris. But personally,
> I'd leave them out altogether.

Thanks - I hate spaces in filenames and never use them - I think they 
are being added by some relative addressing process

> >
>
>
> you need to look at how you can point xerces at schema locations.
> There are properties for that, and for generic JAXP parsers (as a
> fallback)
>
> http://cvs.sourceforge.net/viewcvs.py/smartfrog/core/components/xml/src/org/smartfrog/services/xml/utils/XmlConstants.java?view=markup
>
> This is Ant 1.7's schemavalidate task:
> https://svn.apache.org/viewcvs.cgi/ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/optional/SchemaValidate.java?view=markup
>
> I use a catalog myself, which registers the stuff with xerces, but
> also registers itself to resolve any URL, and returns the files that
> are included on the classpath:
>
> http://cvs.sourceforge.net/viewcvs.py/smartfrog/core/extras/cdl/src/org/smartfrog/sfcore/languages/cdl/CdlCatalog.java?view=markup
> http://cvs.sourceforge.net/viewcvs.py/smartfrog/core/components/xml/src/org/smartfrog/services/xml/utils/XmlCatalogResolver.java?view=markup
>
> I've found that matching on the last thing on the path works best, for
> reasons I dont understand.
>
>
>
> > I would be grateful for pointers as to how to mend this and also ways
> > of schema validation which do not require embedding absolute or
> > relative addresses within the XML instances.
>
> use a catalog; hand it off to your parser to resolve things and return
> files on the classpath; add **/*.xsd to your JAR. Add some logging to
> the catalog for extra diagnostics of trouble.

Thanks again,
This has given me courage to return to catalogs (which I used under 
SGML but for which there was limited support at the time). Sounds 
like they have a better toolkit now.

P.




Peter Murray-Rust
Unilever Centre for Molecular Sciences Informatics
University of Cambridge,
Lensfield Road,  Cambridge CB2 1EW, UK
+44-1223-763069