Schema validation against a XSD in resource file

["Frank, Ulrich" <Ul...@vector-informatik.de>]

Hi,

I'd like to validate my xml files against a xsd file linked to my binary (in a Windows resource).
I use a XercesDOMParser instance to create a DOM of my XML.
Is there a possibility to validate against a string wich contains the xsd resource???

Thanks,
Ulrich

Re: Schema validation against a XSD in resource file

[Simon Kitching <si...@ecnetwork.co.nz>]

On Tue, 2004-09-14 at 18:35, Frank, Ulrich wrote:
> Hi,
> 
> I'd like to validate my xml files against a xsd file linked to my
> binary (in a Windows resource).
> I use a XercesDOMParser instance to create a DOM of my XML.
> Is there a possibility to validate against a string wich contains the
> xsd resource???
> 

Yes, a schema is located like any other "external entity".

So you just need to create a custom EntityResolver, override the
"resolveEntity" method to return the string you've fetched from the
resource file, and call parser->setEntityResolver(...).


Regards,

Simon


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RE: Schema validation against a XSD in resource file

[Matthew Berry <ma...@apt.com>]

Ulrich wrote:

> I'd like to validate my xml files against a xsd file linked to my binary
(in a Windows resource).
> I use a XercesDOMParser instance to create a DOM of my XML.
> Is there a possibility to validate against a string wich contains the xsd
resource???

If you save the import the XSD into your project as an HTML resource, you
could use the following code.

	// Load the reporting schema from the resources
	const HRSRC hSrcXsd = FindResource(hInstResource,
                                           MAKEINTRESOURCE(IDR_XSD),
                                           RT_HTML);

	const HGLOBAL hGblXsd = LoadResource(hInstResource,
	                                      hSrcXsd);

	const char* const pXsdXml = static_cast<const char*>(
LockResource(hGblXsd) );


You can then add this to a Grammar cache associated with your parser

   DOMBuilder* pParser = ...

   MemBufInputSource XsdInputSrc(pXsdXml, ....);

   pParser->loadGrammar( Wrapper4InputSource(&XsdInputSrc, false),
                          Grammar::SchemaGrammarType,
				  true /* Save in Cache */);

   pParser->setFeature(XMLUni::fgXercesUseCachedGrammarInParse, true);

Hope this helps


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