You could try writing a filter which sits in between the parser and the
validator that modifies the namespace URIs passed through startElement()
and endElement(). Take a look at XMLFilter [1] and XMLFilterImpl [2].
Thanks.
[1]
http://xerces.apache.org/xerces2-j/javadocs/api/org/xml/sax/XMLFilter.html
[2]
http://xerces.apache.org/xerces2-j/javadocs/api/org/xml/sax/helpers/XMLFilterImpl.html
Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrglavas@xxxxxxxxxx
E-mail: mrglavas@xxxxxxxxxx
"Vila Christophe" <Christophe.VILA@xxxxxxxxxxx> wrote on 04/23/2007
02:03:03 PM:
> Hi all,
>
> I have to write a module that parses very big XML files (>10MB) having
> always the same structure. I have written a schema and would like to
> validate these XML files with it... But of course, the XML files do not
> declare any schema (the root element is <order> instead of <order
> xmlns="mySchemaName"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:schemaLocation="mySchemaName mySchemeURI">).
>
> I tried the validation API of JAXP (see the following piece of code),
> but it only works if I declare at least the schema name in the XML file
> (that is to say <tag xmlns="mySchemaName">)
>
> SchemaFactory schemaFactory =
> SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
> Schema schema = schemaFactory.newSchema(new StreamSource(new
> File("myschema.xsd")));
> schema.newValidator().validate(new StreamSource(new File("big.xml")));
>
> I also tried ValidatorHandler, but I don't know how to add the xmlns
> attribute when I am parsing the root element.
>
> So, is there a way to :
> - force the validation against my schema without modifying the XML files
> (no declaration of scheme name and location)
> - validate and parse at the same time (I don't want to read the XML
> files twice)
> - use only SAX way (because of the XML file size)
>
> Thanks !
>
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