Validate xml using nested schemas

From:

"dhek" <dhek@dhek.dk>

Newsgroups:

comp.lang.java.programmer

Date:

Sun, 5 Aug 2007 10:04:44 +0200

Message-ID:

<46b58493$0$90270$14726298@news.sunsite.dk>

Hi all,

I would like to validate an xml file using nested schemas (that is schemas
referring to other schemas).

I've tried with the following setup, but it does not work an gives me an
exception.

public void validate(InputStream xmlDocument) {
    try {
        SAXParserFactory spf = SAXParserFactory.newInstance();
        spf.setNamespaceAware(true);
        spf.setValidating(true);
        SAXParser sp = spf.newSAXParser();

        InputStream schemaA =
this.getClass().getResourceAsStream("mySchema.xsd");
        InputStream schemaB =
this.getClass().getResourceAsStream("mySchema1.xsd");

        InputStream[] schemas = {schemaA,schemaB};

        final String JAXP_SCHEMA_LANGUAGE =
http://java.sun.com/xml/jaxp/properties/schemaLanguage;
        final String W3C_XML_SCHEMA = "http://www.w3.org/2001/XMLSchema";
        final String JAXP_SCHEMA_SOURCE =
http://java.sun.com/xml/jaxp/properties/schemaSource;

        sp.setProperty(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA);
        sp.setProperty(JAXP_SCHEMA_SOURCE, schemas);

        sp.parse(xmlDocument, new ParseErrorHandler());

    } catch (SAXException e) {
        System.out.println(e.toString());
    } catch (ParserConfigurationException e) {
        System.out.println(e.toString());
    } catch (IOException e) {
        System.out.println(e.toString());
    }
}

nb: mySchema.xsd contains a reference to mySchema1.xsd.

So what I would like to know is what I'm doing wrong and which approach I
should use instead.

Hope someone can help.

Best Regards,
Daniel