Hi
I've tried to use it, but the LSResourceResolver was never called:
public class SchemaTest {
public static void main(String[] args) throws Exception {
SchemaFactory factory = SchemaFactory.newInstance
(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = factory.newSchema();
Validator validator = schema.newValidator();
validator.setResourceResolver(new Resolver());
validator.validate(new StreamSource(new File(args[0])));
}
private static class Resolver implements LSResourceResolver {
public LSInput resolveResource(
java.lang.String type, java.lang.String namespaceURI,
java.lang.String publicId, java.lang.String systemId,
java.lang.String baseURI) {
System.out.println(type + " / " + namespaceURI + " / " +
publicId + " / " + systemId + " / " + baseURI);
return null;
}
}
}
I haven't used the Validator stuff before. Do I have to configure
something more? My test xml looks like:
<root xmlns="http://example.com/root";>
<child>test</child>
</root>
And the test program fails with the following exception:
Exception in thread "main" org.xml.sax.SAXParseException: cvc-elt.1:
Cannot find the declaration of element 'root'.
at
com.sun.org.apache.xerces.internal.jaxp.validation.Util.toSAXParseExcept
ion(Util.java:109)
at
com.sun.org.apache.xerces.internal.jaxp.validation.ErrorHandlerAdaptor.e
rror(ErrorHandlerAdaptor.java:104)
at
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError
(XMLErrorReporter.java:382)
at
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError
(XMLErrorReporter.java:316)
at
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStar
tElement(XMLSchemaValidator.java:1944)
at
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startEleme
nt(XMLSchemaValidator.java:705)
at
com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorHandlerImpl.
startElement(ValidatorHandlerImpl.java:335)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElemen
t(AbstractSAXParser.java:533)
at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanSta
rtElement(XMLNSDocumentScannerImpl.java:330)
at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl
$NSContentDispatcher.scanRootElementHook
(XMLNSDocumentScannerImpl.java:779)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl
$FragmentContentDispatcher.dispatch
(XMLDocumentFragmentScannerImpl.java:1794)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.s
canDocument(XMLDocumentFragmentScannerImpl.java:368)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse
(XML11Configuration.java:834)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse
(XML11Configuration.java:764)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse
(XMLParser.java:148)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse
(AbstractSAXParser.java:1242)
at
com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl.process
(ValidatorImpl.java:192)
at
com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl.validat
e(ValidatorImpl.java:159)
at javax.xml.validation.Validator.validate(Validator.java:82)
at SchemaTest.main(SchemaTest.java:14)
Simon
On 25.09.2006, at 23:06, Dick Deneer wrote:
Can't you use the LSResourceResolver in combination with the JAXP
Validator.
Dick Deneer
Op 25-sep-2006, om 22:22 heeft Simon Raess het volgende geschreven:
Hi
I'm developing an XML format that is extensible. The format serves
as a kind of container with well-defined extension points. The
following example shows a document that is similar to the format
I'm using:
<container xmlns="urn:container">
<binding name="x"/>
<access xmlns="urn:xpath">...</access>
</container>
I want to validate the above XML against the corresponding
schemas. However, I don't want to specify the schema locations
inside the document (I don't trust the creators of the document).
I'd like to look up the schemas at runtime based on the namespace
attribute. Unfortunately, I haven't been able to figure out how to
tell Xerces which schema to use to validate the document.
I know, I could specify all the schema locations programatically.
But I don't want to do that. I'd rather have Xerces ask me on
demand how to resolve the namespace to a schema document (kind of
like an EntityResolver but based on the namespace).
Is this approach possible with Xerces? If yes, how?
Thanks
Simon
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