I've really tried to find out what I am doing wrong here.
Basically, I am using my own DOMLSResourceResolver to use a local copy
of XHTML 1.1 Strict DTD for many hundreds of XHTML documents.
But the parser seems to be refusing to cache it, or find it - so it is
asking for a new copy for each document.
I am sure I am doing something wrong - but what I noticed was that
srcToFill->getSystemId() is not returning the SystemID that I set.
Here are the parser settings I am using.
dc->setParameter(XMLUni::fgDOMResourceResolver,myResourceHandler);
dc->setParameter(XMLUni::fgXercesValidationErrorAsFatal, false);
dc->setParameter(XMLUni::fgXercesUserAdoptsDOMDocument, true);
dc->setParameter(XMLUni::fgXercesUseCachedGrammarInParse, true);
dc->setParameter(XMLUni::fgXercesSchema, true);
dc->setParameter(XMLUni::fgXercesSchemaFullChecking, true);
dc->setParameter(XMLUni::fgXercesContinueAfterFatalError, true);
dc->setParameter(XMLUni::fgXercesCacheGrammarFromParse, true);
dc->setParameter(XMLUni::fgDOMElementContentWhitespace, false);
dc->setParameter(XMLUni::fgDOMNamespaces, true);
dc->setParameter(XMLUni::fgDOMDatatypeNormalization, true);
dc->setParameter(XMLUni::fgXercesLoadExternalDTD, false);
dc->setParameter(XMLUni::fgXercesIgnoreCachedDTD, false);
dc->setParameter(XMLUni::fgDOMValidateIfSchema, true);
My call traces were as follows:
void TraverseSchema::preprocessImport(const DOMElement* const elem)
InputSource* srcToFill =
resolveSchemaLocation
(schemaLocation,XMLResourceIdentifier::SchemaImport, nameSpace);
(which goes to)
InputSource* TraverseSchema::resolveSchemaLocation(const XMLCh* const
loc,
const
XMLResourceIdentifier::ResourceIdentifierType resourceIdentitiferType,
const XMLCh* const nameSpace)
(which goes to)
InputSource* DOMLSParserImpl::resolveEntity( XMLResourceIdentifier*
resourceIdentifier ) {
if (fEntityResolver) {
DOMLSInput* is = fEntityResolver-
>
resolveResource
(resourceIdentifier
>getResourceIdentifierType()==XMLResourceIdentifier::ExternalEntity?
XMLUni::fgDOMDTDType:XMLUni::fgDOMXMLSchemaType,
resourceIdentifier->getNameSpace(),
resourceIdentifier->getPublicId(),
resourceIdentifier->getSystemId(),
resourceIdentifier->getBaseURI());
if (is)
return new (getMemoryManager()) Wrapper4DOMLSInput(is,
fEntityResolver, true, getMemoryManager());
}
if (fXMLEntityResolver) {
return(fXMLEntityResolver->resolveEntity(resourceIdentifier));
}
return 0;
}
//DOMLSParserImpl::resolveEntity calls my resolveResource which I have
added using XMLUni::fgDOMResourceResolver
//where I construct a new DOMLSInput with createLSInput //which
contains, in this case, a local copy of XHTML 1.1 Strict DTD.
[...]
DOMLSInput* srcToFill = ((DOMImplementationLS*)Manager::parser()-
>impl)->createLSInput();
srcToFill->setStringData(my_dtd_xhtml1_grammar); //This DTD is
already XMLCh encoded, and is definitely correct.
srcToFill->setEncoding(XMLUni::fgXMLChEncodingString);
srcToFill->setPublicId(publicId);
srcToFill->setSystemId(systemId);
return srcToFill;
[...]
The returned LSInput bubbles back upt to preprocessImport,
TraverseSchema, Line 830:
const XMLCh* importURL = srcToFill->getSystemId(); <<-- returns
NULL even though I set it in the DOMLSInput.
