I am trying to set up grammar caching and have things working nicely for
XML schemas but not for DTDs. I am effectively doing the following:
xercesc::XMLGrammarPool* grammarPool =
xercesc::XMLGrammarPoolImpl(xercesc::XMLPlatformUtils::fgMemoryManager);
parser =
xercesc::XMLReaderFactory::createXMLReader(xercesc::XMLPlatformUtils::fgMemoryManager,
grammarPool));
parser->setFeature(xercesc::XMLUni::fgXercesCacheGrammarFromParse, true);
parser->setProperty(xercesc::XMLUni::fgXercesScannerName,
static_cast<void*>(const_cast<XMLCh*>(xercesc::XMLUni::fgDGXMLScanner)));
parser->setFeature(xercesc::XMLUni::fgSAX2CoreValidation, true);
When an XML document with no internal subset is parsed referring to an
external DTD:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE library SYSTEM "example.dtd">
<library> ...
I get the error:
(system id 'example-dtd.xml', line 2, char 40): An exception occurred!
Type:NoSuchElementException, Message:The key '{0}' could not be found
in the hash table
I put some printf()s into my resolveEntity() call back and was interested
to see resolveEntity() being called twice. The first time with a null
publicId and 'example.dtd' as the systemId, the second time with an empty
string for the publicId and 'example.dtd' as the systemId.
This error does not occur if I replace the lines
parser =
xercesc::XMLReaderFactory::createXMLReader(xercesc::XMLPlatformUtils::fgMemoryManager,
grammarPool));
parser->setFeature(xercesc::XMLUni::fgXercesCacheGrammarFromParse, true);
with
parser = xercesc::XMLReaderFactory::createXMLReader();
and therefore do not use grammar caching. When no caching is used, I just
get one call to resolveEntity().
As mentioned above, caching is working fine for XML schemas when I use the
SGXMLScanner.
At one point, I suspected that maybe I needed to call setSystemId() and/or
setPublicId() on the InputSource I return from resolveEntity(), and did:
buf->setSystemId(p_systemId);
buf->setPublicId(NIL);
But this didn't help.
Is this a known problem? Any suggestions beyond submitting a testcase to
jira?
Daniel
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
