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From Florent Philippe <phil_flor...@yahoo.fr>
Subject MemBufInputSource ? how do you do a simple memory parsing ..?
Date Wed, 06 Sep 2006 22:20:33 GMT
Hello,
 
I try to figure out how to parse memory like a tree,I already parse with SAX and a mem buffer
inputsource and it works progressively or in one shot, but how do i get the results ?
 
The thing is I added some enumeval exemple parts, hoping that I would have an output or something
but it reach the error :Non schema document, no output available
I don't want to use DTD, I only want to be able to parse the elements of the xml string buffer(comes
from network)
i thought 1st parsefirst and parsenext would do the trick but how is it possible to get the
values of the xml tags and attributes ?
 
here is the code :
 
    SAXParser* parser = new SAXParser;
    parser->setValidationScheme(SAXParser::Val_Always);
    parser->setDoNamespaces(true);
    parser->setDoSchema(true);
    //parser->setValidationSchemaFullChecking(false);    ----- don't work if i uncomment
it
    MemParseHandlers handler;
    parser->setDocumentHandler(&handler);
    parser->setErrorHandler(&handler);
  
    MemBufInputSource* memBufIS = new MemBufInputSource((const XMLByte*)XMLBuffer, size, gMemBufId,
false);
    unsigned long duration;
    int errorCount = 0;
    try
    {
        //////////////////////////////// full parse
  const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis();
        parser->parse(*memBufIS);
        const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis();
        duration = endMillis - startMillis;
        errorCount = parser->getErrorCount();
        // Create a progressive scan token
/*        XMLPScanToken token;
        const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis();
        if (!parser->parseFirst(*memBufIS, token))
        {
            LogPrint(MT_ERROR,"error reading XML");
            XMLPlatformUtils::Terminate();
            return false;
        }
        bool gotMore = true;
        while (gotMore && !parser->getErrorCount())
            gotMore = parser->parseNext(token);
        const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis();
        duration = endMillis - startMillis;
        errorCount = parser->getErrorCount();
        parser->parseReset(token);*/
    }
    catch (const OutOfMemoryException&)
    {
        LogPrint(MT_ERROR,"OutOfMemoryException");
     XMLPlatformUtils::Terminate();
  return false;
    }
    catch (const XMLException& e)
    {
        LogPrint(MT_ERROR,"Error during parsing memory stream:Exception message is:  %s",StrX(e.getMessage()));
     XMLPlatformUtils::Terminate();
        return false;
    }
 if (!parser->getValidator().handlesSchema())
 {
  LogPrint(MT_ERROR," Non schema document, no output available");
  return false;
 }
 Grammar* rootGrammar = parser->getRootGrammar();
 if (!rootGrammar || rootGrammar->getGrammarType() != Grammar::SchemaGrammarType)
 {
  LogPrint(MT_ERROR," Non schema grammar, no output available" );
---------------------error comes here ----------------------------------------------
  return false;
 }
 
 SchemaGrammar* grammar = (SchemaGrammar*) rootGrammar;
 RefHash3KeysIdPoolEnumerator<SchemaElementDecl> elemEnum = grammar->getElemEnumerator();
 if (!elemEnum.hasMoreElements())
 {
  LogPrint(MT_ERROR,"The validator has no elements to display");
  return false;
 }
 //DTDValidator* valToUse = new DTDValidator;
    // Print out the stats that we collected and time taken.
    if (!errorCount) 
 {
  while(elemEnum.hasMoreElements())
  {
   const SchemaElementDecl& curElem = elemEnum.nextElement();
 
   // Name
   LogPrint(MT_INFO,"Name:\t\t\t%s",StrX(curElem.getFullName()));
 
   // Model Type
   LogPrint(MT_INFO,"Model Type:\t\t",StrX(curElem.getFullName()));
   switch( curElem.getModelType() )
   {
   case SchemaElementDecl::Empty:          LogPrint(MT_INFO,"Empty");         break;
   case SchemaElementDecl::Any:            LogPrint(MT_INFO,"Any");           break;
   case SchemaElementDecl::Mixed_Simple:   LogPrint(MT_INFO,"Mixed_Simple");  break;
   case SchemaElementDecl::Mixed_Complex:  LogPrint(MT_INFO,"Mixed_Complex"); break;
   ...
   ...
 
please help me, it seems so easy to do but I been looking for two days already
thx alot
good night folks
 
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