C++ XercesDOMParser::adoptDocument方法代码示例

Parser* parseHTML(std::string contents) {
  try {
    XMLPlatformUtils::Initialize();
  } catch (const XMLException& toCatch) {
    char* msg = XMLString::transcode(toCatch.getMessage());
    cout << "INIT_ERR:" << endl;
    cout << msg << endl;
    XMLString::release(&msg);
    return NULL;
  }

  XercesDOMParser* parser = new XercesDOMParser();
  parser->setValidationScheme(XercesDOMParser::Val_Always);
  parser->setDoNamespaces(true);

  ErrorHandler* err = (ErrorHandler*) new HandlerBase();
  parser->setErrorHandler(err);

  try {
		MemBufInputSource xml((const XMLByte*)contents.c_str(), contents.size(), "html", false);
    parser->parse(xml);
		parser->adoptDocument();
		delete parser;
		delete err;
		XMLPlatformUtils::Terminate();
		return parser;
  } catch (const XMLException &toCatch) {
    char* msg = XMLString::transcode(toCatch.getMessage());
    cout << "XML_ERR: ";
    cout << msg << endl;
    XMLString::release(&msg);
    return parser;
  } catch (const DOMException &toCatch) {
    char* msg = XMLString::transcode(toCatch.getMessage());
    cout << "DOM_ERR: ";
    cout << msg << endl;
    XMLString::release(&msg);
    return parser;
  } catch (const SAXException &toCatch) {
		char* msg = XMLString::transcode(toCatch.getMessage());
		cout << "SAX_ERR: ";
		cout << msg << endl;
		XMLString::release(&msg);
		return parser;
	} catch (...) {
		cout << "!UNKNOWN_ERR!" << endl;
		return parser;
	}

  delete parser;
  delete err;

  XMLPlatformUtils::Terminate();

  return NULL;
}

//.........这里部分代码省略.........

	if (!pThis->m_bAbort && pThis->m_FileName.length() > 0) {
		CBindStatCallbackObj *pCallbackObj = NULL;
		HRESULT hr = CBindStatCallbackObj::CreateInstance(&pCallbackObj);
		if (S_OK != hr)
			pCallbackObj = NULL;

		if (pCallbackObj != NULL) {
			pCallbackObj->AddRef();
			pCallbackObj->m_pDoc = pThis;	
		}
		TCHAR name[MAX_PATH] = _T("");
		if (pThis->m_bAsync)
			pThis->PostMessage(MSG_READY_STATE_CHANGE,1);
		
		hr = URLDownloadToCacheFile(NULL,pThis->m_FileName,name,URLOSTRM_GETNEWESTVERSION,0,pCallbackObj);
		if (pCallbackObj != NULL)
			pCallbackObj->Release();

		if (E_ABORT == hr)
			pThis->m_bAbort = true;
		else {	
			if (S_OK != hr) {
				_bstr_t error = _T("Failed to download ") + pThis->m_FileName + _T(": ");
				_com_error comError(hr);
				error += comError.ErrorMessage();
				pThis->m_pParseError->SetData(1,pThis->m_FileName,error,_T(""),0,0,0);
				pThis->m_bParseError = true;
			}
		}

		if (S_OK == hr) {
			pThis->m_FileName = name;
			if (pThis->m_bAsync)
				pThis->PostMessage(MSG_READY_STATE_CHANGE,2);
		}
	}

	XercesDOMParser parser;

	//
	//   If set to true then an node supporting IXMLDOMProcessingInstruction
	//     is added for the XML declaration.
	//
	//   Setting to true in a custom DLL will better mimic
	//      MSXML.DLL but at a cost of conformance errors
	//      using David Brownell's suite
	//parser.setToCreateXMLDeclTypeNode(false);

	parser.setIncludeIgnorableWhitespace(pThis->m_bPreserveWhiteSpace);



	if (!pThis->m_bParseError && !pThis->m_bAbort) {
		parser.setDoValidation(pThis->m_bThreadValidate);
		//
		//   this brings the COM component into better mimicry to MSXML
		//      by not throwing a validation error when there is no DOCTYPE
		//
		parser.setValidationScheme(pThis->m_bThreadValidate ? AbstractDOMParser::Val_Auto : AbstractDOMParser::Val_Never);
	}

	if (!pThis->m_bParseError && !pThis->m_bAbort)
		parser.setErrorHandler(pThis);

	if (!pThis->m_bParseError && !pThis->m_bAbort)
		pThis->m_pParseError->Reset();
	
	if (!pThis->m_bParseError && !pThis->m_bAbort)
		pThis->m_bParseError = false;

	try
	{
		if (!pThis->m_bParseError && !pThis->m_bAbort) {
			if (pThis->m_FileName.length() > 0)
				parser.parse(static_cast<LPCTSTR> (pThis->m_FileName));
			else {
				XMLByte *pXMLByte =  reinterpret_cast<XMLByte*> (static_cast<XMLCh*>(pThis->m_xml));
				MemBufInputSource memBufIS(pXMLByte,pThis->m_xml.length()*sizeof(XMLCh),OLESTR("IBMXMLParser"),false);
				memBufIS.setEncoding(OLESTR("UTF-16LE"));
				if (!pThis->m_bParseError && !pThis->m_bAbort)
					parser.parse(memBufIS);
			}
		}

	}
	catch(...)
	{
		pThis->m_bParseError = true;
		return 0;
	}

	if (!pThis->m_bParseError && !pThis->m_bAbort)
		pThis->m_TmpDocument = parser.adoptDocument();

	if (!pThis->m_bParseError && !pThis->m_bAbort && pThis->m_bAsync)
		pThis->PostMessage(MSG_READY_STATE_CHANGE,4);
  	
	return 0;
}

DOMDocument *
XIncludeUtils::doXIncludeXMLFileDOM(const XMLCh *href,
                                    const XMLCh *relativeHref,
                                    DOMNode *includeNode,
                                    DOMDocument *parsedDocument,
                                    XMLEntityHandler* entityResolver){
    if (XIncludeUtils::isInCurrentInclusionHistoryStack(href)){
         /* including something back up the current history */
         XIncludeUtils::reportError(parsedDocument, XMLErrs::XIncludeCircularInclusionLoop,
              href, href);
         return NULL;
    }

    if (XMLString::equals(href, parsedDocument->getBaseURI())){
        /* trying to include itself */
        XIncludeUtils::reportError(parsedDocument, XMLErrs::XIncludeCircularInclusionDocIncludesSelf,
              href, href);
        return NULL;
    }

    /* Instantiate the DOM parser. */
    XercesDOMParser parser;
    parser.setDoNamespaces(true);
    /* don't want to recurse the xi processing here */
    parser.setDoXInclude(false);
    /* create the schema info nodes, so that we can detect conflicting notations */
    parser.setCreateSchemaInfo(true);
    XMLInternalErrorHandler xierrhandler;
    parser.setErrorHandler(&xierrhandler);

    DOMDocument *includedNode = NULL;
    try {
        InputSource* is=NULL;
        Janitor<InputSource> janIS(is);
        if(entityResolver) {
            XMLResourceIdentifier resIdentifier(XMLResourceIdentifier::ExternalEntity,
                                                relativeHref,
                                                NULL,
                                                NULL,
                                                includeNode->getBaseURI());
            is=entityResolver->resolveEntity(&resIdentifier);
            janIS.reset(is);
        }
        if(janIS.get()!=NULL)
            parser.parse(*janIS.get());
        else
            parser.parse(href);
        /* need to be able to release the parser but keep the document */
        if (!xierrhandler.getSawError() && !xierrhandler.getSawFatal())
            includedNode = parser.adoptDocument();
    }
    catch (const XMLException& /*toCatch*/)
    {
        XIncludeUtils::reportError(parsedDocument, XMLErrs::XIncludeResourceErrorWarning,
              href, href);
    }
    catch (const DOMException& /*toCatch*/)
    {
        XIncludeUtils::reportError(parsedDocument, XMLErrs::XIncludeResourceErrorWarning,
              href, href);
    }
    catch (...)
    {
        XIncludeUtils::reportError(parsedDocument, XMLErrs::XIncludeResourceErrorWarning,
             href, href);
    }

    //addDocumentURIToCurrentInclusionHistoryStack(href);

    if(includedNode != NULL){
        /* baseURI fixups - see http://www.w3.org/TR/xinclude/#base for details. */
        DOMElement *topLevelElement = includedNode->getDocumentElement();
        if (topLevelElement && topLevelElement->getNodeType() == DOMNode::ELEMENT_NODE ){
            XMLUri parentURI(includeNode->getBaseURI());
            XMLUri includedURI(includedNode->getBaseURI());

            /* if the paths differ we need to add a base attribute */
            if (!XMLString::equals(parentURI.getPath(), includedURI.getPath())){
                if (getBaseAttrValue(topLevelElement) == NULL){
                    /* need to calculate the proper path difference to get the relativePath */
                    topLevelElement->setAttribute(fgXIBaseAttrName, relativeHref);
                } else {
                    /* the included node has base of its own which takes precedence */
                    XIncludeLocation xil(getBaseAttrValue(topLevelElement));
                    if (getBaseAttrValue(includeNode) != NULL){
                        /* prepend any specific base modification of the xinclude node */
                        xil.prependPath(getBaseAttrValue(includeNode));
                    }
                    topLevelElement->setAttribute(fgXIBaseAttrName, xil.getLocation());
                }
            }
        }
    }
    return includedNode;
}

//.........这里部分代码省略.........
			errorCount = parser->getErrorCount();
			if (errorCount > 0)
				errorsOccured = true;
		}

		catch (const XMLException& e)
		{
			cerr << "An error occured during parsing\n   Message: "
				 << e.getMessage() << endl;
			errorsOccured = true;
		}


		catch (const DOMException& e)
		{
		   cerr << "A DOM error occured during parsing\n   DOMException code: "
				 << e.code << endl;
			errorsOccured = true;
		}

		if (errorsOccured) {

			cout << "Errors during parse" << endl;
			return (2);

		}

		/*

			Now that we have the parsed file, get the DOM document and start looking at it

		*/
		
		doc = parser->adoptDocument();
	}

	else {
		// Create an empty document
		XMLCh tempStr[100];
		XMLString::transcode("Core", tempStr, 99);    
		DOMImplementation *impl = DOMImplementationRegistry::getDOMImplementation(tempStr);
		doc = impl->createDocument(
			0,                    // root element namespace URI.
			MAKE_UNICODE_STRING("ADoc"),            // root element name
			NULL);// DOMDocumentType());  // document type object (DTD).
	}


	XSECProvider prov;
	XENCCipher * cipher = prov.newCipher(doc);

	if (kek != NULL)
		cipher->setKEK(kek);
	if (key != NULL)
		cipher->setKey(key);

	try {

		if (doDecrypt) {

			if (useInteropResolver == true) {

				// Map out base path of the file
				char path[_MAX_PATH];
				char baseURI[(_MAX_PATH * 2) + 10];
				getcwd(path, _MAX_PATH);

int main(int argc, char** argv)
{

  if(argc != 3){
    cerr << "Usage: " << argv[0] << " file1.xml file2.xml" << endl;
  }

  string filename1 = string(argv[1]);
  string filename2 = string(argv[2]);

  XMLPlatformUtils::Initialize();

  XercesDOMParser * parser = new XercesDOMParser();

  parser->parse(filename1.c_str());
  DOMDocument * doc1 = parser->adoptDocument();

  parser->parse(filename2.c_str());
  DOMDocument * doc2 = parser->adoptDocument();

  XMLCh* tmp = XMLString::transcode("iteration");
  DOMNodeList* list1 = doc1->getElementsByTagName(tmp);
  DOMNodeList* list2 = doc2->getElementsByTagName(tmp);
  XMLString::release(&tmp);

  if(list1->getLength() != list2->getLength()){
    cout << "Different number of iterations: " << list1->getLength() << " vs " <<list2->getLength() << std::endl;
    exit(1);
  }
  
  bool correct = true;

  for(unsigned iter = 0; iter < list1->getLength(); iter++){
    
    bool iter_correct = true;

    DOMElement * it1 = dynamic_cast<DOMElement*>(list1->item(iter));
    DOMElement * it2 = dynamic_cast<DOMElement*>(list2->item(iter));
    
    XMLCh* tmp = XMLString::transcode("etotal");
    DOMElement* child1 = dynamic_cast<DOMElement*>(it1->getElementsByTagName(tmp)->item(0));
    DOMElement* child2 = dynamic_cast<DOMElement*>(it2->getElementsByTagName(tmp)->item(0));
    XMLString::release(&tmp);

    double etotal1 = strtod(XMLString::transcode(child1->getTextContent()), NULL);
    double etotal2 = strtod(XMLString::transcode(child2->getTextContent()), NULL);

    cout << endl;
    
    cout << "Energy 1   = " << scientific << etotal1 << endl;
    cout << "Energy 2   = " << scientific << etotal2 << endl;
    cout << "Difference = " << scientific << fabs(etotal1 - etotal2) << endl;

    if(fabs(etotal1 - etotal2) > energy_tol){
      iter_correct = false;
    }

    correct = correct && iter_correct;

    cout << endl;

    cout << "Iteration\t" << iter << "\t:\t";
    
    if(iter_correct){
      cout << "[   OK   ]" << endl;
    } else {
      cout << "[  FAIL  ]" << endl;
    }

  }

  doc1->release();
  doc2->release();
  
  XMLPlatformUtils::Terminate();

  if(!correct) return 1;
}

int ParameterManager::LoadDocument(const XERCES_CPP_NAMESPACE_QUALIFIER InputSource& inputSource)
{
    //
    //  Create our parser, then attach an error handler to the parser.
    //  The parser will call back to methods of the ErrorHandler if it
    //  discovers errors during the course of parsing the XML document.
    //
    XercesDOMParser *parser = new XercesDOMParser;
    parser->setValidationScheme(gValScheme);
    parser->setDoNamespaces(gDoNamespaces);
    parser->setDoSchema(gDoSchema);
    parser->setValidationSchemaFullChecking(gSchemaFullChecking);
    parser->setCreateEntityReferenceNodes(gDoCreate);

    DOMTreeErrorReporter *errReporter = new DOMTreeErrorReporter();
    parser->setErrorHandler(errReporter);

    //
    //  Parse the XML file, catching any XML exceptions that might propagate
    //  out of it.
    //
    bool errorsOccured = false;
    try {
        parser->parse(inputSource);
    }

    catch (const XMLException& e) {
        std::cerr << "An error occurred during parsing\n   Message: "
        << StrX(e.getMessage()) << std::endl;
        errorsOccured = true;
    }

    catch (const DOMException& e) {
        std::cerr << "A DOM error occurred during parsing\n   DOMException code: "
        << e.code << std::endl;
        errorsOccured = true;
    }

    catch (...) {
        std::cerr << "An error occurred during parsing\n " << std::endl;
        errorsOccured = true;
    }

    if (errorsOccured) {
        delete parser;
        delete errReporter;
        return 0;
    }

    _pDocument = parser->adoptDocument();
    delete parser;
    delete errReporter;

    if (!_pDocument)
        throw XMLBaseException("Malformed Parameter document: Invalid document");

    DOMElement* rootElem = _pDocument->getDocumentElement();
    if (!rootElem)
        throw XMLBaseException("Malformed Parameter document: Root group not found");

    _pGroupNode = FindElement(rootElem,"FCParamGroup","Root");

    if (!_pGroupNode)
        throw XMLBaseException("Malformed Parameter document: Root group not found");

    return 1;
}