C++ DOMLSOutput::setByteStream方法代码示例

//
// domPrint  -  Dump the contents of a DOM node.
//              For debugging failures, when all else fails.
//                 Works recursively - initially called with a document node.
//
void ThreadParser::domPrint()
{
    printf("Begin DOMPrint ...\n");
    if (gRunInfo.dom)
    {
        try
        {
            XMLCh tempStr[100];
            XMLString::transcode("LS", tempStr, 99);
            DOMImplementation *impl          = DOMImplementationRegistry::getDOMImplementation(tempStr);
            DOMLSSerializer   *theSerializer = ((DOMImplementationLS*)impl)->createLSSerializer();
            DOMLSOutput       *theOutput     = ((DOMImplementationLS*)impl)->createLSOutput();
            XMLFormatTarget   *myFormTarget  = new StdOutFormatTarget();
            theOutput->setByteStream(myFormTarget);
            DOMNode           *doc           = fXercesDOMParser->getDocument();
            theSerializer->write(doc,theOutput);
            delete myFormTarget;
            theSerializer->release();
            theOutput->release();
        }
        catch (...)
        {
            // do nothing
        }
    }
    printf("End DOMPrint\n");
}

CStdString DomSerializer::DomNodeToString(DOMNode* node)
{
	CStdString output;

    DOMImplementation *impl          = DOMImplementationRegistry::getDOMImplementation(XStr("LS").unicodeForm());
    DOMLSSerializer   *theSerializer = ((DOMImplementationLS*)impl)->createLSSerializer();
		DOMConfiguration	* dc 					 = theSerializer->getDomConfig();
    // set user specified output encoding
    //dc->setEncoding(gOutputEncoding);
		dc->setParameter(XStr("format-pretty-print").unicodeForm(), true);

    XMLFormatTarget *myFormTarget;
		myFormTarget = new MemBufFormatTarget ();

		DOMLSOutput *outputStream = ((DOMImplementationLS*)impl)->createLSOutput();
		outputStream->setByteStream(myFormTarget);

    theSerializer->write(node, outputStream);

		output = (char *)((MemBufFormatTarget*)myFormTarget)->getRawBuffer();

	// Clean up
    delete theSerializer;
    //
    // Filter, formatTarget and error handler
    // are NOT owned by the serializer.
    delete myFormTarget;

	return output;
}

void serializer::serialize(EObject_ptr obj)
{
    m_root_obj = obj;

    m_impl = DOMImplementationRegistry::getDOMImplementation(X("Core"));

    if (m_impl)
    {
        EClass_ptr cl = obj->eClass();
        EPackage_ptr pkg = cl->getEPackage();

        ::ecorecpp::mapping::type_traits::string_t const& ns_uri = pkg->getNsURI();

        m_doc = m_impl->createDocument(
                (ns_uri.empty()) ? X("NULL") : W(ns_uri), // root element namespace URI.
                W(get_type(obj)), // root element name
                0); // document type object (DTD)

        m_root = m_doc->getDocumentElement();

        // common attributes
        // xmlns:xmi="http://www.omg.org/XMI"
        m_root->setAttribute(X("xmlns:xmi"), X("http://www.omg.org/XMI"));
        // xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        m_root->setAttribute(X("xmlns:xsi"),
                X("http://www.w3.org/2001/XMLSchema-instance"));
        // xmi:version="2.0"
        m_root->setAttribute(X("xmi:version"), X("2.0"));

        serialize_node(m_root, obj);

        // write
        // TODO: outta here

        DOMLSSerializer *theSerializer =
                ((DOMImplementationLS*) m_impl)->createLSSerializer();
        DOMLSOutput *theOutputDesc =
                ((DOMImplementationLS*) m_impl)->createLSOutput();

        DOMConfiguration* serializerConfig = theSerializer->getDomConfig();

        // TODO: set as option
        if (serializerConfig->canSetParameter(
                XMLUni::fgDOMWRTFormatPrettyPrint, true))
            serializerConfig->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint,
                    true);

        XMLFormatTarget *myFormTarget;
        myFormTarget = new LocalFileFormatTarget(X(m_file));
        theOutputDesc->setByteStream(myFormTarget);

        theSerializer->write(m_doc, theOutputDesc);

        theOutputDesc->release();
        theSerializer->release();
        delete myFormTarget;
    }
    else
        throw "Error";
}

/* Write the file. */
bool GQCFileData::Write(const std::string &fileName)
{    
	// Initialize the XML4C2 system.
	try
	{
		XMLPlatformUtils::Initialize();
	}
	catch (const XMLException&)
	{
		return false;
	}

	// Create a DOM implementation object and create the document type for it.
	DOMImplementation *impl = DOMImplementationRegistry::getDOMImplementation(ToXMLCh(L"LS"));
	DOMDocument* doc = impl->createDocument();
	//doc->setStandalone(true);

	// Create the serializer.
	DOMLSSerializer *theSerializer = ((DOMImplementationLS*)impl)->createLSSerializer();
	DOMLSOutput     *theOutputDesc = ((DOMImplementationLS*)impl)->createLSOutput();
	//theSerializer->setEncoding(ToXMLCh(GENERIC_REPORT_FILE_ENCODING));
	theOutputDesc->setEncoding(ToXMLCh(GENERIC_REPORT_FILE_ENCODING));

    // Create the root element
    DOMElement *rootElement = CreateGenericReportElement(doc);

	// store the parameters
	AddNameValuePairs(ANALYSIS_PARAMETERS, analysisParameters, doc, rootElement);
	AddNameValuePairs(QC_RESULTS, qcResults, doc, rootElement);
	AddNameValuePairs(SAMPLE_SIGNATURE, sampleSignature, doc, rootElement);

    // Add an empty table (required by the DTD)
    AddBlankReportTable(doc, rootElement);

    // Store the element to the document.
    doc->appendChild(rootElement);

	// Write the file.
	bool status = false;
	XMLFormatTarget *myFormTarget = new LocalFileFormatTarget(fileName.c_str());
	theOutputDesc->setByteStream(myFormTarget);
	try
	{
		theSerializer->write(doc, theOutputDesc);
		status = true;
	}
	catch (...)
	{
		status = false;
	}

	// Clean up
	doc->release();
	theOutputDesc->release();
	theSerializer->release();
	delete myFormTarget;
	XMLPlatformUtils::Terminate();

	return status;
}

void EntityXMLFileWriter::WriteEntity(World* world, EntityID entity)
{
    using namespace xercesc;
    DOMDocument* doc = m_DOMImplementation->createDocument(nullptr, X("Entity"), nullptr);
    DOMElement* root = doc->getDocumentElement();
    root->setAttribute(X("xmlns:xsi"), X("http://www.w3.org/2001/XMLSchema-instance"));
    root->setAttribute(X("xsi:noNamespaceSchemaLocation"), X("../Types/Entity.xsd"));
    root->setAttribute(X("xmlns:c"), X("components"));
    const std::string& name = world->GetName(entity);
    if (!name.empty()) {
        root->setAttribute(X("name"), X(name));
    }
    
    DOMElement* componentsElement = doc->createElement(X("Components"));
    root->appendChild(componentsElement);
    appentEntityComponents(componentsElement, world, entity);

    DOMElement* childrenElement = doc->createElement(X("Children"));
    root->appendChild(childrenElement);
    appendEntityChildren(childrenElement, world, entity);

    try {
        LocalFileFormatTarget* target = new LocalFileFormatTarget(X(m_FilePath.string()));
        DOMLSOutput* output = static_cast<DOMImplementationLS*>(m_DOMImplementation)->createLSOutput();
        output->setByteStream(target);
        m_DOMLSSerializer->write(doc, output);
        delete target;
    } catch (const std::runtime_error& e) {
        LOG_ERROR("Failed to save \"%s\": %s", m_FilePath.c_str(), e.what());
    }

    doc->release();
}

void SerializeXercesDocument(xercesc::DOMDocument& document, xercesc::XMLFormatTarget& target) {

	// call into xerces for serialization
	// cf. http://xerces.apache.org/xerces-c/program-dom-3.html#DOMLSSerializer

	static const XMLCh gLS[] = { chLatin_L, chLatin_S, chNull };
	DOMImplementation *impl = DOMImplementationRegistry::getDOMImplementation(gLS);

	// construct the DOMWriter
	DOMLSSerializer *writer = ((DOMImplementationLS*)impl)->createLSSerializer();

    // optionally you can set some features on this serializer
    if (writer->getDomConfig()->canSetParameter(XMLUni::fgDOMWRTDiscardDefaultContent, true))
        writer->getDomConfig()->setParameter(XMLUni::fgDOMWRTDiscardDefaultContent, true);

    if (writer->getDomConfig()->canSetParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true))
            writer->getDomConfig()->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true);

	// prepare output
	DOMLSOutput *outp = ((DOMImplementationLS*)impl)->createLSOutput();
	outp->setByteStream(&target);

	// serialize the DOMNode to a UTF-16 string
	writer->write(&document, outp);

	// release the memory
	outp->release();
	writer->release();

}

static void
serialise (DOMDocument const *doc, std::string const &output)
{
  XMLCh const LS[] = { chLatin_L, chLatin_S, chNull };

  DOMImplementationLS &impl = dynamic_cast<DOMImplementationLS &> (*DOMImplementationRegistry::getDOMImplementation (LS));
  DOMLSSerializer *writer = impl.createLSSerializer ();
  DOMLSOutput *desc = impl.createLSOutput ();

  LocalFileFormatTarget target (output.c_str ());
  desc->setByteStream (&target);

  writer->write (doc, desc);
}

    bool serializeDOM(std::ostream& output, bool)
    {
	XMLCh tempStr[100];
	XMLString::transcode("LS", tempStr, 99);
	DOMImplementationLS *impl = dynamic_cast<DOMImplementationLS *>(DOMImplementationRegistry::getDOMImplementation(tempStr));
	DOMLSSerializer   *theSerializer = impl->createLSSerializer();
	DOMLSOutput       *theOutputDesc = impl->createLSOutput();

	bool rc = false;

	try
	{
	    MemBufFormatTarget *myFormTarget = new MemBufFormatTarget();

	    /* do the serialization through DOMLSSerializer::write(); */

	    theOutputDesc->setByteStream(myFormTarget);
	    theSerializer->write(inputFileDOM, theOutputDesc);

	    const XMLByte * data = myFormTarget->getRawBuffer();
	    XMLSize_t len = myFormTarget->getLen();

	    output.write( reinterpret_cast<const char *>(data), len );

	    delete myFormTarget;
	    rc = true;
	}
	catch (IOException& e ) {
	    cerr << StrX(e.getMessage());
	    cerr << "  Code is " << e.getCode();

	    if ( errno != 0 ) {
		cerr << ": " << strerror( errno );
	    }
	}
	catch (XMLException& e)
	{
	    cerr << "An error occurred during creation of output transcoder. Msg is:"
		 << endl
		 << StrX(e.getMessage());
	    if ( errno != 0 ) {
		cerr << ": " << strerror( errno );
	    }
	    cerr << endl;
	    rc = false;
	}
	delete theSerializer;
	return rc;
    }

int ModelicaXML::serializeXMLDocumentToFile(mstring xmlFileName)
{
  // fix the file
  XMLFormatTarget *myFormatTarget = new LocalFileFormatTarget(X(xmlFileName.c_str()));
  theOutputDesc->setByteStream(myFormatTarget);

  // serialize a DOMNode to the local file "
  domSerializer->write(pModelicaXMLDoc, theOutputDesc);

  myFormatTarget->flush();

  delete myFormatTarget;

  return 0;
}

 /// Dump DOM tree using XercesC handles
 void dumpTree(DOMNode* doc, ostream& os) {
   if ( doc )  {
     DOMImplementation  *imp = DOMImplementationRegistry::getDOMImplementation(Strng_t("LS"));
     MemBufFormatTarget *tar = new MemBufFormatTarget();
     DOMLSOutput        *out = imp->createLSOutput();
     DOMLSSerializer    *wrt = imp->createLSSerializer();
     out->setByteStream(tar);
     wrt->getDomConfig()->setParameter(Strng_t("format-pretty-print"), true);
     wrt->write(doc, out);
     os << tar->getRawBuffer() << endl << flush;
     out->release();
     wrt->release();
     return;
   }
   printout(ERROR,"dumpTree","+++ Cannot dump invalid document.");
 }

void Normalizer::serializeNode(const DOMNode * const node) {
    XMLCh tempStr[100];
    XMLString::transcode("LS", tempStr, 99);
    DOMImplementation *impl          = DOMImplementationRegistry::getDOMImplementation(tempStr);
    DOMLSSerializer   *theSerializer = ((DOMImplementationLS*)impl)->createLSSerializer();
    DOMLSOutput       *theOutput     = ((DOMImplementationLS*)impl)->createLSOutput();
    theSerializer->getDomConfig()->setParameter(X("format-pretty-print"), true);
    XMLFormatTarget *myFormTarget;
    myFormTarget = new StdOutFormatTarget();

    theOutput->setByteStream(myFormTarget);
    theSerializer->write(node,theOutput);
    delete myFormTarget;
    theSerializer->release();
    theOutput->release();
}

Triggerconf::~Triggerconf ()
{
	if( savechanges ){
	
		//
		// save file
		//
	
		static const XMLCh	gLS []	= {chLatin_L, chLatin_S, chNull};
		DOMImplementation*	impl	= DOMImplementationRegistry::getDOMImplementation(gLS);
		DOMLSSerializer*	writer	= ((DOMImplementationLS*)impl)->createLSSerializer();
	
		if (writer->getDomConfig()->canSetParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true))
			writer->getDomConfig()->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true);
	
		if (writer->getDomConfig()->canSetParameter(XMLUni::fgDOMWRTBOM, true))
			writer->getDomConfig()->setParameter(XMLUni::fgDOMWRTBOM, true);
	
		XMLFormatTarget* target	= new LocalFileFormatTarget (file.c_str ());
		target->flush();
	
		DOMLSOutput* output = ((DOMImplementationLS*)impl)->createLSOutput();
		output->setByteStream( target );
		writer->write( rootnode , output );
		
		writer->release();
		delete target;
		delete output;

	} // if( savechanges )

	//
	// delete all stuff here
	//

	delete parser;
	delete errhandler;

	//
	// now we can safely terminate xerces
	//

	XMLPlatformUtils::Terminate();
}

int XmlParser::commit(const char* xmlFile) {
   try {
      // Obtain DOM implementation supporting Load/Save
      DOMImplementationLS* pImplementation = dynamic_cast<DOMImplementationLS *>(DOMImplementationRegistry::getDOMImplementation(DualString("LS").asXMLString()));
      if (pImplementation == NULL){
         throw( std::runtime_error( "Unable to obtain suitable DOMImplementation!" ) ) ;
      }

      DOMLSSerializer *pSerializer = pImplementation->createLSSerializer();

      DOMLSOutput *pOutput = pImplementation->createLSOutput();
#if 1
      // Change output format to be pretty (but it isn't)
      DOMConfiguration *pConfiguration = pSerializer->getDomConfig();
      if (pConfiguration->canSetParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true))
         pConfiguration->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true);
#if 0
      // Overrides above but seems to have little effect!
      if (pConfiguration->canSetParameter(XMLUni::fgDOMWRTCanonicalForm, true))
         pConfiguration->setParameter(XMLUni::fgDOMWRTCanonicalForm, true);
#endif
#if 1
      //
      if (pConfiguration->canSetParameter(XMLUni::fgDOMWRTEntities, true))
         pConfiguration->setParameter(XMLUni::fgDOMWRTEntities, true);
#endif
#endif
      LocalFileFormatTarget *pTarget = new LocalFileFormatTarget(DualString( xmlFile ).asXMLString());
      pOutput->setByteStream(pTarget);

//      mergeDocument->normalizeDocument(); // Needed?
      pSerializer->write(mergeDocument, pOutput);

      delete pTarget;
      pOutput->release();
      pSerializer->release();

   } catch( const xercesc::XMLException& e ){
      return -1;
   }

   return 0;
}

void PrintXMLdoc(const XERCES_CPP_NAMESPACE::DOMDocument* doc)
{
	DOMImplementation* impl =  DOMImplementationRegistry::getDOMImplementation(L"Core");
	DOMLSSerializer   *theSerializer = ((DOMImplementationLS*)impl)->createLSSerializer();
    DOMLSOutput       *theOutputDesc = ((DOMImplementationLS*)impl)->createLSOutput();
	
	DOMConfiguration* serializerConfig=theSerializer->getDomConfig();
	if (serializerConfig->canSetParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true))
		serializerConfig->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true);

	XMLFormatTarget *outputStream = new StdOutFormatTarget();
	theOutputDesc->setByteStream(outputStream);

	theSerializer->write(doc, theOutputDesc);

    theOutputDesc->release();
    theSerializer->release();

	delete outputStream;
}

bool XMLIO::Write (DOMImplementation* impl, DOMNode* node, string filename) {

	XMLFormatTarget* mft;

	if (filename.empty())
		mft = new StdOutFormatTarget();
	else
		mft = new LocalFileFormatTarget (StrX(filename).XMLchar());

	// Xerces 2
    #ifdef XSEC_XERCES_HAS_SETIDATTRIBUTE
	DOMWriter* serializer = ((DOMImplementationLS*)impl)->createDOMWriter();

    if (serializer->canSetFeature(XMLUni::fgDOMWRTFormatPrettyPrint, true))
		serializer->setFeature(XMLUni::fgDOMWRTFormatPrettyPrint, true);
	
	serializer->writeNode(mft, *node);

	serializer->release();
    #endif 

    #ifdef XSEC_XERCES_HAS_BOOLSETIDATTRIBUTE
	DOMLSSerializer*   serializer    = ((DOMImplementationLS*) impl)->createLSSerializer();
	DOMLSOutput*       output        = ((DOMImplementationLS*)impl)->createLSOutput(); 
    DOMConfiguration*  configuration = serializer->getDomConfig(); 

	if (configuration->canSetParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true))
		configuration->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true); 

	output->setByteStream (mft);
	serializer->write(node, output);

	output->release();
	serializer->release(); 
    #endif

	return true;

}