/**
* Main routine that utilizes Xercesc module to create a DOM object in memory
* and prints out the resultant DOM structure
* @param argC number of command line args
* @param argV name of command line args
* @return 0 if no errors occurred
*/
int main(int argC, char*argv[]) {
// Initialize the XML4C2 system.
try {
XMLPlatformUtils::Initialize();
} catch (const XMLException& toCatch) {
char *pMsg = XMLString::transcode(toCatch.getMessage());
XERCES_STD_QUALIFIER cerr << "Error during Xerces-c Initialization.\n" << " Exception message:" << pMsg;
XMLString::release(&pMsg);
return 1;
}
// Watch for special case help request
int errorCode = 0;
if (argC > 1) {
XERCES_STD_QUALIFIER
cout << "\nUsage:\n"
" CreateDOMDocument\n\n"
"This program creates a new DOM document from scratch in memory.\n"
"It then prints the count of elements in the tree.\n" << XERCES_STD_QUALIFIER
endl;
errorCode = 1;
}
if (errorCode) {
XMLPlatformUtils::Terminate();
return errorCode;
}
DOMImplementation* impl = DOMImplementationRegistry::getDOMImplementation(X("Core"));
if (impl != NULL) {
try {
// create a DomDocument instance
DOMDocument* doc = impl->createDocument(
0, // root element namespace URI.
X("TheHood"), // root element name
0); // document type object (DTD).
// create root attribute nodes
DOMAttr* woop_atr = doc->createAttribute(X("WOOP"));
woop_atr->setValue(X("DANG"));
DOMAttr* fiyah_atr = doc->createAttribute(X("FIYAH"));
fiyah_atr->setValue(X("hot"));
DOMAttr* hungry_atr = doc->createAttribute(X("hungry"));
hungry_atr->setValue(X("starving"));
// create root element
DOMElement* rootElem = doc->getDocumentElement();
// set root attrs
rootElem->setAttributeNode(woop_atr);
rootElem->setAttributeNode(fiyah_atr);
rootElem->setAttributeNode(hungry_atr);
//create root child elements
DOMElement* gangElem = doc->createElement(X("gang"));
rootElem->appendChild(gangElem);
DOMText* gangDataVal = doc->createTextNode(X("YoungThugz"));
gangElem->appendChild(gangDataVal);
gangElem->setAttribute(X("hardness"), X("rock"));
//create gang attr nodes
DOMAttr* members_atr = doc->createAttribute(X("members"));
members_atr->setValue(X("500"));
DOMAttr* color_atr = doc->createAttribute(X("color"));
color_atr->setValue(X("magenta"));
// set gang attr
gangElem->setAttributeNode(members_atr);
gangElem->setAttributeNode(color_atr);
// create gang elem children
DOMElement* piruElem = doc->createElement(X("piru"));
piruElem->setNodeValue(X("w"));
DOMElement* cripElem = doc->createElement(X("crip"));
cripElem->setNodeValue(X("t"));
DOMElement* trgElem = doc->createElement(X("trg"));
trgElem->setNodeValue(X("o"));
// append gang elem children
gangElem->appendChild(piruElem);
gangElem->appendChild(cripElem);
gangElem->appendChild(trgElem);
DOMElement* turfElem = doc->createElement(X("turf"));
rootElem->appendChild(turfElem);
turfElem->setAttribute(X("idea"), X("great"));
DOMText* turfDataVal = doc->createTextNode(X("West Side Projects"));
turfElem->appendChild(turfDataVal);
DOMElement* cliqueElem = doc->createElement(X("clique"));
rootElem->appendChild(cliqueElem);
DOMText* cliqueDataVal = doc->createTextNode(X("Balla$"));
cliqueElem->appendChild(cliqueDataVal);
cliqueElem->setAttribute(X("Comradery"), X("tight"));
DOMElement* sideElem = doc->createElement(X("side"));
rootElem->appendChild(sideElem);
DOMText* sideDataVal = doc->createTextNode(X("North North"));
sideElem->appendChild(sideDataVal);
// create side elem children
DOMElement* tempElem = doc->createElement(X("temperature"));
tempElem->setNodeValue(X("100 C"));
DOMElement* med_incomeElem = doc->createElement(X("medianIncome"));
med_incomeElem->setNodeValue(X("$20,000"));
DOMElement* schoolsElem = doc->createElement(X("schools"));
schoolsElem->setNodeValue(X("Regional"));
// append side elem children
sideElem->appendChild(tempElem);
sideElem->appendChild(med_incomeElem);
sideElem->appendChild(schoolsElem);
DOMElement* gatElem = doc->createElement(X("gat"));
rootElem->appendChild(gatElem);
DOMText* gatDataVal = doc->createTextNode(X("Glock"));
gatElem->appendChild(gatDataVal);
//set gat attr
gatElem->setAttribute(X("caliber"), X(".50"));
// create gat elem children
DOMElement* rifleElem = doc->createElement(X("rifle"));
DOMElement* meleeElem = doc->createElement(X("melee"));
DOMElement* pieceElem = doc->createElement(X("piece"));
// append gat elem children
gatElem->appendChild(rifleElem);
gatElem->appendChild(meleeElem);
gatElem->appendChild(pieceElem);
DOMElement* contraElem = doc->createElement(X("contra"));
rootElem->appendChild(contraElem);
DOMText* contraDataVal = doc->createTextNode(X("Cocoa"));
contraElem->appendChild(contraDataVal);
contraElem->setAttribute(X("rareness"), X("extreme"));
// create contra elem children
DOMElement* methElem = doc->createElement(X("meth"));
DOMElement* ganjaElem = doc->createElement(X("ganja"));
DOMElement* ethElem = doc->createElement(X("ethanol"));
// append contra elem children
contraElem->appendChild(methElem);
contraElem->appendChild(ganjaElem);
contraElem->appendChild(ethElem);
//create contra attr nodes
DOMAttr* price_atr = doc->createAttribute(X("price"));
price_atr->setValue(X("$25"));
DOMAttr* source_atr = doc->createAttribute(X("source"));
source_atr->setValue(X("Columbia"));
// set contra attr
contraElem->setAttributeNode(price_atr);
contraElem->setAttributeNode(source_atr);
DOMElement* rivalsElem = doc->createElement(X("rivals"));
rootElem->appendChild(rivalsElem);
DOMText* rivalsDataVal = doc->createTextNode(X("Warrriors"));
rivalsElem->appendChild(rivalsDataVal);
DOMElement* policeElem = doc->createElement(X("police"));
rootElem->appendChild(policeElem);
DOMText* policeDataVal = doc->createTextNode(X("popo"));
policeElem->appendChild(policeDataVal);
DOMElement* drugsElem = doc->createElement(X("drugs"));
rootElem->appendChild(drugsElem);
DOMText* drugsDataVal = doc->createTextNode(X("codiene"));
drugsElem->appendChild(drugsDataVal);
// create drugs elem children
DOMElement* mixElem = doc->createElement(X("mix"));
DOMElement* spriteElem = doc->createElement(X("sprite"));
DOMElement* leanElem = doc->createElement(X("lean"));
// append drugs elem children
drugsElem->appendChild(mixElem);
drugsElem->appendChild(spriteElem);
drugsElem->appendChild(leanElem);
DOMElement* crimeElem = doc->createElement(X("crime"));
rootElem->appendChild(crimeElem);
DOMText* crimeDataVal = doc->createTextNode(X("187"));
crimeElem->appendChild(crimeDataVal);
//
// Now count the number of elements in the above DOM tree.
//
const XMLSize_t elementCount = doc->getElementsByTagName(X("*"))->getLength();
XERCES_STD_QUALIFIER cout << "The tree just created contains: " << elementCount
<< " elements." << XERCES_STD_QUALIFIER endl;
// create serializer instance
DOMLSSerializer *theSerializer = ((DOMImplementationLS*) impl)->createLSSerializer();
// create output instance
DOMLSOutput *theOutputDesc = ((DOMImplementationLS*) impl)->createLSOutput();
// referenced the following http://stackoverflow.com/questions/2897317/writing-xml-with-xerces-3-0-1-and-c-on-windows
// set output from serializer to stdout
XMLFormatTarget *myFormTarget;
myFormTarget = new StdOutFormatTarget();
theOutputDesc->setByteStream(myFormTarget);
// Make the output more human readable by inserting line feeds.
if (theSerializer->getDomConfig()->canSetParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true))
theSerializer->getDomConfig()->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true);
// The end-of-line sequence of characters to be used in the XML being written out.
theSerializer->setNewLine(XMLString::transcode("\r\n"));
// output the DOM
theSerializer->write(doc, theOutputDesc);
cout << endl << endl << "*****************************************" << endl;
// Using DOMTreeWalker class to traverse tree
// create tree walker
DOMTreeWalker* walker = doc->createTreeWalker(rootElem,
DOMNodeFilter::SHOW_ELEMENT,
NULL,
true);
// create vector to hold Dom nodes
vector<DOMNode*> elem_vec;
// traverse tree using walker
for (DOMNode* current = walker->nextNode(); current != 0; current = walker->nextNode()) {
// store nodes int vector
elem_vec.push_back(current);
}
// sort function - alphabetically elements
std::sort(elem_vec.begin(), elem_vec.end(), compare_elem_alpha);
// iterate through sorted nodes
for (auto i : elem_vec) {
int x;
string text = string(x(i->getTextContent()));
cout << "Node Name: " << x(i->getNodeName()) << ((text != "") ? " |Text Content: " + text : "") << endl;
//get attr map
if (i->hasAttributes()) {
DOMNamedNodeMap *attr_map = i->getAttributes();
// get each node in the map
for (x = 0; x < attr_map->getLength(); x++) {
DOMNode *temp = attr_map->item(x);
cout << setw(5) << "" << "Attribute" << x + 1 << ": " << x(temp->getNodeName()) << " = "
<< x(temp->getNodeValue()) << endl;
}
}
}
// release doc resources
doc->release();
} catch (const OutOfMemoryException&) {
XERCES_STD_QUALIFIER cerr << "OutOfMemoryException" << XERCES_STD_QUALIFIER endl;
errorCode = 5;
} catch (const DOMException& e) {
XERCES_STD_QUALIFIER cerr << "DOMException code is: " << e.code << XERCES_STD_QUALIFIER endl;
errorCode = 2;
} catch (...) {
XERCES_STD_QUALIFIER cerr << "An error occurred creating the document" << XERCES_STD_QUALIFIER endl;
errorCode = 3;
}
}// (impl != NULL)
else {
XERCES_STD_QUALIFIER cerr << "Requested implementation is not supported" << XERCES_STD_QUALIFIER endl;
errorCode = 4;
}
}
