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#include <iostream>
#include <sstream>
#include <fstream>
#include <xercesc/dom/DOMNode.hpp>
#include <xercesc/dom/DOM.hpp>
#include <xercesc/parsers/XercesDOMParser.hpp>
#include "Utilities/Xerces/interface/Xerces.h"
#include "Utilities/Xerces/interface/XercesStrUtils.h"
#include <xercesc/util/XMLString.hpp>
#include <xercesc/sax/SAXException.hpp>
#include <xercesc/framework/LocalFileFormatTarget.hpp>

#include "CondFormats/EcalObjects/interface/EcalTimeBiasCorrections.h"
#include "CondTools/Ecal/interface/EcalTimeBiasCorrectionsXMLTranslator.h"
#include "CondTools/Ecal/interface/DOMHelperFunctions.h"

using namespace XERCES_CPP_NAMESPACE;
using namespace xuti;
using namespace std;

int EcalTimeBiasCorrectionsXMLTranslator::readXML(const std::string& filename,
                                                  EcalCondHeader& header,
                                                  EcalTimeBiasCorrections& record) {
  cms::concurrency::xercesInitialize();

  XercesDOMParser* parser = new XercesDOMParser;
  parser->setValidationScheme(XercesDOMParser::Val_Never);
  parser->setDoNamespaces(false);
  parser->setDoSchema(false);

  parser->parse(filename.c_str());

  DOMDocument* xmlDoc = parser->getDocument();
  if (!xmlDoc) {
    std::cout << "EcalTimeBiasCorrectionsXMLTranslator::Error parsing document" << std::endl;
    return -1;
  }

  // Get the top-level element
  DOMElement* elementRoot = xmlDoc->getDocumentElement();

  xuti::readHeader(elementRoot, header);

  delete parser;
  cms::concurrency::xercesTerminate();
  return 0;
}

int EcalTimeBiasCorrectionsXMLTranslator::writeXML(const std::string& filename,
                                                   const EcalCondHeader& header,
                                                   const EcalTimeBiasCorrections& record) {
  cms::concurrency::xercesInitialize();

  std::fstream fs(filename.c_str(), ios::out);
  fs << dumpXML(header, record);

  cms::concurrency::xercesTerminate();

  return 0;
}

std::string EcalTimeBiasCorrectionsXMLTranslator::dumpXML(const EcalCondHeader& header,
                                                          const EcalTimeBiasCorrections& record) {
  unique_ptr<DOMImplementation> impl(DOMImplementationRegistry::getDOMImplementation(cms::xerces::uStr("LS").ptr()));

  DOMLSSerializer* writer = impl->createLSSerializer();
  if (writer->getDomConfig()->canSetParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true))
    writer->getDomConfig()->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true);

  DOMDocumentType* doctype = impl->createDocumentType(cms::xerces::uStr("XML").ptr(), nullptr, nullptr);
  DOMDocument* doc = impl->createDocument(nullptr, cms::xerces::uStr(IntercalibConstants_tag.c_str()).ptr(), doctype);
  DOMElement* root = doc->getDocumentElement();

  xuti::writeHeader(root, header);

  std::vector<float> vect = record.EBTimeCorrAmplitudeBins;
  std::vector<float>::iterator it;

  std::string ETCAB_tag = "EBTimeCorrAmplitudeBins";
  //  std::cout << ETCAB_tag << vect.size()<< "\n";
  DOMElement* ETCAB = root->getOwnerDocument()->createElement(cms::xerces::uStr(ETCAB_tag.c_str()).ptr());
  root->appendChild(ETCAB);
  for (it = vect.begin(); it != vect.end(); it++) {
    //    std::cout << *it << " ";
    WriteNodeWithValue(ETCAB, Value_tag, *it);
  }
  //  std::cout << "\n";
  vect = record.EBTimeCorrShiftBins;
  ETCAB_tag = "EBTimeCorrShiftBins";
  //  std::cout << ETCAB_tag << vect.size()<< "\n";
  ETCAB = root->getOwnerDocument()->createElement(cms::xerces::uStr(ETCAB_tag.c_str()).ptr());
  root->appendChild(ETCAB);
  for (it = vect.begin(); it != vect.end(); it++) {
    //    std::cout << *it << " ";
    WriteNodeWithValue(ETCAB, Value_tag, *it);
  }
  //  std::cout << "\n";
  vect = record.EETimeCorrAmplitudeBins;
  ETCAB_tag = "EETimeCorrAmplitudeBins";
  //  std::cout << ETCAB_tag << vect.size()<< "\n";
  ETCAB = root->getOwnerDocument()->createElement(cms::xerces::uStr(ETCAB_tag.c_str()).ptr());
  root->appendChild(ETCAB);
  for (it = vect.begin(); it != vect.end(); it++) {
    //    std::cout << *it << " ";
    WriteNodeWithValue(ETCAB, Value_tag, *it);
  }
  //  std::cout << "\n";
  vect = record.EETimeCorrShiftBins;
  ETCAB_tag = "EETimeCorrShiftBins";
  //  std::cout << ETCAB_tag << vect.size()<< "\n";
  ETCAB = root->getOwnerDocument()->createElement(cms::xerces::uStr(ETCAB_tag.c_str()).ptr());
  root->appendChild(ETCAB);
  for (it = vect.begin(); it != vect.end(); it++) {
    //    std::cout << *it << " ";
    WriteNodeWithValue(ETCAB, Value_tag, *it);
  }
  //  std::cout << "\n";

  std::string dump = cms::xerces::toString(writer->writeToString(root));
  doc->release();
  doctype->release();
  writer->release();

  return dump;
}