XMLGeometryReader.cc

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#include "FWCore/Framework/interface/one/EDAnalyzer.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/ServiceRegistry/interface/Service.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "CondFormats/Common/interface/FileBlob.h"
#include "Geometry/Records/interface/GeometryFileRcd.h"

#include <string>
#include <vector>
#include <fstream>

class XMLGeometryReader : public edm::one::EDAnalyzer<edm::one::WatchRuns>
{
public:
  
  XMLGeometryReader( const edm::ParameterSet& );

  void beginJob() override {}
  void beginRun(edm::Run const& iEvent, edm::EventSetup const&) override;
  void analyze(edm::Event const& iEvent, edm::EventSetup const&) override {}
  void endRun(edm::Run const& iEvent, edm::EventSetup const&) override {}

private:
  std::string m_fname;
  std::string m_label;
};

XMLGeometryReader::XMLGeometryReader(const edm::ParameterSet& iConfig)
{
  m_fname = iConfig.getUntrackedParameter<std::string>("XMLFileName","test.xml");
  m_label = iConfig.getUntrackedParameter<std::string>("geomLabel","Extended");
}

void
XMLGeometryReader::beginRun(edm::Run const& run , edm::EventSetup const& iSetup)
{
  edm::LogInfo("XMLGeometryReader") << "XMLGeometryReader::beginRun";

  edm::ESHandle<FileBlob> geometry;
  iSetup.get<GeometryFileRcd>().get(m_label,geometry);
  std::unique_ptr<std::vector<unsigned char> > blob( (*geometry).getUncompressedBlob() );

  std::string outfile1(m_fname) ;
  std::ofstream output1(outfile1.c_str()) ;
  output1.write((const char *)&(*blob)[0], blob->size());
  output1.close() ;
}
  
DEFINE_FWK_MODULE(XMLGeometryReader);