G4CsvHnRFileManager.icc

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// Author: Ivana Hrivnacova, 26/08/2021 (ivana@ipno.in2p3.fr)
 
#include "G4AnalysisUtilities.hh"
 
#include "tools/rcsv_histo"
 
//_____________________________________________________________________________
template <typename HT>
inline
G4String G4CsvHnRFileManager<HT>::GetHnFileName(
  const G4String& hnType, const G4String& hnName,
  const G4String& fileName, G4bool isUserFileName) const
{
  if ( isUserFileName ) {
    return fRFileManager->GetFullFileName(fileName);
  }
  else {
    return fRFileManager->GetHnFileName(hnType, hnName);
  }
}
 
//_____________________________________________________________________________
template <typename HT>
inline
HT*  G4CsvHnRFileManager<HT>::ReadT(
  std::istream& htFile, const G4String& fileName, std::string_view inFunction)
{
  tools::rcsv::histo handler(htFile);
  std::string objectTypeInFile;
  void* object;
  auto verbose = false;
  if ( ! handler.read(G4cout, objectTypeInFile, object, verbose) ) {
    G4Analysis::Warn(
      "Cannot get " + G4Analysis::GetHnType<HT>() + " in file " + fileName,
      fkClass, inFunction);
    return nullptr;
  }
  if ( objectTypeInFile.compare(HT::s_class()) != 0 ) {
    G4Analysis::Warn(
      "Object type read in " + G4Analysis::GetHnType<HT>() +" does not match",
      fkClass, inFunction);
    return nullptr;
  }
 
  return static_cast<HT*>(object);
}
 
//_____________________________________________________________________________
template <typename HT>
inline
HT* G4CsvHnRFileManager<HT>::Read(
  const G4String& htName, const G4String& fileName, const G4String& dirName,
  G4bool isUserFileName)
{
  // Get file name
  auto htFileName =
    GetHnFileName(G4Analysis::GetHnType<HT>(), htName, fileName, isUserFileName);
 
  // Update directory path
  if ( ! dirName.empty() ) {
    htFileName = "./" + dirName + "/" + htFileName;
  }
 
  std::ifstream htFile(htFileName);
  if ( ! htFile.is_open() ) {
    G4Analysis::Warn("Cannot open file " + htFileName, fkClass, "Read");
    return nullptr;
  }
 
  auto ht = ReadT(htFile, htFileName, "Read");
  return ht;
}