NtpMCTreeHeader.cxx

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//____________________________________________________________________________
/*
 Copyright (c) 2003-2020, The GENIE Collaboration
 For the full text of the license visit http://copyright.genie-mc.org

 Costas Andreopoulos <constantinos.andreopoulos \at cern.ch>
 University of Liverpool & STFC Rutherford Appleton Laboratory
*/
//____________________________________________________________________________

#include <fstream>
#include <iomanip>

#include <TSystem.h>

#include "Framework/Messenger/Messenger.h"
#include "Framework/Ntuple/NtpMCTreeHeader.h"

using namespace genie;

ClassImp(NtpMCTreeHeader)

using std::ifstream;
using std::endl;
using std::ios;

//____________________________________________________________________________
namespace genie {
  ostream & operator<< (ostream& stream, const NtpMCTreeHeader & hdr)
  {
     hdr.PrintToStream(stream);
     return stream;
  }
}
//____________________________________________________________________________
NtpMCTreeHeader::NtpMCTreeHeader() :
TNamed("header","GENIE output tree header")
{
  this->Init();
}
//____________________________________________________________________________
NtpMCTreeHeader::NtpMCTreeHeader(const NtpMCTreeHeader & hdr) :
TNamed("header","GENIE output tree header")
{
  this->Copy(hdr);
}
//____________________________________________________________________________
NtpMCTreeHeader::~NtpMCTreeHeader()
{

}
//____________________________________________________________________________
void NtpMCTreeHeader::PrintToStream(ostream & stream) const
{
  string sformat = NtpMCFormat::AsString(this->format);
  string scvstag = this->cvstag.GetString().Data();
  string stune       = this->tune.GetString().Data();
  string stuneDir    = this->tuneDir.GetString().Data();
  string scustomDirs = this->customDirs.GetString().Data();

  stream << "Tree Header Info:"                      << endl
         << "MC run number     -> " << this->runnu   << endl
         << "MC run seed       -> " << this->runseed << endl
         << "NtpRecord Format  -> " << sformat       << endl
         << "GENIE CVS Vrs Nu  -> " << scvstag       << endl
         << "GENIE tune name   -> " << stune         << endl
         << "tune directory    -> " << stuneDir      << endl
         << "custom directories-> " << scustomDirs   << endl
         << "File generated at -> " << this->datime  << endl;
}
//____________________________________________________________________________
void NtpMCTreeHeader::Copy(const NtpMCTreeHeader & hdr)
{
  this->format = hdr.format;
  this->cvstag.SetString(hdr.cvstag.GetString().Data());
  this->datime.Copy(hdr.datime);
  this->runnu  = hdr.runnu;
  this->runseed  = hdr.runseed;
  this->tune.SetString(hdr.tune.GetString().Data());
  this->tuneDir.SetString(hdr.tuneDir.GetString().Data());
  this->customDirs.SetString(hdr.customDirs.GetString().Data());
}
//____________________________________________________________________________
void NtpMCTreeHeader::Init(void)
{
  string version;
  string genie_path = gSystem->Getenv("GENIE");
  string filename   = genie_path + "/VERSION";
  bool vrs_file_found = ! (gSystem->AccessPathName(filename.c_str()));
  if (!vrs_file_found) {
   LOG("Ntp", pERROR)
       << "The GENIE version file [" << filename << "] is not accessible";
   version = "NO CVS version number was specified";
  } else {
    ifstream gvinp(filename.c_str(), ios::in);
    gvinp >> version;
    gvinp.close();
  }

  string tunename("unknown");
  string tuneDir("unknown");
  string customDirs("");

  this->format = kNFUndefined;
  this->cvstag.SetString(version.c_str());
  this->datime.Now();
  this->runnu   = 0;
  this->runseed = 0;
  this->tune.SetString(tunename.c_str());
  this->tuneDir.SetString(tuneDir.c_str());
  this->customDirs.SetString(customDirs.c_str());
}
//____________________________________________________________________________