LumiInfoRunHeader.cc

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#include "DataFormats/Luminosity/interface/LumiInfoRunHeader.h"

LumiInfoRunHeader::LumiInfoRunHeader(std::string& lumiProvider, std::string& fillingSchemeName,
                     std::bitset<LumiConstants::numBX>& fillingScheme):
  lumiProvider_(lumiProvider),
  fillingSchemeName_(fillingSchemeName),
  fillingScheme_(fillingScheme)
{
  setBunchSpacing();
}

bool LumiInfoRunHeader::isProductEqual(LumiInfoRunHeader const& o) const
{
  return (lumiProvider_ == o.lumiProvider_ &&
      fillingSchemeName_ == o.fillingSchemeName_ &&
      fillingScheme_ == o.fillingScheme_);
}

//==============================================================================

void LumiInfoRunHeader::setFillingScheme(const std::bitset<LumiConstants::numBX>& fillingScheme) {
  fillingScheme_ = fillingScheme;
  setBunchSpacing();
}

// This function determines the bunch spacing from the filling scheme
// and sets bunchSpacing_ accordingly.

void LumiInfoRunHeader::setBunchSpacing(void) {
  int lastFilledBunch = -1;
  int minimumSpacingFound = LumiConstants::numBX;

  for (unsigned int i=0; i<LumiConstants::numBX; i++) {
    if (fillingScheme_[i]) {
      if (lastFilledBunch >= 0) {
    int thisSpacing = i-lastFilledBunch;
    if (thisSpacing < minimumSpacingFound)
      minimumSpacingFound = thisSpacing;
      }
      lastFilledBunch = i;
    }
  }
  
  // If no bunches are filled, then just leave bunchSpacing at 0
  if (lastFilledBunch == -1)
    bunchSpacing_ = 0;
  else
    bunchSpacing_ = LumiConstants::bxSpacingInt*minimumSpacingFound;
}