//-----------------------------------------------------------
// File and Version Information:
// $Id$
//
// Description:
//      Storage class for (MC) fractions 
//      
//      
//
//
// Environment:
//      Software developed for GEM-TPC detector in FOPI.
//
// Author List:
//      Felix Boehmer    TUM            (original author)
//
//
//-----------------------------------------------------------


#include "FopiPidFractionSet.h"

#include <utility>
#include <iostream>


ClassImp(FopiPidFractionSet)



FopiPidFractionSet::FopiPidFractionSet() 
  :
  fMinMom(0.),
  fMaxMom(0.)
{;}

FopiPidFractionSet::FopiPidFractionSet(double min, double max) 
  :
  fMinMom(min),
  fMaxMom(max)
{;}


bool 
FopiPidFractionSet::addFraction(const TString& part, double fraction) {
  std::pair<TString, double> ins(part,fraction);
  std::pair<std::map<TString, double>::iterator, bool> ret;
  ret = fFracMap.insert(ins);
  if(ret.second)  //insertion succesful
    return false;
  else {
    std::cout<<"FopiPidFractionSet::addFraction() Entry already existing, nothing inserted"
	     <<std::endl;
    return true;
  }
}


double 
FopiPidFractionSet::getFraction(const TString& part) const {
  std::map<TString, double>::const_iterator it;
  it = fFracMap.find(part);
  if(it!=fFracMap.end())
    return it->second;
  else 
    return -1.;
}

void 
FopiPidFractionSet::getMomWindow(double& min, double& max) const {
  min = fMinMom;
  max = fMaxMom;
}