PerformancePayloadFromTFormula.cc

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#include "CondFormats/PhysicsToolsObjects/interface/PerformancePayloadFromTFormula.h"

const int PerformancePayloadFromTFormula::InvalidPos=-1;

#include <boost/uuid/uuid.hpp>
#include <boost/uuid/uuid_generators.hpp>
#include <boost/uuid/uuid_io.hpp>
#include <boost/lexical_cast.hpp>

#include <iostream>
using namespace std;

void PerformancePayloadFromTFormula::initialize() {
  boost::uuids::random_generator gen;

  for( std::vector<std::string>::const_iterator formula = pl.formulas().begin(); formula != pl.formulas().end(); ++formula ) {
    boost::uuids::uuid uniqueFormulaId = gen();
    const auto formulaUniqueName = boost::lexical_cast<std::string>(uniqueFormulaId);
    boost::shared_ptr<TFormula> temp(new TFormula(formulaUniqueName.c_str(),formula->c_str()));
    temp->Compile();
    compiledFormulas_.push_back(temp);
  }
}


float PerformancePayloadFromTFormula::getResult(PerformanceResult::ResultType r ,const BinningPointByMap& _p) const {
  BinningPointByMap p = _p;
  //
  // which formula to use?
  //
  if (! isInPayload(r,p)) return PerformancePayload::InvalidResult;

  // nice, what to do here???
  const boost::shared_ptr<TFormula>& formula = compiledFormulas_[resultPos(r)];
  //
  // prepare the vector to pass, order counts!!!
  //
  std::vector<BinningVariables::BinningVariablesType> t = myBinning();

  // sorry, TFormulas just work up to dimension==4
  Double_t values[4];
  int i=0;
  for (std::vector<BinningVariables::BinningVariablesType>::const_iterator it = t.begin(); it != t.end();++it, ++i){
    values[i] = p.value(*it);
  }
  //
  // i need a non const version #$%^
  // Note, in current implementation of TFormula EvalPar should be
  // thread safe as it does nothing more than call a function
  // through a function pointer which is stateless. In spite of the
  // fact that it is not const.
  return formula->EvalPar(values);
}

bool PerformancePayloadFromTFormula::isOk(const BinningPointByMap& _p) const {
  BinningPointByMap p = _p;
  std::vector<BinningVariables::BinningVariablesType> t = myBinning();

  for (std::vector<BinningVariables::BinningVariablesType>::const_iterator it = t.begin(); it != t.end();++it){
    if (!   p.isKeyAvailable(*it)) return false;
    float v = p.value(*it);
    int pos = limitPos(*it);
    std::pair<float, float> limits = (pl.limits())[pos];
    if (v<limits.first || v>limits.second) return false;
  }
  return true;
}

bool PerformancePayloadFromTFormula::isInPayload(PerformanceResult::ResultType res,const BinningPointByMap& point) const {
  // first, let's see if it is available at all
  if (resultPos(res) == PerformancePayloadFromTFormula::InvalidPos) return false;

  if ( ! isOk(point)) return false;
  return true;
}

void PerformancePayloadFromTFormula::printFormula(PerformanceResult::ResultType res) const {
  //
  // which formula to use?
  //
  if (resultPos(res) == PerformancePayloadFromTFormula::InvalidPos)  {
    cout << "Warning: result not available!" << endl;
    return;
  }

  // nice, what to do here???
  const boost::shared_ptr<TFormula>& formula =
    compiledFormulas_[resultPos(res)];
  cout << "-- Formula: " << formula->GetExpFormula("p") << endl;
  // prepare the vector to pass, order counts!!!
  //
  std::vector<BinningVariables::BinningVariablesType> t = myBinning();

  for (std::vector<BinningVariables::BinningVariablesType>::const_iterator it = t.begin(); it != t.end();++it){
    int pos = limitPos(*it);
    std::pair<float, float> limits = (pl.limits())[pos];
    cout << "      Variable: " << *it << " with limits: " << "from: " << limits.first  << " to: " << limits.second << endl;
  }

}

#include "FWCore/Utilities/interface/typelookup.h"
TYPELOOKUP_DATA_REG(PerformancePayloadFromTFormula);