/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_7/src/DQMOffline/PFTau/src/PFMETMonitor.cc

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#include "DataFormats/METReco/interface/MET.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "DQMOffline/PFTau/interface/Matchers.h"

#include "DQMOffline/PFTau/interface/PFMETMonitor.h"

#include <TROOT.h>
#include <TFile.h>
#include <TH1.h>
#include <TH2.h>

//
// -- Constructor
//
PFMETMonitor::PFMETMonitor( Benchmark::Mode mode) : 
   Benchmark(mode), 
   candBench_(mode), 
   matchCandBench_(mode) {

  setRange( 0.0, 10e10, -10.0, 10.0, -3.14, 3.14);

  px_                        = 0;
  sumEt_                     = 0;
  delta_ex_                  = 0;
  delta_ex_VS_set_           = 0;
  delta_set_VS_set_          = 0;
  delta_set_Over_set_VS_set_ = 0;
  
  createMETSpecificHistos_ = false;
  histogramBooked_ = false;
} 
//
// -- Destructor
//
PFMETMonitor::~PFMETMonitor() {}

//
// -- Set Parameters accessing them from ParameterSet
//
void PFMETMonitor::setParameters( const edm::ParameterSet & parameterSet) {
  
  mode_           = (Benchmark::Mode) parameterSet.getParameter<int>( "mode" );
  createMETSpecificHistos_ = parameterSet.getParameter<bool>( "CreateMETSpecificHistos" );
  setRange( parameterSet.getParameter<double>("ptMin"),
            parameterSet.getParameter<double>("ptMax"),
            parameterSet.getParameter<double>("etaMin"),
            parameterSet.getParameter<double>("etaMax"),
            parameterSet.getParameter<double>("phiMin"),
            parameterSet.getParameter<double>("phiMax") );


  candBench_.setParameters(mode_);
  matchCandBench_.setParameters(mode_);
}
//
// -- Set Parameters 
//
void PFMETMonitor::setParameters(Benchmark::Mode mode, float ptmin, float ptmax, 
                       float etamin, float etamax, float phimin, 
                                 float phimax, bool metSpHistos) {
  mode_           = mode;
  createMETSpecificHistos_ = metSpHistos;

  setRange( ptmin, ptmax, etamin, etamax, phimin, phimax);

  candBench_.setParameters(mode_);
  matchCandBench_.setParameters(mode_);  
}
//
// -- Create histograms accessing parameters from ParameterSet
//
void PFMETMonitor::setup(const edm::ParameterSet & parameterSet) {
  candBench_.setup(parameterSet);
  matchCandBench_.setup(parameterSet);
  
  if (createMETSpecificHistos_ && !histogramBooked_) {

    edm::ParameterSet pxPS      = parameterSet.getParameter<edm::ParameterSet>("DeltaPxHistoParameter");
    edm::ParameterSet dpxPS      = parameterSet.getParameter<edm::ParameterSet>("DeltaPxHistoParameter");
    edm::ParameterSet dptPS      = parameterSet.getParameter<edm::ParameterSet>("DeltaPtHistoParameter");
    edm::ParameterSet setPS      = parameterSet.getParameter<edm::ParameterSet>("SumEtHistoParameter");
    edm::ParameterSet dsetPS     = parameterSet.getParameter<edm::ParameterSet>("DeltaSumEtHistoParameter");
    edm::ParameterSet setOvsetPS = parameterSet.getParameter<edm::ParameterSet>("DeltaSumEtOvSumEtHistoParameter");
    
    if (pxPS.getParameter<bool>("switchOn")) {
      px_  = book1D("px_", "px_;p_{X} (GeV)",
                     pxPS.getParameter<int32_t>("nBin"),
                     pxPS.getParameter<double>("xMin"),
                     pxPS.getParameter<double>("xMax"));
    }
    if (setPS.getParameter<bool>("switchOn")) {
      sumEt_  = book1D("sumEt_", "sumEt_;#sumE_{T}",
                     setPS.getParameter<int32_t>("nBin"),
                     setPS.getParameter<double>("xMin"),
                     setPS.getParameter<double>("xMax"));
    }
    if (dpxPS.getParameter<bool>("switchOn")) {
      delta_ex_  = book1D("delta_ex_", "#DeltaME_{X}",
                     dpxPS.getParameter<int32_t>("nBin"),
                     dpxPS.getParameter<double>("xMin"),
                     dpxPS.getParameter<double>("xMax"));
    }

    if (dpxPS.getParameter<bool>("switchOn")) {
      delta_ex_VS_set_ = book2D("delta_ex_VS_set_", 
                                ";SE_{T, true} (GeV);#DeltaE_{X}",
                                setPS.getParameter<int32_t>("nBin"), 
                                setPS.getParameter<double>("xMin"), 
                                setPS.getParameter<double>("xMax"),                             
                                dptPS.getParameter<int32_t>("nBin"),
                                dptPS.getParameter<double>("xMin"), 
                                dptPS.getParameter<double>("xMax"));
    }
    if (dsetPS.getParameter<bool>("switchOn")) {
      delta_set_VS_set_ = book2D("delta_set_VS_set_", 
                                 ";SE_{T, true} (GeV);#DeltaSE_{T}",
                                 setPS.getParameter<int32_t>("nBin"), 
                                 setPS.getParameter<double>("xMin"), 
                                 setPS.getParameter<double>("xMax"),
                                 dsetPS.getParameter<int32_t>("nBin"), 
                                 dsetPS.getParameter<double>("xMin"), 
                                 dsetPS.getParameter<double>("xMax"));
    }
    if (setOvsetPS.getParameter<bool>("switchOn")) {
      delta_set_Over_set_VS_set_ = book2D("delta_set_Over_set_VS_set_", 
                                          ";SE_{T, true} (GeV);#DeltaSE_{T}/SE_{T}",
                                          setPS.getParameter<int32_t>("nBin"), 
                                          setPS.getParameter<double>("xMin"), 
                                          setPS.getParameter<double>("xMax"),
                                          setOvsetPS.getParameter<int32_t>("nBin"), 
                                          setOvsetPS.getParameter<double>("xMin"), 
                                          setOvsetPS.getParameter<double>("xMax"));
    }
    histogramBooked_ = true;
  }
}
//
// -- Create histograms using local parameters
//
void PFMETMonitor::setup() {
  candBench_.setup();
  matchCandBench_.setup();
  
  if (createMETSpecificHistos_ && !histogramBooked_) {

    PhaseSpace pxPS       = PhaseSpace( 50, 0, 200);
    PhaseSpace dpxPS      = PhaseSpace( 50, -500, 500);    
    PhaseSpace setPS      = PhaseSpace( 50, 0.0, 3000);
    PhaseSpace dsetPS     = PhaseSpace( 50, -1000.0, 1000);
    PhaseSpace setOvsetPS = PhaseSpace( 100,0., 2.);

    px_  = book1D("px_", "px_;p_{X} (GeV)", pxPS.n, pxPS.m, pxPS.M);

    sumEt_ = book1D("sumEt_", "sumEt_;#sumE_{T}", setPS.n, setPS.m, setPS.M);

    delta_ex_ = book1D("delta_ex_", "#DeltaME_{X}", dpxPS.n, dpxPS.m, dpxPS.M);
    
    delta_ex_VS_set_ = book2D("delta_ex_VS_set_", ";SE_{T, true} (GeV);#DeltaE_{X}",
                              setPS.n, setPS.m, setPS.M, 
                              dpxPS.n, dpxPS.m, dpxPS.M );
    
    delta_set_VS_set_ = book2D("delta_set_VS_set_", 
                               ";SE_{T, true} (GeV);#DeltaSE_{T}",
                               setPS.n, setPS.m, setPS.M,
                               dsetPS.n, dsetPS.m, dsetPS.M );
    
    delta_set_Over_set_VS_set_ = book2D("delta_set_Over_set_VS_set_", 
                                        ";SE_{T, true} (GeV);#DeltaSE_{T}/SE_{T}",
                                        setPS.n, setPS.m, setPS.M,
                                        setOvsetPS.n, setOvsetPS.m, setOvsetPS.M );
    histogramBooked_ = true;
  }
}

void PFMETMonitor::setDirectory(TDirectory* dir) {
  Benchmark::setDirectory(dir);

  candBench_.setDirectory(dir);
  matchCandBench_.setDirectory(dir);
}

void PFMETMonitor::fillOne(const reco::MET& met,
                           const reco::MET& matchedMet, float& minVal, float& maxVal) {
  candBench_.fillOne(met);
  matchCandBench_.fillOne(met, matchedMet);
  if (createMETSpecificHistos_ && histogramBooked_) {
    if( !isInRange(met.pt(), met.eta(), met.phi() ) ) return;

    if (px_) px_->Fill(met.px());
    if (delta_ex_) {
      delta_ex_->Fill(met.px()-matchedMet.px());
      delta_ex_->Fill(met.py()-matchedMet.py());
    }
    if (sumEt_) sumEt_->Fill( met.sumEt());

    if (delta_ex_VS_set_) {
      delta_ex_VS_set_->Fill(matchedMet.sumEt(), met.px()-matchedMet.px());
      delta_ex_VS_set_->Fill(matchedMet.sumEt(), met.py()-matchedMet.py());
    }
    if (delta_set_VS_set_) delta_set_VS_set_->Fill(matchedMet.sumEt(),met.sumEt()-matchedMet.sumEt());
    if (delta_set_Over_set_VS_set_ &&  matchedMet.sumEt()>0.001 ) {
      float setRes = (met.sumEt() - matchedMet.sumEt())/matchedMet.sumEt();
      if (setRes > maxVal) maxVal = setRes;
      if (setRes < minVal) minVal = setRes;    
      delta_set_Over_set_VS_set_->Fill(matchedMet.sumEt(),setRes);
    }
  } 
}