/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_7/src/RecoHI/HiCentralityAlgos/src/CentralityTableProducer.cc

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// -*- C++ -*-
//
// Package:    CentralityTableProducer
// Class:      CentralityTableProducer
// 
//
// Original Author:  Yetkin Yilmaz
//         Created:  Wed May  2 21:41:30 EDT 2007
// $Id: CentralityTableProducer.cc,v 1.13 2011/05/20 17:17:29 wmtan Exp $
//
//


// system include files
#include <iostream>
#include <fstream>
#include <vector>
#include <string>

// user include files
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/EDAnalyzer.h"

#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include "CommonTools/UtilAlgos/interface/TFileService.h"
#include "FWCore/ServiceRegistry/interface/Service.h"

#include "DataFormats/Candidate/interface/Candidate.h"
#include "DataFormats/RecoCandidate/interface/RecoCaloTowerCandidate.h"
#include "DataFormats/HcalRecHit/interface/HcalRecHitCollections.h"
#include "DataFormats/Common/interface/Ref.h"

#include "CondFormats/DataRecord/interface/HeavyIonRcd.h"
#include "CondFormats/HIObjects/interface/CentralityTable.h"
#include "CondCore/DBOutputService/interface/PoolDBOutputService.h"

#include "DataFormats/HeavyIonEvent/interface/CentralityProvider.h"

#include <TFile.h>

using namespace std;
//
// class decleration
//

class CentralityTableProducer : public edm::EDAnalyzer {
   public:
      explicit CentralityTableProducer(const edm::ParameterSet&);
      ~CentralityTableProducer();

   private:
      virtual void beginRun(const edm::EventSetup&) ;
      virtual void analyze(const edm::Event&, const edm::EventSetup&);
      virtual void endJob() ;
   void printBin(const CentralityTable::CBin*);
      // ----------member data ---------------------------

   bool makeDBFromTFile_;
   bool makeTFileFromDB_;
  bool firstRunOnly_;
  bool debug_;

   edm::ESHandle<CentralityTable> inputDB_;
   TFile* inputTFile_;
   string inputTFileName_;   
   edm::Service<TFileService> fs;

   string rootTag_;
   ofstream text_;

   CentralityTable* CT;
   const CentralityBins* CB;

   unsigned int runnum_;

};

//
// constants, enums and typedefs
//

//
// static data member definitions
//

//
// constructors and destructor
//
CentralityTableProducer::CentralityTableProducer(const edm::ParameterSet& iConfig):
   text_("bins.txt"),
   runnum_(0)
{
   //now do what ever initialization is needed
   makeDBFromTFile_ = iConfig.getUntrackedParameter<bool>("makeDBFromTFile",1);
   makeTFileFromDB_ = iConfig.getUntrackedParameter<bool>("makeTFileFromDB",0);
   firstRunOnly_ = iConfig.getUntrackedParameter<bool>("isMC",false);
   debug_ = iConfig.getUntrackedParameter<bool>("debug",false);
   if(makeDBFromTFile_){
      inputTFileName_ = iConfig.getParameter<string>("inputTFile");
      rootTag_ = iConfig.getParameter<string>("rootTag");
      inputTFile_  = new TFile(inputTFileName_.data(),"read");
      cout<<inputTFileName_.data()<<endl;
   }
}

CentralityTableProducer::~CentralityTableProducer()
{
   // do anything here that needs to be done at desctruction time
   // (e.g. close files, deallocate resources etc.)
}

//
// member functions
//

// ------------ method called to for each event  ------------
void
CentralityTableProducer::analyze(const edm::Event& iEvent, const edm::EventSetup& iSetup)
{
  if(!makeTFileFromDB_) return;
  if((!firstRunOnly_ && runnum_ != iEvent.id().run()) || (firstRunOnly_ && runnum_ == 0)){
    runnum_ = iEvent.id().run();
    cout<<"Adding table for run : "<<runnum_<<endl;
    CentralityProvider cent(iSetup);
    if(debug_) cent.print();
    TFileDirectory subDir = fs->mkdir(Form("run%d",runnum_));
    CB = subDir.make<CentralityBins>((CentralityBins)cent);
  }    
}

// ------------ method called once each job just before starting event loop  ------------
void 
CentralityTableProducer::beginRun(const edm::EventSetup& iSetup)
{
}

// ------------ method called once each job just after ending the event loop  ------------
void 
CentralityTableProducer::endJob() {

   if(makeDBFromTFile_){
      runnum_ = 1;
      // Get values from root file
      CB = (CentralityBins*) inputTFile_->Get(Form("%s/run%d",rootTag_.data(),runnum_));
      cout<<rootTag_.data()<<endl;
      CT = new CentralityTable();
      CT->m_table.reserve(CB->getNbins());

      text_<<"# BinEdge NpartMean NpartVar NcollMean NcollVar NhardMean NhardVar bMean bVar"<<endl;
   for(int j=0; j<CB->getNbins(); j++){
       CentralityTable::CBin* thisBin = new CentralityTable::CBin();
       thisBin->bin_edge = CB->lowEdgeOfBin(j);
       thisBin->n_part.mean = CB->NpartMeanOfBin(j);
       thisBin->n_part.var  = CB->NpartSigmaOfBin(j);
       thisBin->n_coll.mean = CB->NcollMeanOfBin(j);
       thisBin->n_coll.var  = CB->NcollSigmaOfBin(j);
       thisBin->n_hard.mean = CB->NhardMeanOfBin(j);
       thisBin->n_hard.var  = CB->NhardSigmaOfBin(j);
       thisBin->b.mean = CB->bMeanOfBin(j);
       thisBin->b.var = CB->bSigmaOfBin(j);
       printBin(thisBin);
       CT->m_table.push_back(*thisBin);
       if(thisBin) delete thisBin;
  }

      edm::Service<cond::service::PoolDBOutputService> pool;
      if( pool.isAvailable() ){
         if( pool->isNewTagRequest( "HeavyIonRcd" ) ){
            pool->createNewIOV<CentralityTable>( CT, pool->beginOfTime(), pool->endOfTime(), "HeavyIonRcd" );
         }else{
            pool->appendSinceTime<CentralityTable>( CT, pool->currentTime(), "HeavyIonRcd" );
         }
      }
   }
}


void CentralityTableProducer::printBin(const CentralityTable::CBin* thisBin){
  
   cout<<"HF Cut = "<<thisBin->bin_edge<<endl;
   cout<<"Npart = "<<thisBin->n_part.mean<<endl;
   cout<<"sigma = "<<thisBin->n_part.var<<endl;
   cout<<"Ncoll = "<<thisBin->n_coll.mean<<endl;
   cout<<"sigma = "<<thisBin->n_coll.var<<endl;
   cout<<"B     = "<<thisBin->b.mean<<endl;
   cout<<"sigma = "<<thisBin->b.var<<endl;
   text_<<Form("%0.2f\t%0.2f\t%0.2f\t%0.2f\t%0.2f\t%0.2f\t%0.2f\t%0.2f\t%0.2f",
               (Float_t)thisBin->bin_edge,
               (Float_t)thisBin->n_part.mean,
               (Float_t)thisBin->n_part.var,
               (Float_t)thisBin->n_coll.mean,
               (Float_t)thisBin->n_coll.var,
               (Float_t)thisBin->n_hard.mean,
               (Float_t)thisBin->n_hard.var,
               (Float_t)thisBin->b.mean,
               (Float_t)thisBin->b.var)
        <<endl;
   cout<<"__________________________________________________"<<endl;
   
}



//define this as a plug-in
DEFINE_FWK_MODULE(CentralityTableProducer);