/data/refman/pasoursint/CMSSW_6_1_2_SLHC2_patch1/src/CalibMuon/CSCCalibration/interface/CSCPedestalsDBConditions.h

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#ifndef _CSCPEDESTALSDBCONDITIONS_H
#define _CSCPEDESTALSDBCONDITIONS_H

#include <memory>
#include <cmath>
#include "FWCore/Framework/interface/SourceFactory.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/ESProducer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Framework/interface/EventSetupRecordIntervalFinder.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include <DataFormats/MuonDetId/interface/CSCDetId.h>
#include "CondFormats/CSCObjects/interface/CSCDBPedestals.h"
#include "CondFormats/DataRecord/interface/CSCDBPedestalsRcd.h"

class CSCPedestalsDBConditions: public edm::ESProducer, public edm::EventSetupRecordIntervalFinder  {
 public:
  CSCPedestalsDBConditions(const edm::ParameterSet&);
  ~CSCPedestalsDBConditions();
  
  inline static CSCDBPedestals * prefillDBPedestals();

  typedef const  CSCDBPedestals * ReturnType;
  
  ReturnType produceDBPedestals(const CSCDBPedestalsRcd&);
  
 private:
  // ----------member data ---------------------------
  void setIntervalFor(const edm::eventsetup::EventSetupRecordKey &, const edm::IOVSyncValue&, edm::ValidityInterval & );
  CSCDBPedestals *cndbPedestals ;

};

#include <DataFormats/MuonDetId/interface/CSCDetId.h>
#include "CondFormats/CSCObjects/interface/CSCDBPedestals.h"
#include "CondFormats/DataRecord/interface/CSCDBPedestalsRcd.h"

#include<fstream>
#include<vector>
#include<iostream>

// to workaround plugin library
inline CSCDBPedestals * CSCPedestalsDBConditions::prefillDBPedestals()  
{
  const int PED_FACTOR=10;
  const int RMS_FACTOR=1000;
  const int MAX_SIZE = 252288;
  //const int MAX_SIZE = 273024; //for extra ME1a unganged case
  const int MAX_SHORT= 32767;
  CSCDBPedestals * cndbpedestals = new CSCDBPedestals();

  int db_index;
  float db_ped, db_rms;
  std::vector<int> db_index_id;
  std::vector<float> db_peds;
  std::vector<float> db_pedrms;
  int new_index;
  float new_ped,new_rms;
  std::vector<int> new_index_id;
  std::vector<float> new_peds;
  std::vector<float> new_pedrms;

  int counter;
  int db_nrlines=0;
  int new_nrlines=0;
  
  std::ifstream dbdata; 
  dbdata.open("old_dbpeds.dat",std::ios::in); 
  if(!dbdata) {
    std::cerr <<"Error: old_dbpeds.dat -> no such file!"<< std::endl;
    exit(1);
  }
  
  while (!dbdata.eof() ) { 
    dbdata >> db_index >> db_ped >> db_rms ; 
    db_index_id.push_back(db_index);
    db_peds.push_back(db_ped);
    db_pedrms.push_back(db_rms);
    db_nrlines++;
  }
  dbdata.close();

  std::ifstream newdata;
  newdata.open("peds.dat",std::ios::in); 
  if(!newdata) {
    std::cerr <<"Error: peds.dat -> no such file!"<< std::endl;
    exit(1);
  }
  
  while (!newdata.eof() ) { 
    newdata >> new_index >> new_ped >> new_rms ; 
    new_index_id.push_back(new_index);
    new_peds.push_back(new_ped);
    new_pedrms.push_back(new_rms);
    new_nrlines++;
  }
  newdata.close();
  
  CSCDBPedestals::PedestalContainer & itemvector = cndbpedestals->pedestals;
  itemvector.resize(MAX_SIZE);
  cndbpedestals->factor_ped= int (PED_FACTOR);
  cndbpedestals->factor_rms= int (RMS_FACTOR);

  for(int i=0; i<MAX_SIZE;++i){
    itemvector[i].ped= (short int) (db_peds[i]*PED_FACTOR+0.5);
    itemvector[i].rms= (short int) (db_pedrms[i]*RMS_FACTOR+0.5);
  }

  for(int i=0; i<MAX_SIZE;++i){
     counter=db_index_id[i];  
     itemvector[i] = itemvector[counter];
     itemvector[i].ped = int (db_peds[i]);
     itemvector[i].rms = int (db_pedrms[i]);

     for (unsigned int k=0;k<new_index_id.size()-1;k++){
       if(counter==new_index_id[k]){
         if((short int) (fabs(new_peds[k]*PED_FACTOR+0.5))<MAX_SHORT)   itemvector[counter].ped= int (new_peds[k]*PED_FACTOR+0.5);
         if((short int) (fabs(new_pedrms[k]*RMS_FACTOR+0.5))<MAX_SHORT) itemvector[counter].rms= int (new_pedrms[k]*RMS_FACTOR+0.5);
         itemvector[i] = itemvector[counter];
         //if (new_peds[k]==0) itemvector[counter].ped = int (db_peds[i]);
         //if (new_pedrms[k]==0) itemvector[counter].rms = int (db_pedrms[i]);
       }  
     }
     
     if (counter>223968){
       itemvector[counter].ped = int (db_peds[i]);
       itemvector[counter].rms = int (db_pedrms[i]);
       itemvector[i] = itemvector[counter];
     }
     
   }
   return cndbpedestals;
}

#endif