/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_14/src/CalibMuon/CSCCalibration/plugins/CSCFakeGainsConditions.cc

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#include "CalibMuon/CSCCalibration/interface/CSCFakeGainsConditions.h"

void CSCFakeGainsConditions::prefillGains()
{
  cngains = new CSCGains();
  const CSCDetId& detId = CSCDetId();
      
  int max_istrip,id_layer,max_ring,max_cham;
  seed = 10000; 
  srand(seed);
  mean=6.8, min=-10.0, minchi=1.0, M=1000;


  //endcap=1 to 2,station=1 to 4, ring=1 to 4,chamber=1 to 36,layer=1 to 6 
  
  for(int iendcap=detId.minEndcapId(); iendcap<=detId.maxEndcapId(); iendcap++){
    for(int istation=detId.minStationId() ; istation<=detId.maxStationId(); istation++){
      max_ring=detId.maxRingId();
      //station 4 ring 4 not there(36 chambers*2 missing)
      //3 rings max this way of counting (ME1a & b)
      if(istation==1)    max_ring=3;
      if(istation==2)    max_ring=2;
      if(istation==3)    max_ring=2;
      if(istation==4)    max_ring=1;
      
      for(int iring=detId.minRingId(); iring<=max_ring; iring++){
        max_istrip=80;
        max_cham=detId.maxChamberId();  
        if(istation==1 && iring==1)    max_cham=36;
        if(istation==1 && iring==2)    max_cham=36;
        if(istation==1 && iring==3)    max_cham=36;
        if(istation==2 && iring==1)    max_cham=18;
        if(istation==2 && iring==2)    max_cham=36;
        if(istation==3 && iring==1)    max_cham=18;
        if(istation==3 && iring==2)    max_cham=36;
        if(istation==4 && iring==1)    max_cham=18;
        
        for(int ichamber=detId.minChamberId(); ichamber<=max_cham; ichamber++){
          for(int ilayer=detId.minLayerId(); ilayer<=detId.maxLayerId(); ilayer++){
            //station 1 ring 3 has 64 strips per layer instead of 80 
            if(istation==1 && iring==3)   max_istrip=64;
            
            std::vector<CSCGains::Item> itemvector;
            itemvector.resize(max_istrip);
            id_layer = 100000*iendcap + 10000*istation + 1000*iring + 10*ichamber + ilayer;
            
            for(int istrip=0;istrip<max_istrip;istrip++){
              //itemvector[istrip].gain_slope    = 7.55;
              //itemvector[istrip].gain_intercept= -10.00;
              //itemvector[istrip].gain_chi2     = 2.00;
              itemvector[istrip].gain_slope=((double)rand()/((double)(RAND_MAX)+(double)(1)))+mean;
              itemvector[istrip].gain_intercept=((double)rand()/((double)(RAND_MAX)+(double)(1)))+min;
              itemvector[istrip].gain_chi2=((double)rand()/((double)(RAND_MAX)+(double)(1)))+minchi;
              cngains->gains[id_layer]=itemvector;
            }
          }
        }
      }
    }
  }
}  

CSCFakeGainsConditions::CSCFakeGainsConditions(const edm::ParameterSet& iConfig)
{
  //the following line is needed to tell the framework what
  // data is being produced
  prefillGains();
  setWhatProduced(this,&CSCFakeGainsConditions::produceGains);
  findingRecord<CSCGainsRcd>();
  //now do what ever other initialization is needed
}


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


//
// member functions
//

// ------------ method called to produce the data  ------------
CSCFakeGainsConditions::ReturnType
CSCFakeGainsConditions::produceGains(const CSCGainsRcd& iRecord)
{
  return cngains;  
}

 void CSCFakeGainsConditions::setIntervalFor(const edm::eventsetup::EventSetupRecordKey &, const edm::IOVSyncValue&,
 edm::ValidityInterval & oValidity)
 {
 oValidity = edm::ValidityInterval(edm::IOVSyncValue::beginOfTime(),edm::IOVSyncValue::endOfTime());
 
 }