#include <DataMixingEMDigiWorker.h>

Public Member Functions
void	addEMPileups (const int bcr, edm::EventPrincipal *, unsigned int EventId, const edm::EventSetup &ES)

void	addEMSignals (const edm::Event &e, const edm::EventSetup &ES)

	DataMixingEMDigiWorker ()

	DataMixingEMDigiWorker (const edm::ParameterSet &ps)

void	putEM (edm::Event &e, const edm::EventSetup &ES)

virtual	~DataMixingEMDigiWorker ()

Private Types
typedef std::multimap< DetId, EBDataFrame >	EBDigiMap

typedef std::multimap< DetId, EEDataFrame >	EEDigiMap

typedef std::multimap< DetId, ESDataFrame >	ESDigiMap

Private Member Functions
const std::vector< float >	GetGainRatios (const edm::EventSetup &ES, const DetId &detid)
	retrieve gain ratios for that detid [0]=g12, [1]=g6, [2]=g12 More...

const std::vector< float >	GetPedestals (const edm::EventSetup &ES, const DetId &detid)
	retrieve pedestals for that detid [0]=g12, [1]=g6, [2]=g12 More...

Private Attributes
std::string	EBDigiCollectionDM_

edm::InputTag	EBdigiCollectionSig_

EBDigiMap	EBDigiStorage_

edm::InputTag	EBPileInputTag_

edm::InputTag	EBProducerSig_

std::string	EEDigiCollectionDM_

edm::InputTag	EEdigiCollectionSig_

EEDigiMap	EEDigiStorage_

edm::InputTag	EEPileInputTag_

edm::InputTag	EEProducerSig_

std::string	ESDigiCollectionDM_

edm::InputTag	ESdigiCollectionSig_

ESDigiMap	ESDigiStorage_

edm::InputTag	ESPileInputTag_

edm::InputTag	ESProducerSig_

std::string	label_

Selector *	sel_

Detailed Description

Definition at line 41 of file DataMixingEMDigiWorker.h.

Member Typedef Documentation

typedef std::multimap<DetId, EBDataFrame> edm::DataMixingEMDigiWorker::EBDigiMap

private

Definition at line 85 of file DataMixingEMDigiWorker.h.

typedef std::multimap<DetId, EEDataFrame> edm::DataMixingEMDigiWorker::EEDigiMap

private

Definition at line 86 of file DataMixingEMDigiWorker.h.

typedef std::multimap<DetId, ESDataFrame> edm::DataMixingEMDigiWorker::ESDigiMap

private

Definition at line 87 of file DataMixingEMDigiWorker.h.

Constructor & Destructor Documentation

DataMixingEMDigiWorker::DataMixingEMDigiWorker ( )

Definition at line 36 of file DataMixingEMDigiWorker.cc.

36 { sel_=0;}

edm::DataMixingEMDigiWorker::sel_

Selector * sel_

Definition: DataMixingEMDigiWorker.h:96

DataMixingEMDigiWorker::DataMixingEMDigiWorker ( const edm::ParameterSet & ps )

explicit

standard constructor

Definition at line 39 of file DataMixingEMDigiWorker.cc.

References EBDigiCollectionDM_, EBPileInputTag_, EBProducerSig_, EEDigiCollectionDM_, EEPileInputTag_, EEProducerSig_, ESDigiCollectionDM_, ESPileInputTag_, ESProducerSig_, edm::ParameterSet::getParameter(), label_, and sel_.

                                                                           : 
                                 label_(ps.getParameter<std::string>("Label"))
 
   {                                                         
 
     // get the subdetector names
     //    this->getSubdetectorNames();  //something like this may be useful to check what we are supposed to do...
 
     // create input selector
     if (label_.size()>0){
       sel_=new Selector( ModuleLabelSelector(label_));
     }
     else {
       sel_=new Selector( MatchAllSelector());
     }
 
     // declare the products to produce, retrieve
 
     EBProducerSig_ = ps.getParameter<edm::InputTag>("EBdigiProducerSig");
     EEProducerSig_ = ps.getParameter<edm::InputTag>("EEdigiProducerSig");
     ESProducerSig_ = ps.getParameter<edm::InputTag>("ESdigiProducerSig");
 
     EBPileInputTag_ = ps.getParameter<edm::InputTag>("EBPileInputTag");
     EEPileInputTag_ = ps.getParameter<edm::InputTag>("EEPileInputTag");
     ESPileInputTag_ = ps.getParameter<edm::InputTag>("ESPileInputTag");
 
     EBDigiCollectionDM_        = ps.getParameter<std::string>("EBDigiCollectionDM");
     EEDigiCollectionDM_        = ps.getParameter<std::string>("EEDigiCollectionDM");
     ESDigiCollectionDM_        = ps.getParameter<std::string>("ESDigiCollectionDM");
    //   nMaxPrintout_            = ps.getUntrackedParameter<int>("nMaxPrintout",10);
 
    //EBalgo_ = new EcalDigiSimpleAlgo();
    //EEalgo_ = new EcalDigiSimpleAlgo();
 
    // don't think I can "produce" in a sub-class...
 
    //produces< EBDigiCollection >(EBDigiCollectionDM_);
    //produces< EEDigiCollection >(EEDigiCollectionDM_);
 
   }

DataMixingEMDigiWorker::~DataMixingEMDigiWorker ( )

virtual

Default destructor

Definition at line 82 of file DataMixingEMDigiWorker.cc.

References sel_.

                                                   { 
     delete sel_;
     sel_=0;
   }  

Member Function Documentation

void DataMixingEMDigiWorker::addEMPileups	(	const int	bcr,
		edm::EventPrincipal *	ep,
		unsigned int	EventId,
		const edm::EventSetup &	ES
	)

Definition at line 184 of file DataMixingEMDigiWorker.cc.

References edm::SortedCollection< T, SORT >::begin(), edm::DataFrameContainer::begin(), EBDigiStorage_, EBPileInputTag_, EEDigiStorage_, EEPileInputTag_, edm::SortedCollection< T, SORT >::end(), edm::DataFrameContainer::end(), ESDigiStorage_, ESPileInputTag_, edm::EventPrincipal::id(), LogDebug, edm::SortedCollection< T, SORT >::size(), and edm::DataFrameContainer::size().

Referenced by edm::DataMixingModule::addPileups().

                                                                                                                             {
   
     LogInfo("DataMixingEMDigiWorker") <<"\n===============> adding pileups from event  "<<ep->id()<<" for bunchcrossing "<<bcr;
 
     // fill in maps of hits; same code as addSignals, except now applied to the pileup events
 
     // EB first
 
     boost::shared_ptr<Wrapper<EBDigiCollection>  const> EBDigisPTR = 
           getProductByTag<EBDigiCollection>(*ep, EBPileInputTag_ );
  
    if(EBDigisPTR ) {
 
      const EBDigiCollection*  EBDigis = const_cast< EBDigiCollection * >(EBDigisPTR->product());
 
      LogDebug("DataMixingEMDigiWorker") << "total # EB digis: " << EBDigis->size();
 
        // loop over digis, adding these to the existing maps
      for(EBDigiCollection::const_iterator it  = EBDigis->begin();
      it != EBDigis->end(); ++it) {
 
          EBDigiStorage_.insert(EBDigiMap::value_type( (it->id()), *it ));
      
 #ifdef DEBUG     
          LogDebug("DataMixingEMDigiWorker") << "processed EBDigi with rawId: "
                   << it->id().rawId() << "\n"
                   << " digi energy: " << it->energy();
 #endif
       }
     }
 
     // EE Next
 
     boost::shared_ptr<Wrapper<EEDigiCollection>  const> EEDigisPTR =
           getProductByTag<EEDigiCollection>(*ep, EEPileInputTag_ );
 
     if(EEDigisPTR ) {
 
      const EEDigiCollection*  EEDigis = const_cast< EEDigiCollection * >(EEDigisPTR->product()); 
 
      LogDebug("DataMixingEMDigiWorker") << "total # EE digis: " << EEDigis->size();
 
      for(EEDigiCollection::const_iterator it  = EEDigis->begin();
      it != EEDigis->end(); ++it) {
 
        EEDigiStorage_.insert(EEDigiMap::value_type( (it->id()), *it ));
      
 #ifdef DEBUG     
        LogDebug("DataMixingEMDigiWorker") << "processed EEDigi with rawId: "
                       << it->id().rawId() << "\n"
                       << " digi energy: " << it->energy();
 #endif
      }
    }
     // ES Next
 
     boost::shared_ptr<Wrapper<ESDigiCollection>  const> ESDigisPTR =
       getProductByTag<ESDigiCollection>(*ep, ESPileInputTag_ );
 
     if(ESDigisPTR ) {
 
       const ESDigiCollection*  ESDigis = const_cast< ESDigiCollection * >(ESDigisPTR->product());
 
       LogDebug("DataMixingEMDigiWorker") << "total # ES digis: " << ESDigis->size();
 
       for(ESDigiCollection::const_iterator it  = ESDigis->begin();
       it != ESDigis->end(); ++it) {
 
     ESDigiStorage_.insert(ESDigiMap::value_type( (it->id()), *it ));
 
 #ifdef DEBUG
     LogDebug("DataMixingEMDigiWorker") << "processed ESDigi with rawId: "
                        << it->id().rawId() << "\n"
                        << " digi energy: " << it->energy();
 #endif
       }
     }
  
   
  
   }

void DataMixingEMDigiWorker::addEMSignals	(	const edm::Event &	e,
		const edm::EventSetup &	ES
	)

Definition at line 87 of file DataMixingEMDigiWorker.cc.

References edm::SortedCollection< T, SORT >::begin(), edm::DataFrameContainer::begin(), gather_cfg::cout, EBdigiCollectionSig_, EBDigiStorage_, EBProducerSig_, EEDigiStorage_, EEProducerSig_, edm::SortedCollection< T, SORT >::end(), edm::DataFrameContainer::end(), ESDigiStorage_, ESProducerSig_, edm::Event::getByLabel(), edm::EventBase::id(), edm::InputTag::label(), LogDebug, edm::Handle< T >::product(), edm::SortedCollection< T, SORT >::size(), and edm::DataFrameContainer::size().

Referenced by edm::DataMixingModule::addSignals().

                                                                                      { 
     // fill in maps of hits
 
     LogInfo("DataMixingEMDigiWorker")<<"===============> adding MC signals for "<<e.id();
 
     // EB first
 
    Handle< EBDigiCollection > pEBDigis;
 
    const EBDigiCollection*  EBDigis = 0;
 
    if(e.getByLabel(EBProducerSig_, pEBDigis) ){
      EBDigis = pEBDigis.product(); // get a ptr to the product
      LogDebug("DataMixingEMDigiWorker") << "total # EB digis: " << EBDigis->size();
    }
    else { std::cout << "NO EBDigis! " << EBProducerSig_.label() << " " << EBdigiCollectionSig_.label() << std::endl;}
  
    if (EBDigis)
      {
        // loop over digis, storing them in a map so we can add pileup later
 
 
        for(EBDigiCollection::const_iterator it  = EBDigis->begin(); 
        it != EBDigis->end(); ++it) {
 
      EBDigiStorage_.insert(EBDigiMap::value_type( ( it->id() ), *it ));
 #ifdef DEBUG     
          LogDebug("DataMixingEMDigiWorker") << "processed EBDigi with rawId: "
                       << it->id().rawId() << "\n"
                       << " digi energy: " << it->energy();
 #endif
        }
      }
 
    // EE next
 
    Handle< EEDigiCollection > pEEDigis;
 
    const EEDigiCollection*  EEDigis = 0;
 
    
    if(e.getByLabel(EEProducerSig_, pEEDigis) ){
      EEDigis = pEEDigis.product(); // get a ptr to the product
      LogDebug("DataMixingEMDigiWorker") << "total # EE digis: " << EEDigis->size();
    } 
    
  
    if (EEDigis)
      {
        // loop over digis, storing them in a map so we can add pileup later
        for(EEDigiCollection::const_iterator it  = EEDigis->begin(); 
        it != EEDigis->end(); ++it) {
 
      EEDigiStorage_.insert(EEDigiMap::value_type( ( it->id() ), *it ));
 #ifdef DEBUG     
      LogDebug("DataMixingEMDigiWorker") << "processed EEDigi with rawId: "
                       << it->id().rawId() << "\n"
                       << " digi energy: " << it->energy();
 #endif
 
        }
      }
    // ES next
 
    Handle< ESDigiCollection > pESDigis;
 
    const ESDigiCollection*  ESDigis = 0;
 
    
    if(e.getByLabel( ESProducerSig_, pESDigis) ){
      ESDigis = pESDigis.product(); // get a ptr to the product
 #ifdef DEBUG
      LogDebug("DataMixingEMDigiWorker") << "total # ES digis: " << ESDigis->size();
 #endif
    } 
 
  
    if (ESDigis)
      {
 
        // loop over digis, storing them in a map so we can add pileup later
        for(ESDigiCollection::const_iterator it  = ESDigis->begin(); 
        it != ESDigis->end(); ++it) {
 
      ESDigiStorage_.insert(ESDigiMap::value_type( ( it->id() ), *it ));
      
 #ifdef DEBUG     
          LogDebug("DataMixingEMDigiWorker") << "processed ESDigi with rawId: "
                       << it->id().rawId() << "\n"
                       << " digi energy: " << it->energy();
 #endif
 
        }
      }
     
   } // end of addEMSignals

const std::vector< float > DataMixingEMDigiWorker::GetGainRatios	(	const edm::EventSetup &	ES,
		const DetId &	detid
	)

private

retrieve gain ratios for that detid [0]=g12, [1]=g6, [2]=g12

Definition at line 625 of file DataMixingEMDigiWorker.cc.

References cond::rpcobgas::detid, EcalMGPAGainRatio::gain12Over6(), EcalMGPAGainRatio::gain6Over1(), and edm::EventSetup::get().

Referenced by putEM().

                                                                                                            {
 
     std::vector<float> gainRatios(3);
     // get gain ratios  
     edm::ESHandle<EcalGainRatios> grHandle;
     ES.get<EcalGainRatiosRcd>().get(grHandle);
     EcalMGPAGainRatio theRatio= (*grHandle)[detid];
     
     
     gainRatios[0] = 1.;
     gainRatios[1] = theRatio.gain12Over6();
     gainRatios[2] = theRatio.gain6Over1()  * theRatio.gain12Over6();
 
     return gainRatios;
   }

const std::vector< float > DataMixingEMDigiWorker::GetPedestals	(	const edm::EventSetup &	ES,
		const DetId &	detid
	)

private

retrieve pedestals for that detid [0]=g12, [1]=g6, [2]=g12

Definition at line 594 of file DataMixingEMDigiWorker.cc.

References EcalCondObjectContainer< T >::end(), EcalCondObjectContainer< T >::find(), edm::EventSetup::get(), and edm::ESHandle< class >::product().

Referenced by putEM().

                                                                                                            {
     
     std::vector<float> pedeStals(3);
 
     // get pedestals
     edm::ESHandle<EcalPedestals> pedHandle;
     ES.get<EcalPedestalsRcd>().get( pedHandle );
     
     
     const EcalPedestalsMap & pedMap = pedHandle.product()->getMap(); // map of pedestals
     EcalPedestalsMapIterator pedIter; // pedestal iterator
     EcalPedestals::Item aped; // pedestal object for a single xtal
     
     
     pedIter = pedMap.find(detid);
     if( pedIter != pedMap.end() ) {
       aped = (*pedIter);
       pedeStals[0] = aped.mean_x12;
       pedeStals[1] = aped.mean_x6;
       pedeStals[2] = aped.mean_x1;
     } else {
       edm::LogError("DataMixingMissingInput") << "Cannot find pedestals";  
       pedeStals[0] = 0;
       pedeStals[1] = 0;
       pedeStals[2] = 0;
     }
     
     
     return pedeStals;
   }

void DataMixingEMDigiWorker::putEM	(	edm::Event &	e,
		const edm::EventSetup &	ES
	)

Definition at line 266 of file DataMixingEMDigiWorker.cc.

References ecalMGPA::adc(), edm::DataFrame::begin(), runTheMatrix::data, EBDigiCollectionDM_, EBDigiStorage_, EEDigiCollectionDM_, EEDigiStorage_, ESDigiCollectionDM_, ESDigiStorage_, EcalDataFrame::frame(), ecalMGPA::gainId(), GetGainRatios(), GetPedestals(), max(), min, edm::Event::put(), ESDataFrame::setSample(), EcalDataFrame::setSample(), ESDataFrame::size(), EcalDataFrame::size(), and findQualityFiles::size.

Referenced by edm::DataMixingModule::put().

                                                                          {
 
     // collection of digis to put in the event
     std::auto_ptr< EBDigiCollection > EBdigis( new EBDigiCollection );
     std::auto_ptr< EEDigiCollection > EEdigis( new EEDigiCollection );
     std::auto_ptr< ESDigiCollection > ESdigis( new ESDigiCollection );
 
 
     // loop over the maps we have, re-making individual hits or digis if necessary.
     DetId formerID = 0;
     DetId currentID;
 
     EBDataFrame EB_old;
 
     int gain_new = 0;
     int gain_old = 0;
     int gain_consensus = 0;
     int adc_new;
     int adc_old;
     int adc_sum;
     uint16_t data;
 
     // EB first...
 
     EBDigiMap::const_iterator iEBchk;
 
     
 
     for(EBDigiMap::const_iterator iEB  = EBDigiStorage_.begin();
     iEB != EBDigiStorage_.end(); iEB++) {
 
       currentID = iEB->first; 
 
       if (currentID == formerID) { // we have to add these digis together
     /*  
     cout<< " Adding signals " << EBDetId(currentID).ieta() << " " 
                               << EBDetId(currentID).iphi() << std::endl;
 
     cout << 1 << " " ; 
     for (int i=0; i<10;++i)  std::cout << EB_old[i].adc()<< "["<<EB_old[i].gainId()<< "] " ; std::cout << std::endl;
  
     cout << 2 << " " ; 
     for (int i=0; i<10;++i)  std::cout << (iEB->second)[i].adc()<< "["<<(iEB->second)[i].gainId()<< "] " ; std::cout << std::endl;
     */
     //loop over digi samples in each DataFrame
     unsigned int sizenew = (iEB->second).size();
     unsigned int sizeold = EB_old.size();
 
     unsigned int max_samp = std::max(sizenew, sizeold);
 
     // samples from different events can be of different lengths - sum all
     // that overlap.
     // check to see if gains match - if not, scale smaller cell down.
 
     int sw_gain_consensus=0;
 
 
     for(unsigned int isamp = 0; isamp<max_samp; isamp++) {
       if(isamp < sizenew) {
         gain_new = (iEB->second)[isamp].gainId();
         adc_new = (iEB->second)[isamp].adc();
       }
       else { adc_new = 0;}
 
       if(isamp < sizeold) {
           gain_old = EB_old[isamp].gainId();
           adc_old = EB_old[isamp].adc();
       }
       else { adc_old = 0;}
 
       const std::vector<float> pedeStals = GetPedestals(ES,currentID);
       const std::vector<float> gainRatios = GetGainRatios(ES,currentID);
 
       if(adc_new>0 && adc_old>0) {
         if(gain_old == gain_new) {  // we're happy - easy case
           gain_consensus = gain_old;
         }
         else {  // lower gain sample has more energy
                           
 
           if(gain_old < gain_new) { // old has higher gain than new, scale to lower gain
         
     
         float ratio = gainRatios[gain_new-1]/gainRatios[gain_old-1];
         adc_old = (int) round ((adc_old - pedeStals[gain_old-1]) / ratio + pedeStals[gain_new-1] );  
         gain_consensus = gain_new;
           }
           else { // scale to old (lower) gain
         float ratio = gainRatios[gain_old-1]/gainRatios[gain_new-1];
         adc_new = (int) round ( (adc_new - pedeStals[gain_new-1]) / ratio+ pedeStals[gain_old-1] );
         gain_consensus = gain_old;
           } 
         }
       }
 
      
       // add values, but don't count pedestals twice
       adc_sum = adc_new + adc_old - (int) round (pedeStals[gain_consensus-1]);
 
 
       // if we are now saturating that gain, switch to the next
       if (adc_sum> 4096) {
         if (gain_consensus<3){
 
           double ratio = gainRatios[gain_consensus]/gainRatios[gain_consensus-1];
           adc_sum = (int) round ((adc_sum - pedeStals[gain_consensus-1])/ ratio + pedeStals[gain_consensus]  )  ;
           sw_gain_consensus=++gain_consensus;         
         }
         else adc_sum = 4096;
         
       } 
 
       // furthermore, make sure we don't decrease our gain once we've switched up
       // in case go back 
       if (gain_consensus<sw_gain_consensus){
 
         double ratio = gainRatios[sw_gain_consensus-1]/gainRatios[gain_consensus-1];
         adc_sum = (int) round((adc_sum - pedeStals[gain_consensus-1] )/ratio + pedeStals[sw_gain_consensus-1]);
         gain_consensus = sw_gain_consensus;
       }
 
       EcalMGPASample sample(adc_sum, gain_consensus);
       EB_old.setSample(isamp,sample);  // overwrite old sample, adding new info
     } // for sample
 
 
       } // if current = former
       else {
       if(formerID>0) {
         EBdigis->push_back( formerID, EB_old.frame().begin() );
       }
       //save pointers for next iteration
       formerID = currentID;
       EB_old = iEB->second;
 
       }
 
 
       iEBchk = iEB;
       if((++iEBchk) == EBDigiStorage_.end()) {  //make sure not to lose the last one
         EBdigis->push_back( currentID, (iEB->second).frame().begin()) ;
       }
     }
 
     // EE next...
 
     formerID = 0;
     EEDataFrame EE_old;
 
     EEDigiMap::const_iterator iEEchk;
 
     for(EEDigiMap::const_iterator iEE  = EEDigiStorage_.begin();
     iEE != EEDigiStorage_.end(); iEE++) {
 
       currentID = iEE->first; 
 
       if (currentID == formerID) { // we have to add these digis together
 
     //loop over digi samples in each DataFrame
     unsigned int sizenew = (iEE->second).size();
     unsigned int sizeold = EE_old.size();
 
     unsigned int max_samp = std::max(sizenew, sizeold);
 
     // samples from different events can be of different lengths - sum all
     // that overlap.
     // check to see if gains match - if not, scale smaller cell down.
 
     for(unsigned int isamp = 0; isamp<max_samp; isamp++) {
       if(isamp < sizenew) {
         gain_new = (iEE->second)[isamp].gainId();
         adc_new = (iEE->second)[isamp].adc();
       }
       else { adc_new = 0;}
 
       if(isamp < sizeold) {
           gain_old = EE_old[isamp].gainId();
           adc_old = EE_old[isamp].adc();
       }
       else { adc_old = 0;}
 
       const std::vector<float> pedeStals = GetPedestals(ES,currentID);
       const std::vector<float> gainRatios = GetGainRatios(ES,currentID);
 
       if(adc_new>0 && adc_old>0) {
         if(gain_old == gain_new) {  // we're happy - easy case
           gain_consensus = gain_old;
         }
         else {  // lower gain sample has more energy
 
           if(gain_old < gain_new) { // old has higher gain than new, scale to lower gain
         
         
         float ratio = gainRatios[gain_new-1]/gainRatios[gain_old-1];
         adc_old = (int) round ((adc_old - pedeStals[gain_old-1]) / ratio + pedeStals[gain_new-1] );  
         gain_consensus = gain_new;
           }
           else { // scale to old (lower) gain
         float ratio = gainRatios[gain_old-1]/gainRatios[gain_new-1];
         adc_new = (int) round ( (adc_new - pedeStals[gain_new-1]) / ratio+ pedeStals[gain_old-1] );
         gain_consensus = gain_old;
           } 
         }
         
           }
          
 
       // add values
       adc_sum = adc_new + adc_old;
       
       // if the sum saturates this gain, switch
       if (adc_sum> 4096) {
         if (gain_consensus<3){
           
           double ratio = gainRatios[gain_consensus]/gainRatios[gain_consensus-1];
           adc_sum = (int) round ((adc_sum - pedeStals[gain_consensus-1])/ ratio + pedeStals[gain_consensus]  )  ;
           ++gain_consensus;
         }
         else adc_sum = 4096;
         
       } 
       
       EcalMGPASample sample(adc_sum, gain_consensus);
       EE_old.setSample(isamp,sample);
     }
 
       }
       else {
       if(formerID>0) {
         EEdigis->push_back(formerID, EE_old.frame().begin() );
          
       }
       //save pointers for next iteration
       formerID = currentID;
       EE_old = iEE->second;
       }
      
       iEEchk = iEE;
       if((++iEEchk) == EEDigiStorage_.end()) {  //make sure not to lose the last one
         EEdigis->push_back(currentID, (iEE->second).frame().begin());
       }
     }
    
 
     // ES next...
 
     formerID = 0;
     ESDataFrame ES_old;
 
     ESDigiMap::const_iterator iESchk;
 
     for(ESDigiMap::const_iterator iES  = ESDigiStorage_.begin();
     iES != ESDigiStorage_.end(); iES++) {
 
       currentID = iES->first; 
 
       if (currentID == formerID) { // we have to add these digis together
 
     //loop over digi samples in each DataFrame
     unsigned int sizenew = (iES->second).size();
     unsigned int sizeold = ES_old.size();
     uint16_t rawdat = 0;
     unsigned int max_samp = std::max(sizenew, sizeold);
 
     // samples from different events can be of different lengths - sum all
     // that overlap.
     // check to see if gains match - if not, scale smaller cell down.
 
     for(unsigned int isamp = 0; isamp<max_samp; isamp++) {
       if(isamp < sizenew) {
         adc_new = (iES->second)[isamp].adc();
         rawdat = (iES->second)[isamp].raw();
       }
       else { adc_new = 0;}
 
       if(isamp < sizeold) {
           adc_old = ES_old[isamp].adc();
           rawdat = ES_old[isamp].raw();
       }
       else { adc_old = 0;}
 
       // add values
       adc_sum = adc_new + adc_old;
       // make data word of gain, rawdata
       adc_sum = std::min(adc_sum,4095); //first 12 bits of (uint)
       data = adc_sum+(rawdat&0xF000); // data is 14 bit word with gain as MSBs
       ES_old.setSample(isamp,data);
     }
 
       }
       else {
       if(formerID>0) {
         ESdigis->push_back(ES_old);
       }
       //save pointers for next iteration
       formerID = currentID;
       ES_old = iES->second;
       }
 
       iESchk = iES;
       if((++iESchk) == ESDigiStorage_.end()) {  //make sure not to lose the last one
     ESdigis->push_back(iES->second);
     //  ESDataFrame df( (*ESdigis)->back() );
     //for(int isamp=0; isamp<(iES->second).size(); isamp++) {
     //  df.setSample(isamp,(iES->second).data[isamp]);
     //  }
       }
     }
 
 
     // done merging
 
     // put the collection of reconstructed hits in the event   
     LogInfo("DataMixingEMDigiWorker") << "total # EB Merged digis: " << EBdigis->size() ;
     LogInfo("DataMixingEMDigiWorker") << "total # EE Merged digis: " << EEdigis->size() ;
     LogInfo("DataMixingEMDigiWorker") << "total # ES Merged digis: " << ESdigis->size() ;
 
     e.put( EBdigis, EBDigiCollectionDM_ );
     e.put( EEdigis, EEDigiCollectionDM_ );
     e.put( ESdigis, ESDigiCollectionDM_ );
     
     // clear local storage after this event
 
     EBDigiStorage_.clear();
     EEDigiStorage_.clear();
     ESDigiStorage_.clear();
 
   }