/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_7/src/DQM/SiStripCommon/src/APVShotFinder.cc

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#include <vector>
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "DQM/SiStripCommon/interface/APVShot.h"
#include "DataFormats/SiStripDigi/interface/SiStripDigi.h"
#include "DataFormats/Common/interface/DetSet.h"
#include "DataFormats/Common/interface/DetSetVector.h"
#include "DataFormats/DetId/interface/DetId.h"
#include "DQM/SiStripCommon/interface/APVShotFinder.h"

APVShotFinder::APVShotFinder(const bool zs):
  _zs(zs), _shots() { }

APVShotFinder::APVShotFinder(const edm::DetSet<SiStripDigi>& digis, const bool zs):
  _zs(zs), _shots() {

  computeShots(digis);

}

APVShotFinder::APVShotFinder(const edm::DetSetVector<SiStripDigi>& digicoll, const bool zs):
  _zs(zs), _shots() {

  computeShots(digicoll);

}

void APVShotFinder::computeShots(const edm::DetSet<SiStripDigi>& digis) {

  _shots.clear();
  addShots(digis);
  
}

void APVShotFinder::computeShots(const edm::DetSetVector<SiStripDigi>& digicoll) {

  _shots.clear();

   for(edm::DetSetVector<SiStripDigi>::const_iterator it = digicoll.begin();
       it!=digicoll.end();++it) {

     addShots(*it);
   }

}

void APVShotFinder::addShots(const edm::DetSet<SiStripDigi>& digis) {

  DetId detid(digis.detId());

  int laststrip = -1;
  int apv = -1;
  std::vector<SiStripDigi> temp;

  for(edm::DetSet<SiStripDigi>::const_iterator digi=digis.begin();digi!=digis.end();digi++) {

    if(!_zs || digi->adc()>0) {
      if(laststrip >= digi->strip()) edm::LogWarning("StripNotInOrder") << "Strips not in order in DetSet<SiStripDigi>";
      laststrip = digi->strip();
      
      int newapv = digi->strip()/128;
      if( newapv!=apv) {
        if(apv>=0) {
          if(temp.size() > 64) {
            APVShot shot(temp,detid,_zs);
            _shots.push_back(shot);
          }
          temp.clear();
        }
        apv = newapv;
      }
      
      temp.push_back(*digi);
    }
  }
  // last strip
  if(temp.size() > 64) {
    APVShot shot(temp,detid,_zs);
    _shots.push_back(shot);
  }
  temp.clear();
  
}

const std::vector<APVShot>& APVShotFinder::getShots() const { return _shots; }