SiStripShotFilter.cc

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// -*- C++ -*-
//
// Class:      SiStripShotFilterPlugins
// 
/* Description: DQM source application to filter "shots" for SiStrip data
*/
//
//         Created:  2009/12/07
// $Id: SiStripShotFilter.cc,v 1.4 2010/04/21 10:40:20 amagnan Exp $
//

#include <sstream>
#include <fstream>
#include <iostream>
#include <memory>
#include <list>
#include <algorithm>
#include <cassert>

#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/EDFilter.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/ServiceRegistry/interface/Service.h"
#include "FWCore/Utilities/interface/Exception.h"

#include "DataFormats/FEDRawData/interface/FEDRawDataCollection.h"
#include "DataFormats/FEDRawData/interface/FEDRawData.h"
#include "DataFormats/FEDRawData/interface/FEDNumbering.h"
#include "DataFormats/SiStripCommon/interface/SiStripFedKey.h"
#include "DataFormats/DetId/interface/DetId.h"

#include "CondFormats/DataRecord/interface/SiStripFedCablingRcd.h"
#include "CondFormats/SiStripObjects/interface/SiStripFedCabling.h"

#include "EventFilter/SiStripRawToDigi/interface/SiStripFEDBuffer.h"

#include "DataFormats/Common/interface/DetSetVector.h"
#include "DataFormats/SiStripDigi/interface/SiStripDigi.h"

#include "DPGAnalysis/SiStripTools/interface/APVShotFinder.h"
#include "DPGAnalysis/SiStripTools/interface/APVShot.h"

//
// Class declaration
//

class SiStripShotFilter : public edm::EDFilter
{
 public:

  explicit SiStripShotFilter(const edm::ParameterSet&);
  ~SiStripShotFilter();
 private:

  virtual void beginJob();
  virtual bool filter(edm::Event&, const edm::EventSetup&);
  virtual void endJob();

  //update the cabling if necessary
  void updateCabling(const edm::EventSetup& eventSetup);

  //path to output file
  std::ofstream fOut_;
  std::string fOutPath_;
  //FED cabling
  uint32_t cablingCacheId_;
  const SiStripFedCabling* cabling_;

  edm::InputTag digicollection_;
  bool zs_;

};


//
// Constructors and destructor
//

SiStripShotFilter::SiStripShotFilter(const edm::ParameterSet& iConfig)
  : fOutPath_(iConfig.getUntrackedParameter<std::string>("OutputFilePath","shotChannels.dat")),
    cablingCacheId_(0),
    digicollection_(iConfig.getParameter<edm::InputTag>("DigiCollection")),
    zs_(iConfig.getUntrackedParameter<bool>("ZeroSuppressed",true))
 
{

}

SiStripShotFilter::~SiStripShotFilter()
{
}


//
// Member functions
//

// ------------ method called to for each event  ------------
bool
SiStripShotFilter::filter(edm::Event& iEvent, 
                 const edm::EventSetup& iSetup)
{

  //update cabling
  updateCabling(iSetup);
  
  //get digi data
  edm::Handle<edm::DetSetVector<SiStripDigi> > digis;
  iEvent.getByLabel(digicollection_,digis);

  // loop on detector with digis

  APVShotFinder apvsf(*digis,zs_);
  const std::vector<APVShot>& shots = apvsf.getShots();

  //loop on feds first: there should be only a small number of shots...
  //better to loop only once on all channels....
  //to be able to output both fed/ch and module/APV.

  unsigned int lShots = 0;

  for (unsigned int fedId = FEDNumbering::MINSiStripFEDID; 
       fedId <= FEDNumbering::MAXSiStripFEDID; 
       fedId++) {//loop over FED IDs

    for (unsigned int iCh = 0; 
     iCh < sistrip::FEDCH_PER_FED; 
     iCh++) {//loop on channels
      
      const FedChannelConnection & lConnection = cabling_->connection(fedId,iCh);

      uint32_t lDetId = lConnection.detId();
      short lAPVPair = lConnection.apvPairNumber();

      for(std::vector<APVShot>::const_iterator shot=shots.begin();shot!=shots.end();++shot) {//loop on shots

    if (shot->detId() == lDetId && 
        static_cast<short>(shot->apvNumber()/2.) == lAPVPair)
      {
        if(shot->isGenuine()) {//genuine shot
  
          fOut_ << fedId << " " << iCh << " " << shot->detId() << " " << shot->apvNumber() << std::endl;
          lShots++;
        }//genuine shot
        if (shot->apvNumber()%2==1) break;
      }
      }//loop on shots
    }//loop on channels
  }//loop on FEDs.

  if (lShots > 0) fOut_ << "### " << iEvent.id().event() << " " << lShots << std::endl;

  return lShots;

}//analyze method

// ------------ method called once each job just before starting event loop  ------------
void 
SiStripShotFilter::beginJob()
{
  fOut_.open(fOutPath_.c_str(),std::ios::out);
  if (!fOut_) std::cout << " WARNING ! Cannot open file " << fOutPath_ << " for writting. List of shot channels will not be saved." << std::endl;
}

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

  fOut_.close();

}

void SiStripShotFilter::updateCabling(const edm::EventSetup& eventSetup)
{
  uint32_t currentCacheId = eventSetup.get<SiStripFedCablingRcd>().cacheIdentifier();
  if (cablingCacheId_ != currentCacheId) {
    edm::ESHandle<SiStripFedCabling> cablingHandle;
    eventSetup.get<SiStripFedCablingRcd>().get(cablingHandle);
    cabling_ = cablingHandle.product();
    cablingCacheId_ = currentCacheId;
  }
}

#include "FWCore/Framework/interface/MakerMacros.h"
DEFINE_FWK_MODULE(SiStripShotFilter);