CSCOverlapsBeamSplashCut.cc

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// -*- C++ -*-
//
// Package:    CSCOverlapsBeamSplashCut
// Class:      CSCOverlapsBeamSplashCut
// 
//
// Original Author:  Jim Pivarski
//         Created:  Sat Nov 21 21:18:04 CET 2009
//

// system include files
#include <memory>

// user include files
#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/Framework/interface/MakerMacros.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"

// references
#include "DataFormats/CSCRecHit/interface/CSCSegmentCollection.h"
#include "FWCore/ServiceRegistry/interface/Service.h"
#include "CommonTools/UtilAlgos/interface/TFileService.h"
#include "TH1F.h"

//
// class decleration
//

class CSCOverlapsBeamSplashCut : public edm::EDFilter {
   public:
      explicit CSCOverlapsBeamSplashCut(const edm::ParameterSet&);
      ~CSCOverlapsBeamSplashCut();

   private:
      virtual void beginJob() ;
      virtual bool filter(edm::Event&, const edm::EventSetup&);
      virtual void endJob() ;
      
      // ----------member data ---------------------------
      edm::InputTag m_src;
      int m_maxSegments;
      TH1F *m_numSegments;
};

//
// constants, enums and typedefs
//

//
// static data member definitions
//

//
// constructors and destructor
//
CSCOverlapsBeamSplashCut::CSCOverlapsBeamSplashCut(const edm::ParameterSet& iConfig)
   : m_src(iConfig.getParameter<edm::InputTag>("src"))
   , m_maxSegments(iConfig.getParameter<int>("maxSegments"))
{
   edm::Service<TFileService> tFileService;
   m_numSegments = tFileService->make<TH1F>("numSegments", "", 201, -0.5, 200.5);
}


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


//
// member functions
//

// ------------ method called to produce the data  ------------
bool
CSCOverlapsBeamSplashCut::filter(edm::Event& iEvent, const edm::EventSetup& iSetup) {
   edm::Handle<CSCSegmentCollection> cscSegments;
   iEvent.getByLabel(m_src, cscSegments);

   m_numSegments->Fill(cscSegments->size());

   if (m_maxSegments < 0) return true;

   else if (int(cscSegments->size()) <= m_maxSegments) return true;

   else return false;
}

// ------------ method called once each job just before starting event loop  ------------
void CSCOverlapsBeamSplashCut::beginJob() {}

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

//define this as a plug-in
DEFINE_FWK_MODULE(CSCOverlapsBeamSplashCut);