/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_5/src/RecoTracker/TrackProducer/plugins/ExtraFromSeeds.cc

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// -*- C++ -*-
//
// Package:    ExtraFromSeeds
// Class:      ExtraFromSeeds
// 
//
// Original Author:  Jean-Roch Vlimant,40 3-A28,+41227671209,
//         Created:  Fri Feb 17 12:03:11 CET 2012
// $Id: ExtraFromSeeds.cc,v 1.2 2013/02/27 13:28:54 muzaffar Exp $
//
//


// system include files
#include <memory>

#include "RecoTracker/TrackProducer/plugins/ExtraFromSeeds.h"


//
// constructors and destructor
//
ExtraFromSeeds::ExtraFromSeeds(const edm::ParameterSet& iConfig)
{
  tracks_=iConfig.getParameter<edm::InputTag>("tracks");
  produces<ExtremeLight>();
  produces<TrackingRecHitCollection>();
  
}


ExtraFromSeeds::~ExtraFromSeeds()
{
 
   // 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  ------------
void
ExtraFromSeeds::produce(edm::Event& iEvent, const edm::EventSetup& iSetup)
{

  // in
  edm::Handle<reco::TrackCollection> tracks;
  iEvent.getByLabel(tracks_,tracks);

  // out  
  std::auto_ptr<ExtremeLight> exxtralOut(new ExtremeLight());
  exxtralOut->resize(tracks->size());

  std::auto_ptr<TrackingRecHitCollection> hitOut(new TrackingRecHitCollection());
  TrackingRecHitRefProd rHits = iEvent.getRefBeforePut<TrackingRecHitCollection>();
  hitOut->reserve(3*tracks->size());

  for (unsigned int ie=0;ie!=tracks->size();++ie){
    const reco::Track & track = (*tracks)[ie];
    const reco::TrackExtra & extra = *track.extra();
    //only for high purity tracks
    if (!track.quality(reco::TrackBase::highPurity)) continue;

    TrajectorySeed::range seedRange=extra.seedRef()->recHits();
    TrajectorySeed::const_iterator seedHit;
    (*exxtralOut)[ie]=extra.seedRef()->nHits();
    for (seedHit=seedRange.first;seedHit!=seedRange.second;++seedHit){
      TrackingRecHit * hit = seedHit->clone();
      hitOut->push_back( hit );
    }

  }
  
  iEvent.put(exxtralOut);
  iEvent.put(hitOut);
}
// ------------ method called once each job just before starting event loop  ------------
void 
ExtraFromSeeds::beginJob()
{
}

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

// ------------ method fills 'descriptions' with the allowed parameters for the module  ------------
void
ExtraFromSeeds::fillDescriptions(edm::ConfigurationDescriptions& descriptions) {
  //The following says we do not know what parameters are allowed so do no validation
  // Please change this to state exactly what you do use, even if it is no parameters
  edm::ParameterSetDescription desc;
  desc.setUnknown();
  descriptions.addDefault(desc);
}