/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_5/src/RecoMuon/CosmicMuonProducer/src/GlobalCosmicMuonProducer.cc

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#include "RecoMuon/CosmicMuonProducer/src/GlobalCosmicMuonProducer.h"

// system include files
#include <memory>

// user include files
#include "FWCore/Framework/interface/Frameworkfwd.h"

#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"

#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"

#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/MuonReco/interface/MuonTrackLinks.h"
#include "DataFormats/MuonReco/interface/MuonFwd.h"
#include "TrackingTools/PatternTools/interface/TrajTrackAssociation.h"

#include "RecoMuon/CosmicMuonProducer/interface/GlobalCosmicMuonTrajectoryBuilder.h"
#include "RecoMuon/TrackingTools/interface/MuonTrackFinder.h"
#include "RecoMuon/TrackingTools/interface/MuonTrackLoader.h"
#include "RecoMuon/TrackingTools/interface/MuonServiceProxy.h"

//
// constructors and destructor
//
GlobalCosmicMuonProducer::GlobalCosmicMuonProducer(const edm::ParameterSet& iConfig)
{

  edm::ParameterSet tbpar = iConfig.getParameter<edm::ParameterSet>("TrajectoryBuilderParameters");
  theTrackCollectionLabel = iConfig.getParameter<edm::InputTag>("MuonCollectionLabel");

  // service parameters
  edm::ParameterSet serviceParameters = iConfig.getParameter<edm::ParameterSet>("ServiceParameters");
  
  // TrackLoader parameters
  edm::ParameterSet trackLoaderParameters = iConfig.getParameter<edm::ParameterSet>("TrackLoaderParameters");
  
  // the services
  theService = new MuonServiceProxy(serviceParameters);
  
  theTrackFinder = new MuonTrackFinder(new GlobalCosmicMuonTrajectoryBuilder(tbpar,theService),
                                       new MuonTrackLoader(trackLoaderParameters, theService));

  produces<reco::TrackCollection>();
  produces<TrackingRecHitCollection>();
  produces<reco::TrackExtraCollection>();
  produces<std::vector<Trajectory> >();
  produces<TrajTrackAssociationCollection>();

  produces<reco::MuonTrackLinksCollection>();

}


GlobalCosmicMuonProducer::~GlobalCosmicMuonProducer()
{
  if (theService) delete theService;
  if (theTrackFinder) delete theTrackFinder;
}


// ------------ method called to produce the data  ------------
void
GlobalCosmicMuonProducer::produce(edm::Event& iEvent, const edm::EventSetup& iSetup)
{
  const std::string metname = "Muon|RecoMuon|GlobalCosmicMuonProducer";  
  LogTrace(metname)<<"Global Cosmic Muon Reconstruction started";  
  
  edm::Handle<reco::TrackCollection> cosMuons;
  iEvent.getByLabel(theTrackCollectionLabel,cosMuons);
  if (!cosMuons.isValid()) {
    LogTrace(metname)<< "Muon Track collection is invalid!!!";
    return;
  }
  
  // Update the services
  theService->update(iSetup);
  
  // Reconstruct the tracks in the tracker+muon system
  LogTrace(metname)<<"Track Reconstruction";

  std::vector<MuonTrajectoryBuilder::TrackCand> cosTrackCands;
  for ( unsigned int position = 0; position != cosMuons->size(); ++position ) {
    reco::TrackRef cosTrackRef(cosMuons,position);
    MuonTrajectoryBuilder::TrackCand cosCand = MuonTrajectoryBuilder::TrackCand((Trajectory*)(0),cosTrackRef);
    cosTrackCands.push_back(cosCand); 
  }
  theTrackFinder->reconstruct(cosTrackCands,iEvent);
  LogTrace(metname)<<"Event loaded";

}