JetAssociationProducers/src/JetTracksAssociatorAtVertex.cc

0001 // \class JetTracksAssociatorAtVertex JetTracksAssociatorAtVertex.cc
0002 //
0003 // Original Author:  Andrea Rizzi
0004 //         Created:  Wed Apr 12 11:12:49 CEST 2006
0005 // Accommodated for Jet Package by: Fedor Ratnikov Jul. 30, 2007
0006 //
0007 #include "FWCore/MessageLogger/interface/MessageLogger.h"
0008
0009 // user include files
0010 #include "FWCore/Framework/interface/Event.h"
0011 #include "DataFormats/Common/interface/View.h"
0012 #include "DataFormats/JetReco/interface/Jet.h"
0013 #include "DataFormats/TrackReco/interface/Track.h"
0014 #include "DataFormats/JetReco/interface/JetTracksAssociation.h"
0015
0016 #include "JetTracksAssociatorAtVertex.h"
0017
0018 JetTracksAssociatorAtVertex::JetTracksAssociatorAtVertex(const edm::ParameterSet& fConfig)
0019     : mJets{consumes<edm::View<reco::Jet> >(fConfig.getParameter<edm::InputTag>("jets"))},
0020       mTracks{consumes<reco::TrackCollection>(fConfig.getParameter<edm::InputTag>("tracks"))},
0021       mAssociator(fConfig.getParameter<double>("coneSize")),
0022       mAssociatorAssigned(fConfig.getParameter<double>("coneSize")),
0023       useAssigned(fConfig.getParameter<bool>("useAssigned")),
0024       pvSrc() {
0025   if (useAssigned) {
0026     pvSrc = consumes<reco::VertexCollection>(fConfig.getParameter<edm::InputTag>("pvSrc"));
0027   }
0028   produces<reco::JetTracksAssociation::Container>();
0029 }
0030
0031 void JetTracksAssociatorAtVertex::fillDescriptions(edm::ConfigurationDescriptions& descriptions) {
0032   edm::ParameterSetDescription desc;
0033   desc.add<edm::InputTag>("jets", edm::InputTag(""));
0034   desc.add<edm::InputTag>("tracks", edm::InputTag("generalTracks"));
0035   desc.add<double>("coneSize", 0.4);
0036   desc.add<bool>("useAssigned", false);
0037   desc.add<edm::InputTag>("pvSrc", edm::InputTag("offlinePrimaryVertices"));
0038   descriptions.addWithDefaultLabel(desc);
0039 }
0040
0041 void JetTracksAssociatorAtVertex::produce(edm::Event& fEvent, const edm::EventSetup& fSetup) {
0042   edm::Handle<edm::View<reco::Jet> > jets_h;
0043   fEvent.getByToken(mJets, jets_h);
0044   edm::Handle<reco::TrackCollection> tracks_h;
0045   fEvent.getByToken(mTracks, tracks_h);
0046
0047   auto jetTracks = std::make_unique<reco::JetTracksAssociation::Container>(reco::JetRefBaseProd(jets_h));
0048
0049   // format inputs
0050   std::vector<edm::RefToBase<reco::Jet> > allJets;
0051   allJets.reserve(jets_h->size());
0052   for (unsigned i = 0; i < jets_h->size(); ++i)
0053     allJets.push_back(jets_h->refAt(i));
0054   std::vector<reco::TrackRef> allTracks;
0055   allTracks.reserve(tracks_h->size());
0056   // run algo
0057   for (unsigned i = 0; i < tracks_h->size(); ++i) {
0058     allTracks.push_back(reco::TrackRef(tracks_h, i));
0059   }
0060   if (!useAssigned) {
0061     mAssociator.produce(&*jetTracks, allJets, allTracks);
0062   } else {
0063     edm::Handle<reco::VertexCollection> pvHandle;
0064     fEvent.getByToken(pvSrc, pvHandle);
0065     const reco::VertexCollection& vertices = *pvHandle.product();
0066     mAssociatorAssigned.produce(&*jetTracks, allJets, allTracks, vertices);
0067   }
0068
0069   // store output
0070   fEvent.put(std::move(jetTracks));
0071 }