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// system include files
#include <memory>
// user include files
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/stream/EDProducer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "DataFormats/Candidate/interface/VertexCompositeCandidate.h"
#include "DataFormats/RecoCandidate/interface/RecoChargedCandidate.h"
#include "DataFormats/VertexReco/interface/Vertex.h"
#include "DataFormats/VertexReco/interface/VertexFwd.h"
//
// class declaration
//
namespace {
const float dummy = -9.;
const GlobalPoint dummyGP(dummy, dummy, 0.);
} //end anonymous namespace
class VertexCompositeCandidateCollectionSelector : public edm::stream::EDProducer<> {
public:
explicit VertexCompositeCandidateCollectionSelector(const edm::ParameterSet&);
static void fillDescriptions(edm::ConfigurationDescriptions& descriptions);
private:
void produce(edm::Event&, const edm::EventSetup&) override;
// ----------member data ---------------------------
edm::EDGetTokenT<reco::VertexCompositeCandidateCollection> v0Token_;
edm::EDGetTokenT<reco::BeamSpot> bsToken_;
edm::EDGetTokenT<reco::VertexCollection> pvToken_;
int pvNDOF_;
std::string label_;
// list of variables for the selection
float lxyCUT_;
float lxyWRTbsCUT_;
bool debug_;
};
//
// constants, enums and typedefs
//
//
// static data member definitions
//
//
// constructors and destructor
//
VertexCompositeCandidateCollectionSelector::VertexCompositeCandidateCollectionSelector(const edm::ParameterSet& iConfig)
: v0Token_(consumes<reco::VertexCompositeCandidateCollection>(iConfig.getParameter<edm::InputTag>("v0"))),
bsToken_(consumes<reco::BeamSpot>(iConfig.getParameter<edm::InputTag>("beamSpot"))),
pvToken_(consumes<reco::VertexCollection>(iConfig.getParameter<edm::InputTag>("primaryVertex"))),
pvNDOF_(iConfig.getParameter<int>("pvNDOF")),
label_(iConfig.getParameter<edm::InputTag>("v0").instance()),
lxyCUT_(iConfig.getParameter<double>("lxyCUT")),
lxyWRTbsCUT_(iConfig.getParameter<double>("lxyWRTbsCUT")),
debug_(iConfig.getUntrackedParameter<bool>("debug")) {
if (debug_)
std::cout << "VertexCompositeCandidateCollectionSelector::VertexCompositeCandidateCollectionSelector" << std::endl;
// product
produces<reco::VertexCompositeCandidateCollection>();
//now do what ever other initialization is needed
}
//
// member functions
//
// ------------ method called to produce the data ------------
void VertexCompositeCandidateCollectionSelector::produce(edm::Event& iEvent, const edm::EventSetup& iSetup) {
using namespace edm;
if (debug_)
std::cout << "VertexCompositeCandidateCollectionSelector::produce" << std::endl;
// Create auto_ptr for each collection to be stored in the Event
auto result = std::make_unique<reco::VertexCompositeCandidateCollection>();
edm::Handle<reco::BeamSpot> beamspotHandle;
iEvent.getByToken(bsToken_, beamspotHandle);
reco::BeamSpot const* bs = nullptr;
if (beamspotHandle.isValid())
bs = &(*beamspotHandle);
edm::Handle<reco::VertexCollection> pvHandle;
iEvent.getByToken(pvToken_, pvHandle);
reco::Vertex const* pv = nullptr;
if (pvHandle.isValid()) {
pv = &pvHandle->front();
//--- pv fake (the pv collection should have size==1 and the pv==beam spot)
if (pv->isFake() ||
pv->tracksSize() == 0
// definition of goodOfflinePrimaryVertex
|| pv->ndof() < pvNDOF_ || pv->z() > 24.)
pv = nullptr;
}
edm::Handle<reco::VertexCompositeCandidateCollection> v0Handle;
iEvent.getByToken(v0Token_, v0Handle);
int n = (v0Handle.isValid() ? v0Handle->size() : -1);
if (debug_)
std::cout << "n: " << n << std::endl;
if (n > 0) {
auto const& v0s = *v0Handle.product();
for (auto const& v0 : v0s) {
GlobalPoint displacementFromPV2D =
(pv == nullptr ? dummyGP : GlobalPoint((pv->x() - v0.vx()), (pv->y() - v0.vy()), 0.));
GlobalPoint displacementFromBS2D =
(bs == nullptr ? dummyGP : GlobalPoint(v0.vx() - bs->x(v0.vz()), v0.vy() - bs->y(v0.vz()), 0.));
float abslxy = (pv == nullptr ? dummy : displacementFromPV2D.perp());
float abslxyWRTbs = (bs == nullptr ? dummy : displacementFromBS2D.perp());
if (debug_)
std::cout << "abslxy: " << abslxy << " w.r.t. " << lxyCUT_ << " ==> " << (abslxy >= lxyCUT_ ? "OK" : "KO")
<< std::endl;
if (debug_)
std::cout << "abslxyWRTbs: " << abslxyWRTbs << " w.r.t. " << lxyWRTbsCUT_ << " ==> "
<< (abslxyWRTbs >= lxyWRTbsCUT_ ? "OK" : "KO") << std::endl;
if (abslxy < lxyCUT_)
continue;
if (abslxyWRTbs < lxyWRTbsCUT_)
continue;
result->push_back(v0);
}
}
if (debug_)
std::cout << "result: " << result->size() << std::endl;
// put into the Event
// Write the collections to the Event
result->shrink_to_fit();
iEvent.put(std::move(result));
}
// ------------ method fills 'descriptions' with the allowed parameters for the module ------------
void VertexCompositeCandidateCollectionSelector::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.add<edm::InputTag>("v0");
desc.add<edm::InputTag>("beamSpot");
desc.add<edm::InputTag>("primaryVertex");
desc.add<int>("pvNDOF");
desc.add<double>("lxyCUT", 16.); // cm (2016 pixel layer3:10.2 cm ; 2017 pixel layer4: 16.0 cm)
desc.add<double>("lxyWRTbsCUT", 0.); // cm
desc.addUntracked<bool>("debug", false);
descriptions.add("VertexCompositeCandidateCollectionSelector", desc);
}
//define this as a plug-in
DEFINE_FWK_MODULE(VertexCompositeCandidateCollectionSelector);
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