GEMSegment/plugins/GEMSegmentProducer.cc

0001 /** \class GEMSegmentProducer derived by CSCSegmentProducer
0002  * Produces a collection of GEMSegment's in endcap muon GEMs.
0003  *
0004  * \author Piet Verwilligen
0005  */
0006
0007 #include "FWCore/Framework/interface/Frameworkfwd.h"
0008 #include "FWCore/Framework/interface/stream/EDProducer.h"
0009 #include "FWCore/Framework/interface/Event.h"
0010 #include "FWCore/Framework/interface/ESHandle.h"
0011 #include "FWCore/ParameterSet/interface/ParameterSet.h"
0012 #include "FWCore/Utilities/interface/InputTag.h"
0013 #include "FWCore/Utilities/interface/ESGetToken.h"
0014 #include "FWCore/MessageLogger/interface/MessageLogger.h"
0015
0016 #include "DataFormats/Common/interface/Handle.h"
0017 #include "DataFormats/GEMRecHit/interface/GEMRecHitCollection.h"
0018 #include "DataFormats/GEMRecHit/interface/GEMSegmentCollection.h"
0019 #include "DataFormats/GEMRecHit/interface/GEMSegment.h"
0020
0021 #include "RecoLocalMuon/GEMSegment/plugins/GEMSegmentBuilder.h"
0022 #include "Geometry/Records/interface/MuonGeometryRecord.h"
0023
0024 class GEMSegmentProducer : public edm::stream::EDProducer<> {
0025 public:
0026   /// Constructor
0027   explicit GEMSegmentProducer(const edm::ParameterSet&);
0028   /// Destructor
0029   ~GEMSegmentProducer() override {}
0030   /// Produce the GEMSegment collection
0031   void produce(edm::Event&, const edm::EventSetup&) override;
0032
0033 private:
0034   int iev;  // events through
0035   edm::EDGetTokenT<GEMRecHitCollection> theGEMRecHitToken;
0036   std::unique_ptr<GEMSegmentBuilder> segmentBuilder_;
0037   edm::ESGetToken<GEMGeometry, MuonGeometryRecord> gemGeomToken_;
0038 };
0039
0040 GEMSegmentProducer::GEMSegmentProducer(const edm::ParameterSet& ps) : iev(0) {
0041   theGEMRecHitToken = consumes<GEMRecHitCollection>(ps.getParameter<edm::InputTag>("gemRecHitLabel"));
0042   segmentBuilder_ = std::make_unique<GEMSegmentBuilder>(ps);  // pass on the Parameter Set
0043   gemGeomToken_ = esConsumes<GEMGeometry, MuonGeometryRecord>();
0044   // register what this produces
0045   produces<GEMSegmentCollection>();
0046 }
0047
0048 void GEMSegmentProducer::produce(edm::Event& ev, const edm::EventSetup& setup) {
0049   LogDebug("GEMSegmentProducer") << "start producing segments for " << ++iev << "th event with GEM data";
0050
0051   // find the geometry (& conditions?) for this event & cache it in the builder
0052   edm::ESHandle<GEMGeometry> gemg = setup.getHandle(gemGeomToken_);
0053   const GEMGeometry* mgeom = &*gemg;
0054   segmentBuilder_->setGeometry(mgeom);
0055
0056   // get the collection of GEMRecHit
0057   edm::Handle<GEMRecHitCollection> gemRecHits;
0058   ev.getByToken(theGEMRecHitToken, gemRecHits);
0059
0060   // create empty collection of Segments
0061   auto oc = std::make_unique<GEMSegmentCollection>();
0062
0063   // fill the collection
0064   segmentBuilder_->build(gemRecHits.product(), *oc);  //@@ FILL oc
0065
0066   // put collection in event
0067   ev.put(std::move(oc));
0068 }
0069
0070 #include "FWCore/Framework/interface/MakerMacros.h"
0071 DEFINE_FWK_MODULE(GEMSegmentProducer);