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// $Id: FillerConversions.cc,v 1.10 2008/11/03 18:11:10 bendavid Exp $
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#include "MitProd/TreeFiller/interface/FillerConversions.h"
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#include "FWCore/MessageLogger/interface/MessageLogger.h"
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#include "DataFormats/Common/interface/Handle.h"
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#include "DataFormats/Common/interface/RefToPtr.h"
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#include "MitAna/DataTree/interface/Names.h"
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using namespace std;
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using namespace edm;
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using namespace mithep;
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//--------------------------------------------------------------------------------------------------
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FillerConversions::FillerConversions(const ParameterSet &cfg, bool active) :
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BaseFiller(cfg,"Conversions",active),
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edmName_(Conf().getUntrackedParameter<string>("edmName","conversions")),
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mitName_(Conf().getUntrackedParameter<string>("mitName","Conversions")),
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convElectronMapName_(Conf().getUntrackedParameter<string>("convElectronMapName","")),
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conversionMapName_(Conf().getUntrackedParameter<string>("conversionMapName",
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Form("%sMapName",mitName_.c_str()))),
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convElectronMap_(0),
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conversions_(new mithep::ConversionArr(16)),
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conversionMap_(new mithep::ConversionMap)
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{
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// Constructor.
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}
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//--------------------------------------------------------------------------------------------------
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FillerConversions::~FillerConversions()
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{
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// Destructor.
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delete conversions_;
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delete conversionMap_;
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}
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//--------------------------------------------------------------------------------------------------
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void FillerConversions::BookDataBlock(TreeWriter &tws)
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{
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// Add conversions to tree. Publish and get our objects.
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tws.AddBranch(mitName_.c_str(),&conversions_);
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if (!convElectronMapName_.empty())
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OS()->add(conversionMap_,conversionMapName_.c_str());
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convElectronMap_ = OS()->get<ConversionElectronMap>(convElectronMapName_.c_str());
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}
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//--------------------------------------------------------------------------------------------------
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void FillerConversions::FillDataBlock(const edm::Event &event,
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const edm::EventSetup &setup)
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{
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// Fill conversions data structure and maps.
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conversions_->Delete();
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conversionMap_->Reset();
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Handle<reco::ConversionCollection> hConversionProduct;
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GetProduct(edmName_, hConversionProduct, event);
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conversionMap_->SetEdmProductId(hConversionProduct.id().id());
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const reco::ConversionCollection inConversions = *(hConversionProduct.product());
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for (reco::ConversionCollection::const_iterator inConversion = inConversions.begin();
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inConversion != inConversions.end(); ++inConversion) {
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mithep::Conversion *outConversion = conversions_->Allocate();
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new (outConversion) mithep::Conversion(inConversion->conversionVertex().x(),
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inConversion->conversionVertex().y(),
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inConversion->conversionVertex().z(),
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inConversion->conversionVertex().xError(),
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inConversion->conversionVertex().yError(),
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inConversion->conversionVertex().zError());
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outConversion->DecayVertex().SetChi2(inConversion->conversionVertex().chi2());
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outConversion->DecayVertex().SetNdof((Int_t)inConversion->conversionVertex().ndof());
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outConversion->SetDCotTheta(inConversion->pairCotThetaSeparation());
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outConversion->SetEOverP(inConversion->EoverP());
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outConversion->SetPairMass(inConversion->pairInvariantMass());
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outConversion->SetPairMomentum(inConversion->pairMomentum().x(),
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inConversion->pairMomentum().y(),
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inConversion->pairMomentum().z());
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if (convElectronMap_) {
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std::vector<reco::TrackRef> trackRefs = inConversion->tracks();
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for (std::vector<reco::TrackRef>::const_iterator trackRef = trackRefs.begin();
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trackRef != trackRefs.end(); ++trackRef) {
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outConversion->AddDaughter(convElectronMap_->GetMit(refToPtr(*trackRef)));
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}
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}
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reco::ConversionRef theRef(hConversionProduct, inConversion-inConversions.begin());
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conversionMap_->Add(theRef, outConversion);
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}
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conversions_->Trim();
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}
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