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//
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// $Id: PATCleaner.cc,v 1.1.2.1 2009/01/14 17:27:56 gpetrucc Exp $
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//
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/**
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\class pat::PATCleaner PATCleaner.h "PhysicsTools/PatAlgos/interface/PATCleaner.h"
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\brief PAT Cleaner module for PAT Objects
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The same module is used for all collections.
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\author Giovanni Petrucciani
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\version $Id: PATCleaner.cc,v 1.1.2.1 2009/01/14 17:27:56 gpetrucc Exp $
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*/
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#include "FWCore/Framework/interface/EDProducer.h"
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#include "FWCore/Framework/interface/Event.h"
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#include "FWCore/ParameterSet/interface/ParameterSet.h"
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#include "FWCore/ParameterSet/interface/InputTag.h"
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#include "PhysicsTools/Utilities/interface/StringObjectFunction.h"
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#include "PhysicsTools/Utilities/interface/StringCutObjectSelector.h"
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#include "DataFormats/PatCandidates/interface/Electron.h"
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#include "DataFormats/PatCandidates/interface/Muon.h"
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#include "DataFormats/PatCandidates/interface/Tau.h"
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#include "DataFormats/PatCandidates/interface/Photon.h"
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#include "DataFormats/PatCandidates/interface/Jet.h"
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#include "DataFormats/PatCandidates/interface/MET.h"
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#include "DataFormats/PatCandidates/interface/GenericParticle.h"
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#include "DataFormats/PatCandidates/interface/PFParticle.h"
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#include "PhysicsTools/PatAlgos/interface/OverlapTest.h"
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#include <boost/ptr_container/ptr_vector.hpp>
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namespace pat {
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template<class PATObjType>
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class PATCleaner : public edm::EDProducer {
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public:
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explicit PATCleaner(const edm::ParameterSet & iConfig);
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virtual ~PATCleaner() {}
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virtual void produce(edm::Event & iEvent, const edm::EventSetup & iSetup);
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private:
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typedef StringCutObjectSelector<PATObjType> Selector;
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edm::InputTag src_;
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bool doPreselection_, doFinalCut_;
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Selector preselectionCut_;
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Selector finalCut_;
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typedef pat::helper::OverlapTest OverlapTest;
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// make a list of overlap tests (ptr_vector instead of std::vector because they're polymorphic)
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boost::ptr_vector<OverlapTest> overlapTests_;
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};
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} // namespace
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template <class PATObjType>
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pat::PATCleaner<PATObjType>::PATCleaner(const edm::ParameterSet & iConfig) :
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src_(iConfig.getParameter<edm::InputTag>("src")),
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preselectionCut_(iConfig.getParameter<std::string>("preselection")),
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finalCut_(iConfig.getParameter<std::string>("finalCut"))
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{
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// pick parameter set for overlaps
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edm::ParameterSet overlapPSet = iConfig.getParameter<edm::ParameterSet>("checkOverlaps");
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// get all the names of the tests (all nested PSets in this PSet)
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std::vector<std::string> overlapNames = overlapPSet.getParameterNamesForType<edm::ParameterSet>();
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// loop on them
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for (std::vector<std::string>::const_iterator itn = overlapNames.begin(); itn != overlapNames.end(); ++itn) {
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// retrieve configuration
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edm::ParameterSet cfg = overlapPSet.getParameter<edm::ParameterSet>(*itn);
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// skip empty parameter sets
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if (cfg.empty()) continue;
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// get the name of the algorithm to use
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std::string algorithm = cfg.getParameter<std::string>("algorithm");
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// create the appropriate OverlapTest
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if (algorithm == "byDeltaR") {
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overlapTests_.push_back(new pat::helper::BasicOverlapTest(*itn, cfg));
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} else if (algorithm == "bySuperClusterSeed") {
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overlapTests_.push_back(new pat::helper::OverlapBySuperClusterSeed(*itn, cfg));
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} else {
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throw cms::Exception("Configuration") << "PATCleaner for " << src_ << ": unsupported algorithm '" << algorithm << "'\n";
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}
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}
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produces<std::vector<PATObjType> >();
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}
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template <class PATObjType>
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void
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pat::PATCleaner<PATObjType>::produce(edm::Event & iEvent, const edm::EventSetup & iSetup) {
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using namespace edm;
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// Read the input. We use View<> in case the input happes to be something different than a std::vector<>
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Handle<View<PATObjType> > candidates;
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iEvent.getByLabel(src_, candidates);
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// Prepare a collection for the output
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std::auto_ptr< std::vector<PATObjType> > output(new std::vector<PATObjType>());
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// initialize the overlap tests
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for (boost::ptr_vector<OverlapTest>::iterator itov = overlapTests_.begin(), edov = overlapTests_.end(); itov != edov; ++itov) {
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itov->readInput(iEvent,iSetup);
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}
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for (typename View<PATObjType>::const_iterator it = candidates->begin(), ed = candidates->end(); it != ed; ++it) {
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// Apply a preselection to the inputs and copy them in the output
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if (!preselectionCut_(*it)) continue;
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// Add it to the list and take a reference to it, so it can be modified (e.g. to set the overlaps)
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// If at some point I'll decide to drop this item, I'll use pop_back to remove it
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output->push_back(*it);
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PATObjType &obj = output->back();
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// Look for overlaps
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bool badForOverlap = false;
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for (boost::ptr_vector<OverlapTest>::iterator itov = overlapTests_.begin(), edov = overlapTests_.end(); itov != edov; ++itov) {
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reco::CandidatePtrVector overlaps;
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bool hasOverlap = itov->fillOverlapsForItem(obj, overlaps);
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if (hasOverlap && itov->requireNoOvelaps()) {
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badForOverlap = true; // mark for discarding
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break; // no point in checking the others, as this item will be discarded
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}
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obj.setOverlaps(itov->name(), overlaps);
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}
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if (badForOverlap) { output->pop_back(); continue; }
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// Apply one final selection cut
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if (!finalCut_(obj)) output->pop_back();
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}
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iEvent.put(output);
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}
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#include "FWCore/Framework/interface/MakerMacros.h"
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namespace pat {
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typedef pat::PATCleaner<pat::Electron> PATElectronCleaner;
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typedef pat::PATCleaner<pat::Muon> PATMuonCleaner;
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typedef pat::PATCleaner<pat::Tau> PATTauCleaner;
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typedef pat::PATCleaner<pat::Photon> PATPhotonCleaner;
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typedef pat::PATCleaner<pat::Jet> PATJetCleaner;
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typedef pat::PATCleaner<pat::MET> PATMETCleaner;
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typedef pat::PATCleaner<pat::GenericParticle> PATGenericParticleCleaner;
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//typedef pat::PATCleaner<pat::PFParticle> PATPFParticleCleaner; // I don't think the PF folks need/want this
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// but technically it can work
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}
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using namespace pat;
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DEFINE_FWK_MODULE(PATElectronCleaner);
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DEFINE_FWK_MODULE(PATMuonCleaner);
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DEFINE_FWK_MODULE(PATTauCleaner);
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DEFINE_FWK_MODULE(PATPhotonCleaner);
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DEFINE_FWK_MODULE(PATJetCleaner);
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DEFINE_FWK_MODULE(PATMETCleaner);
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DEFINE_FWK_MODULE(PATGenericParticleCleaner);
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//DEFINE_FWK_MODULE(PATPFParticleCleaner);
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