Inheritance diagram for GenParticlePruner:

Public Member Functions
	GenParticlePruner (const edm::ParameterSet &)

Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default

	EDProducer (const EDProducer &)=delete

bool	hasAbilityToProduceInBeginLumis () const final

bool	hasAbilityToProduceInBeginProcessBlocks () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndProcessBlocks () const final

bool	hasAbilityToProduceInEndRuns () const final

const EDProducer &	operator= (const EDProducer &)=delete

Private Member Functions
void	flagDaughters (const reco::GenParticle &, int)

void	flagMothers (const reco::GenParticle &, int)

void	getDaughterKeys (std::vector< size_t > &, std::vector< size_t > &, const reco::GenParticleRefVector &) const

void	getMotherKeys (std::vector< size_t > &, std::vector< size_t > &, const reco::GenParticleRefVector &) const

void	parse (const std::string &selection, helper::SelectCode &code, std::string &cut) const

void	produce (edm::Event &, const edm::EventSetup &) override

void	recursiveFlagDaughters (size_t, const reco::GenParticleCollection &, int, std::vector< size_t > &)

void	recursiveFlagMothers (size_t, const reco::GenParticleCollection &, int, std::vector< size_t > &)

Private Attributes
bool	firstEvent_

std::vector< int >	flags_

std::vector< size_t >	indices_

int	keepOrDropAll_

std::vector< std::pair< StringCutObjectSelector< reco::GenParticle >, helper::SelectCode > >	select_

std::vector< std::string >	selection_

edm::EDGetTokenT< reco::GenParticleCollection >	srcToken_

edm::ESGetToken< HepPDT::ParticleDataTable, edm::DefaultRecord >	tableToken_

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
using	CacheTypes = CacheContexts< T... >

using	GlobalCache = typename CacheTypes::GlobalCache

using	HasAbility = AbilityChecker< T... >

using	InputProcessBlockCache = typename CacheTypes::InputProcessBlockCache

using	LuminosityBlockCache = typename CacheTypes::LuminosityBlockCache

using	LuminosityBlockContext = LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >

using	LuminosityBlockSummaryCache = typename CacheTypes::LuminosityBlockSummaryCache

using	RunCache = typename CacheTypes::RunCache

using	RunContext = RunContextT< RunCache, GlobalCache >

using	RunSummaryCache = typename CacheTypes::RunSummaryCache

Detailed Description

Definition at line 23 of file GenParticlePruner.cc.

Constructor & Destructor Documentation

◆ GenParticlePruner()

GenParticlePruner::GenParticlePruner ( const edm::ParameterSet & cfg )

Definition at line 100 of file GenParticlePruner.cc.

     : firstEvent_(true),
       srcToken_(consumes<GenParticleCollection>(cfg.getParameter<InputTag>("src"))),
       tableToken_(esConsumes()),
       keepOrDropAll_(drop),
       selection_(cfg.getParameter<vector<string>>("select")) {
   using namespace ::helper;
   produces<GenParticleCollection>();
   produces<edm::Association<reco::GenParticleCollection>>();
 }

Member Function Documentation

◆ flagDaughters()

void GenParticlePruner::flagDaughters	(	const reco::GenParticle &	gen,
		int	keepOrDrop
	)

private

Definition at line 111 of file GenParticlePruner.cc.

References BPhysicsValidation_cfi::daughters, flags_, and mps_fire::i.

Referenced by produce().

                                                                                 {
   const GenParticleRefVector &daughters = gen.daughterRefVector();
   for (GenParticleRefVector::const_iterator i = daughters.begin(); i != daughters.end(); ++i)
     flags_[i->key()] = keepOrDrop;
 }

◆ flagMothers()

void GenParticlePruner::flagMothers	(	const reco::GenParticle &	gen,
		int	keepOrDrop
	)

private

Definition at line 117 of file GenParticlePruner.cc.

References edm::RefVector< C, T, F >::begin(), edm::RefVector< C, T, F >::end(), flags_, and mps_fire::i.

Referenced by produce().

                                                                               {
   const GenParticleRefVector &mothers = gen.motherRefVector();
   for (GenParticleRefVector::const_iterator i = mothers.begin(); i != mothers.end(); ++i)
     flags_[i->key()] = keepOrDrop;
 }

◆ getDaughterKeys()

void GenParticlePruner::getDaughterKeys	(	std::vector< size_t > &	daIndxs,
		std::vector< size_t > &	daNewIndxs,
		const reco::GenParticleRefVector &	daughters
	)		const

private

Definition at line 288 of file GenParticlePruner.cc.

References BPhysicsValidation_cfi::daughters, edm::RefVector< C, T, F >::empty(), spr::find(), flags_, heavyIonCSV_trainingSettings::idx, dqmiolumiharvest::j, and edm::Ref< C, T, F >::key().

Referenced by produce().

                                                                                      {
   for (GenParticleRefVector::const_iterator j = daughters.begin(); j != daughters.end(); ++j) {
     GenParticleRef dau = *j;
     if (find(daIndxs.begin(), daIndxs.end(), dau.key()) == daIndxs.end()) {
       daIndxs.push_back(dau.key());
       int idx = flags_[dau.key()];
       if (idx > 0) {
         daNewIndxs.push_back(idx);
       } else {
         const GenParticleRefVector &daus = dau->daughterRefVector();
         if (!daus.empty())
           getDaughterKeys(daIndxs, daNewIndxs, daus);
       }
     }
   }
 }

◆ getMotherKeys()

void GenParticlePruner::getMotherKeys	(	std::vector< size_t > &	moIndxs,
		std::vector< size_t > &	moNewIndxs,
		const reco::GenParticleRefVector &	mothers
	)		const

private

Definition at line 307 of file GenParticlePruner.cc.

References edm::RefVector< C, T, F >::begin(), edm::RefVector< C, T, F >::empty(), edm::RefVector< C, T, F >::end(), spr::find(), flags_, heavyIonCSV_trainingSettings::idx, dqmiolumiharvest::j, and edm::Ref< C, T, F >::key().

Referenced by produce().

                                                                                  {
   for (GenParticleRefVector::const_iterator j = mothers.begin(); j != mothers.end(); ++j) {
     GenParticleRef mom = *j;
     if (find(moIndxs.begin(), moIndxs.end(), mom.key()) == moIndxs.end()) {
       moIndxs.push_back(mom.key());
       int idx = flags_[mom.key()];
       if (idx >= 0) {
         moNewIndxs.push_back(idx);
       } else {
         const GenParticleRefVector &moms = mom->motherRefVector();
         if (!moms.empty())
           getMotherKeys(moIndxs, moNewIndxs, moms);
       }
     }
   }
 }

◆ parse()

void GenParticlePruner::parse	(	const std::string &	selection,
		helper::SelectCode &	code,
		std::string &	cut
	)		const

private

Definition at line 52 of file GenParticlePruner.cc.

References helper::SelectCode::all_, DummyCfis::c, mps_check::command, edm::errors::Configuration, TkAlMuonSelectors_cfi::cut, helper::SelectCode::daughtersDepth_, Exception, f, helper::SelectCode::keepOrDrop_, WDecay::kNone, helper::SelectCode::mothersDepth_, create_idmaps::n, corrVsCorr::selection, and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by produce().

                                                                                                       {
   using namespace ::helper;
   size_t f = selection.find_first_not_of(' ');
   size_t n = selection.size();
   string command;
   char c;
   for (; (c = selection[f]) != ' ' && f < n; ++f) {
     command.push_back(c);
   }
   if (command[0] == '+') {
     command.erase(0, 1);
     if (command[0] == '+') {
       command.erase(0, 1);
       code.mothersDepth_ = SelectCode::kAll;
     } else {
       code.mothersDepth_ = SelectCode::kFirst;
     }
   } else
     code.mothersDepth_ = SelectCode::kNone;
 
   if (command[command.size() - 1] == '+') {
     command.erase(command.size() - 1);
     if (command[command.size() - 1] == '+') {
       command.erase(command.size() - 1);
       code.daughtersDepth_ = SelectCode::kAll;
     } else {
       code.daughtersDepth_ = SelectCode::kFirst;
     }
   } else
     code.daughtersDepth_ = SelectCode::kNone;
 
   if (command == "keep")
     code.keepOrDrop_ = SelectCode::kKeep;
   else if (command == "drop")
     code.keepOrDrop_ = SelectCode::kDrop;
   else {
     throw Exception(errors::Configuration) << "invalid selection command: " << command << "\n" << endl;
   }
   for (; f < n; ++f) {
     if (selection[f] != ' ')
       break;
   }
   cut = string(selection, f);
   if (cut[0] == '*')
     cut = string(cut, 0, cut.find_first_of(' '));
   code.all_ = cut == "*";
 }

◆ produce()

void GenParticlePruner::produce	(	edm::Event &	evt,
		const edm::EventSetup &	es
	)

overrideprivate

Definition at line 165 of file GenParticlePruner.cc.

References reco::CompositeRefCandidateT< D >::addDaughter(), reco::CompositeRefCandidateT< D >::addMother(), edm::errors::Configuration, TkAlMuonSelectors_cfi::cut, drop, Exception, firstEvent_, flagDaughters(), flagMothers(), flags_, relval_steps::gen(), GenParticle::GenParticle, edm::Event::getByToken(), edm::EventSetup::getData(), getDaughterKeys(), getMotherKeys(), edm::Event::getRefBeforePut(), mps_fire::i, indices_, dqmiolumiharvest::j, keep, keepOrDropAll_, WDecay::kNone, eostools::move(), create_idmaps::n, MillePedeFileConverter_cfg::out, AlCaHLTBitMon_ParallelJobs::p, parse(), pdgEntryReplace(), edm::Event::put(), recursiveFlagDaughters(), recursiveFlagMothers(), EgammaValidation_Wenu_cff::sel, select_, selection_, reco::GenParticle::setCollisionId(), jetUpdater_cfi::sort, TrackRefitter_38T_cff::src, srcToken_, reco::GenParticle::statusFlags(), and tableToken_.

                                                                 {
   if (firstEvent_) {
     auto const &pdt = es.getData(tableToken_);
 
     for (vector<string>::const_iterator i = selection_.begin(); i != selection_.end(); ++i) {
       string cut;
       ::helper::SelectCode code;
       parse(*i, code, cut);
       if (code.all_) {
         if (i != selection_.begin())
           throw Exception(errors::Configuration)
               << "selections \"keep *\" and \"drop *\" can be used only as first options. Here used in position # "
               << (i - selection_.begin()) + 1 << "\n"
               << endl;
         switch (code.keepOrDrop_) {
           case ::helper::SelectCode::kDrop:
             keepOrDropAll_ = drop;
             break;
           case ::helper::SelectCode::kKeep:
             keepOrDropAll_ = keep;
         };
       } else {
         cut = pdgEntryReplace(cut, pdt);
         select_.push_back(make_pair(StringCutObjectSelector<GenParticle>(cut), code));
       }
     }
     firstEvent_ = false;
   }
 
   using namespace ::helper;
   Handle<GenParticleCollection> src;
   evt.getByToken(srcToken_, src);
   const size_t n = src->size();
   flags_.clear();
   flags_.resize(n, keepOrDropAll_);
   for (size_t j = 0; j < select_.size(); ++j) {
     const pair<StringCutObjectSelector<GenParticle>, SelectCode> &sel = select_[j];
     SelectCode code = sel.second;
     const StringCutObjectSelector<GenParticle> &cut = sel.first;
     for (size_t i = 0; i < n; ++i) {
       const GenParticle &p = (*src)[i];
       if (cut(p)) {
         int keepOrDrop = keep;
         switch (code.keepOrDrop_) {
           case SelectCode::kKeep:
             keepOrDrop = keep;
             break;
           case SelectCode::kDrop:
             keepOrDrop = drop;
         };
         flags_[i] = keepOrDrop;
         std::vector<size_t> allIndicesDa;
         std::vector<size_t> allIndicesMo;
         switch (code.daughtersDepth_) {
           case SelectCode::kAll:
             recursiveFlagDaughters(i, *src, keepOrDrop, allIndicesDa);
             break;
           case SelectCode::kFirst:
             flagDaughters(p, keepOrDrop);
             break;
           case SelectCode::kNone:;
         };
         switch (code.mothersDepth_) {
           case SelectCode::kAll:
             recursiveFlagMothers(i, *src, keepOrDrop, allIndicesMo);
             break;
           case SelectCode::kFirst:
             flagMothers(p, keepOrDrop);
             break;
           case SelectCode::kNone:;
         };
       }
     }
   }
   indices_.clear();
   int counter = 0;
   for (size_t i = 0; i < n; ++i) {
     if (flags_[i] == keep) {
       indices_.push_back(i);
       flags_[i] = counter++;
     } else {
       flags_[i] = -1;  //set to invalid ref
     }
   }
 
   auto out = std::make_unique<GenParticleCollection>();
   GenParticleRefProd outRef = evt.getRefBeforePut<GenParticleCollection>();
   out->reserve(counter);
 
   for (vector<size_t>::const_iterator i = indices_.begin(); i != indices_.end(); ++i) {
     size_t index = *i;
     const GenParticle &gen = (*src)[index];
     const LeafCandidate &part = gen;
     out->push_back(GenParticle(part));
     GenParticle &newGen = out->back();
     //fill status flags
     newGen.statusFlags() = gen.statusFlags();
     newGen.setCollisionId(gen.collisionId());
     // The "daIndxs" and "moIndxs" keep a list of the keys for the mother/daughter
     // parentage/descendency. In some cases, a circular referencing is encountered,
     // which would result in an infinite loop. The list is checked to
     // avoid this.
     vector<size_t> daIndxs, daNewIndxs;
     getDaughterKeys(daIndxs, daNewIndxs, gen.daughterRefVector());
     std::sort(daNewIndxs.begin(), daNewIndxs.end());
     for (size_t i = 0; i < daNewIndxs.size(); ++i)
       newGen.addDaughter(GenParticleRef(outRef, daNewIndxs[i]));
 
     vector<size_t> moIndxs, moNewIndxs;
     getMotherKeys(moIndxs, moNewIndxs, gen.motherRefVector());
     std::sort(moNewIndxs.begin(), moNewIndxs.end());
     for (size_t i = 0; i < moNewIndxs.size(); ++i)
       newGen.addMother(GenParticleRef(outRef, moNewIndxs[i]));
   }
 
   edm::OrphanHandle<reco::GenParticleCollection> oh = evt.put(std::move(out));
   auto orig2new = std::make_unique<edm::Association<reco::GenParticleCollection>>(oh);
   edm::Association<reco::GenParticleCollection>::Filler orig2newFiller(*orig2new);
   orig2newFiller.insert(src, flags_.begin(), flags_.end());
   orig2newFiller.fill();
   evt.put(std::move(orig2new));
 }

◆ recursiveFlagDaughters()

void GenParticlePruner::recursiveFlagDaughters	(	size_t	index,
		const reco::GenParticleCollection &	src,
		int	keepOrDrop,
		std::vector< size_t > &	allIndices
	)

private

Definition at line 123 of file GenParticlePruner.cc.

References BPhysicsValidation_cfi::daughters, spr::find(), flags_, mps_fire::i, and TrackRefitter_38T_cff::src.

Referenced by produce().

                                                                               {
   GenParticleRefVector daughters = src[index].daughterRefVector();
   // avoid infinite recursion if the daughters are set to "this" particle.
   size_t cachedIndex = index;
   for (GenParticleRefVector::const_iterator i = daughters.begin(); i != daughters.end(); ++i) {
     index = i->key();
     // To also avoid infinite recursion if a "loop" is found in the daughter list,
     // check to make sure the index hasn't already been added.
     if (find(allIndices.begin(), allIndices.end(), index) == allIndices.end()) {
       allIndices.push_back(index);
       if (cachedIndex != index) {
         flags_[index] = keepOrDrop;
         recursiveFlagDaughters(index, src, keepOrDrop, allIndices);
       }
     }
   }
 }

◆ recursiveFlagMothers()

void GenParticlePruner::recursiveFlagMothers	(	size_t	index,
		const reco::GenParticleCollection &	src,
		int	keepOrDrop,
		std::vector< size_t > &	allIndices
	)

private

Definition at line 144 of file GenParticlePruner.cc.

References edm::RefVector< C, T, F >::begin(), edm::RefVector< C, T, F >::end(), spr::find(), flags_, mps_fire::i, and TrackRefitter_38T_cff::src.

Referenced by produce().

                                                                             {
   GenParticleRefVector mothers = src[index].motherRefVector();
   // avoid infinite recursion if the mothers are set to "this" particle.
   size_t cachedIndex = index;
   for (GenParticleRefVector::const_iterator i = mothers.begin(); i != mothers.end(); ++i) {
     index = i->key();
     // To also avoid infinite recursion if a "loop" is found in the daughter list,
     // check to make sure the index hasn't already been added.
     if (find(allIndices.begin(), allIndices.end(), index) == allIndices.end()) {
       allIndices.push_back(index);
       if (cachedIndex != index) {
         flags_[index] = keepOrDrop;
         recursiveFlagMothers(index, src, keepOrDrop, allIndices);
       }
     }
   }
 }

Member Data Documentation

◆ firstEvent_

bool GenParticlePruner::firstEvent_

private

Definition at line 29 of file GenParticlePruner.cc.

Referenced by produce().

◆ flags_

std::vector<int> GenParticlePruner::flags_

private

Definition at line 35 of file GenParticlePruner.cc.

Referenced by flagDaughters(), flagMothers(), getDaughterKeys(), getMotherKeys(), produce(), recursiveFlagDaughters(), and recursiveFlagMothers().

◆ indices_

std::vector<size_t> GenParticlePruner::indices_

private

Definition at line 36 of file GenParticlePruner.cc.

Referenced by produce().

◆ keepOrDropAll_

int GenParticlePruner::keepOrDropAll_

private

Definition at line 32 of file GenParticlePruner.cc.

Referenced by produce().

◆ select_

std::vector<std::pair<StringCutObjectSelector<reco::GenParticle>, helper::SelectCode> > GenParticlePruner::select_

private

Definition at line 34 of file GenParticlePruner.cc.

Referenced by produce().

◆ selection_

std::vector<std::string> GenParticlePruner::selection_

private

Definition at line 33 of file GenParticlePruner.cc.

Referenced by produce().

◆ srcToken_

edm::EDGetTokenT<reco::GenParticleCollection> GenParticlePruner::srcToken_

private

Definition at line 30 of file GenParticlePruner.cc.

Referenced by produce().

◆ tableToken_

edm::ESGetToken<HepPDT::ParticleDataTable, edm::DefaultRecord> GenParticlePruner::tableToken_

private

Definition at line 31 of file GenParticlePruner.cc.

Referenced by produce().

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ GenParticlePruner()

Member Function Documentation

◆ flagDaughters()

◆ flagMothers()

◆ getDaughterKeys()

◆ getMotherKeys()

◆ parse()

◆ produce()

◆ recursiveFlagDaughters()

◆ recursiveFlagMothers()

Member Data Documentation

◆ firstEvent_

◆ flags_

◆ indices_

◆ keepOrDropAll_

◆ select_

◆ selection_

◆ srcToken_

◆ tableToken_