#include <ThinningProducer.h>

Inheritance diagram for edm::ThinningProducer< Collection, Selector >:

Public Member Functions
virtual void	produce (Event &event, EventSetup const &eventSetup) override

virtual void	registerThinnedAssociations (ProductRegistry const &productRegistry, ThinnedAssociationsHelper &thinnedAssociationsHelper) override

	ThinningProducer (ParameterSet const &pset)

virtual	~ThinningProducer ()

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

bool	hasAbilityToProduceInLumis () const final

bool	hasAbilityToProduceInRuns () const final

Static Public Member Functions
static void	fillDescriptions (ConfigurationDescriptions &descriptions)

Private Attributes
edm::InputTag	inputTag_

edm::EDGetTokenT< Collection >	inputToken_

edm::propagate_const< std::unique_ptr< Selector > >	selector_

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

typedef CacheTypes::GlobalCache	GlobalCache

typedef AbilityChecker< T... >	HasAbility

typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache

typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext

typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache

typedef CacheTypes::RunCache	RunCache

typedef RunContextT< RunCache, GlobalCache >	RunContext

typedef CacheTypes::RunSummaryCache	RunSummaryCache

Detailed Description

template<typename Collection, typename Selector>
class edm::ThinningProducer< Collection, Selector >

Author: W. David Dagenhart, created 11 June 2014

Definition at line 30 of file ThinningProducer.h.

Constructor & Destructor Documentation

template<typename Collection , typename Selector >

edm::ThinningProducer< Collection, Selector >::ThinningProducer ( ParameterSet const & pset )

explicit

Definition at line 49 of file ThinningProducer.h.

References edm::ParameterSet::getParameter(), edm::ThinningProducer< Collection, Selector >::inputTag_, edm::ThinningProducer< Collection, Selector >::inputToken_, and edm::ThinningProducer< Collection, Selector >::~ThinningProducer().

                                              :
     selector_(new Selector(pset, consumesCollector())) {
 
     inputTag_ = pset.getParameter<InputTag>("inputTag");
     inputToken_ = consumes<Collection>(inputTag_);
 
     produces<Collection>();
     produces<ThinnedAssociation>();
   }

template<typename Collection , typename Selector >

edm::ThinningProducer< Collection, Selector >::~ThinningProducer ( )

virtual

Definition at line 61 of file ThinningProducer.h.

References edm::ThinningProducer< Collection, Selector >::fillDescriptions().

Referenced by edm::ThinningProducer< Collection, Selector >::ThinningProducer().

61 {}

Member Function Documentation

template<typename Collection , typename Selector >

void edm::ThinningProducer< Collection, Selector >::fillDescriptions ( ConfigurationDescriptions & descriptions )

static

Definition at line 65 of file ThinningProducer.h.

References edm::ParameterSetDescription::add(), edm::ConfigurationDescriptions::addDefault(), edm::ThinningProducer< Collection, Selector >::produce(), and edm::ParameterSetDescription::setComment().

Referenced by edm::ThinningProducer< Collection, Selector >::~ThinningProducer().

                                                              {
     ParameterSetDescription desc;
     desc.setComment("Produces thinned collections and associations to them");
     desc.add<edm::InputTag>("inputTag");
     Selector::fillDescription(desc);
     descriptions.addDefault(desc);
   }

template<typename Collection , typename Selector >

void edm::ThinningProducer< Collection, Selector >::produce	(	Event &	event,
		EventSetup const &	eventSetup
	)

overridevirtual

Definition at line 75 of file ThinningProducer.h.

References event(), edm::OrphanHandleBase::id(), edm::HandleBase::id(), genParticles_cff::inputCollection, edm::ThinningProducer< Collection, Selector >::inputToken_, eostools::move(), edm::ThinningProducer< Collection, Selector >::registerThinnedAssociations(), and edm::ThinningProducer< Collection, Selector >::selector_.

Referenced by JSONExport.JsonExport::export(), HTMLExport.HTMLExport::export(), HTMLExport.HTMLExportStatic::export(), and edm::ThinningProducer< Collection, Selector >::fillDescriptions().

                                                       {
 
     edm::Handle<Collection> inputCollection;
     event.getByToken(inputToken_, inputCollection);
 
     edm::Event const& constEvent = event;
     selector_->preChoose(inputCollection, constEvent, eventSetup);
 
     auto thinnedCollection = std::make_unique<Collection>();
     auto thinnedAssociation = std::make_unique<ThinnedAssociation>();
 
     unsigned int iIndex = 0;
     for(auto iter = inputCollection->begin(), iterEnd = inputCollection->end();
         iter != iterEnd; ++iter, ++iIndex) {
       if(selector_->choose(iIndex, *iter)) {
         thinnedCollection->push_back(*iter);
         thinnedAssociation->push_back(iIndex);
       }
     }
     OrphanHandle<Collection> orphanHandle = event.put(std::move(thinnedCollection));
 
     thinnedAssociation->setParentCollectionID(inputCollection.id());
     thinnedAssociation->setThinnedCollectionID(orphanHandle.id());
     event.put(std::move(thinnedAssociation));
   }

template<typename Collection , typename Selector >

void edm::ThinningProducer< Collection, Selector >::registerThinnedAssociations	(	ProductRegistry const &	productRegistry,
		ThinnedAssociationsHelper &	thinnedAssociationsHelper
	)

overridevirtual

Definition at line 103 of file ThinningProducer.h.

References edm::ThinnedAssociationsHelper::addAssociation(), edm::BranchDescription::branchID(), edm::ThinningProducer< Collection, Selector >::inputTag_, edm::InputTag::instance(), edm::InputTag::label(), edm::BranchDescription::moduleLabel(), edm::BranchDescription::originalBranchID(), edm::InputTag::process(), edm::BranchDescription::processName(), edm::BranchDescription::produced(), edm::BranchDescription::productInstanceName(), edm::ProductRegistry::productList(), edm::TypeWithDict::typeInfo(), edm::BranchDescription::unwrappedType(), and edm::InputTag::willSkipCurrentProcess().

Referenced by edm::ThinningProducer< Collection, Selector >::produce().

                                                                                     {
 
     BranchID associationID;
     BranchID thinnedCollectionID;
 
     // If the InputTag does not specify the process name, it is
     // possible that there will be more than one match found below.
     // For a particular event only one match is correct and the
     // others will be false. It even possible for some events one
     // match is correct and for others another is correct. This is
     // a side effect of the lookup mechanisms when the process name
     // is not specified.
     // When using the registry this generates one would have to
     // check the ProductIDs in ThinnedAssociation product to get
     // the correct association. This ambiguity will probably be
     // rare and possibly never occur in practice.
     std::vector<BranchID> parentCollectionIDs;
 
     ProductRegistry::ProductList const& productList = productRegistry.productList();
     for(auto const& product : productList) {
       BranchDescription const& desc = product.second;
       if(desc.unwrappedType().typeInfo() == typeid(Collection) ) {
         if(desc.produced() &&
            desc.moduleLabel() == moduleDescription().moduleLabel() &&
            desc.productInstanceName().empty()) {
 
           thinnedCollectionID = desc.branchID();
         }
         if(desc.moduleLabel() == inputTag_.label() &&
            desc.productInstanceName() == inputTag_.instance()) {
           if(inputTag_.willSkipCurrentProcess()) {
             if(!desc.produced()) {
               parentCollectionIDs.push_back(desc.branchID());
             }
           } else if (inputTag_.process().empty() || inputTag_.process() == desc.processName()) {
             if(desc.produced()) {
               parentCollectionIDs.push_back(desc.originalBranchID());
             } else {
               parentCollectionIDs.push_back(desc.branchID());
             }
           }
         }
       }
       if(desc.produced() &&
          desc.unwrappedType().typeInfo() == typeid(ThinnedAssociation) &&
          desc.moduleLabel() == moduleDescription().moduleLabel() &&
          desc.productInstanceName().empty()) {
 
         associationID = desc.branchID();
       }
     }
     if(parentCollectionIDs.empty()) {
       // This could happen if the input collection was dropped. Go ahead and add
       // an entry and let the exception be thrown only if the module is run (when
       // it cannot find the product).
       thinnedAssociationsHelper.addAssociation(BranchID(), associationID, thinnedCollectionID);
     } else {
       for(auto const& parentCollectionID : parentCollectionIDs) {
         thinnedAssociationsHelper.addAssociation(parentCollectionID, associationID, thinnedCollectionID);
       }
     }
   }