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//
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// $Id: PATUserDataMerger.h,v 1.4.4.2 2009/04/28 14:29:39 gpetrucc Exp $
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//
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#ifndef PhysicsTools_PatAlgos_PATUserDataMerger_h
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#define PhysicsTools_PatAlgos_PATUserDataMerger_h
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/**
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\class pat::PATUserDataMerger PATUserDataMerger.h "PhysicsTools/PatAlgos/interface/PATUserDataMerger.h"
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\brief Assimilates pat::UserData into pat objects
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This expects one input:
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src: The data to add to the objects that get passed to this
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object, which are ValueMaps to some type (like UserData or double).
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This will be called from PATUserDataHelper to handle the templated cases
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like UserData or double. PATUserDataHelper will then add all the instantiated
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cases.
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\author Salvatore Rappoccio
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\version $Id: PATUserDataMerger.h,v 1.4.4.2 2009/04/28 14:29:39 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 "DataFormats/Common/interface/View.h"
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#include "DataFormats/Common/interface/Ptr.h"
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#include "DataFormats/Common/interface/Association.h"
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#include "DataFormats/Candidate/interface/Candidate.h"
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#include "DataFormats/PatCandidates/interface/PATObject.h"
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#include <iostream>
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namespace pat {
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namespace helper {
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struct AddUserInt {
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typedef int value_type;
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typedef edm::ValueMap<value_type> product_type;
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template<typename ObjectType>
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void addData(ObjectType &obj, const std::string & key, const value_type &val) { obj.addUserInt(key, val); }
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};
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struct AddUserFloat {
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typedef float value_type;
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typedef edm::ValueMap<value_type> product_type;
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template<typename ObjectType>
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void addData(ObjectType &obj, const std::string & key, const value_type &val) { obj.addUserFloat(key, val); }
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};
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struct AddUserPtr {
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typedef edm::Ptr<UserData> value_type;
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typedef edm::ValueMap<value_type> product_type;
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template<typename ObjectType>
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void addData(ObjectType &obj, const std::string & key, const value_type &val) {
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if (val.isNonnull()) obj.addUserDataFromPtr(key, val);
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}
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};
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}
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template<typename ObjectType, typename Operation>
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class PATUserDataMerger {
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public:
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PATUserDataMerger() {}
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PATUserDataMerger(const edm::ParameterSet & iConfig);
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~PATUserDataMerger() {}
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// Method to call from PATUserDataHelper to add information to the PATObject in question.
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void add(ObjectType & patObject,
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edm::Event const & iEvent, edm::EventSetup const & iSetup);
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private:
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// configurables
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std::vector<edm::InputTag> userDataSrc_; // ValueMap containing the user data
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Operation loader_;
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};
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}
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// Constructor: Initilize user data src
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template<typename ObjectType, typename Operation>
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pat::PATUserDataMerger<ObjectType, Operation>::PATUserDataMerger(const edm::ParameterSet & iConfig) :
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userDataSrc_(iConfig.getParameter<std::vector<edm::InputTag> >("src") )
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{
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}
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/* ==================================================================================
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PATUserDataMerger::add
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This expects four inputs:
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patObject: ObjectType to add to
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from Event:
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userDataSrc: The data to add, which is a ValueMap keyed by recoObject
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from Setup:
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none currently
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This will simply add the UserData *'s from the value map that are
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indexed by the reco objects, to the pat object's user data vector.
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==================================================================================
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*/
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template<class ObjectType, typename Operation>
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void
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pat::PATUserDataMerger<ObjectType, Operation>::add(ObjectType & patObject,
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edm::Event const & iEvent,
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const edm::EventSetup & iSetup )
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{
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std::vector<edm::InputTag>::const_iterator input_it = userDataSrc_.begin(),
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input_begin = userDataSrc_.begin(),
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input_end = userDataSrc_.end();
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for ( ; input_it != input_end; ++input_it ) {
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// Declare the object handles:
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// ValueMap containing the values, or edm::Ptr's to the UserData that
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// is associated to those PAT Objects
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edm::Handle<typename Operation::product_type> userData;
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// Get the objects by label
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iEvent.getByLabel( *input_it, userData );
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edm::Ptr<reco::Candidate> recoObject = patObject.originalObjectRef();
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if ( userData->contains( recoObject.id() ) ) {
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loader_.addData( patObject, input_it->encode(), (*userData)[recoObject]);
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}
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}
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}
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#endif
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