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// -*- C++ -*-
//
// Package: CommonTools/RecoAlgos
// Class: BooleanFlagFilter
//
/**\class BooleanFlagFilter BooleanFlagFilter.cc CommonTools/RecoAlgos/plugins/BooleanFlagFilter.cc
Description: [one line class summary]
Implementation:
[Notes on implementation]
*/
//
// Original Author: Igor Volobouev
// Created: Fri, 20 Mar 2015 08:05:20 GMT
//
//
// system include files
#include <memory>
// user include files
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/global/EDFilter.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
//
// class declaration
//
class BooleanFlagFilter : public edm::global::EDFilter<> {
public:
explicit BooleanFlagFilter(const edm::ParameterSet&);
private:
bool filter(edm::StreamID, edm::Event&, const edm::EventSetup&) const override;
// ----------member data ---------------------------
edm::EDGetTokenT<bool> inputToken_;
bool reverse_;
};
//
// constants, enums and typedefs
//
//
// static data member definitions
//
//
// constructors and destructor
//
BooleanFlagFilter::BooleanFlagFilter(const edm::ParameterSet& iConfig) {
//now do what ever initialization is needed
inputToken_ = consumes<bool>(iConfig.getParameter<edm::InputTag>("inputLabel"));
reverse_ = iConfig.getParameter<bool>("reverseDecision");
}
//
// member functions
//
// ------------ method called on each new Event ------------
bool BooleanFlagFilter::filter(edm::StreamID, edm::Event& iEvent, const edm::EventSetup& iSetup) const {
using namespace edm;
Handle<bool> pIn;
iEvent.getByToken(inputToken_, pIn);
if (!pIn.isValid()) {
throw edm::Exception(edm::errors::ProductNotFound) << " could not find requested flag\n";
return true;
}
bool result = *pIn;
if (reverse_)
result = !result;
return result;
}
//define this as a plug-in
DEFINE_FWK_MODULE(BooleanFlagFilter);
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