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#include "DataFormats/Common/interface/DetSetVectorNew.h"
#include "DataFormats/Common/interface/Handle.h"
#include "DataFormats/TestObjects/interface/Thing.h"
#include "DataFormats/TestObjects/interface/TrackOfDSVThings.h"
#include "FWCore/Framework/interface/ConsumesCollector.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Framework/interface/stream/ThinningProducer.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/EDGetToken.h"
#include "FWCore/Utilities/interface/Exception.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"
#include <set>
#include <string>
namespace edmtest {
class SlimmingDSVThingSelector {
public:
SlimmingDSVThingSelector(edm::ParameterSet const& pset, edm::ConsumesCollector&& cc);
static void fillPSetDescription(edm::ParameterSetDescription& desc);
void preChoose(edm::Handle<edmNew::DetSetVector<Thing>> tc, edm::Event const& event, edm::EventSetup const& es);
std::optional<edmtest::Thing> choose(unsigned int iIndex, edmtest::Thing const& iItem) const;
void reset() { keysToSave_.clear(); }
private:
edm::EDGetTokenT<TrackOfDSVThingsCollection> const trackToken_;
std::set<unsigned int> keysToSave_;
unsigned int const offsetToThinnedKey_;
unsigned int const offsetToValue_;
unsigned int const expectedDetSets_;
unsigned int const expectedDetSetSize_;
int const slimmedValueFactor_;
};
SlimmingDSVThingSelector::SlimmingDSVThingSelector(edm::ParameterSet const& pset, edm::ConsumesCollector&& cc)
: trackToken_(cc.consumes<TrackOfDSVThingsCollection>(pset.getParameter<edm::InputTag>("trackTag"))),
offsetToThinnedKey_(pset.getParameter<unsigned int>("offsetToThinnedKey")),
offsetToValue_(pset.getParameter<unsigned int>("offsetToValue")),
expectedDetSets_(pset.getParameter<unsigned int>("expectedDetSets")),
expectedDetSetSize_(pset.getParameter<unsigned int>("expectedDetSetSize")),
slimmedValueFactor_(pset.getParameter<int>("slimmedValueFactor")) {}
void SlimmingDSVThingSelector::fillPSetDescription(edm::ParameterSetDescription& desc) {
desc.add<edm::InputTag>("trackTag");
desc.add<unsigned int>("offsetToThinnedKey");
desc.add<unsigned int>("offsetToValue", 0);
desc.add<unsigned int>("expectedDetSets");
desc.add<unsigned int>("expectedDetSetSize");
desc.add<int>("slimmedValueFactor", 1);
}
void SlimmingDSVThingSelector::preChoose(edm::Handle<edmNew::DetSetVector<Thing>> tc,
edm::Event const& event,
edm::EventSetup const& es) {
for (auto const& track : event.get(trackToken_)) {
keysToSave_.insert(track.ref1.key() - offsetToThinnedKey_);
keysToSave_.insert(track.ref2.key() - offsetToThinnedKey_);
}
// Just checking to see if the collection got passed in. Not really using it for anything.
if (tc->size() != expectedDetSets_) {
throw cms::Exception("TestFailure") << "SlimmingDSVThingSelector::preChoose, number of DetSets = " << tc->size()
<< " expected = " << expectedDetSets_;
}
for (auto const& ds : *tc) {
if (ds.size() != expectedDetSetSize_) {
throw cms::Exception("TestFailure")
<< "SlimmingDSVThingSelector::preChoose, number of elements in DetSet with id " << ds.id() << " = "
<< ds.size() << " expected = " << expectedDetSetSize_;
}
}
}
std::optional<edmtest::Thing> SlimmingDSVThingSelector::choose(unsigned int iIndex,
edmtest::Thing const& iItem) const {
// Just checking to see the element in the container got passed in OK. Not really using it.
// Just using %10 because it coincidentally works with the arbitrary numbers I picked, no meaning really.
auto const expected = slimmedValueFactor_ * (iIndex + offsetToValue_);
if (static_cast<unsigned>(iItem.a % 10) != static_cast<unsigned>(expected % 10)) {
throw cms::Exception("TestFailure") << "SlimmingDSVThingSelector::choose, item content = " << iItem.a
<< " index = " << iIndex << " expected " << expected;
}
// Save the Things referenced by the Tracks
if (keysToSave_.find(iIndex) == keysToSave_.end())
return std::nullopt;
auto copy = iItem;
copy.a *= 10;
return copy;
}
} // namespace edmtest
using SlimmingDSVThingProducer =
edm::ThinningProducer<edmNew::DetSetVector<edmtest::Thing>, edmtest::SlimmingDSVThingSelector>;
DEFINE_FWK_MODULE(SlimmingDSVThingProducer);
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