HGCalTriggerDigiFEReproducer.cc

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#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/stream/EDProducer.h"

#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Framework/interface/ConsumesCollector.h"

#include "DataFormats/L1THGCal/interface/HGCFETriggerDigi.h"
#include "DataFormats/L1THGCal/interface/HGCFETriggerDigiDefs.h"
#include "DataFormats/HGCDigi/interface/HGCDigiCollections.h"

#include "Geometry/Records/interface/CaloGeometryRecord.h"

#include "L1Trigger/L1THGCal/interface/HGCalTriggerGeometryBase.h"
#include "L1Trigger/L1THGCal/interface/HGCalTriggerFECodecBase.h"
#include "L1Trigger/L1THGCal/interface/HGCalTriggerBackendProcessor.h"

#include <sstream>
#include <memory>

class HGCalTriggerDigiFEReproducer : public edm::stream::EDProducer<> {
public:
  HGCalTriggerDigiFEReproducer(const edm::ParameterSet&);
  ~HGCalTriggerDigiFEReproducer() override {}

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

private:
  // inputs
  edm::EDGetToken inputdigi_;
  edm::ESHandle<HGCalTriggerGeometryBase> triggerGeometry_;
  // algorithm containers
  std::unique_ptr<HGCalTriggerFECodecBase> codec_;
  std::unique_ptr<HGCalTriggerBackendProcessor> backEndProcessor_;
};

DEFINE_FWK_MODULE(HGCalTriggerDigiFEReproducer);

/*****************************************************************/
HGCalTriggerDigiFEReproducer::HGCalTriggerDigiFEReproducer(const edm::ParameterSet& conf)
    : inputdigi_(consumes<l1t::HGCFETriggerDigiCollection>(conf.getParameter<edm::InputTag>("feDigis"))),
      backEndProcessor_(
          std::make_unique<HGCalTriggerBackendProcessor>(conf.getParameterSet("BEConfiguration"), consumesCollector()))
/*****************************************************************/
{
  //setup FE codec
  const edm::ParameterSet& feCodecConfig = conf.getParameterSet("FECodec");
  const std::string& feCodecName = feCodecConfig.getParameter<std::string>("CodecName");
  codec_ =
      std::unique_ptr<HGCalTriggerFECodecBase>{HGCalTriggerFECodecFactory::get()->create(feCodecName, feCodecConfig)};
  codec_->unSetDataPayload();

  produces<l1t::HGCFETriggerDigiCollection>();
  // register backend processor products
  backEndProcessor_->setProduces(*this);
}

/*****************************************************************/
void HGCalTriggerDigiFEReproducer::beginRun(const edm::Run& /*run*/, const edm::EventSetup& es)
/*****************************************************************/
{
  es.get<CaloGeometryRecord>().get(triggerGeometry_);
  codec_->setGeometry(triggerGeometry_.product());
  backEndProcessor_->setGeometry(triggerGeometry_.product());
}

/*****************************************************************/
void HGCalTriggerDigiFEReproducer::produce(edm::Event& e, const edm::EventSetup& es)
/*****************************************************************/
{
  std::unique_ptr<l1t::HGCFETriggerDigiCollection> fe_output(new l1t::HGCFETriggerDigiCollection);

  edm::Handle<l1t::HGCFETriggerDigiCollection> digis_h;

  e.getByToken(inputdigi_, digis_h);

  const l1t::HGCFETriggerDigiCollection& digis = *digis_h;

  fe_output->reserve(digis.size());
  std::stringstream output;
  for (const auto& digi_in : digis) {
    fe_output->push_back(l1t::HGCFETriggerDigi());
    l1t::HGCFETriggerDigi& digi_out = fe_output->back();
    codec_->setDataPayload(digi_in);
    codec_->encode(digi_out);
    digi_out.setDetId(digi_in.getDetId<HGCalDetId>());
    codec_->print(digi_out, output);
    edm::LogInfo("HGCalTriggerDigiFEReproducer") << output.str();
    codec_->unSetDataPayload();
    output.str(std::string());
    output.clear();
  }

  // get the orphan handle and fe digi collection
  auto fe_digis_handle = e.put(std::move(fe_output));
  auto fe_digis_coll = *fe_digis_handle;

  //now we run the emulation of the back-end processor
  backEndProcessor_->run(fe_digis_coll, es, e);
  backEndProcessor_->putInEvent(e);
  backEndProcessor_->reset();
}