CbmBuildEventsIdeal.cxx

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#include "CbmBuildEventsIdeal.h"
 
#include <FairLogger.h>
#include <FairRootManager.h>
#include <TClonesArray.h>
#include <TStopwatch.h>
#include <cassert>
#include <iomanip>
#include <iostream>
 
#include "CbmDigiManager.h"
#include "CbmEvent.h"
#include "CbmLink.h"
#include "CbmMatch.h"
#include "CbmModuleList.h"
 
using namespace std;
 
 
// =====   Constructor   =====================================================
CbmBuildEventsIdeal::CbmBuildEventsIdeal() : FairTask("BuildEventsIdeal") {}
// ===========================================================================
 
 
// =====   Destructor   ======================================================
CbmBuildEventsIdeal::~CbmBuildEventsIdeal() {}
// ===========================================================================
 
 
// =====   Task execution   ==================================================
void CbmBuildEventsIdeal::Exec(Option_t*) {
 
  TStopwatch timer;
  timer.Start();
  std::map<Int_t, CbmEvent*> eventMap;
  Int_t nEvents      = 0;
  UInt_t nDigisTot   = 0;
  UInt_t nDigisNoise = 0;
 
  // Clear output array
  fEvents->Delete();
 
  for (ECbmModuleId& system : fSystems) {
    if (!fDigiMan->IsPresent(system)) continue;
    if (!fDigiMan->IsMatchPresent(system)) continue;
    Int_t nDigis  = fDigiMan->GetNofDigis(system);
    UInt_t nNoise = 0;
    LOG(info) << GetName() << ": System "
              << CbmModuleList::GetModuleNameCaps(system) << ", digis "
              << nDigis;
 
    for (Int_t iDigi = 0; iDigi < nDigis; iDigi++) {
      const CbmMatch* match = fDigiMan->GetMatch(system, iDigi);
      assert(match);
 
      // This implementation uses only MC event number from
      // the matched link, i.e. that with the largest weight.
      // Can be refined later on.
      Int_t mcEventNr = match->GetMatchedLink().GetEntry();
 
      // Ignore digis with missing event number (noise)
      if (mcEventNr < 0) {
        nNoise++;
        continue;
      }
 
      // Get event pointer. If event is not yet present, create it.
      CbmEvent* event = NULL;
      if (eventMap.find(mcEventNr) == eventMap.end()) {
        event               = new ((*fEvents)[nEvents]) CbmEvent(nEvents);
        eventMap[mcEventNr] = event;
        nEvents++;
      } else
        event = eventMap.at(mcEventNr);
 
      // Fill digi index into event
      switch (system) {
        case ECbmModuleId::kMvd:
          event->AddData(ECbmDataType::kMvdDigi, iDigi);
          break;
        case ECbmModuleId::kSts:
          event->AddData(ECbmDataType::kStsDigi, iDigi);
          break;
        case ECbmModuleId::kRich:
          event->AddData(ECbmDataType::kRichDigi, iDigi);
          break;
        case ECbmModuleId::kMuch:
          event->AddData(ECbmDataType::kMuchDigi, iDigi);
          break;
        case ECbmModuleId::kTrd:
          event->AddData(ECbmDataType::kTrdDigi, iDigi);
          break;
        case ECbmModuleId::kTof:
          event->AddData(ECbmDataType::kTofDigi, iDigi);
          break;
        case ECbmModuleId::kPsd:
          event->AddData(ECbmDataType::kPsdDigi, iDigi);
          break;
        default: break;
      }  //? detector
 
    }  //# digis
    LOG(debug) << GetName() << ": Detector "
               << CbmModuleList::GetModuleNameCaps(system) << ", digis "
               << nDigis << ", noise " << nNoise;
    nDigisTot += nDigis;
    nDigisNoise += nNoise;
 
  }  //# detectors
 
 
  timer.Stop();
  assert(nEvents == fEvents->GetEntriesFast());
 
  // --- Execution log
  std::cout << std::endl;
  LOG(info) << "+ " << setw(15) << GetName() << ": Time-slice " << setw(3)
            << right << fNofEntries << ", events: " << setw(6) << nEvents
            << ", digis: " << nDigisTot << ", noise: " << nDigisNoise
            << ". Exec time " << fixed << setprecision(6) << timer.RealTime()
            << " s.";
 
  // --- For debug: event info
  if (gLogger->IsLogNeeded(fair::Severity::debug)) {
    for (Int_t iEvent = 0; iEvent < fEvents->GetEntriesFast(); iEvent++) {
      CbmEvent* event = (CbmEvent*) fEvents->At(iEvent);
      LOG(info) << event->ToString();
    }
  }
 
  fNofEntries++;
}
// ===========================================================================
 
 
// =====   Task initialisation   =============================================
InitStatus CbmBuildEventsIdeal::Init() {
 
  // --- Get FairRootManager instance
  FairRootManager* ioman = FairRootManager::Instance();
  assert(ioman);
 
  // --- DigiManager instance
  fDigiMan = CbmDigiManager::Instance();
  fDigiMan->Init();
 
  std::cout << std::endl;
  LOG(info) << "==================================================";
  LOG(info) << GetName() << ": Initialising...";
 
 
  // --- Check input data
  for (ECbmModuleId system = ECbmModuleId::kMvd;
       system < ECbmModuleId::kNofSystems;
       ++system) {
    if (fDigiMan->IsMatchPresent(system)) {
      LOG(info) << GetName() << ": Found match branch for "
                << CbmModuleList::GetModuleNameCaps(system);
      fSystems.push_back(system);
    }
  }
  if (fSystems.empty()) {
    LOG(fatal) << GetName() << ": No match branch found!";
    return kFATAL;
  }
 
  // Register output array (CbmEvent)
  if (ioman->GetObject("Event")) {
    LOG(fatal) << GetName() << ": Branch Event already exists!";
    return kFATAL;
  }
  fEvents = new TClonesArray("CbmEvent", 100);
  ioman->Register(
    "Event", "CbmEvent", fEvents, IsOutputBranchPersistent("Event"));
  if (!fEvents) {
    LOG(fatal) << GetName() << ": Output branch could not be created!";
    return kFATAL;
  }
 
  LOG(info) << "==================================================";
  std::cout << std::endl;
 
  return kSUCCESS;
}
// ===========================================================================
 
 
ClassImp(CbmBuildEventsIdeal)