Generalize DigiEventSelector. Refs #2918

The current implementation allows to select based on the digi multiplicity in BMON and the number of layers in STS and TOF. This is generalized to all detector systems.

algo/evbuild/EventbuildChain.cxx

@@ -28,11 +28,11 @@ void EventbuildChain::Init(const MainConfig& config)
   }
 
   // --- Configure the event selector
-  size_t minStatSts   = fConfig.fSelectMinStationsSts;
-  size_t minStatTof   = fConfig.fSelectMinStationsTof;
-  size_t minDigisBmon = fConfig.fSelectMinDigisBmon;
-  auto selectPar      = cbm::algo::DigiEventSelectorParams {minStatSts, minStatTof, minDigisBmon};
-  fSelector.SetParams(selectPar);
+  evbuild::DigiEventSelectorParams selectPar;
+  selectPar.fMinNumDigis[ECbmModuleId::kT0]   = fConfig.fSelectMinDigisBmon;
+  selectPar.fMinNumLayers[ECbmModuleId::kSts] = fConfig.fSelectMinStationsSts;
+  selectPar.fMinNumLayers[ECbmModuleId::kTof] = fConfig.fSelectMinStationsTof;
+  fSelector                                   = std::make_unique<evbuild::DigiEventSelector>(selectPar);
 
   // --- Configure the event QA
   const double border    = 10.;  // TODO: Histogram border hard-coded
@@ -65,7 +65,7 @@ std::vector<CbmDigiEvent> EventbuildChain::Run(const CbmDigiTimeslice& timeslice
   std::vector<CbmDigiEvent> events = fEventBuilder(timeslice, triggers).first;
 
   // --- Apply event selector
-  auto notSelected = [&](CbmDigiEvent& ev) { return !fSelector(ev); };
+  auto notSelected = [&](CbmDigiEvent& ev) { return !((*fSelector)(ev)); };
   auto removeIt    = std::remove_if(events.begin(), events.end(), notSelected);
   events.erase(removeIt, events.end());