DDG4/src/Geant4InteractionMerger.cpp

0001 //==========================================================================
0002 //  AIDA Detector description implementation
0003 //--------------------------------------------------------------------------
0004 // Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
0005 // All rights reserved.
0006 //
0007 // For the licensing terms see $DD4hepINSTALL/LICENSE.
0008 // For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
0009 //
0010 // Author     : M.Frank
0011 //
0012 //==========================================================================
0013
0014 // Framework include files
0015 #include <DD4hep/Printout.h>
0016 #include <DD4hep/InstanceCount.h>
0017 #include <DDG4/Geant4InputHandling.h>
0018 #include <DDG4/Geant4InteractionMerger.h>
0019
0020 using namespace dd4hep::sim;
0021
0022 /// Standard constructor
0023 Geant4InteractionMerger::Geant4InteractionMerger(Geant4Context* ctxt, const std::string& nam)
0024   : Geant4GeneratorAction(ctxt,nam)
0025 {
0026   InstanceCount::increment(this);
0027 }
0028
0029 /// Default destructor
0030 Geant4InteractionMerger::~Geant4InteractionMerger()  {
0031   InstanceCount::decrement(this);
0032 }
0033
0034 /// Event generation action callback
0035 void Geant4InteractionMerger::operator()(G4Event* /* event */)  {
0036   Geant4PrimaryEvent* evt = context()->event().extension<Geant4PrimaryEvent>();
0037   const std::vector<Geant4PrimaryEvent::Interaction*>& inter  = evt->interactions();
0038   debug("+++ Merging MC input record from %d interactions:",(int)inter.size());
0039   mergeInteractions(this,context());
0040 }