GeneralParticleSource.cxx

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#include "SimCore/Generators/GeneralParticleSource.h"
 
/*~~~~~~~~~~~~*/
/*   Geant4   */
/*~~~~~~~~~~~~*/
#include "G4Event.hh"
#include "G4UImanager.hh"
 
/*~~~~~~~~~~~~~~~*/
/*   Framework   */
/*~~~~~~~~~~~~~~~*/
#include "Framework/Configure/Parameters.h"
 
namespace simcore {
namespace generators {
 
GeneralParticleSource::GeneralParticleSource(
    const std::string& name, const framework::config::Parameters& parameters)
    : PrimaryGenerator(name, parameters) {
  init_commands_ = parameters.get<std::vector<std::string>>("initCommands");
  for (const auto& cmd : init_commands_) {
    int g4_ret = G4UImanager::GetUIpointer()->ApplyCommand(cmd);
    if (g4_ret > 0) {
      EXCEPTION_RAISE("InitCmd",
                      "Initialization command '" + cmd +
                          "' returned a failue status from Geant4: " +
                          std::to_string(g4_ret));
    }
  }
}
 
void GeneralParticleSource::GeneratePrimaryVertex(G4Event* event) {
  // just pass to the Geant4 implementation
  the_g4_source_.GeneratePrimaryVertex(event);
  return;
}
 
void GeneralParticleSource::RecordConfig(const std::string& id,
                                         ldmx::RunHeader& rh) {
  rh.setStringParameter(id + " Class",
                        "simcore::generators::GeneralParticleSource");
  std::string init_prefix{id + " Init Cmd "};
  for (std::size_t i{0}; i < init_commands_.size(); i++) {
    rh.setStringParameter(init_prefix + std::to_string(i),
                          init_commands_.at(i));
  }
}
 
}  // namespace generators
}  // namespace simcore
 
DECLARE_GENERATOR(simcore::generators::GeneralParticleSource)