IParticleSvc.h

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// SPDX-License-Identifier: LGPL-3.0-or-later
// Copyright (C) 2022 Whitney Armstrong
 
#ifndef IParticleSvc_H
#define IParticleSvc_H
 
#include <GaudiKernel/IService.h>
#include <unordered_map>
 
namespace Jug::Base {
 
  /** Simple particle data.
   *
   */
  struct ParticleData {
    int         pdgCode;
    int         charge;
    double      mass; //std::string name;
  };
} // namespace Jug::Base
 
/** Particle interface.
 *
 * \ingroup base
 */
class GAUDI_API IParticleSvc : virtual public IService {
public:
  using Particle    = Jug::Base::ParticleData;
  using ParticleMap = std::map<int, Particle>;
 
public:
  /// InterfaceID
  DeclareInterfaceID(IParticleSvc, 1, 0);
  virtual ~IParticleSvc() {}
 
  virtual ParticleMap particleMap() const = 0;
  virtual Particle    particle(int pdg) const = 0;
};
 
#endif  // IParticleSvc_H