PartPropSvc.h

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* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
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#pragma once
 
#include <GaudiKernel/IPartPropSvc.h>
#include <GaudiKernel/Service.h>
#include <HepPDT/ParticleDataTable.hh>
#include <HepPDT/TableBuilder.hh>
 
#include <iostream>
#include <optional>
#include <string>
#include <utility>
#include <vector>
 
//------------------------------------------------------------------
//
// ClassName:   PartPropSvc
//
// Description: This service provides access to particle properties.
//              Uses HepPDT as the underlying layer
//
// Author:      Charles Leggett
//
// Date:        3-8-2001
//
//------------------------------------------------------------------
 
class PartPropSvc : public extends<Service, IPartPropSvc> {
public:
  using extends::extends;
 
  StatusCode initialize() override;
  StatusCode finalize() override;
 
  // The table
  HepPDT::ParticleDataTable* PDT() override;
 
  void setUnknownParticleHandler( HepPDT::ProcessUnknownID*, const std::string& ) override;
 
private:
  using inputFunPtr = bool ( * )( std::istream&, HepPDT::TableBuilder& );
 
  StatusCode                                       createTable();
  std::vector<std::pair<std::string, inputFunPtr>> m_inputs;
 
  Gaudi::Property<std::string> m_pdtFiles{ this, "InputFile", "PDGTABLE.MeV" };
 
  HepPDT::ProcessUnknownID* m_upid = nullptr;
  std::string               m_upid_name;
 
  std::optional<HepPDT::ParticleDataTable> m_pdt;
 
  inputFunPtr parseTableType( const std::string& );
 
  bool m_upid_local = false;
};