PartPropExa.cpp

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* (c) Copyright 1998-2024 CERN for the benefit of the LHCb and ATLAS collaborations *
*                                                                                   *
* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
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#include "PartPropExa.h"
#include <GaudiKernel/IPartPropSvc.h>
#include <GaudiKernel/ISvcLocator.h>
#include <GaudiKernel/MsgStream.h>
 
#include <HepPDT/ParticleDataTable.hh>
 
#include <sstream>
 
// Static Factory declaration
 
DECLARE_COMPONENT( PartPropExa )
 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
StatusCode PartPropExa::initialize() {
 
  if ( m_pps.retrieve().isFailure() ) {
    error() << "Could not get PartPropSvc" << endmsg;
    return StatusCode::FAILURE;
  }
 
  m_pps->setUnknownParticleHandler( new HepPDT::TestUnknownID, "My Unknwon PID Test" );
 
  info() << "this should cause a warning: " << endmsg;
  m_pps->setUnknownParticleHandler( new HepPDT::TestUnknownID, "Second Unknwon PID Test" );
 
  HepPDT::ParticleDataTable* pdt = m_pps->PDT();
 
  m_pps->setUnknownParticleHandler( new HepPDT::TestUnknownID, "Third Unknwon PID Test" );
 
  std::ostringstream ost;
  pdt->writeParticleData( ost );
 
  info() << ost.str() << endmsg;
 
  return StatusCode::SUCCESS;
}
 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
StatusCode PartPropExa::execute() { return StatusCode::SUCCESS; }
 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
namespace HepPDT {
 
  CommonParticleData* TestUnknownID::processUnknownID( ParticleID key, const ParticleDataTable& pdt ) {
 
    std::cout << "TestUnknownID: " << key.PDTname() << std::endl;
 
    CommonParticleData* cpd = nullptr;
    if ( key.isNucleus() ) {
 
      // have to create a TempParticleData with all properties first
      TempParticleData tpd( key );
      // calculate approximate mass
      // WARNING: any calls to particle() from here MUST reference
      //          a ParticleData which is already in the table
      // This convention is enforced.
      const ParticleData* proton = pdt.particle( 2212 );
      if ( proton ) {
        double protonMass = proton->mass();
        tpd.tempMass      = Measurement( key.A() * protonMass, 0. );
        // now create CommonParticleData
        cpd = new CommonParticleData( tpd );
      }
    }
    return cpd;
  }
} // namespace HepPDT