#include <ReadHepEvtFromAscii.h>

Inheritance diagram for ReadHepEvtFromAscii:

Collaboration diagram for ReadHepEvtFromAscii:

Public Member Functions
	ReadHepEvtFromAscii (const std::string &name, ISvcLocator *pSvcLocator)
virtual StatusCode	initialize () override
virtual StatusCode	execute () override
virtual StatusCode	finalize () override
virtual StatusCode	sysInitialize () override
	Override sysInitialize.
virtual const DataObjIDColl &	extraOutputDeps () const override
	Return the list of extra output dependencies.
ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard `StoreGateSvc` (event store) Returns (kind of) a pointer to the `StoreGateSvc`.
const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard `StoreGateSvc/DetectorStore` Returns (kind of) a pointer to the `StoreGateSvc`.
virtual StatusCode	sysStart () override
	Handle START transition.
virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles.
virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles.
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Property< T, V, H > &t)
void	updateVHKA (Gaudi::Details::PropertyBase &)
MsgStream &	msg () const
bool	msgLvl (const MSG::Level lvl) const

Protected Member Functions
void	renounceArray (SG::VarHandleKeyArray &handlesArray)
	remove all handles from I/O resolution
std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void >	renounce (T &h)
void	extraDeps_update_handler (Gaudi::Details::PropertyBase &ExtraDeps)
	Add StoreName to extra input/output deps as needed.

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
bool	read_hepevt_particle (int i)
bool	read_hepevt_event_header ()
	This class is only needed for HepMC2-based builds.
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Private Attributes
std::string	m_key
std::string	m_input_file
std::ifstream	m_file
DataObjIDColl	m_extendedExtraObjects
StoreGateSvc_t	m_evtStore
	Pointer to StoreGate (event store by default)
StoreGateSvc_t	m_detStore
	Pointer to StoreGate (detector store by default)
std::vector< SG::VarHandleKeyArray * >	m_vhka
bool	m_varHandleArraysDeclared

Detailed Description

Definition at line 10 of file ReadHepEvtFromAscii.h.

Member Typedef Documentation

◆ StoreGateSvc_t

typedef ServiceHandle<StoreGateSvc> AthCommonDataStore< AthCommonMsg< Algorithm > >::StoreGateSvc_t

privateinherited

Definition at line 388 of file AthCommonDataStore.h.

Constructor & Destructor Documentation

◆ ReadHepEvtFromAscii()

ReadHepEvtFromAscii::ReadHepEvtFromAscii	(	const std::string &	name,
		ISvcLocator *	pSvcLocator )

Definition at line 77 of file ReadHepEvtFromAscii.cxx.

  :  AthAlgorithm(name, pSvcLocator)
{
  // Set users' request
  declareProperty("McEventKey",  m_key        = "GEN_EVENT");
  declareProperty("HepEvtFile",   m_input_file = "events.ascii");
}

Member Function Documentation

◆ declareGaudiProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< Algorithm > >::declareGaudiProperty	(	Gaudi::Property< T, V, H > &	hndl,
		const SG::VarHandleKeyType &	)

inlineprivateinherited

specialization for handling Gaudi::Property<SG::VarHandleKey>

Definition at line 156 of file AthCommonDataStore.h.

  {
    return *AthCommonDataStore<PBASE>::declareProperty(hndl.name(),
                                                       hndl.value(), 
                                                       hndl.documentation());
 
  }

◆ declareProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< Algorithm > >::declareProperty ( Gaudi::Property< T, V, H > & t )

inlineinherited

Definition at line 145 of file AthCommonDataStore.h.

                                                                     {
    typedef typename SG::HandleClassifier<T>::type htype;
    return AthCommonDataStore<PBASE>::declareGaudiProperty(t, htype());
  }

◆ detStore()

const ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< Algorithm > >::detStore ( ) const

inlineinherited

The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 95 of file AthCommonDataStore.h.

95{ return m_detStore; }

AthCommonDataStore< AthCommonMsg< Algorithm > >::m_detStore

StoreGateSvc_t m_detStore

Definition AthCommonDataStore.h:393

◆ evtStore()

ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< Algorithm > >::evtStore ( )

inlineinherited

The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 85 of file AthCommonDataStore.h.

85{ return m_evtStore; }

AthCommonDataStore< AthCommonMsg< Algorithm > >::m_evtStore

StoreGateSvc_t m_evtStore

Definition AthCommonDataStore.h:390

◆ execute()

StatusCode ReadHepEvtFromAscii::execute ( )

overridevirtual

Definition at line 104 of file ReadHepEvtFromAscii.cxx.

                                        {
 
  msg(MSG::INFO) << ">>> ReadHepEvtFromAscii from execute" << endmsg;
  
  McEventCollection* mcEvtColl;
 
  if ( evtStore()->contains<McEventCollection>(m_key) && evtStore()->retrieve(mcEvtColl, m_key).isSuccess() ) {
    if (msgLvl(MSG::VERBOSE)) msg(MSG::VERBOSE) << "found an McEventCollecion in store" << endmsg;
  } else {
    // McCollection doesn't exist. Create it (empty)
    if (msgLvl(MSG::VERBOSE)) msg(MSG::VERBOSE) << "create new McEventCollecion in store" << endmsg;
    mcEvtColl = new McEventCollection;
    StatusCode status = evtStore()->record( mcEvtColl, m_key );
    if (status.isFailure()) {
      msg(MSG::ERROR) << "Could not record McEventCollection" << endmsg;
      return status;
    }
  }
 
  HepMC::GenEvent* evt = new HepMC::GenEvent(); 
  HepMC::HEPEVT_Wrapper::zero_everything();
  bool fileok=read_hepevt_event_header();
  for (int i=1; (i<=HepMC::HEPEVT_Wrapper::number_entries())&&fileok; i++) fileok=read_hepevt_particle(i);
  if (!fileok) return StatusCode::FAILURE;
 
#ifdef HEPMC3
  HepMC::HEPEVT_Wrapper::HEPEVT_to_GenEvent(evt);
#else
  HepMC::IO_HEPEVT hepio;
  hepio.set_print_inconsistency_errors(0);
  hepio.fill_next_event(evt);
#endif
 
  // Convert GeV to MeV 
#ifdef HEPMC3
  for ( auto p: evt->particles() ){
#else
  for ( auto ip = evt->particles_begin(); ip != evt->particles_end(); ++ip ){
      auto p=*ip;
#endif
      HepMC::FourVector newMomentum(0.,0.,0.,0.);
      newMomentum.setPx( p->momentum().px() * 1000. );
      newMomentum.setPy( p->momentum().py() * 1000. );
      newMomentum.setPz( p->momentum().pz() * 1000. );
      newMomentum.setE( p->momentum().e() * 1000. );
      p->set_momentum(newMomentum);
 
      }
  HepMC::fillBarcodesAttribute(evt);
  mcEvtColl->push_back(evt);
  
  // End of execution for each event
  return StatusCode::SUCCESS;
}

◆ extraDeps_update_handler()

void AthCommonDataStore< AthCommonMsg< Algorithm > >::extraDeps_update_handler ( Gaudi::Details::PropertyBase & ExtraDeps )

protectedinherited

Add StoreName to extra input/output deps as needed.

use the logic of the VarHandleKey to parse the DataObjID keys supplied via the ExtraInputs and ExtraOuputs Properties to add the StoreName if it's not explicitly given

◆ extraOutputDeps()

const DataObjIDColl & AthAlgorithm::extraOutputDeps ( ) const

overridevirtualinherited

Return the list of extra output dependencies.

This list is extended to include symlinks implied by inheritance relations.

Definition at line 50 of file AthAlgorithm.cxx.

{
  // If we didn't find any symlinks to add, just return the collection
  // from the base class.  Otherwise, return the extended collection.
  if (!m_extendedExtraObjects.empty()) {
    return m_extendedExtraObjects;
  }
  return Algorithm::extraOutputDeps();
}

◆ finalize()

StatusCode ReadHepEvtFromAscii::finalize ( )

overridevirtual

Definition at line 158 of file ReadHepEvtFromAscii.cxx.

                                         {
 
  msg(MSG::INFO) << ">>> ReadHepEvtFromAscii from finalize" << endmsg;
 
  if(m_file.is_open()) m_file.close();
  // End of finalization step
  return StatusCode::SUCCESS;
 
}

◆ initialize()

StatusCode ReadHepEvtFromAscii::initialize ( )

overridevirtual

Definition at line 85 of file ReadHepEvtFromAscii.cxx.

                                          {
 
  msg(MSG::INFO) << ">>> ReadHepEvtFromAscii from Initialize" << endmsg;
 
#ifdef HEPMC3
//These things are not present
#else
 
  HepMC::HEPEVT_Wrapper::set_sizeof_int(4);
  HepMC::HEPEVT_Wrapper::set_sizeof_real(8);
  HepMC::HEPEVT_Wrapper::set_max_number_entries(10000);
  
#endif
  // Initialize input file
  m_file=std::ifstream(m_input_file.c_str());
  if( !m_file.is_open() ) return StatusCode::FAILURE;
  // Initialization terminated
  return StatusCode::SUCCESS;
}

◆ inputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< Algorithm > >::inputHandles ( ) const

overridevirtualinherited

Return this algorithm's input handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

◆ msg()

MsgStream & AthCommonMsg< Algorithm >::msg ( ) const

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

◆ msgLvl()

bool AthCommonMsg< Algorithm >::msgLvl ( const MSG::Level lvl ) const

inlineinherited

Definition at line 30 of file AthCommonMsg.h.

                                               {
    return this->msgLevel(lvl);
  }

◆ outputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< Algorithm > >::outputHandles ( ) const

overridevirtualinherited

Return this algorithm's output handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

◆ read_hepevt_event_header()

bool ReadHepEvtFromAscii::read_hepevt_event_header ( )

private

This class is only needed for HepMC2-based builds.

Definition at line 22 of file ReadHepEvtFromAscii.cxx.

{
    const size_t       max_e_buffer_size=512;
    char buf_e[max_e_buffer_size];
    bool eventline=false;
    int im=0, pm=0;
    while(!eventline)
    {
        m_file.getline(buf_e,max_e_buffer_size);
        if( strlen(buf_e) == 0 ) return false;
        std::stringstream st_e(buf_e);
        char attr=' ';
        eventline=false;
        while (!eventline)
        {
            if (!(st_e>>attr)) break;
            if (attr==' ') continue;
            else eventline=false;
            if (attr=='E')
            {
                eventline=static_cast<bool>(st_e>>im>>pm);
            }
        }
    }
    HepMC::HEPEVT_Wrapper::set_event_number(im);
    HepMC::HEPEVT_Wrapper::set_number_entries(pm);
    return eventline;
}

◆ read_hepevt_particle()

bool ReadHepEvtFromAscii::read_hepevt_particle ( int i )

private

Definition at line 50 of file ReadHepEvtFromAscii.cxx.

{
    static constexpr size_t max_p_buffer_size=512;
    static constexpr size_t max_v_buffer_size=512;
    char buf_p[max_p_buffer_size];
    char buf_v[max_v_buffer_size];
    std::array<int, 6> intcodes {};
    std::array<double, 5> fltcodes1 {};
    std::array<double, 4> fltcodes2 {};
    m_file.getline(buf_p,max_p_buffer_size);
    if( strlen(buf_p) == 0 ) return false;
    m_file.getline(buf_v,max_v_buffer_size);
    if( strlen(buf_v) == 0 ) return false;
    std::stringstream st_p(buf_p);
    std::stringstream st_v(buf_v);
    if (!static_cast<bool>(st_p>>intcodes[0]>>intcodes[1]>>intcodes[2]>>intcodes[3]>>intcodes[4]>>intcodes[5]>>fltcodes1[0]>>fltcodes1[1]>>fltcodes1[2]>>fltcodes1[3]>>fltcodes1[4])) {     return false;}
    if (!static_cast<bool>(st_v>>fltcodes2[0]>>fltcodes2[1]>>fltcodes2[2]>>fltcodes2[3])) { return false;}
    HepMC::HEPEVT_Wrapper::set_status(i,intcodes[0]);
    HepMC::HEPEVT_Wrapper::set_id(i,intcodes[1]);
    HepMC::HEPEVT_Wrapper::set_parents(i,intcodes[2],std::max(intcodes[2],intcodes[3]));/* Pythia writes second mother 0*/
    HepMC::HEPEVT_Wrapper::set_children(i,intcodes[4],intcodes[5]);
    HepMC::HEPEVT_Wrapper::set_momentum(i,fltcodes1[0],fltcodes1[1],fltcodes1[2],fltcodes1[3]);
    HepMC::HEPEVT_Wrapper::set_mass(i,fltcodes1[4]);
    HepMC::HEPEVT_Wrapper::set_position(i,fltcodes2[0],fltcodes2[1],fltcodes2[2],fltcodes2[3]);
    return true;
}

◆ renounce()

std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void > AthCommonDataStore< AthCommonMsg< Algorithm > >::renounce ( T & h )

inlineprotectedinherited

Definition at line 380 of file AthCommonDataStore.h.

  {
    h.renounce();
    PBASE::renounce (h);
  }

◆ renounceArray()

void AthCommonDataStore< AthCommonMsg< Algorithm > >::renounceArray ( SG::VarHandleKeyArray & handlesArray )

inlineprotectedinherited

remove all handles from I/O resolution

Definition at line 364 of file AthCommonDataStore.h.

                                                          {
    handlesArray.renounce();
  }

◆ sysInitialize()

StatusCode AthAlgorithm::sysInitialize ( )

overridevirtualinherited

Override sysInitialize.

Override sysInitialize from the base class.

Loop through all output handles, and if they're WriteCondHandles, automatically register them and this Algorithm with the CondSvc

Scan through all outputHandles, and if they're WriteCondHandles, register them with the CondSvc

Reimplemented from AthCommonDataStore< AthCommonMsg< Algorithm > >.

Reimplemented in AthAnalysisAlgorithm, AthFilterAlgorithm, AthHistogramAlgorithm, and PyAthena::Alg.

Definition at line 66 of file AthAlgorithm.cxx.

                                       {
  StatusCode sc=AthCommonDataStore<AthCommonMsg<Algorithm>>::sysInitialize();
 
  if (sc.isFailure()) {
    return sc;
  }
  ServiceHandle<ICondSvc> cs("CondSvc",name());
  for (auto h : outputHandles()) {
    if (h->isCondition() && h->mode() == Gaudi::DataHandle::Writer) {
      // do this inside the loop so we don't create the CondSvc until needed
      if ( cs.retrieve().isFailure() ) {
        ATH_MSG_WARNING("no CondSvc found: won't autoreg WriteCondHandles");
        return StatusCode::SUCCESS;
      }
      if (cs->regHandle(this,*h).isFailure()) {
        sc = StatusCode::FAILURE;
        ATH_MSG_ERROR("unable to register WriteCondHandle " << h->fullKey()
                      << " with CondSvc");
      }
    }
  }
  return sc;
}

◆ sysStart()

virtual StatusCode AthCommonDataStore< AthCommonMsg< Algorithm > >::sysStart ( )

overridevirtualinherited

Handle START transition.

We override this in order to make sure that conditions handle keys can cache a pointer to the conditions container.

◆ updateVHKA()

void AthCommonDataStore< AthCommonMsg< Algorithm > >::updateVHKA ( Gaudi::Details::PropertyBase & )

inlineinherited

Definition at line 308 of file AthCommonDataStore.h.

                                               {
    // debug() << "updateVHKA for property " << p.name() << " " << p.toString() 
    //         << "  size: " << m_vhka.size() << endmsg;
    for (auto &a : m_vhka) {
      std::vector<SG::VarHandleKey*> keys = a->keys();
      for (auto k : keys) {
        k->setOwner(this);
      }
    }
  }

Member Data Documentation

◆ m_detStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< Algorithm > >::m_detStore

privateinherited

Pointer to StoreGate (detector store by default)

Definition at line 393 of file AthCommonDataStore.h.

◆ m_evtStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< Algorithm > >::m_evtStore

privateinherited

Pointer to StoreGate (event store by default)

Definition at line 390 of file AthCommonDataStore.h.

◆ m_extendedExtraObjects

DataObjIDColl AthAlgorithm::m_extendedExtraObjects

privateinherited

Definition at line 79 of file AthAlgorithm.h.

◆ m_file

std::ifstream ReadHepEvtFromAscii::m_file

private

Definition at line 22 of file ReadHepEvtFromAscii.h.

◆ m_input_file

std::string ReadHepEvtFromAscii::m_input_file

private

Definition at line 21 of file ReadHepEvtFromAscii.h.

◆ m_key

std::string ReadHepEvtFromAscii::m_key

private

Definition at line 20 of file ReadHepEvtFromAscii.h.

◆ m_varHandleArraysDeclared

bool AthCommonDataStore< AthCommonMsg< Algorithm > >::m_varHandleArraysDeclared

privateinherited

Definition at line 399 of file AthCommonDataStore.h.

◆ m_vhka

std::vector<SG::VarHandleKeyArray*> AthCommonDataStore< AthCommonMsg< Algorithm > >::m_vhka

privateinherited

Definition at line 398 of file AthCommonDataStore.h.

The documentation for this class was generated from the following files:

Public Member Functions

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ StoreGateSvc_t

Constructor & Destructor Documentation

◆ ReadHepEvtFromAscii()

Member Function Documentation

◆ declareGaudiProperty()

◆ declareProperty()

◆ detStore()

◆ evtStore()

◆ execute()

◆ extraDeps_update_handler()

◆ extraOutputDeps()

◆ finalize()

◆ initialize()

◆ inputHandles()

◆ msg()

◆ msgLvl()

◆ outputHandles()

◆ read_hepevt_event_header()

◆ read_hepevt_particle()

◆ renounce()

◆ renounceArray()

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

Member Data Documentation

◆ m_detStore

◆ m_evtStore

◆ m_extendedExtraObjects

◆ m_file

◆ m_input_file

◆ m_key

◆ m_varHandleArraysDeclared

◆ m_vhka