Implementation for the xAOD truth meta data weight tool. More...

#include <PMGTruthWeightTool.h>

Inheritance diagram for PMGTools::PMGTruthWeightTool:

Collaboration diagram for PMGTools::PMGTruthWeightTool:

Public Types
Definition of the StoreGate-like object's definition
typedef ServiceHandle< StoreGateSvc >	MetaStore_t
	Type of the metadata store object in Athena.
typedef const ServiceHandle< StoreGateSvc > &	MetaStorePtr_t
	Type of the metadata store pointer in standalone mode.

Public Member Functions
	PMGTruthWeightTool (const std::string &name)
	Create a proper constructor for Athena.
virtual StatusCode	sysInitialize ()
	Function initialising the tool in the correct way in Athena.
virtual void	print () const
	Print the state of the tool.
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
Function(s) implementing the asg::IAsgTool interface
virtual StatusCode	initialize () override
	Function initialising the tool.
Function(s) implementing the IPMGTruthWeightTool interface
virtual const std::vector< std::string > &	getWeightNames () const override
	Implements interface from IPMGTruthWeightTool.
virtual float	getWeight (const xAOD::EventInfo *evtInfo, const std::string &weightName) const override
	Implements interface from IPMGTruthWeightTool.
virtual bool	hasWeight (const std::string &weightName) const override
	Implements interface from IPMGTruthWeightTool.
virtual float	getSysWeight (const xAOD::EventInfo *evtInfo, const CP::SystematicSet &sys) const override
	Implements interface from IPMGTruthWeightTool.
virtual size_t	getSysWeightIndex (const CP::SystematicSet &sys) const override
	Implements interface from IPMGTruthWeightTool.
Function(s) implementing the ISystematicsTool interface
virtual CP::SystematicSet	affectingSystematics () const override
	Implements interface from ISystematicsTool.
virtual CP::SystematicSet	recommendedSystematics () const override
	Implements interface from ISystematicsTool.
Functions providing access to the input/output metadata
MetaStorePtr_t	inputMetaStore () const
	Accessor for the input metadata store.
MetaStorePtr_t	outputMetaStore () const
	Accessor for the output metadata store.
Additional helper functions, not directly mimicking Athena
template<class T>
const T *	getProperty (const std::string &name) const
	Get one of the tool's properties.
const std::string &	msg_level_name () const __attribute__((deprecated))
	A deprecated function for getting the message level's name.
const std::string &	getName (const void *ptr) const
	Get the name of an object that is / should be in the event store.
SG::sgkey_t	getKey (const void *ptr) const
	Get the (hashed) key of an object that is in the event store.

Protected Member Functions
StatusCode	getMCChannelNumber (uint32_t &mcChannelNumber)
	Helper function for retrieving MC channel number from file metadata.
StatusCode	loadMetaData ()
	Loads weight information from xAOD::TruthMetaDataContainer.
StatusCode	loadPOOLMetaData ()
	Loads weight information from POOL using HepMCWeightNames.
StatusCode	validateWeightLocationCaches ()
	Validate weight caches.
void	clearWeightLocationCaches ()
	Clear caches.
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.
Callback function(s) from AsgMetadataTool
virtual StatusCode	beginInputFile () override
	Function called when a new input file is opened.
Callback functions helping in metadata reading/writing
void	setUseIncidents (const bool flag)
virtual void	handle (const Incident &inc)
	Function receiving incidents from IncidentSvc/TEvent.
virtual StatusCode	endInputFile ()
	Function called when the currently open input file got completely processed.
virtual StatusCode	beginEvent ()
	Function called when a new events is loaded.
virtual StatusCode	metaDataStop ()
	Function called when the tool should write out its metadata.

Protected Attributes
std::string	m_metaName
	Stores the meta data record name.
uint32_t	m_mcChannelNumber {}
	Current MC channel number.
const xAOD::TruthMetaDataContainer *	m_metaDataContainer {nullptr}
	Ptr to the meta data container for this file.
bool	m_useChannelZeroInMetaData {false}
	Flag to indicate whether the xAOD::TruthMetaData objects have incorrect McChannelNumber.
std::vector< std::string >	m_weightNames
	Available weight names for this file.
std::unordered_map< std::string, size_t >	m_weightIndices
	Weight names to indices of available weights in this file.
CP::SystematicsCache< std::size_t >	m_calibCache {this}
	Systematics to indices of available weights.

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Private Attributes
MetaStore_t	m_inputMetaStore
	Object accessing the input metadata store.
MetaStore_t	m_outputMetaStore
	Object accessing the output metadata store.
bool	m_beginInputFileCalled
	Flag helping to discover when the tool misses the opening of the first input file.
bool	m_useIncidents
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

Implementation for the xAOD truth meta data weight tool.

Author: James Robinson james.nosp@m..rob.nosp@m.inson.nosp@m.@cer.nosp@m.n.ch

Definition at line 25 of file PMGTruthWeightTool.h.

Member Typedef Documentation

◆ MetaStore_t

typedef ServiceHandle< StoreGateSvc > asg::AsgMetadataTool::MetaStore_t

inherited

Type of the metadata store object in Athena.

Definition at line 66 of file AsgMetadataTool.h.

◆ MetaStorePtr_t

typedef const ServiceHandle< StoreGateSvc >& asg::AsgMetadataTool::MetaStorePtr_t

inherited

Type of the metadata store pointer in standalone mode.

Definition at line 68 of file AsgMetadataTool.h.

◆ StoreGateSvc_t

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

privateinherited

Definition at line 388 of file AthCommonDataStore.h.

Constructor & Destructor Documentation

◆ PMGTruthWeightTool()

PMGTools::PMGTruthWeightTool::PMGTruthWeightTool ( const std::string & name )

Create a proper constructor for Athena.

Create a constructor for standalone usage

Definition at line 22 of file PMGTruthWeightTool.cxx.

    : asg::AsgMetadataTool(name)
  {
    declareProperty("MetaObjectName", m_metaName = "TruthMetaData");
  }

Member Function Documentation

◆ affectingSystematics()

CP::SystematicSet PMGTools::PMGTruthWeightTool::affectingSystematics ( ) const

overridevirtual

Implements interface from ISystematicsTool.

Implements CP::IReentrantSystematicsTool.

Definition at line 154 of file PMGTruthWeightTool.cxx.

  {
    return m_calibCache.affectingSystematics();
  }

◆ beginEvent()

StatusCode asg::AsgMetadataTool::beginEvent ( )

protectedvirtualinherited

Function called when a new events is loaded.

Dummy implementation that can be overridden by the derived tool.

Reimplemented in AsgElectronEfficiencyCorrectionTool, TauAnalysisTools::CommonSmearingTool, TauAnalysisTools::DiTauEfficiencyCorrectionsTool, TauAnalysisTools::DiTauSelectionTool, TauAnalysisTools::TauEfficiencyCorrectionsTool, TauAnalysisTools::TauSelectionTool, Trig::TrigConfBunchCrossingTool, Trig::TrigDecisionTool, Trig::xAODBunchCrossingTool, TrigConf::xAODConfigTool, and xAODMaker::TriggerMenuMetaDataTool.

Definition at line 201 of file AsgMetadataTool.cxx.

                                          {
 
      // Return gracefully:
      return StatusCode::SUCCESS;
   }

◆ beginInputFile()

StatusCode PMGTools::PMGTruthWeightTool::beginInputFile ( )

overrideprotectedvirtual

Function called when a new input file is opened.

Reimplemented from asg::AsgMetadataTool.

Definition at line 183 of file PMGTruthWeightTool.cxx.

  {
    // Detect possible MC channel number change
    uint32_t mcChannelNumber;
    ATH_CHECK(getMCChannelNumber(mcChannelNumber));
 
    if (m_mcChannelNumber != uint32_t(-1) && mcChannelNumber != uint32_t(-1) && mcChannelNumber != m_mcChannelNumber) {
      ATH_MSG_ERROR("MC channel number from a new file does not match the previously processed files.");
      return StatusCode::FAILURE;
    }
 
    return StatusCode::SUCCESS;
  }

◆ clearWeightLocationCaches()

void PMGTools::PMGTruthWeightTool::clearWeightLocationCaches ( )

protected

Clear caches.

Definition at line 271 of file PMGTruthWeightTool.cxx.

                                                     {
    m_weightNames.clear();
    m_weightIndices.clear();
  }

◆ declareGaudiProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< AlgTool > >::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< AlgTool > >::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< AlgTool > >::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< AlgTool > >::m_detStore

StoreGateSvc_t m_detStore

Definition AthCommonDataStore.h:393

◆ endInputFile()

StatusCode asg::AsgMetadataTool::endInputFile ( )

protectedvirtualinherited

Function called when the currently open input file got completely processed.

Dummy implementation that can be overridden by the derived tool.

Reimplemented in BookkeeperDumperTool, BookkeeperTool, xAODMaker::TriggerMenuMetaDataTool, and xAODMaker::TruthMetaDataTool.

Definition at line 193 of file AsgMetadataTool.cxx.

                                            {
 
      // Return gracefully:
      return StatusCode::SUCCESS;
   }

◆ evtStore()

ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< AlgTool > >::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< AlgTool > >::m_evtStore

StoreGateSvc_t m_evtStore

Definition AthCommonDataStore.h:390

◆ extraDeps_update_handler()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::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

◆ getKey()

SG::sgkey_t asg::AsgTool::getKey ( const void * ptr ) const

inherited

Get the (hashed) key of an object that is in the event store.

This is a bit of a special one. StoreGateSvc and xAOD::TEvent both provide ways for getting the SG::sgkey_t key for an object that is in the store, based on a bare pointer. But they provide different interfaces for doing so.

In order to allow tools to efficiently perform this operation, they can use this helper function.

See also: asg::AsgTool::getName

Parameters

ptr	The bare pointer to the object that the event store should know about

Returns: The hashed key of the object in the store. If not found, an invalid (zero) key.

Definition at line 119 of file AsgTool.cxx.

                                                    {
 
#ifdef XAOD_STANDALONE
      // In case we use @c xAOD::TEvent, we have a direct function call
      // for this.
      return evtStore()->event()->getKey( ptr );
#else
      const SG::DataProxy* proxy = evtStore()->proxy( ptr );
      return ( proxy == nullptr ? 0 : proxy->sgkey() );
#endif // XAOD_STANDALONE
   }

◆ getMCChannelNumber()

StatusCode PMGTools::PMGTruthWeightTool::getMCChannelNumber ( uint32_t & mcChannelNumber )

protected

Helper function for retrieving MC channel number from file metadata.

Definition at line 166 of file PMGTruthWeightTool.cxx.

                                                                             {
    mcChannelNumber = static_cast<uint32_t>(-1);
 
    // Try to load MC channel number from file metadata
    ATH_MSG_INFO("Attempting to retrieve MC channel number...");
    const xAOD::FileMetaData *fmd = nullptr;
    if (inputMetaStore()->contains<xAOD::FileMetaData>("FileMetaData")) {
      ATH_CHECK(inputMetaStore()->retrieve(fmd, "FileMetaData"));
      float fltChannelNumber(-1);
      if (fmd->value(xAOD::FileMetaData::mcProcID, fltChannelNumber)) {
        mcChannelNumber = static_cast<uint32_t>(fltChannelNumber);
        return StatusCode::SUCCESS;
      }
    }
    return StatusCode::FAILURE;
  }

◆ getName()

const std::string & asg::AsgTool::getName ( const void * ptr ) const

inherited

Get the name of an object that is / should be in the event store.

This is a bit of a special one. StoreGateSvc and xAOD::TEvent both provide ways for getting the std::string name for an object that is in the store, based on a bare pointer. But they provide different interfaces for doing so.

In order to allow tools to efficiently perform this operation, they can use this helper function.

See also: asg::AsgTool::getKey

Parameters

ptr	The bare pointer to the object that the event store should know about

Returns: The string name of the object in the store. If not found, an empty string.

Definition at line 106 of file AsgTool.cxx.

                                                            {
 
#ifdef XAOD_STANDALONE
      // In case we use @c xAOD::TEvent, we have a direct function call
      // for this.
      return evtStore()->event()->getName( ptr );
#else
      const SG::DataProxy* proxy = evtStore()->proxy( ptr );
      static const std::string dummy = "";
      return ( proxy == nullptr ? dummy : proxy->name() );
#endif // XAOD_STANDALONE
   }

◆ getProperty()

template<class T>

const T * asg::AsgTool::getProperty ( const std::string & name ) const

inherited

Get one of the tool's properties.

◆ getSysWeight()

float PMGTools::PMGTruthWeightTool::getSysWeight	(	const xAOD::EventInfo *	evtInfo,
		const CP::SystematicSet &	sys ) const

overridevirtual

Implements interface from IPMGTruthWeightTool.

Implements PMGTools::IPMGTruthWeightTool.

Definition at line 138 of file PMGTruthWeightTool.cxx.

  {
    const std::size_t *res;
    ANA_CHECK_THROW (m_calibCache.get(sys,res));
    return evtInfo->mcEventWeight(*res);
  }

◆ getSysWeightIndex()

size_t PMGTools::PMGTruthWeightTool::getSysWeightIndex ( const CP::SystematicSet & sys ) const

overridevirtual

Implements interface from IPMGTruthWeightTool.

Implements PMGTools::IPMGTruthWeightTool.

Definition at line 146 of file PMGTruthWeightTool.cxx.

  {
    const std::size_t *res;
    ANA_CHECK_THROW (m_calibCache.get(sys,res));
    return *res;
  }

◆ getWeight()

float PMGTools::PMGTruthWeightTool::getWeight	(	const xAOD::EventInfo *	evtInfo,
		const std::string &	weightName ) const

overridevirtual

Implements interface from IPMGTruthWeightTool.

Implements PMGTools::IPMGTruthWeightTool.

Definition at line 109 of file PMGTruthWeightTool.cxx.

                                                                                                     {
    // Return appropriate weight from EventInfo: this should be identical to the TruthEvent
    try {
      return evtInfo->mcEventWeight(m_weightIndices.at(weightName));
    } catch (const std::out_of_range& e) {
      // Before throwing an exception, try to recover with bad naming conventions
      std::string strippedName = std::regex_replace(weightName, std::regex(" "), "_");
      std::transform(strippedName.begin(), strippedName.end(), strippedName.begin(),
        [](unsigned char c){ return std::tolower(c); });
      for (const std::string &weight : m_weightNames) {
        std::string modifiedName = std::regex_replace(weight, std::regex(" "), "_");
        std::transform(modifiedName.begin(), modifiedName.end(), modifiedName.begin(),
          [](unsigned char c){ return std::tolower(c); });
        if (strippedName == modifiedName){
          ATH_MSG_WARNING("Using weight name \"" << weight << "\" instead of requested \"" << weightName << "\"");
          return getWeight(evtInfo, weight);
        }
      }
      ATH_MSG_FATAL("Weight \"" + weightName + "\" could not be found");
      throw std::runtime_error(name() + ": Weight \"" + weightName + "\" could not be found");
    }
  }

◆ getWeightNames()

const std::vector< std::string > & PMGTools::PMGTruthWeightTool::getWeightNames ( ) const

overridevirtual

Implements interface from IPMGTruthWeightTool.

Implements PMGTools::IPMGTruthWeightTool.

Definition at line 104 of file PMGTruthWeightTool.cxx.

                                                                       {
    return m_weightNames;
  }

◆ handle()

void asg::AsgMetadataTool::handle ( const Incident & inc )

protectedvirtualinherited

Function receiving incidents from IncidentSvc/TEvent.

Reimplemented in Trig::TrigDecisionTool.

Definition at line 135 of file AsgMetadataTool.cxx.

                                                     {
 
      // Tell the user what's happening:
      ATH_MSG_VERBOSE( "Callback received with incident: " << inc.type() );
 
      // Call the appropriate member function:
      if( inc.type() == IncidentType::BeginInputFile ) {
        m_beginInputFileCalled = true;
        if( beginInputFile().isFailure() ) {
          ATH_MSG_FATAL( "Failed to call beginInputFile()" );
          throw std::runtime_error( "Couldn't call beginInputFile()" );
         }
      } else if( inc.type() == IncidentType::EndInputFile ) {
        if( endInputFile().isFailure() ) {
          ATH_MSG_FATAL( "Failed to call endInputFile()" );
          throw std::runtime_error( "Couldn't call endInputFile()" );
         }
      } else if( inc.type() == IncidentType::BeginEvent ) {
         // If the tool didn't catch the begin input file incident for the
         // first input file of the job, then call the appropriate function
         // now.
         if( ! m_beginInputFileCalled ) {
            m_beginInputFileCalled = true;
            if( beginInputFile().isFailure() ) {
               ATH_MSG_FATAL( "Failed to call beginInputFile()" );
               throw std::runtime_error( "Couldn't call beginInputFile()" );
            }
         }
         if( beginEvent().isFailure() ) {
            ATH_MSG_FATAL( "Failed to call beginEvent()" );
            throw std::runtime_error( "Couldn't call beginEvent()" );
         }
 
     #ifdef XAOD_STANDALONE
      } else if( inc.type() == IncidentType::MetaDataStop ) {
         if( metaDataStop().isFailure() ) {
            ATH_MSG_FATAL( "Failed to call metaDataStop()" );
            throw std::runtime_error( "Couldn't call metaDataStop()" );
         }
         
     #endif // XAOD_STANDALONE
      } else {
         ATH_MSG_WARNING( "Unknown incident type received in AsgMetaDataTool: " << inc.type() );
      }
 
      return;
   }

◆ hasWeight()

bool PMGTools::PMGTruthWeightTool::hasWeight ( const std::string & weightName ) const

overridevirtual

Implements interface from IPMGTruthWeightTool.

Implements PMGTools::IPMGTruthWeightTool.

Definition at line 133 of file PMGTruthWeightTool.cxx.

                                                                      {
    return (m_weightIndices.count(weightName) > 0);
  }

◆ initialize()

StatusCode PMGTools::PMGTruthWeightTool::initialize ( void )

overridevirtual

Function initialising the tool.

Reimplemented from asg::AsgTool.

Definition at line 29 of file PMGTruthWeightTool.cxx.

  {
    ATH_MSG_DEBUG("Initialising...");
 
    ATH_MSG_INFO("Attempting to retrieve truth meta data from the first file...");
 
    // Clear cached weights
    clearWeightLocationCaches();
 
    CP::SystematicSet affSysts = CP::SystematicSet();
    m_calibCache.initialize (std::move (affSysts),
                             [this] (const CP::SystematicSet& sys,
                                     std::size_t& idx) {
                               if (!sys.name().empty()) ATH_MSG_WARNING("Mapping for " << sys.name() << " missing, setting to index 0.");
                               idx = 0;
                               return StatusCode::SUCCESS;
                             });
 
    // Try to load MC channel number from file metadata
    ATH_CHECK(getMCChannelNumber(m_mcChannelNumber));
    
    if (m_mcChannelNumber == uint32_t(-1)) {
      ATH_MSG_WARNING("... MC channel number could not be loaded");
    } else {
      ATH_MSG_INFO("... MC channel number identified as " << m_mcChannelNumber);
    }
 
    // Start by trying to load metadata from the store
    m_metaDataContainer = nullptr;
    if (inputMetaStore()->contains<xAOD::TruthMetaDataContainer>(m_metaName)) {
      ATH_CHECK(inputMetaStore()->retrieve(m_metaDataContainer, m_metaName));
      ATH_MSG_INFO("Loaded xAOD::TruthMetaDataContainer");
 
      // Check for incorrectly stored McChannelNumber
      m_useChannelZeroInMetaData = true;
      for (auto truthMetaData : *m_metaDataContainer) {
        if (truthMetaData->mcChannelNumber() != 0) { m_useChannelZeroInMetaData = false; }
      }
      // If we only have one metadata item take MC channel from there if needed
      if (m_mcChannelNumber == uint32_t(-1) && m_metaDataContainer->size() == 1) {
        m_mcChannelNumber = m_metaDataContainer->at(0)->mcChannelNumber();
        ATH_MSG_WARNING("... MC channel number taken from the metadata as " << m_mcChannelNumber);
      }
      if (m_useChannelZeroInMetaData) { ATH_MSG_WARNING("MC channel number in TruthMetaData is invalid - assuming that channel 0 has the correct information."); }
 
      // Load metadata from TruthMetaDataContainer if we have a valid channel number or if we're going to use 0 anyway
      // ... otherwise wait until we can load a channel number from EventInfo
      if (m_mcChannelNumber != uint32_t(-1) || m_useChannelZeroInMetaData) {
        if (loadMetaData().isFailure()) {
          ATH_MSG_ERROR("Could not load metadata for MC channel number " << m_mcChannelNumber);
          return StatusCode::FAILURE;
        }
      }
    } else {
      // ... now try to load the weight container using the POOL metadata (not possible in AnalysisBase)
      // see https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/AthAnalysisBase#How_to_read_the_truth_weight_nam
      if (loadPOOLMetaData().isFailure()) {
        ATH_MSG_ERROR("Could not load POOL HepMCWeightNames");
        return StatusCode::FAILURE;
      }
    }
    
    // Add the affecting systematics to the global registry
    CP::SystematicRegistry& registry = CP::SystematicRegistry::getInstance();
    if (!registry.registerSystematics(*this)) {
      ATH_MSG_ERROR("unable to register the systematics");
      return StatusCode::FAILURE;
    }
 
    ATH_MSG_DEBUG("Successfully initialized!");
 
    return StatusCode::SUCCESS;
  }

◆ inputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< AlgTool > >::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.

◆ inputMetaStore()

AsgMetadataTool::MetaStorePtr_t asg::AsgMetadataTool::inputMetaStore ( ) const

inherited

Accessor for the input metadata store.

Definition at line 93 of file AsgMetadataTool.cxx.

                                                                       {
 
#ifdef XAOD_STANDALONE
      return &m_inputMetaStore;
#else // XAOD_STANDALONE
      return m_inputMetaStore;
#endif // XAOD_STANDALONE
   }

◆ loadMetaData()

StatusCode PMGTools::PMGTruthWeightTool::loadMetaData ( )

protected

Loads weight information from xAOD::TruthMetaDataContainer.

Definition at line 198 of file PMGTruthWeightTool.cxx.

                                              {
    // Find the correct truth meta data object
    uint32_t targetChannelNumber = (m_useChannelZeroInMetaData ? 0 : m_mcChannelNumber);
    ATH_MSG_INFO("Attempting to load weight meta data from xAOD TruthMetaData for channel " << targetChannelNumber);
    auto itTruthMetaDataPtr = std::find_if(m_metaDataContainer->begin(), m_metaDataContainer->end(),
      [targetChannelNumber] (const auto& it) { return it->mcChannelNumber() == targetChannelNumber; }
    );
 
    // If no such object is found then return
    if (itTruthMetaDataPtr == m_metaDataContainer->end()) {
      ATH_MSG_ERROR("Could not load weight meta data!");
      return StatusCode::FAILURE;
    }
 
    // Update cached weight data
    const std::vector<std::string> &truthWeightNames = (*itTruthMetaDataPtr)->weightNames();
    for(std::size_t idx = 0; idx < truthWeightNames.size(); ++idx ) {
      m_weightNames.push_back(truthWeightNames.at(idx));
      m_weightIndices[truthWeightNames.at(idx)] = idx;
 
      std::string sysName = weightNameWithPrefix(truthWeightNames.at(idx));
      if (!sysName.empty()) {
        ANA_CHECK (m_calibCache.add(CP::SystematicVariation(sysName),idx));
      }
      
      ANA_MSG_VERBOSE("    " << truthWeightNames.at(idx) << " " << sysName);
    }
    return this->validateWeightLocationCaches();
  }

◆ loadPOOLMetaData()

StatusCode PMGTools::PMGTruthWeightTool::loadPOOLMetaData ( )

protected

Loads weight information from POOL using HepMCWeightNames.

Definition at line 229 of file PMGTruthWeightTool.cxx.

                                                  {
    // AnalysisBase can only use the xAOD::TruthMetaDataContainer, so skip this
#ifdef XAOD_STANDALONE
    return StatusCode::SUCCESS;
#else
    ATH_MSG_INFO("Looking for POOL HepMC IOVMetaData...");
    std::map<std::string, int> hepMCWeightNamesMap;
    if (AAH::retrieveMetadata("/Generation/Parameters", "HepMCWeightNames", hepMCWeightNamesMap, inputMetaStore()).isFailure()) {
      ATH_MSG_FATAL("Cannot access metadata " << m_metaName << " and failed to get names from IOVMetadata");
      return StatusCode::FAILURE;
    }
 
    // Use input map to fill the index map and the weight names
    ATH_MSG_INFO("Attempting to load weight meta data from HepMC IOVMetaData container");
    for (auto& kv : hepMCWeightNamesMap) {
      m_weightNames.push_back(kv.first);
      m_weightIndices[kv.first] = kv.second;
 
      std::string sysName = weightNameWithPrefix(kv.first);
      if (!sysName.empty()) {
        ANA_CHECK (m_calibCache.add(CP::SystematicVariation(sysName), kv.second));
      }
 
      ANA_MSG_VERBOSE("    " << kv.first << " " << sysName);
    }
    return this->validateWeightLocationCaches();
#endif // XAOD_STANDALONE
  }

◆ metaDataStop()

StatusCode asg::AsgMetadataTool::metaDataStop ( )

protectedvirtualinherited

Function called when the tool should write out its metadata.

Dummy implementation that can be overridden by the derived tool.

Reimplemented in BookkeeperDumperTool, BookkeeperTool, xAODMaker::TriggerMenuMetaDataTool, and xAODMaker::TruthMetaDataTool.

Definition at line 209 of file AsgMetadataTool.cxx.

                                            {
 
      // Return gracefully:
      return StatusCode::SUCCESS;
   }

◆ msg()

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

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

◆ msg_level_name()

const std::string & asg::AsgTool::msg_level_name ( ) const

inherited

A deprecated function for getting the message level's name.

Instead of using this, weirdly named function, user code should get the string name of the current minimum message level (in case they really need it...), with:

MSG::name( msg().level() )

This function's name doesn't follow the ATLAS coding rules, and as such will be removed in the not too distant future.

Returns: The string name of the current minimum message level that's printed

Definition at line 101 of file AsgTool.cxx.

                                                  {
 
      return MSG::name( msg().level() );
   }

◆ msgLvl()

bool AthCommonMsg< AlgTool >::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< AlgTool > >::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.

◆ outputMetaStore()

AsgMetadataTool::MetaStorePtr_t asg::AsgMetadataTool::outputMetaStore ( ) const

inherited

Accessor for the output metadata store.

Definition at line 102 of file AsgMetadataTool.cxx.

                                                                        {
 
#ifdef XAOD_STANDALONE
      return &m_outputMetaStore;
#else // XAOD_STANDALONE
      return m_outputMetaStore;
#endif // XAOD_STANDALONE
   }

◆ print()

void asg::AsgTool::print ( ) const

virtualinherited

Print the state of the tool.

Implements asg::IAsgTool.

Reimplemented in AsgHelloTool, HI::HIPileupTool, JetBottomUpSoftDrop, JetConstituentsRetriever, JetDumper, JetFinder, JetFromPseudojet, JetModifiedMassDrop, JetPileupLabelingTool, JetPruner, JetPseudojetRetriever, JetReclusterer, JetReclusteringTool, JetRecTool, JetRecursiveSoftDrop, JetSoftDrop, JetSplitter, JetSubStructureMomentToolsBase, JetToolRunner, JetTrimmer, JetTruthLabelingTool, KtDeltaRTool, and LundVariablesTool.

Definition at line 131 of file AsgTool.cxx.

                             {
 
      ATH_MSG_INFO( "AsgTool " << name() << " @ " << this );
      return;
   }

◆ recommendedSystematics()

CP::SystematicSet PMGTools::PMGTruthWeightTool::recommendedSystematics ( ) const

overridevirtual

Implements interface from ISystematicsTool.

Implements CP::IReentrantSystematicsTool.

Definition at line 160 of file PMGTruthWeightTool.cxx.

  {
    return affectingSystematics();
  }

◆ 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< AlgTool > >::renounce ( T & h )

inlineprotectedinherited

Definition at line 380 of file AthCommonDataStore.h.

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

◆ renounceArray()

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

inlineprotectedinherited

remove all handles from I/O resolution

Definition at line 364 of file AthCommonDataStore.h.

                                                          {
    handlesArray.renounce();
  }

◆ setUseIncidents()

void asg::AsgMetadataTool::setUseIncidents ( const bool flag )

inlineprotectedinherited

Definition at line 132 of file AsgMetadataTool.h.

   {
      m_useIncidents = flag;
   }

◆ sysInitialize()

StatusCode asg::AsgMetadataTool::sysInitialize ( )

virtualinherited

Function initialising the tool in the correct way in Athena.

This function is used to set up the callbacks from IncidentSvc in Athena at the right time during initialisation, without the user having to do anything special in his/her code.

Reimplemented from AthCommonDataStore< AthCommonMsg< AlgTool > >.

Definition at line 115 of file AsgMetadataTool.cxx.

                                             {
 
#ifndef XAOD_STANDALONE
      if (m_useIncidents) {
         // Connect to the IncidentSvc:
         ServiceHandle< IIncidentSvc > incSvc( "IncidentSvc", name() );
         ATH_CHECK( incSvc.retrieve() );
 
         // Set up the right callbacks: don't rethrow exceptions, any failure and we should end
         incSvc->addListener( this, IncidentType::BeginEvent, 0, false );
      }
      // Let the base class do its thing:
      ATH_CHECK( AlgTool::sysInitialize() );
 
#endif // not XAOD_STANDALONE
 
      // Return gracefully:
      return StatusCode::SUCCESS;
   }

◆ sysStart()

virtual StatusCode AthCommonDataStore< AthCommonMsg< AlgTool > >::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< AlgTool > >::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);
      }
    }
  }

◆ validateWeightLocationCaches()

StatusCode PMGTools::PMGTruthWeightTool::validateWeightLocationCaches ( )

protected

Validate weight caches.

Definition at line 259 of file PMGTruthWeightTool.cxx.

                                                              {
    // Validate weight caches against one another
    if (m_weightNames.size() != m_weightIndices.size()) {
      ATH_MSG_ERROR("Found " << m_weightNames.size() << " but " << m_weightIndices.size() << " weight indices!");
      return StatusCode::FAILURE;
    }
 
    ATH_MSG_INFO("Successfully loaded information about " << m_weightNames.size() << " weights");
    return StatusCode::SUCCESS;
  }

Member Data Documentation

◆ m_beginInputFileCalled

bool asg::AsgMetadataTool::m_beginInputFileCalled

privateinherited

Flag helping to discover when the tool misses the opening of the first input file.

Definition at line 126 of file AsgMetadataTool.h.

◆ m_calibCache

CP::SystematicsCache<std::size_t> PMGTools::PMGTruthWeightTool::m_calibCache {this}

protected

Systematics to indices of available weights.

Definition at line 116 of file PMGTruthWeightTool.h.

116{this};

◆ m_detStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_detStore

privateinherited

Pointer to StoreGate (detector store by default)

Definition at line 393 of file AthCommonDataStore.h.

◆ m_evtStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_evtStore

privateinherited

Pointer to StoreGate (event store by default)

Definition at line 390 of file AthCommonDataStore.h.

◆ m_inputMetaStore

MetaStore_t asg::AsgMetadataTool::m_inputMetaStore

privateinherited

Object accessing the input metadata store.

Definition at line 119 of file AsgMetadataTool.h.

◆ m_mcChannelNumber

uint32_t PMGTools::PMGTruthWeightTool::m_mcChannelNumber {}

protected

Current MC channel number.

Definition at line 101 of file PMGTruthWeightTool.h.

101{};

◆ m_metaDataContainer

const xAOD::TruthMetaDataContainer* PMGTools::PMGTruthWeightTool::m_metaDataContainer {nullptr}

protected

Ptr to the meta data container for this file.

Definition at line 104 of file PMGTruthWeightTool.h.

104{nullptr};

◆ m_metaName

std::string PMGTools::PMGTruthWeightTool::m_metaName

protected

Stores the meta data record name.

Definition at line 98 of file PMGTruthWeightTool.h.

◆ m_outputMetaStore

MetaStore_t asg::AsgMetadataTool::m_outputMetaStore

privateinherited

Object accessing the output metadata store.

Definition at line 121 of file AsgMetadataTool.h.

◆ m_useChannelZeroInMetaData

bool PMGTools::PMGTruthWeightTool::m_useChannelZeroInMetaData {false}

protected

Flag to indicate whether the xAOD::TruthMetaData objects have incorrect McChannelNumber.

Definition at line 107 of file PMGTruthWeightTool.h.

107{false};

◆ m_useIncidents

bool asg::AsgMetadataTool::m_useIncidents

privateinherited

Definition at line 128 of file AsgMetadataTool.h.

◆ m_varHandleArraysDeclared

bool AthCommonDataStore< AthCommonMsg< AlgTool > >::m_varHandleArraysDeclared

privateinherited

Definition at line 399 of file AthCommonDataStore.h.

◆ m_vhka

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

privateinherited

Definition at line 398 of file AthCommonDataStore.h.

◆ m_weightIndices

std::unordered_map<std::string, size_t> PMGTools::PMGTruthWeightTool::m_weightIndices

protected

Weight names to indices of available weights in this file.

Definition at line 113 of file PMGTruthWeightTool.h.

◆ m_weightNames

std::vector<std::string> PMGTools::PMGTruthWeightTool::m_weightNames

protected

Available weight names for this file.

Definition at line 110 of file PMGTruthWeightTool.h.

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

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ MetaStore_t

◆ MetaStorePtr_t

◆ StoreGateSvc_t

Constructor & Destructor Documentation

◆ PMGTruthWeightTool()

Member Function Documentation

◆ affectingSystematics()

◆ beginEvent()

◆ beginInputFile()

◆ clearWeightLocationCaches()

◆ declareGaudiProperty()

◆ declareProperty()

◆ detStore()

◆ endInputFile()

◆ evtStore()

◆ extraDeps_update_handler()

◆ getKey()

◆ getMCChannelNumber()

◆ getName()

◆ getProperty()

◆ getSysWeight()

◆ getSysWeightIndex()

◆ getWeight()

◆ getWeightNames()

◆ handle()

◆ hasWeight()

◆ initialize()

◆ inputHandles()

◆ inputMetaStore()

◆ loadMetaData()

◆ loadPOOLMetaData()

◆ metaDataStop()

◆ msg()

◆ msg_level_name()

◆ msgLvl()

◆ outputHandles()

◆ outputMetaStore()

◆ print()

◆ recommendedSystematics()

◆ renounce()

◆ renounceArray()

◆ setUseIncidents()

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

◆ validateWeightLocationCaches()

Member Data Documentation

◆ m_beginInputFileCalled

◆ m_calibCache

◆ m_detStore

◆ m_evtStore

◆ m_inputMetaStore

◆ m_mcChannelNumber

◆ m_metaDataContainer

◆ m_metaName

◆ m_outputMetaStore

◆ m_useChannelZeroInMetaData

◆ m_useIncidents

◆ m_varHandleArraysDeclared

◆ m_vhka

◆ m_weightIndices

◆ m_weightNames