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# HistogramPersistencySvc Class Reference

HistogramPersistencySvc class implementation definition. More...

`#include <HistogramPersistencySvc.h>`

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List of all members.

## Public Types
typedef std::vector< std::string > | Strings
| the actual type for the vector of strings
typedef std::set< std::string > | Set
| for report: unconverted histograms
## Public Member Functions
PersistencySvc overrides
virtual StatusCode | initialize ()
| Initialize the service.
virtual StatusCode | reinitialize ()
| Reinitialize the service.
virtual StatusCode | finalize ()
| Finalize the service.
virtual StatusCode | createRep (DataObject *pObject, IOpaqueAddress *&refpAddress)
| Implementation of IConverter: Convert the transient object to the requested representation.
: Object implementation
| HistogramPersistencySvc (const std::string &name, ISvcLocator *svc)
| Standard Constructor.
virtual | ~HistogramPersistencySvc ()
| Standard Destructor.
## Protected Attributes
std::string | m_histPersName
| Name of the Hist Pers type.
std::string | m_outputFile
| Name of the outputFile.
Strings | m_convert
| the list of patterns to be converted
Strings | m_exclude
| the list of patterns to be excludes
Set | m_converted
| for the final report: the list of converted histograms
Set | m_excluded
| for the final report: the list of excluded histograms
bool | m_warnings
| Flag to disable warning messages when using external input.
## Friends
class | SvcFactory< HistogramPersistencySvc >
class | Factory< HistogramPersistencySvc, IService *(std::string, ISvcLocator *)>

## Detailed Description

HistogramPersistencySvc class implementation definition.

System: The LHCb Offline System

Package: HistogramPersistencySvc

Dependencies:

- PersistencySvc definition: "Kernel/Interfaces/PersistencySvc.h"

History:

     +---------+----------------------------------------------+---------+
     |    Date |                 Comment                      | Who     |
     +---------+----------------------------------------------+---------+
     | 3/11/98 | Initial version                              | M.Frank |
     +---------+----------------------------------------------+---------+

Author:
  Markus Frank

Version:
  1.0

Definition at line 48 of file HistogramPersistencySvc.h.

## Member Typedef Documentation

typedef std::set<std::string> HistogramPersistencySvc::Set

for report: unconverted histograms

Definition at line 79 of file HistogramPersistencySvc.h.

typedef std::vector<std::string> HistogramPersistencySvc::Strings

the actual type for the vector of strings

Definition at line 77 of file HistogramPersistencySvc.h.

## Constructor & Destructor Documentation

HistogramPersistencySvc::HistogramPersistencySvc | ( | const std::string & | name,
|  | ISvcLocator * | svc
| ) |  |

Standard Constructor.

Definition at line 249 of file HistogramPersistencySvc.cpp.

      :  PersistencySvc(name, svc)
      //
      , m_convert   ()
      , m_exclude   ()
      , m_converted ()
      , m_excluded  ()
      //
    {
      std::vector<std::string> defServices;
      defServices.push_back("RootHistSvc");
      m_svcNames.set(defServices);
      declareProperty ("HistogramPersistency", m_histPersName = "");
      declareProperty ("OutputFile", m_outputFile = "");
      //
      declareProperty
        ("ConvertHistos" , m_convert ,
         "The list of patterns to be accepted for conversion" ) ;
      //
      declareProperty
        ("ExcludeHistos" , m_exclude ,
         "The list of patterns to be excluded for conversion" ) ;
      declareProperty("Warnings",m_warnings=true,
                      "Set this property to false to suppress warning messages");
    }

HistogramPersistencySvc::~HistogramPersistencySvc | ( | ) | `[virtual]`

Standard Destructor.

Definition at line 278 of file HistogramPersistencySvc.cpp.

    {}

## Member Function Documentation

StatusCode HistogramPersistencySvc::createRep | ( | DataObject * | pObject,
|  | IOpaqueAddress *& | refpAddress
| ) |  | `[virtual]`

Implementation of IConverter: Convert the transient object to the requested representation.

Reimplemented from PersistencySvc.

Definition at line 207 of file HistogramPersistencySvc.cpp.

    {
      // enable the conversion
      enable ( true ) ;
      // conversion is possible ?
      if ( "NONE" == m_histPersName )
      {
        enable ( false ) ;
        return PersistencySvc::createRep ( pObj , refpAddr ) ;   // RETURN
      }
      // histogram ?
      if ( 0 != dynamic_cast<AIDA::IBaseHistogram*> ( pObj ) )
      {
        bool select = false ;
        // Empty ConvertHistos property means convert all
        if ( m_convert.empty() ) { select = true ; }
        else
        {
          for ( Strings::const_iterator item = m_convert.begin() ;
                m_convert.end() != item ; ++item )
          { if ( match ( pObj , *item ) ) { select = true ; break ; } }
        }
        // exclude ?
        for ( Strings::const_iterator item = m_exclude.begin() ;
              m_exclude.end() != item && select ; ++item )
        { if ( match ( pObj , *item ) ) { select = false ; break ; } }
        //
        enable ( select ) ;
        //
        const std::string& path = oname ( pObj ) ;
        //
        if ( !select ) { m_excluded.insert  ( path ) ; }
        else           { m_converted.insert ( path ) ; }
      }
      //
      return PersistencySvc::createRep ( pObj , refpAddr ) ;     // RETURN
    }

StatusCode HistogramPersistencySvc::finalize | ( | void | ) | `[virtual]`

Finalize the service.

Reimplemented from PersistencySvc.

Definition at line 53 of file HistogramPersistencySvc.cpp.

    {
      //
      MsgStream log ( msgSvc() , name() );
      if ( !(m_convert.empty() && m_exclude.empty()) )
      { // print message if any of the two properties is used
        log << MSG::INFO  << "Histograms Converted/Excluded: "
            << m_converted.size() << "/" << m_excluded.size() << endmsg ;
      }
      //
      if ( !m_excluded.empty() )
      {
        log << MSG::DEBUG << "Excluded  Histos : #" << m_excluded.size() ;
        for ( Set::const_iterator item = m_excluded.begin() ;
              m_excluded.end() != item ; ++item )
        { log << std::endl << "  '" << (*item) << "'" ; }
        log << endmsg ;
      }
      //
      if ( !m_converted.empty() )
      {
        log << MSG::DEBUG << "Converted Histos : #" << m_converted.size() ;
        for ( Set::const_iterator item = m_converted.begin() ;
              m_converted.end() != item ; ++item )
        { log << std::endl << "  '" << (*item) << "'" ; }
        log << endmsg ;
      }
      //
      StatusCode status = PersistencySvc::finalize();
      return status;
    }

StatusCode HistogramPersistencySvc::initialize | ( | void | ) | `[virtual]`

Initialize the service.

Reimplemented from PersistencySvc.

Definition at line 87 of file HistogramPersistencySvc.cpp.

                                                       {
      StatusCode status = PersistencySvc::initialize();
      if ( status.isSuccess() )   {
        status = reinitialize();
      }
      return status;
    }

StatusCode HistogramPersistencySvc::reinitialize | ( | ) | `[virtual]`

Reinitialize the service.

Reimplemented from Service.

Definition at line 97 of file HistogramPersistencySvc.cpp.

    {
      MsgStream log(msgSvc(), name());
      // Obtain the IProperty of the ApplicationMgr
      SmartIF<IProperty> prpMgr(serviceLocator());
      if ( !prpMgr.isValid() )   {
        log << MSG::FATAL << "IProperty interface not found in ApplicationMgr." << endmsg;
        return StatusCode::FAILURE;
      }
      else {
        setProperty(prpMgr->getProperty("HistogramPersistency")).ignore();
      }

      // To keep backward compatibility, we set the property of conversion service
      // into JobOptions catalogue
      if( m_outputFile != "" ) {
        SmartIF<IJobOptionsSvc> joptsvc(serviceLocator()->service("JobOptionsSvc"));
        if( joptsvc.isValid() ) {
          StringProperty p("OutputFile", m_outputFile);
          if ( m_histPersName == "ROOT" ) {
            joptsvc->addPropertyToCatalogue("RootHistSvc", p).ignore();
          } else if (m_histPersName == "HBOOK" ) {
            joptsvc->addPropertyToCatalogue("HbookHistSvc", p).ignore();
          }
        }
      }

      // Load the Histogram persistency service that's required as default
      setConversionSvc(0).ignore();
      if ( m_histPersName == "ROOT" ) {
        setConversionSvc(service("RootHistSvc")).ignore();
        if ( !conversionSvc() ) {
          return StatusCode::FAILURE;
        }
        enable(true);
      }
      else if ( m_histPersName == "HBOOK" ) {
        setConversionSvc(service("HbookHistSvc")).ignore();
        if ( !conversionSvc() ) {
          return StatusCode::FAILURE;
        }
        enable(true);
      }
      else if ( m_histPersName == "NONE" ) {
        enable(false);
        if ( m_warnings ) {
          log << MSG::WARNING << "Histograms saving not required." << endmsg;
        }
      }
      else {
        setConversionSvc(service(m_histPersName)).ignore();
        if ( !conversionSvc() ) {
          return StatusCode::FAILURE;
        }
        enable(true);
        if ( m_warnings ) {
          log << MSG::WARNING << "Unknown Histogram Persistency Mechanism " << m_histPersName << endmsg;
        }
      }
      return StatusCode::SUCCESS;
    }

## Friends And Related Function Documentation

friend class Factory< HistogramPersistencySvc, IService *(std::string, ISvcLocator *)>`[friend]`

Definition at line 52 of file HistogramPersistencySvc.h.

friend class SvcFactory< HistogramPersistencySvc >`[friend]`

Definition at line 51 of file HistogramPersistencySvc.h.

## Member Data Documentation

Strings HistogramPersistencySvc::m_convert`[protected]`

the list of patterns to be converted

Definition at line 87 of file HistogramPersistencySvc.h.

Set HistogramPersistencySvc::m_converted`[protected]`

for the final report: the list of converted histograms

Definition at line 91 of file HistogramPersistencySvc.h.

Strings HistogramPersistencySvc::m_exclude`[protected]`

the list of patterns to be excludes

Definition at line 89 of file HistogramPersistencySvc.h.

Set HistogramPersistencySvc::m_excluded`[protected]`

for the final report: the list of excluded histograms

Definition at line 93 of file HistogramPersistencySvc.h.

std::string HistogramPersistencySvc::m_histPersName`[protected]`

Name of the Hist Pers type.

Definition at line 83 of file HistogramPersistencySvc.h.

std::string HistogramPersistencySvc::m_outputFile`[protected]`

Name of the outputFile.

Definition at line 85 of file HistogramPersistencySvc.h.

bool HistogramPersistencySvc::m_warnings`[protected]`

Flag to disable warning messages when using external input.

Definition at line 95 of file HistogramPersistencySvc.h.

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r4/GaudiSvc/src/PersistencySvc/HistogramPersistencySvc.h
- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r4/GaudiSvc/src/PersistencySvc/HistogramPersistencySvc.cpp

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