EvtDataSvc.cpp

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//====================================================================
//  EvtDataSvc.cpp
//--------------------------------------------------------------------
//
//  Package    : System ( The LHCb Offline System)
//
//  Description: implementation of the Transient event data service.
//
//  Author     : M.Frank
//  History    :
// +---------+----------------------------------------------+---------
// |    Date |                 Comment                      | Who
// +---------+----------------------------------------------+---------
// | 29/10/98| Initial version                              | MF
// +---------+----------------------------------------------+---------
//
//====================================================================
 
// Framework includes
#include <GaudiKernel/DataSvc.h>
#include <GaudiKernel/IConversionSvc.h>
#include <GaudiKernel/ISvcLocator.h>

class EvtDataSvc : public DataSvc {
public:
  using DataSvc::DataSvc;
  StatusCode initialize() override;
  StatusCode reinitialize() override;
  StatusCode finalize() override;
 
private:
  SmartIF<IConversionSvc> m_cnvSvc;
};
 
// Instantiation of a static factory class used by clients to create
// instances of this service
DECLARE_COMPONENT( EvtDataSvc )
 

StatusCode EvtDataSvc::initialize() {
  // Nothing to do: just call base class initialisation
  StatusCode status = DataSvc::initialize();
 
  // Attach data loader facility
  m_cnvSvc = serviceLocator()->service( "EventPersistencySvc" );
  status   = setDataLoader( m_cnvSvc );
  return status;
}

StatusCode EvtDataSvc::reinitialize() {
  // Do nothing for this service
  return StatusCode::SUCCESS;
}

StatusCode EvtDataSvc::finalize() {
  m_cnvSvc = nullptr; // release
  DataSvc::finalize().ignore();
  return StatusCode::SUCCESS;
}