SmartDataObjectPtr.cpp

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/***********************************************************************************\
* (c) Copyright 1998-2025 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 <GaudiKernel/DataObject.h>
#include <GaudiKernel/IDataProviderSvc.h>
#include <GaudiKernel/SmartDataObjectPtr.h>
 
SmartDataObjectPtr::AccessFunction SmartDataObjectPtr::ObjectLoader::access() { return &SmartDataObjectPtr::retrieve; }
 
SmartDataObjectPtr::AccessFunction SmartDataObjectPtr::ObjectFinder::access() { return &SmartDataObjectPtr::find; }

StatusCode SmartDataObjectPtr::retrieve( IRegistry* pRegistry, std::string_view path, DataObject*& refpObject ) {
  return ( m_dataProvider && pRegistry ) ? m_dataProvider->retrieveObject( pRegistry, path, refpObject )
                                         : StatusCode::FAILURE;
}

StatusCode SmartDataObjectPtr::retrieve( std::string_view fullPath, DataObject*& refpObject ) {
  return m_dataProvider ? m_dataProvider->retrieveObject( fullPath, refpObject ) : StatusCode::FAILURE;
}

StatusCode SmartDataObjectPtr::find( IRegistry* pDirectory, std::string_view path, DataObject*& refpObject ) {
  return ( m_dataProvider && pDirectory ) ? m_dataProvider->findObject( pDirectory, path, refpObject )
                                          : StatusCode::FAILURE;
  ;
}

StatusCode SmartDataObjectPtr::find( std::string_view fullPath, DataObject*& refpObject ) {
  return m_dataProvider ? m_dataProvider->findObject( fullPath, refpObject ) : StatusCode::FAILURE;
}

StatusCode SmartDataObjectPtr::update( IRegistry* pRegistry ) {
  return ( m_dataProvider && pRegistry ) ? m_dataProvider->updateObject( pRegistry ) : StatusCode::FAILURE;
}

StatusCode SmartDataObjectPtr::update( std::string_view fullPath ) {
  return ( m_dataProvider ) ? m_dataProvider->updateObject( fullPath ) : StatusCode::FAILURE;
}

DataObject* SmartDataObjectPtr::retrieveObject() {
  DataObject* pObj = nullptr;
  m_status         = ( !m_pRegistry ? retrieve( m_path, pObj ) : retrieve( m_pRegistry, m_path, pObj ) );
  if ( m_status.isSuccess() ) {
    m_pRegistry = pObj->registry();
    m_path.clear();
  }
  return pObj;
}

DataObject* SmartDataObjectPtr::findObject() {
  DataObject* pObj = nullptr;
  m_status         = ( m_pRegistry ? find( m_pRegistry, m_path, pObj ) : find( m_path, pObj ) );
  if ( m_status.isSuccess() ) {
    m_pRegistry = pObj->registry();
    m_path.clear();
  }
  return pObj;
}

DataObject* SmartDataObjectPtr::updateObject() {
  DataObject* pObj = accessData(); // Have to load AND update if not present.
  if ( m_status.isSuccess() ) {
    m_status = ( !m_pRegistry ? update( m_path ) : update( m_pRegistry ) );
    if ( !m_status.isSuccess() ) pObj = nullptr;
  }
  return pObj;
}

bool operator&&( SmartDataObjectPtr& object_1, SmartDataObjectPtr& object_2 ) {
  return object_1.accessData() && object_2.accessData();
}

bool operator||( SmartDataObjectPtr& object_1, SmartDataObjectPtr& object_2 ) {
  return object_1.accessData() || object_2.accessData();
}