EventInfoReader.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/

 
#include "EventInfoReader.h"
 
// Constructor with parameters:
EventInfoReader::EventInfoReader(const std::string &name, 
                 ISvcLocator *pSvcLocator) :
    AthReentrantAlgorithm(name,pSvcLocator),
    m_geoModel("GeoModelSvc", name),
    m_tagInfoMgr("TagInfoMgr", name)
{}
 
// Initialize method:
StatusCode EventInfoReader::initialize()
{
    ATH_MSG_INFO( "EventInfoReader::initialize()"  );
    ATH_CHECK( m_geoModel.retrieve() );
    ATH_CHECK( m_tagInfoMgr.retrieve() );
    ATH_CHECK( m_eventInfoKey.initialize() );
    return StatusCode::SUCCESS;
}
 
// Execute method:
StatusCode EventInfoReader::execute(const EventContext& ctx) const
{
    ATH_MSG_DEBUG("EventInfoReader::execute()" );
 
    SG::ReadHandle<xAOD::EventInfo> eventInfo (m_eventInfoKey, ctx);
    if(!eventInfo.isValid()) {
      ATH_MSG_ERROR("  Could not get event info");      
      return StatusCode::FAILURE;
    }
 
    ATH_MSG_DEBUG( "Event ID: ["
                   << eventInfo->runNumber()   << ","
                   << eventInfo->eventNumber() << ":"
                   << eventInfo->timeStamp() << "] " );
    ATH_MSG_DEBUG( "Event type: IS_SIMULATION " << std::boolalpha
           << eventInfo->eventType(xAOD::EventInfo::IS_SIMULATION) << " weight "
                   << eventInfo->mcEventWeight()  );
 
 
    // Print out the tags found
    ATH_MSG_DEBUG("Tag pairs from EventInfo: " );
    for (const auto& ddTag : eventInfo->detDescrTags() ) {
      ATH_MSG_DEBUG( ddTag.first << " : " << ddTag.second);
    }
 
    // Dump out Tags
    ATH_MSG_DEBUG("Tags from TagInfoMgr:");
    ATH_MSG_DEBUG( m_tagInfoMgr->dumpTagInfoToStr() );
    
    // Print out current Release version 
    std::string releaseVersion = m_tagInfoMgr->findTag("AtlasRelease");
    ATH_MSG_DEBUG("Found Release version from TagInfoMgr: " << releaseVersion);
 
    return StatusCode::SUCCESS;
}
 
 
// Finalize method:
StatusCode EventInfoReader::finalize() 
{
    ATH_MSG_INFO("EventInfoReader::finalize()" );
    return StatusCode::SUCCESS;
}