PrescalingTool.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
#ifndef HLTSEEDING_PRESCALINGTOOL_H
#define HLTSEEDING_PRESCALINGTOOL_H
 
// HLTSeeding includes
#include "HLTSeeding/IPrescalingTool.h"
 
// framework includes
#include "AthenaBaseComps/AthAlgTool.h"
#include "StoreGate/ReadCondHandleKey.h"
#include "GaudiKernel/ServiceHandle.h"
#include "AthenaKernel/IAtRndmGenSvc.h"
#include "AthenaKernel/RNGWrapper.h"
#include "AthenaMonitoringKernel/Monitored.h"
 
// data includes
#include "TrigConfData/HLTPrescalesSet.h"
#include "TrigConfData/HLTMenu.h"
#include "xAODEventInfo/EventInfo.h"
 
// STL includes
#include <string>

class PrescalingTool : public extends<AthAlgTool, IPrescalingTool> {
 public:
 
   // no default constructor
   PrescalingTool() = delete;
 
   // constructor
   PrescalingTool( const std::string& type, const std::string& name, const IInterface* parent );
 
   virtual StatusCode initialize() override;
   virtual StatusCode start() override;

   virtual StatusCode prescaleChains( const EventContext& ctx,
                                      const HLT::IDVec& initiallyActive,
                                      HLT::IDVec& remainActive,
                                      bool forExpressStream = false ) const override;
 
 private:
 
   SG::ReadCondHandleKey<TrigConf::HLTPrescalesSet> m_hltPrescaleSetInputKey{
    this, "HLTPrescales", "HLTPrescales", "HLT prescales set"};
 
   SG::ReadHandleKey<TrigConf::HLTMenu> m_HLTMenuKey{
    this, "HLTTriggerMenu", "DetectorStore+HLTTriggerMenu", "HLT Menu"};
 
   SG::ReadHandleKey<xAOD::EventInfo> m_eventInfoKey{
    this, "EventInfo", "EventInfo", "Event Info Object Key"};
 
   Gaudi::Property<bool> m_keepUnknownChains{
    this, "KeepUnknownChains", false, "If True then chains for which prescaling information is not set are kept"};
 
   ToolHandle<GenericMonitoringTool> m_monTool{
     this, "MonTool", "", "Monitoring tool"};

   ATHRNG::RNGWrapper m_RNGEngines;
 
   using ChainSet = std::set<HLT::Identifier>;
   ChainSet m_nonCPSChains;
   std::map<std::string, HLT::IDVec> m_CPSGroups;
 
   TrigConf::HLTPrescalesSet::HLTPrescale m_prescaleForUnknownChain;
   HLT::Identifier m_costChainID{""};
};
 
 
#endif