DecisionSummaryMakerAlg.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
#ifndef TRIGOUTPUTHANDLING_DECISIONSUMMARYMAKERALG_H
#define TRIGOUTPUTHANDLING_DECISIONSUMMARYMAKERALG_H
 
#include "TrigCompositeUtils/TrigCompositeUtils.h"
#include "TrigConfData/HLTMenu.h"
#include "HLTSeeding/IPrescalingTool.h"
#include "AthenaBaseComps/AthReentrantAlgorithm.h"
#include "AthenaMonitoringKernel/Monitored.h"
 
#include <string>
#include <vector>
#include <unordered_map>
 

class DecisionSummaryMakerAlg : public AthReentrantAlgorithm {
public:
  DecisionSummaryMakerAlg(const std::string& name, ISvcLocator* pSvcLocator);
  virtual ~DecisionSummaryMakerAlg() override = default;
 
  virtual StatusCode initialize() override;
  virtual StatusCode start() override;
  virtual StatusCode execute(const EventContext& context) const override;
  virtual StatusCode finalize() override;
 
private:
  void monitorRoIs(const EventContext& context, const TrigCompositeUtils::Decision* terminusNode) const;
 
  SG::WriteHandleKey<TrigCompositeUtils::DecisionContainer> m_summaryKey{ this, "DecisionsSummaryKey", "HLTNav_Summary",
      "Location of final decision" };
 
  SG::ReadHandleKeyArray<TrigCompositeUtils::DecisionContainer> m_finalDecisionKeys{ this, "FinalDecisionKeys", {},
      "Final stage of all decisions" };
 
  SG::WriteHandleKey<std::vector<std::string>> m_streamsSummaryKey{ this, "StreamsSummaryKey", "HLTStreamsSummary",
      "Set of streams accepted in the event"};
 
  SG::ReadHandleKey<xAOD::TrigCompositeContainer> m_hltSeedingSummaryKey { this, "HLTSeedingSummaryKey", "HLTSeedingSummary",
    "Chains status after L1 and prescaling" };
 
  SG::ReadHandleKey<TrigConf::HLTMenu> m_hltMenuKey{this, "HLTMenuKey", "DetectorStore+HLTTriggerMenu",
    "HLT Menu"};
 
  ToolHandle<IPrescalingTool> m_prescaler{this, "Prescaler", "PrescalingTool/PrescalingTool",
    "Prescaling tool used to determine express stream prescale decisions"};
 
  ToolHandle<GenericMonitoringTool> m_monTool { this, "MonTool", "",
    "Monitoring tool" };
 
  Gaudi::Property< std::map< std::string, std::vector<std::string> > > m_lastStepForChain{ this, "FinalStepDecisions", {},
    "The map of chain name to names of the collections in which the final decision is found" };
 
  Gaudi::Property<bool> m_warnOnLargeRoIUpdates{this, "WarnOnLargeRoIUpdates", true,
    "Print warnings from RoI update monitoring if the difference between initial and final RoI is large"};
 
  Gaudi::Property<bool> m_setFilterStatus{this, "SetFilterStatus", false,
    "Enables chain-passed filter. This will cause the downstream EDMCreator to not run if no chains pass, saving CPU in rejected events. "
    "Cannot be used in jobs producing RDO output."};
 
  std::map<std::string, TrigCompositeUtils::DecisionIDContainer> m_collectionFilter;

  std::unordered_map<TrigCompositeUtils::DecisionID, std::vector<std::string>> m_chainToStreamsMap;
};
 
#endif // TRIGOUTPUTHANDLING_DECISIONSUMMARYMAKERALG_H