AsgViewFromSelectionAlg.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/

 
 
 
#ifndef ASG_ANALYSIS_ALGORITHMS__ASG_VIEW_FROM_SELECTION_ALG_H
#define ASG_ANALYSIS_ALGORITHMS__ASG_VIEW_FROM_SELECTION_ALG_H
 
#include <AnaAlgorithm/AnaAlgorithm.h>
#include <xAODBase/IParticleContainer.h>
#include <SelectionHelpers/ISelectionReadAccessor.h>
#include <SystematicsHandles/SysReadHandle.h>
#include <SystematicsHandles/SysWriteHandle.h>
#include <SystematicsHandles/SysListHandle.h>
#include <AsgTools/PropertyWrapper.h>
#include <limits>
 
namespace CP
{
 
  class AsgViewFromSelectionAlg final : public EL::AnaAlgorithm
  {
  public:
    using EL::AnaAlgorithm::AnaAlgorithm;
    StatusCode initialize () override;
    StatusCode execute (const EventContext& ctx) override;
 

  private:
    SysListHandle m_systematicsList {this};

  private:
    SysReadHandle<xAOD::IParticleContainer> m_inputHandle {
      this, "input", "", "the input collection to run on"};

  private:
    SysWriteHandle<xAOD::IParticleContainer> m_outputHandle {
      this, "output", "", "the output view container to produce"};

  private:
    Gaudi::Property<std::vector<std::string>> m_selection {this, "selection", {}, "the list of selection decorations"};
 
  private:
    Gaudi::Property<std::vector<SelectionType>> m_ignore {this, "ignore", {}, "the list of cuts to *ignore* for each selection"};

  private:
    Gaudi::Property<bool> m_sortPt {this, "sortPt", false, "whether to sort objects in pt"};

  private:
    Gaudi::Property<bool> m_allowMissing {this, "allowMissing", false, "Allow the input container to be missing"};

  private:
    Gaudi::Property<bool> m_deepCopy {this, "deepCopy", false, "perform a deep copy"};
 
  private:
    Gaudi::Property<std::size_t> m_sizeLimit {this, "sizeLimit", std::numeric_limits<std::size_t>::max(), "the limit on the size of the output container"};

  private:
    std::vector<std::pair<std::unique_ptr<ISelectionReadAccessor>,SelectionType> > m_accessors;

  private:
    template<typename Type> StatusCode
    executeTemplate (const CP::SystematicSet& sys);

  private:
    StatusCode executeFindType (const CP::SystematicSet& sys);

  private:
    StatusCode executeMissing (const CP::SystematicSet& sys);
 
  private:
    StatusCode (AsgViewFromSelectionAlg::* m_function) (const CP::SystematicSet& sys) {&AsgViewFromSelectionAlg::executeFindType};
  };
}
 
#endif