JetExternalAssocTool.h

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/
 
// JetExternalAssocTool.h
 
#ifndef DerivationFramework_JetExternalAssocTool_H
#define DerivationFramework_JetExternalAssocTool_H
 
 
#include "AthenaBaseComps/AthAlgTool.h"
#include "DerivationFrameworkInterfaces/IAugmentationTool.h"
#include "GaudiKernel/ToolHandle.h"
#include "StoreGate/WriteDecorHandleKeyArray.h"
 
#include "xAODJet/JetContainer.h"
 
#include "TObjArray.h"
#include "TObjString.h"
#include <vector>
#include <string>
 
namespace DerivationFramework{
 
  class JetExternalAssocTool : public AthAlgTool, public IAugmentationTool {
 
  public:
    JetExternalAssocTool(const std::string& t, const std::string& n, const IInterface* p);
 
    StatusCode initialize();
    StatusCode finalize();
    virtual StatusCode addBranches() const;
 
    bool TransferLink(const xAOD::Jet& jet, const xAOD::Jet& jet_external) const;
 
  private:
    std::string              m_momentPrefix;
    std::string              m_containerName;
 
    std::string              m_ExternalJetCollectionName;
    std::vector<std::string> m_VectorOfOldLinkNames;
    std::vector<std::string> m_VectorOfNewLinkNames;
 
    bool                     m_dRMatch;
    double                   m_dRCut;
 
    typedef ElementLink<xAOD::IParticleContainer>            type_el;
    typedef std::vector<type_el>                             type_ghostlink;
 
    SG::WriteDecorHandleKeyArray<xAOD::JetContainer> m_dec_keys{this, "DecKeys", {}, "SG keys for external decorations"};
 
  };
 
}
#endif