RootHistogramSink.cpp

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* (c) Copyright 1998-2023 CERN for the benefit of the LHCb and ATLAS collaborations *
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* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
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#include <Gaudi/Histograming/Sink/Base.h>
#include <Gaudi/Histograming/Sink/Utils.h>
#include <GaudiKernel/Service.h>
#include <TH1D.h>
#include <TH2D.h>
#include <TH3D.h>
#include <TProfile.h>
#include <TProfile2D.h>
#include <TProfile3D.h>
 
namespace Gaudi::Histograming::Sink {
 
  namespace {
    using namespace std::string_literals;
    Base::HistoRegistry const registry = {
        { { "histogram:Histogram"s, 1 }, &saveRootHisto<1, false, TH1D> },
        { { "histogram:WeightedHistogram"s, 1 }, &saveRootHisto<1, false, TH1D> },
        { { "histogram:Histogram"s, 2 }, &saveRootHisto<2, false, TH2D> },
        { { "histogram:WeightedHistogram"s, 2 }, &saveRootHisto<2, false, TH2D> },
        { { "histogram:Histogram"s, 3 }, &saveRootHisto<3, false, TH3D> },
        { { "histogram:WeightedHistogram"s, 3 }, &saveRootHisto<3, false, TH3D> },
        { { "histogram:ProfileHistogram"s, 1 }, &saveRootHisto<1, true, TProfile> },
        { { "histogram:WeightedProfileHistogram"s, 1 }, &saveRootHisto<1, true, TProfile> },
        { { "histogram:ProfileHistogram"s, 2 }, &saveRootHisto<2, true, TProfile2D> },
        { { "histogram:WeightedProfileHistogram"s, 2 }, &saveRootHisto<2, true, TProfile2D> },
        { { "histogram:ProfileHistogram"s, 3 }, &saveRootHisto<3, true, TProfile3D> },
        { { "histogram:WeightedProfileHistogram"s, 3 }, &saveRootHisto<3, true, TProfile3D> } };
  } // namespace
 
  struct Root : Base {
    using Base::Base;
 
    StatusCode initialize() override {
      return Base::initialize().andThen( [&] {
        for ( auto& [id, func] : registry ) { registerHandler( id, func ); }
      } );
    }
  };
 
  DECLARE_COMPONENT( Root )
 
} // namespace Gaudi::Histograming::Sink