TrkAmbiguitySolver.cxx

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#include "TrkAmbiguitySolver/TrkAmbiguitySolver.h"
#include "TrkToolInterfaces/ITrackAmbiguityProcessorTool.h"
#include "TrkToolInterfaces/ITrackAmbiguityScoreProcessorTool.h"
 
Trk::TrkAmbiguitySolver::TrkAmbiguitySolver(const std::string& name, ISvcLocator* pSvcLocator) :
  AthReentrantAlgorithm (name, pSvcLocator) {}
 
//--------------------------------------------------------------------------
Trk::TrkAmbiguitySolver::~TrkAmbiguitySolver(void)
= default;
 
//-----------------------------------------------------------------------
StatusCode
Trk::TrkAmbiguitySolver::initialize()
{
  ATH_CHECK(m_ambiTool.retrieve());
 
  ATH_CHECK(m_scoredTracksKey.initialize());
  ATH_CHECK(m_resolvedTracksKey.initialize());
  m_trackInCount=0;
  m_trackOutCount=0;
  return StatusCode::SUCCESS;
}
 
//-------------------------------------------------------------------------
StatusCode
Trk::TrkAmbiguitySolver::execute(const EventContext& ctx) const
{
  ATH_MSG_VERBOSE ("TrkAmbiguitySolver::execute()");
  SG::ReadHandle<TracksScores> scoredTracksHandle(m_scoredTracksKey, ctx);
  if ( !scoredTracksHandle.isValid() )  ATH_MSG_ERROR("Could not read scoredTracks.");
  const int nInput = scoredTracksHandle->size();
  m_trackInCount += nInput;
 
  std::unique_ptr<const TrackCollection> resolvedTracks;
  resolvedTracks.reset(m_ambiTool->process(ctx, scoredTracksHandle.cptr())); //note: take ownership and delete
  m_trackOutCount += resolvedTracks->size();
 
  SG::WriteHandle<TrackCollection> resolvedTracksHandle(m_resolvedTracksKey, ctx);
  ATH_MSG_DEBUG ("Saving "<<resolvedTracks->size()<<" tracks of " << nInput);
  if (!resolvedTracksHandle.put(std::move(resolvedTracks))) {
    ATH_MSG_ERROR ("Can't record tracks as " << m_resolvedTracksKey.key());
    return StatusCode::FAILURE;
  }
  return StatusCode::SUCCESS;
}
 
//---------------------------------------------------------------------------
 
StatusCode
Trk::TrkAmbiguitySolver::finalize(){
  if (m_ambiTool.isEnabled()) {
      m_ambiTool->statistics();
  }
  ATH_MSG_DEBUG( "Finalizing with "<< m_trackInCount << " tracks input, and "<< m_trackOutCount<< " output");
  return StatusCode::SUCCESS;
}