TRT_DriftCircleToolCosmics.cxx

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

//   Implementation file for class TRT_DriftCircleToolCosmics
// (c) ATLAS Detector software
// AlgTool used for TRT RDI collection production
// Version 1.0 18/02/2003 I.Gavrilenko
 
#include "GaudiKernel/ISvcLocator.h"
#include "GaudiKernel/DataSvc.h"
#include "GaudiKernel/SmartDataPtr.h"
#include "TRT_DriftCircleTool/TRT_DriftCircleToolCosmics.h"
#include "TRT_ReadoutGeometry/TRT_BaseElement.h"
#include "InDetPrepRawData/TRT_DriftCircle.h"
#include "InDetPrepRawData/TRT_DriftCircleCollection.h"
#include "InDetRawData/TRT_RDORawData.h"
 
#include "TRT_DriftFunctionTool/ITRT_DriftFunctionTool.h"
#include "InDetIdentifier/TRT_ID.h"
#include "InDetConditionsSummaryService/IInDetConditionsTool.h"
 
#include "GeoPrimitives/GeoPrimitives.h"
#include "EventPrimitives/EventPrimitives.h"
#include "xAODEventInfo/EventInfo.h"
 
#include "StoreGate/ReadHandle.h"
 
#include "StoreGate/ReadCondHandle.h"
// Constructior
 
InDet::TRT_DriftCircleToolCosmics::TRT_DriftCircleToolCosmics
(const std::string& t,
 const std::string& n,
 const IInterface*  p ):
  AthAlgTool(t,n,p)
{
  declareInterface<ITRT_DriftCircleTool>(this);
}

// Destructor
 
InDet::TRT_DriftCircleToolCosmics::~TRT_DriftCircleToolCosmics()= default;

// Test validity gate
bool InDet::TRT_DriftCircleToolCosmics::passValidityGate(unsigned int word, float lowGate, float highGate, float t0) const
{
  bool foundInterval = false;
  unsigned  mask = 0x02000000;
  int i = 0;
  while ( !foundInterval && (i < 24) ) {
    if (word & mask) {
      float thisTime = ((0.5+i)*3.125)-t0;
      if (thisTime >= lowGate && thisTime <= highGate) foundInterval = true;
    }
    mask >>= 1;
    if (i == 7 || i == 15)
      mask >>= 1;
    i++;
  }
  return foundInterval;
}
 

// Initialisation
 
StatusCode InDet::TRT_DriftCircleToolCosmics::initialize()
{
 
  StatusCode sc = AthAlgTool::initialize();
 
  // Get DriftFunction tool
  //
  if ( m_driftFunctionTool.retrieve().isFailure() ) {
    ATH_MSG_FATAL(m_driftFunctionTool.propertyName() << ": Failed to retrieve tool " << m_driftFunctionTool.type());
    return StatusCode::FAILURE;
  }
  ATH_MSG_DEBUG(m_driftFunctionTool.propertyName() << ": Retrieved tool " << m_driftFunctionTool.type());
 
  // Get TRT ID helper
  sc = detStore()->retrieve(m_trtid,"TRT_ID");
  if ( sc.isFailure() ) {
    ATH_MSG_FATAL( "Could not retrieve TRT ID helper." );
    return sc;
  }
 
  if(m_useConditionsStatus){
    if ( m_ConditionsSummary.retrieve().isFailure() ) {
      ATH_MSG_FATAL("Failed to retrieve "<< m_ConditionsSummary);
      return StatusCode::FAILURE;
    }
    ATH_MSG_DEBUG( "Retrieved service " << m_ConditionsSummary);
  }
 
  // Initialize Read handle key
  ATH_CHECK(m_evtPhaseKey.initialize());
 
  // Initialize readCondHandle key
  ATH_CHECK(m_trtDetEleContKey.initialize());
 
  return sc;
}

// Finalize
 
StatusCode InDet::TRT_DriftCircleToolCosmics::finalize()
{
   StatusCode sc = AthAlgTool::finalize(); return sc;
}

// Trk::TRT_DriftCircles collection production
 
InDet::TRT_DriftCircleCollection* InDet::TRT_DriftCircleToolCosmics::convert(int Mode,
                                                                             const InDetRawDataCollection<TRT_RDORawData>* rdo,
                                                                             const EventContext& ctx,
                                                                             DataPool<TRT_DriftCircle>* /*dataItemsPool*/,
                                                                             const bool /* _getTRTBadChannel */) const
{
 
  //Initialise a new TRT_DriftCircleCollection
  InDet::TRT_DriftCircleCollection* rio = nullptr;
 
  if (!rdo) {
    ATH_MSG_ERROR("empty collection at input");
    return rio;
  }
 
  SG::ReadHandle<ComTime> theComTime(m_evtPhaseKey, ctx);
 
  SG::ReadCondHandle<InDetDD::TRT_DetElementContainer> trtDetEleHandle(m_trtDetEleContKey, ctx);
  const InDetDD::TRT_DetElementCollection* elements(trtDetEleHandle->getElements());
  if (not trtDetEleHandle.isValid() or elements==nullptr) {
    ATH_MSG_FATAL(m_trtDetEleContKey.fullKey() << " is not available.");
    return rio;
  }
 
  float timecor=0.;
  if (theComTime.isValid()) {
    timecor = theComTime->getTime() + m_global_offset;
    ATH_MSG_VERBOSE("Retrieved event phase with name "
            << theComTime.key() <<" found! Time="<<timecor);
  }else{
    ATH_MSG_VERBOSE("Event phase not found with name "<<theComTime.key()<<"!!!");
    timecor=m_global_offset; // cannot correct drifttime
  }
 
  DataVector<TRT_RDORawData>::const_iterator r,rb=rdo->begin(),re=rdo->end();
  if(rb!=re) {
 
   //Get the BaseElement and the rio of the collection
    IdentifierHash IHc                 = rdo      ->identifyHash();
    const InDetDD::TRT_BaseElement* pE = elements->getDetectorElement(IHc);
    rio                                = new InDet::TRT_DriftCircleCollection(IHc);
    rio->setIdentifier(rdo->identify());
    rio->reserve( std::distance(rb, re) );
 
 
    // Loop through all RDOs in the collection
    //
 
    for(r=rb; r!=re; ++r) {
 
      Identifier   id  = (*r)->identify();
      int   LTbin      = (*r)->driftTimeBin();
      bool  isOK       =true;
      double t0         =0.;
      double rawTime    = m_driftFunctionTool->rawTime(LTbin);
      double radius     =0.;
      double driftTime  =0.;
      unsigned int word    = (*r)->getWord();
 
      //
      //Get straw status
      int strawstat=1;
 
      if(m_useConditionsStatus){
         if(m_ConditionsSummary->getStatus(id, ctx) != TRTCond::StrawStatus::Good) {
            strawstat = 0;
         }
         if(!strawstat) continue;
      }
 
      //correct for phase
      rawTime-=timecor;
 
      // ToT and HT Corrections
 
      bool isArgonStraw=true;
      if (m_useToTCorrection) rawTime -= m_driftFunctionTool->driftTimeToTCorrection((*r)->timeOverThreshold(), id, isArgonStraw);
      if (m_useHTCorrection && (*r)->highLevel())  rawTime += m_driftFunctionTool->driftTimeHTCorrection(id, isArgonStraw);
 
      //make tube hit if first bin is high and no later LE appears
      if( LTbin==0 || LTbin==24 ) {
        isOK=false;
      } else {
        radius    = m_driftFunctionTool->driftRadius(rawTime,id,t0,isOK);
        driftTime = rawTime-t0;
      }
 
      if(!isOK) word &= 0xF7FFFFFF;
      else word |= 0x08000000;
 
 
      //std::vector<Identifier>    dvi // we dont need this                                   ;
      ATH_MSG_VERBOSE( " id " << m_trtid->layer_or_wheel(id)
      << " " << m_trtid->straw_layer(id)
      << " " << m_trtid->straw(id)
          << " time bin  " << LTbin
          << " timecor " << timecor
      << " corrected time " << rawTime );
 
      double error=0;
      if(Mode<2) {
    error = m_driftFunctionTool->errorOfDriftRadius(driftTime,id)         ;
      }
 
      ATH_MSG_VERBOSE("   hit OK " << isOK << " t0 " << t0
            << " drifttime " << driftTime
        << " radius " << radius << " error " << error);
 
      if( !isOK || (error==0.&&Mode<2) ) //Drifttime out of range. Make wirehit
    {
      ATH_MSG_VERBOSE(" Making wirehit.");
      radius = 0.;
      error = 4./sqrt(12.);
    }
 
      auto errmat = Amg::MatrixX(1,1);                          ;
      (errmat)(0,0) = error*error;
 
      Amg::Vector2D loc(radius,0.);
 
      // if(Mode<1) dvi.push_back(id);  we dont need this
 
      InDet::TRT_DriftCircle* tdc =
        new InDet::TRT_DriftCircle(id, loc, std::move(errmat), pE, word);
 
      if (tdc) {
 
           if(!m_useConditionsStatus){
                // setting the index (via -> size) has to be done just before the push_back! (for safety)
                tdc->setHashAndIndex(rio->identifyHash(), rio->size());
                rio->push_back(tdc);
 
           }else{
             if(strawstat){
                tdc->setHashAndIndex(rio->identifyHash(), rio->size());
                rio->push_back(tdc);
         } else {
            ATH_MSG_VERBOSE(" Delete hit on bad channel ");
            delete tdc;
         }
           }
 
      } else{
    ATH_MSG_ERROR("Could not create InDet::TRT_DriftCircle object !");
      }
    }
  }
  return rio;
}