AlgStripSR.cxx

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// $Id: AlgStripSR.cxx,v 1.5 2005/01/19 12:29:17 kordosky Exp $
//
// AlgStripSR.cxx
//
// Begin_Html<img src="../../pedestrians.gif" align=center>
// <a href="../source_warning.html">Warning for beginners</a>.<br> 
//
// AlgStripSR is a concrete Strip Algorithm class.
//
// Author:  R. Lee 2001.01.23
//
// Also see <a href="../../root_crib/index.html">The ROOT Crib</a> and 
// <a href="../CandStripSR.html"> CandStripSR Classes</a> (part of
// <a href="../index.html">The MINOS Class User Guide</a>)End_Html

#include <cassert>

#include "Algorithm/AlgConfig.h"
#include "Algorithm/AlgFactory.h"
#include "Algorithm/AlgHandle.h"
#include "CandData/CandHeader.h"
#include "CandData/CandRecord.h"
#include "CandDigit/CandDigitHandle.h"
#include "Candidate/CandContext.h"
#include "CandStripSR/AlgStripSR.h"
#include "Conventions/CalTimeType.h"
#include "MessageService/MsgService.h"
#include "MinosObjectMap/MomNavigator.h"
#include "RawData/RawHeader.h"
#include "RawData/RawRecord.h"
#include "RecoBase/CandStripHandle.h"
#include "UgliGeometry/UgliGeomHandle.h"
#include "UgliGeometry/UgliStripHandle.h"
#include "Validity/VldContext.h"

ClassImp(AlgStripSR)

//______________________________________________________________________
AlgStripSR::AlgStripSR()
{
}

//______________________________________________________________________
AlgStripSR::~AlgStripSR()
{
}

//______________________________________________________________________

void AlgStripSR::RunAlg(AlgConfig &ac, CandHandle &ch, CandContext &cx)
{
  // M. Kordosky: Jan 19, 2005
  // without exception handling this is needed
  // contrast with pointer case...
  assert(ch.InheritsFrom("CandStripHandle"));
  CandStripHandle &csh = dynamic_cast<CandStripHandle &>(ch);

  // M. Kordosky: Jan 19, 2005
  // see comments in loop below regarding InheritsFrom & dynamic_cast<>
  //  assert(cx.GetDataIn());
  //  assert(cx.GetDataIn()->InheritsFrom("TObjArray"));

  const TObjArray *tary =
    dynamic_cast<const TObjArray*>(cx.GetDataIn());
  assert(tary);// test for cx.GetDataIn() returning null and also a bad cast

  CalTimeType::CalTimeType_t caltimetype = (CalTimeType::CalTimeType_t)(ac.GetInt("CalTimeType"));

  
  for (Int_t i=0; i<=tary->GetLast(); i++) {
    TObject *tobj = tary->At(i);
    
    // M. Kordosky: Jan 19, 2005... noticed while browsing
    // don't do this, it does RTTI twice
    //    assert(tobj->InheritsFrom("CandDigitHandle"));
    //    CandDigitHandle *cdh = dynamic_cast<CandDigitHandle*>(tobj);
    // instead do this
    CandDigitHandle *cdh = dynamic_cast<CandDigitHandle*>(tobj);
    assert(cdh); // test for both null tobj pointer and bad cast
    // or perhaps this
    //    assert(tobj->InheritsFrom("CandDigitHandle"));
    //    CandDigitHandle *cdh = static_cast<CandDigitHandle*>(tobj);
    // not sure which option is faster... first doesn't use ROOT's RTTI
    
    csh.AddDaughterLink(*cdh);
    if (!i) {
      UgliGeomHandle ugh(*cdh->GetVldContext());
      UgliStripHandle ush =
        ugh.GetStripHandle(cdh->GetPlexSEIdAltL().GetBestSEId());      
      csh.SetBestStripEndId(cdh->GetPlexSEIdAltL().GetBestSEId());
      csh.SetZPos(ugh.GetScintPlnHandle(csh.GetStripEndId(StripEnd::kWhole)).GetZ0());
      csh.SetTPos(ush.GetTPos());
      csh.SetCalTimeType(caltimetype);
    }
  }
}

//______________________________________________________________________
void AlgStripSR::Trace(const char * /* c */) const
{
}

---