[u/mrichter/AliRoot.git] / VZERO / AliVZEROReconstructor.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
///                                                                          //
/// class for VZERO reconstruction                                           //
///                                                                          //
///////////////////////////////////////////////////////////////////////////////

#include <TH1F.h>
#include <TF1.h>
#include <TParameter.h>

#include "AliRunLoader.h"
#include "AliRawReader.h"
#include "AliGRPObject.h"
#include "AliCDBManager.h"
#include "AliCDBStorage.h"
#include "AliCDBEntry.h"
#include "AliVZEROReconstructor.h"
#include "AliVZERORawStream.h"
#include "AliVZEROConst.h"
#include "AliESDEvent.h"
#include "AliVZEROTriggerMask.h"
#include "AliESDfriend.h"
#include "AliESDVZEROfriend.h"
#include "AliVZEROdigit.h"
#include "AliVZEROCalibData.h"
#include "AliRunInfo.h"
#include "AliCTPTimeParams.h"

ClassImp(AliVZEROReconstructor)

//_____________________________________________________________________________
AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
                        fESDVZERO(0x0),
                        fESD(0x0),
                        fESDVZEROfriend(0x0),
                        fCalibData(NULL),
                        fTimeSlewing(NULL),
                        fCollisionMode(0),
                        fBeamEnergy(0.),
                        fDigitsArray(0)
{
  // Default constructor  
  // Get calibration data
  
  fCalibData = GetCalibData();

  AliCDBEntry *entry = AliCDBManager::Instance()->Get("GRP/CTP/CTPtiming");
  if (!entry) AliFatal("CTP timing parameters are not found in OCDB !");
  AliCTPTimeParams *ctpParams = (AliCTPTimeParams*)entry->GetObject();
  Float_t l1Delay = (Float_t)ctpParams->GetDelayL1L0()*25.0;

  AliCDBEntry *entry1 = AliCDBManager::Instance()->Get("GRP/CTP/TimeAlign");
  if (!entry1) AliFatal("CTP time-alignment is not found in OCDB !");
  AliCTPTimeParams *ctpTimeAlign = (AliCTPTimeParams*)entry1->GetObject();
  l1Delay += ((Float_t)ctpTimeAlign->GetDelayL1L0()*25.0);

  AliCDBEntry *entry2 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeDelays");
  if (!entry2) AliFatal("VZERO time delays are not found in OCDB !");
  TH1F *delays = (TH1F*)entry2->GetObject();

  AliCDBEntry *entry3 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeSlewing");
  if (!entry3) AliFatal("VZERO time slewing function is not found in OCDB !");
  fTimeSlewing = (TF1*)entry3->GetObject();

  for(Int_t i = 0 ; i < 64; ++i) {
    Int_t board = AliVZEROCalibData::GetBoardNumber(i);
    fTimeOffset[i] = (((Float_t)fCalibData->GetTriggerCountOffset(board)-
			(Float_t)fCalibData->GetRollOver(board))*25.0+
		       fCalibData->GetTimeOffset(i)-
		       l1Delay+
		       delays->GetBinContent(i+1)+
		       kV0Offset);
  }
}


//_____________________________________________________________________________
AliVZEROReconstructor& AliVZEROReconstructor::operator = 
  (const AliVZEROReconstructor& /*reconstructor*/)
{
// assignment operator

  Fatal("operator =", "assignment operator not implemented");
  return *this;
}

//_____________________________________________________________________________
AliVZEROReconstructor::~AliVZEROReconstructor()
{
// destructor

   delete fESDVZERO;
   delete fESDVZEROfriend;
   delete fDigitsArray;
}

//_____________________________________________________________________________
void AliVZEROReconstructor::Init()
{
// initializer

  fESDVZERO  = new AliESDVZERO;
  fESDVZEROfriend = new AliESDVZEROfriend;
  
  GetCollisionMode();  // fCollisionMode =1 for Pb-Pb simulated data
}

//______________________________________________________________________
void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
{
// converts RAW to digits 

  if (!digitsTree) {
    AliError("No digits tree!");
    return;
  }

  if (!fDigitsArray)
    fDigitsArray = new TClonesArray("AliVZEROdigit", 64);
  digitsTree->Branch("VZERODigit", &fDigitsArray);

  fESDVZEROfriend->Reset();

  rawReader->Reset();
  AliVZERORawStream rawStream(rawReader);
  if (rawStream.Next()) { 

    Int_t aBBflagsV0A = 0;
    Int_t aBBflagsV0C = 0;
    Int_t aBGflagsV0A = 0;
    Int_t aBGflagsV0C = 0;

    for(Int_t iChannel=0; iChannel < 64; ++iChannel) {
      Int_t offlineCh = rawStream.GetOfflineChannel(iChannel);
      // ADC charge samples
      Short_t chargeADC[AliVZEROdigit::kNClocks];
      for(Int_t iClock=0; iClock < AliVZEROdigit::kNClocks; ++iClock) {
	chargeADC[iClock] = rawStream.GetPedestal(iChannel,iClock);
      }
      // Integrator flag
      Bool_t integrator = rawStream.GetIntegratorFlag(iChannel,AliVZEROdigit::kNClocks/2);
      // Beam-beam and beam-gas flags
      if(offlineCh<32) {
	if (rawStream.GetBBFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBBflagsV0C |= (1 << offlineCh);
	if (rawStream.GetBGFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBGflagsV0C |= (1 << offlineCh);
      } else {
	if (rawStream.GetBBFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBBflagsV0A |= (1 << (offlineCh-32));
	if (rawStream.GetBGFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBGflagsV0A |= (1 << (offlineCh-32));
      }
      // HPTDC data (leading time and width)
      Int_t board = AliVZEROCalibData::GetBoardNumber(offlineCh);
      Float_t time = rawStream.GetTime(iChannel)*fCalibData->GetTimeResolution(board);
      Float_t width = rawStream.GetWidth(iChannel)*fCalibData->GetWidthResolution(board);
      // Add a digit
      if(!fCalibData->IsChannelDead(iChannel)){
	  new ((*fDigitsArray)[fDigitsArray->GetEntriesFast()])
	    AliVZEROdigit(offlineCh, time,
			  width,integrator,
			  chargeADC);
      }

      // Filling the part of esd friend object that is available only for raw data
      fESDVZEROfriend->SetBBScalers(offlineCh,rawStream.GetBBScalers(iChannel));
      fESDVZEROfriend->SetBGScalers(offlineCh,rawStream.GetBGScalers(iChannel));
      for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++) {
	fESDVZEROfriend->SetChargeMB(offlineCh,iBunch,rawStream.GetChargeMB(iChannel,iBunch));
	fESDVZEROfriend->SetIntMBFlag(offlineCh,iBunch,rawStream.GetIntMBFlag(iChannel,iBunch));
	fESDVZEROfriend->SetBBMBFlag(offlineCh,iBunch,rawStream.GetBBMBFlag(iChannel,iBunch));
	fESDVZEROfriend->SetBGMBFlag(offlineCh,iBunch,rawStream.GetBGMBFlag(iChannel,iBunch));
      }

    }  

    // Filling the global part of esd friend object that is available only for raw data
    fESDVZEROfriend->SetTriggerInputs(rawStream.GetTriggerInputs());
    fESDVZEROfriend->SetTriggerInputsMask(rawStream.GetTriggerInputsMask());

    for(Int_t iScaler = 0; iScaler < AliESDVZEROfriend::kNScalers; iScaler++)
      fESDVZEROfriend->SetTriggerScalers(iScaler,rawStream.GetTriggerScalers(iScaler));

    for(Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++)
      fESDVZEROfriend->SetBunchNumbersMB(iBunch,rawStream.GetBunchNumbersMB(iBunch));
     
    // Store the BB and BG flags in the digits tree (user info)
    digitsTree->GetUserInfo()->Add(new TParameter<int>("BBflagsV0A",aBBflagsV0A));
    digitsTree->GetUserInfo()->Add(new TParameter<int>("BBflagsV0C",aBBflagsV0C));
    digitsTree->GetUserInfo()->Add(new TParameter<int>("BGflagsV0A",aBGflagsV0A));
    digitsTree->GetUserInfo()->Add(new TParameter<int>("BGflagsV0C",aBGflagsV0C));

    digitsTree->Fill();
  }

  fDigitsArray->Clear();
}      

//______________________________________________________________________
void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /*clustersTree*/,
				    AliESDEvent* esd) const
{
// fills multiplicities to the ESD - pedestal is now subtracted
    
  if (!digitsTree) {
      AliError("No digits tree!");
      return;
  }

  TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
  digitBranch->SetAddress(&fDigitsArray);

  Float_t   mult[64];  
  Float_t    adc[64]; 
  Float_t   time[64]; 
  Float_t  width[64];
  Bool_t aBBflag[64];
  Bool_t aBGflag[64];
   
  for (Int_t i=0; i<64; i++){
       adc[i]    = 0.0;
       mult[i]   = 0.0;
       time[i]   = kInvalidTime;
       width[i]  = 0.0;
       aBBflag[i] = kFALSE;
       aBGflag[i] = kFALSE;
  }
     
  Int_t aBBflagsV0A = 0;
  Int_t aBBflagsV0C = 0;
  Int_t aBGflagsV0A = 0;
  Int_t aBGflagsV0C = 0;

  if (digitsTree->GetUserInfo()->FindObject("BBflagsV0A")) {
    aBBflagsV0A = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BBflagsV0A"))->GetVal();
  }
  else
    AliWarning("V0A beam-beam flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");

  if (digitsTree->GetUserInfo()->FindObject("BBflagsV0C")) {
    aBBflagsV0C = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BBflagsV0C"))->GetVal();
  }
  else
    AliWarning("V0C beam-beam flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");

  if (digitsTree->GetUserInfo()->FindObject("BGflagsV0A")) {
    aBGflagsV0A = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BGflagsV0A"))->GetVal();
  }
  else
    AliWarning("V0A beam-gas flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");

  if (digitsTree->GetUserInfo()->FindObject("BGflagsV0C")) {
    aBGflagsV0C = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BGflagsV0C"))->GetVal();
  }
  else
    AliWarning("V0C beam-gas flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");
  
  // Beam-beam and beam-gas flags (hardware)
  for (Int_t iChannel = 0; iChannel < 64; ++iChannel) {
    if(iChannel < 32) {
      aBBflag[iChannel] = (aBBflagsV0C >> iChannel) & 0x1;
      aBGflag[iChannel] = (aBGflagsV0C >> iChannel) & 0x1;
    }
    else {
      aBBflag[iChannel] = (aBBflagsV0A >> (iChannel-32)) & 0x1;
      aBGflag[iChannel] = (aBGflagsV0A >> (iChannel-32)) & 0x1;
    }
  }

  Int_t nEntries = (Int_t)digitsTree->GetEntries();
  for (Int_t e=0; e<nEntries; e++) {
    digitsTree->GetEvent(e);

    Int_t nDigits = fDigitsArray->GetEntriesFast();
    
    for (Int_t d=0; d<nDigits; d++) {    
        AliVZEROdigit* digit = (AliVZEROdigit*) fDigitsArray->At(d);      
        Int_t  pmNumber = digit->PMNumber();

        // Pedestal retrieval and suppression
	Bool_t integrator = digit->Integrator();
        Float_t maxadc = 0;
        Int_t imax = -1;
        Float_t adcPedSub[AliVZEROdigit::kNClocks];
        for(Int_t iClock=0; iClock < AliVZEROdigit::kNClocks; ++iClock) {
	  Short_t charge = digit->ChargeADC(iClock);
	  Bool_t iIntegrator = (iClock%2 == 0) ? integrator : !integrator;
	  Int_t k = pmNumber + 64*iIntegrator;
	  adcPedSub[iClock] = (Float_t)charge - fCalibData->GetPedestal(k);
	  if(adcPedSub[iClock] <= GetRecoParam()->GetNSigmaPed()*fCalibData->GetSigma(k)) {
	    adcPedSub[iClock] = 0;
	    continue;
	  }
	  if(iClock < GetRecoParam()->GetStartClock() || iClock > GetRecoParam()->GetEndClock()) continue;
	  if(adcPedSub[iClock] > maxadc) {
	    maxadc = adcPedSub[iClock];
	    imax   = iClock;
	  }
	}

	if (imax != -1) {
	  Int_t start = imax - GetRecoParam()->GetNPreClocks();
	  if (start < 0) start = 0;
	  Int_t end = imax + GetRecoParam()->GetNPostClocks();
	  if (end > 20) end = 20;
	  for(Int_t iClock = start; iClock <= end; iClock++) {
	    adc[pmNumber] += adcPedSub[iClock];
	  }
	}

	// HPTDC leading time and width
	// Correction for slewing and various time delays
        time[pmNumber]  =  CorrectLeadingTime(pmNumber,digit->Time(),adc[pmNumber]);
	width[pmNumber] =  digit->Width();

	if (adc[pmNumber] > 0) AliDebug(1,Form("PM = %d ADC = %f TDC %f (%f)   Int %d (%d %d %d %d %d)    %f %f   %f %f    %d %d",pmNumber, adc[pmNumber],
					       digit->Time(),time[pmNumber],
					       integrator,
					       digit->ChargeADC(8),digit->ChargeADC(9),digit->ChargeADC(10),
					       digit->ChargeADC(11),digit->ChargeADC(12),
					       fCalibData->GetPedestal(pmNumber),fCalibData->GetSigma(pmNumber),
					       fCalibData->GetPedestal(pmNumber+64),fCalibData->GetSigma(pmNumber+64),
					       aBBflag[pmNumber],aBGflag[pmNumber]));

	mult[pmNumber] = adc[pmNumber]*fCalibData->GetMIPperADC(pmNumber);

	// Fill ESD friend object
	for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
	  fESDVZEROfriend->SetPedestal(pmNumber,iEv,(Float_t)digit->ChargeADC(iEv));
	  fESDVZEROfriend->SetIntegratorFlag(pmNumber,iEv,(iEv%2 == 0) ? integrator : !integrator);
	  fESDVZEROfriend->SetBBFlag(pmNumber,iEv,aBBflag[pmNumber]);
	  fESDVZEROfriend->SetBGFlag(pmNumber,iEv,aBGflag[pmNumber]);
	}
	fESDVZEROfriend->SetTime(pmNumber,digit->Time());
	fESDVZEROfriend->SetWidth(pmNumber,digit->Width());

    } // end of loop over digits
  } // end of loop over events in digits tree
         
  fESDVZERO->SetBit(AliESDVZERO::kCorrectedLeadingTime,kTRUE);
  fESDVZERO->SetMultiplicity(mult);
  fESDVZERO->SetADC(adc);
  fESDVZERO->SetTime(time);
  fESDVZERO->SetWidth(width);
  fESDVZERO->SetBit(AliESDVZERO::kOnlineBitsFilled,kTRUE);
  fESDVZERO->SetBBFlag(aBBflag);
  fESDVZERO->SetBGFlag(aBGflag);

  // now fill the V0 decision and channel flags
  {
    AliVZEROTriggerMask triggerMask;
    triggerMask.FillMasks(fESDVZERO, fCalibData, fTimeSlewing);
  }

  if (esd) { 
     AliDebug(1, Form("Writing VZERO data to ESD tree"));
     esd->SetVZEROData(fESDVZERO);
  }

  if (esd) {
     AliESDfriend *fr = (AliESDfriend*)esd->FindListObject("AliESDfriend");
     if (fr) {
        AliDebug(1, Form("Writing VZERO friend data to ESD tree"));
        fr->SetVZEROfriend(fESDVZEROfriend);
    }
  }

  fDigitsArray->Clear();
}

//_____________________________________________________________________________
AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri) 
{
// Sets the storage  

  Bool_t deleteManager = kFALSE;
  
  AliCDBManager *manager = AliCDBManager::Instance();
  AliCDBStorage *defstorage = manager->GetDefaultStorage();
  
  if(!defstorage || !(defstorage->Contains("VZERO"))){ 
     AliWarning("No default storage set or default storage doesn't contain VZERO!");
     manager->SetDefaultStorage(uri);
     deleteManager = kTRUE;
  }
 
  AliCDBStorage *storage = manager->GetDefaultStorage();

  if(deleteManager){
     AliCDBManager::Instance()->UnsetDefaultStorage();
     defstorage = 0;   // the storage is killed by AliCDBManager::Instance()->Destroy()
  }

  return storage; 
}

//____________________________________________________________________________
void AliVZEROReconstructor::GetCollisionMode()
{
  // Retrieval of collision mode 

  TString beamType = GetRunInfo()->GetBeamType();
  if(beamType==AliGRPObject::GetInvalidString()){
     AliError("VZERO cannot retrieve beam type");
     return;
  }

  if( (beamType.CompareTo("P-P") ==0)  || (beamType.CompareTo("p-p") ==0) ){
    fCollisionMode=0;
  }
  else if( (beamType.CompareTo("Pb-Pb") ==0)  || (beamType.CompareTo("A-A") ==0) ){
    fCollisionMode=1;
  }
    
  fBeamEnergy = GetRunInfo()->GetBeamEnergy();
  if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
     AliError("Missing value for the beam energy ! Using 0");
     fBeamEnergy = 0.;
  }
  
  AliDebug(1,Form("\n ++++++ Beam type and collision mode retrieved as %s %d @ %1.3f GeV ++++++\n\n",beamType.Data(), fCollisionMode, fBeamEnergy));

}

//_____________________________________________________________________________
AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
{
  // Gets calibration object for VZERO set

  AliCDBManager *man = AliCDBManager::Instance();

  AliCDBEntry *entry=0;

  entry = man->Get("VZERO/Calib/Data");

  AliVZEROCalibData *calibdata = 0;

  if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
  if (!calibdata)  AliFatal("No calibration data from calibration database !");

  return calibdata;
}

Float_t AliVZEROReconstructor::CorrectLeadingTime(Int_t i, Float_t time, Float_t adc) const
{
  // Correct the leading time
  // for slewing effect and
  // misalignment of the channels
  if (time < 1e-6) return kInvalidTime;

  // Channel alignment and general offset subtraction
  if (i < 32) time -= kV0CDelayCables;
  time -= fTimeOffset[i];

  // In case of pathological signals
  if (adc < 1e-6) return time;

  // Slewing correction
  Float_t thr = fCalibData->GetDiscriThr(i);
  time -= fTimeSlewing->Eval(adc/thr);

  return time;
}
Commit	Line	Data
b0d2c2d3	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
	16	/* $Id$ */
	17
	18	///////////////////////////////////////////////////////////////////////////////
	19	/// //
	20	/// class for VZERO reconstruction //
	21	/// //
	22	///////////////////////////////////////////////////////////////////////////////
	23
b44c933e	24	#include <TH1F.h>
b44c933e	25	#include <TF1.h>
b6fd9c4a	26	#include <TParameter.h>
b44c933e	27
35b120ff	28	#include "AliRunLoader.h"
2eb38194	29	#include "AliRawReader.h"
fe0adf2a	30	#include "AliGRPObject.h"
	31	#include "AliCDBManager.h"
	32	#include "AliCDBStorage.h"
	33	#include "AliCDBEntry.h"
b0d2c2d3	34	#include "AliVZEROReconstructor.h"
2eb38194	35	#include "AliVZERORawStream.h"
b44c933e	36	#include "AliVZEROConst.h"
b14e6eb4	37	#include "AliESDEvent.h"
a055ee24	38	#include "AliVZEROTriggerMask.h"
b090e6a3	39	#include "AliESDfriend.h"
b090e6a3	40	#include "AliESDVZEROfriend.h"
fad64858	41	#include "AliVZEROdigit.h"
e58b4e66	42	#include "AliVZEROCalibData.h"
75b6bc77	43	#include "AliRunInfo.h"
b44c933e	44	#include "AliCTPTimeParams.h"
b0d2c2d3	45
b0d2c2d3	46	ClassImp(AliVZEROReconstructor)
b0d2c2d3	47
ce7090f5	48	//_____________________________________________________________________________
cb2228e6	49	AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
fe0adf2a	50	fESDVZERO(0x0),
	51	fESD(0x0),
	52	fESDVZEROfriend(0x0),
b44c933e	53	fCalibData(NULL),
b44c933e	54	fTimeSlewing(NULL),
fe0adf2a	55	fCollisionMode(0),
dbf24214	56	fBeamEnergy(0.),
dbf24214	57	fDigitsArray(0)
ce7090f5	58	{
ce7090f5	59	// Default constructor
ce7090f5	60	// Get calibration data
ce7090f5	61
b44c933e	62	fCalibData = GetCalibData();
	63
	64	AliCDBEntry *entry = AliCDBManager::Instance()->Get("GRP/CTP/CTPtiming");
	65	if (!entry) AliFatal("CTP timing parameters are not found in OCDB !");
	66	AliCTPTimeParams ctpParams = (AliCTPTimeParams)entry->GetObject();
	67	Float_t l1Delay = (Float_t)ctpParams->GetDelayL1L0()*25.0;
	68
7905581c	69	AliCDBEntry *entry1 = AliCDBManager::Instance()->Get("GRP/CTP/TimeAlign");
	70	if (!entry1) AliFatal("CTP time-alignment is not found in OCDB !");
	71	AliCTPTimeParams ctpTimeAlign = (AliCTPTimeParams)entry1->GetObject();
	72	l1Delay += ((Float_t)ctpTimeAlign->GetDelayL1L0()*25.0);
	73
b44c933e	74	AliCDBEntry *entry2 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeDelays");
	75	if (!entry2) AliFatal("VZERO time delays are not found in OCDB !");
	76	TH1F delays = (TH1F)entry2->GetObject();
	77
	78	AliCDBEntry *entry3 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeSlewing");
	79	if (!entry3) AliFatal("VZERO time slewing function is not found in OCDB !");
	80	fTimeSlewing = (TF1*)entry3->GetObject();
	81
	82	for(Int_t i = 0 ; i < 64; ++i) {
	83	Int_t board = AliVZEROCalibData::GetBoardNumber(i);
	84	fTimeOffset[i] = (((Float_t)fCalibData->GetTriggerCountOffset(board)-
	85	(Float_t)fCalibData->GetRollOver(board))*25.0+
7905581c	86	fCalibData->GetTimeOffset(i)-
b44c933e	87	l1Delay+
	88	delays->GetBinContent(i+1)+
	89	kV0Offset);
	90	}
ce7090f5	91	}
	92
	93
	94	//_____________________________________________________________________________
	95	AliVZEROReconstructor& AliVZEROReconstructor::operator =
	96	(const AliVZEROReconstructor& /reconstructor/)
	97	{
	98	// assignment operator
	99
	100	Fatal("operator =", "assignment operator not implemented");
	101	return *this;
	102	}
	103
	104	//_____________________________________________________________________________
	105	AliVZEROReconstructor::~AliVZEROReconstructor()
	106	{
	107	// destructor
44b6212f	108
b090e6a3	109	delete fESDVZERO;
b090e6a3	110	delete fESDVZEROfriend;
dbf24214	111	delete fDigitsArray;
35b120ff	112	}
	113
	114	//_____________________________________________________________________________
d76c31f4	115	void AliVZEROReconstructor::Init()
35b120ff	116	{
ef314913	117	// initializer
ce7090f5	118
35b120ff	119	fESDVZERO = new AliESDVZERO;
b090e6a3	120	fESDVZEROfriend = new AliESDVZEROfriend;
fe0adf2a	121
fe0adf2a	122	GetCollisionMode(); // fCollisionMode =1 for Pb-Pb simulated data
35b120ff	123	}
	124
	125	//______________________________________________________________________
2e0ee64a	126	void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
35b120ff	127	{
75b6bc77	128	// converts RAW to digits
ef314913	129
2e0ee64a	130	if (!digitsTree) {
	131	AliError("No digits tree!");
	132	return;
	133	}
35b120ff	134
dbf24214	135	if (!fDigitsArray)
	136	fDigitsArray = new TClonesArray("AliVZEROdigit", 64);
	137	digitsTree->Branch("VZERODigit", &fDigitsArray);
2e0ee64a	138
b090e6a3	139	fESDVZEROfriend->Reset();
b090e6a3	140
2e0ee64a	141	rawReader->Reset();
2e0ee64a	142	AliVZERORawStream rawStream(rawReader);
75b6bc77	143	if (rawStream.Next()) {
1d51e5e5	144
	145	Int_t aBBflagsV0A = 0;
	146	Int_t aBBflagsV0C = 0;
	147	Int_t aBGflagsV0A = 0;
	148	Int_t aBGflagsV0C = 0;
	149
	150	for(Int_t iChannel=0; iChannel < 64; ++iChannel) {
	151	Int_t offlineCh = rawStream.GetOfflineChannel(iChannel);
	152	// ADC charge samples
	153	Short_t chargeADC[AliVZEROdigit::kNClocks];
	154	for(Int_t iClock=0; iClock < AliVZEROdigit::kNClocks; ++iClock) {
	155	chargeADC[iClock] = rawStream.GetPedestal(iChannel,iClock);
	156	}
	157	// Integrator flag
	158	Bool_t integrator = rawStream.GetIntegratorFlag(iChannel,AliVZEROdigit::kNClocks/2);
	159	// Beam-beam and beam-gas flags
	160	if(offlineCh<32) {
	161	if (rawStream.GetBBFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBBflagsV0C \|= (1 << offlineCh);
	162	if (rawStream.GetBGFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBGflagsV0C \|= (1 << offlineCh);
	163	} else {
	164	if (rawStream.GetBBFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBBflagsV0A \|= (1 << (offlineCh-32));
	165	if (rawStream.GetBGFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBGflagsV0A \|= (1 << (offlineCh-32));
	166	}
	167	// HPTDC data (leading time and width)
	168	Int_t board = AliVZEROCalibData::GetBoardNumber(offlineCh);
	169	Float_t time = rawStream.GetTime(iChannel)*fCalibData->GetTimeResolution(board);
	170	Float_t width = rawStream.GetWidth(iChannel)*fCalibData->GetWidthResolution(board);
	171	// Add a digit
	172	if(!fCalibData->IsChannelDead(iChannel)){
	173	new ((*fDigitsArray)[fDigitsArray->GetEntriesFast()])
b47d88ce	174	AliVZEROdigit(offlineCh, time,
1d51e5e5	175	width,integrator,
	176	chargeADC);
	177	}
	178
	179	// Filling the part of esd friend object that is available only for raw data
	180	fESDVZEROfriend->SetBBScalers(offlineCh,rawStream.GetBBScalers(iChannel));
	181	fESDVZEROfriend->SetBGScalers(offlineCh,rawStream.GetBGScalers(iChannel));
	182	for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++) {
	183	fESDVZEROfriend->SetChargeMB(offlineCh,iBunch,rawStream.GetChargeMB(iChannel,iBunch));
	184	fESDVZEROfriend->SetIntMBFlag(offlineCh,iBunch,rawStream.GetIntMBFlag(iChannel,iBunch));
	185	fESDVZEROfriend->SetBBMBFlag(offlineCh,iBunch,rawStream.GetBBMBFlag(iChannel,iBunch));
	186	fESDVZEROfriend->SetBGMBFlag(offlineCh,iBunch,rawStream.GetBGMBFlag(iChannel,iBunch));
	187	}
	188
	189	}
	190
	191	// Filling the global part of esd friend object that is available only for raw data
	192	fESDVZEROfriend->SetTriggerInputs(rawStream.GetTriggerInputs());
	193	fESDVZEROfriend->SetTriggerInputsMask(rawStream.GetTriggerInputsMask());
	194
	195	for(Int_t iScaler = 0; iScaler < AliESDVZEROfriend::kNScalers; iScaler++)
	196	fESDVZEROfriend->SetTriggerScalers(iScaler,rawStream.GetTriggerScalers(iScaler));
	197
	198	for(Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++)
	199	fESDVZEROfriend->SetBunchNumbersMB(iBunch,rawStream.GetBunchNumbersMB(iBunch));
b090e6a3	200
1d51e5e5	201	// Store the BB and BG flags in the digits tree (user info)
	202	digitsTree->GetUserInfo()->Add(new TParameter<int>("BBflagsV0A",aBBflagsV0A));
	203	digitsTree->GetUserInfo()->Add(new TParameter<int>("BBflagsV0C",aBBflagsV0C));
	204	digitsTree->GetUserInfo()->Add(new TParameter<int>("BGflagsV0A",aBGflagsV0A));
	205	digitsTree->GetUserInfo()->Add(new TParameter<int>("BGflagsV0C",aBGflagsV0C));
b090e6a3	206
1d51e5e5	207	digitsTree->Fill();
2e0ee64a	208	}
dbf24214	209
dbf24214	210	fDigitsArray->Clear();
1d51e5e5	211	}
2e0ee64a	212
	213	//______________________________________________________________________
	214	void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /clustersTree/,
b14e6eb4	215	AliESDEvent* esd) const
2e0ee64a	216	{
75b6bc77	217	// fills multiplicities to the ESD - pedestal is now subtracted
fe0adf2a	218
2e0ee64a	219	if (!digitsTree) {
fe0adf2a	220	AliError("No digits tree!");
fe0adf2a	221	return;
2e0ee64a	222	}
a055ee24	223
2e0ee64a	224	TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
dbf24214	225	digitBranch->SetAddress(&fDigitsArray);
35b120ff	226
44b6212f	227	Float_t mult[64];
db0db003	228	Float_t adc[64];
	229	Float_t time[64];
	230	Float_t width[64];
b6fd9c4a	231	Bool_t aBBflag[64];
b6fd9c4a	232	Bool_t aBGflag[64];
d0502ab2	233
35b120ff	234	for (Int_t i=0; i<64; i++){
db0db003	235	adc[i] = 0.0;
d0502ab2	236	mult[i] = 0.0;
b44c933e	237	time[i] = kInvalidTime;
db0db003	238	width[i] = 0.0;
b6fd9c4a	239	aBBflag[i] = kFALSE;
b6fd9c4a	240	aBGflag[i] = kFALSE;
a055ee24	241	}
35b120ff	242
b6fd9c4a	243	Int_t aBBflagsV0A = 0;
	244	Int_t aBBflagsV0C = 0;
	245	Int_t aBGflagsV0A = 0;
	246	Int_t aBGflagsV0C = 0;
	247
	248	if (digitsTree->GetUserInfo()->FindObject("BBflagsV0A")) {
	249	aBBflagsV0A = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BBflagsV0A"))->GetVal();
	250	}
	251	else
	252	AliWarning("V0A beam-beam flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");
	253
	254	if (digitsTree->GetUserInfo()->FindObject("BBflagsV0C")) {
	255	aBBflagsV0C = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BBflagsV0C"))->GetVal();
	256	}
	257	else
	258	AliWarning("V0C beam-beam flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");
	259
	260	if (digitsTree->GetUserInfo()->FindObject("BGflagsV0A")) {
	261	aBGflagsV0A = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BGflagsV0A"))->GetVal();
	262	}
	263	else
	264	AliWarning("V0A beam-gas flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");
	265
	266	if (digitsTree->GetUserInfo()->FindObject("BGflagsV0C")) {
	267	aBGflagsV0C = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BGflagsV0C"))->GetVal();
	268	}
	269	else
	270	AliWarning("V0C beam-gas flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");
	271
1d51e5e5	272	// Beam-beam and beam-gas flags (hardware)
	273	for (Int_t iChannel = 0; iChannel < 64; ++iChannel) {
	274	if(iChannel < 32) {
	275	aBBflag[iChannel] = (aBBflagsV0C >> iChannel) & 0x1;
	276	aBGflag[iChannel] = (aBGflagsV0C >> iChannel) & 0x1;
	277	}
	278	else {
	279	aBBflag[iChannel] = (aBBflagsV0A >> (iChannel-32)) & 0x1;
	280	aBGflag[iChannel] = (aBGflagsV0A >> (iChannel-32)) & 0x1;
	281	}
	282	}
b6fd9c4a	283
2e0ee64a	284	Int_t nEntries = (Int_t)digitsTree->GetEntries();
35b120ff	285	for (Int_t e=0; e<nEntries; e++) {
2e0ee64a	286	digitsTree->GetEvent(e);
35b120ff	287
dbf24214	288	Int_t nDigits = fDigitsArray->GetEntriesFast();
35b120ff	289
35b120ff	290	for (Int_t d=0; d<nDigits; d++) {
dbf24214	291	AliVZEROdigit* digit = (AliVZEROdigit*) fDigitsArray->At(d);
1d51e5e5	292	Int_t pmNumber = digit->PMNumber();
	293
	294	// Pedestal retrieval and suppression
	295	Bool_t integrator = digit->Integrator();
	296	Float_t maxadc = 0;
	297	Int_t imax = -1;
	298	Float_t adcPedSub[AliVZEROdigit::kNClocks];
	299	for(Int_t iClock=0; iClock < AliVZEROdigit::kNClocks; ++iClock) {
	300	Short_t charge = digit->ChargeADC(iClock);
	301	Bool_t iIntegrator = (iClock%2 == 0) ? integrator : !integrator;
	302	Int_t k = pmNumber + 64*iIntegrator;
	303	adcPedSub[iClock] = (Float_t)charge - fCalibData->GetPedestal(k);
	304	if(adcPedSub[iClock] <= GetRecoParam()->GetNSigmaPed()*fCalibData->GetSigma(k)) {
	305	adcPedSub[iClock] = 0;
	306	continue;
	307	}
	308	if(iClock < GetRecoParam()->GetStartClock() \|\| iClock > GetRecoParam()->GetEndClock()) continue;
	309	if(adcPedSub[iClock] > maxadc) {
	310	maxadc = adcPedSub[iClock];
	311	imax = iClock;
	312	}
b6fd9c4a	313	}
1d51e5e5	314
	315	if (imax != -1) {
	316	Int_t start = imax - GetRecoParam()->GetNPreClocks();
	317	if (start < 0) start = 0;
	318	Int_t end = imax + GetRecoParam()->GetNPostClocks();
	319	if (end > 20) end = 20;
	320	for(Int_t iClock = start; iClock <= end; iClock++) {
	321	adc[pmNumber] += adcPedSub[iClock];
	322	}
b6fd9c4a	323	}
b6fd9c4a	324
1d51e5e5	325	// HPTDC leading time and width
	326	// Correction for slewing and various time delays
	327	time[pmNumber] = CorrectLeadingTime(pmNumber,digit->Time(),adc[pmNumber]);
	328	width[pmNumber] = digit->Width();
	329
	330	if (adc[pmNumber] > 0) AliDebug(1,Form("PM = %d ADC = %f TDC %f (%f) Int %d (%d %d %d %d %d) %f %f %f %f %d %d",pmNumber, adc[pmNumber],
	331	digit->Time(),time[pmNumber],
b6fd9c4a	332	integrator,
	333	digit->ChargeADC(8),digit->ChargeADC(9),digit->ChargeADC(10),
	334	digit->ChargeADC(11),digit->ChargeADC(12),
	335	fCalibData->GetPedestal(pmNumber),fCalibData->GetSigma(pmNumber),
	336	fCalibData->GetPedestal(pmNumber+64),fCalibData->GetSigma(pmNumber+64),
	337	aBBflag[pmNumber],aBGflag[pmNumber]));
75b6bc77	338
1d51e5e5	339	mult[pmNumber] = adc[pmNumber]*fCalibData->GetMIPperADC(pmNumber);
	340
	341	// Fill ESD friend object
	342	for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
	343	fESDVZEROfriend->SetPedestal(pmNumber,iEv,(Float_t)digit->ChargeADC(iEv));
	344	fESDVZEROfriend->SetIntegratorFlag(pmNumber,iEv,(iEv%2 == 0) ? integrator : !integrator);
	345	fESDVZEROfriend->SetBBFlag(pmNumber,iEv,aBBflag[pmNumber]);
	346	fESDVZEROfriend->SetBGFlag(pmNumber,iEv,aBGflag[pmNumber]);
	347	}
	348	fESDVZEROfriend->SetTime(pmNumber,digit->Time());
	349	fESDVZEROfriend->SetWidth(pmNumber,digit->Width());
	350
35b120ff	351	} // end of loop over digits
35b120ff	352	} // end of loop over events in digits tree
6c6d6114	353
b44c933e	354	fESDVZERO->SetBit(AliESDVZERO::kCorrectedLeadingTime,kTRUE);
6c6d6114	355	fESDVZERO->SetMultiplicity(mult);
28fdf12c	356	fESDVZERO->SetADC(adc);
28fdf12c	357	fESDVZERO->SetTime(time);
d0502ab2	358	fESDVZERO->SetWidth(width);
89a39339	359	fESDVZERO->SetBit(AliESDVZERO::kOnlineBitsFilled,kTRUE);
b6fd9c4a	360	fESDVZERO->SetBBFlag(aBBflag);
b6fd9c4a	361	fESDVZERO->SetBGFlag(aBGflag);
a055ee24	362
b44c933e	363	// now fill the V0 decision and channel flags
	364	{
	365	AliVZEROTriggerMask triggerMask;
	366	triggerMask.FillMasks(fESDVZERO, fCalibData, fTimeSlewing);
	367	}
a055ee24	368
2e0ee64a	369	if (esd) {
44b6212f	370	AliDebug(1, Form("Writing VZERO data to ESD tree"));
44b6212f	371	esd->SetVZEROData(fESDVZERO);
2e0ee64a	372	}
b090e6a3	373
b090e6a3	374	if (esd) {
fe0adf2a	375	AliESDfriend fr = (AliESDfriend)esd->FindListObject("AliESDfriend");
	376	if (fr) {
	377	AliDebug(1, Form("Writing VZERO friend data to ESD tree"));
	378	fr->SetVZEROfriend(fESDVZEROfriend);
b090e6a3	379	}
b090e6a3	380	}
dbf24214	381
dbf24214	382	fDigitsArray->Clear();
35b120ff	383	}
35b120ff	384
ce7090f5	385	//_____________________________________________________________________________
	386	AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
	387	{
ef314913	388	// Sets the storage
ef314913	389
ce7090f5	390	Bool_t deleteManager = kFALSE;
	391
	392	AliCDBManager *manager = AliCDBManager::Instance();
	393	AliCDBStorage *defstorage = manager->GetDefaultStorage();
	394
	395	if(!defstorage \|\| !(defstorage->Contains("VZERO"))){
	396	AliWarning("No default storage set or default storage doesn't contain VZERO!");
	397	manager->SetDefaultStorage(uri);
	398	deleteManager = kTRUE;
	399	}
	400
	401	AliCDBStorage *storage = manager->GetDefaultStorage();
	402
	403	if(deleteManager){
44b6212f	404	AliCDBManager::Instance()->UnsetDefaultStorage();
44b6212f	405	defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
ce7090f5	406	}
	407
	408	return storage;
	409	}
	410
fe0adf2a	411	//____________________________________________________________________________
	412	void AliVZEROReconstructor::GetCollisionMode()
	413	{
75b6bc77	414	// Retrieval of collision mode
fe0adf2a	415
75b6bc77	416	TString beamType = GetRunInfo()->GetBeamType();
fe0adf2a	417	if(beamType==AliGRPObject::GetInvalidString()){
75b6bc77	418	AliError("VZERO cannot retrieve beam type");
fe0adf2a	419	return;
	420	}
	421
75b6bc77	422	if( (beamType.CompareTo("P-P") ==0) \|\| (beamType.CompareTo("p-p") ==0) ){
	423	fCollisionMode=0;
	424	}
	425	else if( (beamType.CompareTo("Pb-Pb") ==0) \|\| (beamType.CompareTo("A-A") ==0) ){
	426	fCollisionMode=1;
fe0adf2a	427	}
fe0adf2a	428
75b6bc77	429	fBeamEnergy = GetRunInfo()->GetBeamEnergy();
fe0adf2a	430	if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
75b6bc77	431	AliError("Missing value for the beam energy ! Using 0");
fe0adf2a	432	fBeamEnergy = 0.;
	433	}
	434
75b6bc77	435	AliDebug(1,Form("\n ++++++ Beam type and collision mode retrieved as %s %d @ %1.3f GeV ++++++\n\n",beamType.Data(), fCollisionMode, fBeamEnergy));
fe0adf2a	436
	437	}
	438
ce7090f5	439	//_____________________________________________________________________________
	440	AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
	441	{
ef314913	442	// Gets calibration object for VZERO set
ce7090f5	443
c0b82b5a	444	AliCDBManager *man = AliCDBManager::Instance();
ce7090f5	445
c0b82b5a	446	AliCDBEntry *entry=0;
	447
	448	entry = man->Get("VZERO/Calib/Data");
	449
c0b82b5a	450	AliVZEROCalibData *calibdata = 0;
	451
	452	if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
94a600a1	453	if (!calibdata) AliFatal("No calibration data from calibration database !");
ce7090f5	454
	455	return calibdata;
	456	}
44b6212f	457
b44c933e	458	Float_t AliVZEROReconstructor::CorrectLeadingTime(Int_t i, Float_t time, Float_t adc) const
	459	{
	460	// Correct the leading time
	461	// for slewing effect and
	462	// misalignment of the channels
	463	if (time < 1e-6) return kInvalidTime;
	464
	465	// Channel alignment and general offset subtraction
	466	if (i < 32) time -= kV0CDelayCables;
	467	time -= fTimeOffset[i];
	468
	469	// In case of pathological signals
	470	if (adc < 1e-6) return time;
	471
	472	// Slewing correction
	473	Float_t thr = fCalibData->GetDiscriThr(i);
	474	time -= fTimeSlewing->Eval(adc/thr);
	475
	476	return time;
	477	}