[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 "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 *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()) { 
     Float_t adc[64]; 
     Float_t time[64], width[64];  
     Bool_t BBFlag[64], BGFlag[64], integrator[64];
     for(Int_t i=0; i<64; i++) {
       Int_t j   =  rawStream.GetOfflineChannel(i);
       adc[j]    = 0.0;
       time[j]   = 0.0;
       width[j]  = 0.0;
       BBFlag[j] = kFALSE;
       BGFlag[j] = kFALSE;
       integrator[j] = kFALSE;
       // Search for the maximum charge in the train of 21 LHC clocks 
       // regardless of the integrator which has been operated:
       Float_t maxadc = 0;
       Int_t imax = -1;
       Float_t adcPedSub[21];
       for(Int_t iClock=0; iClock<21; iClock++){
	 Bool_t iIntegrator = rawStream.GetIntegratorFlag(i,iClock);
	 Int_t k = j+64*iIntegrator;
	 adcPedSub[iClock] = rawStream.GetPedestal(i,iClock) - 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;
	 }
       }

       AliDebug(2,Form("Channel %d (online), %d (offline)",i,j)); 
	 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++) {
	     if (iClock >= imax) {
	       BBFlag[j] |= rawStream.GetBBFlag(i,iClock);
	       BGFlag[j] |= rawStream.GetBGFlag(i,iClock);
	     }
	     if (iClock == imax)
	       adc[j] += rawStream.GetPedestal(i,iClock);
	     else 
	       adc[j] += adcPedSub[iClock];

	     AliDebug(2,Form("clock = %d adc = %f",iClock,rawStream.GetPedestal(i,iClock))); 
	   }
	   // Convert i (FEE channel numbering) to j (aliroot channel numbering)

	   integrator[j] =  rawStream.GetIntegratorFlag(i,imax); 
	 }

	 Int_t board   = j / 8;
	 time[j]       =  rawStream.GetTime(i)/ (25./256.) * fCalibData->GetTimeResolution(board);
	 width[j]      =  rawStream.GetWidth(i) / 0.4 * fCalibData->GetWidthResolution(board);

	 // Filling the esd friend object
	 fESDVZEROfriend->SetBBScalers(j,rawStream.GetBBScalers(i));
	 fESDVZEROfriend->SetBGScalers(j,rawStream.GetBGScalers(i));
	 for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++) {
	     fESDVZEROfriend->SetChargeMB(j,iBunch,rawStream.GetChargeMB(i,iBunch));
	     fESDVZEROfriend->SetIntMBFlag(j,iBunch,rawStream.GetIntMBFlag(i,iBunch));
	     fESDVZEROfriend->SetBBMBFlag(j,iBunch,rawStream.GetBBMBFlag(i,iBunch));
	     fESDVZEROfriend->SetBGMBFlag(j,iBunch,rawStream.GetBGMBFlag(i,iBunch));
	 }
	 for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
	     fESDVZEROfriend->SetPedestal(j,iEv,rawStream.GetPedestal(i,iEv));
	     fESDVZEROfriend->SetIntegratorFlag(j,iEv,rawStream.GetIntegratorFlag(i,iEv));
	     fESDVZEROfriend->SetBBFlag(j,iEv,rawStream.GetBBFlag(i,iEv));
	     fESDVZEROfriend->SetBGFlag(j,iEv,rawStream.GetBGFlag(i,iEv));
	 }
	 fESDVZEROfriend->SetTime(j,time[j]);
	 fESDVZEROfriend->SetWidth(j,width[j]);
     }  

     // Filling the esd friend object
     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));
     

     // Channels(aliroot numbering) will be ordered in the tree
     for(Int_t iChannel = 0; iChannel < 64; iChannel++) {
         if(fCalibData->IsChannelDead(iChannel)){
	    adc[iChannel]  = (Float_t) kInvalidADC; 
	    time[iChannel] = (Float_t) kInvalidTime;	 
         }
	 if (adc[iChannel] > 0)
	   new ((*fDigitsArray)[fDigitsArray->GetEntriesFast()])
             AliVZEROdigit(iChannel, adc[iChannel], time[iChannel],
	                   width[iChannel], BBFlag[iChannel], BGFlag[iChannel],integrator[iChannel]);
        
     }          
     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  BBFlag[64];
  Bool_t  BGFlag[64];
   
  for (Int_t i=0; i<64; i++){
       adc[i]    = 0.0;
       mult[i]   = 0.0;
       time[i]   = kInvalidTime;
       width[i]  = 0.0;
       BBFlag[i] = kFALSE;
       BGFlag[i] = kFALSE;
  }
     
  // loop over VZERO entries to get multiplicity
  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();
	Int_t k = pmNumber+64*integrator;
        Float_t  pedestal    = fCalibData->GetPedestal(k);
        adc[pmNumber]   =  digit->ADC() - pedestal; 
        time[pmNumber]  =  CorrectLeadingTime(pmNumber,digit->Time(),adc[pmNumber]);
	width[pmNumber] =  digit->Width();
	BBFlag[pmNumber]=  digit->BBFlag();
	BGFlag[pmNumber]=  digit->BGFlag();

	AliDebug(2,Form("PM = %d ADC = %f TDC %f",pmNumber, digit->ADC(),digit->Time()));

	if(adc[pmNumber] > (fCalibData->GetPedestal(k) + GetRecoParam()->GetNSigmaPed()*fCalibData->GetSigma(k))) {
	    mult[pmNumber] += adc[pmNumber]*fCalibData->GetMIPperADC(pmNumber);
        } 	    
    } // 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->SetBBFlag(BBFlag);
  fESDVZERO->SetBGFlag(BGFlag);

  // 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
	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
	24	#include <TH1F.h>
	25	#include <TF1.h>
	26
	27	#include "AliRunLoader.h"
	28	#include "AliRawReader.h"
	29	#include "AliGRPObject.h"
	30	#include "AliCDBManager.h"
	31	#include "AliCDBStorage.h"
	32	#include "AliCDBEntry.h"
	33	#include "AliVZEROReconstructor.h"
	34	#include "AliVZERORawStream.h"
	35	#include "AliVZEROConst.h"
	36	#include "AliESDEvent.h"
	37	#include "AliVZEROTriggerMask.h"
	38	#include "AliESDfriend.h"
	39	#include "AliESDVZEROfriend.h"
	40	#include "AliVZEROdigit.h"
	41	#include "AliVZEROCalibData.h"
	42	#include "AliRunInfo.h"
	43	#include "AliCTPTimeParams.h"
	44
	45	ClassImp(AliVZEROReconstructor)
	46
	47	//_____________________________________________________________________________
	48	AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
	49	fESDVZERO(0x0),
	50	fESD(0x0),
	51	fESDVZEROfriend(0x0),
	52	fCalibData(NULL),
	53	fTimeSlewing(NULL),
	54	fCollisionMode(0),
	55	fBeamEnergy(0.),
	56	fDigitsArray(0)
	57	{
	58	// Default constructor
	59	// Get calibration data
	60
	61	fCalibData = GetCalibData();
	62
	63	AliCDBEntry *entry = AliCDBManager::Instance()->Get("GRP/CTP/CTPtiming");
	64	if (!entry) AliFatal("CTP timing parameters are not found in OCDB !");
	65	AliCTPTimeParams ctpParams = (AliCTPTimeParams)entry->GetObject();
	66	Float_t l1Delay = (Float_t)ctpParams->GetDelayL1L0()*25.0;
	67
	68	AliCDBEntry *entry2 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeDelays");
	69	if (!entry2) AliFatal("VZERO time delays are not found in OCDB !");
	70	TH1F delays = (TH1F)entry2->GetObject();
	71
	72	AliCDBEntry *entry3 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeSlewing");
	73	if (!entry3) AliFatal("VZERO time slewing function is not found in OCDB !");
	74	fTimeSlewing = (TF1*)entry3->GetObject();
	75
	76	for(Int_t i = 0 ; i < 64; ++i) {
	77	Int_t board = AliVZEROCalibData::GetBoardNumber(i);
	78	fTimeOffset[i] = (((Float_t)fCalibData->GetTriggerCountOffset(board)-
	79	(Float_t)fCalibData->GetRollOver(board))*25.0+
	80	fCalibData->GetTimeOffset(i)+
	81	l1Delay+
	82	delays->GetBinContent(i+1)+
	83	kV0Offset);
	84	}
	85	}
	86
	87
	88	//_____________________________________________________________________________
	89	AliVZEROReconstructor& AliVZEROReconstructor::operator =
	90	(const AliVZEROReconstructor& /reconstructor/)
	91	{
	92	// assignment operator
	93
	94	Fatal("operator =", "assignment operator not implemented");
	95	return *this;
	96	}
	97
	98	//_____________________________________________________________________________
	99	AliVZEROReconstructor::~AliVZEROReconstructor()
	100	{
	101	// destructor
	102
	103	delete fESDVZERO;
	104	delete fESDVZEROfriend;
	105	delete fDigitsArray;
	106	}
	107
	108	//_____________________________________________________________________________
	109	void AliVZEROReconstructor::Init()
	110	{
	111	// initializer
	112
	113	fESDVZERO = new AliESDVZERO;
	114	fESDVZEROfriend = new AliESDVZEROfriend;
	115
	116	GetCollisionMode(); // fCollisionMode =1 for Pb-Pb simulated data
	117	}
	118
	119	//______________________________________________________________________
	120	void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
	121	{
	122	// converts RAW to digits
	123
	124	if (!digitsTree) {
	125	AliError("No digits tree!");
	126	return;
	127	}
	128
	129	if (!fDigitsArray)
	130	fDigitsArray = new TClonesArray("AliVZEROdigit", 64);
	131	digitsTree->Branch("VZERODigit", &fDigitsArray);
	132
	133	fESDVZEROfriend->Reset();
	134
	135	rawReader->Reset();
	136	AliVZERORawStream rawStream(rawReader);
	137	if (rawStream.Next()) {
	138	Float_t adc[64];
	139	Float_t time[64], width[64];
	140	Bool_t BBFlag[64], BGFlag[64], integrator[64];
	141	for(Int_t i=0; i<64; i++) {
	142	Int_t j = rawStream.GetOfflineChannel(i);
	143	adc[j] = 0.0;
	144	time[j] = 0.0;
	145	width[j] = 0.0;
	146	BBFlag[j] = kFALSE;
	147	BGFlag[j] = kFALSE;
	148	integrator[j] = kFALSE;
	149	// Search for the maximum charge in the train of 21 LHC clocks
	150	// regardless of the integrator which has been operated:
	151	Float_t maxadc = 0;
	152	Int_t imax = -1;
	153	Float_t adcPedSub[21];
	154	for(Int_t iClock=0; iClock<21; iClock++){
	155	Bool_t iIntegrator = rawStream.GetIntegratorFlag(i,iClock);
	156	Int_t k = j+64*iIntegrator;
	157	adcPedSub[iClock] = rawStream.GetPedestal(i,iClock) - fCalibData->GetPedestal(k);
	158	if(adcPedSub[iClock] <= GetRecoParam()->GetNSigmaPed()*fCalibData->GetSigma(k)) {
	159	adcPedSub[iClock] = 0;
	160	continue;
	161	}
	162	if(iClock < GetRecoParam()->GetStartClock() \|\| iClock > GetRecoParam()->GetEndClock()) continue;
	163	if(adcPedSub[iClock] > maxadc) {
	164	maxadc = adcPedSub[iClock];
	165	imax = iClock;
	166	}
	167	}
	168
	169	AliDebug(2,Form("Channel %d (online), %d (offline)",i,j));
	170	if (imax != -1) {
	171	Int_t start = imax - GetRecoParam()->GetNPreClocks();
	172	if (start < 0) start = 0;
	173	Int_t end = imax + GetRecoParam()->GetNPostClocks();
	174	if (end > 20) end = 20;
	175	for(Int_t iClock = start; iClock <= end; iClock++) {
	176	if (iClock >= imax) {
	177	BBFlag[j] \|= rawStream.GetBBFlag(i,iClock);
	178	BGFlag[j] \|= rawStream.GetBGFlag(i,iClock);
	179	}
	180	if (iClock == imax)
	181	adc[j] += rawStream.GetPedestal(i,iClock);
	182	else
	183	adc[j] += adcPedSub[iClock];
	184
	185	AliDebug(2,Form("clock = %d adc = %f",iClock,rawStream.GetPedestal(i,iClock)));
	186	}
	187	// Convert i (FEE channel numbering) to j (aliroot channel numbering)
	188
	189	integrator[j] = rawStream.GetIntegratorFlag(i,imax);
	190	}
	191
	192	Int_t board = j / 8;
	193	time[j] = rawStream.GetTime(i)/ (25./256.) * fCalibData->GetTimeResolution(board);
	194	width[j] = rawStream.GetWidth(i) / 0.4 * fCalibData->GetWidthResolution(board);
	195
	196	// Filling the esd friend object
	197	fESDVZEROfriend->SetBBScalers(j,rawStream.GetBBScalers(i));
	198	fESDVZEROfriend->SetBGScalers(j,rawStream.GetBGScalers(i));
	199	for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++) {
	200	fESDVZEROfriend->SetChargeMB(j,iBunch,rawStream.GetChargeMB(i,iBunch));
	201	fESDVZEROfriend->SetIntMBFlag(j,iBunch,rawStream.GetIntMBFlag(i,iBunch));
	202	fESDVZEROfriend->SetBBMBFlag(j,iBunch,rawStream.GetBBMBFlag(i,iBunch));
	203	fESDVZEROfriend->SetBGMBFlag(j,iBunch,rawStream.GetBGMBFlag(i,iBunch));
	204	}
	205	for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
	206	fESDVZEROfriend->SetPedestal(j,iEv,rawStream.GetPedestal(i,iEv));
	207	fESDVZEROfriend->SetIntegratorFlag(j,iEv,rawStream.GetIntegratorFlag(i,iEv));
	208	fESDVZEROfriend->SetBBFlag(j,iEv,rawStream.GetBBFlag(i,iEv));
	209	fESDVZEROfriend->SetBGFlag(j,iEv,rawStream.GetBGFlag(i,iEv));
	210	}
	211	fESDVZEROfriend->SetTime(j,time[j]);
	212	fESDVZEROfriend->SetWidth(j,width[j]);
	213	}
	214
	215	// Filling the esd friend object
	216	fESDVZEROfriend->SetTriggerInputs(rawStream.GetTriggerInputs());
	217	fESDVZEROfriend->SetTriggerInputsMask(rawStream.GetTriggerInputsMask());
	218
	219	for(Int_t iScaler = 0; iScaler < AliESDVZEROfriend::kNScalers; iScaler++)
	220	fESDVZEROfriend->SetTriggerScalers(iScaler,rawStream.GetTriggerScalers(iScaler));
	221
	222	for(Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++)
	223	fESDVZEROfriend->SetBunchNumbersMB(iBunch,rawStream.GetBunchNumbersMB(iBunch));
	224
	225
	226	// Channels(aliroot numbering) will be ordered in the tree
	227	for(Int_t iChannel = 0; iChannel < 64; iChannel++) {
	228	if(fCalibData->IsChannelDead(iChannel)){
	229	adc[iChannel] = (Float_t) kInvalidADC;
	230	time[iChannel] = (Float_t) kInvalidTime;
	231	}
	232	if (adc[iChannel] > 0)
	233	new ((*fDigitsArray)[fDigitsArray->GetEntriesFast()])
	234	AliVZEROdigit(iChannel, adc[iChannel], time[iChannel],
	235	width[iChannel], BBFlag[iChannel], BGFlag[iChannel],integrator[iChannel]);
	236
	237	}
	238	digitsTree->Fill();
	239	}
	240
	241	fDigitsArray->Clear();
	242	}
	243
	244	//______________________________________________________________________
	245	void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /clustersTree/,
	246	AliESDEvent* esd) const
	247	{
	248	// fills multiplicities to the ESD - pedestal is now subtracted
	249
	250	if (!digitsTree) {
	251	AliError("No digits tree!");
	252	return;
	253	}
	254
	255	TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
	256	digitBranch->SetAddress(&fDigitsArray);
	257
	258	Float_t mult[64];
	259	Float_t adc[64];
	260	Float_t time[64];
	261	Float_t width[64];
	262	Bool_t BBFlag[64];
	263	Bool_t BGFlag[64];
	264
	265	for (Int_t i=0; i<64; i++){
	266	adc[i] = 0.0;
	267	mult[i] = 0.0;
	268	time[i] = kInvalidTime;
	269	width[i] = 0.0;
	270	BBFlag[i] = kFALSE;
	271	BGFlag[i] = kFALSE;
	272	}
	273
	274	// loop over VZERO entries to get multiplicity
	275	Int_t nEntries = (Int_t)digitsTree->GetEntries();
	276	for (Int_t e=0; e<nEntries; e++) {
	277	digitsTree->GetEvent(e);
	278
	279	Int_t nDigits = fDigitsArray->GetEntriesFast();
	280
	281	for (Int_t d=0; d<nDigits; d++) {
	282	AliVZEROdigit* digit = (AliVZEROdigit*) fDigitsArray->At(d);
	283	Int_t pmNumber = digit->PMNumber();
	284	// Pedestal retrieval and suppression:
	285	Bool_t integrator = digit->Integrator();
	286	Int_t k = pmNumber+64*integrator;
	287	Float_t pedestal = fCalibData->GetPedestal(k);
	288	adc[pmNumber] = digit->ADC() - pedestal;
	289	time[pmNumber] = CorrectLeadingTime(pmNumber,digit->Time(),adc[pmNumber]);
	290	width[pmNumber] = digit->Width();
	291	BBFlag[pmNumber]= digit->BBFlag();
	292	BGFlag[pmNumber]= digit->BGFlag();
	293
	294	AliDebug(2,Form("PM = %d ADC = %f TDC %f",pmNumber, digit->ADC(),digit->Time()));
	295
	296	if(adc[pmNumber] > (fCalibData->GetPedestal(k) + GetRecoParam()->GetNSigmaPed()*fCalibData->GetSigma(k))) {
	297	mult[pmNumber] += adc[pmNumber]*fCalibData->GetMIPperADC(pmNumber);
	298	}
	299	} // end of loop over digits
	300	} // end of loop over events in digits tree
	301
	302	fESDVZERO->SetBit(AliESDVZERO::kCorrectedLeadingTime,kTRUE);
	303	fESDVZERO->SetMultiplicity(mult);
	304	fESDVZERO->SetADC(adc);
	305	fESDVZERO->SetTime(time);
	306	fESDVZERO->SetWidth(width);
	307	fESDVZERO->SetBBFlag(BBFlag);
	308	fESDVZERO->SetBGFlag(BGFlag);
	309
	310	// now fill the V0 decision and channel flags
	311	{
	312	AliVZEROTriggerMask triggerMask;
	313	triggerMask.FillMasks(fESDVZERO, fCalibData, fTimeSlewing);
	314	}
	315
	316	if (esd) {
	317	AliDebug(1, Form("Writing VZERO data to ESD tree"));
	318	esd->SetVZEROData(fESDVZERO);
	319	}
	320
	321	if (esd) {
	322	AliESDfriend fr = (AliESDfriend)esd->FindListObject("AliESDfriend");
	323	if (fr) {
	324	AliDebug(1, Form("Writing VZERO friend data to ESD tree"));
	325	fr->SetVZEROfriend(fESDVZEROfriend);
	326	}
	327	}
	328
	329	fDigitsArray->Clear();
	330	}
	331
	332	//_____________________________________________________________________________
	333	AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
	334	{
	335	// Sets the storage
	336
	337	Bool_t deleteManager = kFALSE;
	338
	339	AliCDBManager *manager = AliCDBManager::Instance();
	340	AliCDBStorage *defstorage = manager->GetDefaultStorage();
	341
	342	if(!defstorage \|\| !(defstorage->Contains("VZERO"))){
	343	AliWarning("No default storage set or default storage doesn't contain VZERO!");
	344	manager->SetDefaultStorage(uri);
	345	deleteManager = kTRUE;
	346	}
	347
	348	AliCDBStorage *storage = manager->GetDefaultStorage();
	349
	350	if(deleteManager){
	351	AliCDBManager::Instance()->UnsetDefaultStorage();
	352	defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
	353	}
	354
	355	return storage;
	356	}
	357
	358	//____________________________________________________________________________
	359	void AliVZEROReconstructor::GetCollisionMode()
	360	{
	361	// Retrieval of collision mode
	362
	363	TString beamType = GetRunInfo()->GetBeamType();
	364	if(beamType==AliGRPObject::GetInvalidString()){
	365	AliError("VZERO cannot retrieve beam type");
	366	return;
	367	}
	368
	369	if( (beamType.CompareTo("P-P") ==0) \|\| (beamType.CompareTo("p-p") ==0) ){
	370	fCollisionMode=0;
	371	}
	372	else if( (beamType.CompareTo("Pb-Pb") ==0) \|\| (beamType.CompareTo("A-A") ==0) ){
	373	fCollisionMode=1;
	374	}
	375
	376	fBeamEnergy = GetRunInfo()->GetBeamEnergy();
	377	if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
	378	AliError("Missing value for the beam energy ! Using 0");
	379	fBeamEnergy = 0.;
	380	}
	381
	382	AliDebug(1,Form("\n ++++++ Beam type and collision mode retrieved as %s %d @ %1.3f GeV ++++++\n\n",beamType.Data(), fCollisionMode, fBeamEnergy));
	383
	384	}
	385
	386	//_____________________________________________________________________________
	387	AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
	388	{
	389	// Gets calibration object for VZERO set
	390
	391	AliCDBManager *man = AliCDBManager::Instance();
	392
	393	AliCDBEntry *entry=0;
	394
	395	entry = man->Get("VZERO/Calib/Data");
	396
	397	AliVZEROCalibData *calibdata = 0;
	398
	399	if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
	400	if (!calibdata) AliFatal("No calibration data from calibration database !");
	401
	402	return calibdata;
	403	}
	404
	405	Float_t AliVZEROReconstructor::CorrectLeadingTime(Int_t i, Float_t time, Float_t adc) const
	406	{
	407	// Correct the leading time
	408	// for slewing effect and
	409	// misalignment of the channels
	410	if (time < 1e-6) return kInvalidTime;
	411
	412	// Channel alignment and general offset subtraction
	413	if (i < 32) time -= kV0CDelayCables;
	414	time -= fTimeOffset[i];
	415
	416	// In case of pathological signals
	417	if (adc < 1e-6) return time;
	418
	419	// Slewing correction
	420	Float_t thr = fCalibData->GetDiscriThr(i);
	421	time -= fTimeSlewing->Eval(adc/thr);
	422
	423	return time;
	424	}