[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 "AliRunLoader.h"
#include "AliRawReader.h"
#include "AliGRPObject.h"
#include "AliCDBManager.h"
#include "AliCDBStorage.h"
#include "AliCDBEntry.h"
#include "AliVZEROReconstructor.h"
#include "AliVZERORawStream.h"
#include "AliESDEvent.h"
#include "AliVZEROTriggerMask.h"
#include "AliESDfriend.h"
#include "AliESDVZEROfriend.h"
#include "AliVZEROdigit.h"

ClassImp(AliVZEROReconstructor)

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

}


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

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

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

   delete fESDVZERO;
   delete fESDVZEROfriend;
}

//_____________________________________________________________________________
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 - pedestal is subtracted 

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

  TClonesArray* digitsArray = new TClonesArray("AliVZEROdigit");
  digitsTree->Branch("VZERODigit", &digitsArray);

  fESDVZEROfriend->Reset();

  rawReader->Reset();
  AliVZERORawStream rawStream(rawReader);
  if (rawStream.Next()) {  
     Float_t ADC_max[64], adc[64]; 
     Bool_t BBFlag[64], BGFlag[64], integrator[64]; 
     Float_t time[64], width[64];  
     for(Int_t i=0; i<64; i++) {
         // Search for the maximum charge in the train of 21 LHC clocks 
         // regardless of the integrator which has been operated:
         ADC_max[i] = 0.0;
	 Int_t imax = 0;
         for(Int_t iClock=0; iClock<21; iClock++){
             if(rawStream.GetPedestal(i,iClock) > ADC_max[i])  
	        {ADC_max[i]= rawStream.GetPedestal(i,iClock);
		 imax      = iClock;}
         }
	 // Convert i (FEE channel numbering) to j (aliroot channel numbering)
	 Int_t j       =  rawStream.GetOfflineChannel(i);
	 adc[j]        =  ADC_max[i];
	 time[j]       =  rawStream.GetTime(i);
	 width[j]      =  rawStream.GetWidth(i);
	 BBFlag[j]     =  rawStream.GetBBFlag(i,imax);
	 BGFlag[j]     =  rawStream.GetBGFlag(i,imax); 
	 integrator[j] =  rawStream.GetIntegratorFlag(i,imax); 

	 // 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,rawStream.GetTime(i));
	 fESDVZEROfriend->SetWidth(j,rawStream.GetWidth(i));
     }  

     // 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++) {
         new ((*digitsArray)[digitsArray->GetEntriesFast()])
             AliVZEROdigit(iChannel, adc[iChannel], time[iChannel],
	                   width[iChannel], BBFlag[iChannel], BGFlag[iChannel],integrator[iChannel]);
     }
  }

  digitsTree->Fill();
}

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

  TClonesArray* digitsArray = NULL;
  TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
  digitBranch->SetAddress(&digitsArray);

  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]   = 0.0;
       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 = digitsArray->GetEntriesFast();
    
    for (Int_t d=0; d<nDigits; d++) {    
        AliVZEROdigit* digit = (AliVZEROdigit*)digitsArray->At(d);      
        Int_t  pmNumber      = digit->PMNumber(); 
        // Pedestal retrieval and suppression: 
        Float_t  pedestal      = fCalibData->GetPedestal(d);
        adc[pmNumber]   =  digit->ADC() - pedestal; 
        time[pmNumber]  =  digit->Time();
	width[pmNumber] =  digit->Width();
	BBFlag[pmNumber]=  digit->BBFlag();
	BGFlag[pmNumber]=  digit->BGFlag();
        // printf("PM = %d,  MIP per ADC channel = %f \n",pmNumber, fCalibData->GetMIPperADC(pmNumber));
		//AliInfo(Form("PM = %d,  ADC = %f TDC %f",pmNumber, digit->ADC(),digit->Time()));
        // cut of ADC at 1MIP/2 
	if(fCollisionMode >0) { 
	   Float_t MIP = 2.0;  
           if (adc[pmNumber] > (MIP/2.) ) mult[pmNumber] += adc[pmNumber]*(1.0/MIP) ;
	   }
           else{    
           if (adc[pmNumber] > (1.0/fCalibData->GetMIPperADC(pmNumber) /2.) ) 
	       mult[pmNumber] += adc[pmNumber]*fCalibData->GetMIPperADC(pmNumber);
        } 	    
    } // end of loop over digits
  } // end of loop over events in digits tree
         
  fESDVZERO->SetMultiplicity(mult);
  fESDVZERO->SetADC(adc);
  fESDVZERO->SetTime(time);
  fESDVZERO->SetWidth(width);
  fESDVZERO->SetBBFlag(BBFlag);
  fESDVZERO->SetBGFlag(BGFlag);

  // now get the trigger mask

  AliVZEROTriggerMask *TriggerMask = new AliVZEROTriggerMask();
  TriggerMask->SetAdcThreshold(10.0/2.0);
  TriggerMask->SetTimeWindowWidthBBA(50);
  TriggerMask->SetTimeWindowWidthBGA(20);
  TriggerMask->SetTimeWindowWidthBBC(50);
  TriggerMask->SetTimeWindowWidthBGC(20);
  TriggerMask->FillMasks(digitsTree,digitsArray);

  fESDVZERO->SetBBtriggerV0A(TriggerMask->GetBBtriggerV0A());
  fESDVZERO->SetBGtriggerV0A(TriggerMask->GetBGtriggerV0A());
  fESDVZERO->SetBBtriggerV0C(TriggerMask->GetBBtriggerV0C());
  fESDVZERO->SetBGtriggerV0C(TriggerMask->GetBGtriggerV0C());
  
  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);
    }
  }
}

//_____________________________________________________________________________
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()
{
// Retrieves the collision mode from GRP data

// Initialization of the GRP entry 
  
   Int_t run = AliCDBManager::Instance()->GetRun();
  
//   printf("\n ++++++ Run Number retrieved as %d \n",run);
  
   AliCDBEntry*  entry = AliCDBManager::Instance()->Get("GRP/GRP/Data",run);
   AliGRPObject* grpData = 0x0;
   
  if(entry){
    TMap* m = dynamic_cast<TMap*>(entry->GetObject());  // old GRP entry
    if(m){
       m->Print();
       grpData = new AliGRPObject();
       grpData->ReadValuesFromMap(m);
    }
    else{
       grpData = dynamic_cast<AliGRPObject*>(entry->GetObject());  // new GRP entry
       entry->SetOwner(0);
    }
    AliCDBManager::Instance()->UnloadFromCache("GRP/GRP/Data");
  }

   if(!grpData) { AliError("No GRP entry found in OCDB!");
                  return; }

// Retrieval of simulated collision mode 

  TString beamType = grpData->GetBeamType();
  if(beamType==AliGRPObject::GetInvalidString()){
     AliError("GRP/GRP/Data entry:  missing value for the beam type !");
     AliError("\t VZERO cannot retrieve beam type\n");
     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 = grpData->GetBeamEnergy();
  if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
     AliError("GRP/GRP/Data entry:  missing value for the beam energy ! Using 0");
     fBeamEnergy = 0.;
  }
  
//    printf("\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");

//   if(!entry){
//     AliWarning("Load of calibration data from default storage failed!");
//     AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
//     Int_t runNumber = man->GetRun();
//     entry = man->GetStorage("local://$ALICE_ROOT/OCDB")
//       ->Get("VZERO/Calib/Data",runNumber);
// 	
//   }

  // Retrieval of data in directory VZERO/Calib/Data:

  AliVZEROCalibData *calibdata = 0;

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

  return calibdata;
}
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
35b120ff	24	#include "AliRunLoader.h"
2eb38194	25	#include "AliRawReader.h"
fe0adf2a	26	#include "AliGRPObject.h"
	27	#include "AliCDBManager.h"
	28	#include "AliCDBStorage.h"
	29	#include "AliCDBEntry.h"
b0d2c2d3	30	#include "AliVZEROReconstructor.h"
2eb38194	31	#include "AliVZERORawStream.h"
b14e6eb4	32	#include "AliESDEvent.h"
a055ee24	33	#include "AliVZEROTriggerMask.h"
b090e6a3	34	#include "AliESDfriend.h"
b090e6a3	35	#include "AliESDVZEROfriend.h"
fad64858	36	#include "AliVZEROdigit.h"
b0d2c2d3	37
b0d2c2d3	38	ClassImp(AliVZEROReconstructor)
b0d2c2d3	39
ce7090f5	40	//_____________________________________________________________________________
cb2228e6	41	AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
fe0adf2a	42	fESDVZERO(0x0),
	43	fESD(0x0),
	44	fESDVZEROfriend(0x0),
	45	fCalibData(GetCalibData()),
	46	fCollisionMode(0),
	47	fBeamEnergy(0.)
ce7090f5	48	{
ce7090f5	49	// Default constructor
ce7090f5	50	// Get calibration data
ce7090f5	51
35b120ff	52	// fCalibData = GetCalibData();
44b6212f	53
ce7090f5	54	}
	55
	56
	57	//_____________________________________________________________________________
	58	AliVZEROReconstructor& AliVZEROReconstructor::operator =
	59	(const AliVZEROReconstructor& /reconstructor/)
	60	{
	61	// assignment operator
	62
	63	Fatal("operator =", "assignment operator not implemented");
	64	return *this;
	65	}
	66
	67	//_____________________________________________________________________________
	68	AliVZEROReconstructor::~AliVZEROReconstructor()
	69	{
	70	// destructor
44b6212f	71
b090e6a3	72	delete fESDVZERO;
b090e6a3	73	delete fESDVZEROfriend;
35b120ff	74	}
	75
	76	//_____________________________________________________________________________
d76c31f4	77	void AliVZEROReconstructor::Init()
35b120ff	78	{
ef314913	79	// initializer
ce7090f5	80
35b120ff	81	fESDVZERO = new AliESDVZERO;
b090e6a3	82	fESDVZEROfriend = new AliESDVZEROfriend;
fe0adf2a	83
fe0adf2a	84	GetCollisionMode(); // fCollisionMode =1 for Pb-Pb simulated data
35b120ff	85	}
	86
	87	//______________________________________________________________________
2e0ee64a	88	void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
35b120ff	89	{
44b6212f	90	// converts RAW to digits - pedestal is subtracted
ef314913	91
2e0ee64a	92	if (!digitsTree) {
	93	AliError("No digits tree!");
	94	return;
	95	}
35b120ff	96
2e0ee64a	97	TClonesArray* digitsArray = new TClonesArray("AliVZEROdigit");
	98	digitsTree->Branch("VZERODigit", &digitsArray);
	99
b090e6a3	100	fESDVZEROfriend->Reset();
b090e6a3	101
2e0ee64a	102	rawReader->Reset();
2e0ee64a	103	AliVZERORawStream rawStream(rawReader);
9d62c464	104	if (rawStream.Next()) {
db0db003	105	Float_t ADC_max[64], adc[64];
db0db003	106	Bool_t BBFlag[64], BGFlag[64], integrator[64];
6c115a32	107	Float_t time[64], width[64];
9d62c464	108	for(Int_t i=0; i<64; i++) {
44b6212f	109	// Search for the maximum charge in the train of 21 LHC clocks
9d62c464	110	// regardless of the integrator which has been operated:
db0db003	111	ADC_max[i] = 0.0;
d0502ab2	112	Int_t imax = 0;
9d62c464	113	for(Int_t iClock=0; iClock<21; iClock++){
db0db003	114	if(rawStream.GetPedestal(i,iClock) > ADC_max[i])
db0db003	115	{ADC_max[i]= rawStream.GetPedestal(i,iClock);
d0502ab2	116	imax = iClock;}
9d62c464	117	}
9d62c464	118	// Convert i (FEE channel numbering) to j (aliroot channel numbering)
db0db003	119	Int_t j = rawStream.GetOfflineChannel(i);
	120	adc[j] = ADC_max[i];
	121	time[j] = rawStream.GetTime(i);
	122	width[j] = rawStream.GetWidth(i);
	123	BBFlag[j] = rawStream.GetBBFlag(i,imax);
	124	BGFlag[j] = rawStream.GetBGFlag(i,imax);
fad64858	125	integrator[j] = rawStream.GetIntegratorFlag(i,imax);
b090e6a3	126
	127	// Filling the esd friend object
	128	fESDVZEROfriend->SetBBScalers(j,rawStream.GetBBScalers(i));
	129	fESDVZEROfriend->SetBGScalers(j,rawStream.GetBGScalers(i));
	130	for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++) {
db0db003	131	fESDVZEROfriend->SetChargeMB(j,iBunch,rawStream.GetChargeMB(i,iBunch));
	132	fESDVZEROfriend->SetIntMBFlag(j,iBunch,rawStream.GetIntMBFlag(i,iBunch));
	133	fESDVZEROfriend->SetBBMBFlag(j,iBunch,rawStream.GetBBMBFlag(i,iBunch));
	134	fESDVZEROfriend->SetBGMBFlag(j,iBunch,rawStream.GetBGMBFlag(i,iBunch));
b090e6a3	135	}
b090e6a3	136	for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
db0db003	137	fESDVZEROfriend->SetPedestal(j,iEv,rawStream.GetPedestal(i,iEv));
	138	fESDVZEROfriend->SetIntegratorFlag(j,iEv,rawStream.GetIntegratorFlag(i,iEv));
	139	fESDVZEROfriend->SetBBFlag(j,iEv,rawStream.GetBBFlag(i,iEv));
	140	fESDVZEROfriend->SetBGFlag(j,iEv,rawStream.GetBGFlag(i,iEv));
b090e6a3	141	}
	142	fESDVZEROfriend->SetTime(j,rawStream.GetTime(i));
	143	fESDVZEROfriend->SetWidth(j,rawStream.GetWidth(i));
9d62c464	144	}
b090e6a3	145
	146	// Filling the esd friend object
	147	fESDVZEROfriend->SetTriggerInputs(rawStream.GetTriggerInputs());
	148	fESDVZEROfriend->SetTriggerInputsMask(rawStream.GetTriggerInputsMask());
	149
	150	for(Int_t iScaler = 0; iScaler < AliESDVZEROfriend::kNScalers; iScaler++)
db0db003	151	fESDVZEROfriend->SetTriggerScalers(iScaler,rawStream.GetTriggerScalers(iScaler));
b090e6a3	152
db0db003	153	for(Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++)
db0db003	154	fESDVZEROfriend->SetBunchNumbersMB(iBunch,rawStream.GetBunchNumbersMB(iBunch));
b090e6a3	155
b090e6a3	156
9d62c464	157	// Channels(aliroot numbering) will be ordered in the tree
	158	for(Int_t iChannel = 0; iChannel < 64; iChannel++) {
	159	new ((*digitsArray)[digitsArray->GetEntriesFast()])
d0502ab2	160	AliVZEROdigit(iChannel, adc[iChannel], time[iChannel],
fad64858	161	width[iChannel], BBFlag[iChannel], BGFlag[iChannel],integrator[iChannel]);
9d62c464	162	}
2e0ee64a	163	}
	164
	165	digitsTree->Fill();
	166	}
	167
	168	//______________________________________________________________________
	169	void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /clustersTree/,
b14e6eb4	170	AliESDEvent* esd) const
2e0ee64a	171	{
ef314913	172	// fills multiplicities to the ESD
fe0adf2a	173
2e0ee64a	174	if (!digitsTree) {
fe0adf2a	175	AliError("No digits tree!");
fe0adf2a	176	return;
2e0ee64a	177	}
a055ee24	178
2e0ee64a	179	TClonesArray* digitsArray = NULL;
	180	TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
	181	digitBranch->SetAddress(&digitsArray);
35b120ff	182
44b6212f	183	Float_t mult[64];
db0db003	184	Float_t adc[64];
	185	Float_t time[64];
	186	Float_t width[64];
d0502ab2	187	Bool_t BBFlag[64];
	188	Bool_t BGFlag[64];
	189
35b120ff	190	for (Int_t i=0; i<64; i++){
db0db003	191	adc[i] = 0.0;
d0502ab2	192	mult[i] = 0.0;
db0db003	193	time[i] = 0.0;
db0db003	194	width[i] = 0.0;
d0502ab2	195	BBFlag[i] = kFALSE;
d0502ab2	196	BGFlag[i] = kFALSE;
a055ee24	197	}
35b120ff	198
a055ee24	199	// loop over VZERO entries to get multiplicity
2e0ee64a	200	Int_t nEntries = (Int_t)digitsTree->GetEntries();
35b120ff	201	for (Int_t e=0; e<nEntries; e++) {
2e0ee64a	202	digitsTree->GetEvent(e);
35b120ff	203
2e0ee64a	204	Int_t nDigits = digitsArray->GetEntriesFast();
35b120ff	205
35b120ff	206	for (Int_t d=0; d<nDigits; d++) {
63627899	207	AliVZEROdigit* digit = (AliVZEROdigit*)digitsArray->At(d);
	208	Int_t pmNumber = digit->PMNumber();
	209	// Pedestal retrieval and suppression:
db0db003	210	Float_t pedestal = fCalibData->GetPedestal(d);
	211	adc[pmNumber] = digit->ADC() - pedestal;
	212	time[pmNumber] = digit->Time();
	213	width[pmNumber] = digit->Width();
	214	BBFlag[pmNumber]= digit->BBFlag();
	215	BGFlag[pmNumber]= digit->BGFlag();
23c8ec8e	216	// printf("PM = %d, MIP per ADC channel = %f \n",pmNumber, fCalibData->GetMIPperADC(pmNumber));
db0db003	217	//AliInfo(Form("PM = %d, ADC = %f TDC %f",pmNumber, digit->ADC(),digit->Time()));
44b6212f	218	// cut of ADC at 1MIP/2
fe0adf2a	219	if(fCollisionMode >0) {
fe0adf2a	220	Float_t MIP = 2.0;
db0db003	221	if (adc[pmNumber] > (MIP/2.) ) mult[pmNumber] += adc[pmNumber]*(1.0/MIP) ;
fe0adf2a	222	}
fe0adf2a	223	else{
db0db003	224	if (adc[pmNumber] > (1.0/fCalibData->GetMIPperADC(pmNumber) /2.) )
db0db003	225	mult[pmNumber] += adc[pmNumber]*fCalibData->GetMIPperADC(pmNumber);
fe0adf2a	226	}
35b120ff	227	} // end of loop over digits
35b120ff	228	} // end of loop over events in digits tree
6c6d6114	229
6c6d6114	230	fESDVZERO->SetMultiplicity(mult);
28fdf12c	231	fESDVZERO->SetADC(adc);
28fdf12c	232	fESDVZERO->SetTime(time);
d0502ab2	233	fESDVZERO->SetWidth(width);
	234	fESDVZERO->SetBBFlag(BBFlag);
	235	fESDVZERO->SetBGFlag(BGFlag);
a055ee24	236
	237	// now get the trigger mask
	238
	239	AliVZEROTriggerMask *TriggerMask = new AliVZEROTriggerMask();
fe0adf2a	240	TriggerMask->SetAdcThreshold(10.0/2.0);
a055ee24	241	TriggerMask->SetTimeWindowWidthBBA(50);
	242	TriggerMask->SetTimeWindowWidthBGA(20);
	243	TriggerMask->SetTimeWindowWidthBBC(50);
	244	TriggerMask->SetTimeWindowWidthBGC(20);
	245	TriggerMask->FillMasks(digitsTree,digitsArray);
	246
	247	fESDVZERO->SetBBtriggerV0A(TriggerMask->GetBBtriggerV0A());
	248	fESDVZERO->SetBGtriggerV0A(TriggerMask->GetBGtriggerV0A());
	249	fESDVZERO->SetBBtriggerV0C(TriggerMask->GetBBtriggerV0C());
	250	fESDVZERO->SetBGtriggerV0C(TriggerMask->GetBGtriggerV0C());
35b120ff	251
2e0ee64a	252	if (esd) {
44b6212f	253	AliDebug(1, Form("Writing VZERO data to ESD tree"));
44b6212f	254	esd->SetVZEROData(fESDVZERO);
2e0ee64a	255	}
b090e6a3	256
b090e6a3	257	if (esd) {
fe0adf2a	258	AliESDfriend fr = (AliESDfriend)esd->FindListObject("AliESDfriend");
	259	if (fr) {
	260	AliDebug(1, Form("Writing VZERO friend data to ESD tree"));
	261	fr->SetVZEROfriend(fESDVZEROfriend);
b090e6a3	262	}
b090e6a3	263	}
35b120ff	264	}
35b120ff	265
ce7090f5	266	//_____________________________________________________________________________
	267	AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
	268	{
ef314913	269	// Sets the storage
ef314913	270
ce7090f5	271	Bool_t deleteManager = kFALSE;
	272
	273	AliCDBManager *manager = AliCDBManager::Instance();
	274	AliCDBStorage *defstorage = manager->GetDefaultStorage();
	275
	276	if(!defstorage \|\| !(defstorage->Contains("VZERO"))){
	277	AliWarning("No default storage set or default storage doesn't contain VZERO!");
	278	manager->SetDefaultStorage(uri);
	279	deleteManager = kTRUE;
	280	}
	281
	282	AliCDBStorage *storage = manager->GetDefaultStorage();
	283
	284	if(deleteManager){
44b6212f	285	AliCDBManager::Instance()->UnsetDefaultStorage();
44b6212f	286	defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
ce7090f5	287	}
	288
	289	return storage;
	290	}
	291
fe0adf2a	292	//____________________________________________________________________________
	293	void AliVZEROReconstructor::GetCollisionMode()
	294	{
	295	// Retrieves the collision mode from GRP data
	296
	297	// Initialization of the GRP entry
	298
	299	Int_t run = AliCDBManager::Instance()->GetRun();
	300
	301	// printf("\n ++++++ Run Number retrieved as %d \n",run);
	302
	303	AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data",run);
	304	AliGRPObject* grpData = 0x0;
	305
	306	if(entry){
	307	TMap* m = dynamic_cast<TMap*>(entry->GetObject()); // old GRP entry
	308	if(m){
	309	m->Print();
	310	grpData = new AliGRPObject();
	311	grpData->ReadValuesFromMap(m);
	312	}
	313	else{
	314	grpData = dynamic_cast<AliGRPObject*>(entry->GetObject()); // new GRP entry
	315	entry->SetOwner(0);
	316	}
	317	AliCDBManager::Instance()->UnloadFromCache("GRP/GRP/Data");
	318	}
	319
	320	if(!grpData) { AliError("No GRP entry found in OCDB!");
	321	return; }
	322
	323	// Retrieval of simulated collision mode
	324
	325	TString beamType = grpData->GetBeamType();
	326	if(beamType==AliGRPObject::GetInvalidString()){
	327	AliError("GRP/GRP/Data entry: missing value for the beam type !");
	328	AliError("\t VZERO cannot retrieve beam type\n");
	329	return;
	330	}
	331
	332	if( (beamType.CompareTo("P-P") ==0) \|\| (beamType.CompareTo("p-p") ==0) ){
	333	fCollisionMode=0;
	334	}
	335	else if( (beamType.CompareTo("Pb-Pb") ==0) \|\| (beamType.CompareTo("A-A") ==0) ){
	336	fCollisionMode=1;
	337	}
	338
	339	fBeamEnergy = grpData->GetBeamEnergy();
	340	if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
	341	AliError("GRP/GRP/Data entry: missing value for the beam energy ! Using 0");
	342	fBeamEnergy = 0.;
	343	}
	344
	345	// printf("\n ++++++ Beam type and collision mode retrieved as %s %d @ %1.3f GeV ++++++\n\n",beamType.Data(), fCollisionMode, fBeamEnergy);
	346
	347	}
	348
ce7090f5	349	//_____________________________________________________________________________
	350	AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
	351	{
ef314913	352	// Gets calibration object for VZERO set
ce7090f5	353
c0b82b5a	354	AliCDBManager *man = AliCDBManager::Instance();
ce7090f5	355
c0b82b5a	356	AliCDBEntry *entry=0;
	357
	358	entry = man->Get("VZERO/Calib/Data");
	359
94a600a1	360	// if(!entry){
	361	// AliWarning("Load of calibration data from default storage failed!");
	362	// AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
	363	// Int_t runNumber = man->GetRun();
162637e4	364	// entry = man->GetStorage("local://$ALICE_ROOT/OCDB")
94a600a1	365	// ->Get("VZERO/Calib/Data",runNumber);
	366	//
	367	// }
c0b82b5a	368
	369	// Retrieval of data in directory VZERO/Calib/Data:
	370
c0b82b5a	371	AliVZEROCalibData *calibdata = 0;
	372
	373	if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
94a600a1	374	if (!calibdata) AliFatal("No calibration data from calibration database !");
ce7090f5	375
	376	return calibdata;
	377	}
44b6212f	378