[u/mrichter/AliRoot.git] / PHOS / AliPHOSSDigitizer.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.                  *
 **************************************************************************/

/* $Id$ */

//_________________________________________________________________________
// This is a TTask that makes SDigits out of Hits
// A Summable Digits is the sum of all hits originating 
// from one primary in one active cell
// A threshold for assignment of the primary to SDigit is applied 
// SDigits are written to TreeS, branch "PHOS"
// AliPHOSSDigitizer with all current parameters is written 
// to TreeS branch "AliPHOSSDigitizer".
// Both branches, "PHOS" and "AliPHOSSDigitizer", are written to the same
// file, and therefore, changing branch file name one can produce several
// versions of SDigitization from the same hits.
// 
//
//*-- Author :  Dmitri Peressounko (SUBATECH & KI) 
//////////////////////////////////////////////////////////////////////////////

// --- ROOT system ---
#include "TFile.h"
#include "TTask.h"
#include "TTree.h"
#include "TSystem.h"
#include "TROOT.h"
#include "TFolder.h"
#include "TBenchmark.h"
// --- Standard library ---
#include <iomanip.h>

// --- AliRoot header files ---
#include "AliRun.h"
#include "AliPHOSDigit.h"
#include "AliPHOSHit.h"
#include "AliPHOSSDigitizer.h"


ClassImp(AliPHOSSDigitizer)

           
//____________________________________________________________________________ 
  AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("AliPHOSSDigitizer","") 
{
  // ctor
  fA = 0;
  fB = 10000000. ;
  fPrimThreshold = 0.01 ;
  fNevents = 0 ;     
  fSDigits = 0 ;
  fHits = 0 ;
  fIsInitialized = kFALSE ;

}

//____________________________________________________________________________ 
AliPHOSSDigitizer::AliPHOSSDigitizer(const char* headerFile, const char *sDigitsTitle):TTask("AliPHOSSDigitizer","")
{
  // ctor
  fA = 0;
  fB = 10000000.;
  fPrimThreshold = 0.01 ;
  fNevents = 0 ;      
  fSDigitsTitle = sDigitsTitle ;
  fHeadersFile = headerFile ;
  fSDigits = new TClonesArray("AliPHOSDigit",1000);
  fHits    = new TClonesArray("AliPHOSHit",1000);

  TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ;
  
  //File was not opened yet
  if(file == 0){
    file = new TFile(fHeadersFile.Data(),"update") ;
    gAlice = (AliRun *) file->Get("gAlice") ;
  }
  
  //add Task to //root/Tasks folder
  TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; 
  roottasks->Add(this) ; 
  
  fIsInitialized = kTRUE ;
}

//____________________________________________________________________________ 
AliPHOSSDigitizer::~AliPHOSSDigitizer()
{
  // dtor
  if(fSDigits)
    delete fSDigits ;
  if(fHits)
    delete fHits ;
}
//____________________________________________________________________________ 
void AliPHOSSDigitizer::Init(){
  //Initialization can not be done in the default constructor

  if(!fIsInitialized){

    if(fHeadersFile.IsNull())
      fHeadersFile="galice.root" ;

    TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ;
    
    //if file was not opened yet, read gAlice
    if(file == 0){
      file = new TFile(fHeadersFile.Data(),"update") ;
      gAlice = (AliRun *) file->Get("gAlice") ;
    }
    
    fHits    = new TClonesArray("AliPHOSHit",1000);
    fSDigits = new TClonesArray("AliPHOSDigit",1000);
    
    // add Task to //root/Tasks folder
    TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; 
    roottasks->Add(this) ; 
    
    fIsInitialized = kTRUE ;
  }
}
//____________________________________________________________________________
void AliPHOSSDigitizer::Exec(Option_t *option) { 
  //Collects all hits in the same active volume into digit
  
  if(!fIsInitialized)
    Init() ;

  if(strstr(option,"tim"))
    gBenchmark->Start("PHOSSDigitizer");
  
  fNevents = (Int_t) gAlice->TreeE()->GetEntries() ; 
  
  Int_t ievent ;
  for(ievent = 0; ievent < fNevents; ievent++){
    gAlice->GetEvent(ievent) ;
    gAlice->SetEvent(ievent) ;
    
    if(gAlice->TreeH()==0){
      cout << "AliPHOSSDigitizer: There is no Hit Tree" << endl;
      return ;
    }
    
    //set address of the hits 
    TBranch * branch = gAlice->TreeH()->GetBranch("PHOS");
    if (branch) 
      branch->SetAddress(&fHits);
    else{
      cout << "ERROR in AliPHOSSDigitizer: "<< endl ;
      cout << "      no branch PHOS in TreeH"<< endl ;
      cout << "      do nothing " << endl ;
      return ;
    }
    
    fSDigits->Clear();
    Int_t nSdigits = 0 ;
    
    
    //Now made SDigits from hits, for PHOS it is the same, so just copy    
    Int_t itrack ;
    for (itrack=0; itrack<gAlice->GetNtrack(); itrack++){
      
      //=========== Get the Hits Tree for the Primary track itrack
      gAlice->ResetHits();    
      gAlice->TreeH()->GetEvent(itrack);
      
      Int_t i;
      for ( i = 0 ; i < fHits->GetEntries() ; i++ ) {
	AliPHOSHit * hit = (AliPHOSHit*)fHits->At(i) ;
	AliPHOSDigit * newdigit ;

	// Assign primary number only if contribution is significant
	if( hit->GetEnergy() > fPrimThreshold)
	  newdigit = new AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
	else
	  newdigit = new AliPHOSDigit( -1               , hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
	
	new((*fSDigits)[nSdigits]) AliPHOSDigit(* newdigit) ;
	nSdigits++ ;  
	
	delete newdigit ;    
      } 
      
    } // loop over tracks
    
    fSDigits->Sort() ;
    
    nSdigits = fSDigits->GetEntriesFast() ;
    fSDigits->Expand(nSdigits) ;
    
    Int_t i ;
    for (i = 0 ; i < nSdigits ; i++) { 
      AliPHOSDigit * digit = (AliPHOSDigit *) fSDigits->At(i) ; 
      digit->SetIndexInList(i) ;     
    }

    if(gAlice->TreeS() == 0)
      gAlice->MakeTree("S") ;
    
    //check, if this branch already exits?
    TBranch * sdigitsBranch = 0;
    TBranch * sdigitizerBranch = 0;
    
    TObjArray * branches = gAlice->TreeS()->GetListOfBranches() ;
    Int_t ibranch;
    Bool_t phosNotFound = kTRUE ;
    Bool_t sdigitizerNotFound = kTRUE ;
    
    for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
      
      if(phosNotFound){
	sdigitsBranch=(TBranch *) branches->At(ibranch) ;
	if( (strcmp("PHOS",sdigitsBranch->GetName())==0 ) &&
	    (fSDigitsTitle.CompareTo(sdigitsBranch->GetTitle()) == 0) )
	  phosNotFound = kFALSE ;
      }
      if(sdigitizerNotFound){
	sdigitizerBranch = (TBranch *) branches->At(ibranch) ;
	if( (strcmp(sdigitizerBranch->GetName(),"AliPHOSSDigitizer") == 0)&&
	    (fSDigitsTitle.CompareTo(sdigitizerBranch->GetTitle()) == 0) )
	  sdigitizerNotFound = kFALSE ;
      }
    }

    if(!(sdigitizerNotFound && phosNotFound)){
      cout << "AliPHOSSdigitizer error:" << endl ;
      cout << "Can not overwrite existing branches: do not write" << endl ;
      return ;
    }
    
    //Make (if necessary) branches    
    char * file =0;
    if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
      file = new char[strlen(gAlice->GetBaseFile())+20] ;
      sprintf(file,"%s/PHOS.SDigits.root",gAlice->GetBaseFile()) ;
    }
    
    TDirectory *cwd = gDirectory;
    
    //First list of sdigits
    Int_t bufferSize = 32000 ;    
    sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&fSDigits,bufferSize);
    sdigitsBranch->SetTitle(fSDigitsTitle.Data());
    if (file) {
      sdigitsBranch->SetFile(file);
      TIter next( sdigitsBranch->GetListOfBranches());
      while ((sdigitsBranch=(TBranch*)next())) {
	sdigitsBranch->SetFile(file);
      }   
      cwd->cd();
    } 
      
    //second - SDigitizer
    Int_t splitlevel = 0 ;
    AliPHOSSDigitizer * sd = this ;
    sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
					       &sd,bufferSize,splitlevel); 
    sdigitizerBranch->SetTitle(fSDigitsTitle.Data());
    if (file) {
      sdigitizerBranch->SetFile(file);
      TIter next( sdigitizerBranch->GetListOfBranches());
      while ((sdigitizerBranch=(TBranch*)next())) {
	sdigitizerBranch->SetFile(file);
      }   
      cwd->cd();
      delete file;
    }

    gAlice->TreeS()->Fill() ;
    gAlice->TreeS()->Write(0,TObject::kOverwrite) ;
    
    if(strstr(option,"deb"))
      PrintSDigits(option) ;
    
  }
  
  if(strstr(option,"tim")){
    gBenchmark->Stop("PHOSSDigitizer");
    cout << "AliPHOSSDigitizer:" << endl ;
    cout << "   took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing " 
	 <<  gBenchmark->GetCpuTime("PHOSSDigitizer")/fNevents << " seconds per event " << endl ;
    cout << endl ;
  }
  
  
}
//__________________________________________________________________
void AliPHOSSDigitizer::SetSDigitsBranch(const char * title ){
  //Seting title to branch SDigits 
  if(!fSDigitsTitle.IsNull())
    cout << "AliPHOSSdigitizer: changing SDigits file from " <<fSDigitsTitle.Data() << " to " << title << endl ;
  fSDigitsTitle=title ;
}
//__________________________________________________________________
void AliPHOSSDigitizer::Print(Option_t* option)const{
  cout << "------------------- "<< GetName() << " -------------" << endl ;
  cout << "   Writing SDigitis to branch with title  " << fSDigitsTitle.Data() << endl ;
  cout << "   with digitization parameters  A = " << fA << endl ;
  cout << "                                 B = " << fB << endl ;
  cout << "   Threshold for Primary assignment= " << fPrimThreshold << endl ; 
  cout << "---------------------------------------------------"<<endl ;
  
}
//__________________________________________________________________
Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const{
  if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
    return kTRUE ;
  else
    return kFALSE ;
}
//__________________________________________________________________
void AliPHOSSDigitizer::PrintSDigits(Option_t * option){
  //Prints list of digits produced at the current pass of AliPHOSDigitizer
  
  cout << "AliPHOSSDigitizer: " << endl ;
  cout << "       Number of entries in SDigits list  " << fSDigits->GetEntriesFast() << endl ;
  cout << endl ;
  
  if(strstr(option,"all")){// print all digits
    
    //loop over digits
    AliPHOSDigit * digit;
    cout << "SDigit Id " << " Amplitude " <<  " Index "  <<  " Nprim " << " Primaries list " <<  endl;    
    Int_t index ;
    for (index = 0 ; index < fSDigits->GetEntries() ; index++) {
      digit = (AliPHOSDigit * )  fSDigits->At(index) ;
      cout << setw(8)  <<  digit->GetId() << " "  << 	setw(3)  <<  digit->GetAmp() <<   "  "  
	   << setw(6)  <<  digit->GetIndexInList() << "  "   
	   << setw(5)  <<  digit->GetNprimary() <<"  ";
      
      Int_t iprimary;
      for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
	cout << setw(5)  <<  digit->GetPrimary(iprimary+1) << "  ";
      cout << endl;  	 
    }
    
  }
}
Commit	Line	Data
990119d6	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	//_________________________________________________________________________
7acf6008	19	// This is a TTask that makes SDigits out of Hits
	20	// A Summable Digits is the sum of all hits originating
	21	// from one primary in one active cell
	22	// A threshold for assignment of the primary to SDigit is applied
	23	// SDigits are written to TreeS, branch "PHOS"
	24	// AliPHOSSDigitizer with all current parameters is written
	25	// to TreeS branch "AliPHOSSDigitizer".
	26	// Both branches, "PHOS" and "AliPHOSSDigitizer", are written to the same
	27	// file, and therefore, changing branch file name one can produce several
	28	// versions of SDigitization from the same hits.
	29	//
990119d6	30	//
	31	//*-- Author : Dmitri Peressounko (SUBATECH & KI)
	32	//////////////////////////////////////////////////////////////////////////////
	33
	34	// --- ROOT system ---
7acf6008	35	#include "TFile.h"
990119d6	36	#include "TTask.h"
	37	#include "TTree.h"
	38	#include "TSystem.h"
7acf6008	39	#include "TROOT.h"
	40	#include "TFolder.h"
	41	#include "TBenchmark.h"
990119d6	42	// --- Standard library ---
7acf6008	43	#include <iomanip.h>
990119d6	44
990119d6	45	// --- AliRoot header files ---
7acf6008	46	#include "AliRun.h"
990119d6	47	#include "AliPHOSDigit.h"
990119d6	48	#include "AliPHOSHit.h"
990119d6	49	#include "AliPHOSSDigitizer.h"
990119d6	50
990119d6	51
	52	ClassImp(AliPHOSSDigitizer)
	53
	54
	55	//____________________________________________________________________________
	56	AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("AliPHOSSDigitizer","")
	57	{
	58	// ctor
	59	fA = 0;
	60	fB = 10000000. ;
	61	fPrimThreshold = 0.01 ;
7acf6008	62	fNevents = 0 ;
	63	fSDigits = 0 ;
	64	fHits = 0 ;
	65	fIsInitialized = kFALSE ;
990119d6	66
990119d6	67	}
7acf6008	68
990119d6	69	//____________________________________________________________________________
7acf6008	70	AliPHOSSDigitizer::AliPHOSSDigitizer(const char* headerFile, const char *sDigitsTitle):TTask("AliPHOSSDigitizer","")
990119d6	71	{
	72	// ctor
	73	fA = 0;
	74	fB = 10000000.;
	75	fPrimThreshold = 0.01 ;
7acf6008	76	fNevents = 0 ;
	77	fSDigitsTitle = sDigitsTitle ;
	78	fHeadersFile = headerFile ;
	79	fSDigits = new TClonesArray("AliPHOSDigit",1000);
	80	fHits = new TClonesArray("AliPHOSHit",1000);
	81
	82	TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ;
	83
	84	//File was not opened yet
	85	if(file == 0){
	86	file = new TFile(fHeadersFile.Data(),"update") ;
	87	gAlice = (AliRun *) file->Get("gAlice") ;
	88	}
	89
990119d6	90	//add Task to //root/Tasks folder
	91	TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ;
	92	roottasks->Add(this) ;
7acf6008	93
7acf6008	94	fIsInitialized = kTRUE ;
990119d6	95	}
	96
	97	//____________________________________________________________________________
7acf6008	98	AliPHOSSDigitizer::~AliPHOSSDigitizer()
990119d6	99	{
990119d6	100	// dtor
7acf6008	101	if(fSDigits)
	102	delete fSDigits ;
	103	if(fHits)
	104	delete fHits ;
990119d6	105	}
7acf6008	106	//____________________________________________________________________________
	107	void AliPHOSSDigitizer::Init(){
	108	//Initialization can not be done in the default constructor
	109
	110	if(!fIsInitialized){
990119d6	111
7acf6008	112	if(fHeadersFile.IsNull())
7acf6008	113	fHeadersFile="galice.root" ;
990119d6	114
7acf6008	115	TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ;
	116
	117	//if file was not opened yet, read gAlice
	118	if(file == 0){
	119	file = new TFile(fHeadersFile.Data(),"update") ;
	120	gAlice = (AliRun *) file->Get("gAlice") ;
	121	}
	122
	123	fHits = new TClonesArray("AliPHOSHit",1000);
	124	fSDigits = new TClonesArray("AliPHOSDigit",1000);
	125
	126	// add Task to //root/Tasks folder
	127	TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ;
	128	roottasks->Add(this) ;
	129
	130	fIsInitialized = kTRUE ;
	131	}
	132	}
990119d6	133	//____________________________________________________________________________
	134	void AliPHOSSDigitizer::Exec(Option_t *option) {
	135	//Collects all hits in the same active volume into digit
990119d6	136
7acf6008	137	if(!fIsInitialized)
7acf6008	138	Init() ;
990119d6	139
7acf6008	140	if(strstr(option,"tim"))
7acf6008	141	gBenchmark->Start("PHOSSDigitizer");
990119d6	142
7acf6008	143	fNevents = (Int_t) gAlice->TreeE()->GetEntries() ;
990119d6	144
	145	Int_t ievent ;
	146	for(ievent = 0; ievent < fNevents; ievent++){
	147	gAlice->GetEvent(ievent) ;
	148	gAlice->SetEvent(ievent) ;
	149
	150	if(gAlice->TreeH()==0){
	151	cout << "AliPHOSSDigitizer: There is no Hit Tree" << endl;
	152	return ;
	153	}
	154
7acf6008	155	//set address of the hits
	156	TBranch * branch = gAlice->TreeH()->GetBranch("PHOS");
	157	if (branch)
	158	branch->SetAddress(&fHits);
	159	else{
	160	cout << "ERROR in AliPHOSSDigitizer: "<< endl ;
	161	cout << " no branch PHOS in TreeH"<< endl ;
	162	cout << " do nothing " << endl ;
	163	return ;
	164	}
990119d6	165
7acf6008	166	fSDigits->Clear();
990119d6	167	Int_t nSdigits = 0 ;
990119d6	168
990119d6	169
7acf6008	170	//Now made SDigits from hits, for PHOS it is the same, so just copy
990119d6	171	Int_t itrack ;
	172	for (itrack=0; itrack<gAlice->GetNtrack(); itrack++){
	173
	174	//=========== Get the Hits Tree for the Primary track itrack
	175	gAlice->ResetHits();
	176	gAlice->TreeH()->GetEvent(itrack);
	177
	178	Int_t i;
7acf6008	179	for ( i = 0 ; i < fHits->GetEntries() ; i++ ) {
7acf6008	180	AliPHOSHit * hit = (AliPHOSHit*)fHits->At(i) ;
990119d6	181	AliPHOSDigit * newdigit ;
	182
	183	// Assign primary number only if contribution is significant
	184	if( hit->GetEnergy() > fPrimThreshold)
	185	newdigit = new AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
	186	else
	187	newdigit = new AliPHOSDigit( -1 , hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
	188
7acf6008	189	new((fSDigits)[nSdigits]) AliPHOSDigit( newdigit) ;
990119d6	190	nSdigits++ ;
	191
	192	delete newdigit ;
	193	}
	194
	195	} // loop over tracks
	196
7acf6008	197	fSDigits->Sort() ;
990119d6	198
7acf6008	199	nSdigits = fSDigits->GetEntriesFast() ;
7acf6008	200	fSDigits->Expand(nSdigits) ;
990119d6	201
	202	Int_t i ;
	203	for (i = 0 ; i < nSdigits ; i++) {
7acf6008	204	AliPHOSDigit * digit = (AliPHOSDigit *) fSDigits->At(i) ;
990119d6	205	digit->SetIndexInList(i) ;
990119d6	206	}
7acf6008	207
	208	if(gAlice->TreeS() == 0)
	209	gAlice->MakeTree("S") ;
	210
	211	//check, if this branch already exits?
	212	TBranch * sdigitsBranch = 0;
	213	TBranch * sdigitizerBranch = 0;
	214
	215	TObjArray * branches = gAlice->TreeS()->GetListOfBranches() ;
	216	Int_t ibranch;
	217	Bool_t phosNotFound = kTRUE ;
	218	Bool_t sdigitizerNotFound = kTRUE ;
	219
	220	for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
	221
	222	if(phosNotFound){
	223	sdigitsBranch=(TBranch *) branches->At(ibranch) ;
	224	if( (strcmp("PHOS",sdigitsBranch->GetName())==0 ) &&
	225	(fSDigitsTitle.CompareTo(sdigitsBranch->GetTitle()) == 0) )
	226	phosNotFound = kFALSE ;
	227	}
	228	if(sdigitizerNotFound){
	229	sdigitizerBranch = (TBranch *) branches->At(ibranch) ;
	230	if( (strcmp(sdigitizerBranch->GetName(),"AliPHOSSDigitizer") == 0)&&
	231	(fSDigitsTitle.CompareTo(sdigitizerBranch->GetTitle()) == 0) )
	232	sdigitizerNotFound = kFALSE ;
	233	}
	234	}
	235
	236	if(!(sdigitizerNotFound && phosNotFound)){
	237	cout << "AliPHOSSdigitizer error:" << endl ;
	238	cout << "Can not overwrite existing branches: do not write" << endl ;
	239	return ;
	240	}
990119d6	241
7acf6008	242	//Make (if necessary) branches
	243	char * file =0;
	244	if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
	245	file = new char[strlen(gAlice->GetBaseFile())+20] ;
	246	sprintf(file,"%s/PHOS.SDigits.root",gAlice->GetBaseFile()) ;
	247	}
	248
	249	TDirectory *cwd = gDirectory;
	250
	251	//First list of sdigits
	252	Int_t bufferSize = 32000 ;
	253	sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&fSDigits,bufferSize);
	254	sdigitsBranch->SetTitle(fSDigitsTitle.Data());
	255	if (file) {
	256	sdigitsBranch->SetFile(file);
	257	TIter next( sdigitsBranch->GetListOfBranches());
	258	while ((sdigitsBranch=(TBranch*)next())) {
	259	sdigitsBranch->SetFile(file);
	260	}
	261	cwd->cd();
	262	}
	263
	264	//second - SDigitizer
	265	Int_t splitlevel = 0 ;
	266	AliPHOSSDigitizer * sd = this ;
	267	sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
	268	&sd,bufferSize,splitlevel);
	269	sdigitizerBranch->SetTitle(fSDigitsTitle.Data());
	270	if (file) {
	271	sdigitizerBranch->SetFile(file);
	272	TIter next( sdigitizerBranch->GetListOfBranches());
	273	while ((sdigitizerBranch=(TBranch*)next())) {
	274	sdigitizerBranch->SetFile(file);
	275	}
	276	cwd->cd();
	277	delete file;
	278	}
	279
990119d6	280	gAlice->TreeS()->Fill() ;
990119d6	281	gAlice->TreeS()->Write(0,TObject::kOverwrite) ;
7acf6008	282
	283	if(strstr(option,"deb"))
	284	PrintSDigits(option) ;
	285
990119d6	286	}
7acf6008	287
	288	if(strstr(option,"tim")){
	289	gBenchmark->Stop("PHOSSDigitizer");
	290	cout << "AliPHOSSDigitizer:" << endl ;
	291	cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
	292	<< gBenchmark->GetCpuTime("PHOSSDigitizer")/fNevents << " seconds per event " << endl ;
	293	cout << endl ;
	294	}
	295
	296
990119d6	297	}
990119d6	298	//__________________________________________________________________
7acf6008	299	void AliPHOSSDigitizer::SetSDigitsBranch(const char * title ){
	300	//Seting title to branch SDigits
	301	if(!fSDigitsTitle.IsNull())
	302	cout << "AliPHOSSdigitizer: changing SDigits file from " <<fSDigitsTitle.Data() << " to " << title << endl ;
	303	fSDigitsTitle=title ;
990119d6	304	}
	305	//__________________________________________________________________
	306	void AliPHOSSDigitizer::Print(Option_t* option)const{
	307	cout << "------------------- "<< GetName() << " -------------" << endl ;
7acf6008	308	cout << " Writing SDigitis to branch with title " << fSDigitsTitle.Data() << endl ;
	309	cout << " with digitization parameters A = " << fA << endl ;
	310	cout << " B = " << fB << endl ;
	311	cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
990119d6	312	cout << "---------------------------------------------------"<<endl ;
7acf6008	313
990119d6	314	}
	315	//__________________________________________________________________
	316	Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const{
	317	if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
	318	return kTRUE ;
	319	else
	320	return kFALSE ;
	321	}
7acf6008	322	//__________________________________________________________________
	323	void AliPHOSSDigitizer::PrintSDigits(Option_t * option){
	324	//Prints list of digits produced at the current pass of AliPHOSDigitizer
	325
	326	cout << "AliPHOSSDigitizer: " << endl ;
	327	cout << " Number of entries in SDigits list " << fSDigits->GetEntriesFast() << endl ;
	328	cout << endl ;
	329
	330	if(strstr(option,"all")){// print all digits
	331
	332	//loop over digits
	333	AliPHOSDigit * digit;
	334	cout << "SDigit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl;
	335	Int_t index ;
	336	for (index = 0 ; index < fSDigits->GetEntries() ; index++) {
	337	digit = (AliPHOSDigit * ) fSDigits->At(index) ;
	338	cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " "
	339	<< setw(6) << digit->GetIndexInList() << " "
	340	<< setw(5) << digit->GetNprimary() <<" ";
	341
	342	Int_t iprimary;
	343	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
	344	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
	345	cout << endl;
	346	}
	347
	348	}
	349	}