[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
// The name of the TTask is also the title of the branch that will contain 
// the created SDigits
// The title of the TTAsk is the name of the file that contains the hits from
// which the SDigits are created
// 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 have the same title. If necessary one can produce 
// another set of SDigits with different parameters. Two versions
// can be distunguished using titles of the branches.
// User case:
//  root [0] AliPHOSSDigitizer * s = new AliPHOSSDigitizer("galice.root")
//  Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
//  root [1] s->ExecuteTask()
//             // Makes SDigitis for all events stored in galice.root
//  root [2] s->SetPedestalParameter(0.001)
//             // One can change parameters of digitization
// root [3] s->SetSDigitsBranch("Pedestal 0.001")
//             // and write them into the new branch
// root [4] s->ExecuteTask("deb all tim")
//             // available parameters:
//             deb - print # of produced SDigitis
//             deb all  - print # and list of produced SDigits
//             tim - print benchmarking information
//
//*-- 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 "AliPHOSGetter.h"
#include "AliPHOSHit.h"
#include "AliPHOSSDigitizer.h"


ClassImp(AliPHOSSDigitizer)

           
//____________________________________________________________________________ 
  AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","") 
{
  // ctor
  fA             = 0;
  fB             = 10000000.;
  fPrimThreshold = 0.01 ;
  fSDigitsInRun  = 0 ; 
}

//____________________________________________________________________________ 
AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile)
{
  // ctor
  fA             = 0;
  fB             = 10000000.;
  fPrimThreshold = 0.01 ;
  fSDigitsInRun  = 0 ; 
  Init();
}


//____________________________________________________________________________ 
void AliPHOSSDigitizer::Init()
{
  // Initialization: open root-file, allocate arrays for hits and sdigits,
  // attach task SDigitizer to the list of PHOS tasks
  // 
  // Initialization can not be done in the default constructor
  //============================================================= YS
  //  The initialisation is now done by AliPHOSGetter
  
  if( strcmp(GetTitle(), "") == 0 )
    SetTitle("galice.root") ;
  
  AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;     
  if ( gime == 0 ) {
    cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ; 
    return ;
  } 
  
  //  //add Task to //YSAlice/tasks/SDiditizer/PHOS
  //  TTask * aliceSD  = (TTask*)gROOT->FindObjectAny("YSAlice/tasks/SDigitizer") ; 
  //  TTask * phosSD   = (TTask*)aliceSD->GetListOfTasks()->FindObject("PHOS") ;
  //  if ( ! phosSD->GetListOfTasks()->FindObject(GetName()) ) 
  //   phosSD->Add(this) ;

  gime->PostSDigits( GetName(), GetTitle() ) ; 

  TString sdname(GetName() );
  sdname.Append(":") ;
  sdname.Append(GetTitle() ) ;
  SetName(sdname) ;
  gime->PostSDigitizer(this) ;
 
  // create a folder on the white board //YSAlice/WhiteBoard/SDigits/PHOS/headerFile/sdigitsTitle
    
}

//____________________________________________________________________________
void AliPHOSSDigitizer::Exec(Option_t *option) 
{ 
  // Collects all hits in the same active volume into digit
  if( strcmp(GetName(), "") == 0 )
    Init() ;
  
  if (strstr(option, "print") ) {
    Print("") ; 
    return ; 
  }

  if(strstr(option,"tim"))
    gBenchmark->Start("PHOSSDigitizer");

  //Check, if this branch already exits
  gAlice->GetEvent(0) ;
  if(gAlice->TreeS() ) {
    TObjArray * lob = (TObjArray*)gAlice->TreeS()->GetListOfBranches() ;
    TIter next(lob) ; 
    TBranch * branch = 0 ;  
    Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ; 
    
    while ( (branch = (TBranch*)next()) && (!phosfound || !sdigitizerfound) ) {
      if ( (strcmp(branch->GetName(), "PHOS")==0) && (strcmp(branch->GetTitle(), GetName())==0) ) 
	phosfound = kTRUE ;
      
      else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && (strcmp(branch->GetTitle(), GetName())==0) ) 
	sdigitizerfound = kTRUE ; 
    }
    
    if ( phosfound || sdigitizerfound ) {
      cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName() 
	   << " already exits" << endl ;
      return ; 
    }   
  }  

  TString sdname(GetName()) ;
  sdname.Remove(sdname.Index(GetTitle())-1) ;
    
  AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; 

  Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ; 
  
  Int_t ievent ;
  for(ievent = 0; ievent < nevents; ievent++){
    gime->Event(ievent,"H") ;

    TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
    sdigits->Clear();
    Int_t nSdigits = 0 ;
    
    
    //Now make SDigits from hits, for PHOS it is the same, so just copy    
    Int_t itrack ;
    for (itrack=0; itrack < gAlice->GetNtrack(); itrack++){
  
      //=========== Get the PHOS branch from Hits Tree for the Primary track itrack
      gime->Track(itrack) ;
      TClonesArray * hits = gime->Hits() ;
      Int_t i;
      for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
	AliPHOSHit * hit = (AliPHOSHit *) hits->At(i) ;
	// Assign primary number only if contribution is significant

	if( hit->GetEnergy() > fPrimThreshold)
	  new((*sdigits)[nSdigits]) AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
	else
	  new((*sdigits)[nSdigits]) AliPHOSDigit( -1               , hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
	
	nSdigits++ ;  
	
      } 

    } // loop over tracks
    
    sdigits->Sort() ;
    
    nSdigits = sdigits->GetEntriesFast() ;

    sdigits->Expand(nSdigits) ;
    Int_t i ;
    for (i = 0 ; i < nSdigits ; i++) { 
      AliPHOSDigit * digit = (AliPHOSDigit *) sdigits->At(i) ; 
      digit->SetIndexInList(i) ;     
    }

    if(gAlice->TreeS() == 0)
      gAlice->MakeTree("S") ;
    
    //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 ;    
    TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
    sdigitsBranch->SetTitle(sdname);
    if (file) {
      sdigitsBranch->SetFile(file);
      TIter next( sdigitsBranch->GetListOfBranches());
      TBranch * subbr;
      while ((subbr=(TBranch*)next())) {
	subbr->SetFile(file);
      }   
      cwd->cd();
    } 
      
    //Next - SDigitizer
    Int_t splitlevel = 0 ;
    AliPHOSSDigitizer * sd = this ;
    TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
					       &sd,bufferSize,splitlevel); 
    sdigitizerBranch->SetTitle(sdname);
    if (file) {
      sdigitizerBranch->SetFile(file);
      TIter next( sdigitizerBranch->GetListOfBranches());
      TBranch * subbr ;
      while ((subbr=(TBranch*)next())) {
	subbr->SetFile(file);
      }   
      cwd->cd();
      delete file;
    }

    sdigitsBranch->Fill() ;
    sdigitizerBranch->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")/nevents << " seconds per event " << endl ;
    cout << endl ;
  }
  
  
}
//__________________________________________________________________
void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
{
  // Setting title to branch SDigits 

  TString stitle(title) ;

  // check if branch with title already exists
  TBranch * sdigitsBranch    =  (TBranch*)gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS") ; 
  TBranch * sdigitizerBranch =  (TBranch*)gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer") ;
  const char * sdigitsTitle    = sdigitsBranch ->GetTitle() ;  
  const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
  if ( stitle.CompareTo(sdigitsTitle)==0 || stitle.CompareTo(sdigitizerTitle)==0 ){
    cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
    return ;
  }
  
  cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;

  SetName(title) ; 
    
  // Post to the WhiteBoard
  AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; 
  gime->PostSDigits( title, GetTitle()) ; 
}

//__________________________________________________________________
void AliPHOSSDigitizer::Print(Option_t* option)const
{
  // Prints parameters of SDigitizer
  cout << "------------------- "<< GetName() << " -------------" << endl ;
  cout << "   Writing SDigitis to branch with title  " << GetName() << 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
{
  // Equal operator.
  // SDititizers are equal if their pedestal, slope and threshold are equal

  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 in the current pass of AliPHOSDigitizer

  AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; 
  TString sdname(GetName()) ;
  sdname.Remove(sdname.Index(GetTitle())-1) ;
  TClonesArray * sdigits = gime->SDigits(sdname.Data()) ; 

  cout << "AliPHOSSDigitizer: event "<<gAlice->GetEvNumber() << endl ;
  cout << "       Number of entries in SDigits list  " << sdigits->GetEntriesFast() << endl ;
  cout << endl ;

  fSDigitsInRun +=  sdigits->GetEntriesFast() ; 
  
  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 < sdigits->GetEntries() ; index++) {
      digit = (AliPHOSDigit * )  sdigits->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;  	 
    }
    
  }
}

//____________________________________________________________________________ 
void AliPHOSSDigitizer::UseHitsFrom(const char * filename)
{
  SetTitle(filename) ; 
  Init() ; 
}
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
7b7c1533	20	// The name of the TTask is also the title of the branch that will contain
	21	// the created SDigits
	22	// The title of the TTAsk is the name of the file that contains the hits from
	23	// which the SDigits are created
7acf6008	24	// A Summable Digits is the sum of all hits originating
	25	// from one primary in one active cell
	26	// A threshold for assignment of the primary to SDigit is applied
	27	// SDigits are written to TreeS, branch "PHOS"
	28	// AliPHOSSDigitizer with all current parameters is written
	29	// to TreeS branch "AliPHOSSDigitizer".
f035f6ce	30	// Both branches have the same title. If necessary one can produce
	31	// another set of SDigits with different parameters. Two versions
	32	// can be distunguished using titles of the branches.
	33	// User case:
a4e98857	34	// root [0] AliPHOSSDigitizer * s = new AliPHOSSDigitizer("galice.root")
	35	// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
	36	// root [1] s->ExecuteTask()
f035f6ce	37	// // Makes SDigitis for all events stored in galice.root
a4e98857	38	// root [2] s->SetPedestalParameter(0.001)
f035f6ce	39	// // One can change parameters of digitization
3de072dc	40	// root [3] s->SetSDigitsBranch("Pedestal 0.001")
f035f6ce	41	// // and write them into the new branch
3de072dc	42	// root [4] s->ExecuteTask("deb all tim")
f035f6ce	43	// // available parameters:
	44	// deb - print # of produced SDigitis
	45	// deb all - print # and list of produced SDigits
	46	// tim - print benchmarking information
990119d6	47	//
	48	//*-- Author : Dmitri Peressounko (SUBATECH & KI)
	49	//////////////////////////////////////////////////////////////////////////////
	50
f035f6ce	51
990119d6	52	// --- ROOT system ---
7acf6008	53	#include "TFile.h"
990119d6	54	#include "TTask.h"
	55	#include "TTree.h"
	56	#include "TSystem.h"
7acf6008	57	#include "TROOT.h"
	58	#include "TFolder.h"
	59	#include "TBenchmark.h"
990119d6	60	// --- Standard library ---
7acf6008	61	#include <iomanip.h>
990119d6	62
990119d6	63	// --- AliRoot header files ---
7acf6008	64	#include "AliRun.h"
990119d6	65	#include "AliPHOSDigit.h"
7b7c1533	66	#include "AliPHOSGetter.h"
990119d6	67	#include "AliPHOSHit.h"
990119d6	68	#include "AliPHOSSDigitizer.h"
990119d6	69
990119d6	70
	71	ClassImp(AliPHOSSDigitizer)
	72
	73
	74	//____________________________________________________________________________
7b7c1533	75	AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","")
990119d6	76	{
990119d6	77	// ctor
2bd5457f	78	fA = 0;
2bd5457f	79	fB = 10000000.;
990119d6	80	fPrimThreshold = 0.01 ;
2b60655b	81	fSDigitsInRun = 0 ;
990119d6	82	}
7acf6008	83
990119d6	84	//____________________________________________________________________________
7b7c1533	85	AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile)
990119d6	86	{
990119d6	87	// ctor
2bd5457f	88	fA = 0;
2bd5457f	89	fB = 10000000.;
990119d6	90	fPrimThreshold = 0.01 ;
2b60655b	91	fSDigitsInRun = 0 ;
2bd5457f	92	Init();
990119d6	93	}
990119d6	94
7b7c1533	95
7acf6008	96	//____________________________________________________________________________
a4e98857	97	void AliPHOSSDigitizer::Init()
a4e98857	98	{
2bd5457f	99	// Initialization: open root-file, allocate arrays for hits and sdigits,
	100	// attach task SDigitizer to the list of PHOS tasks
	101	//
a4e98857	102	// Initialization can not be done in the default constructor
7b7c1533	103	//============================================================= YS
	104	// The initialisation is now done by AliPHOSGetter
	105
	106	if( strcmp(GetTitle(), "") == 0 )
	107	SetTitle("galice.root") ;
	108
	109	AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
	110	if ( gime == 0 ) {
	111	cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
	112	return ;
	113	}
	114
5ad40cd6	115	// //add Task to //YSAlice/tasks/SDiditizer/PHOS
	116	// TTask * aliceSD = (TTask*)gROOT->FindObjectAny("YSAlice/tasks/SDigitizer") ;
	117	// TTask * phosSD = (TTask*)aliceSD->GetListOfTasks()->FindObject("PHOS") ;
	118	// if ( ! phosSD->GetListOfTasks()->FindObject(GetName()) )
	119	// phosSD->Add(this) ;
	120
	121	gime->PostSDigits( GetName(), GetTitle() ) ;
	122
	123	TString sdname(GetName() );
	124	sdname.Append(":") ;
	125	sdname.Append(GetTitle() ) ;
	126	SetName(sdname) ;
	127	gime->PostSDigitizer(this) ;
	128
7b7c1533	129	// create a folder on the white board //YSAlice/WhiteBoard/SDigits/PHOS/headerFile/sdigitsTitle
7acf6008	130
7acf6008	131	}
7b7c1533	132
990119d6	133	//____________________________________________________________________________
a4e98857	134	void AliPHOSSDigitizer::Exec(Option_t *option)
	135	{
	136	// Collects all hits in the same active volume into digit
7b7c1533	137	if( strcmp(GetName(), "") == 0 )
7acf6008	138	Init() ;
7b7c1533	139
	140	if (strstr(option, "print") ) {
	141	Print("") ;
	142	return ;
	143	}
990119d6	144
7acf6008	145	if(strstr(option,"tim"))
7acf6008	146	gBenchmark->Start("PHOSSDigitizer");
7b7c1533	147
7b7c1533	148	//Check, if this branch already exits
5ad40cd6	149	gAlice->GetEvent(0) ;
	150	if(gAlice->TreeS() ) {
	151	TObjArray * lob = (TObjArray*)gAlice->TreeS()->GetListOfBranches() ;
	152	TIter next(lob) ;
	153	TBranch * branch = 0 ;
	154	Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
7b7c1533	155
5ad40cd6	156	while ( (branch = (TBranch*)next()) && (!phosfound \|\| !sdigitizerfound) ) {
	157	if ( (strcmp(branch->GetName(), "PHOS")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
	158	phosfound = kTRUE ;
	159
	160	else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
	161	sdigitizerfound = kTRUE ;
	162	}
	163
	164	if ( phosfound \|\| sdigitizerfound ) {
	165	cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
	166	<< " already exits" << endl ;
	167	return ;
	168	}
	169	}
7b7c1533	170
5ad40cd6	171	TString sdname(GetName()) ;
5ad40cd6	172	sdname.Remove(sdname.Index(GetTitle())-1) ;
7b7c1533	173
	174	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
	175
7b7c1533	176	Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
990119d6	177
990119d6	178	Int_t ievent ;
7b7c1533	179	for(ievent = 0; ievent < nevents; ievent++){
5ad40cd6	180	gime->Event(ievent,"H") ;
7b7c1533	181
5ad40cd6	182	TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	183	sdigits->Clear();
990119d6	184	Int_t nSdigits = 0 ;
990119d6	185
990119d6	186
7b7c1533	187	//Now make SDigits from hits, for PHOS it is the same, so just copy
990119d6	188	Int_t itrack ;
077397f6	189	for (itrack=0; itrack < gAlice->GetNtrack(); itrack++){
7b7c1533	190
077397f6	191	//=========== Get the PHOS branch from Hits Tree for the Primary track itrack
5ad40cd6	192	gime->Track(itrack) ;
5ad40cd6	193	TClonesArray * hits = gime->Hits() ;
990119d6	194	Int_t i;
7b7c1533	195	for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
5ad40cd6	196	AliPHOSHit * hit = (AliPHOSHit *) hits->At(i) ;
990119d6	197	// Assign primary number only if contribution is significant
7b7c1533	198
990119d6	199	if( hit->GetEnergy() > fPrimThreshold)
7b7c1533	200	new((*sdigits)[nSdigits]) AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
990119d6	201	else
7b7c1533	202	new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
990119d6	203
990119d6	204	nSdigits++ ;
990119d6	205
990119d6	206	}
7b7c1533	207
990119d6	208	} // loop over tracks
990119d6	209
7b7c1533	210	sdigits->Sort() ;
990119d6	211
7b7c1533	212	nSdigits = sdigits->GetEntriesFast() ;
5ad40cd6	213
7b7c1533	214	sdigits->Expand(nSdigits) ;
990119d6	215	Int_t i ;
990119d6	216	for (i = 0 ; i < nSdigits ; i++) {
7b7c1533	217	AliPHOSDigit * digit = (AliPHOSDigit *) sdigits->At(i) ;
990119d6	218	digit->SetIndexInList(i) ;
990119d6	219	}
7acf6008	220
	221	if(gAlice->TreeS() == 0)
	222	gAlice->MakeTree("S") ;
	223
7acf6008	224	//Make (if necessary) branches
	225	char * file =0;
	226	if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
	227	file = new char[strlen(gAlice->GetBaseFile())+20] ;
	228	sprintf(file,"%s/PHOS.SDigits.root",gAlice->GetBaseFile()) ;
	229	}
	230
	231	TDirectory *cwd = gDirectory;
	232
	233	//First list of sdigits
	234	Int_t bufferSize = 32000 ;
7b7c1533	235	TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
5ad40cd6	236	sdigitsBranch->SetTitle(sdname);
7acf6008	237	if (file) {
	238	sdigitsBranch->SetFile(file);
	239	TIter next( sdigitsBranch->GetListOfBranches());
761e34c0	240	TBranch * subbr;
	241	while ((subbr=(TBranch*)next())) {
	242	subbr->SetFile(file);
7acf6008	243	}
	244	cwd->cd();
	245	}
	246
7b7c1533	247	//Next - SDigitizer
7acf6008	248	Int_t splitlevel = 0 ;
7acf6008	249	AliPHOSSDigitizer * sd = this ;
7b7c1533	250	TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
7acf6008	251	&sd,bufferSize,splitlevel);
5ad40cd6	252	sdigitizerBranch->SetTitle(sdname);
7acf6008	253	if (file) {
	254	sdigitizerBranch->SetFile(file);
	255	TIter next( sdigitizerBranch->GetListOfBranches());
761e34c0	256	TBranch * subbr ;
	257	while ((subbr=(TBranch*)next())) {
	258	subbr->SetFile(file);
7acf6008	259	}
	260	cwd->cd();
	261	delete file;
	262	}
	263
761e34c0	264	sdigitsBranch->Fill() ;
761e34c0	265	sdigitizerBranch->Fill() ;
990119d6	266	gAlice->TreeS()->Write(0,TObject::kOverwrite) ;
7acf6008	267
	268	if(strstr(option,"deb"))
	269	PrintSDigits(option) ;
	270
990119d6	271	}
7acf6008	272
	273	if(strstr(option,"tim")){
	274	gBenchmark->Stop("PHOSSDigitizer");
	275	cout << "AliPHOSSDigitizer:" << endl ;
	276	cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
7b7c1533	277	<< gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
7acf6008	278	cout << endl ;
	279	}
	280
	281
990119d6	282	}
990119d6	283	//__________________________________________________________________
a4e98857	284	void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
	285	{
	286	// Setting title to branch SDigits
7b7c1533	287
	288	TString stitle(title) ;
	289
	290	// check if branch with title already exists
	291	TBranch * sdigitsBranch = (TBranch*)gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS") ;
	292	TBranch * sdigitizerBranch = (TBranch*)gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer") ;
	293	const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
	294	const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
	295	if ( stitle.CompareTo(sdigitsTitle)==0 \|\| stitle.CompareTo(sdigitizerTitle)==0 ){
	296	cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
	297	return ;
	298	}
	299
	300	cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
	301
	302	SetName(title) ;
	303
	304	// Post to the WhiteBoard
	305	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	306	gime->PostSDigits( title, GetTitle()) ;
990119d6	307	}
7b7c1533	308
990119d6	309	//__________________________________________________________________
a4e98857	310	void AliPHOSSDigitizer::Print(Option_t* option)const
	311	{
	312	// Prints parameters of SDigitizer
990119d6	313	cout << "------------------- "<< GetName() << " -------------" << endl ;
7b7c1533	314	cout << " Writing SDigitis to branch with title " << GetName() << endl ;
7acf6008	315	cout << " with digitization parameters A = " << fA << endl ;
	316	cout << " B = " << fB << endl ;
	317	cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
990119d6	318	cout << "---------------------------------------------------"<<endl ;
7acf6008	319
990119d6	320	}
990119d6	321	//__________________________________________________________________
a4e98857	322	Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
a4e98857	323	{
3de072dc	324	// Equal operator.
	325	// SDititizers are equal if their pedestal, slope and threshold are equal
	326
990119d6	327	if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
	328	return kTRUE ;
	329	else
	330	return kFALSE ;
	331	}
7acf6008	332	//__________________________________________________________________
a4e98857	333	void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
	334	{
	335	// Prints list of digits produced in the current pass of AliPHOSDigitizer
7b7c1533	336
7b7c1533	337	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	338	TString sdname(GetName()) ;
	339	sdname.Remove(sdname.Index(GetTitle())-1) ;
	340	TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	341
01a599c9	342	cout << "AliPHOSSDigitizer: event "<<gAlice->GetEvNumber() << endl ;
7b7c1533	343	cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
7acf6008	344	cout << endl ;
2b60655b	345
2b60655b	346	fSDigitsInRun += sdigits->GetEntriesFast() ;
7acf6008	347
	348	if(strstr(option,"all")){// print all digits
	349
	350	//loop over digits
	351	AliPHOSDigit * digit;
	352	cout << "SDigit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl;
	353	Int_t index ;
7b7c1533	354	for (index = 0 ; index < sdigits->GetEntries() ; index++) {
7b7c1533	355	digit = (AliPHOSDigit * ) sdigits->At(index) ;
7acf6008	356	cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " "
	357	<< setw(6) << digit->GetIndexInList() << " "
	358	<< setw(5) << digit->GetNprimary() <<" ";
	359
	360	Int_t iprimary;
	361	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
	362	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
	363	cout << endl;
	364	}
	365
	366	}
	367	}
7b7c1533	368
	369	//____________________________________________________________________________
	370	void AliPHOSSDigitizer::UseHitsFrom(const char * filename)
	371	{
	372	SetTitle(filename) ;
	373	Init() ;
	374	}