[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"
#include "TGeometry.h"

// --- Standard library ---
#include <iomanip.h>

// --- AliRoot header files ---
#include "AliRun.h"
#include "AliHeader.h"
#include "AliPHOSDigit.h"
#include "AliPHOSGeometry.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 ; 
  fSplitFile     = 0 ; 
}

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

//____________________________________________________________________________ 
AliPHOSSDigitizer::~AliPHOSSDigitizer()
{
  if (fSplitFile) 
    if ( fSplitFile->IsOpen() ) 
      fSplitFile->Close() ; 
}

//____________________________________________________________________________ 
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 ;
  } 
  
  gime->PostSDigits( GetName(), GetTitle() ) ; 

  TString sdname(GetName() );
  sdname.Append(":") ;
  sdname.Append(GetTitle() ) ;
  SetName(sdname) ;
  gime->PostSDigitizer(this) ;
}

//____________________________________________________________________________
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) ;

  TString sdname(GetName()) ;
  sdname.Remove(sdname.Index(GetTitle())-1) ;
  
  if(gAlice->TreeS() ) {
    TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
    TIter next(lob) ; 
    TBranch * branch = 0 ;  
    Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ; 
    
    while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound || !sdigitizerfound) ) {
      TString thisName( GetName() ) ; 
      TString branchName( branch->GetTitle() ) ; 
      branchName.Append(":") ; 
      if ( (strcmp(branch->GetName(), "PHOS")==0) && thisName.BeginsWith(branchName) )  
	phosfound = kTRUE ;
      else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) &&  thisName.BeginsWith(branchName) )
	sdigitizerfound = kTRUE ; 
    }
    
    if ( phosfound || sdigitizerfound ) {
      cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName() 
	   << " already exits" << endl ;
      return ; 
    }   
  }  

  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") ;
    const TClonesArray * hits = gime->Hits() ;
    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 Nprim =  (Int_t)  (gAlice->TreeH())->GetEntries(); 
    // Attention Nprim is the number of primaries tracked by Geant and this number could be different to the number of Primaries in TreeK;
    Int_t iprim;
    for (iprim=0; iprim<Nprim; iprim++) { 
      //=========== Get the PHOS branch from Hits Tree for the Primary iprim
      gime->Track(iprim) ;
      Int_t i;
      for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
	AliPHOSHit * hit = dynamic_cast<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()), hit->GetTime()) ;
	else
	  new((*sdigits)[nSdigits]) AliPHOSDigit( -1              , hit->GetId(), 
						   Digitize(hit->GetEnergy()), hit->GetTime()) ;
	nSdigits++ ;	
	
      }

    } // loop over iprim
    
    sdigits->Sort() ;
    
    nSdigits = sdigits->GetEntriesFast() ;
    fSDigitsInRun += nSdigits ;  
    sdigits->Expand(nSdigits) ;

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

    if(gAlice->TreeS() == 0)
      gAlice->MakeTree("S", fSplitFile);
    
    //First list of sdigits
    Int_t bufferSize = 32000 ;    
    TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
    sdigitsBranch->SetTitle(sdname);
      
    //Next - SDigitizer
    Int_t splitlevel = 0 ;
    AliPHOSSDigitizer * sd = this ;
    TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
					       &sd,bufferSize,splitlevel); 
    sdigitizerBranch->SetTitle(sdname);
  
    sdigitsBranch->Fill() ; 
    sdigitizerBranch->Fill() ;
    gAlice->TreeS()->AutoSave() ;
    
    if(strstr(option,"deb"))
      PrintSDigits(option) ;
  
  }

  if (fSplitFile) 
    if ( fSplitFile->IsOpen() ) 
      fSplitFile->Close() ; 
  

  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    = 
    static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ; 
  TBranch * sdigitizerBranch =  
    static_cast<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::SetSplitFile(const TString splitFileName) 
{
  // Diverts the SDigits in a file separate from the hits file
  
  TDirectory * cwd = gDirectory ;
  
  if ( !(gAlice->GetTreeSFileName() == splitFileName) ) {
    if (gAlice->GetTreeSFile() ) 
      gAlice->GetTreeSFile()->Close() ; 
  }
  
  fSplitFile = gAlice->InitTreeFile("S",splitFileName.Data());
  fSplitFile->cd() ; 
  if ( !fSplitFile->Get("gAlice") ) 
    gAlice->Write();
  
  TTree *treeE  = gAlice->TreeE();
  if (!treeE) {
    cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
    abort() ;
  }      
  
  // copy TreeE
  if ( !fSplitFile->Get("TreeE") ) {
    AliHeader *header = new AliHeader();
    treeE->SetBranchAddress("Header", &header);
    treeE->SetBranchStatus("*",1);
    TTree *treeENew =  treeE->CloneTree();
    treeENew->Write();
  }

  // copy AliceGeom
  if ( !fSplitFile->Get("AliceGeom") ) {
    TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
    if (!AliceGeom) {
      cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> AliceGeom was not found in the input file "<<endl;
      abort() ;
    }
    AliceGeom->Write();
  }

  gAlice->MakeTree("S",fSplitFile);
  cwd->cd() ; 
}

//__________________________________________________________________
void AliPHOSSDigitizer::Print(Option_t* option)const
{
  // Prints parameters of SDigitizer
  cout << "------------------- "<< GetName() << " -------------" << endl ;
  cout << "   Writing SDigits 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) ;
  const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ; 

  cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ;
  cout << "      Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
  cout << endl ;
  if(strstr(option,"all")||strstr(option,"EMC")){
    
    //loop over digits
    AliPHOSDigit * digit;
    cout << "EMC sdigits " << endl ;
    cout << "Digit Id    Amplitude     Index     Nprim  Primaries list " <<  endl;      
    Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
    Int_t index ;
    for (index = 0 ; (index < sdigits->GetEntriesFast()) && 
	 (((AliPHOSDigit * )  sdigits->At(index))->GetId() <= maxEmc) ; index++) {
      digit = (AliPHOSDigit * )  sdigits->At(index) ;
      if(digit->GetNprimary() == 0) continue;
      cout << setw(6)  <<  digit->GetId() << "   "  << 	setw(10)  <<  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;  	 
    }    
    cout << endl;
  }

  if(strstr(option,"all")||strstr(option,"CPV")){
    
    //loop over CPV digits
    AliPHOSDigit * digit;
    cout << "CPV sdigits " << endl ;
    cout << "Digit Id    Amplitude     Index     Nprim  Primaries list " <<  endl;      
    Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
    Int_t index ;
    for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
      digit = (AliPHOSDigit * )  sdigits->At(index) ;
      if(digit->GetId() > maxEmc){
	cout << setw(6)  <<  digit->GetId() << "   "  << 	setw(10)  <<  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
c093f031	16
990119d6	17	/* $Id$ */
	18
	19	//_________________________________________________________________________
7acf6008	20	// This is a TTask that makes SDigits out of Hits
7b7c1533	21	// The name of the TTask is also the title of the branch that will contain
	22	// the created SDigits
	23	// The title of the TTAsk is the name of the file that contains the hits from
	24	// which the SDigits are created
7acf6008	25	// A Summable Digits is the sum of all hits originating
	26	// from one primary in one active cell
	27	// A threshold for assignment of the primary to SDigit is applied
	28	// SDigits are written to TreeS, branch "PHOS"
	29	// AliPHOSSDigitizer with all current parameters is written
	30	// to TreeS branch "AliPHOSSDigitizer".
f035f6ce	31	// Both branches have the same title. If necessary one can produce
	32	// another set of SDigits with different parameters. Two versions
	33	// can be distunguished using titles of the branches.
	34	// User case:
a4e98857	35	// root [0] AliPHOSSDigitizer * s = new AliPHOSSDigitizer("galice.root")
	36	// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
	37	// root [1] s->ExecuteTask()
f035f6ce	38	// // Makes SDigitis for all events stored in galice.root
a4e98857	39	// root [2] s->SetPedestalParameter(0.001)
f035f6ce	40	// // One can change parameters of digitization
3de072dc	41	// root [3] s->SetSDigitsBranch("Pedestal 0.001")
f035f6ce	42	// // and write them into the new branch
3de072dc	43	// root [4] s->ExecuteTask("deb all tim")
f035f6ce	44	// // available parameters:
	45	// deb - print # of produced SDigitis
	46	// deb all - print # and list of produced SDigits
	47	// tim - print benchmarking information
990119d6	48	//
	49	//*-- Author : Dmitri Peressounko (SUBATECH & KI)
	50	//////////////////////////////////////////////////////////////////////////////
	51
f035f6ce	52
990119d6	53	// --- ROOT system ---
7acf6008	54	#include "TFile.h"
990119d6	55	#include "TTask.h"
	56	#include "TTree.h"
	57	#include "TSystem.h"
7acf6008	58	#include "TROOT.h"
	59	#include "TFolder.h"
	60	#include "TBenchmark.h"
106fc2fa	61	#include "TGeometry.h"
106fc2fa	62
990119d6	63	// --- Standard library ---
7acf6008	64	#include <iomanip.h>
990119d6	65
990119d6	66	// --- AliRoot header files ---
7acf6008	67	#include "AliRun.h"
106fc2fa	68	#include "AliHeader.h"
990119d6	69	#include "AliPHOSDigit.h"
a6eedfad	70	#include "AliPHOSGeometry.h"
7b7c1533	71	#include "AliPHOSGetter.h"
990119d6	72	#include "AliPHOSHit.h"
990119d6	73	#include "AliPHOSSDigitizer.h"
990119d6	74
990119d6	75
	76	ClassImp(AliPHOSSDigitizer)
	77
	78
	79	//____________________________________________________________________________
7b7c1533	80	AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","")
990119d6	81	{
990119d6	82	// ctor
2bd5457f	83	fA = 0;
2bd5457f	84	fB = 10000000.;
990119d6	85	fPrimThreshold = 0.01 ;
2b60655b	86	fSDigitsInRun = 0 ;
c093f031	87	fSplitFile = 0 ;
990119d6	88	}
7acf6008	89
990119d6	90	//____________________________________________________________________________
7b7c1533	91	AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile)
990119d6	92	{
990119d6	93	// ctor
2bd5457f	94	fA = 0;
2bd5457f	95	fB = 10000000.;
990119d6	96	fPrimThreshold = 0.01 ;
106fc2fa	97	fSDigitsInRun = 0 ;
c093f031	98	fSplitFile = 0 ;
2bd5457f	99	Init();
990119d6	100	}
990119d6	101
c093f031	102	//____________________________________________________________________________
	103	AliPHOSSDigitizer::~AliPHOSSDigitizer()
	104	{
	105	if (fSplitFile)
	106	if ( fSplitFile->IsOpen() )
	107	fSplitFile->Close() ;
	108	}
7b7c1533	109
7acf6008	110	//____________________________________________________________________________
a4e98857	111	void AliPHOSSDigitizer::Init()
a4e98857	112	{
2bd5457f	113	// Initialization: open root-file, allocate arrays for hits and sdigits,
	114	// attach task SDigitizer to the list of PHOS tasks
	115	//
a4e98857	116	// Initialization can not be done in the default constructor
7b7c1533	117	//============================================================= YS
	118	// The initialisation is now done by AliPHOSGetter
	119
	120	if( strcmp(GetTitle(), "") == 0 )
	121	SetTitle("galice.root") ;
85f78bbc	122
7b7c1533	123	AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
	124	if ( gime == 0 ) {
	125	cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
	126	return ;
	127	}
	128
5ad40cd6	129	gime->PostSDigits( GetName(), GetTitle() ) ;
	130
	131	TString sdname(GetName() );
	132	sdname.Append(":") ;
	133	sdname.Append(GetTitle() ) ;
	134	SetName(sdname) ;
	135	gime->PostSDigitizer(this) ;
7acf6008	136	}
7b7c1533	137
990119d6	138	//____________________________________________________________________________
a4e98857	139	void AliPHOSSDigitizer::Exec(Option_t *option)
	140	{
	141	// Collects all hits in the same active volume into digit
7b7c1533	142	if( strcmp(GetName(), "") == 0 )
7acf6008	143	Init() ;
7b7c1533	144
	145	if (strstr(option, "print") ) {
	146	Print("") ;
	147	return ;
	148	}
990119d6	149
7acf6008	150	if(strstr(option,"tim"))
7acf6008	151	gBenchmark->Start("PHOSSDigitizer");
7b7c1533	152
7b7c1533	153	//Check, if this branch already exits
5ad40cd6	154	gAlice->GetEvent(0) ;
a2d8b8a4	155
	156	TString sdname(GetName()) ;
	157	sdname.Remove(sdname.Index(GetTitle())-1) ;
	158
5ad40cd6	159	if(gAlice->TreeS() ) {
7a9d98f9	160	TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
5ad40cd6	161	TIter next(lob) ;
	162	TBranch * branch = 0 ;
	163	Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
7b7c1533	164
7a9d98f9	165	while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound \|\| !sdigitizerfound) ) {
c093f031	166	TString thisName( GetName() ) ;
	167	TString branchName( branch->GetTitle() ) ;
	168	branchName.Append(":") ;
	169	if ( (strcmp(branch->GetName(), "PHOS")==0) && thisName.BeginsWith(branchName) )
5ad40cd6	170	phosfound = kTRUE ;
c093f031	171	else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && thisName.BeginsWith(branchName) )
5ad40cd6	172	sdigitizerfound = kTRUE ;
	173	}
	174
	175	if ( phosfound \|\| sdigitizerfound ) {
	176	cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
	177	<< " already exits" << endl ;
	178	return ;
	179	}
	180	}
7b7c1533	181
7b7c1533	182	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7b7c1533	183
7b7c1533	184	Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
990119d6	185
990119d6	186	Int_t ievent ;
7b7c1533	187	for(ievent = 0; ievent < nevents; ievent++){
5ad40cd6	188	gime->Event(ievent,"H") ;
017addb3	189	const TClonesArray * hits = gime->Hits() ;
5ad40cd6	190	TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	191	sdigits->Clear();
990119d6	192	Int_t nSdigits = 0 ;
990119d6	193
990119d6	194
7b7c1533	195	//Now make SDigits from hits, for PHOS it is the same, so just copy
c093f031	196
3962b6a1	197	Int_t Nprim = (Int_t) (gAlice->TreeH())->GetEntries();
	198	// Attention Nprim is the number of primaries tracked by Geant and this number could be different to the number of Primaries in TreeK;
	199	Int_t iprim;
	200	for (iprim=0; iprim<Nprim; iprim++) {
	201	//=========== Get the PHOS branch from Hits Tree for the Primary iprim
	202	gime->Track(iprim) ;
990119d6	203	Int_t i;
7b7c1533	204	for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
7a9d98f9	205	AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ;
990119d6	206	// Assign primary number only if contribution is significant
9688c1dd	207
990119d6	208	if( hit->GetEnergy() > fPrimThreshold)
9688c1dd	209	new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(),
9688c1dd	210	Digitize(hit->GetEnergy()), hit->GetTime()) ;
990119d6	211	else
9688c1dd	212	new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(),
	213	Digitize(hit->GetEnergy()), hit->GetTime()) ;
	214	nSdigits++ ;
990119d6	215
9688c1dd	216	}
c093f031	217
3962b6a1	218	} // loop over iprim
990119d6	219
7b7c1533	220	sdigits->Sort() ;
990119d6	221
7b7c1533	222	nSdigits = sdigits->GetEntriesFast() ;
69866bef	223	fSDigitsInRun += nSdigits ;
7b7c1533	224	sdigits->Expand(nSdigits) ;
c093f031	225
3962b6a1	226	Int_t i ;
990119d6	227	for (i = 0 ; i < nSdigits ; i++) {
7a9d98f9	228	AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ;
990119d6	229	digit->SetIndexInList(i) ;
990119d6	230	}
3962b6a1	231
106fc2fa	232	if(gAlice->TreeS() == 0)
85f78bbc	233	gAlice->MakeTree("S", fSplitFile);
c093f031	234
7acf6008	235	//First list of sdigits
7acf6008	236	Int_t bufferSize = 32000 ;
7b7c1533	237	TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
5ad40cd6	238	sdigitsBranch->SetTitle(sdname);
7acf6008	239
7b7c1533	240	//Next - SDigitizer
7acf6008	241	Int_t splitlevel = 0 ;
7acf6008	242	AliPHOSSDigitizer * sd = this ;
7b7c1533	243	TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
7acf6008	244	&sd,bufferSize,splitlevel);
5ad40cd6	245	sdigitizerBranch->SetTitle(sdname);
c093f031	246
42d2745f	247	sdigitsBranch->Fill() ;
c093f031	248	sdigitizerBranch->Fill() ;
42d2745f	249	gAlice->TreeS()->AutoSave() ;
7acf6008	250
	251	if(strstr(option,"deb"))
	252	PrintSDigits(option) ;
c093f031	253
990119d6	254	}
c093f031	255
	256	if (fSplitFile)
	257	if ( fSplitFile->IsOpen() )
	258	fSplitFile->Close() ;
7acf6008	259
c093f031	260
7acf6008	261	if(strstr(option,"tim")){
	262	gBenchmark->Stop("PHOSSDigitizer");
	263	cout << "AliPHOSSDigitizer:" << endl ;
	264	cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
7b7c1533	265	<< gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
7acf6008	266	cout << endl ;
	267	}
	268
	269
990119d6	270	}
106fc2fa	271
990119d6	272	//__________________________________________________________________
a4e98857	273	void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
	274	{
	275	// Setting title to branch SDigits
7b7c1533	276
	277	TString stitle(title) ;
	278
	279	// check if branch with title already exists
7a9d98f9	280	TBranch * sdigitsBranch =
	281	static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ;
	282	TBranch * sdigitizerBranch =
	283	static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ;
7b7c1533	284	const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
	285	const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
	286	if ( stitle.CompareTo(sdigitsTitle)==0 \|\| stitle.CompareTo(sdigitizerTitle)==0 ){
	287	cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
	288	return ;
	289	}
	290
	291	cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
	292
	293	SetName(title) ;
	294
	295	// Post to the WhiteBoard
	296	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	297	gime->PostSDigits( title, GetTitle()) ;
990119d6	298	}
7b7c1533	299
106fc2fa	300	//__________________________________________________________________
c093f031	301	void AliPHOSSDigitizer::SetSplitFile(const TString splitFileName)
106fc2fa	302	{
	303	// Diverts the SDigits in a file separate from the hits file
	304
	305	TDirectory * cwd = gDirectory ;
c093f031	306
	307	if ( !(gAlice->GetTreeSFileName() == splitFileName) ) {
	308	if (gAlice->GetTreeSFile() )
	309	gAlice->GetTreeSFile()->Close() ;
	310	}
	311
	312	fSplitFile = gAlice->InitTreeFile("S",splitFileName.Data());
	313	fSplitFile->cd() ;
	314	if ( !fSplitFile->Get("gAlice") )
	315	gAlice->Write();
106fc2fa	316
	317	TTree *treeE = gAlice->TreeE();
	318	if (!treeE) {
c093f031	319	cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
106fc2fa	320	abort() ;
	321	}
	322
	323	// copy TreeE
c093f031	324	if ( !fSplitFile->Get("TreeE") ) {
	325	AliHeader *header = new AliHeader();
	326	treeE->SetBranchAddress("Header", &header);
	327	treeE->SetBranchStatus("*",1);
	328	TTree *treeENew = treeE->CloneTree();
	329	treeENew->Write();
	330	}
	331
106fc2fa	332	// copy AliceGeom
c093f031	333	if ( !fSplitFile->Get("AliceGeom") ) {
	334	TGeometry AliceGeom = static_cast<TGeometry>(cwd->Get("AliceGeom"));
	335	if (!AliceGeom) {
	336	cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> AliceGeom was not found in the input file "<<endl;
	337	abort() ;
	338	}
	339	AliceGeom->Write();
106fc2fa	340	}
c093f031	341
c093f031	342	gAlice->MakeTree("S",fSplitFile);
85f78bbc	343	cwd->cd() ;
106fc2fa	344	}
106fc2fa	345
990119d6	346	//__________________________________________________________________
a4e98857	347	void AliPHOSSDigitizer::Print(Option_t* option)const
	348	{
	349	// Prints parameters of SDigitizer
990119d6	350	cout << "------------------- "<< GetName() << " -------------" << endl ;
7a9d98f9	351	cout << " Writing SDigits to branch with title " << GetName() << endl ;
7acf6008	352	cout << " with digitization parameters A = " << fA << endl ;
	353	cout << " B = " << fB << endl ;
	354	cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
990119d6	355	cout << "---------------------------------------------------"<<endl ;
7acf6008	356
990119d6	357	}
990119d6	358	//__________________________________________________________________
a4e98857	359	Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
a4e98857	360	{
3de072dc	361	// Equal operator.
	362	// SDititizers are equal if their pedestal, slope and threshold are equal
	363
990119d6	364	if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
	365	return kTRUE ;
	366	else
	367	return kFALSE ;
	368	}
7acf6008	369	//__________________________________________________________________
a6eedfad	370	//__________________________________________________________________
a4e98857	371	void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
	372	{
	373	// Prints list of digits produced in the current pass of AliPHOSDigitizer
7b7c1533	374
a6eedfad	375
7b7c1533	376	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	377	TString sdname(GetName()) ;
5ad40cd6	378	sdname.Remove(sdname.Index(GetTitle())-1) ;
017addb3	379	const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	380
a6eedfad	381	cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ;
a6eedfad	382	cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
7acf6008	383	cout << endl ;
a6eedfad	384	if(strstr(option,"all")\|\|strstr(option,"EMC")){
7acf6008	385
	386	//loop over digits
	387	AliPHOSDigit * digit;
a6eedfad	388	cout << "EMC sdigits " << endl ;
	389	cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
	390	Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
7acf6008	391	Int_t index ;
a6eedfad	392	for (index = 0 ; (index < sdigits->GetEntriesFast()) &&
a6eedfad	393	(((AliPHOSDigit * ) sdigits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533	394	digit = (AliPHOSDigit * ) sdigits->At(index) ;
a6eedfad	395	if(digit->GetNprimary() == 0) continue;
	396	cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
	397	<< setw(6) << digit->GetIndexInList() << " "
	398	<< setw(5) << digit->GetNprimary() <<" ";
7acf6008	399
	400	Int_t iprimary;
	401	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
a6eedfad	402	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
7acf6008	403	cout << endl;
a6eedfad	404	}
	405	cout << endl;
	406	}
	407
	408	if(strstr(option,"all")\|\|strstr(option,"CPV")){
7acf6008	409
a6eedfad	410	//loop over CPV digits
	411	AliPHOSDigit * digit;
	412	cout << "CPV sdigits " << endl ;
	413	cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
	414	Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
	415	Int_t index ;
	416	for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
	417	digit = (AliPHOSDigit * ) sdigits->At(index) ;
	418	if(digit->GetId() > maxEmc){
	419	cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
	420	<< setw(6) << digit->GetIndexInList() << " "
	421	<< setw(5) << digit->GetNprimary() <<" ";
	422
	423	Int_t iprimary;
	424	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
	425	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
	426	cout << endl;
	427	}
	428	}
7acf6008	429	}
a6eedfad	430
7acf6008	431	}
7b7c1533	432
	433	//____________________________________________________________________________
	434	void AliPHOSSDigitizer::UseHitsFrom(const char * filename)
	435	{
	436	SetTitle(filename) ;
	437	Init() ;
	438	}