[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 ; 
}

//____________________________________________________________________________ 
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 ;
  } 
  
  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) ) {
      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 ; 
    }   
  }  

  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    

//******************** CHECK HERE
//YS DOES NOT UNDERSTAND THE NEED FOR THE FOLLOWING LOOP
//     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) ;
      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 tracks
    
    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") ;
        
    //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() ; 

    gAlice->TreeS()->AutoSave() ;
    
    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    = 
    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) const
{
  // Diverts the SDigits in a file separate from the hits file
  
  TDirectory * cwd = gDirectory ;
  TFile * splitFile = gAlice->InitTreeFile("S",splitFileName.Data());
  splitFile->cd() ; 
  gAlice->Write();
  
  TTree *treeE  = gAlice->TreeE();
  if (!treeE) {
    cerr<<"No TreeE found "<<endl;
    abort() ;
  }      
  
  // copy TreeE
  AliHeader *header = new AliHeader();
  treeE->SetBranchAddress("Header", &header);
  treeE->SetBranchStatus("*",1);
  TTree *treeENew =  treeE->CloneTree();
  treeENew->Write();
  
  // copy AliceGeom
  TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
  if (!AliceGeom) {
    cerr<<"AliceGeom was not found in the input file "<<endl;
    abort() ;
  }
  AliceGeom->Write();
  cwd->cd() ; 
  gAlice->MakeTree("S",splitFile);
  cout << "INFO: AliPHOSSDigitizer::SetSPlitMode -> SDigits will be stored in " << splitFileName.Data() << endl ; 
}

//__________________________________________________________________
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
	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"
106fc2fa	60	#include "TGeometry.h"
106fc2fa	61
990119d6	62	// --- Standard library ---
7acf6008	63	#include <iomanip.h>
990119d6	64
990119d6	65	// --- AliRoot header files ---
7acf6008	66	#include "AliRun.h"
106fc2fa	67	#include "AliHeader.h"
990119d6	68	#include "AliPHOSDigit.h"
a6eedfad	69	#include "AliPHOSGeometry.h"
7b7c1533	70	#include "AliPHOSGetter.h"
990119d6	71	#include "AliPHOSHit.h"
990119d6	72	#include "AliPHOSSDigitizer.h"
990119d6	73
990119d6	74
	75	ClassImp(AliPHOSSDigitizer)
	76
	77
	78	//____________________________________________________________________________
7b7c1533	79	AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","")
990119d6	80	{
990119d6	81	// ctor
2bd5457f	82	fA = 0;
2bd5457f	83	fB = 10000000.;
990119d6	84	fPrimThreshold = 0.01 ;
2b60655b	85	fSDigitsInRun = 0 ;
990119d6	86	}
7acf6008	87
990119d6	88	//____________________________________________________________________________
7b7c1533	89	AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile)
990119d6	90	{
990119d6	91	// ctor
2bd5457f	92	fA = 0;
2bd5457f	93	fB = 10000000.;
990119d6	94	fPrimThreshold = 0.01 ;
106fc2fa	95	fSDigitsInRun = 0 ;
2bd5457f	96	Init();
990119d6	97	}
990119d6	98
7b7c1533	99
7acf6008	100	//____________________________________________________________________________
a4e98857	101	void AliPHOSSDigitizer::Init()
a4e98857	102	{
2bd5457f	103	// Initialization: open root-file, allocate arrays for hits and sdigits,
	104	// attach task SDigitizer to the list of PHOS tasks
	105	//
a4e98857	106	// Initialization can not be done in the default constructor
7b7c1533	107	//============================================================= YS
	108	// The initialisation is now done by AliPHOSGetter
	109
	110	if( strcmp(GetTitle(), "") == 0 )
	111	SetTitle("galice.root") ;
	112
	113	AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
	114	if ( gime == 0 ) {
	115	cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
	116	return ;
	117	}
	118
5ad40cd6	119	gime->PostSDigits( GetName(), GetTitle() ) ;
	120
	121	TString sdname(GetName() );
	122	sdname.Append(":") ;
	123	sdname.Append(GetTitle() ) ;
	124	SetName(sdname) ;
	125	gime->PostSDigitizer(this) ;
7acf6008	126	}
7b7c1533	127
990119d6	128	//____________________________________________________________________________
a4e98857	129	void AliPHOSSDigitizer::Exec(Option_t *option)
	130	{
	131	// Collects all hits in the same active volume into digit
7b7c1533	132	if( strcmp(GetName(), "") == 0 )
7acf6008	133	Init() ;
7b7c1533	134
	135	if (strstr(option, "print") ) {
	136	Print("") ;
	137	return ;
	138	}
990119d6	139
7acf6008	140	if(strstr(option,"tim"))
7acf6008	141	gBenchmark->Start("PHOSSDigitizer");
7b7c1533	142
7b7c1533	143	//Check, if this branch already exits
5ad40cd6	144	gAlice->GetEvent(0) ;
a2d8b8a4	145
	146	TString sdname(GetName()) ;
	147	sdname.Remove(sdname.Index(GetTitle())-1) ;
	148
5ad40cd6	149	if(gAlice->TreeS() ) {
7a9d98f9	150	TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
5ad40cd6	151	TIter next(lob) ;
	152	TBranch * branch = 0 ;
	153	Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
7b7c1533	154
7a9d98f9	155	while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound \|\| !sdigitizerfound) ) {
5ad40cd6	156	if ( (strcmp(branch->GetName(), "PHOS")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
	157	phosfound = kTRUE ;
	158
	159	else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
	160	sdigitizerfound = kTRUE ;
	161	}
	162
	163	if ( phosfound \|\| sdigitizerfound ) {
	164	cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
	165	<< " already exits" << endl ;
	166	return ;
	167	}
	168	}
7b7c1533	169
7b7c1533	170	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7b7c1533	171
7b7c1533	172	Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
990119d6	173
990119d6	174	Int_t ievent ;
7b7c1533	175	for(ievent = 0; ievent < nevents; ievent++){
5ad40cd6	176	gime->Event(ievent,"H") ;
017addb3	177	const TClonesArray * hits = gime->Hits() ;
5ad40cd6	178	TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	179	sdigits->Clear();
990119d6	180	Int_t nSdigits = 0 ;
990119d6	181
990119d6	182
7b7c1533	183	//Now make SDigits from hits, for PHOS it is the same, so just copy
017addb3	184
	185	//******************** CHECK HERE
	186	//YS DOES NOT UNDERSTAND THE NEED FOR THE FOLLOWING LOOP
	187	// Int_t itrack ;
	188	// for (itrack=0; itrack < gAlice->GetNtrack(); itrack++){
	189	// //=========== Get the PHOS branch from Hits Tree for the Primary track itrack
	190	// gime->Track(itrack) ;
990119d6	191	Int_t i;
7b7c1533	192	for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
7a9d98f9	193	AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ;
990119d6	194	// Assign primary number only if contribution is significant
9688c1dd	195
990119d6	196	if( hit->GetEnergy() > fPrimThreshold)
9688c1dd	197	new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(),
9688c1dd	198	Digitize(hit->GetEnergy()), hit->GetTime()) ;
990119d6	199	else
9688c1dd	200	new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(),
	201	Digitize(hit->GetEnergy()), hit->GetTime()) ;
	202	nSdigits++ ;
990119d6	203
9688c1dd	204	}
017addb3	205	// } // loop over tracks
990119d6	206
7b7c1533	207	sdigits->Sort() ;
990119d6	208
7b7c1533	209	nSdigits = sdigits->GetEntriesFast() ;
69866bef	210	fSDigitsInRun += nSdigits ;
7b7c1533	211	sdigits->Expand(nSdigits) ;
017addb3	212	// Int_t i ;
990119d6	213	for (i = 0 ; i < nSdigits ; i++) {
7a9d98f9	214	AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ;
990119d6	215	digit->SetIndexInList(i) ;
990119d6	216	}
7acf6008	217
106fc2fa	218	if(gAlice->TreeS() == 0)
	219	gAlice->MakeTree("S") ;
	220
7acf6008	221	//First list of sdigits
7acf6008	222	Int_t bufferSize = 32000 ;
7b7c1533	223	TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
5ad40cd6	224	sdigitsBranch->SetTitle(sdname);
7acf6008	225
7b7c1533	226	//Next - SDigitizer
7acf6008	227	Int_t splitlevel = 0 ;
7acf6008	228	AliPHOSSDigitizer * sd = this ;
7b7c1533	229	TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
7acf6008	230	&sd,bufferSize,splitlevel);
5ad40cd6	231	sdigitizerBranch->SetTitle(sdname);
42d2745f	232	sdigitsBranch->Fill() ;
106fc2fa	233
42d2745f	234	gAlice->TreeS()->AutoSave() ;
7acf6008	235
	236	if(strstr(option,"deb"))
	237	PrintSDigits(option) ;
	238
990119d6	239	}
7acf6008	240
	241	if(strstr(option,"tim")){
	242	gBenchmark->Stop("PHOSSDigitizer");
	243	cout << "AliPHOSSDigitizer:" << endl ;
	244	cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
7b7c1533	245	<< gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
7acf6008	246	cout << endl ;
	247	}
	248
	249
990119d6	250	}
106fc2fa	251
990119d6	252	//__________________________________________________________________
a4e98857	253	void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
	254	{
	255	// Setting title to branch SDigits
7b7c1533	256
	257	TString stitle(title) ;
	258
	259	// check if branch with title already exists
7a9d98f9	260	TBranch * sdigitsBranch =
	261	static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ;
	262	TBranch * sdigitizerBranch =
	263	static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ;
7b7c1533	264	const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
	265	const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
	266	if ( stitle.CompareTo(sdigitsTitle)==0 \|\| stitle.CompareTo(sdigitizerTitle)==0 ){
	267	cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
	268	return ;
	269	}
	270
	271	cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
	272
	273	SetName(title) ;
	274
	275	// Post to the WhiteBoard
	276	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	277	gime->PostSDigits( title, GetTitle()) ;
990119d6	278	}
7b7c1533	279
106fc2fa	280	//__________________________________________________________________
	281	void AliPHOSSDigitizer::SetSplitFile(const TString splitFileName) const
	282	{
	283	// Diverts the SDigits in a file separate from the hits file
	284
	285	TDirectory * cwd = gDirectory ;
	286	TFile * splitFile = gAlice->InitTreeFile("S",splitFileName.Data());
	287	splitFile->cd() ;
	288	gAlice->Write();
	289
	290	TTree *treeE = gAlice->TreeE();
	291	if (!treeE) {
	292	cerr<<"No TreeE found "<<endl;
	293	abort() ;
	294	}
	295
	296	// copy TreeE
	297	AliHeader *header = new AliHeader();
	298	treeE->SetBranchAddress("Header", &header);
	299	treeE->SetBranchStatus("*",1);
	300	TTree *treeENew = treeE->CloneTree();
	301	treeENew->Write();
	302
	303	// copy AliceGeom
	304	TGeometry AliceGeom = static_cast<TGeometry>(cwd->Get("AliceGeom"));
	305	if (!AliceGeom) {
	306	cerr<<"AliceGeom was not found in the input file "<<endl;
	307	abort() ;
	308	}
	309	AliceGeom->Write();
	310	cwd->cd() ;
	311	gAlice->MakeTree("S",splitFile);
	312	cout << "INFO: AliPHOSSDigitizer::SetSPlitMode -> SDigits will be stored in " << splitFileName.Data() << endl ;
	313	}
	314
990119d6	315	//__________________________________________________________________
a4e98857	316	void AliPHOSSDigitizer::Print(Option_t* option)const
	317	{
	318	// Prints parameters of SDigitizer
990119d6	319	cout << "------------------- "<< GetName() << " -------------" << endl ;
7a9d98f9	320	cout << " Writing SDigits to branch with title " << GetName() << endl ;
7acf6008	321	cout << " with digitization parameters A = " << fA << endl ;
	322	cout << " B = " << fB << endl ;
	323	cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
990119d6	324	cout << "---------------------------------------------------"<<endl ;
7acf6008	325
990119d6	326	}
990119d6	327	//__________________________________________________________________
a4e98857	328	Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
a4e98857	329	{
3de072dc	330	// Equal operator.
	331	// SDititizers are equal if their pedestal, slope and threshold are equal
	332
990119d6	333	if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
	334	return kTRUE ;
	335	else
	336	return kFALSE ;
	337	}
7acf6008	338	//__________________________________________________________________
a6eedfad	339	//__________________________________________________________________
a4e98857	340	void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
	341	{
	342	// Prints list of digits produced in the current pass of AliPHOSDigitizer
7b7c1533	343
a6eedfad	344
7b7c1533	345	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	346	TString sdname(GetName()) ;
5ad40cd6	347	sdname.Remove(sdname.Index(GetTitle())-1) ;
017addb3	348	const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	349
a6eedfad	350	cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ;
a6eedfad	351	cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
7acf6008	352	cout << endl ;
a6eedfad	353	if(strstr(option,"all")\|\|strstr(option,"EMC")){
7acf6008	354
	355	//loop over digits
	356	AliPHOSDigit * digit;
a6eedfad	357	cout << "EMC sdigits " << endl ;
	358	cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
	359	Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
7acf6008	360	Int_t index ;
a6eedfad	361	for (index = 0 ; (index < sdigits->GetEntriesFast()) &&
a6eedfad	362	(((AliPHOSDigit * ) sdigits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533	363	digit = (AliPHOSDigit * ) sdigits->At(index) ;
a6eedfad	364	if(digit->GetNprimary() == 0) continue;
	365	cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
	366	<< setw(6) << digit->GetIndexInList() << " "
	367	<< setw(5) << digit->GetNprimary() <<" ";
7acf6008	368
	369	Int_t iprimary;
	370	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
a6eedfad	371	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
7acf6008	372	cout << endl;
a6eedfad	373	}
	374	cout << endl;
	375	}
	376
	377	if(strstr(option,"all")\|\|strstr(option,"CPV")){
7acf6008	378
a6eedfad	379	//loop over CPV digits
	380	AliPHOSDigit * digit;
	381	cout << "CPV sdigits " << endl ;
	382	cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
	383	Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
	384	Int_t index ;
	385	for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
	386	digit = (AliPHOSDigit * ) sdigits->At(index) ;
	387	if(digit->GetId() > maxEmc){
	388	cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
	389	<< setw(6) << digit->GetIndexInList() << " "
	390	<< setw(5) << digit->GetNprimary() <<" ";
	391
	392	Int_t iprimary;
	393	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
	394	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
	395	cout << endl;
	396	}
	397	}
7acf6008	398	}
a6eedfad	399
7acf6008	400	}
7b7c1533	401
	402	//____________________________________________________________________________
	403	void AliPHOSSDigitizer::UseHitsFrom(const char * filename)
	404	{
	405	SetTitle(filename) ;
	406	Init() ;
	407	}