[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
  InitParameters() ;
  fDefaultInit = kTRUE ; 
}

//____________________________________________________________________________ 
AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile)
{
  // ctor
  InitParameters() ; 
  Init();
  fDefaultInit = kFALSE ; 
}

//____________________________________________________________________________ 
AliPHOSSDigitizer::~AliPHOSSDigitizer()
{
  // dtor
  // fDefaultInit = kTRUE if SDigitizer created by default ctor (to get just the parameters)

  
  if (!fDefaultInit) {
    AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; 
    
    // remove the task from the folder list
    gime->RemoveTask("S",GetName()) ;
    
    TString name(GetName()) ; 
    if (! name.IsNull() ) 
      name.Remove(name.Index(":")) ; 
    
    // remove the Hits from the folder list
    gime->RemoveObjects("H",name) ;
    
    // remove the SDigits from the folder list
    gime->RemoveObjects("S", name) ;
    
    // Delete gAlice
    gime->CloseFile() ; 
    
  }
  fSplitFile = 0 ; 
}

//____________________________________________________________________________ 
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::InitParameters()
{ 
  fA             = 0;
  fB             = 10000000.;
  fPrimThreshold = 0.01 ;
  fSDigitsInRun  = 0 ;
  fSplitFile     = 0 ; 
}

//____________________________________________________________________________
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(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() ; 
  gAlice->Write(0, TObject::kOverwrite);
  
  TTree *treeE  = gAlice->TreeE();
  if (!treeE) {
    cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
    abort() ;
  }      
  
  // copy TreeE
    AliHeader *header = new AliHeader();
    treeE->SetBranchAddress("Header", &header);
    treeE->SetBranchStatus("*",1);
    TTree *treeENew =  treeE->CloneTree();
    treeENew->Write(0, TObject::kOverwrite);
  

  // copy 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(0, TObject::kOverwrite);

  gAlice->MakeTree("S",fSplitFile);
  cwd->cd() ; 
  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
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	//____________________________________________________________________________
8d0f3f77	80	AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","") {
990119d6	81	// ctor
92f521a9	82	InitParameters() ;
92f521a9	83	fDefaultInit = kTRUE ;
990119d6	84	}
7acf6008	85
990119d6	86	//____________________________________________________________________________
7b7c1533	87	AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile)
990119d6	88	{
990119d6	89	// ctor
8d0f3f77	90	InitParameters() ;
2bd5457f	91	Init();
92f521a9	92	fDefaultInit = kFALSE ;
990119d6	93	}
990119d6	94
c093f031	95	//____________________________________________________________________________
	96	AliPHOSSDigitizer::~AliPHOSSDigitizer()
	97	{
79bb1b62	98	// dtor
92f521a9	99	// fDefaultInit = kTRUE if SDigitizer created by default ctor (to get just the parameters)
6f51f90b	100
79bb1b62	101
92f521a9	102	if (!fDefaultInit) {
	103	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
	104
8d0f3f77	105	// remove the task from the folder list
	106	gime->RemoveTask("S",GetName()) ;
	107
	108	TString name(GetName()) ;
	109	if (! name.IsNull() )
	110	name.Remove(name.Index(":")) ;
	111
	112	// remove the Hits from the folder list
	113	gime->RemoveObjects("H",name) ;
	114
	115	// remove the SDigits from the folder list
	116	gime->RemoveObjects("S", name) ;
	117
	118	// Delete gAlice
	119	gime->CloseFile() ;
	120
	121	}
	122	fSplitFile = 0 ;
c093f031	123	}
7b7c1533	124
7acf6008	125	//____________________________________________________________________________
a4e98857	126	void AliPHOSSDigitizer::Init()
a4e98857	127	{
2bd5457f	128	// Initialization: open root-file, allocate arrays for hits and sdigits,
	129	// attach task SDigitizer to the list of PHOS tasks
	130	//
a4e98857	131	// Initialization can not be done in the default constructor
7b7c1533	132	//============================================================= YS
	133	// The initialisation is now done by AliPHOSGetter
	134
	135	if( strcmp(GetTitle(), "") == 0 )
	136	SetTitle("galice.root") ;
85f78bbc	137
7b7c1533	138	AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
	139	if ( gime == 0 ) {
	140	cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
	141	return ;
	142	}
	143
5ad40cd6	144	gime->PostSDigits( GetName(), GetTitle() ) ;
	145
	146	TString sdname(GetName() );
	147	sdname.Append(":") ;
	148	sdname.Append(GetTitle() ) ;
	149	SetName(sdname) ;
	150	gime->PostSDigitizer(this) ;
7acf6008	151	}
7b7c1533	152
8d0f3f77	153	//____________________________________________________________________________
	154	void AliPHOSSDigitizer::InitParameters()
	155	{
	156	fA = 0;
	157	fB = 10000000.;
	158	fPrimThreshold = 0.01 ;
	159	fSDigitsInRun = 0 ;
	160	fSplitFile = 0 ;
	161	}
	162
990119d6	163	//____________________________________________________________________________
a4e98857	164	void AliPHOSSDigitizer::Exec(Option_t *option)
	165	{
	166	// Collects all hits in the same active volume into digit
7b7c1533	167	if( strcmp(GetName(), "") == 0 )
7acf6008	168	Init() ;
7b7c1533	169
	170	if (strstr(option, "print") ) {
	171	Print("") ;
	172	return ;
	173	}
990119d6	174
7acf6008	175	if(strstr(option,"tim"))
7acf6008	176	gBenchmark->Start("PHOSSDigitizer");
7b7c1533	177
7b7c1533	178	//Check, if this branch already exits
5ad40cd6	179	gAlice->GetEvent(0) ;
a2d8b8a4	180
	181	TString sdname(GetName()) ;
	182	sdname.Remove(sdname.Index(GetTitle())-1) ;
	183
5ad40cd6	184	if(gAlice->TreeS() ) {
7a9d98f9	185	TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
5ad40cd6	186	TIter next(lob) ;
	187	TBranch * branch = 0 ;
	188	Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
7b7c1533	189
7a9d98f9	190	while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound \|\| !sdigitizerfound) ) {
c093f031	191	TString thisName( GetName() ) ;
	192	TString branchName( branch->GetTitle() ) ;
	193	branchName.Append(":") ;
	194	if ( (strcmp(branch->GetName(), "PHOS")==0) && thisName.BeginsWith(branchName) )
5ad40cd6	195	phosfound = kTRUE ;
c093f031	196	else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && thisName.BeginsWith(branchName) )
5ad40cd6	197	sdigitizerfound = kTRUE ;
	198	}
	199
	200	if ( phosfound \|\| sdigitizerfound ) {
	201	cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
	202	<< " already exits" << endl ;
	203	return ;
	204	}
	205	}
7b7c1533	206
7b7c1533	207	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7b7c1533	208
7b7c1533	209	Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
990119d6	210
990119d6	211	Int_t ievent ;
7b7c1533	212	for(ievent = 0; ievent < nevents; ievent++){
5ad40cd6	213	gime->Event(ievent,"H") ;
017addb3	214	const TClonesArray * hits = gime->Hits() ;
5ad40cd6	215	TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	216	sdigits->Clear();
990119d6	217	Int_t nSdigits = 0 ;
990119d6	218
990119d6	219
7b7c1533	220	//Now make SDigits from hits, for PHOS it is the same, so just copy
c093f031	221
3962b6a1	222	Int_t Nprim = (Int_t) (gAlice->TreeH())->GetEntries();
	223	// Attention Nprim is the number of primaries tracked by Geant and this number could be different to the number of Primaries in TreeK;
	224	Int_t iprim;
	225	for (iprim=0; iprim<Nprim; iprim++) {
	226	//=========== Get the PHOS branch from Hits Tree for the Primary iprim
	227	gime->Track(iprim) ;
990119d6	228	Int_t i;
7b7c1533	229	for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
7a9d98f9	230	AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ;
990119d6	231	// Assign primary number only if contribution is significant
9688c1dd	232
990119d6	233	if( hit->GetEnergy() > fPrimThreshold)
9688c1dd	234	new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(),
9688c1dd	235	Digitize(hit->GetEnergy()), hit->GetTime()) ;
990119d6	236	else
9688c1dd	237	new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(),
	238	Digitize(hit->GetEnergy()), hit->GetTime()) ;
	239	nSdigits++ ;
990119d6	240
9688c1dd	241	}
c093f031	242
3962b6a1	243	} // loop over iprim
990119d6	244
7b7c1533	245	sdigits->Sort() ;
990119d6	246
7b7c1533	247	nSdigits = sdigits->GetEntriesFast() ;
69866bef	248	fSDigitsInRun += nSdigits ;
7b7c1533	249	sdigits->Expand(nSdigits) ;
c093f031	250
3962b6a1	251	Int_t i ;
990119d6	252	for (i = 0 ; i < nSdigits ; i++) {
7a9d98f9	253	AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ;
990119d6	254	digit->SetIndexInList(i) ;
990119d6	255	}
3962b6a1	256
106fc2fa	257	if(gAlice->TreeS() == 0)
85f78bbc	258	gAlice->MakeTree("S", fSplitFile);
c093f031	259
7acf6008	260	//First list of sdigits
7acf6008	261	Int_t bufferSize = 32000 ;
7b7c1533	262	TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
5ad40cd6	263	sdigitsBranch->SetTitle(sdname);
7acf6008	264
7b7c1533	265	//Next - SDigitizer
7acf6008	266	Int_t splitlevel = 0 ;
7acf6008	267	AliPHOSSDigitizer * sd = this ;
7b7c1533	268	TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
7acf6008	269	&sd,bufferSize,splitlevel);
5ad40cd6	270	sdigitizerBranch->SetTitle(sdname);
c093f031	271
42d2745f	272	sdigitsBranch->Fill() ;
c093f031	273	sdigitizerBranch->Fill() ;
42d2745f	274	gAlice->TreeS()->AutoSave() ;
7acf6008	275
	276	if(strstr(option,"deb"))
	277	PrintSDigits(option) ;
c093f031	278
990119d6	279	}
c093f031	280
7acf6008	281	if(strstr(option,"tim")){
	282	gBenchmark->Stop("PHOSSDigitizer");
	283	cout << "AliPHOSSDigitizer:" << endl ;
	284	cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
7b7c1533	285	<< gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
7acf6008	286	cout << endl ;
	287	}
	288
	289
990119d6	290	}
106fc2fa	291
990119d6	292	//__________________________________________________________________
a4e98857	293	void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
	294	{
	295	// Setting title to branch SDigits
7b7c1533	296
	297	TString stitle(title) ;
	298
	299	// check if branch with title already exists
7a9d98f9	300	TBranch * sdigitsBranch =
	301	static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ;
	302	TBranch * sdigitizerBranch =
	303	static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ;
7b7c1533	304	const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
	305	const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
	306	if ( stitle.CompareTo(sdigitsTitle)==0 \|\| stitle.CompareTo(sdigitizerTitle)==0 ){
	307	cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
	308	return ;
	309	}
	310
	311	cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
	312
	313	SetName(title) ;
	314
	315	// Post to the WhiteBoard
	316	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	317	gime->PostSDigits( title, GetTitle()) ;
990119d6	318	}
7b7c1533	319
106fc2fa	320	//__________________________________________________________________
c093f031	321	void AliPHOSSDigitizer::SetSplitFile(const TString splitFileName)
106fc2fa	322	{
	323	// Diverts the SDigits in a file separate from the hits file
	324
	325	TDirectory * cwd = gDirectory ;
c093f031	326
	327	if ( !(gAlice->GetTreeSFileName() == splitFileName) ) {
	328	if (gAlice->GetTreeSFile() )
	329	gAlice->GetTreeSFile()->Close() ;
	330	}
	331
	332	fSplitFile = gAlice->InitTreeFile("S",splitFileName.Data());
	333	fSplitFile->cd() ;
8d0f3f77	334	gAlice->Write(0, TObject::kOverwrite);
106fc2fa	335
	336	TTree *treeE = gAlice->TreeE();
	337	if (!treeE) {
c093f031	338	cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
106fc2fa	339	abort() ;
	340	}
	341
	342	// copy TreeE
c093f031	343	AliHeader *header = new AliHeader();
	344	treeE->SetBranchAddress("Header", &header);
	345	treeE->SetBranchStatus("*",1);
	346	TTree *treeENew = treeE->CloneTree();
8d0f3f77	347	treeENew->Write(0, TObject::kOverwrite);
8d0f3f77	348
c093f031	349
106fc2fa	350	// copy AliceGeom
c093f031	351	TGeometry AliceGeom = static_cast<TGeometry>(cwd->Get("AliceGeom"));
	352	if (!AliceGeom) {
	353	cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> AliceGeom was not found in the input file "<<endl;
	354	abort() ;
	355	}
8d0f3f77	356	AliceGeom->Write(0, TObject::kOverwrite);
c093f031	357
c093f031	358	gAlice->MakeTree("S",fSplitFile);
85f78bbc	359	cwd->cd() ;
6f51f90b	360	cout << "INFO: AliPHOSSDigitizer::SetSPlitMode -> SDigits will be stored in " << splitFileName.Data() << endl ;
8d0f3f77	361
106fc2fa	362	}
106fc2fa	363
990119d6	364	//__________________________________________________________________
a4e98857	365	void AliPHOSSDigitizer::Print(Option_t* option)const
	366	{
	367	// Prints parameters of SDigitizer
990119d6	368	cout << "------------------- "<< GetName() << " -------------" << endl ;
7a9d98f9	369	cout << " Writing SDigits to branch with title " << GetName() << endl ;
7acf6008	370	cout << " with digitization parameters A = " << fA << endl ;
	371	cout << " B = " << fB << endl ;
	372	cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
990119d6	373	cout << "---------------------------------------------------"<<endl ;
7acf6008	374
990119d6	375	}
990119d6	376	//__________________________________________________________________
a4e98857	377	Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
a4e98857	378	{
3de072dc	379	// Equal operator.
	380	// SDititizers are equal if their pedestal, slope and threshold are equal
	381
990119d6	382	if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
	383	return kTRUE ;
	384	else
	385	return kFALSE ;
	386	}
7acf6008	387	//__________________________________________________________________
a6eedfad	388	//__________________________________________________________________
a4e98857	389	void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
	390	{
	391	// Prints list of digits produced in the current pass of AliPHOSDigitizer
7b7c1533	392
a6eedfad	393
7b7c1533	394	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	395	TString sdname(GetName()) ;
5ad40cd6	396	sdname.Remove(sdname.Index(GetTitle())-1) ;
017addb3	397	const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	398
a6eedfad	399	cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ;
a6eedfad	400	cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
7acf6008	401	cout << endl ;
a6eedfad	402	if(strstr(option,"all")\|\|strstr(option,"EMC")){
7acf6008	403
	404	//loop over digits
	405	AliPHOSDigit * digit;
a6eedfad	406	cout << "EMC sdigits " << endl ;
	407	cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
	408	Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
7acf6008	409	Int_t index ;
a6eedfad	410	for (index = 0 ; (index < sdigits->GetEntriesFast()) &&
a6eedfad	411	(((AliPHOSDigit * ) sdigits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533	412	digit = (AliPHOSDigit * ) sdigits->At(index) ;
a6eedfad	413	if(digit->GetNprimary() == 0) continue;
	414	cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
	415	<< setw(6) << digit->GetIndexInList() << " "
	416	<< setw(5) << digit->GetNprimary() <<" ";
7acf6008	417
	418	Int_t iprimary;
	419	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
a6eedfad	420	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
7acf6008	421	cout << endl;
a6eedfad	422	}
	423	cout << endl;
	424	}
	425
	426	if(strstr(option,"all")\|\|strstr(option,"CPV")){
7acf6008	427
a6eedfad	428	//loop over CPV digits
	429	AliPHOSDigit * digit;
	430	cout << "CPV sdigits " << endl ;
	431	cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
	432	Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
	433	Int_t index ;
	434	for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
	435	digit = (AliPHOSDigit * ) sdigits->At(index) ;
	436	if(digit->GetId() > maxEmc){
	437	cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
	438	<< setw(6) << digit->GetIndexInList() << " "
	439	<< setw(5) << digit->GetNprimary() <<" ";
	440
	441	Int_t iprimary;
	442	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
	443	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
	444	cout << endl;
	445	}
	446	}
7acf6008	447	}
a6eedfad	448
7acf6008	449	}
7b7c1533	450
	451	//____________________________________________________________________________
	452	void AliPHOSSDigitizer::UseHitsFrom(const char * filename)
	453	{
	454	SetTitle(filename) ;
	455	Init() ;
	456	}