[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() ; 
  AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; 
 // Close the root file
  gime->CloseFile() ; 

 // remove the task from the folder list
  gime->RemoveTask("S",GetName()) ;

  TString name(GetName()) ; 
  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) ;
}

//____________________________________________________________________________ 
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() ; 
  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	//____________________________________________________________________________
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() ;
303492aa	108	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
6f51f90b	109	// Close the root file
303492aa	110	gime->CloseFile() ;
6f51f90b	111
	112	// remove the task from the folder list
	113	gime->RemoveTask("S",GetName()) ;
	114
	115	TString name(GetName()) ;
	116	name.Remove(name.Index(":")) ;
	117
	118	// remove the Hits from the folder list
	119	gime->RemoveObjects("H",name) ;
	120
	121	// remove the SDigits from the folder list
	122	gime->RemoveObjects("S", name) ;
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
990119d6	153	//____________________________________________________________________________
a4e98857	154	void AliPHOSSDigitizer::Exec(Option_t *option)
	155	{
	156	// Collects all hits in the same active volume into digit
7b7c1533	157	if( strcmp(GetName(), "") == 0 )
7acf6008	158	Init() ;
7b7c1533	159
	160	if (strstr(option, "print") ) {
	161	Print("") ;
	162	return ;
	163	}
990119d6	164
7acf6008	165	if(strstr(option,"tim"))
7acf6008	166	gBenchmark->Start("PHOSSDigitizer");
7b7c1533	167
7b7c1533	168	//Check, if this branch already exits
5ad40cd6	169	gAlice->GetEvent(0) ;
a2d8b8a4	170
	171	TString sdname(GetName()) ;
	172	sdname.Remove(sdname.Index(GetTitle())-1) ;
	173
5ad40cd6	174	if(gAlice->TreeS() ) {
7a9d98f9	175	TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
5ad40cd6	176	TIter next(lob) ;
	177	TBranch * branch = 0 ;
	178	Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
7b7c1533	179
7a9d98f9	180	while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound \|\| !sdigitizerfound) ) {
c093f031	181	TString thisName( GetName() ) ;
	182	TString branchName( branch->GetTitle() ) ;
	183	branchName.Append(":") ;
	184	if ( (strcmp(branch->GetName(), "PHOS")==0) && thisName.BeginsWith(branchName) )
5ad40cd6	185	phosfound = kTRUE ;
c093f031	186	else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && thisName.BeginsWith(branchName) )
5ad40cd6	187	sdigitizerfound = kTRUE ;
	188	}
	189
	190	if ( phosfound \|\| sdigitizerfound ) {
	191	cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
	192	<< " already exits" << endl ;
	193	return ;
	194	}
	195	}
7b7c1533	196
7b7c1533	197	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7b7c1533	198
7b7c1533	199	Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
990119d6	200
990119d6	201	Int_t ievent ;
7b7c1533	202	for(ievent = 0; ievent < nevents; ievent++){
5ad40cd6	203	gime->Event(ievent,"H") ;
017addb3	204	const TClonesArray * hits = gime->Hits() ;
5ad40cd6	205	TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	206	sdigits->Clear();
990119d6	207	Int_t nSdigits = 0 ;
990119d6	208
990119d6	209
7b7c1533	210	//Now make SDigits from hits, for PHOS it is the same, so just copy
c093f031	211
3962b6a1	212	Int_t Nprim = (Int_t) (gAlice->TreeH())->GetEntries();
	213	// Attention Nprim is the number of primaries tracked by Geant and this number could be different to the number of Primaries in TreeK;
	214	Int_t iprim;
	215	for (iprim=0; iprim<Nprim; iprim++) {
	216	//=========== Get the PHOS branch from Hits Tree for the Primary iprim
	217	gime->Track(iprim) ;
990119d6	218	Int_t i;
7b7c1533	219	for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
7a9d98f9	220	AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ;
990119d6	221	// Assign primary number only if contribution is significant
9688c1dd	222
990119d6	223	if( hit->GetEnergy() > fPrimThreshold)
9688c1dd	224	new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(),
9688c1dd	225	Digitize(hit->GetEnergy()), hit->GetTime()) ;
990119d6	226	else
9688c1dd	227	new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(),
	228	Digitize(hit->GetEnergy()), hit->GetTime()) ;
	229	nSdigits++ ;
990119d6	230
9688c1dd	231	}
c093f031	232
3962b6a1	233	} // loop over iprim
990119d6	234
7b7c1533	235	sdigits->Sort() ;
990119d6	236
7b7c1533	237	nSdigits = sdigits->GetEntriesFast() ;
69866bef	238	fSDigitsInRun += nSdigits ;
7b7c1533	239	sdigits->Expand(nSdigits) ;
c093f031	240
3962b6a1	241	Int_t i ;
990119d6	242	for (i = 0 ; i < nSdigits ; i++) {
7a9d98f9	243	AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ;
990119d6	244	digit->SetIndexInList(i) ;
990119d6	245	}
3962b6a1	246
106fc2fa	247	if(gAlice->TreeS() == 0)
85f78bbc	248	gAlice->MakeTree("S", fSplitFile);
c093f031	249
7acf6008	250	//First list of sdigits
7acf6008	251	Int_t bufferSize = 32000 ;
7b7c1533	252	TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
5ad40cd6	253	sdigitsBranch->SetTitle(sdname);
7acf6008	254
7b7c1533	255	//Next - SDigitizer
7acf6008	256	Int_t splitlevel = 0 ;
7acf6008	257	AliPHOSSDigitizer * sd = this ;
7b7c1533	258	TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
7acf6008	259	&sd,bufferSize,splitlevel);
5ad40cd6	260	sdigitizerBranch->SetTitle(sdname);
c093f031	261
42d2745f	262	sdigitsBranch->Fill() ;
c093f031	263	sdigitizerBranch->Fill() ;
42d2745f	264	gAlice->TreeS()->AutoSave() ;
7acf6008	265
	266	if(strstr(option,"deb"))
	267	PrintSDigits(option) ;
c093f031	268
990119d6	269	}
c093f031	270
	271	if (fSplitFile)
	272	if ( fSplitFile->IsOpen() )
	273	fSplitFile->Close() ;
7acf6008	274
c093f031	275
7acf6008	276	if(strstr(option,"tim")){
	277	gBenchmark->Stop("PHOSSDigitizer");
	278	cout << "AliPHOSSDigitizer:" << endl ;
	279	cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
7b7c1533	280	<< gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
7acf6008	281	cout << endl ;
	282	}
	283
	284
990119d6	285	}
106fc2fa	286
990119d6	287	//__________________________________________________________________
a4e98857	288	void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
	289	{
	290	// Setting title to branch SDigits
7b7c1533	291
	292	TString stitle(title) ;
	293
	294	// check if branch with title already exists
7a9d98f9	295	TBranch * sdigitsBranch =
	296	static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ;
	297	TBranch * sdigitizerBranch =
	298	static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ;
7b7c1533	299	const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
	300	const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
	301	if ( stitle.CompareTo(sdigitsTitle)==0 \|\| stitle.CompareTo(sdigitizerTitle)==0 ){
	302	cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
	303	return ;
	304	}
	305
	306	cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
	307
	308	SetName(title) ;
	309
	310	// Post to the WhiteBoard
	311	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	312	gime->PostSDigits( title, GetTitle()) ;
990119d6	313	}
7b7c1533	314
106fc2fa	315	//__________________________________________________________________
c093f031	316	void AliPHOSSDigitizer::SetSplitFile(const TString splitFileName)
106fc2fa	317	{
	318	// Diverts the SDigits in a file separate from the hits file
	319
	320	TDirectory * cwd = gDirectory ;
c093f031	321
	322	if ( !(gAlice->GetTreeSFileName() == splitFileName) ) {
	323	if (gAlice->GetTreeSFile() )
	324	gAlice->GetTreeSFile()->Close() ;
	325	}
	326
	327	fSplitFile = gAlice->InitTreeFile("S",splitFileName.Data());
	328	fSplitFile->cd() ;
	329	if ( !fSplitFile->Get("gAlice") )
	330	gAlice->Write();
106fc2fa	331
	332	TTree *treeE = gAlice->TreeE();
	333	if (!treeE) {
c093f031	334	cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
106fc2fa	335	abort() ;
	336	}
	337
	338	// copy TreeE
c093f031	339	if ( !fSplitFile->Get("TreeE") ) {
	340	AliHeader *header = new AliHeader();
	341	treeE->SetBranchAddress("Header", &header);
	342	treeE->SetBranchStatus("*",1);
	343	TTree *treeENew = treeE->CloneTree();
	344	treeENew->Write();
	345	}
	346
106fc2fa	347	// copy AliceGeom
c093f031	348	if ( !fSplitFile->Get("AliceGeom") ) {
	349	TGeometry AliceGeom = static_cast<TGeometry>(cwd->Get("AliceGeom"));
	350	if (!AliceGeom) {
	351	cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> AliceGeom was not found in the input file "<<endl;
	352	abort() ;
	353	}
	354	AliceGeom->Write();
106fc2fa	355	}
c093f031	356
c093f031	357	gAlice->MakeTree("S",fSplitFile);
85f78bbc	358	cwd->cd() ;
6f51f90b	359	cout << "INFO: AliPHOSSDigitizer::SetSPlitMode -> SDigits will be stored in " << splitFileName.Data() << endl ;
106fc2fa	360	}
106fc2fa	361
990119d6	362	//__________________________________________________________________
a4e98857	363	void AliPHOSSDigitizer::Print(Option_t* option)const
	364	{
	365	// Prints parameters of SDigitizer
990119d6	366	cout << "------------------- "<< GetName() << " -------------" << endl ;
7a9d98f9	367	cout << " Writing SDigits to branch with title " << GetName() << endl ;
7acf6008	368	cout << " with digitization parameters A = " << fA << endl ;
	369	cout << " B = " << fB << endl ;
	370	cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
990119d6	371	cout << "---------------------------------------------------"<<endl ;
7acf6008	372
990119d6	373	}
990119d6	374	//__________________________________________________________________
a4e98857	375	Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
a4e98857	376	{
3de072dc	377	// Equal operator.
	378	// SDititizers are equal if their pedestal, slope and threshold are equal
	379
990119d6	380	if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
	381	return kTRUE ;
	382	else
	383	return kFALSE ;
	384	}
7acf6008	385	//__________________________________________________________________
a6eedfad	386	//__________________________________________________________________
a4e98857	387	void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
	388	{
	389	// Prints list of digits produced in the current pass of AliPHOSDigitizer
7b7c1533	390
a6eedfad	391
7b7c1533	392	AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6	393	TString sdname(GetName()) ;
5ad40cd6	394	sdname.Remove(sdname.Index(GetTitle())-1) ;
017addb3	395	const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533	396
a6eedfad	397	cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ;
a6eedfad	398	cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
7acf6008	399	cout << endl ;
a6eedfad	400	if(strstr(option,"all")\|\|strstr(option,"EMC")){
7acf6008	401
	402	//loop over digits
	403	AliPHOSDigit * digit;
a6eedfad	404	cout << "EMC sdigits " << endl ;
	405	cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
	406	Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
7acf6008	407	Int_t index ;
a6eedfad	408	for (index = 0 ; (index < sdigits->GetEntriesFast()) &&
a6eedfad	409	(((AliPHOSDigit * ) sdigits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533	410	digit = (AliPHOSDigit * ) sdigits->At(index) ;
a6eedfad	411	if(digit->GetNprimary() == 0) continue;
	412	cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
	413	<< setw(6) << digit->GetIndexInList() << " "
	414	<< setw(5) << digit->GetNprimary() <<" ";
7acf6008	415
	416	Int_t iprimary;
	417	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
a6eedfad	418	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
7acf6008	419	cout << endl;
a6eedfad	420	}
	421	cout << endl;
	422	}
	423
	424	if(strstr(option,"all")\|\|strstr(option,"CPV")){
7acf6008	425
a6eedfad	426	//loop over CPV digits
	427	AliPHOSDigit * digit;
	428	cout << "CPV sdigits " << endl ;
	429	cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
	430	Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
	431	Int_t index ;
	432	for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
	433	digit = (AliPHOSDigit * ) sdigits->At(index) ;
	434	if(digit->GetId() > maxEmc){
	435	cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
	436	<< setw(6) << digit->GetIndexInList() << " "
	437	<< setw(5) << digit->GetNprimary() <<" ";
	438
	439	Int_t iprimary;
	440	for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
	441	cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
	442	cout << endl;
	443	}
	444	}
7acf6008	445	}
a6eedfad	446
7acf6008	447	}
7b7c1533	448
	449	//____________________________________________________________________________
	450	void AliPHOSSDigitizer::UseHitsFrom(const char * filename)
	451	{
	452	SetTitle(filename) ;
	453	Init() ;
	454	}