new correlation functions for non-id HBT added
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALDigitizer.cxx
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61e0abb5 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//_________________________________________________________________________
ffa6d63b 19//
61e0abb5 20//////////////////////////////////////////////////////////////////////////////
ffa6d63b 21// Class performs digitization of Summable digits
22//
61e0abb5 23// In addition it performs mixing of summable digits from different events.
24//
25// For each event two branches are created in TreeD:
26// "EMCAL" - list of digits
27// "AliEMCALDigitizer" - AliEMCALDigitizer with all parameters used in digitization
28//
29// Note, that one cset title for new digits branch, and repeat digitization with
30// another set of parameters.
31//
32// Examples of use:
33// root[0] AliEMCALDigitizer * d = new AliEMCALDigitizer() ;
34// root[1] d->ExecuteTask()
35// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
36// //Digitizes SDigitis in all events found in file galice.root
37//
38// root[2] AliEMCALDigitizer * d1 = new AliEMCALDigitizer("galice1.root") ;
39// // Will read sdigits from galice1.root
40// root[3] d1->MixWith("galice2.root")
41// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
42// // Reads another portion of sdigits from galice2.root
43// root[3] d1->MixWith("galice3.root")
44// // Reads another portion of sdigits from galice3.root
45// root[4] d->ExecuteTask("deb timing")
46// // Reads SDigits from files galice1.root, galice2.root ....
47// // mixes them and stores produced Digits in file galice1.root
48// // deb - prints number of produced digits
49// // deb all - prints list of produced digits
50// // timing - prints time used for digitization
ffa6d63b 51////////////////////////////////////////////////////////////////////////////////////
61e0abb5 52//
ffa6d63b 53//*-- Author: Sahal Yacoob (LBL)
814ad4bf 54// based on : AliEMCALDigitizer
05a92d59 55// Modif:
56// August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction
57// of new IO (à la PHOS)
58///_________________________________________________________________________________
61e0abb5 59
60// --- ROOT system ---
61e0abb5 61#include "TTree.h"
62#include "TSystem.h"
61e0abb5 63#include "TBenchmark.h"
05a92d59 64
61e0abb5 65// --- Standard library ---
61e0abb5 66
67// --- AliRoot header files ---
ea5f3389 68#include "AliRunDigitizer.h"
61e0abb5 69#include "AliEMCALDigit.h"
05a92d59 70#include "AliEMCAL.h"
71#include "AliEMCALGetter.h"
61e0abb5 72#include "AliEMCALDigitizer.h"
73#include "AliEMCALSDigitizer.h"
74#include "AliEMCALGeometry.h"
05a92d59 75#include "AliEMCALTick.h"
76
61e0abb5 77ClassImp(AliEMCALDigitizer)
78
79
80//____________________________________________________________________________
88cb7938 81 AliEMCALDigitizer::AliEMCALDigitizer():AliDigitizer("",""),
82 fInput(0),
83 fInputFileNames(0x0),
84 fEventNames(0x0)
61e0abb5 85{
86 // ctor
88cb7938 87 InitParameters() ;
92f521a9 88 fDefaultInit = kTRUE ;
05a92d59 89 fManager = 0 ; // We work in the standalong mode
88cb7938 90 fEventFolderName = "" ;
839828a6 91}
61e0abb5 92
839828a6 93//____________________________________________________________________________
09884213 94AliEMCALDigitizer::AliEMCALDigitizer(TString alirunFileName, TString eventFolderName):
e191bb57 95 AliDigitizer("EMCAL"+AliConfig::Instance()->GetDigitizerTaskName(), alirunFileName),
88cb7938 96 fInputFileNames(0), fEventNames(0), fEventFolderName(eventFolderName)
839828a6 97{
05a92d59 98 // ctor
99
a9485c37 100 InitParameters() ;
88cb7938 101 Init() ;
92f521a9 102 fDefaultInit = kFALSE ;
88cb7938 103 fManager = 0 ; // We work in the standalong mode
61e0abb5 104}
839828a6 105
61e0abb5 106//____________________________________________________________________________
9e5d2067 107AliEMCALDigitizer::AliEMCALDigitizer(const AliEMCALDigitizer & d) : AliDigitizer(d)
88cb7938 108{
109 // copyy ctor
110
111 SetName(d.GetName()) ;
112 SetTitle(d.GetTitle()) ;
113 fDigitThreshold = d.fDigitThreshold ;
114 fMeanPhotonElectron = d.fMeanPhotonElectron ;
115 fPedestal = d.fPedestal ;
116 fSlope = d.fSlope ;
117 fPinNoise = d.fPinNoise ;
118 fTimeResolution = d.fTimeResolution ;
119 fTimeThreshold = d.fTimeThreshold ;
120 fTimeSignalLength = d.fTimeSignalLength ;
121 fADCchannelEC = d.fADCchannelEC ;
122 fADCpedestalEC = d.fADCpedestalEC ;
123 fNADCEC = d.fNADCEC ;
88cb7938 124 fEventFolderName = d.fEventFolderName;
125 }
126
127//____________________________________________________________________________
128AliEMCALDigitizer::AliEMCALDigitizer(AliRunDigitizer * rd):
e191bb57 129 AliDigitizer(rd,"EMCAL"+AliConfig::Instance()->GetDigitizerTaskName()),
88cb7938 130 fEventFolderName(0)
61e0abb5 131{
45fa49ca 132 // ctor Init() is called by RunDigitizer
88cb7938 133 fManager = rd ;
e0e18b6d 134 fEventFolderName = fManager->GetInputFolderName(0) ;
88cb7938 135 SetTitle(dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetFileName(0));
05a92d59 136 InitParameters() ;
dafd64d0 137 fDefaultInit = kFALSE ;
839828a6 138}
814ad4bf 139
839828a6 140//____________________________________________________________________________
141 AliEMCALDigitizer::~AliEMCALDigitizer()
142{
797e311f 143 AliEMCALGetter * gime =AliEMCALGetter::Instance(GetTitle(),fEventFolderName);
144 gime->EmcalLoader()->CleanDigitizer();
839828a6 145
61e0abb5 146}
147
148//____________________________________________________________________________
09884213 149void AliEMCALDigitizer::Digitize(Int_t event)
05a92d59 150{
61e0abb5 151
152 // Makes the digitization of the collected summable digits
153 // for this it first creates the array of all EMCAL modules
154 // filled with noise (different for EMC, CPV and PPSD) and
155 // after that adds contributions from SDigits. This design
156 // helps to avoid scanning over the list of digits to add
157 // contribution of any new SDigit.
158
88cb7938 159 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
45fa49ca 160 Int_t ReadEvent = event ;
161 if (fManager)
162 ReadEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetCurrentEventNumber() ;
b67f6b2d 163 Info("Digitize", "Adding event %d from input stream 0 %s %s", ReadEvent, GetTitle(), fEventFolderName.Data()) ;
45fa49ca 164 gime->Event(ReadEvent, "S") ;
88cb7938 165 TClonesArray * digits = gime->Digits() ;
814ad4bf 166 digits->Clear() ;
61e0abb5 167
05a92d59 168 const AliEMCALGeometry *geom = gime->EMCALGeometry() ;
fdebddeb 169
b7de6a56 170 Int_t nEMC = geom->GetNPhi()*geom->GetNZ(); //max number of digits possible
88cb7938 171
172 Int_t absID ;
61e0abb5 173
88cb7938 174 digits->Expand(nEMC) ;
05a92d59 175
88cb7938 176 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
177 if ( !gime->SDigitizer() )
178 gime->LoadSDigitizer();
179 AliEMCALSDigitizer * sDigitizer = gime->SDigitizer();
180
181 if ( !sDigitizer )
182 Fatal("Digitize", "SDigitizer with name %s %s not found", fEventFolderName.Data(), GetTitle() ) ;
183
184 //take all the inputs to add together and load the SDigits
185 TObjArray * sdigArray = new TObjArray(fInput) ;
186 sdigArray->AddAt(gime->SDigits(), 0) ;
187 Int_t i ;
188 for(i = 1 ; i < fInput ; i++){
189 TString tempo(fEventNames[i]) ;
190 tempo += i ;
191 AliEMCALGetter * gime = AliEMCALGetter::Instance(fInputFileNames[i], tempo) ;
45fa49ca 192 if (fManager)
193 ReadEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(i))->GetCurrentEventNumber() ;
b67f6b2d 194 Info("Digitize", "Adding event %d from input stream %d %s %s", ReadEvent, i, fInputFileNames[i].Data(), tempo.Data()) ;
45fa49ca 195 gime->Event(ReadEvent,"S");
88cb7938 196 sdigArray->AddAt(gime->SDigits(), i) ;
0c219753 197 }
88cb7938 198
d968cee0 199 //Find the first tower with signal
a9485c37 200 Int_t nextSig = nEMC + 1 ;
88cb7938 201 TClonesArray * sdigits ;
202 for(i = 0 ; i < fInput ; i++){
203 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
814ad4bf 204 if ( !sdigits->GetEntriesFast() )
205 continue ;
88cb7938 206 Int_t curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(0))->GetId() ;
814ad4bf 207 if(curNext < nextSig)
208 nextSig = curNext ;
209 }
61e0abb5 210
88cb7938 211 TArrayI index(fInput) ;
814ad4bf 212 index.Reset() ; //Set all indexes to zero
61e0abb5 213
05a92d59 214 AliEMCALDigit * digit ;
215 AliEMCALDigit * curSDigit ;
ffa6d63b 216
814ad4bf 217 TClonesArray * ticks = new TClonesArray("AliEMCALTick",1000) ;
ffa6d63b 218
814ad4bf 219 //Put Noise contribution
220 for(absID = 1; absID <= nEMC; absID++){
88cb7938 221 Float_t amp = 0 ;
a9485c37 222 // amplitude set to zero, noise will be added later
223 new((*digits)[absID-1]) AliEMCALDigit( -1, -1, absID, 0, TimeOfNoise() ) ;
814ad4bf 224 //look if we have to add signal?
88cb7938 225 digit = dynamic_cast<AliEMCALDigit *>(digits->At(absID-1)) ;
226
814ad4bf 227 if(absID==nextSig){
54cbf5a6 228 //Add SDigits from all inputs
814ad4bf 229 ticks->Clear() ;
230 Int_t contrib = 0 ;
231 Float_t a = digit->GetAmp() ;
232 Float_t b = TMath::Abs( a /fTimeSignalLength) ;
88cb7938 233 //Mark the beginning of the signal
814ad4bf 234 new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime(),0, b);
fdebddeb 235 //Mark the end of the signal
814ad4bf 236 new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime()+fTimeSignalLength, -a, -b);
237
88cb7938 238 // loop over input
239 for(i = 0; i< fInput ; i++){ //loop over (possible) merge sources
240 if(dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
241 curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
814ad4bf 242 else
243 curSDigit = 0 ;
244 //May be several digits will contribute from the same input
fdebddeb 245 while(curSDigit && (curSDigit->GetId() == absID)){
814ad4bf 246 //Shift primary to separate primaries belonging different inputs
247 Int_t primaryoffset ;
248 if(fManager)
249 primaryoffset = fManager->GetMask(i) ;
250 else
251 primaryoffset = i ;
252 curSDigit->ShiftPrimary(primaryoffset) ;
253
254 a = curSDigit->GetAmp() ;
255 b = a /fTimeSignalLength ;
256 new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime(),0, b);
257 new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
258
259 *digit = *digit + *curSDigit ; //add energies
260
261 index[i]++ ;
88cb7938 262 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
263 curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
814ad4bf 264 else
265 curSDigit = 0 ;
266 }
267 }
a9485c37 268 // add fluctuations for photo-electron creation
269 amp = sDigitizer->Calibrate(digit->GetAmp()) ; // GeV
a9485c37 270 amp *= static_cast<Float_t>(gRandom->Poisson(fMeanPhotonElectron)) / static_cast<Float_t>(fMeanPhotonElectron) ;
88cb7938 271
05a92d59 272 //calculate and set time
814ad4bf 273 Float_t time = FrontEdgeTime(ticks) ;
274 digit->SetTime(time) ;
275
276 //Find next signal module
a9485c37 277 nextSig = nEMC + 1 ;
88cb7938 278 for(i = 0 ; i < fInput ; i++){
279 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
814ad4bf 280 Int_t curNext = nextSig ;
281 if(sdigits->GetEntriesFast() > index[i] ){
88cb7938 282 curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i]))->GetId() ;
814ad4bf 283 }
284 if(curNext < nextSig) nextSig = curNext ;
285 }
286 }
a9485c37 287 // add the noise now
fdebddeb 288 amp += TMath::Abs(gRandom->Gaus(0., fPinNoise)) ;
a9485c37 289 digit->SetAmp(sDigitizer->Digitize(amp)) ;
814ad4bf 290 }
291
292 ticks->Delete() ;
293 delete ticks ;
61e0abb5 294
05a92d59 295 delete sdigArray ; //We should not delete its contents
61e0abb5 296
814ad4bf 297 //remove digits below thresholds
88cb7938 298 for(i = 0 ; i < nEMC ; i++){
299 digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ;
fdebddeb 300 Float_t threshold = fDigitThreshold ;
88cb7938 301 if(sDigitizer->Calibrate( digit->GetAmp() ) < threshold)
302 digits->RemoveAt(i) ;
303 else
814ad4bf 304 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
a9485c37 305 }
61e0abb5 306
814ad4bf 307 digits->Compress() ;
61e0abb5 308
05a92d59 309 Int_t ndigits = digits->GetEntriesFast() ;
88cb7938 310 digits->Expand(ndigits) ;
61e0abb5 311
814ad4bf 312 //Set indexes in list of digits
05a92d59 313 for (i = 0 ; i < ndigits ; i++) {
314 digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ;
814ad4bf 315 digit->SetIndexInList(i) ;
316 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
fdebddeb 317 digit->SetAmp(DigitizeEnergy(energy) ) ;
61e0abb5 318 }
814ad4bf 319}
61e0abb5 320
814ad4bf 321//____________________________________________________________________________
61e0abb5 322
fdebddeb 323Int_t AliEMCALDigitizer::DigitizeEnergy(Float_t energy)
814ad4bf 324{
fdebddeb 325 Int_t channel = -999;
326 channel = static_cast<Int_t> (TMath::Ceil( (energy + fADCpedestalEC)/fADCchannelEC )) ;
327 if(channel > fNADCEC )
7d74eaca 328 channel = fNADCEC ;
814ad4bf 329 return channel ;
61e0abb5 330}
331
332//____________________________________________________________________________
05a92d59 333void AliEMCALDigitizer::Exec(Option_t *option)
334{
45fa49ca 335 // Steering method to process digitization for events
336 // in the range from fFirstEvent to fLastEvent.
337 // This range is optionally set by SetEventRange().
338 // if fLastEvent=-1, then process events until the end.
339 // by default fLastEvent = fFirstEvent (process only one event)
05a92d59 340
88cb7938 341 if (!fInit) { // to prevent overwrite existing file
342 Error( "Exec", "Give a version name different from %s", fEventFolderName.Data() ) ;
343 return ;
344 }
345
814ad4bf 346 if (strstr(option,"print")) {
88cb7938 347 Print();
814ad4bf 348 return ;
349 }
350
61e0abb5 351 if(strstr(option,"tim"))
352 gBenchmark->Start("EMCALDigitizer");
814ad4bf 353
fb43ada4 354 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle()) ;
45fa49ca 355
356 if (fLastEvent == -1)
357 fLastEvent = gime->MaxEvent() - 1 ;
396a348e 358 else if (fManager)
359 fLastEvent = fFirstEvent ;
360
45fa49ca 361 Int_t nEvents = fLastEvent - fFirstEvent + 1;
05a92d59 362
814ad4bf 363 Int_t ievent ;
364
45fa49ca 365 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
366
88cb7938 367 gime->Event(ievent,"S") ;
05a92d59 368
814ad4bf 369 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
88cb7938 370
9e5d2067 371 WriteDigits() ;
88cb7938 372
61e0abb5 373 if(strstr(option,"deb"))
374 PrintDigits(option);
88cb7938 375
814ad4bf 376 //increment the total number of Digits per run
377 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
61e0abb5 378 }
814ad4bf 379
61e0abb5 380 if(strstr(option,"tim")){
381 gBenchmark->Stop("EMCALDigitizer");
fdebddeb 382 printf("Exec: took %f seconds for Digitizing %f seconds per event",
45fa49ca 383 gBenchmark->GetCpuTime("EMCALDigitizer"), gBenchmark->GetCpuTime("EMCALDigitizer")/nEvents ) ;
88cb7938 384 }
61e0abb5 385}
386
05a92d59 387//____________________________________________________________________________
388Float_t AliEMCALDigitizer::FrontEdgeTime(TClonesArray * ticks)
88cb7938 389{
390 // Returns the shortest time among all time ticks
391
05a92d59 392 ticks->Sort() ; //Sort in accordance with times of ticks
393 TIter it(ticks) ;
394 AliEMCALTick * ctick = (AliEMCALTick *) it.Next() ;
395 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
396
397 AliEMCALTick * t ;
398 while((t=(AliEMCALTick*) it.Next())){
399 if(t->GetTime() < time) //This tick starts before crossing
400 *ctick+=*t ;
401 else
402 return time ;
403
404 time = ctick->CrossingTime(fTimeThreshold) ;
405 }
406 return time ;
407}
408
409//____________________________________________________________________________
410Bool_t AliEMCALDigitizer::Init()
411{
412 // Makes all memory allocations
88cb7938 413 fInit = kTRUE ;
414 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
05a92d59 415 if ( gime == 0 ) {
88cb7938 416 Error("Init", "Could not obtain the Getter object for file %s and event %s !", GetTitle(), fEventFolderName.Data()) ;
05a92d59 417 return kFALSE;
418 }
88cb7938 419 TString opt("Digits") ;
420 if(gime->VersionExists(opt) ) {
421 Error( "Init", "Give a version name different from %s", fEventFolderName.Data() ) ;
422 fInit = kFALSE ;
423 }
05a92d59 424
05a92d59 425 // Post Digitizer to the white board
426 gime->PostDigitizer(this) ;
45fa49ca 427
428 fFirstEvent = 0 ;
429 fLastEvent = fFirstEvent ;
430
88cb7938 431 if(fManager)
432 fInput = fManager->GetNinputs() ;
433 else
434 fInput = 1 ;
435
436 fInputFileNames = new TString[fInput] ;
437 fEventNames = new TString[fInput] ;
438 fInputFileNames[0] = GetTitle() ;
439 fEventNames[0] = fEventFolderName.Data() ;
440 Int_t index ;
441 for (index = 1 ; index < fInput ; index++) {
442 fInputFileNames[index] = dynamic_cast<AliStream*>(fManager->GetInputStream(index))->GetFileName(0);
443 TString tempo = fManager->GetInputFolderName(index) ;
444 fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fManager
05a92d59 445 }
446
88cb7938 447 //to prevent cleaning of this object while GetEvent is called
448 gime->EmcalLoader()->GetDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
449
450 return fInit ;
05a92d59 451}
452
453//____________________________________________________________________________
454void AliEMCALDigitizer::InitParameters()
455{
7d74eaca 456 fMeanPhotonElectron = 18200 ; // electrons per GeV
01224616 457 fPinNoise = 0.003 ; // noise equivalent GeV (random choice)
88cb7938 458 if (fPinNoise == 0. )
459 Warning("InitParameters", "No noise added\n") ;
a9485c37 460 fDigitThreshold = fPinNoise * 3; //2 sigma
7d74eaca 461 fTimeResolution = 1.0e-9 ;
05a92d59 462 fTimeSignalLength = 1.0e-9 ;
05a92d59 463
2608a1fc 464 fADCchannelEC = 0.00305; // width of one ADC channel in GeV - HG fix so that we see 200 GeV gammas
a9485c37 465 fADCpedestalEC = 0.005 ; // GeV
466 fNADCEC = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
467
a9485c37 468 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
05a92d59 469
470}
61e0abb5 471
61e0abb5 472//__________________________________________________________________
09884213 473void AliEMCALDigitizer::MixWith(TString alirunFileName, TString eventFolderName)
05a92d59 474{
475 // Allows to produce digits by superimposing background and signal event.
61e0abb5 476 // It is assumed, that headers file with SIGNAL events is opened in
05a92d59 477 // the constructor.
478 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
479 // Thus we avoid writing (changing) huge and expensive
61e0abb5 480 // backgound files: all output will be writen into SIGNAL, i.e.
481 // opened in constructor file.
482 //
05a92d59 483 // One can open as many files to mix with as one needs.
484 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
485 // can be mixed.
61e0abb5 486
05a92d59 487 if( strcmp(GetName(), "") == 0 )
61e0abb5 488 Init() ;
814ad4bf 489
05a92d59 490 if(fManager){
9859bfc0 491 Error("MixWith", "Cannot use this method under AliRunDigitizer") ;
61e0abb5 492 return ;
05a92d59 493 }
88cb7938 494 // looking for file which contains AliRun
495 if (gSystem->AccessPathName(alirunFileName)) {// file does not exist
496 Error("MixWith", "File %s does not exist!", alirunFileName.Data()) ;
497 return ;
61e0abb5 498 }
88cb7938 499 // looking for the file which contains SDigits
500 AliEMCALGetter * gime = AliEMCALGetter::Instance() ;
501 TString fileName( gime->GetSDigitsFileName() ) ;
e191bb57 502 if ( eventFolderName != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
88cb7938 503 fileName = fileName.ReplaceAll(".root", "") + "_" + eventFolderName + ".root" ;
504 if ( (gSystem->AccessPathName(fileName)) ) {
505 Error("MixWith", "The file %s does not exist!", fileName.Data()) ;
506 return ;
814ad4bf 507 }
88cb7938 508 // need to increase the arrays
509 TString tempo = fInputFileNames[fInput-1] ;
510 delete [] fInputFileNames ;
511 fInputFileNames = new TString[fInput+1] ;
512 fInputFileNames[fInput-1] = tempo ;
513
514 tempo = fEventNames[fInput-1] ;
515 delete [] fEventNames ;
516 fEventNames = new TString[fInput+1] ;
517 fEventNames[fInput-1] = tempo ;
518
519 fInputFileNames[fInput] = alirunFileName ;
520 fEventNames[fInput] = eventFolderName ;
521 fInput++ ;
522}
523
61e0abb5 524//__________________________________________________________________
88cb7938 525void AliEMCALDigitizer::Print()const
526{
527 // Print Digitizer's parameters
fdebddeb 528 printf("Print: \n------------------- %s -------------", GetName() ) ;
88cb7938 529 if( strcmp(fEventFolderName.Data(), "") != 0 ){
530 printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ;
531
532 Int_t nStreams ;
533 if (fManager)
534 nStreams = GetNInputStreams() ;
535 else
536 nStreams = fInput ;
537
538 Int_t index = 0 ;
539 for (index = 0 ; index < nStreams ; index++) {
540 TString tempo(fEventNames[index]) ;
541 tempo += index ;
542 AliEMCALGetter * gime = AliEMCALGetter::Instance(fInputFileNames[index], tempo) ;
543 TString fileName( gime->GetSDigitsFileName() ) ;
e191bb57 544 if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
88cb7938 545 fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ;
546 printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ;
547 }
548 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
549 printf("\nWriting digits to %s", gime->GetDigitsFileName().Data()) ;
550
551 printf("\nWith following parameters:\n") ;
552
553 printf(" Electronics noise in EMC (fPinNoise) = %f\n", fPinNoise) ;
554 printf(" Threshold in EMC (fDigitThreshold) = %f\n", fDigitThreshold) ;
555 printf("---------------------------------------------------\n") ;
ea5f3389 556 }
557 else
fdebddeb 558 printf("Print: AliEMCALDigitizer not initialized") ;
61e0abb5 559}
814ad4bf 560
61e0abb5 561//__________________________________________________________________
562void AliEMCALDigitizer::PrintDigits(Option_t * option){
563
88cb7938 564 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
565 TClonesArray * digits = gime->Digits() ;
566
fdebddeb 567 printf("PrintDigits: %d", digits->GetEntriesFast()) ;
88cb7938 568 printf("\nevent %d", gAlice->GetEvNumber()) ;
569 printf("\n Number of entries in Digits list %d", digits->GetEntriesFast() ) ;
570
571 if(strstr(option,"all")){
61e0abb5 572 //loop over digits
573 AliEMCALDigit * digit;
88cb7938 574 printf("\nEMC digits (with primaries):\n") ;
575 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
61e0abb5 576 Int_t index ;
88cb7938 577 for (index = 0 ; index < digits->GetEntries() ; index++) {
578 digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ;
579 printf("\n%6d %8d %6.5e %4d %2d : ",
11f9c5ff 580 digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
61e0abb5 581 Int_t iprimary;
9859bfc0 582 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
88cb7938 583 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
9859bfc0 584 }
585 }
61e0abb5 586 }
587}
05a92d59 588
589//__________________________________________________________________
590Float_t AliEMCALDigitizer::TimeOfNoise(void)
04f0bda3 591{
592 // Calculates the time signal generated by noise
593 Info("TimeOfNoise", "Change me") ;
594 return gRandom->Rndm() * 1.28E-5;
05a92d59 595}
596
88cb7938 597//__________________________________________________________________
598void AliEMCALDigitizer::Unload()
599{
fdebddeb 600 // Unloads the SDigits and Digits
88cb7938 601 Int_t i ;
602 for(i = 1 ; i < fInput ; i++){
603 TString tempo(fEventNames[i]) ;
604 tempo += i ;
605 AliEMCALGetter * gime = AliEMCALGetter::Instance(fInputFileNames[i], tempo) ;
606 gime->EmcalLoader()->UnloadSDigits() ;
607 }
608
609 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
610 gime->EmcalLoader()->UnloadDigits() ;
611}
612
814ad4bf 613//_________________________________________________________________________________________
9e5d2067 614void AliEMCALDigitizer::WriteDigits()
814ad4bf 615{
61e0abb5 616
814ad4bf 617 // Makes TreeD in the output file.
618 // Check if branch already exists:
619 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
620 // already existing branches.
621 // else creates branch with Digits, named "EMCAL", title "...",
622 // and branch "AliEMCALDigitizer", with the same title to keep all the parameters
623 // and names of files, from which digits are made.
61e0abb5 624
88cb7938 625 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
626 const TClonesArray * digits = gime->Digits() ;
627 TTree * treeD = gime->TreeD();
628
629 // -- create Digits branch
630 Int_t bufferSize = 32000 ;
631 TBranch * digitsBranch = treeD->Branch("EMCAL",&digits,bufferSize);
632 digitsBranch->SetTitle(fEventFolderName);
633 digitsBranch->Fill() ;
634
635 gime->WriteDigits("OVERWRITE");
636 gime->WriteDigitizer("OVERWRITE");
637
638 Unload() ;
639
814ad4bf 640}
61e0abb5 641