Coding conventions (F.Carminati)
[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{
143 // dtor
797e311f 144 AliEMCALGetter * gime =AliEMCALGetter::Instance(GetTitle(),fEventFolderName);
145 gime->EmcalLoader()->CleanDigitizer();
88cb7938 146 delete [] fInputFileNames ;
147 delete [] fEventNames ;
839828a6 148
61e0abb5 149}
150
151//____________________________________________________________________________
09884213 152void AliEMCALDigitizer::Digitize(Int_t event)
05a92d59 153{
61e0abb5 154
155 // Makes the digitization of the collected summable digits
156 // for this it first creates the array of all EMCAL modules
157 // filled with noise (different for EMC, CPV and PPSD) and
158 // after that adds contributions from SDigits. This design
159 // helps to avoid scanning over the list of digits to add
160 // contribution of any new SDigit.
161
88cb7938 162 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
45fa49ca 163 Int_t ReadEvent = event ;
164 if (fManager)
165 ReadEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetCurrentEventNumber() ;
b67f6b2d 166 Info("Digitize", "Adding event %d from input stream 0 %s %s", ReadEvent, GetTitle(), fEventFolderName.Data()) ;
45fa49ca 167 gime->Event(ReadEvent, "S") ;
88cb7938 168 TClonesArray * digits = gime->Digits() ;
814ad4bf 169 digits->Clear() ;
61e0abb5 170
05a92d59 171 const AliEMCALGeometry *geom = gime->EMCALGeometry() ;
fdebddeb 172
b7de6a56 173 Int_t nEMC = geom->GetNPhi()*geom->GetNZ(); //max number of digits possible
88cb7938 174
175 Int_t absID ;
61e0abb5 176
88cb7938 177 digits->Expand(nEMC) ;
05a92d59 178
88cb7938 179 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
180 if ( !gime->SDigitizer() )
181 gime->LoadSDigitizer();
182 AliEMCALSDigitizer * sDigitizer = gime->SDigitizer();
183
184 if ( !sDigitizer )
185 Fatal("Digitize", "SDigitizer with name %s %s not found", fEventFolderName.Data(), GetTitle() ) ;
186
187 //take all the inputs to add together and load the SDigits
188 TObjArray * sdigArray = new TObjArray(fInput) ;
189 sdigArray->AddAt(gime->SDigits(), 0) ;
190 Int_t i ;
191 for(i = 1 ; i < fInput ; i++){
192 TString tempo(fEventNames[i]) ;
193 tempo += i ;
194 AliEMCALGetter * gime = AliEMCALGetter::Instance(fInputFileNames[i], tempo) ;
45fa49ca 195 if (fManager)
196 ReadEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(i))->GetCurrentEventNumber() ;
b67f6b2d 197 Info("Digitize", "Adding event %d from input stream %d %s %s", ReadEvent, i, fInputFileNames[i].Data(), tempo.Data()) ;
45fa49ca 198 gime->Event(ReadEvent,"S");
88cb7938 199 sdigArray->AddAt(gime->SDigits(), i) ;
0c219753 200 }
88cb7938 201
d968cee0 202 //Find the first tower with signal
a9485c37 203 Int_t nextSig = nEMC + 1 ;
88cb7938 204 TClonesArray * sdigits ;
205 for(i = 0 ; i < fInput ; i++){
206 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
814ad4bf 207 if ( !sdigits->GetEntriesFast() )
208 continue ;
88cb7938 209 Int_t curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(0))->GetId() ;
814ad4bf 210 if(curNext < nextSig)
211 nextSig = curNext ;
212 }
61e0abb5 213
88cb7938 214 TArrayI index(fInput) ;
814ad4bf 215 index.Reset() ; //Set all indexes to zero
61e0abb5 216
05a92d59 217 AliEMCALDigit * digit ;
218 AliEMCALDigit * curSDigit ;
ffa6d63b 219
814ad4bf 220 TClonesArray * ticks = new TClonesArray("AliEMCALTick",1000) ;
ffa6d63b 221
814ad4bf 222 //Put Noise contribution
223 for(absID = 1; absID <= nEMC; absID++){
88cb7938 224 Float_t amp = 0 ;
a9485c37 225 // amplitude set to zero, noise will be added later
226 new((*digits)[absID-1]) AliEMCALDigit( -1, -1, absID, 0, TimeOfNoise() ) ;
814ad4bf 227 //look if we have to add signal?
88cb7938 228 digit = dynamic_cast<AliEMCALDigit *>(digits->At(absID-1)) ;
229
814ad4bf 230 if(absID==nextSig){
54cbf5a6 231 //Add SDigits from all inputs
814ad4bf 232 ticks->Clear() ;
233 Int_t contrib = 0 ;
234 Float_t a = digit->GetAmp() ;
235 Float_t b = TMath::Abs( a /fTimeSignalLength) ;
88cb7938 236 //Mark the beginning of the signal
814ad4bf 237 new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime(),0, b);
fdebddeb 238 //Mark the end of the signal
814ad4bf 239 new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime()+fTimeSignalLength, -a, -b);
240
88cb7938 241 // loop over input
242 for(i = 0; i< fInput ; i++){ //loop over (possible) merge sources
243 if(dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
244 curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
814ad4bf 245 else
246 curSDigit = 0 ;
247 //May be several digits will contribute from the same input
fdebddeb 248 while(curSDigit && (curSDigit->GetId() == absID)){
814ad4bf 249 //Shift primary to separate primaries belonging different inputs
250 Int_t primaryoffset ;
251 if(fManager)
252 primaryoffset = fManager->GetMask(i) ;
253 else
254 primaryoffset = i ;
255 curSDigit->ShiftPrimary(primaryoffset) ;
256
257 a = curSDigit->GetAmp() ;
258 b = a /fTimeSignalLength ;
259 new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime(),0, b);
260 new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
261
262 *digit = *digit + *curSDigit ; //add energies
263
264 index[i]++ ;
88cb7938 265 if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
266 curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
814ad4bf 267 else
268 curSDigit = 0 ;
269 }
270 }
a9485c37 271 // add fluctuations for photo-electron creation
272 amp = sDigitizer->Calibrate(digit->GetAmp()) ; // GeV
a9485c37 273 amp *= static_cast<Float_t>(gRandom->Poisson(fMeanPhotonElectron)) / static_cast<Float_t>(fMeanPhotonElectron) ;
88cb7938 274
05a92d59 275 //calculate and set time
814ad4bf 276 Float_t time = FrontEdgeTime(ticks) ;
277 digit->SetTime(time) ;
278
279 //Find next signal module
a9485c37 280 nextSig = nEMC + 1 ;
88cb7938 281 for(i = 0 ; i < fInput ; i++){
282 sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
814ad4bf 283 Int_t curNext = nextSig ;
284 if(sdigits->GetEntriesFast() > index[i] ){
88cb7938 285 curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i]))->GetId() ;
814ad4bf 286 }
287 if(curNext < nextSig) nextSig = curNext ;
288 }
289 }
a9485c37 290 // add the noise now
fdebddeb 291 amp += TMath::Abs(gRandom->Gaus(0., fPinNoise)) ;
a9485c37 292 digit->SetAmp(sDigitizer->Digitize(amp)) ;
814ad4bf 293 }
294
295 ticks->Delete() ;
296 delete ticks ;
61e0abb5 297
05a92d59 298 delete sdigArray ; //We should not delete its contents
61e0abb5 299
814ad4bf 300 //remove digits below thresholds
88cb7938 301 for(i = 0 ; i < nEMC ; i++){
302 digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ;
fdebddeb 303 Float_t threshold = fDigitThreshold ;
88cb7938 304 if(sDigitizer->Calibrate( digit->GetAmp() ) < threshold)
305 digits->RemoveAt(i) ;
306 else
814ad4bf 307 digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
a9485c37 308 }
61e0abb5 309
814ad4bf 310 digits->Compress() ;
61e0abb5 311
05a92d59 312 Int_t ndigits = digits->GetEntriesFast() ;
88cb7938 313 digits->Expand(ndigits) ;
61e0abb5 314
814ad4bf 315 //Set indexes in list of digits
05a92d59 316 for (i = 0 ; i < ndigits ; i++) {
317 digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ;
814ad4bf 318 digit->SetIndexInList(i) ;
319 Float_t energy = sDigitizer->Calibrate(digit->GetAmp()) ;
fdebddeb 320 digit->SetAmp(DigitizeEnergy(energy) ) ;
61e0abb5 321 }
814ad4bf 322}
61e0abb5 323
814ad4bf 324//____________________________________________________________________________
61e0abb5 325
fdebddeb 326Int_t AliEMCALDigitizer::DigitizeEnergy(Float_t energy)
814ad4bf 327{
fdebddeb 328 Int_t channel = -999;
329 channel = static_cast<Int_t> (TMath::Ceil( (energy + fADCpedestalEC)/fADCchannelEC )) ;
330 if(channel > fNADCEC )
7d74eaca 331 channel = fNADCEC ;
814ad4bf 332 return channel ;
61e0abb5 333}
334
335//____________________________________________________________________________
05a92d59 336void AliEMCALDigitizer::Exec(Option_t *option)
337{
45fa49ca 338 // Steering method to process digitization for events
339 // in the range from fFirstEvent to fLastEvent.
340 // This range is optionally set by SetEventRange().
341 // if fLastEvent=-1, then process events until the end.
342 // by default fLastEvent = fFirstEvent (process only one event)
05a92d59 343
88cb7938 344 if (!fInit) { // to prevent overwrite existing file
345 Error( "Exec", "Give a version name different from %s", fEventFolderName.Data() ) ;
346 return ;
347 }
348
814ad4bf 349 if (strstr(option,"print")) {
88cb7938 350 Print();
814ad4bf 351 return ;
352 }
353
61e0abb5 354 if(strstr(option,"tim"))
355 gBenchmark->Start("EMCALDigitizer");
814ad4bf 356
fb43ada4 357 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle()) ;
45fa49ca 358
359 if (fLastEvent == -1)
360 fLastEvent = gime->MaxEvent() - 1 ;
396a348e 361 else if (fManager)
362 fLastEvent = fFirstEvent ;
363
45fa49ca 364 Int_t nEvents = fLastEvent - fFirstEvent + 1;
05a92d59 365
814ad4bf 366 Int_t ievent ;
367
45fa49ca 368 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
369
88cb7938 370 gime->Event(ievent,"S") ;
05a92d59 371
814ad4bf 372 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
88cb7938 373
9e5d2067 374 WriteDigits() ;
88cb7938 375
61e0abb5 376 if(strstr(option,"deb"))
377 PrintDigits(option);
88cb7938 378
814ad4bf 379 //increment the total number of Digits per run
380 fDigitsInRun += gime->Digits()->GetEntriesFast() ;
61e0abb5 381 }
814ad4bf 382
61e0abb5 383 if(strstr(option,"tim")){
384 gBenchmark->Stop("EMCALDigitizer");
fdebddeb 385 printf("Exec: took %f seconds for Digitizing %f seconds per event",
45fa49ca 386 gBenchmark->GetCpuTime("EMCALDigitizer"), gBenchmark->GetCpuTime("EMCALDigitizer")/nEvents ) ;
88cb7938 387 }
61e0abb5 388}
389
05a92d59 390//____________________________________________________________________________
391Float_t AliEMCALDigitizer::FrontEdgeTime(TClonesArray * ticks)
88cb7938 392{
393 // Returns the shortest time among all time ticks
394
05a92d59 395 ticks->Sort() ; //Sort in accordance with times of ticks
396 TIter it(ticks) ;
397 AliEMCALTick * ctick = (AliEMCALTick *) it.Next() ;
398 Float_t time = ctick->CrossingTime(fTimeThreshold) ;
399
400 AliEMCALTick * t ;
401 while((t=(AliEMCALTick*) it.Next())){
402 if(t->GetTime() < time) //This tick starts before crossing
403 *ctick+=*t ;
404 else
405 return time ;
406
407 time = ctick->CrossingTime(fTimeThreshold) ;
408 }
409 return time ;
410}
411
412//____________________________________________________________________________
413Bool_t AliEMCALDigitizer::Init()
414{
415 // Makes all memory allocations
88cb7938 416 fInit = kTRUE ;
417 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
05a92d59 418 if ( gime == 0 ) {
88cb7938 419 Error("Init", "Could not obtain the Getter object for file %s and event %s !", GetTitle(), fEventFolderName.Data()) ;
05a92d59 420 return kFALSE;
421 }
422
88cb7938 423 TString opt("Digits") ;
424 if(gime->VersionExists(opt) ) {
425 Error( "Init", "Give a version name different from %s", fEventFolderName.Data() ) ;
426 fInit = kFALSE ;
427 }
05a92d59 428
05a92d59 429 // Post Digitizer to the white board
430 gime->PostDigitizer(this) ;
45fa49ca 431
432 fFirstEvent = 0 ;
433 fLastEvent = fFirstEvent ;
434
88cb7938 435 if(fManager)
436 fInput = fManager->GetNinputs() ;
437 else
438 fInput = 1 ;
439
440 fInputFileNames = new TString[fInput] ;
441 fEventNames = new TString[fInput] ;
442 fInputFileNames[0] = GetTitle() ;
443 fEventNames[0] = fEventFolderName.Data() ;
444 Int_t index ;
445 for (index = 1 ; index < fInput ; index++) {
446 fInputFileNames[index] = dynamic_cast<AliStream*>(fManager->GetInputStream(index))->GetFileName(0);
447 TString tempo = fManager->GetInputFolderName(index) ;
448 fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fManager
05a92d59 449 }
450
88cb7938 451 //to prevent cleaning of this object while GetEvent is called
452 gime->EmcalLoader()->GetDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
453
454 return fInit ;
05a92d59 455}
456
457//____________________________________________________________________________
458void AliEMCALDigitizer::InitParameters()
459{
7d74eaca 460 fMeanPhotonElectron = 18200 ; // electrons per GeV
01224616 461 fPinNoise = 0.003 ; // noise equivalent GeV (random choice)
88cb7938 462 if (fPinNoise == 0. )
463 Warning("InitParameters", "No noise added\n") ;
a9485c37 464 fDigitThreshold = fPinNoise * 3; //2 sigma
7d74eaca 465 fTimeResolution = 1.0e-9 ;
05a92d59 466 fTimeSignalLength = 1.0e-9 ;
05a92d59 467
2608a1fc 468 fADCchannelEC = 0.00305; // width of one ADC channel in GeV - HG fix so that we see 200 GeV gammas
a9485c37 469 fADCpedestalEC = 0.005 ; // GeV
470 fNADCEC = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
471
a9485c37 472 fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
05a92d59 473
474}
61e0abb5 475
61e0abb5 476//__________________________________________________________________
09884213 477void AliEMCALDigitizer::MixWith(TString alirunFileName, TString eventFolderName)
05a92d59 478{
479 // Allows to produce digits by superimposing background and signal event.
61e0abb5 480 // It is assumed, that headers file with SIGNAL events is opened in
05a92d59 481 // the constructor.
482 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
483 // Thus we avoid writing (changing) huge and expensive
61e0abb5 484 // backgound files: all output will be writen into SIGNAL, i.e.
485 // opened in constructor file.
486 //
05a92d59 487 // One can open as many files to mix with as one needs.
488 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
489 // can be mixed.
61e0abb5 490
05a92d59 491 if( strcmp(GetName(), "") == 0 )
61e0abb5 492 Init() ;
814ad4bf 493
05a92d59 494 if(fManager){
9859bfc0 495 Error("MixWith", "Cannot use this method under AliRunDigitizer") ;
61e0abb5 496 return ;
05a92d59 497 }
88cb7938 498 // looking for file which contains AliRun
499 if (gSystem->AccessPathName(alirunFileName)) {// file does not exist
500 Error("MixWith", "File %s does not exist!", alirunFileName.Data()) ;
501 return ;
61e0abb5 502 }
88cb7938 503 // looking for the file which contains SDigits
504 AliEMCALGetter * gime = AliEMCALGetter::Instance() ;
505 TString fileName( gime->GetSDigitsFileName() ) ;
e191bb57 506 if ( eventFolderName != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
88cb7938 507 fileName = fileName.ReplaceAll(".root", "") + "_" + eventFolderName + ".root" ;
508 if ( (gSystem->AccessPathName(fileName)) ) {
509 Error("MixWith", "The file %s does not exist!", fileName.Data()) ;
510 return ;
814ad4bf 511 }
88cb7938 512 // need to increase the arrays
513 TString tempo = fInputFileNames[fInput-1] ;
514 delete [] fInputFileNames ;
515 fInputFileNames = new TString[fInput+1] ;
516 fInputFileNames[fInput-1] = tempo ;
517
518 tempo = fEventNames[fInput-1] ;
519 delete [] fEventNames ;
520 fEventNames = new TString[fInput+1] ;
521 fEventNames[fInput-1] = tempo ;
522
523 fInputFileNames[fInput] = alirunFileName ;
524 fEventNames[fInput] = eventFolderName ;
525 fInput++ ;
526}
527
61e0abb5 528//__________________________________________________________________
88cb7938 529void AliEMCALDigitizer::Print()const
530{
531 // Print Digitizer's parameters
fdebddeb 532 printf("Print: \n------------------- %s -------------", GetName() ) ;
88cb7938 533 if( strcmp(fEventFolderName.Data(), "") != 0 ){
534 printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ;
535
536 Int_t nStreams ;
537 if (fManager)
538 nStreams = GetNInputStreams() ;
539 else
540 nStreams = fInput ;
541
542 Int_t index = 0 ;
543 for (index = 0 ; index < nStreams ; index++) {
544 TString tempo(fEventNames[index]) ;
545 tempo += index ;
546 AliEMCALGetter * gime = AliEMCALGetter::Instance(fInputFileNames[index], tempo) ;
547 TString fileName( gime->GetSDigitsFileName() ) ;
e191bb57 548 if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
88cb7938 549 fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ;
550 printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ;
551 }
552 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
553 printf("\nWriting digits to %s", gime->GetDigitsFileName().Data()) ;
554
555 printf("\nWith following parameters:\n") ;
556
557 printf(" Electronics noise in EMC (fPinNoise) = %f\n", fPinNoise) ;
558 printf(" Threshold in EMC (fDigitThreshold) = %f\n", fDigitThreshold) ;
559 printf("---------------------------------------------------\n") ;
ea5f3389 560 }
561 else
fdebddeb 562 printf("Print: AliEMCALDigitizer not initialized") ;
61e0abb5 563}
814ad4bf 564
61e0abb5 565//__________________________________________________________________
566void AliEMCALDigitizer::PrintDigits(Option_t * option){
567
88cb7938 568 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
569 TClonesArray * digits = gime->Digits() ;
570
fdebddeb 571 printf("PrintDigits: %d", digits->GetEntriesFast()) ;
88cb7938 572 printf("\nevent %d", gAlice->GetEvNumber()) ;
573 printf("\n Number of entries in Digits list %d", digits->GetEntriesFast() ) ;
574
575 if(strstr(option,"all")){
61e0abb5 576 //loop over digits
577 AliEMCALDigit * digit;
88cb7938 578 printf("\nEMC digits (with primaries):\n") ;
579 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
61e0abb5 580 Int_t index ;
88cb7938 581 for (index = 0 ; index < digits->GetEntries() ; index++) {
582 digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ;
583 printf("\n%6d %8d %6.5e %4d %2d : ",
11f9c5ff 584 digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
61e0abb5 585 Int_t iprimary;
9859bfc0 586 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
88cb7938 587 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
9859bfc0 588 }
589 }
61e0abb5 590 }
591}
05a92d59 592
593//__________________________________________________________________
594Float_t AliEMCALDigitizer::TimeOfNoise(void)
595{ // Calculates the time signal generated by noise
596 //to be rewritten, now returns just big number
597 return 1. ;
598
599}
600
88cb7938 601//__________________________________________________________________
602void AliEMCALDigitizer::Unload()
603{
fdebddeb 604 // Unloads the SDigits and Digits
88cb7938 605 Int_t i ;
606 for(i = 1 ; i < fInput ; i++){
607 TString tempo(fEventNames[i]) ;
608 tempo += i ;
609 AliEMCALGetter * gime = AliEMCALGetter::Instance(fInputFileNames[i], tempo) ;
610 gime->EmcalLoader()->UnloadSDigits() ;
611 }
612
613 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
614 gime->EmcalLoader()->UnloadDigits() ;
615}
616
814ad4bf 617//_________________________________________________________________________________________
9e5d2067 618void AliEMCALDigitizer::WriteDigits()
814ad4bf 619{
61e0abb5 620
814ad4bf 621 // Makes TreeD in the output file.
622 // Check if branch already exists:
623 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
624 // already existing branches.
625 // else creates branch with Digits, named "EMCAL", title "...",
626 // and branch "AliEMCALDigitizer", with the same title to keep all the parameters
627 // and names of files, from which digits are made.
61e0abb5 628
88cb7938 629 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName) ;
630 const TClonesArray * digits = gime->Digits() ;
631 TTree * treeD = gime->TreeD();
632
633 // -- create Digits branch
634 Int_t bufferSize = 32000 ;
635 TBranch * digitsBranch = treeD->Branch("EMCAL",&digits,bufferSize);
636 digitsBranch->SetTitle(fEventFolderName);
637 digitsBranch->Fill() ;
638
639 gime->WriteDigits("OVERWRITE");
640 gime->WriteDigitizer("OVERWRITE");
641
642 Unload() ;
643
814ad4bf 644}
61e0abb5 645