Initialize arrays in constructor (Ivana)
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALSDigitizer.cxx
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ffa6d63b 1/*************************************************************************
61e0abb5 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//_________________________________________________________________________
19// This is a TTask that makes SDigits out of Hits
20// A Summable Digits is the sum of all hits originating
ffa6d63b 21// from one in one tower of the EMCAL
61e0abb5 22// A threshold for assignment of the primary to SDigit is applied
23// SDigits are written to TreeS, branch "EMCAL"
24// AliEMCALSDigitizer with all current parameters is written
25// to TreeS branch "AliEMCALSDigitizer".
26// Both branches have the same title. If necessary one can produce
27// another set of SDigits with different parameters. Two versions
28// can be distunguished using titles of the branches.
29// User case:
30// root [0] AliEMCALSDigitizer * s = new AliEMCALSDigitizer("galice.root")
31// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
32// root [1] s->ExecuteTask()
33// // Makes SDigitis for all events stored in galice.root
34// root [2] s->SetPedestalParameter(0.001)
35// // One can change parameters of digitization
36// root [3] s->SetSDigitsBranch("Redestal 0.001")
37// // and write them into the new branch
38// root [4] s->ExeciteTask("deb all tim")
39// // available parameters:
40// deb - print # of produced SDigitis
41// deb all - print # and list of produced SDigits
42// tim - print benchmarking information
43//
ffa6d63b 44//*-- Author : Sahal Yacoob (LBL)
45// based on : AliPHOSSDigitzer
05a92d59 46// Modif:
47// August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction
48// of new IO (à la PHOS)
61e0abb5 49//////////////////////////////////////////////////////////////////////////////
50
61e0abb5 51// --- ROOT system ---
61e0abb5 52#include "TBenchmark.h"
13e1db42 53 //#include "TObjectTable.h"
05a92d59 54
61e0abb5 55// --- Standard library ---
d64c959b 56#include "stdlib.h"
61e0abb5 57
58// --- AliRoot header files ---
13e1db42 59#include "AliLog.h"
61e0abb5 60#include "AliEMCALDigit.h"
814ad4bf 61#include "AliEMCALGetter.h"
05a92d59 62#include "AliEMCALHit.h"
63#include "AliEMCALSDigitizer.h"
88cb7938 64#include "AliEMCALGeometry.h"
13e1db42 65 //#include "AliMemoryWatcher.h"
61e0abb5 66
67ClassImp(AliEMCALSDigitizer)
61e0abb5 68
69//____________________________________________________________________________
88cb7938 70 AliEMCALSDigitizer::AliEMCALSDigitizer():TTask("","")
61e0abb5 71{
72 // ctor
5082063d 73 fFirstEvent = fLastEvent = 0 ;
92f521a9 74 fDefaultInit = kTRUE ;
61e0abb5 75}
76
77//____________________________________________________________________________
e191bb57 78AliEMCALSDigitizer::AliEMCALSDigitizer(const char * alirunFileName,
79 const char * eventFolderName):
80 TTask("EMCAL"+AliConfig::Instance()->GetSDigitizerTaskName(), alirunFileName),
88cb7938 81 fEventFolderName(eventFolderName)
61e0abb5 82{
83 // ctor
5082063d 84 fFirstEvent = fLastEvent = 0 ; // runs one event by defaut
814ad4bf 85 Init();
62741b41 86 InitParameters() ;
92f521a9 87 fDefaultInit = kFALSE ;
61e0abb5 88}
89
88cb7938 90
61e0abb5 91//____________________________________________________________________________
9e5d2067 92AliEMCALSDigitizer::AliEMCALSDigitizer(const AliEMCALSDigitizer & sd) : TTask(sd) {
88cb7938 93 //cpy ctor
94
5082063d 95 fFirstEvent = sd.fFirstEvent ;
96 fLastEvent = sd.fLastEvent ;
88cb7938 97 fA = sd.fA ;
98 fB = sd.fB ;
88cb7938 99 fECPrimThreshold = sd.fECPrimThreshold ;
88cb7938 100 fSDigitsInRun = sd.fSDigitsInRun ;
101 SetName(sd.GetName()) ;
102 SetTitle(sd.GetTitle()) ;
103 fEventFolderName = sd.fEventFolderName;
61e0abb5 104}
36657114 105
88cb7938 106
61e0abb5 107//____________________________________________________________________________
797e311f 108AliEMCALSDigitizer::~AliEMCALSDigitizer() {
109 // dtor
110 AliEMCALGetter * gime =
13e1db42 111 // AliEMCALGetter::Instance(GetTitle(), fEventFolderName.Data());
112 AliEMCALGetter::Instance();
797e311f 113 gime->EmcalLoader()->CleanSDigitizer();
114}
115
116//____________________________________________________________________________
61e0abb5 117void AliEMCALSDigitizer::Init(){
814ad4bf 118 // Initialization: open root-file, allocate arrays for hits and sdigits,
36657114 119 // attach task SDigitizer to the list of EMCAL tasks
814ad4bf 120 //
121 // Initialization can not be done in the default constructor
122 //============================================================= YS
123 // The initialisation is now done by the getter
61e0abb5 124
88cb7938 125 fInit = kTRUE ;
afa0c708 126
88cb7938 127 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName.Data());
814ad4bf 128 if ( gime == 0 ) {
88cb7938 129 Fatal("Init", "Could not obtain the Getter objectfor file %s and event %s !", GetTitle(), fEventFolderName.Data()) ;
814ad4bf 130 return ;
131 }
132
88cb7938 133 TString opt("SDigits") ;
134 if(gime->VersionExists(opt) ) {
135 Error( "Init", "Give a version name different from %s", fEventFolderName.Data() ) ;
136 fInit = kFALSE ;
05a92d59 137 }
88cb7938 138
139 gime->PostSDigitizer(this);
140 gime->EmcalLoader()->GetSDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
141
839828a6 142}
143
144//____________________________________________________________________________
afa0c708 145void AliEMCALSDigitizer::InitParameters()
146{
d64c959b 147 // Initializes parameters
05a92d59 148 fA = 0;
149 fB = 10000000.;
62741b41 150
88cb7938 151 AliEMCALGetter * gime = AliEMCALGetter::Instance() ;
62741b41 152 const AliEMCALGeometry * geom = gime->EMCALGeometry() ;
153 if (geom->GetSampling() == 0.) {
5082063d 154 Fatal("InitParameters", "Sampling factor not set !") ;
62741b41 155 }
f540341d 156// else
157// Info("InitParameters", "Sampling factor set to %f", geom->GetSampling()) ;
62741b41 158
159 // this threshold corresponds approximately to 100 MeV
7d74eaca 160 fECPrimThreshold = 100E-3;
839828a6 161}
162
61e0abb5 163//____________________________________________________________________________
afa0c708 164void AliEMCALSDigitizer::Exec(Option_t *option)
165{
fdebddeb 166 // Collects all hit of the same tower into digits
814ad4bf 167 if (strstr(option, "print") ) {
d64c959b 168 Print() ;
814ad4bf 169 return ;
170 }
61e0abb5 171
814ad4bf 172 if(strstr(option,"tim"))
173 gBenchmark->Start("EMCALSDigitizer");
97f3344e 174
13e1db42 175 //AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle()) ;
176 AliEMCALGetter * gime = AliEMCALGetter::Instance() ;
177
88cb7938 178 //switch off reloading of this task while getting event
179 if (!fInit) { // to prevent overwrite existing file
13e1db42 180 AliError( Form("Give a version name different from %s", fEventFolderName.Data()) ) ;
88cb7938 181 return ;
fdebddeb 182 }
183
5082063d 184 if (fLastEvent == -1)
185 fLastEvent = gime->MaxEvent() - 1 ;
186 else
187 fLastEvent = TMath::Min(fFirstEvent, gime->MaxEvent()); // only ine event at the time
188 Int_t nEvents = fLastEvent - fFirstEvent + 1;
189
62741b41 190 Int_t ievent ;
13e1db42 191
192 //AliMemoryWatcher memwatcher;
193
5082063d 194 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
62741b41 195 gime->Event(ievent,"H") ;
88cb7938 196 TTree * treeS = gime->TreeS();
197 TClonesArray * hits = gime->Hits() ;
198 TClonesArray * sdigits = gime->SDigits() ;
814ad4bf 199 sdigits->Clear();
61e0abb5 200 Int_t nSdigits = 0 ;
05a92d59 201 //Now make SDigits from hits, for EMCAL it is the same, so just copy
88cb7938 202 Int_t nPrim = static_cast<Int_t>((gime->TreeH())->GetEntries()) ;
05a92d59 203 // Attention nPrim is the number of primaries tracked by Geant
204 // and this number could be different to the number of Primaries in TreeK;
205 Int_t iprim ;
62741b41 206 for ( iprim = 0 ; iprim < nPrim ; iprim++ ) {
207 //=========== Get the EMCAL branch from Hits Tree for the Primary iprim
208 gime->Track(iprim) ;
209 Int_t i;
210 for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
211 AliEMCALHit * hit = dynamic_cast<AliEMCALHit*>(hits->At(i)) ;
212 AliEMCALDigit * curSDigit = 0 ;
213 AliEMCALDigit * sdigit = 0 ;
214 Bool_t newsdigit = kTRUE;
215
216 // Assign primary number only if deposited energy is significant
88cb7938 217 AliEMCALGeometry * geom = gime->EMCALGeometry() ;
fdebddeb 218 if( geom->IsInECA(hit->GetId()) ){
62741b41 219 if( hit->GetEnergy() > fECPrimThreshold )
220 curSDigit = new AliEMCALDigit( hit->GetPrimary(),
221 hit->GetIparent(), hit->GetId(),
222 Digitize(hit->GetEnergy()), hit->GetTime() ) ;
223 else
224 curSDigit = new AliEMCALDigit( -1 ,
225 -1 ,
226 hit->GetId(),
227 Digitize(hit->GetEnergy()), hit->GetTime() ) ;
fdebddeb 228 }
229 else{
230 newsdigit = kFALSE;
231 }
232
62741b41 233 Int_t check = 0 ;
fdebddeb 234
62741b41 235 for(check= 0; check < nSdigits ; check++) {
236 sdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(check)) ;
fdebddeb 237 if(curSDigit != 0){
238 if( sdigit->GetId() == curSDigit->GetId()) { // Are we in the same ECAL tower ?
62741b41 239 *sdigit = *sdigit + *curSDigit;
240 newsdigit = kFALSE;
fdebddeb 241 }
afa0c708 242 }
afa0c708 243 }
fdebddeb 244 if (newsdigit) {
62741b41 245 new((*sdigits)[nSdigits]) AliEMCALDigit(*curSDigit);
246 nSdigits++ ;
e1f60236 247 }
62741b41 248 delete curSDigit ;
fdebddeb 249 } // loop over all hits (hit = deposited energy/entering particle)
62741b41 250 } // loop over iprim
62741b41 251 sdigits->Sort() ;
252
253 nSdigits = sdigits->GetEntriesFast() ;
254 fSDigitsInRun += nSdigits ;
255 sdigits->Expand(nSdigits) ;
256
d64c959b 257 Int_t nPrimarymax = -1 ;
62741b41 258 Int_t i ;
259 for (i = 0 ; i < sdigits->GetEntriesFast() ; i++) {
260 AliEMCALDigit * sdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(i)) ;
261 sdigit->SetIndexInList(i) ;
262 }
263
264 for (i = 0 ; i < sdigits->GetEntriesFast() ; i++) {
d64c959b 265 if (((dynamic_cast<AliEMCALDigit *>(sdigits->At(i)))->GetNprimary()) > nPrimarymax)
266 nPrimarymax = ((dynamic_cast<AliEMCALDigit *>(sdigits->At(i)))->GetNprimary()) ;
62741b41 267 }
268
88cb7938 269 // Now write SDigits
62741b41 270 //First list of sdigits
88cb7938 271
62741b41 272 Int_t bufferSize = 32000 ;
88cb7938 273 TBranch * sdigitsBranch = treeS->Branch("EMCAL",&sdigits,bufferSize);
274
275 sdigitsBranch->Fill() ;
276
277 gime->WriteSDigits("OVERWRITE");
62741b41 278
279 //NEXT - SDigitizer
88cb7938 280
281 gime->WriteSDigitizer("OVERWRITE");
62741b41 282
283 if(strstr(option,"deb"))
284 PrintSDigits(option) ;
13e1db42 285
286 //gObjectTable->Print() ;
287 //memwatcher.Watch(ievent);
288 }// event loop
88cb7938 289
290 Unload();
291
292 gime->EmcalLoader()->GetSDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
293
61e0abb5 294 if(strstr(option,"tim")){
9859bfc0 295 gBenchmark->Stop("EMCALSDigitizer");
fdebddeb 296 printf("Exec: took %f seconds for SDigitizing %f seconds per event",
5082063d 297 gBenchmark->GetCpuTime("EMCALSDigitizer"), gBenchmark->GetCpuTime("EMCALSDigitizer")/nEvents ) ;
62741b41 298 }
13e1db42 299
300 //TFile f("out.root","RECREATE");
301 //memwatcher.WriteToFile();
302 //f.Close();
61e0abb5 303}
05a92d59 304
106fc2fa 305
61e0abb5 306//__________________________________________________________________
d64c959b 307void AliEMCALSDigitizer::Print()const
05a92d59 308{
309 // Prints parameters of SDigitizer
fdebddeb 310 printf("Print: \n------------------- %s -------------", GetName() ) ;
88cb7938 311 printf(" Writing SDigits to branch with title %s\n", fEventFolderName.Data()) ;
312 printf(" with digitization parameters A = %f\n", fA) ;
313 printf(" B = %f\n", fB) ;
88cb7938 314 printf(" Threshold for EC Primary assignment= %f\n", fECPrimThreshold) ;
88cb7938 315 printf("---------------------------------------------------\n") ;
05a92d59 316
61e0abb5 317}
05a92d59 318
61e0abb5 319//__________________________________________________________________
05a92d59 320Bool_t AliEMCALSDigitizer::operator==( AliEMCALSDigitizer const &sd )const
321{
322 // Equal operator.
323 // SDititizers are equal if their pedestal, slope and threshold are equal
89e103bd 324 if( (fA==sd.fA)&&(fB==sd.fB)&&
fdebddeb 325 (fECPrimThreshold==sd.fECPrimThreshold))
61e0abb5 326 return kTRUE ;
327 else
328 return kFALSE ;
329}
173558f2 330
61e0abb5 331//__________________________________________________________________
d64c959b 332void AliEMCALSDigitizer::PrintSDigits(Option_t * option)
333{
61e0abb5 334 //Prints list of digits produced at the current pass of AliEMCALDigitizer
335
d64c959b 336
88cb7938 337 AliEMCALGetter * gime = AliEMCALGetter::Instance() ;
338 const TClonesArray * sdigits = gime->SDigits() ;
61e0abb5 339
fdebddeb 340 printf("\n") ;
341 printf("event %i", gAlice->GetEvNumber()) ;
342 printf("\n Number of entries in SDigits list %i", sdigits->GetEntriesFast());
814ad4bf 343 if(strstr(option,"all")||strstr(option,"EMC")){
9859bfc0 344
61e0abb5 345 //loop over digits
346 AliEMCALDigit * digit;
fdebddeb 347 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
61e0abb5 348 Int_t index ;
11f9c5ff 349 char * tempo = new char[8192];
814ad4bf 350 for (index = 0 ; index < sdigits->GetEntries() ; index++) {
05a92d59 351 digit = dynamic_cast<AliEMCALDigit *>( sdigits->At(index) ) ;
11f9c5ff 352 sprintf(tempo, "\n%6d %8d %6.5e %4d %2d :",
353 digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
fdebddeb 354 printf(tempo);
61e0abb5 355
356 Int_t iprimary;
9859bfc0 357 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
11f9c5ff 358 sprintf(tempo, "%d ",digit->GetPrimary(iprimary+1) ) ;
fdebddeb 359 printf(tempo);
9859bfc0 360 }
61e0abb5 361 }
11f9c5ff 362 delete tempo ;
61e0abb5 363 }
364}
05a92d59 365
05a92d59 366//____________________________________________________________________________
88cb7938 367void AliEMCALSDigitizer::Unload() const
05a92d59 368{
d64c959b 369 // Unload Hits and SDigits from the folder
88cb7938 370 AliEMCALGetter * gime = AliEMCALGetter::Instance() ;
371 AliEMCALLoader * loader = gime->EmcalLoader() ;
372 loader->UnloadHits() ;
373 loader->UnloadSDigits() ;
05a92d59 374}