V3.04 -> V3.05: Init and npadrow changed
[u/mrichter/AliRoot.git] / PHOS / AliPHOSDigitizer.cxx
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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
16/* $Id$ */
17
18//_________________________________________________________________________
990119d6 19//*-- Author : Dmitri Peressounko (SUBATECH & Kurchatov Institute)
20//////////////////////////////////////////////////////////////////////////////
a4e98857 21// This TTask performs digitization of Summable digits (in the PHOS case it is just
22// the sum of contributions from all primary particles into a given cell).
990119d6 23// In addition it performs mixing of summable digits from different events.
7b7c1533 24// The name of the TTask is also the title of the branch that will contain
25// the created SDigits
26// The title of the TTAsk is the name of the file that contains the hits from
27// which the SDigits are created
bca3b32a 28//
29// For each event two branches are created in TreeD:
30// "PHOS" - list of digits
31// "AliPHOSDigitizer" - AliPHOSDigitizer with all parameters used in digitization
32//
a4e98857 33// Note, that one can set a title for new digits branch, and repeat digitization with
bca3b32a 34// another set of parameters.
35//
a4e98857 36// Use case:
990119d6 37// root[0] AliPHOSDigitizer * d = new AliPHOSDigitizer() ;
38// root[1] d->ExecuteTask()
39// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
40// //Digitizes SDigitis in all events found in file galice.root
bca3b32a 41//
8cb3533f 42// root[2] AliPHOSDigitizer * d1 = new AliPHOSDigitizer("galice1.root") ;
43// // Will read sdigits from galice1.root
44// root[3] d1->MixWith("galice2.root")
990119d6 45// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
a4e98857 46// // Reads another set of sdigits from galice2.root
8cb3533f 47// root[3] d1->MixWith("galice3.root")
a4e98857 48// // Reads another set of sdigits from galice3.root
8cb3533f 49// root[4] d->ExecuteTask("deb timing")
50// // Reads SDigits from files galice1.root, galice2.root ....
51// // mixes them and stores produced Digits in file galice1.root
52// // deb - prints number of produced digits
53// // deb all - prints list of produced digits
54// // timing - prints time used for digitization
990119d6 55//
990119d6 56
57// --- ROOT system ---
8cb3533f 58#include "TFile.h"
990119d6 59#include "TTree.h"
60#include "TSystem.h"
8cb3533f 61#include "TROOT.h"
62#include "TFolder.h"
63#include "TObjString.h"
64#include "TBenchmark.h"
990119d6 65// --- Standard library ---
8cb3533f 66#include <iomanip.h>
990119d6 67
68// --- AliRoot header files ---
69
8cb3533f 70#include "AliRun.h"
990119d6 71#include "AliPHOSDigit.h"
dd5c4038 72#include "AliPHOS.h"
7b7c1533 73#include "AliPHOSGetter.h"
990119d6 74#include "AliPHOSDigitizer.h"
75#include "AliPHOSSDigitizer.h"
8cb3533f 76#include "AliPHOSGeometry.h"
990119d6 77
78ClassImp(AliPHOSDigitizer)
79
80
81//____________________________________________________________________________
7b7c1533 82 AliPHOSDigitizer::AliPHOSDigitizer():TTask("","")
990119d6 83{
84 // ctor
85
2bd5457f 86 fPinNoise = 0.01 ;
87 fEMCDigitThreshold = 0.01 ;
88 fCPVNoise = 0.01;
89 fCPVDigitThreshold = 0.09 ;
90 fPPSDNoise = 0.0000001;
91 fPPSDDigitThreshold = 0.0000002 ;
8cb3533f 92
990119d6 93}
94
990119d6 95//____________________________________________________________________________
7b7c1533 96AliPHOSDigitizer::AliPHOSDigitizer(const char *headerFile,const char * name):
97 TTask(name, headerFile)
990119d6 98{
99 // ctor
7b7c1533 100
2bd5457f 101 fPinNoise = 0.01 ;
102 fEMCDigitThreshold = 0.01 ;
103 fCPVNoise = 0.01;
104 fCPVDigitThreshold = 0.09 ;
105 fPPSDNoise = 0.0000001;
990119d6 106 fPPSDDigitThreshold = 0.0000002 ;
2bd5457f 107
108 Init() ;
8cb3533f 109
990119d6 110}
111
112//____________________________________________________________________________
113 AliPHOSDigitizer::~AliPHOSDigitizer()
114{
115 // dtor
8cb3533f 116
8cb3533f 117
990119d6 118}
119
120//____________________________________________________________________________
7b7c1533 121void AliPHOSDigitizer::Digitize(const Int_t event)
a4e98857 122{
123
124 // Makes the digitization of the collected summable digits.
125 // It first creates the array of all PHOS modules
126 // filled with noise (different for EMC, CPV and PPSD) and
127 // then adds contributions from SDigits.
128 // This design avoids scanning over the list of digits to add
129 // contribution to new SDigits only.
990119d6 130
7b7c1533 131 if( strcmp(GetName(), "") == 0 )
8cb3533f 132 Init() ;
990119d6 133
7b7c1533 134 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
135 TClonesArray * digits = gime->Digits() ;
136
137 digits->Clear() ;
990119d6 138
7b7c1533 139 const AliPHOSGeometry *geom = gime->PHOSGeometry() ;
990119d6 140
141 //Making digits with noise, first EMC
142 Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ();
143
144 Int_t nCPV ;
145 Int_t nPPSD ;
146 Int_t absID ;
147 TString name = geom->GetName() ;
148
149 if ( name == "IHEP" || name == "MIXT" )
150 nCPV =nEMC + geom->GetNumberOfCPVPadsZ()*geom->GetNumberOfCPVPadsPhi()*
151 geom->GetNCPVModules()*geom->GetNumberOfCPVLayers() ;
152 else
153 nCPV = nEMC;
154
155 if ( name == "GPS2" || name == "MIXT" )
156 nPPSD =nCPV+2*geom->GetNPPSDModules()*geom->GetNumberOfModulesPhi()*geom->GetNumberOfModulesZ()*
157 geom->GetNumberOfPadsPhi()*geom->GetNumberOfPadsZ() ;
158 else
159 nPPSD = nCPV;
8cb3533f 160
161
7b7c1533 162 digits->Expand(nPPSD) ;
8cb3533f 163
7b7c1533 164
165 // sdigitize random gaussian noise and add it to all cells (EMCA+CPV+PPSD)
166 // get first the sdigitizer from the tasks list (must have same name as the digitizer)
167 const AliPHOSSDigitizer * sDigitizer = gime->SDigitizer(GetName());
168 if ( !sDigitizer) {
169 cerr << "ERROR: AliPHOSDigitizer::Digitize -> SDigitizer with name " << GetName() << " not found " << endl ;
170 abort() ;
171 }
990119d6 172 for(absID = 1; absID <= nEMC; absID++){
173 Float_t noise = gRandom->Gaus(0., fPinNoise) ;
7b7c1533 174 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise) ) ;
990119d6 175 }
176
177 for(absID = nEMC+1; absID <= nCPV; absID++){
178 Float_t noise = gRandom->Gaus(0., fCPVNoise) ;
7b7c1533 179 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise) ) ;
990119d6 180 }
181
182 for(absID = nCPV+1; absID <= nPPSD; absID++){
183 Float_t noise = gRandom->Gaus(0., fPPSDNoise) ;
7b7c1533 184 new((*digits)[absID-1]) AliPHOSDigit( -1,absID,sDigitizer->Digitize(noise) ) ;
990119d6 185 }
186
7b7c1533 187 // loop through the sdigits posted to the White Board and add them to the noise
188 TCollection * folderslist = ((TFolder*)gROOT->FindObjectAny("YSAlice/WhiteBoard/SDigits/PHOS"))->GetListOfFolders() ;
189 TIter next(folderslist) ;
190 TFolder * folder = 0 ;
191 TClonesArray * sdigits = 0 ;
192 TString eventS ;
193 eventS += event ;
194 while ( (folder = (TFolder*)next()) ) {
03358e3b 195 if ( (strcmp(folder->GetTitle(), eventS.Data()) == 0) || (strcmp(folder->GetTitle(), "") == 0) ) {
7b7c1533 196 Int_t numberoffiles = 0 ;
197 if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
03358e3b 198 cout << "INFO: AliPHOSDigitizer::Digitize -> Adding SDigits " << GetName() << " from " << folder->GetName() << endl ;
7b7c1533 199 numberoffiles++ ;
200 Int_t index ;
201 AliPHOSDigit * curSDigit ;
202 AliPHOSDigit * digit ;
203 for ( index = 0 ; index < sdigits->GetEntriesFast(); index++) {
204 curSDigit = (AliPHOSDigit*)sdigits->At(index) ;
205 curSDigit->ShiftPrimary(numberoffiles) ;
206 digit = (AliPHOSDigit*)digits->At(curSDigit->GetId() - 1 ) ;
207 *digit = *digit + *curSDigit ;
208 }
209 }
210 }
990119d6 211 }
990119d6 212 //remove digits below thresholds
213 for(absID = 0; absID < nEMC ; absID++)
7b7c1533 214 if(sDigitizer->Calibrate(((AliPHOSDigit*)digits->At(absID))->GetAmp()) < fEMCDigitThreshold)
215 digits->RemoveAt(absID) ;
216
990119d6 217 for(absID = nEMC; absID < nCPV ; absID++)
7b7c1533 218 if(sDigitizer->Calibrate(((AliPHOSDigit*)digits->At(absID))->GetAmp()) < fCPVDigitThreshold)
219 digits->RemoveAt(absID) ;
220
990119d6 221 for(absID = nCPV; absID < nPPSD ; absID++)
7b7c1533 222 if(sDigitizer->Calibrate(((AliPHOSDigit *)digits->At(absID))->GetAmp()) < fPPSDDigitThreshold)
223 digits->RemoveAt(absID) ;
990119d6 224
7b7c1533 225 digits->Compress() ;
990119d6 226
7b7c1533 227 Int_t ndigits = digits->GetEntriesFast() ;
8cb3533f 228
7b7c1533 229 digits->Expand(ndigits) ;
990119d6 230
231
232 //Set indexes in list of digits
233 Int_t i ;
234 for (i = 0 ; i < ndigits ; i++) {
7b7c1533 235 AliPHOSDigit * digit = (AliPHOSDigit *) digits->At(i) ;
990119d6 236 digit->SetIndexInList(i) ;
237 }
990119d6 238
7b7c1533 239}
990119d6 240
7b7c1533 241//____________________________________________________________________________
242void AliPHOSDigitizer::Exec(Option_t *option)
243{
244 // Managing method
990119d6 245
7b7c1533 246 if( strcmp(GetName(), "") == 0 )
247 Init() ;
8cb3533f 248
7b7c1533 249 if (strstr(option,"print")) {
250 Print("");
251 return ;
8cb3533f 252 }
990119d6 253
7b7c1533 254 if(strstr(option,"tim"))
255 gBenchmark->Start("PHOSDigitizer");
8cb3533f 256
7b7c1533 257 //Check, if this branch already exits
258 TObjArray * lob = (TObjArray*)gAlice->TreeD()->GetListOfBranches() ;
259 TIter next(lob) ;
260 TBranch * branch = 0 ;
261 Bool_t phosfound = kFALSE, digitizerfound = kFALSE ;
8cb3533f 262
7b7c1533 263 while ( (branch = (TBranch*)next()) && (!phosfound || !digitizerfound) ) {
264 if ( (strcmp(branch->GetName(), "PHOS")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
265 phosfound = kTRUE ;
8cb3533f 266
7b7c1533 267 else if ( (strcmp(branch->GetName(), "AliPHOSDigitizer")==0) && (strcmp(branch->GetTitle(), GetName())==0) )
268 digitizerfound = kTRUE ;
8cb3533f 269 }
990119d6 270
7b7c1533 271 if ( phosfound || digitizerfound ) {
272 cerr << "WARNING: AliPHOSDigitizer::WriteDigits -> Digits and/or Digitizer branch with name " << GetName()
273 << " already exits" << endl ;
274 return ;
275 }
eec3ac52 276
7b7c1533 277 Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
278 Int_t ievent ;
bca3b32a 279
7b7c1533 280 for(ievent = 0; ievent < nevents; ievent++){
bca3b32a 281
01a599c9 282 gAlice->GetEvent(ievent);
283 gAlice->SetEvent(ievent) ;
7b7c1533 284 if(!ReadSDigits(ievent)) //read sdigits event(s) evaluated by Combinator() from file(s)
01a599c9 285 continue ;
990119d6 286
7b7c1533 287 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
8cb3533f 288
7b7c1533 289 WriteDigits(ievent) ;
7b7c1533 290
01a599c9 291 if(strstr(option,"deb"))
292 PrintDigits(option);
293 }
990119d6 294
8cb3533f 295 if(strstr(option,"tim")){
296 gBenchmark->Stop("PHOSDigitizer");
297 cout << "AliPHOSDigitizer:" << endl ;
298 cout << " took " << gBenchmark->GetCpuTime("PHOSDigitizer") << " seconds for SDigitizing "
7b7c1533 299 << gBenchmark->GetCpuTime("PHOSDigitizer") << " seconds per event " << endl ;
300 // << gBenchmark->GetCpuTime("PHOSDigitizer")/(fIeventMax->At(0)) << " seconds per event " << endl ;
8cb3533f 301 cout << endl ;
302 }
990119d6 303
304}
305
7b7c1533 306//____________________________________________________________________________
307void AliPHOSDigitizer::Init()
a4e98857 308{
7b7c1533 309 // Makes all memory allocations
310 // Adds Digitizer task to the folder of PHOS tasks
311 //============================================================= YS
312 // The initialisation is now done by AliPHOSGetter
8cb3533f 313
7b7c1533 314 if( strcmp(GetTitle(), "") == 0 )
315 SetTitle("galice.root") ;
316
317
318 // the SDigits name is stored by AliPHOSGetter as the name of the TClones Array
319 // //YSAlice/WhiteBoard/SDigits/PHOS/headerFile/branchname and has branchTitle as title.
990119d6 320
7b7c1533 321 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
322 if ( gime == 0 ) {
323 cerr << "ERROR: AliPHOSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
324 return ;
325 }
326
327// fIevent = new TArrayI(1) ;
328// fIevent->AddAt(-1,0 ) ;
329// fIeventMax = new TArrayI(1) ;
990119d6 330
7b7c1533 331// fIeventMax->AddAt((Int_t) gAlice->TreeE()->GetEntries(), 0 );
332
333 //add Task to //YSAlice/tasks/Digitizer/PHOS
334 TTask * aliceSD = (TTask*)gROOT->FindObjectAny("YSAlice/tasks/Digitizer") ;
335 TTask * phosSD = (TTask*)aliceSD->GetListOfTasks()->FindObject("PHOS") ;
336 phosSD->Add(this) ;
337 // create a folder on the white board //YSAlice/WhiteBoard/Digits/PHOS/headerFile/digitsTitle
338 gime->Post(GetTitle(), "D", GetName() ) ;
990119d6 339
340}
7b7c1533 341
990119d6 342//__________________________________________________________________
7b7c1533 343void AliPHOSDigitizer::MixWith(const char* headerFile)
a4e98857 344{
345 // Alows to produce digits by superimposing background and signal event.
bca3b32a 346 // It is assumed, that headers file with SIGNAL events is opened in
a4e98857 347 // the constructor.
348 // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
349 // Thus we avoid writing (changing) huge and expensive
bca3b32a 350 // backgound files: all output will be writen into SIGNAL, i.e.
351 // opened in constructor file.
352 //
a4e98857 353 // One can open as many files to mix with as one needs.
7b7c1533 354 // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
355 // can be mixed.
bca3b32a 356
7b7c1533 357 if( strcmp(GetName(), "") == 0 )
8cb3533f 358 Init() ;
359
7b7c1533 360 const char* sDigitsTitle = GetName() ;
361
362 // check if the specified SDigits do not already exist on the White Board:
363 // //YSAlice/WhiteBoard/SDigits/PHOS/headerFile/sDigitsTitle
990119d6 364
7b7c1533 365 TString path = "YSAlice/WhiteBoard/SDigits/PHOS/" ;
366 path += headerFile ;
367 path += "/" ;
368 path += sDigitsTitle ;
369 if ( gROOT->FindObjectAny(path.Data()) ) {
370 cerr << "WARNING: AliPHOSDigitizer::MixWith -> Entry already exists, do not add" << endl ;
371 return;
990119d6 372 }
7b7c1533 373 // check if the requested file is already open or exist and if SDigits Branch exist
374 TFile * file = (TFile*)gROOT->FindObject(headerFile);
375 if ( !file ) {
376 file = new TFile(headerFile, "READ") ;
377 if (!file) {
378 cerr << "ERROR: AliPHOSDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
379 return ;
380 }
381 }
03358e3b 382
383 // Read the first event with SDigits from the file-to-mix and post it to SDigits folder
384
385 Int_t ievent =0 ;
386 TString tsname("TreeS") ;
387 tsname += ievent ;
388 TTree * ts = (TTree*)file->Get(tsname.Data()) ;
389 if ( !ts ) {
390 cerr << "ERROR: AliPHOSDigitizer::MixWith -> TreeS0 " << " does not exist in " << headerFile << endl ;
391 return ;
392 }
7b7c1533 393
03358e3b 394 TObjArray * lob = (TObjArray*)ts->GetListOfBranches() ;
395 TIter next(lob) ;
396 TBranch * branch = 0 ;
397 TBranch * sdigitsbranch = 0 ;
398 TBranch * sdigitizerbranch = 0 ;
399 Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
7b7c1533 400
03358e3b 401 while ( (branch = (TBranch*)next()) && (!phosfound || !sdigitizerfound) ) {
402 if ( (strcmp(branch->GetName(), "PHOS")==0) && (strcmp(branch->GetTitle(), sDigitsTitle)==0) ) {
403 sdigitsbranch = branch ;
404 phosfound = kTRUE ;
405 }
406 else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && (strcmp(branch->GetTitle(), sDigitsTitle)==0) ) {
407 sdigitizerbranch = branch ;
408 sdigitizerfound = kTRUE ;
7b7c1533 409 }
03358e3b 410 }
7b7c1533 411
03358e3b 412 if ( !phosfound || !sdigitizerfound ) {
413 cerr << "WARNING: AliPHOSDigitizer::MixWith -> Cannot find SDigits and/or SDigitizer with name " << sDigitsTitle << endl ;
414 return ;
415 }
7b7c1533 416
03358e3b 417 // post the new SDigits to the White Board
418 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
419 gime->Post(headerFile, "S", sDigitsTitle) ;
420 TClonesArray * sdigits = gime->SDigits(sDigitsTitle, headerFile) ;
421 sdigitsbranch->SetAddress(&sdigits) ;
422 sdigitsbranch->GetEvent(0) ;
990119d6 423}
7b7c1533 424
990119d6 425//__________________________________________________________________
dd5c4038 426void AliPHOSDigitizer::Print(Option_t* option)const {
427 // Print Digitizer's parameters
7b7c1533 428 if( strcmp(GetName(), "") != 0 ){
8cb3533f 429
430 cout << "------------------- "<< GetName() << " -------------" << endl ;
431 cout << "Digitizing sDigits from file(s): " <<endl ;
7b7c1533 432
433 TCollection * folderslist = ((TFolder*)gROOT->FindObjectAny("YSAlice/WhiteBoard/SDigits/PHOS"))->GetListOfFolders() ;
434 TIter next(folderslist) ;
435 TFolder * folder = 0 ;
436
437 while ( (folder = (TFolder*)next()) ) {
438 if ( folder->FindObject(GetName()) )
439 cout << "Adding SDigits " << GetName() << " from " << folder->GetName() << endl ;
8cb3533f 440 }
441 cout << endl ;
7b7c1533 442 cout << "Writing digits to " << GetTitle() << endl ;
8cb3533f 443
444 cout << endl ;
445 cout << "With following parameters: " << endl ;
446 cout << " Electronics noise in EMC (fPinNoise) = " << fPinNoise << endl ;
447 cout << " Threshold in EMC (fEMCDigitThreshold) = " << fEMCDigitThreshold << endl ; ;
448 cout << " Noise in CPV (fCPVNoise) = " << fCPVNoise << endl ;
449 cout << " Threshold in CPV (fCPVDigitThreshold) = " << fCPVDigitThreshold << endl ;
450 cout << " Noise in PPSD (fPPSDNoise) = " << fPPSDNoise << endl ;
451 cout << " Threshold in PPSD (fPPSDDigitThreshold) = " << fPPSDDigitThreshold << endl ;
452 cout << "---------------------------------------------------" << endl ;
990119d6 453 }
8cb3533f 454 else
455 cout << "AliPHOSDigitizer not initialized " << endl ;
456
457}
458//__________________________________________________________________
dd5c4038 459void AliPHOSDigitizer::PrintDigits(Option_t * option){
460 // Print a table of digits
a4e98857 461
7b7c1533 462 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
463 TClonesArray * digits = gime->Digits() ;
464
01a599c9 465 cout << "AliPHOSDigitiser: event " << gAlice->GetEvNumber() << endl ;
7b7c1533 466 cout << " Number of entries in Digits list " << digits->GetEntriesFast() << endl ;
990119d6 467 cout << endl ;
8cb3533f 468 if(strstr(option,"all")){
469
470 //loop over digits
471 AliPHOSDigit * digit;
472 cout << "Digit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl;
473 Int_t index ;
7b7c1533 474 for (index = 0 ; index < digits->GetEntries() ; index++) {
475 digit = (AliPHOSDigit * ) digits->At(index) ;
8cb3533f 476 cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " "
477 << setw(6) << digit->GetIndexInList() << " "
478 << setw(5) << digit->GetNprimary() <<" ";
479
480 Int_t iprimary;
481 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
482 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
483 cout << endl;
484 }
485
486 }
487}
7b7c1533 488
8cb3533f 489//__________________________________________________________________
a4e98857 490void AliPHOSDigitizer::SetSDigitsBranch(const char* title)
491{
bca3b32a 492 // we set title (comment) of the SDigits branch in the first! header file
7b7c1533 493 if( strcmp(GetName(), "") == 0 )
494 Init() ;
990119d6 495
7b7c1533 496 AliPHOSGetter::GetInstance()->SDigits()->SetName(title) ;
497
8cb3533f 498}
7b7c1533 499
8cb3533f 500//__________________________________________________________________
7b7c1533 501Bool_t AliPHOSDigitizer::ReadSDigits(Int_t event)
a4e98857 502{
7b7c1533 503 // Reads summable digits from the opened files for the particular set of events given by fIevent
504
505 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
8cb3533f 506
03358e3b 507 // loop over all opened files and read their SDigits to the White Board
508 TCollection * folderslist = ((TFolder*)gROOT->FindObjectAny("YSAlice/WhiteBoard/SDigits/PHOS"))->GetListOfFolders() ;
509 TIter next(folderslist) ;
510 TFolder * folder = 0 ;
511 TClonesArray * sdigits = 0 ;
512 while ( (folder = (TFolder*)next()) ) {
513 TFile * file = (TFile*)gROOT->GetFile(folder->GetName());
514 file->cd() ;
01a599c9 515
03358e3b 516 // Get SDigits Tree header from file
517 TString treeName("TreeS") ;
518 treeName += event ;
519 TTree * treeS = (TTree*)file->Get(treeName.Data());
520
521 if(treeS==0){
522 cerr << "ERROR: AliPHOSDigitizer::ReadSDigits There is no SDigit Tree" << endl;
523 return kFALSE;
524 }
7b7c1533 525
03358e3b 526 //set address of the SDigits and SDigitizer
527 TBranch * sdigitsBranch = 0;
528 TBranch * sdigitizerBranch = 0;
529 TBranch * branch = 0 ;
530 TObjArray * lob = (TObjArray*)treeS->GetListOfBranches() ;
531 TIter next(lob) ;
532 Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
533
534 while ( (branch = (TBranch*)next()) && (!phosfound || !sdigitizerfound) ) {
535 if ( (strcmp(branch->GetName(), "PHOS")==0) && (strcmp(branch->GetTitle(), GetName())==0) ) {
536 phosfound = kTRUE ;
537 sdigitsBranch = branch ;
538 }
539
540 else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && (strcmp(branch->GetTitle(), GetName())==0) ) {
541 sdigitizerfound = kTRUE ;
542 sdigitizerBranch = branch ;
543 }
7b7c1533 544 }
03358e3b 545 if ( !phosfound || !sdigitizerfound ) {
546 cerr << "WARNING: AliPHOSDigitizer::ReadSDigits -> Digits and/or Digitizer branch with name " << GetName()
547 << " not found" << endl ;
548 return kFALSE ;
549 }
7b7c1533 550
03358e3b 551
552 if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
553 sdigitsBranch->SetAddress(&sdigits) ;
554 sdigits->Clear();
555
556 AliPHOSSDigitizer * sdigitizer = gime->SDigitizer() ;
557 sdigitizerBranch->SetAddress(&sdigitizer) ;
558
559 sdigitsBranch->GetEntry(0) ;
560 sdigitizerBranch->GetEntry(0) ;
561
562 fPedestal = sdigitizer->GetPedestalParameter() ;
563 fSlope = sdigitizer->GetCalibrationParameter() ;
7b7c1533 564 }
03358e3b 565 }
7b7c1533 566
03358e3b 567 // After SDigits have been read from all files, return to the first one
568
569 next.Reset();
570 folder = (TFolder*)next();
571 TFile * file = (TFile*)gROOT->GetFile(folder->GetName());
572 file->cd() ;
01a599c9 573
574 return kTRUE ;
7b7c1533 575
576}
577
578//____________________________________________________________________________
579void AliPHOSDigitizer::Reset()
580{
581 // sets current event number to the first simulated event
582
583 if( strcmp(GetName(), "") == 0 )
584 Init() ;
585
586 // Int_t inputs ;
587// for(inputs = 0; inputs < fNinputs ;inputs++)
588// fIevent->AddAt(-1, inputs ) ;
589
590}
591
592//____________________________________________________________________________
593void AliPHOSDigitizer::WriteDigits(Int_t event)
594{
595
596 // Makes TreeD in the output file.
597 // Check if branch already exists:
598 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
599 // already existing branches.
600 // else creates branch with Digits, named "PHOS", title "...",
601 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
602 // and names of files, from which digits are made.
603
604 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
605 TClonesArray * digits = gime->Digits() ;
606
7b7c1533 607 if(gAlice->TreeD()==0)
608 gAlice->MakeTree("D") ;
609
610 // create new branches
611 // -- generate file name if necessary
612 char * file =0;
613 if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name
614 file = new char[strlen(gAlice->GetBaseFile())+20] ;
615 sprintf(file,"%s/PHOS.Digits.root",gAlice->GetBaseFile()) ;
616 }
617
618 TDirectory *cwd = gDirectory;
7b7c1533 619 // -- create Digits branch
620 Int_t bufferSize = 32000 ;
621 TBranch * digitsBranch = gAlice->TreeD()->Branch("PHOS",&digits,bufferSize);
622 digitsBranch->SetTitle(GetName());
623 if (file) {
624 digitsBranch->SetFile(file);
625 TIter next( digitsBranch->GetListOfBranches());
626 TBranch * sbr ;
627 while ((sbr=(TBranch*)next())) {
628 sbr->SetFile(file);
629 }
630 cwd->cd();
631 }
632
633 // -- Create Digitizer branch
634 Int_t splitlevel = 0 ;
635 AliPHOSDigitizer * d = gime->Digitizer(GetName()) ;
636 TBranch * digitizerBranch = gAlice->TreeD()->Branch("AliPHOSDigitizer", "AliPHOSDigitizer", &d,bufferSize,splitlevel);
637 digitizerBranch->SetTitle(GetName());
638 if (file) {
639 digitizerBranch->SetFile(file);
640 TIter next( digitizerBranch->GetListOfBranches());
641 TBranch * sbr;
642 while ((sbr=(TBranch*)next())) {
643 sbr->SetFile(file);
644 }
645 cwd->cd();
646 }
647
648
649 digitsBranch->Fill() ;
650 digitizerBranch->Fill() ;
651
652 gAlice->TreeD()->Write(0,kOverwrite) ;
653
654}