removed iostream
[u/mrichter/AliRoot.git] / PHOS / AliPHOSSDigitizer.cxx
CommitLineData
990119d6 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
c093f031 16
990119d6 17/* $Id$ */
18
19//_________________________________________________________________________
7acf6008 20// This is a TTask that makes SDigits out of Hits
7b7c1533 21// The name of the TTask is also the title of the branch that will contain
22// the created SDigits
23// The title of the TTAsk is the name of the file that contains the hits from
24// which the SDigits are created
7acf6008 25// A Summable Digits is the sum of all hits originating
26// from one primary in one active cell
27// A threshold for assignment of the primary to SDigit is applied
28// SDigits are written to TreeS, branch "PHOS"
29// AliPHOSSDigitizer with all current parameters is written
30// to TreeS branch "AliPHOSSDigitizer".
f035f6ce 31// Both branches have the same title. If necessary one can produce
32// another set of SDigits with different parameters. Two versions
33// can be distunguished using titles of the branches.
34// User case:
a4e98857 35// root [0] AliPHOSSDigitizer * s = new AliPHOSSDigitizer("galice.root")
36// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
37// root [1] s->ExecuteTask()
f035f6ce 38// // Makes SDigitis for all events stored in galice.root
a4e98857 39// root [2] s->SetPedestalParameter(0.001)
f035f6ce 40// // One can change parameters of digitization
3de072dc 41// root [3] s->SetSDigitsBranch("Pedestal 0.001")
f035f6ce 42// // and write them into the new branch
3de072dc 43// root [4] s->ExecuteTask("deb all tim")
f035f6ce 44// // available parameters:
45// deb - print # of produced SDigitis
46// deb all - print # and list of produced SDigits
47// tim - print benchmarking information
990119d6 48//
49//*-- Author : Dmitri Peressounko (SUBATECH & KI)
50//////////////////////////////////////////////////////////////////////////////
51
f035f6ce 52
990119d6 53// --- ROOT system ---
7acf6008 54#include "TFile.h"
990119d6 55#include "TTask.h"
56#include "TTree.h"
57#include "TSystem.h"
7acf6008 58#include "TROOT.h"
59#include "TFolder.h"
60#include "TBenchmark.h"
106fc2fa 61#include "TGeometry.h"
62
990119d6 63// --- Standard library ---
64
65// --- AliRoot header files ---
7acf6008 66#include "AliRun.h"
106fc2fa 67#include "AliHeader.h"
990119d6 68#include "AliPHOSDigit.h"
a6eedfad 69#include "AliPHOSGeometry.h"
7b7c1533 70#include "AliPHOSGetter.h"
990119d6 71#include "AliPHOSHit.h"
990119d6 72#include "AliPHOSSDigitizer.h"
73
990119d6 74ClassImp(AliPHOSSDigitizer)
75
76
77//____________________________________________________________________________
548f0134 78 AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","")
79{
990119d6 80 // ctor
92f521a9 81 InitParameters() ;
82 fDefaultInit = kTRUE ;
990119d6 83}
7acf6008 84
990119d6 85//____________________________________________________________________________
fbf811ec 86AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle, const Bool_t toSplit):
87TTask(sDigitsTitle, headerFile)
990119d6 88{
89 // ctor
8d0f3f77 90 InitParameters() ;
fbf811ec 91 fToSplit = toSplit ;
2bd5457f 92 Init();
92f521a9 93 fDefaultInit = kFALSE ;
990119d6 94}
95
c093f031 96//____________________________________________________________________________
97AliPHOSSDigitizer::~AliPHOSSDigitizer()
98{
79bb1b62 99 // dtor
79bb1b62 100
8d0f3f77 101 fSplitFile = 0 ;
c093f031 102}
7b7c1533 103
7acf6008 104//____________________________________________________________________________
a4e98857 105void AliPHOSSDigitizer::Init()
106{
2bd5457f 107 // Initialization: open root-file, allocate arrays for hits and sdigits,
108 // attach task SDigitizer to the list of PHOS tasks
109 //
a4e98857 110 // Initialization can not be done in the default constructor
7b7c1533 111 //============================================================= YS
112 // The initialisation is now done by AliPHOSGetter
113
114 if( strcmp(GetTitle(), "") == 0 )
115 SetTitle("galice.root") ;
85f78bbc 116
fbf811ec 117 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName(),fToSplit) ;
7b7c1533 118 if ( gime == 0 ) {
21cd0c07 119 Error("Init" ,"Could not obtain the Getter object !") ;
7b7c1533 120 return ;
121 }
122
5ad40cd6 123 gime->PostSDigits( GetName(), GetTitle() ) ;
124
fbf811ec 125 fSplitFile = 0 ;
126 if(fToSplit){
127 // construct the name of the file as /path/PHOS.SDigits.root
128 // First - extract full path if necessary
129 TString sDigitsFileName(GetTitle()) ;
130 Ssiz_t islash = sDigitsFileName.Last('/') ;
131 if(islash<sDigitsFileName.Length())
132 sDigitsFileName.Remove(islash+1,sDigitsFileName.Length()) ;
133 else
134 sDigitsFileName="" ;
135 // Next - append the file name
136 sDigitsFileName+="PHOS.SDigits." ;
137 if((strcmp(GetName(),"Default")!=0)&&(strcmp(GetName(),"")!=0)){
138 sDigitsFileName+=GetName() ;
139 sDigitsFileName+="." ;
140 }
141 sDigitsFileName+="root" ;
142 // Finally - check if the file already opened or open the file
143 fSplitFile = static_cast<TFile*>(gROOT->GetFile(sDigitsFileName.Data()));
144 if(!fSplitFile)
145 fSplitFile = TFile::Open(sDigitsFileName.Data(),"update") ;
146 }
147
5ad40cd6 148 TString sdname(GetName() );
149 sdname.Append(":") ;
150 sdname.Append(GetTitle() ) ;
151 SetName(sdname) ;
152 gime->PostSDigitizer(this) ;
7acf6008 153}
7b7c1533 154
8d0f3f77 155//____________________________________________________________________________
156void AliPHOSSDigitizer::InitParameters()
157{
158 fA = 0;
159 fB = 10000000.;
160 fPrimThreshold = 0.01 ;
161 fSDigitsInRun = 0 ;
162 fSplitFile = 0 ;
fbf811ec 163 fToSplit = kFALSE ;
8d0f3f77 164}
165
990119d6 166//____________________________________________________________________________
a4e98857 167void AliPHOSSDigitizer::Exec(Option_t *option)
168{
169 // Collects all hits in the same active volume into digit
548f0134 170
7b7c1533 171 if( strcmp(GetName(), "") == 0 )
7acf6008 172 Init() ;
7b7c1533 173
174 if (strstr(option, "print") ) {
175 Print("") ;
176 return ;
177 }
990119d6 178
7acf6008 179 if(strstr(option,"tim"))
180 gBenchmark->Start("PHOSSDigitizer");
fbf811ec 181
7b7c1533 182 //Check, if this branch already exits
fbf811ec 183 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
184 if(gime->BranchExists("SDigits") )
185 return;
a2d8b8a4 186
187 TString sdname(GetName()) ;
188 sdname.Remove(sdname.Index(GetTitle())-1) ;
fbf811ec 189
190 Int_t nevents = gime->MaxEvent() ;
990119d6 191 Int_t ievent ;
7b7c1533 192 for(ievent = 0; ievent < nevents; ievent++){
5ad40cd6 193 gime->Event(ievent,"H") ;
017addb3 194 const TClonesArray * hits = gime->Hits() ;
5ad40cd6 195 TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533 196 sdigits->Clear();
990119d6 197 Int_t nSdigits = 0 ;
198
7b7c1533 199 //Now make SDigits from hits, for PHOS it is the same, so just copy
fbf811ec 200 Int_t nPrim = static_cast<Int_t>((gAlice->TreeH())->GetEntries()) ;
201 // Attention nPrim is the number of primaries tracked by Geant
202 // and this number could be different to the number of Primaries in TreeK;
203 Int_t iprim ;
204 for (iprim = 0 ; iprim < nPrim ; iprim ++) {
3962b6a1 205 //=========== Get the PHOS branch from Hits Tree for the Primary iprim
206 gime->Track(iprim) ;
990119d6 207 Int_t i;
7b7c1533 208 for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
7a9d98f9 209 AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ;
990119d6 210 // Assign primary number only if contribution is significant
9688c1dd 211
990119d6 212 if( hit->GetEnergy() > fPrimThreshold)
9688c1dd 213 new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(),
fbf811ec 214 Digitize(hit->GetEnergy()), hit->GetTime()) ;
990119d6 215 else
9688c1dd 216 new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(),
fbf811ec 217 Digitize(hit->GetEnergy()), hit->GetTime()) ;
9688c1dd 218 nSdigits++ ;
990119d6 219
9688c1dd 220 }
fbf811ec 221
3962b6a1 222 } // loop over iprim
990119d6 223
7b7c1533 224 sdigits->Sort() ;
990119d6 225
7b7c1533 226 nSdigits = sdigits->GetEntriesFast() ;
69866bef 227 fSDigitsInRun += nSdigits ;
7b7c1533 228 sdigits->Expand(nSdigits) ;
fbf811ec 229
3962b6a1 230 Int_t i ;
990119d6 231 for (i = 0 ; i < nSdigits ; i++) {
7a9d98f9 232 AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ;
990119d6 233 digit->SetIndexInList(i) ;
234 }
3962b6a1 235
fbf811ec 236 //Now write SDigits
237
238 if((gAlice->TreeS() == 0)|| (fSplitFile))
85f78bbc 239 gAlice->MakeTree("S", fSplitFile);
c093f031 240
fbf811ec 241 if(fSplitFile)
242 fSplitFile->cd() ;
243
7acf6008 244 //First list of sdigits
fbf811ec 245 Int_t bufferSize = 32000 ;
7b7c1533 246 TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
5ad40cd6 247 sdigitsBranch->SetTitle(sdname);
fbf811ec 248
7b7c1533 249 //Next - SDigitizer
7acf6008 250 Int_t splitlevel = 0 ;
251 AliPHOSSDigitizer * sd = this ;
7b7c1533 252 TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
fbf811ec 253 &sd,bufferSize,splitlevel);
5ad40cd6 254 sdigitizerBranch->SetTitle(sdname);
fbf811ec 255
256 sdigitsBranch->Fill() ;
c093f031 257 sdigitizerBranch->Fill() ;
fbf811ec 258
42d2745f 259 gAlice->TreeS()->AutoSave() ;
fbf811ec 260
7acf6008 261 if(strstr(option,"deb"))
262 PrintSDigits(option) ;
990119d6 263 }
fbf811ec 264
7acf6008 265 if(strstr(option,"tim")){
266 gBenchmark->Stop("PHOSSDigitizer");
21cd0c07 267 Info("Exec"," took %f seconds for SDigitizing %f seconds per event",
268 gBenchmark->GetCpuTime("PHOSSDigitizer"), gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents) ;
7acf6008 269 }
990119d6 270}
106fc2fa 271
990119d6 272//__________________________________________________________________
a4e98857 273void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
274{
275 // Setting title to branch SDigits
7b7c1533 276
277 TString stitle(title) ;
278
279 // check if branch with title already exists
7a9d98f9 280 TBranch * sdigitsBranch =
281 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ;
282 TBranch * sdigitizerBranch =
283 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ;
7b7c1533 284 const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
285 const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
286 if ( stitle.CompareTo(sdigitsTitle)==0 || stitle.CompareTo(sdigitizerTitle)==0 ){
21cd0c07 287 Error("SetSDigitsBranch", "Cannot overwrite existing branch with title %s", title) ;
7b7c1533 288 return ;
289 }
290
21cd0c07 291 Info("SetSDigitsBranch", "-> Changing SDigits file from %s to %s", GetName(), title) ;
7b7c1533 292
293 SetName(title) ;
294
295 // Post to the WhiteBoard
296 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6 297 gime->PostSDigits( title, GetTitle()) ;
990119d6 298}
7b7c1533 299
106fc2fa 300
301//__________________________________________________________________
a4e98857 302void AliPHOSSDigitizer::Print(Option_t* option)const
303{
304 // Prints parameters of SDigitizer
21cd0c07 305 TString message ;
306 message = "\n------------------- %s -------------\n" ;
307 message += " Writing SDigits to branch with title %s\n" ;
308 message += " with digitization parameters A = %f\n" ;
309 message += " B = %f\n" ;
310 message += " Threshold for Primary assignment= %f\n" ;
311 message += "---------------------------------------------------\n" ;
312 Info("Print", message.Data(), GetName(), GetName(), fA, fB, fPrimThreshold ) ;
7acf6008 313
990119d6 314}
548f0134 315
990119d6 316//__________________________________________________________________
a4e98857 317Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
318{
3de072dc 319 // Equal operator.
320 // SDititizers are equal if their pedestal, slope and threshold are equal
321
990119d6 322 if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
323 return kTRUE ;
324 else
325 return kFALSE ;
326}
548f0134 327
a6eedfad 328//__________________________________________________________________
a4e98857 329void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
330{
331 // Prints list of digits produced in the current pass of AliPHOSDigitizer
7b7c1533 332
a6eedfad 333
7b7c1533 334 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6 335 TString sdname(GetName()) ;
336 sdname.Remove(sdname.Index(GetTitle())-1) ;
21cd0c07 337 const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533 338
21cd0c07 339 TString message ;
340 message = "\nAliPHOSSDigitiser: event " ;
341 message += gAlice->GetEvNumber();
342 message += "\n Number of entries in SDigits list " ;
343 message += sdigits->GetEntriesFast() ;
344
a6eedfad 345 if(strstr(option,"all")||strstr(option,"EMC")){
7acf6008 346
347 //loop over digits
348 AliPHOSDigit * digit;
21cd0c07 349 message += "\nEMC sdigits\n" ;
350 message += "Digit Id Amplitude Index Nprim Primaries list\n" ;
a6eedfad 351 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
7acf6008 352 Int_t index ;
a6eedfad 353 for (index = 0 ; (index < sdigits->GetEntriesFast()) &&
fbf811ec 354 ((dynamic_cast<AliPHOSDigit *> (sdigits->At(index)))->GetId() <= maxEmc) ; index++) {
355 digit = dynamic_cast<AliPHOSDigit *>( sdigits->At(index) ) ;
21cd0c07 356 if(digit->GetNprimary() == 0)
357 continue;
358 message += digit->GetId() ;
359 message += digit->GetAmp() ;
360 message += digit->GetIndexInList() ;
361 message += digit->GetNprimary() ;
7acf6008 362 Int_t iprimary;
363 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
21cd0c07 364 message += digit->GetPrimary(iprimary+1) ;
a6eedfad 365 }
a6eedfad 366 }
367
368 if(strstr(option,"all")||strstr(option,"CPV")){
7acf6008 369
a6eedfad 370 //loop over CPV digits
371 AliPHOSDigit * digit;
21cd0c07 372
373 message += "CPV sdigits\n" ;
374 message += "Digit Id Amplitude Index Nprim Primaries list\n" ;
a6eedfad 375 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
376 Int_t index ;
377 for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
fbf811ec 378 digit = dynamic_cast<AliPHOSDigit *>( sdigits->At(index) ) ;
a6eedfad 379 if(digit->GetId() > maxEmc){
21cd0c07 380 message += "\n" ;
381 message += digit->GetId() ;
382 message += " " ;
383 message += digit->GetAmp() ;
384 message += " " ;
385 message += digit->GetIndexInList() ;
386 message += " " ;
387 message += digit->GetNprimary() ;
388 message += " " ;
a6eedfad 389 Int_t iprimary;
21cd0c07 390 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
391 message += digit->GetPrimary(iprimary+1) ;
392 message += "," ;
393 }
a6eedfad 394 }
395 }
7acf6008 396 }
21cd0c07 397 Info("PrintSDigits", message.Data() ) ;
7acf6008 398}
7b7c1533 399
400//____________________________________________________________________________
401void AliPHOSSDigitizer::UseHitsFrom(const char * filename)
402{
403 SetTitle(filename) ;
404 Init() ;
405}