Displaced a cd()... Not sure if it makes any difference
[u/mrichter/AliRoot.git] / PHOS / AliPHOSSDigitizer.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
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 ---
7acf6008 64#include <iomanip.h>
990119d6 65
66// --- AliRoot header files ---
7acf6008 67#include "AliRun.h"
106fc2fa 68#include "AliHeader.h"
990119d6 69#include "AliPHOSDigit.h"
a6eedfad 70#include "AliPHOSGeometry.h"
7b7c1533 71#include "AliPHOSGetter.h"
990119d6 72#include "AliPHOSHit.h"
990119d6 73#include "AliPHOSSDigitizer.h"
74
990119d6 75
76ClassImp(AliPHOSSDigitizer)
77
78
79//____________________________________________________________________________
7b7c1533 80 AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","")
990119d6 81{
82 // ctor
2bd5457f 83 fA = 0;
84 fB = 10000000.;
990119d6 85 fPrimThreshold = 0.01 ;
2b60655b 86 fSDigitsInRun = 0 ;
c093f031 87 fSplitFile = 0 ;
990119d6 88}
7acf6008 89
990119d6 90//____________________________________________________________________________
7b7c1533 91AliPHOSSDigitizer::AliPHOSSDigitizer(const char * headerFile, const char * sDigitsTitle):TTask(sDigitsTitle, headerFile)
990119d6 92{
93 // ctor
2bd5457f 94 fA = 0;
95 fB = 10000000.;
990119d6 96 fPrimThreshold = 0.01 ;
106fc2fa 97 fSDigitsInRun = 0 ;
c093f031 98 fSplitFile = 0 ;
2bd5457f 99 Init();
990119d6 100}
101
c093f031 102//____________________________________________________________________________
103AliPHOSSDigitizer::~AliPHOSSDigitizer()
104{
105 if (fSplitFile)
106 if ( fSplitFile->IsOpen() )
107 fSplitFile->Close() ;
108}
7b7c1533 109
7acf6008 110//____________________________________________________________________________
a4e98857 111void AliPHOSSDigitizer::Init()
112{
2bd5457f 113 // Initialization: open root-file, allocate arrays for hits and sdigits,
114 // attach task SDigitizer to the list of PHOS tasks
115 //
a4e98857 116 // Initialization can not be done in the default constructor
7b7c1533 117 //============================================================= YS
118 // The initialisation is now done by AliPHOSGetter
119
120 if( strcmp(GetTitle(), "") == 0 )
121 SetTitle("galice.root") ;
85f78bbc 122
7b7c1533 123 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), GetName()) ;
124 if ( gime == 0 ) {
125 cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !" << endl ;
126 return ;
127 }
128
5ad40cd6 129 gime->PostSDigits( GetName(), GetTitle() ) ;
130
131 TString sdname(GetName() );
132 sdname.Append(":") ;
133 sdname.Append(GetTitle() ) ;
134 SetName(sdname) ;
135 gime->PostSDigitizer(this) ;
7acf6008 136}
7b7c1533 137
990119d6 138//____________________________________________________________________________
a4e98857 139void AliPHOSSDigitizer::Exec(Option_t *option)
140{
141 // Collects all hits in the same active volume into digit
7b7c1533 142 if( strcmp(GetName(), "") == 0 )
7acf6008 143 Init() ;
7b7c1533 144
145 if (strstr(option, "print") ) {
146 Print("") ;
147 return ;
148 }
990119d6 149
7acf6008 150 if(strstr(option,"tim"))
151 gBenchmark->Start("PHOSSDigitizer");
7b7c1533 152
153 //Check, if this branch already exits
5ad40cd6 154 gAlice->GetEvent(0) ;
a2d8b8a4 155
156 TString sdname(GetName()) ;
157 sdname.Remove(sdname.Index(GetTitle())-1) ;
158
5ad40cd6 159 if(gAlice->TreeS() ) {
7a9d98f9 160 TObjArray * lob = static_cast<TObjArray*>(gAlice->TreeS()->GetListOfBranches()) ;
5ad40cd6 161 TIter next(lob) ;
162 TBranch * branch = 0 ;
163 Bool_t phosfound = kFALSE, sdigitizerfound = kFALSE ;
7b7c1533 164
7a9d98f9 165 while ( (branch = (static_cast<TBranch*>(next()))) && (!phosfound || !sdigitizerfound) ) {
c093f031 166 TString thisName( GetName() ) ;
167 TString branchName( branch->GetTitle() ) ;
168 branchName.Append(":") ;
169 if ( (strcmp(branch->GetName(), "PHOS")==0) && thisName.BeginsWith(branchName) )
5ad40cd6 170 phosfound = kTRUE ;
c093f031 171 else if ( (strcmp(branch->GetName(), "AliPHOSSDigitizer")==0) && thisName.BeginsWith(branchName) )
5ad40cd6 172 sdigitizerfound = kTRUE ;
173 }
174
175 if ( phosfound || sdigitizerfound ) {
176 cerr << "WARNING: AliPHOSSDigitizer::Exec -> SDigits and/or SDigitizer branch with name " << GetName()
177 << " already exits" << endl ;
178 return ;
179 }
180 }
7b7c1533 181
7b7c1533 182 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
183
7b7c1533 184 Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ;
990119d6 185
186 Int_t ievent ;
7b7c1533 187 for(ievent = 0; ievent < nevents; ievent++){
5ad40cd6 188 gime->Event(ievent,"H") ;
017addb3 189 const TClonesArray * hits = gime->Hits() ;
5ad40cd6 190 TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533 191 sdigits->Clear();
990119d6 192 Int_t nSdigits = 0 ;
193
990119d6 194
7b7c1533 195 //Now make SDigits from hits, for PHOS it is the same, so just copy
c093f031 196
3962b6a1 197 Int_t Nprim = (Int_t) (gAlice->TreeH())->GetEntries();
198 // Attention Nprim is the number of primaries tracked by Geant and this number could be different to the number of Primaries in TreeK;
199 Int_t iprim;
200 for (iprim=0; iprim<Nprim; iprim++) {
201 //=========== Get the PHOS branch from Hits Tree for the Primary iprim
202 gime->Track(iprim) ;
990119d6 203 Int_t i;
7b7c1533 204 for ( i = 0 ; i < hits->GetEntries() ; i++ ) {
7a9d98f9 205 AliPHOSHit * hit = dynamic_cast<AliPHOSHit *>(hits->At(i)) ;
990119d6 206 // Assign primary number only if contribution is significant
9688c1dd 207
990119d6 208 if( hit->GetEnergy() > fPrimThreshold)
9688c1dd 209 new((*sdigits)[nSdigits]) AliPHOSDigit(hit->GetPrimary(),hit->GetId(),
210 Digitize(hit->GetEnergy()), hit->GetTime()) ;
990119d6 211 else
9688c1dd 212 new((*sdigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(),
213 Digitize(hit->GetEnergy()), hit->GetTime()) ;
214 nSdigits++ ;
990119d6 215
9688c1dd 216 }
c093f031 217
3962b6a1 218 } // loop over iprim
990119d6 219
7b7c1533 220 sdigits->Sort() ;
990119d6 221
7b7c1533 222 nSdigits = sdigits->GetEntriesFast() ;
69866bef 223 fSDigitsInRun += nSdigits ;
7b7c1533 224 sdigits->Expand(nSdigits) ;
c093f031 225
3962b6a1 226 Int_t i ;
990119d6 227 for (i = 0 ; i < nSdigits ; i++) {
7a9d98f9 228 AliPHOSDigit * digit = dynamic_cast<AliPHOSDigit *>(sdigits->At(i)) ;
990119d6 229 digit->SetIndexInList(i) ;
230 }
3962b6a1 231
106fc2fa 232 if(gAlice->TreeS() == 0)
85f78bbc 233 gAlice->MakeTree("S", fSplitFile);
c093f031 234
7acf6008 235 //First list of sdigits
236 Int_t bufferSize = 32000 ;
7b7c1533 237 TBranch * sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&sdigits,bufferSize);
5ad40cd6 238 sdigitsBranch->SetTitle(sdname);
7acf6008 239
7b7c1533 240 //Next - SDigitizer
7acf6008 241 Int_t splitlevel = 0 ;
242 AliPHOSSDigitizer * sd = this ;
7b7c1533 243 TBranch * sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer",
7acf6008 244 &sd,bufferSize,splitlevel);
5ad40cd6 245 sdigitizerBranch->SetTitle(sdname);
c093f031 246
42d2745f 247 sdigitsBranch->Fill() ;
c093f031 248 sdigitizerBranch->Fill() ;
42d2745f 249 gAlice->TreeS()->AutoSave() ;
7acf6008 250
251 if(strstr(option,"deb"))
252 PrintSDigits(option) ;
c093f031 253
990119d6 254 }
c093f031 255
256 if (fSplitFile)
257 if ( fSplitFile->IsOpen() )
258 fSplitFile->Close() ;
7acf6008 259
c093f031 260
7acf6008 261 if(strstr(option,"tim")){
262 gBenchmark->Stop("PHOSSDigitizer");
263 cout << "AliPHOSSDigitizer:" << endl ;
264 cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
7b7c1533 265 << gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
7acf6008 266 cout << endl ;
267 }
268
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 ){
287 cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
288 return ;
289 }
290
291 cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
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//__________________________________________________________________
c093f031 301void AliPHOSSDigitizer::SetSplitFile(const TString splitFileName)
106fc2fa 302{
303 // Diverts the SDigits in a file separate from the hits file
304
305 TDirectory * cwd = gDirectory ;
c093f031 306
307 if ( !(gAlice->GetTreeSFileName() == splitFileName) ) {
308 if (gAlice->GetTreeSFile() )
309 gAlice->GetTreeSFile()->Close() ;
310 }
311
312 fSplitFile = gAlice->InitTreeFile("S",splitFileName.Data());
313 fSplitFile->cd() ;
314 if ( !fSplitFile->Get("gAlice") )
315 gAlice->Write();
106fc2fa 316
317 TTree *treeE = gAlice->TreeE();
318 if (!treeE) {
c093f031 319 cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
106fc2fa 320 abort() ;
321 }
322
323 // copy TreeE
c093f031 324 if ( !fSplitFile->Get("TreeE") ) {
325 AliHeader *header = new AliHeader();
326 treeE->SetBranchAddress("Header", &header);
327 treeE->SetBranchStatus("*",1);
328 TTree *treeENew = treeE->CloneTree();
329 treeENew->Write();
330 }
331
106fc2fa 332 // copy AliceGeom
c093f031 333 if ( !fSplitFile->Get("AliceGeom") ) {
334 TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
335 if (!AliceGeom) {
336 cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> AliceGeom was not found in the input file "<<endl;
337 abort() ;
338 }
339 AliceGeom->Write();
106fc2fa 340 }
c093f031 341
c093f031 342 gAlice->MakeTree("S",fSplitFile);
85f78bbc 343 cwd->cd() ;
106fc2fa 344}
345
990119d6 346//__________________________________________________________________
a4e98857 347void AliPHOSSDigitizer::Print(Option_t* option)const
348{
349 // Prints parameters of SDigitizer
990119d6 350 cout << "------------------- "<< GetName() << " -------------" << endl ;
7a9d98f9 351 cout << " Writing SDigits to branch with title " << GetName() << endl ;
7acf6008 352 cout << " with digitization parameters A = " << fA << endl ;
353 cout << " B = " << fB << endl ;
354 cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ;
990119d6 355 cout << "---------------------------------------------------"<<endl ;
7acf6008 356
990119d6 357}
358//__________________________________________________________________
a4e98857 359Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const
360{
3de072dc 361 // Equal operator.
362 // SDititizers are equal if their pedestal, slope and threshold are equal
363
990119d6 364 if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold))
365 return kTRUE ;
366 else
367 return kFALSE ;
368}
7acf6008 369//__________________________________________________________________
a6eedfad 370//__________________________________________________________________
a4e98857 371void AliPHOSSDigitizer::PrintSDigits(Option_t * option)
372{
373 // Prints list of digits produced in the current pass of AliPHOSDigitizer
7b7c1533 374
a6eedfad 375
7b7c1533 376 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6 377 TString sdname(GetName()) ;
378 sdname.Remove(sdname.Index(GetTitle())-1) ;
017addb3 379 const TClonesArray * sdigits = gime->SDigits(sdname.Data()) ;
7b7c1533 380
a6eedfad 381 cout << "AliPHOSSDigitiser: event " << gAlice->GetEvNumber() << endl ;
382 cout << " Number of entries in SDigits list " << sdigits->GetEntriesFast() << endl ;
7acf6008 383 cout << endl ;
a6eedfad 384 if(strstr(option,"all")||strstr(option,"EMC")){
7acf6008 385
386 //loop over digits
387 AliPHOSDigit * digit;
a6eedfad 388 cout << "EMC sdigits " << endl ;
389 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
390 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
7acf6008 391 Int_t index ;
a6eedfad 392 for (index = 0 ; (index < sdigits->GetEntriesFast()) &&
393 (((AliPHOSDigit * ) sdigits->At(index))->GetId() <= maxEmc) ; index++) {
7b7c1533 394 digit = (AliPHOSDigit * ) sdigits->At(index) ;
a6eedfad 395 if(digit->GetNprimary() == 0) continue;
396 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
397 << setw(6) << digit->GetIndexInList() << " "
398 << setw(5) << digit->GetNprimary() <<" ";
7acf6008 399
400 Int_t iprimary;
401 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
a6eedfad 402 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
7acf6008 403 cout << endl;
a6eedfad 404 }
405 cout << endl;
406 }
407
408 if(strstr(option,"all")||strstr(option,"CPV")){
7acf6008 409
a6eedfad 410 //loop over CPV digits
411 AliPHOSDigit * digit;
412 cout << "CPV sdigits " << endl ;
413 cout << "Digit Id Amplitude Index Nprim Primaries list " << endl;
414 Int_t maxEmc = gime->PHOSGeometry()->GetNModules()*gime->PHOSGeometry()->GetNCristalsInModule() ;
415 Int_t index ;
416 for (index = 0 ; index < sdigits->GetEntriesFast(); index++) {
417 digit = (AliPHOSDigit * ) sdigits->At(index) ;
418 if(digit->GetId() > maxEmc){
419 cout << setw(6) << digit->GetId() << " " << setw(10) << digit->GetAmp() << " "
420 << setw(6) << digit->GetIndexInList() << " "
421 << setw(5) << digit->GetNprimary() <<" ";
422
423 Int_t iprimary;
424 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
425 cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
426 cout << endl;
427 }
428 }
7acf6008 429 }
a6eedfad 430
7acf6008 431}
7b7c1533 432
433//____________________________________________________________________________
434void AliPHOSSDigitizer::UseHitsFrom(const char * filename)
435{
436 SetTitle(filename) ;
437 Init() ;
438}