Elaborating split mode to write data only to the split files
[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 75ClassImp(AliPHOSSDigitizer)
76
77
78//____________________________________________________________________________
8d0f3f77 79 AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("","") {
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 ) {
fbf811ec 119 cerr << "ERROR: AliPHOSSDigitizer::Init -> Could not obtain the Getter object !"
120 << endl ;
7b7c1533 121 return ;
122 }
123
5ad40cd6 124 gime->PostSDigits( GetName(), GetTitle() ) ;
125
fbf811ec 126 fSplitFile = 0 ;
127 if(fToSplit){
128 // construct the name of the file as /path/PHOS.SDigits.root
129 // First - extract full path if necessary
130 TString sDigitsFileName(GetTitle()) ;
131 Ssiz_t islash = sDigitsFileName.Last('/') ;
132 if(islash<sDigitsFileName.Length())
133 sDigitsFileName.Remove(islash+1,sDigitsFileName.Length()) ;
134 else
135 sDigitsFileName="" ;
136 // Next - append the file name
137 sDigitsFileName+="PHOS.SDigits." ;
138 if((strcmp(GetName(),"Default")!=0)&&(strcmp(GetName(),"")!=0)){
139 sDigitsFileName+=GetName() ;
140 sDigitsFileName+="." ;
141 }
142 sDigitsFileName+="root" ;
143 // Finally - check if the file already opened or open the file
144 fSplitFile = static_cast<TFile*>(gROOT->GetFile(sDigitsFileName.Data()));
145 if(!fSplitFile)
146 fSplitFile = TFile::Open(sDigitsFileName.Data(),"update") ;
147 }
148
5ad40cd6 149 TString sdname(GetName() );
150 sdname.Append(":") ;
151 sdname.Append(GetTitle() ) ;
152 SetName(sdname) ;
153 gime->PostSDigitizer(this) ;
7acf6008 154}
7b7c1533 155
8d0f3f77 156//____________________________________________________________________________
157void AliPHOSSDigitizer::InitParameters()
158{
159 fA = 0;
160 fB = 10000000.;
161 fPrimThreshold = 0.01 ;
162 fSDigitsInRun = 0 ;
163 fSplitFile = 0 ;
fbf811ec 164 fToSplit = kFALSE ;
8d0f3f77 165}
166
990119d6 167//____________________________________________________________________________
a4e98857 168void AliPHOSSDigitizer::Exec(Option_t *option)
169{
170 // Collects all hits in the same active volume into digit
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");
267 cout << "AliPHOSSDigitizer:" << endl ;
268 cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing "
7b7c1533 269 << gBenchmark->GetCpuTime("PHOSSDigitizer")/nevents << " seconds per event " << endl ;
7acf6008 270 cout << endl ;
271 }
990119d6 272}
106fc2fa 273
990119d6 274//__________________________________________________________________
a4e98857 275void AliPHOSSDigitizer::SetSDigitsBranch(const char * title )
276{
277 // Setting title to branch SDigits
7b7c1533 278
279 TString stitle(title) ;
280
281 // check if branch with title already exists
7a9d98f9 282 TBranch * sdigitsBranch =
283 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("PHOS")) ;
284 TBranch * sdigitizerBranch =
285 static_cast<TBranch*>(gAlice->TreeS()->GetListOfBranches()->FindObject("AliPHOSSDigitizer")) ;
7b7c1533 286 const char * sdigitsTitle = sdigitsBranch ->GetTitle() ;
287 const char * sdigitizerTitle = sdigitizerBranch ->GetTitle() ;
288 if ( stitle.CompareTo(sdigitsTitle)==0 || stitle.CompareTo(sdigitizerTitle)==0 ){
289 cerr << "ERROR: AliPHOSSdigitizer::SetSDigitsBranch -> Cannot overwrite existing branch with title " << title << endl ;
290 return ;
291 }
292
293 cout << "AliPHOSSdigitizer::SetSDigitsBranch -> Changing SDigits file from " << GetName() << " to " << title << endl ;
294
295 SetName(title) ;
296
297 // Post to the WhiteBoard
298 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
5ad40cd6 299 gime->PostSDigits( title, GetTitle()) ;
990119d6 300}
7b7c1533 301
fbf811ec 302// //__________________________________________________________________
303// void AliPHOSSDigitizer::SetSplitFile(const TString splitFileName)
304// {
305// // Diverts the SDigits in a file separate from the hits file
106fc2fa 306
fbf811ec 307// TDirectory * cwd = gDirectory ;
c093f031 308
fbf811ec 309// if ( !(gAlice->GetTreeSFileName() == splitFileName) ) {
310// if (gAlice->GetTreeSFile() )
311// gAlice->GetTreeSFile()->Close() ;
312// }
c093f031 313
fbf811ec 314// fSplitFile = gAlice->InitTreeFile("S",splitFileName.Data());
315// fSplitFile->cd() ;
316// gAlice->Write(0, TObject::kOverwrite);
106fc2fa 317
fbf811ec 318// TTree *treeE = gAlice->TreeE();
319// if (!treeE) {
320// cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> No TreeE found "<<endl;
321// abort() ;
322// }
106fc2fa 323
fbf811ec 324// // copy TreeE
325// AliHeader *header = new AliHeader();
326// treeE->SetBranchAddress("Header", &header);
327// treeE->SetBranchStatus("*",1);
328// TTree *treeENew = treeE->CloneTree();
329// treeENew->Write(0, TObject::kOverwrite);
8d0f3f77 330
c093f031 331
fbf811ec 332// // copy AliceGeom
333// TGeometry *AliceGeom = static_cast<TGeometry*>(cwd->Get("AliceGeom"));
334// if (!AliceGeom) {
335// cerr << "ERROR: AliPHOSSDigitizer::SetSPlitFile -> AliceGeom was not found in the input file "<<endl;
336// abort() ;
337// }
338// AliceGeom->Write(0, TObject::kOverwrite);
c093f031 339
fbf811ec 340// gAlice->MakeTree("S",fSplitFile);
341// cwd->cd() ;
342// cout << "INFO: AliPHOSSDigitizer::SetSPlitMode -> SDigits will be stored in " << splitFileName.Data() << endl ;
8d0f3f77 343
fbf811ec 344// }
106fc2fa 345
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()) &&
fbf811ec 393 ((dynamic_cast<AliPHOSDigit *> (sdigits->At(index)))->GetId() <= maxEmc) ; index++) {
394 digit = dynamic_cast<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++) {
fbf811ec 417 digit = dynamic_cast<AliPHOSDigit *>( sdigits->At(index) ) ;
a6eedfad 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}