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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 | //_________________________________________________________________________ | |
19 | // This is a TTask that makes SDigits out of Hits | |
20 | // A Summable Digits is the sum of all hits originating | |
21 | // from one primary in one active cell | |
22 | // A threshold for assignment of the primary to SDigit is applied | |
23 | // SDigits are written to TreeS, branch "PHOS" | |
24 | // AliPHOSSDigitizer with all current parameters is written | |
25 | // to TreeS branch "AliPHOSSDigitizer". | |
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] AliPHOSSDigitizer * s = new AliPHOSSDigitizer("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("Pedestal 0.001") | |
37 | // // and write them into the new branch | |
38 | // root [4] s->ExecuteTask("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 | // | |
44 | //*-- Author : Dmitri Peressounko (SUBATECH & KI) | |
45 | ////////////////////////////////////////////////////////////////////////////// | |
46 | ||
47 | ||
48 | // --- ROOT system --- | |
49 | #include "TFile.h" | |
50 | #include "TTask.h" | |
51 | #include "TTree.h" | |
52 | #include "TSystem.h" | |
53 | #include "TROOT.h" | |
54 | #include "TFolder.h" | |
55 | #include "TBenchmark.h" | |
56 | // --- Standard library --- | |
57 | #include <iomanip.h> | |
58 | ||
59 | // --- AliRoot header files --- | |
60 | #include "AliRun.h" | |
61 | #include "AliPHOSDigit.h" | |
62 | #include "AliPHOSHit.h" | |
63 | #include "AliPHOSSDigitizer.h" | |
64 | ||
65 | ||
66 | ClassImp(AliPHOSSDigitizer) | |
67 | ||
68 | ||
69 | //____________________________________________________________________________ | |
70 | AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("AliPHOSSDigitizer","") | |
71 | { | |
72 | // ctor | |
73 | fA = 0; | |
74 | fB = 10000000. ; | |
75 | fPrimThreshold = 0.01 ; | |
76 | fNevents = 0 ; | |
77 | fSDigits = 0 ; | |
78 | fHits = 0 ; | |
79 | fIsInitialized = kFALSE ; | |
80 | ||
81 | } | |
82 | ||
83 | //____________________________________________________________________________ | |
84 | AliPHOSSDigitizer::AliPHOSSDigitizer(const char* headerFile, const char *sDigitsTitle):TTask("AliPHOSSDigitizer","") | |
85 | { | |
86 | // ctor | |
87 | fA = 0; | |
88 | fB = 10000000.; | |
89 | fPrimThreshold = 0.01 ; | |
90 | fNevents = 0 ; | |
91 | fSDigitsTitle = sDigitsTitle ; | |
92 | fHeadersFile = headerFile ; | |
93 | fSDigits = new TClonesArray("AliPHOSDigit",1000); | |
94 | fHits = new TClonesArray("AliPHOSHit",1000); | |
95 | ||
96 | TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ; | |
97 | ||
98 | //File was not opened yet | |
99 | if(file == 0){ | |
100 | if(fHeadersFile.Contains("rfio")) | |
101 | file = TFile::Open(fHeadersFile,"update") ; | |
102 | else | |
103 | file = new TFile(fHeadersFile.Data(),"update") ; | |
104 | gAlice = (AliRun *) file->Get("gAlice") ; | |
105 | } | |
106 | ||
107 | //add Task to //root/Tasks folder | |
108 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
109 | TTask * phostasks = (TTask*)(roottasks->GetListOfTasks()->FindObject("PHOS")); | |
110 | phostasks->Add(this) ; | |
111 | ||
112 | fIsInitialized = kTRUE ; | |
113 | } | |
114 | ||
115 | //____________________________________________________________________________ | |
116 | AliPHOSSDigitizer::~AliPHOSSDigitizer() | |
117 | { | |
118 | // dtor | |
119 | if(fSDigits) | |
120 | delete fSDigits ; | |
121 | if(fHits) | |
122 | delete fHits ; | |
123 | } | |
124 | //____________________________________________________________________________ | |
125 | void AliPHOSSDigitizer::Init() | |
126 | { | |
127 | // Initialization can not be done in the default constructor | |
128 | ||
129 | if(!fIsInitialized){ | |
130 | ||
131 | if(fHeadersFile.IsNull()) | |
132 | fHeadersFile="galice.root" ; | |
133 | ||
134 | TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ; | |
135 | ||
136 | //if file was not opened yet, read gAlice | |
137 | if(file == 0){ | |
138 | file = new TFile(fHeadersFile.Data(),"update") ; | |
139 | gAlice = (AliRun *) file->Get("gAlice") ; | |
140 | } | |
141 | ||
142 | fHits = new TClonesArray("AliPHOSHit",1000); | |
143 | fSDigits = new TClonesArray("AliPHOSDigit",1000); | |
144 | ||
145 | // add Task to //root/Tasks folder | |
146 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
147 | TTask * phostasks = (TTask*)(roottasks->GetListOfTasks()->FindObject("PHOS")); | |
148 | phostasks->Add(this) ; | |
149 | ||
150 | fIsInitialized = kTRUE ; | |
151 | } | |
152 | } | |
153 | //____________________________________________________________________________ | |
154 | void AliPHOSSDigitizer::Exec(Option_t *option) | |
155 | { | |
156 | // Collects all hits in the same active volume into digit | |
157 | ||
158 | if(!fIsInitialized) | |
159 | Init() ; | |
160 | ||
161 | if(strstr(option,"tim")) | |
162 | gBenchmark->Start("PHOSSDigitizer"); | |
163 | ||
164 | fNevents = (Int_t) gAlice->TreeE()->GetEntries() ; | |
165 | ||
166 | Int_t ievent ; | |
167 | for(ievent = 0; ievent < fNevents; ievent++){ | |
168 | gAlice->GetEvent(ievent) ; | |
169 | gAlice->SetEvent(ievent) ; | |
170 | ||
171 | if(gAlice->TreeH()==0){ | |
172 | cout << "AliPHOSSDigitizer: There is no Hit Tree" << endl; | |
173 | return ; | |
174 | } | |
175 | ||
176 | //set address of the hits | |
177 | TBranch * branch = gAlice->TreeH()->GetBranch("PHOS"); | |
178 | if (branch) | |
179 | branch->SetAddress(&fHits); | |
180 | else{ | |
181 | cout << "ERROR in AliPHOSSDigitizer: "<< endl ; | |
182 | cout << " no branch PHOS in TreeH"<< endl ; | |
183 | cout << " do nothing " << endl ; | |
184 | return ; | |
185 | } | |
186 | ||
187 | fSDigits->Clear(); | |
188 | Int_t nSdigits = 0 ; | |
189 | ||
190 | ||
191 | //Now made SDigits from hits, for PHOS it is the same, so just copy | |
192 | Int_t itrack ; | |
193 | for (itrack=0; itrack < gAlice->GetNtrack(); itrack++){ | |
194 | ||
195 | //=========== Get the PHOS branch from Hits Tree for the Primary track itrack | |
196 | branch->GetEntry(itrack,0); | |
197 | ||
198 | Int_t i; | |
199 | for ( i = 0 ; i < fHits->GetEntries() ; i++ ) { | |
200 | AliPHOSHit * hit = (AliPHOSHit*)fHits->At(i) ; | |
201 | ||
202 | // Assign primary number only if contribution is significant | |
203 | if( hit->GetEnergy() > fPrimThreshold) | |
204 | new((*fSDigits)[nSdigits]) AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ; | |
205 | else | |
206 | new((*fSDigits)[nSdigits]) AliPHOSDigit( -1 , hit->GetId(), Digitize( hit->GetEnergy() ) ) ; | |
207 | ||
208 | nSdigits++ ; | |
209 | ||
210 | } | |
211 | ||
212 | } // loop over tracks | |
213 | ||
214 | fSDigits->Sort() ; | |
215 | ||
216 | nSdigits = fSDigits->GetEntriesFast() ; | |
217 | fSDigits->Expand(nSdigits) ; | |
218 | ||
219 | Int_t i ; | |
220 | for (i = 0 ; i < nSdigits ; i++) { | |
221 | AliPHOSDigit * digit = (AliPHOSDigit *) fSDigits->At(i) ; | |
222 | digit->SetIndexInList(i) ; | |
223 | } | |
224 | ||
225 | if(gAlice->TreeS() == 0) | |
226 | gAlice->MakeTree("S") ; | |
227 | ||
228 | //check, if this branch already exits? | |
229 | TBranch * sdigitsBranch = 0; | |
230 | TBranch * sdigitizerBranch = 0; | |
231 | ||
232 | TObjArray * branches = gAlice->TreeS()->GetListOfBranches() ; | |
233 | Int_t ibranch; | |
234 | Bool_t phosNotFound = kTRUE ; | |
235 | Bool_t sdigitizerNotFound = kTRUE ; | |
236 | ||
237 | for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){ | |
238 | ||
239 | if(phosNotFound){ | |
240 | sdigitsBranch=(TBranch *) branches->At(ibranch) ; | |
241 | if( (strcmp("PHOS",sdigitsBranch->GetName())==0 ) && | |
242 | (fSDigitsTitle.CompareTo(sdigitsBranch->GetTitle()) == 0) ) | |
243 | phosNotFound = kFALSE ; | |
244 | } | |
245 | if(sdigitizerNotFound){ | |
246 | sdigitizerBranch = (TBranch *) branches->At(ibranch) ; | |
247 | if( (strcmp(sdigitizerBranch->GetName(),"AliPHOSSDigitizer") == 0)&& | |
248 | (fSDigitsTitle.CompareTo(sdigitizerBranch->GetTitle()) == 0) ) | |
249 | sdigitizerNotFound = kFALSE ; | |
250 | } | |
251 | } | |
252 | ||
253 | if(!(sdigitizerNotFound && phosNotFound)){ | |
254 | cout << "AliPHOSSdigitizer error:" << endl ; | |
255 | cout << "Can not overwrite existing branches: do not write" << endl ; | |
256 | return ; | |
257 | } | |
258 | ||
259 | //Make (if necessary) branches | |
260 | char * file =0; | |
261 | if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name | |
262 | file = new char[strlen(gAlice->GetBaseFile())+20] ; | |
263 | sprintf(file,"%s/PHOS.SDigits.root",gAlice->GetBaseFile()) ; | |
264 | } | |
265 | ||
266 | TDirectory *cwd = gDirectory; | |
267 | ||
268 | //First list of sdigits | |
269 | Int_t bufferSize = 32000 ; | |
270 | sdigitsBranch = gAlice->TreeS()->Branch("PHOS",&fSDigits,bufferSize); | |
271 | sdigitsBranch->SetTitle(fSDigitsTitle.Data()); | |
272 | if (file) { | |
273 | sdigitsBranch->SetFile(file); | |
274 | TIter next( sdigitsBranch->GetListOfBranches()); | |
275 | TBranch * subbr; | |
276 | while ((subbr=(TBranch*)next())) { | |
277 | subbr->SetFile(file); | |
278 | } | |
279 | cwd->cd(); | |
280 | } | |
281 | ||
282 | //second - SDigitizer | |
283 | Int_t splitlevel = 0 ; | |
284 | AliPHOSSDigitizer * sd = this ; | |
285 | sdigitizerBranch = gAlice->TreeS()->Branch("AliPHOSSDigitizer","AliPHOSSDigitizer", | |
286 | &sd,bufferSize,splitlevel); | |
287 | sdigitizerBranch->SetTitle(fSDigitsTitle.Data()); | |
288 | if (file) { | |
289 | sdigitizerBranch->SetFile(file); | |
290 | TIter next( sdigitizerBranch->GetListOfBranches()); | |
291 | TBranch * subbr ; | |
292 | while ((subbr=(TBranch*)next())) { | |
293 | subbr->SetFile(file); | |
294 | } | |
295 | cwd->cd(); | |
296 | delete file; | |
297 | } | |
298 | ||
299 | sdigitsBranch->Fill() ; | |
300 | sdigitizerBranch->Fill() ; | |
301 | gAlice->TreeS()->Write(0,TObject::kOverwrite) ; | |
302 | ||
303 | if(strstr(option,"deb")) | |
304 | PrintSDigits(option) ; | |
305 | ||
306 | } | |
307 | ||
308 | if(strstr(option,"tim")){ | |
309 | gBenchmark->Stop("PHOSSDigitizer"); | |
310 | cout << "AliPHOSSDigitizer:" << endl ; | |
311 | cout << " took " << gBenchmark->GetCpuTime("PHOSSDigitizer") << " seconds for SDigitizing " | |
312 | << gBenchmark->GetCpuTime("PHOSSDigitizer")/fNevents << " seconds per event " << endl ; | |
313 | cout << endl ; | |
314 | } | |
315 | ||
316 | ||
317 | } | |
318 | //__________________________________________________________________ | |
319 | void AliPHOSSDigitizer::SetSDigitsBranch(const char * title ) | |
320 | { | |
321 | // Setting title to branch SDigits | |
322 | if(!fSDigitsTitle.IsNull()) | |
323 | cout << "AliPHOSSdigitizer: changing SDigits file from " <<fSDigitsTitle.Data() << " to " << title << endl ; | |
324 | fSDigitsTitle=title ; | |
325 | } | |
326 | //__________________________________________________________________ | |
327 | void AliPHOSSDigitizer::Print(Option_t* option)const | |
328 | { | |
329 | // Prints parameters of SDigitizer | |
330 | cout << "------------------- "<< GetName() << " -------------" << endl ; | |
331 | cout << " Writing SDigitis to branch with title " << fSDigitsTitle.Data() << endl ; | |
332 | cout << " with digitization parameters A = " << fA << endl ; | |
333 | cout << " B = " << fB << endl ; | |
334 | cout << " Threshold for Primary assignment= " << fPrimThreshold << endl ; | |
335 | cout << "---------------------------------------------------"<<endl ; | |
336 | ||
337 | } | |
338 | //__________________________________________________________________ | |
339 | Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const | |
340 | { | |
341 | // Equal operator. | |
342 | // SDititizers are equal if their pedestal, slope and threshold are equal | |
343 | ||
344 | if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold)) | |
345 | return kTRUE ; | |
346 | else | |
347 | return kFALSE ; | |
348 | } | |
349 | //__________________________________________________________________ | |
350 | void AliPHOSSDigitizer::PrintSDigits(Option_t * option) | |
351 | { | |
352 | // Prints list of digits produced in the current pass of AliPHOSDigitizer | |
353 | ||
354 | cout << "AliPHOSSDigitizer: " << endl ; | |
355 | cout << " Number of entries in SDigits list " << fSDigits->GetEntriesFast() << endl ; | |
356 | cout << endl ; | |
357 | ||
358 | if(strstr(option,"all")){// print all digits | |
359 | ||
360 | //loop over digits | |
361 | AliPHOSDigit * digit; | |
362 | cout << "SDigit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl; | |
363 | Int_t index ; | |
364 | for (index = 0 ; index < fSDigits->GetEntries() ; index++) { | |
365 | digit = (AliPHOSDigit * ) fSDigits->At(index) ; | |
366 | cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " " | |
367 | << setw(6) << digit->GetIndexInList() << " " | |
368 | << setw(5) << digit->GetNprimary() <<" "; | |
369 | ||
370 | Int_t iprimary; | |
371 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) | |
372 | cout << setw(5) << digit->GetPrimary(iprimary+1) << " "; | |
373 | cout << endl; | |
374 | } | |
375 | ||
376 | } | |
377 | } |