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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 | // | |
20 | // AliRunDigitizer.cxx | |
21 | // | |
22 | // Manager object for merging/digitization | |
23 | // | |
24 | // Instance of this class manages the digitization and/or merging of | |
25 | // Sdigits into Digits. | |
26 | // | |
27 | // Only one instance of this class is created in the macro: | |
28 | // AliRunDigitizer * manager = | |
29 | // new AliRunDigitizer(nInputStreams,SPERB); | |
30 | // where nInputStreams is number of input streams and SPERB is | |
31 | // signals per background variable, which determines how combinations | |
32 | // of signal and background events are generated. | |
33 | // Then instances of specific detector digitizers are created: | |
34 | // AliMUONDigitizer *dMUON = new AliMUONDigitizer(manager) | |
35 | // and the I/O configured (you have to specify input files | |
36 | // and an output file). The manager connects appropriate trees from | |
37 | // the input files according a combination returned by AliMergeCombi | |
38 | // class. It creates TreeD in the output and runs once per | |
39 | // event Digitize method of all existing AliDetDigitizers | |
40 | // (without any option). AliDetDigitizers ask manager | |
41 | // for a TTree with input (manager->GetInputTreeS(Int_t i), | |
42 | // merge all inputs, digitize it, and save it in the TreeD | |
43 | // obtained by manager->GetTreeD(). Output events are stored with | |
44 | // numbers from 0, this default can be changed by | |
45 | // manager->SetFirstOutputEventNr(Int_t) method. The particle numbers | |
46 | // in the output are shifted by MASK, which is taken from manager. | |
47 | // | |
48 | // The default output is to the signal file (stream 0). This can be | |
49 | // changed with the SetOutputFile(TString fn) method. | |
50 | // | |
51 | // Single input file is permitted. Maximum MAXSTREAMSTOMERGE can be merged. | |
52 | // Input from the memory (on-the-fly merging) is not yet | |
53 | // supported, as well as access to the input data by invoking methods | |
54 | // on the output data. | |
55 | // | |
56 | // Access to the some data is via gAlice for now (supposing the | |
57 | // same geometry in all input files), gAlice is taken from the first | |
58 | // input file on the first stream. | |
59 | // | |
60 | // Example with MUON digitizer, no merging, just digitization | |
61 | // | |
62 | // AliRunDigitizer * manager = new AliRunDigitizer(1,1); | |
63 | // manager->SetInputStream(0,"galice.root"); | |
64 | // AliMUONDigitizer *dMUON = new AliMUONDigitizer(manager); | |
65 | // manager->Exec(""); | |
66 | // | |
67 | // Example with MUON digitizer, merge all events from | |
68 | // galice.root (signal) file with events from bgr.root | |
69 | // (background) file. Number of merged events is | |
70 | // min(number of events in galice.root, number of events in bgr.root) | |
71 | // | |
72 | // AliRunDigitizer * manager = new AliRunDigitizer(2,1); | |
73 | // manager->SetInputStream(0,"galice.root"); | |
74 | // manager->SetInputStream(1,"bgr.root"); | |
75 | // AliMUONDigitizer *dMUON = new AliMUONDigitizer(manager); | |
76 | // manager->Exec(""); | |
77 | // | |
78 | // Example with MUON digitizer, save digits in a new file digits.root, | |
79 | // process only 1 event | |
80 | // | |
81 | // AliRunDigitizer * manager = new AliRunDigitizer(2,1); | |
82 | // manager->SetInputStream(0,"galice.root"); | |
83 | // manager->SetInputStream(1,"bgr.root"); | |
84 | // manager->SetOutputFile("digits.root"); | |
85 | // AliMUONDigitizer *dMUON = new AliMUONDigitizer(manager); | |
86 | // manager->SetNrOfEventsToWrite(1); | |
87 | // manager->Exec(""); | |
88 | // | |
89 | //_______________________________________________________________________ | |
90 | ||
91 | // system includes | |
92 | ||
93 | // ROOT includes | |
94 | ||
95 | class TList; | |
96 | #include <Riostream.h> | |
97 | #include <TTree.h> | |
98 | ||
99 | // AliROOT includes | |
100 | ||
101 | #include "AliLog.h" | |
102 | #include "AliDigitizer.h" | |
103 | #include "AliHeader.h" | |
104 | #include "AliLoader.h" | |
105 | #include "AliMergeCombi.h" | |
106 | #include "AliRun.h" | |
107 | #include "AliRunDigitizer.h" | |
108 | #include "AliRunLoader.h" | |
109 | ||
110 | ClassImp(AliRunDigitizer) | |
111 | ||
112 | const TString AliRunDigitizer::fgkDefOutFolderName("Output"); | |
113 | const TString AliRunDigitizer::fgkBaseInFolderName("Input"); | |
114 | ||
115 | ||
116 | //_______________________________________________________________________ | |
117 | AliRunDigitizer::AliRunDigitizer(): TTask("AliRunDigitizer","The manager for Merging"), | |
118 | fkMASKSTEP(0), | |
119 | fOutputFileName(0), | |
120 | fOutputDirName(0), | |
121 | fEvent(0), | |
122 | fNrOfEventsToWrite(0), | |
123 | fNrOfEventsWritten(0), | |
124 | fCopyTreesFromInput(0), | |
125 | fNinputs(0), | |
126 | fNinputsGiven(0), | |
127 | fInputStreams(0x0), | |
128 | fOutRunLoader(0x0), | |
129 | fOutputInitialized(kFALSE), | |
130 | fCombi(0), | |
131 | fCombination(0), | |
132 | fCombinationFileName(0) | |
133 | { | |
134 | // | |
135 | // root requires default ctor, where no new objects can be created | |
136 | // do not use this ctor, it is supplied only for root needs | |
137 | for (Int_t i=0; i<MAXSTREAMSTOMERGE; ++i) fkMASK[i]=0; | |
138 | } | |
139 | ||
140 | //_______________________________________________________________________ | |
141 | AliRunDigitizer::AliRunDigitizer(Int_t nInputStreams, Int_t sperb): | |
142 | TTask("AliRunDigitizer","The manager for Merging"), | |
143 | fkMASKSTEP(10000000), | |
144 | fOutputFileName(""), | |
145 | fOutputDirName("."), | |
146 | fEvent(0), | |
147 | fNrOfEventsToWrite(-1), | |
148 | fNrOfEventsWritten(0), | |
149 | fCopyTreesFromInput(-1), | |
150 | fNinputs(nInputStreams), | |
151 | fNinputsGiven(0), | |
152 | fInputStreams(new TClonesArray("AliStream",nInputStreams)), | |
153 | fOutRunLoader(0x0), | |
154 | fOutputInitialized(kFALSE), | |
155 | fCombi(new AliMergeCombi(nInputStreams,sperb)), | |
156 | fCombination(MAXSTREAMSTOMERGE), | |
157 | fCombinationFileName(0) | |
158 | ||
159 | { | |
160 | // | |
161 | // ctor which should be used to create | |
162 | // a manager for merging/digitization | |
163 | // | |
164 | if (nInputStreams == 0) | |
165 | {//kidding | |
166 | AliFatal("Specify nr of input streams"); | |
167 | return; | |
168 | } | |
169 | Int_t i; | |
170 | ||
171 | fkMASK[0] = 0; | |
172 | ||
173 | for (i=1;i<MAXSTREAMSTOMERGE;i++) | |
174 | { | |
175 | fkMASK[i] = fkMASK[i-1] + fkMASKSTEP; | |
176 | } | |
177 | ||
178 | TClonesArray &lInputStreams = *fInputStreams; | |
179 | ||
180 | new(lInputStreams[0]) AliStream(fgkBaseInFolderName+(Long_t)0,"UPDATE"); | |
181 | for (i=1;i<nInputStreams;i++) { | |
182 | new(lInputStreams[i]) AliStream(fgkBaseInFolderName+(Long_t)i,"READ"); | |
183 | } | |
184 | } | |
185 | //_______________________________________________________________________ | |
186 | ||
187 | void AliRunDigitizer::Copy(TObject&) const | |
188 | { | |
189 | // | |
190 | // Non implemented copy function | |
191 | // | |
192 | AliFatal("Not installed"); | |
193 | } | |
194 | ||
195 | //_______________________________________________________________________ | |
196 | ||
197 | AliRunDigitizer::~AliRunDigitizer() | |
198 | { | |
199 | // | |
200 | // dtor | |
201 | // | |
202 | delete fInputStreams; | |
203 | delete fCombi; | |
204 | delete fOutRunLoader; | |
205 | } | |
206 | //_______________________________________________________________________ | |
207 | void AliRunDigitizer::AddDigitizer(AliDigitizer *digitizer) | |
208 | { | |
209 | // | |
210 | // add digitizer to the list of active digitizers | |
211 | // | |
212 | this->Add(digitizer); | |
213 | } | |
214 | //_______________________________________________________________________ | |
215 | void AliRunDigitizer::SetInputStream(Int_t i, const char *inputFile, TString foldername) | |
216 | { | |
217 | // | |
218 | // Sets the name of the input file | |
219 | // | |
220 | if (i > fInputStreams->GetLast()) { | |
221 | AliError("Input stream number too high"); | |
222 | return; | |
223 | } | |
224 | AliStream * stream = static_cast<AliStream*>(fInputStreams->At(i)) ; | |
225 | if ( !foldername.IsNull() ) { | |
226 | if ( i > 0 ) | |
227 | foldername += i ; // foldername should stay unchanged for the default output | |
228 | stream->SetFolderName(foldername) ; | |
229 | } | |
230 | stream->AddFile(inputFile); | |
231 | } | |
232 | ||
233 | //_______________________________________________________________________ | |
234 | void AliRunDigitizer::Digitize(Option_t* option) | |
235 | { | |
236 | // get a new combination of inputs, loads events to folders | |
237 | ||
238 | // take gAlice from the first input file. It is needed to access | |
239 | // geometry data | |
240 | // If gAlice is already in memory, use it | |
241 | ||
242 | if (!static_cast<AliStream*>(fInputStreams->At(0))->ImportgAlice()) | |
243 | { | |
244 | AliError("Error occured while getting gAlice from Input 0"); | |
245 | return; | |
246 | } | |
247 | ||
248 | if (!InitGlobal()) //calls Init() for all (sub)digitizers | |
249 | { | |
250 | AliError("InitGlobal returned error"); | |
251 | return; | |
252 | } | |
253 | ||
254 | Int_t eventsCreated = 0; | |
255 | // loop until there is anything on the input in case fNrOfEventsToWrite < 0 | |
256 | while ((eventsCreated++ < fNrOfEventsToWrite) || (fNrOfEventsToWrite < 0)) | |
257 | { | |
258 | if (!ConnectInputTrees()) break; | |
259 | InitEvent();//this must be after call of Connect Input tress. | |
260 | if (fOutRunLoader) | |
261 | { | |
262 | fOutRunLoader->SetEventNumber(eventsCreated-1); | |
263 | } | |
264 | static_cast<AliStream*>(fInputStreams->At(0))->ImportgAlice(); // use gAlice of the first input stream | |
265 | ExecuteTasks(option);// loop over all registered digitizers and let them do the work | |
266 | FinishEvent(); | |
267 | CleanTasks(); | |
268 | } | |
269 | FinishGlobal(); | |
270 | } | |
271 | ||
272 | //_______________________________________________________________________ | |
273 | Bool_t AliRunDigitizer::ConnectInputTrees() | |
274 | { | |
275 | // | |
276 | // loads events | |
277 | // | |
278 | Int_t eventNr[MAXSTREAMSTOMERGE], delta[MAXSTREAMSTOMERGE]; | |
279 | fCombi->Combination(eventNr, delta); | |
280 | for (Int_t i=0;i<fNinputs;i++) | |
281 | { | |
282 | if (delta[i] == 1) | |
283 | { | |
284 | AliStream *iStream = static_cast<AliStream*>(fInputStreams->At(i));//gets the "i" defined in combination | |
285 | if (!iStream->NextEventInStream()) return kFALSE; //sets serial number | |
286 | } | |
287 | else if (delta[i] != 0) | |
288 | { | |
289 | AliError("Only delta 0 or 1 is implemented"); | |
290 | return kFALSE; | |
291 | } | |
292 | } | |
293 | ||
294 | return kTRUE; | |
295 | } | |
296 | ||
297 | //_______________________________________________________________________ | |
298 | Bool_t AliRunDigitizer::InitGlobal() | |
299 | { | |
300 | // | |
301 | // Method called once before Digitize() is called | |
302 | // initialize digitizers and output | |
303 | // | |
304 | fOutputInitialized = kFALSE; | |
305 | TList* subTasks = this->GetListOfTasks(); | |
306 | if (subTasks) { | |
307 | TIter next(subTasks); | |
308 | while (AliDigitizer * dig = (AliDigitizer *) next()) | |
309 | dig->Init(); | |
310 | } | |
311 | return kTRUE; | |
312 | } | |
313 | ||
314 | //_______________________________________________________________________ | |
315 | ||
316 | void AliRunDigitizer::SetOutputFile(TString fn) | |
317 | { | |
318 | // | |
319 | // The output will be to separate file, | |
320 | // not to the signal file here should be protection | |
321 | //to avoid setting the same file as any input | |
322 | // | |
323 | AliInfo(Form("Setting Output File Name %s ",fn.Data())); | |
324 | fOutputFileName = fn; | |
325 | // InitOutputGlobal(); | |
326 | } | |
327 | ||
328 | //_______________________________________________________________________ | |
329 | Bool_t AliRunDigitizer::InitOutputGlobal() | |
330 | { | |
331 | // | |
332 | // Creates the output file, called by InitEvent() | |
333 | // Needs to be called after all inputs are opened | |
334 | // | |
335 | if (fOutputInitialized) return kTRUE; | |
336 | ||
337 | if ( !fOutputFileName.IsNull()) | |
338 | { | |
339 | fOutRunLoader = AliRunLoader::Open(fOutputFileName,fgkDefOutFolderName,"recreate"); | |
340 | ||
341 | if (fOutRunLoader == 0x0) | |
342 | { | |
343 | AliError("Can not open output"); | |
344 | return kFALSE; | |
345 | } | |
346 | Info("InitOutputGlobal", " 1 %s = ", GetInputFolderName(0).Data()) ; | |
347 | AliRunLoader* inrl = AliRunLoader::GetRunLoader(GetInputFolderName(0)); | |
348 | if (inrl == 0x0) | |
349 | { | |
350 | AliError("Can not get Run Loader Input 0. Maybe yet not initialized?"); | |
351 | return kFALSE; | |
352 | } | |
353 | AliDebug(2, Form(" 2 %p = ", inrl)) ; | |
354 | ||
355 | //Copy all detector loaders from input 0 to output | |
356 | const TObjArray* inloaders = inrl->GetArrayOfLoaders(); | |
357 | TIter next(inloaders); | |
358 | AliLoader *loader; | |
359 | while((loader = (AliLoader*)next())) | |
360 | { | |
361 | AliLoader* cloneloader = (AliLoader*)loader->Clone(); | |
362 | cloneloader->Register(fOutRunLoader->GetEventFolder());//creates folders for this loader in Output Folder Structure | |
363 | GetOutRunLoader()->AddLoader(cloneloader);//adds a loader for output | |
364 | } | |
365 | ||
366 | fOutRunLoader->MakeTree("E"); | |
367 | ||
368 | AliDebug(3,Form("file %s was opened.",fOutputFileName.Data())); | |
369 | } | |
370 | fOutputInitialized = kTRUE; | |
371 | return kTRUE; | |
372 | } | |
373 | //_______________________________________________________________________ | |
374 | ||
375 | void AliRunDigitizer::InitEvent() | |
376 | { | |
377 | // | |
378 | // redirects output properly | |
379 | // | |
380 | AliDebug(3,Form("fEvent = %d",fEvent)); | |
381 | AliDebug(3,Form("fOutputFileName \"%s\"",fOutputFileName.Data())); | |
382 | if (fOutputInitialized == kFALSE) InitOutputGlobal(); | |
383 | ||
384 | // if fOutputFileName was not given, write output to signal directory | |
385 | } | |
386 | //_______________________________________________________________________ | |
387 | ||
388 | void AliRunDigitizer::FinishEvent() | |
389 | { | |
390 | // | |
391 | // called at the end of loop over digitizers | |
392 | // | |
393 | ||
394 | if (GetOutRunLoader() == 0x0) | |
395 | { | |
396 | AliError("fOutRunLoader is null"); | |
397 | return; | |
398 | } | |
399 | ||
400 | fEvent++; | |
401 | fNrOfEventsWritten++; | |
402 | ||
403 | if (fOutRunLoader) | |
404 | { | |
405 | AliRunLoader* inrl = AliRunLoader::GetRunLoader(GetInputFolderName(0)); | |
406 | AliHeader* outheader = fOutRunLoader->GetHeader(); | |
407 | AliHeader* inheader = inrl->GetHeader(); | |
408 | if (inheader == 0x0) | |
409 | { | |
410 | inrl->LoadHeader(); | |
411 | inheader = inrl->GetHeader(); | |
412 | if (inheader == 0x0) AliFatal("Can not get header from input 0"); | |
413 | } | |
414 | ||
415 | outheader->SetNprimary(inheader->GetNprimary()); | |
416 | outheader->SetNtrack(inheader->GetNtrack()); | |
417 | outheader->SetEvent(inheader->GetEvent()); | |
418 | outheader->SetEventNrInRun(inheader->GetEventNrInRun()); | |
419 | outheader->SetNvertex(inheader->GetNvertex()); | |
420 | fOutRunLoader->TreeE()->Fill(); | |
421 | } | |
422 | ||
423 | if (fCopyTreesFromInput > -1) | |
424 | { | |
425 | //this is sensless since no information would be coherent in case of merging | |
426 | // | |
427 | AliWarning("Copy trees from input: Copy or link files manually"); | |
428 | return; | |
429 | } | |
430 | } | |
431 | //_______________________________________________________________________ | |
432 | ||
433 | void AliRunDigitizer::FinishGlobal() | |
434 | { | |
435 | // | |
436 | // called at the end of Exec | |
437 | // save unique objects to the output file | |
438 | // | |
439 | if (GetOutRunLoader() == 0x0) | |
440 | { | |
441 | AliError("Can not get RunLoader from Output Stream folder"); | |
442 | return; | |
443 | } | |
444 | GetOutRunLoader()->CdGAFile(); | |
445 | this->Write(NULL, TObject::kOverwrite); | |
446 | if (fOutRunLoader) | |
447 | { | |
448 | fOutRunLoader->WriteHeader("OVERWRITE"); | |
449 | fOutRunLoader->WriteRunLoader("OVERWRITE"); | |
450 | TFolder* outfolder = fOutRunLoader->GetEventFolder(); | |
451 | if (outfolder == 0x0) | |
452 | { | |
453 | AliError("Can not get Event Folder"); | |
454 | return; | |
455 | } | |
456 | ||
457 | AliRunLoader* inRN = AliRunLoader::GetRunLoader(GetInputFolderName(0)); | |
458 | outfolder->Add(inRN->GetAliRun()); | |
459 | fOutRunLoader->WriteAliRun("OVERWRITE"); | |
460 | } | |
461 | ||
462 | if (fCopyTreesFromInput > -1) | |
463 | { | |
464 | //copy files manually | |
465 | } | |
466 | } | |
467 | //_______________________________________________________________________ | |
468 | ||
469 | Int_t AliRunDigitizer::GetNParticles(Int_t event) const | |
470 | { | |
471 | // return number of particles in all input files for a given | |
472 | // event (as numbered in the output file) | |
473 | // return -1 if some file cannot be accessed | |
474 | ||
475 | Int_t sum = 0; | |
476 | Int_t sumI; | |
477 | for (Int_t i = 0; i < fNinputs; i++) { | |
478 | sumI = GetNParticles(GetInputEventNumber(event,i), i); | |
479 | if (sumI < 0) return -1; | |
480 | sum += sumI; | |
481 | } | |
482 | return sum; | |
483 | } | |
484 | //_______________________________________________________________________ | |
485 | ||
486 | Int_t AliRunDigitizer::GetNParticles(Int_t /*event*/, Int_t /*input*/) const | |
487 | { | |
488 | // return number of particles in input file input for a given | |
489 | // event (as numbered in this input file) | |
490 | // return -1 if some error | |
491 | ||
492 | // Must be revised in the version with AliStream | |
493 | ||
494 | return -1; | |
495 | ||
496 | } | |
497 | ||
498 | //_______________________________________________________________________ | |
499 | Int_t* AliRunDigitizer::GetInputEventNumbers(Int_t event) const | |
500 | { | |
501 | // return pointer to an int array with input event numbers which were | |
502 | // merged in the output event event | |
503 | ||
504 | // simplified for now, implement later | |
505 | Int_t * a = new Int_t[MAXSTREAMSTOMERGE]; | |
506 | for (Int_t i = 0; i < fNinputs; i++) { | |
507 | a[i] = event; | |
508 | } | |
509 | return a; | |
510 | } | |
511 | //_______________________________________________________________________ | |
512 | Int_t AliRunDigitizer::GetInputEventNumber(Int_t event, Int_t /*input*/) const | |
513 | { | |
514 | // return an event number of an eventInput from input file input | |
515 | // which was merged to create output event event | |
516 | ||
517 | // simplified for now, implement later | |
518 | return event; | |
519 | } | |
520 | //_______________________________________________________________________ | |
521 | TParticle* AliRunDigitizer::GetParticle(Int_t i, Int_t event) const | |
522 | { | |
523 | // return pointer to particle with index i (index with mask) | |
524 | ||
525 | // decode the MASK | |
526 | Int_t input = i/fkMASKSTEP; | |
527 | return GetParticle(i,input,GetInputEventNumber(event,input)); | |
528 | } | |
529 | ||
530 | //_______________________________________________________________________ | |
531 | TParticle* AliRunDigitizer::GetParticle(Int_t /*i*/, Int_t /*input*/, Int_t /*event*/) const | |
532 | { | |
533 | // return pointer to particle with index i in the input file input | |
534 | // (index without mask) | |
535 | // event is the event number in the file input | |
536 | // return 0 i fit does not exist | |
537 | ||
538 | // Must be revised in the version with AliStream | |
539 | ||
540 | return 0; | |
541 | } | |
542 | ||
543 | //_______________________________________________________________________ | |
544 | void AliRunDigitizer::ExecuteTask(Option_t* option) | |
545 | { | |
546 | // | |
547 | // overwrite ExecuteTask to do Digitize only | |
548 | // | |
549 | if (!IsActive()) return; | |
550 | Digitize(option); | |
551 | fHasExecuted = kTRUE; | |
552 | return; | |
553 | } | |
554 | ||
555 | //_______________________________________________________________________ | |
556 | const TString& AliRunDigitizer::GetInputFolderName(Int_t i) const | |
557 | { | |
558 | // | |
559 | // Get the input Folder Name | |
560 | // | |
561 | AliStream* stream = dynamic_cast<AliStream*>(fInputStreams->At(i)); | |
562 | if (stream == 0x0) | |
563 | AliFatal(Form("Can not get the input stream. Index = %d. Exiting",i)); | |
564 | return stream->GetFolderName(); | |
565 | } | |
566 | //_______________________________________________________________________ | |
567 | ||
568 | const char* AliRunDigitizer::GetOutputFolderName() | |
569 | { | |
570 | // | |
571 | // Get output folder name | |
572 | // | |
573 | return GetOutRunLoader()->GetEventFolder()->GetName(); | |
574 | } | |
575 | //_______________________________________________________________________ | |
576 | ||
577 | AliRunLoader* AliRunDigitizer::GetOutRunLoader() | |
578 | { | |
579 | // | |
580 | // Returns Run Loader | |
581 | // | |
582 | if (fOutRunLoader) return fOutRunLoader; | |
583 | ||
584 | if ( fOutputFileName.IsNull() ) | |
585 | {//guard that sombody calls it without settting file name | |
586 | AliDebug(1,"Output file name is empty. Using Input 0 for output"); | |
587 | return AliRunLoader::GetRunLoader(GetInputFolderName(0)); | |
588 | } | |
589 | // InitOutputGlobal(); | |
590 | return fOutRunLoader; | |
591 | } | |
592 | //_______________________________________________________________________ | |
593 | ||
594 | TString AliRunDigitizer::GetInputFileName(Int_t input, Int_t order) const | |
595 | { | |
596 | // returns file name of the order-th file in the input stream input | |
597 | // returns empty string if such file does not exist | |
598 | // first input stream is 0 | |
599 | // first file in the input stream is 0 | |
600 | TString fileName(""); | |
601 | if (input >= fNinputs) return fileName; | |
602 | AliStream * stream = static_cast<AliStream*>(fInputStreams->At(input)); | |
603 | if (order > stream->GetNInputFiles()) return fileName; | |
604 | fileName = stream->GetFileName(order); | |
605 | return fileName; | |
606 | } |