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1df4a03e | 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 | ||
3d1463c8 | 18 | //----------------------------------------------------------------------------- |
1df4a03e | 19 | /// \class AliMUONMCDataInterface |
20 | /// | |
21 | /// Easy to use MC data accessor | |
22 | /// | |
23 | /// \author Laurent Aphecetche, Subatech | |
e8636ba0 | 24 | /// |
25 | // Moved parts of old AliMUONDataInterface interface to AliMUONMCDataInterface | |
26 | // Artur Szostak <artursz@iafrica.com> (University of Cape Town) | |
3d1463c8 | 27 | //----------------------------------------------------------------------------- |
1df4a03e | 28 | |
29 | #include "AliMUONMCDataInterface.h" | |
e9bef706 | 30 | #include "AliMUONVDigitStore.h" |
31 | #include "AliMUONVHitStore.h" | |
e9bef706 | 32 | #include "AliMUONVTriggerStore.h" |
e8636ba0 | 33 | #include "AliMUONHit.h" |
34 | #include "AliMUONVDigit.h" | |
35 | #include "AliMUONLocalTrigger.h" | |
36 | #include "AliMUONRegionalTrigger.h" | |
37 | #include "AliMUONGlobalTrigger.h" | |
38 | ||
168e9c4d | 39 | #include "AliMpEncodePair.h" |
e8636ba0 | 40 | #include "AliMpDEManager.h" |
41 | #include "AliMpConstants.h" | |
a55f49a0 | 42 | #include "AliMpCDB.h" |
1df4a03e | 43 | |
44 | #include "AliLog.h" | |
c93255fe | 45 | #include "AliLoader.h" |
1df4a03e | 46 | #include "AliRunLoader.h" |
aa73f8fb | 47 | #include "AliHeader.h" |
1df4a03e | 48 | #include "AliStack.h" |
aa73f8fb | 49 | #include "AliCDBManager.h" |
e9bef706 | 50 | |
c93255fe | 51 | #include <TTree.h> |
1df4a03e | 52 | #include <Riostream.h> |
53 | #include <TClonesArray.h> | |
e9bef706 | 54 | #include <TList.h> |
1df4a03e | 55 | #include <TParticle.h> |
e8636ba0 | 56 | #include <TIterator.h> |
57 | #include <cstdlib> | |
58 | #include <cassert> | |
1df4a03e | 59 | |
60 | /// \cond CLASSIMP | |
61 | ClassImp(AliMUONMCDataInterface) | |
62 | /// \endcond | |
63 | ||
e9bef706 | 64 | Int_t AliMUONMCDataInterface::fgInstanceCounter(0); |
65 | ||
1df4a03e | 66 | //_____________________________________________________________________________ |
67 | AliMUONMCDataInterface::AliMUONMCDataInterface(const char* filename) : | |
68 | TObject(), | |
e9bef706 | 69 | fLoader(0x0), |
70 | fHitStore(0x0), | |
71 | fSDigitStore(0x0), | |
72 | fDigitStore(0x0), | |
73 | fTriggerStore(0x0), | |
74 | fTrackRefs(0x0), | |
75 | fCurrentEvent(-1), | |
e8636ba0 | 76 | fIsValid(kFALSE), |
77 | fCurrentIteratorType(kNoIterator), | |
78 | fCurrentIndex(-1), | |
79 | fDataX(-1), | |
80 | fDataY(-1), | |
81 | fIterator(0x0) | |
1df4a03e | 82 | { |
83 | /// ctor | |
e9bef706 | 84 | |
85 | ++fgInstanceCounter; | |
86 | ||
88c5d53f | 87 | if ( AliCDBManager::Instance() != NULL && |
88 | AliCDBManager::Instance()->GetDefaultStorage() == NULL ) { | |
89 | AliFatal("CDB default storage not defined."); | |
ae9e8f66 | 90 | } |
91 | ||
e9bef706 | 92 | Open(filename); |
a55f49a0 | 93 | |
94 | // Load mapping | |
95 | if ( ! AliMpCDB::LoadMpSegmentation() ) { | |
96 | AliFatal("Could not access mapping from OCDB !"); | |
97 | } | |
1df4a03e | 98 | } |
99 | ||
100 | //_____________________________________________________________________________ | |
101 | AliMUONMCDataInterface::~AliMUONMCDataInterface() | |
102 | { | |
103 | /// dtor | |
e9bef706 | 104 | --fgInstanceCounter; |
105 | } | |
106 | ||
e8636ba0 | 107 | //_____________________________________________________________________________ |
108 | AliMUONVHitStore* | |
109 | AliMUONMCDataInterface::HitStore(Int_t event, Int_t track) | |
110 | { | |
111 | /// Return the hitStore for a given track of one event | |
112 | /// Return 0x0 if event and/or track not found | |
113 | /// Returned pointer should not be deleted | |
46df197d | 114 | /// |
115 | /// \note If a previous store has been retrieved by one of the methods of | |
116 | /// this class, but for a different event number, then those stores will | |
117 | /// be deleted and no longer valid. | |
118 | /// If you require access to the data for the earlier retrieved store, | |
119 | /// but for different events, then you should deep copy / clone the object. | |
e8636ba0 | 120 | |
121 | if (not IsValid()) return 0x0; | |
4cfe83bc | 122 | |
123 | if (event == fCurrentEvent) | |
124 | { | |
125 | if (track == fDataX and fHitStore != 0x0) // using fDataX as track number. | |
e8636ba0 | 126 | return fHitStore; |
4cfe83bc | 127 | } |
128 | else | |
129 | { | |
130 | ResetStores(); | |
131 | if ( not LoadEvent(event) ) return 0x0; | |
132 | } | |
e8636ba0 | 133 | |
134 | fLoader->LoadHits(); | |
135 | ||
136 | TTree* treeH = fLoader->TreeH(); | |
137 | if (treeH == 0x0) | |
138 | { | |
139 | AliError("Could not get treeH"); | |
140 | return 0x0; | |
141 | } | |
142 | ||
143 | fHitStore = AliMUONVHitStore::Create(*treeH); | |
144 | AliDebug(1,"Creating hitStore from treeH"); | |
145 | if ( fHitStore != 0x0 ) | |
146 | { | |
147 | fHitStore->Connect(*treeH); | |
148 | if ( treeH->GetEvent(track) == 0 ) | |
149 | { | |
150 | AliError(Form("Could not read track %d",track)); | |
151 | fHitStore->Clear(); | |
152 | return 0x0; | |
153 | } | |
154 | fDataX = track; // using fDataX as track number. | |
155 | } | |
156 | ||
157 | fLoader->UnloadHits(); | |
158 | ||
159 | return fHitStore; | |
160 | } | |
161 | ||
162 | //_____________________________________________________________________________ | |
163 | AliMUONVDigitStore* | |
164 | AliMUONMCDataInterface::SDigitStore(Int_t event) | |
165 | { | |
166 | /// Return the SDigit store for a given event. | |
167 | /// Return 0 if event not found | |
168 | /// Returned pointer should not be deleted | |
46df197d | 169 | /// |
170 | /// \note If a previous store has been retrieved by one of the methods of | |
171 | /// this class, but for a different event number, then those stores will | |
172 | /// be deleted and no longer valid. | |
173 | /// If you require access to the data for the earlier retrieved store, | |
174 | /// but for different events, then you should deep copy / clone the object. | |
e8636ba0 | 175 | |
176 | if (not IsValid()) return 0x0; | |
e8636ba0 | 177 | |
4cfe83bc | 178 | if (event == fCurrentEvent) |
179 | { | |
180 | if (fSDigitStore != 0x0) | |
181 | return fSDigitStore; | |
182 | } | |
183 | else | |
184 | { | |
185 | ResetStores(); | |
186 | if ( not LoadEvent(event) ) return 0x0; | |
187 | } | |
e8636ba0 | 188 | |
189 | fLoader->LoadSDigits(); | |
190 | ||
191 | TTree* treeS = fLoader->TreeS(); | |
192 | if (treeS == 0x0) | |
193 | { | |
194 | AliError("Could not get treeS"); | |
195 | return 0x0; | |
196 | } | |
197 | ||
198 | fSDigitStore = AliMUONVDigitStore::Create(*treeS); | |
199 | if ( fSDigitStore != 0x0 ) | |
200 | { | |
201 | fSDigitStore->Clear(); | |
202 | fSDigitStore->Connect(*treeS); | |
203 | treeS->GetEvent(0); | |
204 | } | |
205 | ||
206 | fLoader->UnloadSDigits(); | |
207 | ||
208 | return fSDigitStore; | |
209 | } | |
210 | ||
e9bef706 | 211 | //_____________________________________________________________________________ |
212 | AliMUONVDigitStore* | |
213 | AliMUONMCDataInterface::DigitStore(Int_t event) | |
214 | { | |
215 | /// Return a pointer to the digitStore for a given event (or 0 if not found) | |
216 | /// Returned pointer should not be deleted | |
46df197d | 217 | /// |
218 | /// \note If a previous store has been retrieved by one of the methods of | |
219 | /// this class, but for a different event number, then those stores will | |
220 | /// be deleted and no longer valid. | |
221 | /// If you require access to the data for the earlier retrieved store, | |
222 | /// but for different events, then you should deep copy / clone the object. | |
e9bef706 | 223 | |
e8636ba0 | 224 | if (not IsValid()) return 0x0; |
e8636ba0 | 225 | |
4cfe83bc | 226 | if (event == fCurrentEvent) |
227 | { | |
228 | if (fDigitStore != 0x0) | |
229 | return fDigitStore; | |
230 | } | |
231 | else | |
232 | { | |
233 | ResetStores(); | |
234 | if ( not LoadEvent(event) ) return 0x0; | |
235 | } | |
e9bef706 | 236 | |
237 | fLoader->LoadDigits(); | |
238 | ||
239 | TTree* treeD = fLoader->TreeD(); | |
e8636ba0 | 240 | if (treeD == 0x0) |
e9bef706 | 241 | { |
242 | AliError("Could not get treeD"); | |
243 | return 0x0; | |
244 | } | |
245 | ||
e8636ba0 | 246 | fDigitStore = AliMUONVDigitStore::Create(*treeD); |
247 | if ( fDigitStore != 0x0 ) | |
e9bef706 | 248 | { |
249 | fDigitStore->Clear(); | |
250 | fDigitStore->Connect(*treeD); | |
251 | treeD->GetEvent(0); | |
252 | } | |
253 | ||
254 | fLoader->UnloadDigits(); | |
255 | ||
256 | return fDigitStore; | |
257 | } | |
258 | ||
e8636ba0 | 259 | //_____________________________________________________________________________ |
260 | AliStack* | |
261 | AliMUONMCDataInterface::Stack(Int_t event) | |
262 | { | |
263 | /// Get the Stack (list of generated particles) for one event | |
264 | /// Returned pointer should not be deleted | |
46df197d | 265 | /// |
266 | /// \note If a previous store has been retrieved by one of the methods of | |
267 | /// this class, but for a different event number, then those stores will | |
268 | /// be deleted and no longer valid. | |
269 | /// If you require access to the data for the earlier retrieved store, | |
270 | /// but for different events, then you should deep copy / clone the object. | |
e8636ba0 | 271 | |
272 | if ( not IsValid() ) return 0x0; | |
273 | ||
274 | if (event != fCurrentEvent) | |
275 | { | |
276 | ResetStores(); | |
277 | if ( not LoadEvent(event) ) return 0x0; | |
278 | } | |
279 | ||
280 | fLoader->GetRunLoader()->LoadKinematics(); | |
281 | ||
282 | return fLoader->GetRunLoader()->Stack(); | |
283 | } | |
284 | ||
285 | //_____________________________________________________________________________ | |
286 | TClonesArray* | |
287 | AliMUONMCDataInterface::TrackRefs(Int_t event, Int_t track) | |
288 | { | |
289 | /// Get the track references for a given (generated) track of one event | |
290 | /// Returned pointer should not be deleted | |
46df197d | 291 | /// |
292 | /// \note If a previous store has been retrieved by one of the methods of | |
293 | /// this class, but for a different event number, then those stores will | |
294 | /// be deleted and no longer valid. | |
295 | /// If you require access to the data for the earlier retrieved store, | |
296 | /// but for different events, then you should deep copy / clone the object. | |
e8636ba0 | 297 | |
298 | if ( not IsValid() ) return 0x0; | |
4cfe83bc | 299 | |
300 | if (event == fCurrentEvent) | |
301 | { | |
302 | if (track == fDataX and fTrackRefs != 0x0) // using fDataX as track number. | |
303 | return fTrackRefs; | |
304 | } | |
305 | else | |
e8636ba0 | 306 | { |
307 | ResetStores(); | |
308 | if ( not LoadEvent(event) ) return 0x0; | |
309 | } | |
310 | ||
e8636ba0 | 311 | fLoader->GetRunLoader()->LoadTrackRefs(); |
312 | ||
313 | TTree* treeTR = fLoader->GetRunLoader()->TreeTR(); | |
314 | ||
315 | if ( fTrackRefs != 0x0 ) fTrackRefs->Clear("C"); | |
316 | ||
317 | if (treeTR != 0x0) | |
318 | { | |
319 | if ( treeTR->GetEvent(track) > 0 ) | |
320 | { | |
91469ad4 | 321 | TBranch* branch = treeTR->GetBranch("TrackReferences"); |
e8636ba0 | 322 | branch->SetAddress(&fTrackRefs); |
323 | branch->GetEvent(track); | |
324 | fDataX = track; // using fDataX as track number. | |
325 | } | |
326 | } | |
327 | else | |
328 | { | |
329 | AliError("Could not get TreeTR"); | |
330 | } | |
331 | ||
332 | fLoader->GetRunLoader()->UnloadTrackRefs(); | |
333 | ||
334 | return fTrackRefs; | |
335 | } | |
336 | ||
337 | //_____________________________________________________________________________ | |
338 | AliMUONVTriggerStore* | |
339 | AliMUONMCDataInterface::TriggerStore(Int_t event) | |
340 | { | |
341 | /// Return the triggerStore for a given event. | |
342 | /// Return 0x0 if event not found. | |
343 | /// Returned pointer should not be deleted. | |
46df197d | 344 | /// |
345 | /// \note If a previous store has been retrieved by one of the methods of | |
346 | /// this class, but for a different event number, then those stores will | |
347 | /// be deleted and no longer valid. | |
348 | /// If you require access to the data for the earlier retrieved store, | |
349 | /// but for different events, then you should deep copy / clone the object. | |
e8636ba0 | 350 | |
351 | if (not IsValid()) return 0x0; | |
e8636ba0 | 352 | |
4cfe83bc | 353 | if (event == fCurrentEvent) |
354 | { | |
355 | if (fTriggerStore != 0x0) | |
356 | return fTriggerStore; | |
357 | } | |
358 | else | |
359 | { | |
360 | ResetStores(); | |
361 | if ( not LoadEvent(event) ) return 0x0; | |
362 | } | |
e8636ba0 | 363 | |
364 | fLoader->LoadDigits(); | |
365 | ||
366 | TTree* treeD = fLoader->TreeD(); | |
367 | if ( treeD == 0x0 ) | |
368 | { | |
369 | AliError("Could not get treeD"); | |
370 | return 0x0; | |
371 | } | |
372 | ||
373 | fTriggerStore = AliMUONVTriggerStore::Create(*treeD); | |
374 | if ( fTriggerStore != 0x0 ) | |
375 | { | |
376 | fTriggerStore->Clear(); | |
377 | fTriggerStore->Connect(*treeD); | |
378 | treeD->GetEvent(0); | |
379 | } | |
380 | ||
381 | fLoader->UnloadDigits(); | |
382 | ||
383 | return fTriggerStore; | |
384 | } | |
385 | ||
e9bef706 | 386 | //_____________________________________________________________________________ |
387 | void | |
388 | AliMUONMCDataInterface::DumpDigits(Int_t event, Bool_t sorted) | |
389 | { | |
390 | /// Dump the digits for a given event, sorted if requested. | |
391 | DigitStore(event); | |
392 | ||
e8636ba0 | 393 | if ( fDigitStore != 0x0 ) |
e9bef706 | 394 | { |
395 | if ( sorted ) | |
396 | { | |
397 | DumpSorted(*fDigitStore); | |
398 | } | |
399 | else | |
400 | { | |
401 | fDigitStore->Print(); | |
402 | } | |
403 | } | |
1df4a03e | 404 | } |
405 | ||
406 | //_____________________________________________________________________________ | |
407 | void | |
e9bef706 | 408 | AliMUONMCDataInterface::DumpHits(Int_t event) |
1df4a03e | 409 | { |
410 | /// Dump all the hits for one event | |
411 | ||
412 | Int_t ntracks = NumberOfTracks(event); | |
413 | ||
414 | for ( Int_t i = 0; i < ntracks; ++i ) | |
415 | { | |
416 | cout << ">> Track " << i << endl; | |
e9bef706 | 417 | HitStore(event,i); |
418 | if ( fHitStore ) | |
419 | { | |
420 | fHitStore->Print("","full"); | |
421 | } | |
1df4a03e | 422 | } |
423 | } | |
424 | ||
425 | //_____________________________________________________________________________ | |
426 | void | |
e9bef706 | 427 | AliMUONMCDataInterface::DumpKine(Int_t event) |
1df4a03e | 428 | { |
429 | /// Dump all generated particles for one event | |
430 | AliStack* stack = Stack(event); | |
431 | ||
e8636ba0 | 432 | if ( stack != 0x0 ) |
1df4a03e | 433 | { |
434 | Int_t nparticles = (Int_t) stack->GetNtrack(); | |
435 | ||
436 | for (Int_t iparticle=0; iparticle<nparticles; ++iparticle) | |
437 | { | |
438 | stack->Particle(iparticle)->Print(""); | |
439 | } | |
440 | } | |
441 | else | |
442 | { | |
443 | AliError("Could not get stack"); | |
444 | } | |
445 | } | |
446 | ||
447 | //_____________________________________________________________________________ | |
448 | void | |
e9bef706 | 449 | AliMUONMCDataInterface::DumpSDigits(Int_t event, Bool_t sorted) |
450 | { | |
451 | /// Dump the SDigits for a given event, sorted if requested | |
452 | SDigitStore(event); | |
453 | ||
e8636ba0 | 454 | if ( fSDigitStore != 0x0 ) |
e9bef706 | 455 | { |
456 | if ( sorted ) | |
457 | { | |
458 | DumpSorted(*fSDigitStore); | |
459 | } | |
460 | else | |
461 | { | |
462 | fSDigitStore->Print(); | |
463 | } | |
464 | } | |
465 | } | |
466 | ||
467 | //_____________________________________________________________________________ | |
468 | void | |
469 | AliMUONMCDataInterface::DumpSorted(const AliMUONVStore& store) const | |
470 | { | |
471 | /// Dump the given store in sorted order | |
472 | ||
473 | TIter next(store.CreateIterator()); | |
474 | TObject* object; | |
475 | TList list; | |
476 | list.SetOwner(kFALSE); | |
477 | ||
478 | while ( ( object = next() ) ) | |
479 | { | |
480 | list.Add(object); | |
481 | } | |
482 | ||
483 | list.Sort(); | |
484 | ||
485 | list.Print(); | |
486 | } | |
487 | ||
488 | //_____________________________________________________________________________ | |
489 | void | |
490 | AliMUONMCDataInterface::DumpTrackRefs(Int_t event) | |
1df4a03e | 491 | { |
492 | /// Dump track references for one event | |
493 | Int_t ntrackrefs = NumberOfTrackRefs(event); | |
494 | ||
495 | for ( Int_t i = 0; i < ntrackrefs; ++i ) | |
496 | { | |
e9bef706 | 497 | TrackRefs(event,i); |
e8636ba0 | 498 | if ( fTrackRefs != 0x0 ) |
e9bef706 | 499 | { |
500 | fTrackRefs->Print("","*"); | |
501 | } | |
502 | } | |
503 | } | |
504 | ||
505 | //_____________________________________________________________________________ | |
506 | void | |
507 | AliMUONMCDataInterface::DumpTrigger(Int_t event) | |
508 | { | |
509 | /// Dump trigger for a given event (trigger is read from TreeD) | |
510 | ||
511 | TriggerStore(event); | |
512 | ||
e8636ba0 | 513 | if ( fTriggerStore != 0x0 ) |
e9bef706 | 514 | { |
515 | fTriggerStore->Print(); | |
1df4a03e | 516 | } |
517 | } | |
518 | ||
1df4a03e | 519 | //_____________________________________________________________________________ |
520 | Bool_t | |
e9bef706 | 521 | AliMUONMCDataInterface::LoadEvent(Int_t event) |
522 | { | |
523 | /// Load event if different from the current one. | |
e8636ba0 | 524 | /// Returns kFALSE on error and kTRUE if the event was loaded. |
525 | ||
526 | assert( IsValid() ); | |
527 | ||
528 | AliDebug(1,Form("Loading event %d using runLoader %p",event,fLoader->GetRunLoader())); | |
529 | if (fLoader->GetRunLoader()->GetEvent(event) == 0) | |
e9bef706 | 530 | { |
531 | fCurrentEvent = event; | |
e8636ba0 | 532 | return kTRUE; |
e9bef706 | 533 | } |
e8636ba0 | 534 | else |
535 | return kFALSE; | |
1df4a03e | 536 | } |
537 | ||
e9bef706 | 538 | |
1df4a03e | 539 | //_____________________________________________________________________________ |
540 | Int_t | |
541 | AliMUONMCDataInterface::NumberOfEvents() const | |
542 | { | |
543 | /// Number of events in the file we're connected to | |
e8636ba0 | 544 | if (not IsValid()) return -1; |
e9bef706 | 545 | return fLoader->GetRunLoader()->GetNumberOfEvents(); |
1df4a03e | 546 | } |
547 | ||
548 | //_____________________________________________________________________________ | |
549 | Int_t | |
e9bef706 | 550 | AliMUONMCDataInterface::NumberOfTracks(Int_t event) |
1df4a03e | 551 | { |
552 | /// Number of tracks in the event | |
e8636ba0 | 553 | if ( not IsValid()) return -1; |
1df4a03e | 554 | |
e8636ba0 | 555 | if (event != fCurrentEvent) |
556 | { | |
557 | ResetStores(); | |
558 | if ( not LoadEvent(event) ) return -1; | |
559 | } | |
e9bef706 | 560 | |
561 | fLoader->LoadHits(); | |
1df4a03e | 562 | |
e8636ba0 | 563 | Int_t rv(-1); |
1df4a03e | 564 | |
e9bef706 | 565 | TTree* treeH = fLoader->TreeH(); |
e8636ba0 | 566 | if (treeH != 0x0) |
1df4a03e | 567 | { |
e9bef706 | 568 | rv = static_cast<Int_t>(treeH->GetEntries()); |
1df4a03e | 569 | } |
570 | else | |
571 | { | |
572 | AliError("Could not get TreeH"); | |
573 | } | |
574 | ||
e9bef706 | 575 | fLoader->UnloadHits(); |
1df4a03e | 576 | |
577 | return rv; | |
578 | } | |
579 | ||
580 | //_____________________________________________________________________________ | |
581 | Int_t | |
e9bef706 | 582 | AliMUONMCDataInterface::NumberOfTrackRefs(Int_t event) |
1df4a03e | 583 | { |
584 | /// Number of track references in the event | |
e8636ba0 | 585 | if ( not IsValid()) return -1; |
1df4a03e | 586 | |
e8636ba0 | 587 | if (event != fCurrentEvent) |
588 | { | |
589 | ResetStores(); | |
590 | if ( not LoadEvent(event) ) return -1; | |
591 | } | |
e9bef706 | 592 | |
593 | fLoader->GetRunLoader()->LoadTrackRefs(); | |
1df4a03e | 594 | |
e8636ba0 | 595 | Int_t rv(-1); |
1df4a03e | 596 | |
e9bef706 | 597 | TTree* treeTR = fLoader->GetRunLoader()->TreeTR(); |
e8636ba0 | 598 | if (treeTR != 0x0) |
1df4a03e | 599 | { |
e9bef706 | 600 | rv = static_cast<Int_t>(treeTR->GetEntries()); |
1df4a03e | 601 | } |
602 | else | |
603 | { | |
604 | AliError("Could not get TreeTR"); | |
605 | } | |
606 | ||
e9bef706 | 607 | fLoader->GetRunLoader()->UnloadTrackRefs(); |
1df4a03e | 608 | |
609 | return rv; | |
610 | } | |
611 | ||
e9bef706 | 612 | //_____________________________________________________________________________ |
613 | void | |
614 | AliMUONMCDataInterface::Open(const char* filename) | |
615 | { | |
616 | /// Connect to a given galice.root file | |
617 | ||
e8636ba0 | 618 | ResetStores(); |
e9bef706 | 619 | |
620 | fCurrentEvent=-1; | |
621 | ||
e8636ba0 | 622 | if ( fLoader != 0x0 ) |
e9bef706 | 623 | { |
624 | delete fLoader->GetRunLoader(); | |
625 | } | |
626 | ||
627 | fLoader = 0x0; | |
628 | ||
629 | fIsValid = kTRUE; | |
630 | ||
631 | TString foldername(Form("%s-%d",ClassName(),fgInstanceCounter)); | |
632 | ||
633 | while (AliRunLoader::GetRunLoader(foldername)) | |
634 | { | |
635 | delete AliRunLoader::GetRunLoader(foldername); | |
636 | } | |
637 | ||
638 | AliRunLoader* runLoader = AliRunLoader::Open(filename,foldername); | |
e8636ba0 | 639 | if (runLoader == 0x0) |
e9bef706 | 640 | { |
641 | AliError(Form("Cannot open file %s",filename)); | |
642 | fIsValid = kFALSE; | |
fc2293be | 643 | return; |
e9bef706 | 644 | } |
aa73f8fb | 645 | |
646 | // Get run number and set it to CDB manager | |
647 | runLoader->LoadHeader(); | |
648 | if ( ! runLoader->GetHeader() ) { | |
649 | AliError("Cannot load header."); | |
650 | fIsValid = kFALSE; | |
651 | } | |
652 | else { | |
653 | Int_t runNumber = runLoader->GetHeader()->GetRun(); | |
654 | AliCDBManager::Instance()->SetRun(runNumber); | |
655 | } | |
656 | runLoader->UnloadHeader(); | |
657 | ||
e9bef706 | 658 | fLoader = runLoader->GetDetectorLoader("MUON"); |
e8636ba0 | 659 | if (fLoader == 0x0) |
e9bef706 | 660 | { |
661 | AliError("Cannot get AliMUONLoader"); | |
662 | fIsValid = kFALSE; | |
663 | } | |
664 | ||
e8636ba0 | 665 | if (not IsValid()) |
e9bef706 | 666 | { |
667 | AliError(Form("Could not access %s filename. Object is unuseable",filename)); | |
668 | } | |
669 | } | |
670 | ||
671 | //_____________________________________________________________________________ | |
e8636ba0 | 672 | Bool_t AliMUONMCDataInterface::GetEvent(Int_t event) |
e9bef706 | 673 | { |
e8636ba0 | 674 | /// Loads all simulated data for the given event. |
675 | ||
676 | if (HitStore(event, 0) == 0x0) return kFALSE; | |
677 | if (SDigitStore(event) == 0x0) return kFALSE; | |
678 | if (DigitStore(event) == 0x0) return kFALSE; | |
679 | if (TriggerStore(event) == 0x0) return kFALSE; | |
680 | if (TrackRefs(event, 0) == 0x0) return kFALSE; | |
681 | return kTRUE; | |
682 | } | |
683 | ||
684 | //_____________________________________________________________________________ | |
685 | Int_t AliMUONMCDataInterface::NumberOfParticles() | |
686 | { | |
687 | /// Returns the total number of particles in the kinematics tree. | |
688 | ||
689 | AliStack* stack = Stack(fCurrentEvent); | |
690 | if ( stack == 0x0 ) return -1; | |
691 | return (Int_t) stack->GetNtrack(); | |
692 | } | |
693 | ||
694 | //_____________________________________________________________________________ | |
695 | TParticle* AliMUONMCDataInterface::Particle(Int_t index) | |
696 | { | |
697 | /// Returns the index'th particle in the kinematics tree. | |
698 | /// @param index The index number of the particle in the range [0 ... N-1] | |
699 | /// where N = NumberOfParticles() | |
700 | ||
701 | AliStack* stack = Stack(fCurrentEvent); | |
702 | if ( stack == 0x0 ) return 0x0; | |
703 | return static_cast<TParticle*>( stack->Particle(index) ); | |
704 | } | |
705 | ||
706 | //_____________________________________________________________________________ | |
707 | Int_t AliMUONMCDataInterface::NumberOfTracks() | |
708 | { | |
709 | /// Returns the number of primary tracks (from primary particles) in the current event. | |
710 | ||
711 | return NumberOfTracks(fCurrentEvent); | |
712 | } | |
713 | ||
714 | //_____________________________________________________________________________ | |
715 | Int_t AliMUONMCDataInterface::NumberOfHits(Int_t track) | |
716 | { | |
717 | /// Returns the number of hits for a given primary track/particle. | |
718 | /// @param track The track number in the range [0 .. N-1] | |
719 | /// where N = NumberOfTracks() | |
720 | ||
721 | TIterator* iter = GetIterator(kHitIterator, track); | |
722 | return CountObjects(iter); | |
723 | } | |
724 | ||
725 | //_____________________________________________________________________________ | |
726 | AliMUONHit* | |
727 | AliMUONMCDataInterface::Hit(Int_t track, Int_t index) | |
728 | { | |
729 | /// Returns a pointer to the index'th hit object. | |
730 | /// @param track The track number in the range [0 .. N-1] | |
731 | /// where N = NumberOfTracks() | |
732 | /// @param index The index number of the hit in the range [0 ... M-1] | |
733 | /// where M = NumberOfHits(track) | |
734 | ||
735 | TIterator* iter = GetIterator(kHitIterator, track); | |
736 | return static_cast<AliMUONHit*>( FetchObject(iter, index) ); | |
737 | } | |
738 | ||
739 | //_____________________________________________________________________________ | |
740 | Int_t AliMUONMCDataInterface::NumberOfSDigits(Int_t detElemId) | |
741 | { | |
742 | /// Returns the number of summable digits to be found on a given detector element. | |
743 | /// @param detElemId The detector element ID number to search on. | |
744 | ||
745 | TIterator* iter = GetIterator(kSDigitIteratorByDetectorElement, detElemId); | |
746 | return CountObjects(iter); | |
747 | } | |
748 | ||
749 | //_____________________________________________________________________________ | |
750 | AliMUONVDigit* AliMUONMCDataInterface::SDigit(Int_t detElemId, Int_t index) | |
751 | { | |
752 | /// Returns the a pointer to the index'th summable digit on the specified detector element. | |
753 | /// @param detElemId The detector element ID number to search on. | |
754 | /// @param index The index number of the digit to fetch in the range [0 .. N-1], | |
755 | /// where N = NumberOfDigits(detElemId) | |
756 | ||
757 | TIterator* iter = GetIterator(kSDigitIteratorByDetectorElement, detElemId); | |
758 | return static_cast<AliMUONVDigit*>( FetchObject(iter, index) ); | |
759 | } | |
760 | ||
761 | //_____________________________________________________________________________ | |
762 | Int_t AliMUONMCDataInterface::NumberOfSDigits(Int_t chamber, Int_t cathode) | |
763 | { | |
764 | /// Returns the number of summable digits to be found on a specific chamber and cathode. | |
765 | /// @param chamber The chamber number in the range [0 .. 13]. | |
766 | /// @param cathode The cathode in the range [0 .. 1], where 0 is the bending and | |
767 | /// 1 is the non-bending plane. | |
768 | ||
769 | TIterator* iter = GetIterator(kSDigitIteratorByChamberAndCathode, chamber, cathode); | |
770 | return CountObjects(iter); | |
771 | } | |
772 | ||
773 | //_____________________________________________________________________________ | |
774 | AliMUONVDigit* AliMUONMCDataInterface::SDigit(Int_t chamber, Int_t cathode, Int_t index) | |
775 | { | |
776 | /// Returns the a pointer to the index'th summable digit on the specified chamber and cathode. | |
777 | /// @param chamber The chamber number in the range [0 .. 13]. | |
778 | /// @param cathode The cathode in the range [0 .. 1], where 0 is the bending and | |
779 | /// 1 is the non-bending plane. | |
780 | /// @param index The index number of the digit to fetch in the range [0 .. N-1], | |
781 | /// where N = NumberOfDigits(chamber, cathode) | |
782 | ||
783 | TIterator* iter = GetIterator(kSDigitIteratorByChamberAndCathode, chamber, cathode); | |
784 | return static_cast<AliMUONVDigit*>( FetchObject(iter, index) ); | |
785 | } | |
786 | ||
787 | //_____________________________________________________________________________ | |
788 | Int_t AliMUONMCDataInterface::NumberOfDigits(Int_t detElemId) | |
789 | { | |
790 | /// Returns the number of simulated digits to be found on a given detector element. | |
791 | /// @param detElemId The detector element ID number to search on. | |
792 | ||
793 | TIterator* iter = GetIterator(kDigitIteratorByDetectorElement, detElemId); | |
794 | return CountObjects(iter); | |
795 | } | |
796 | ||
797 | //_____________________________________________________________________________ | |
798 | AliMUONVDigit* AliMUONMCDataInterface::Digit(Int_t detElemId, Int_t index) | |
799 | { | |
800 | /// Returns the a pointer to the index'th simulated digit on the specified detector element. | |
801 | /// @param detElemId The detector element ID number to search on. | |
802 | /// @param index The index number of the digit to fetch in the range [0 .. N-1], | |
803 | /// where N = NumberOfDigits(detElemId) | |
804 | ||
805 | TIterator* iter = GetIterator(kDigitIteratorByDetectorElement, detElemId); | |
806 | return static_cast<AliMUONVDigit*>( FetchObject(iter, index) ); | |
807 | } | |
808 | ||
809 | //_____________________________________________________________________________ | |
810 | Int_t AliMUONMCDataInterface::NumberOfDigits(Int_t chamber, Int_t cathode) | |
811 | { | |
812 | /// Returns the number of simulated digits to be found on a specific chamber and cathode. | |
813 | /// @param chamber The chamber number in the range [0 .. 13]. | |
814 | /// @param cathode The cathode in the range [0 .. 1], where 0 is the bending and | |
815 | /// 1 is the non-bending plane. | |
816 | ||
817 | TIterator* iter = GetIterator(kDigitIteratorByChamberAndCathode, chamber, cathode); | |
818 | return CountObjects(iter); | |
819 | } | |
820 | ||
821 | //_____________________________________________________________________________ | |
822 | AliMUONVDigit* AliMUONMCDataInterface::Digit(Int_t chamber, Int_t cathode, Int_t index) | |
823 | { | |
824 | /// Returns the a pointer to the index'th simulated digit on the specified chamber and cathode. | |
825 | /// @param chamber The chamber number in the range [0 .. 13]. | |
826 | /// @param cathode The cathode in the range [0 .. 1], where 0 is the bending and | |
827 | /// 1 is the non-bending plane. | |
828 | /// @param index The index number of the digit to fetch in the range [0 .. N-1], | |
829 | /// where N = NumberOfDigits(chamber, cathode) | |
830 | ||
831 | TIterator* iter = GetIterator(kDigitIteratorByChamberAndCathode, chamber, cathode); | |
832 | return static_cast<AliMUONVDigit*>( FetchObject(iter, index) ); | |
833 | } | |
834 | ||
835 | //_____________________________________________________________________________ | |
836 | Int_t AliMUONMCDataInterface::NumberOfLocalTriggers() | |
837 | { | |
838 | /// Returns the number of simulated local trigger objects. | |
839 | ||
840 | TIterator* iter = GetIterator(kLocalTriggerIterator); | |
841 | return CountObjects(iter); | |
842 | } | |
843 | ||
844 | //_____________________________________________________________________________ | |
845 | AliMUONLocalTrigger* AliMUONMCDataInterface::LocalTrigger(Int_t index) | |
846 | { | |
847 | /// Returns a pointer to the index'th simulated local trigger object. | |
848 | /// @param index The index number of the local trigger object to fetch in the range [0 .. N-1], | |
849 | /// where N = NumberOfLocalTriggers() | |
850 | ||
851 | TIterator* iter = GetIterator(kLocalTriggerIterator); | |
852 | return static_cast<AliMUONLocalTrigger*>( FetchObject(iter, index) ); | |
853 | } | |
854 | ||
855 | //_____________________________________________________________________________ | |
856 | Int_t AliMUONMCDataInterface::NumberOfRegionalTriggers() | |
857 | { | |
858 | /// Returns the number of simulated regional trigger objects. | |
859 | ||
860 | TIterator* iter = GetIterator(kRegionalTriggerIterator); | |
861 | return CountObjects(iter); | |
862 | } | |
863 | ||
864 | //_____________________________________________________________________________ | |
865 | AliMUONRegionalTrigger* AliMUONMCDataInterface::RegionalTrigger(Int_t index) | |
866 | { | |
867 | /// Returns a pointer to the index'th simulated regional trigger object. | |
868 | /// @param index The index number of the regional trigger object to fetch in the range [0 .. N-1], | |
869 | /// where N = NumberOfRegionalTriggers() | |
870 | ||
871 | TIterator* iter = GetIterator(kRegionalTriggerIterator); | |
872 | return static_cast<AliMUONRegionalTrigger*>( FetchObject(iter, index) ); | |
873 | } | |
874 | ||
875 | //_____________________________________________________________________________ | |
876 | AliMUONGlobalTrigger* AliMUONMCDataInterface::GlobalTrigger() | |
877 | { | |
878 | /// Returns a pointer to the simulated global trigger object for the event. | |
879 | ||
880 | AliMUONVTriggerStore* store = TriggerStore(fCurrentEvent); | |
881 | if (store == 0x0) return 0x0; | |
882 | return store->Global(); | |
883 | } | |
884 | ||
885 | //_____________________________________________________________________________ | |
886 | Int_t AliMUONMCDataInterface::NumberOfTrackRefs() | |
887 | { | |
888 | /// Number of track references in the currently selected event. | |
889 | ||
890 | return NumberOfTrackRefs(fCurrentEvent); | |
891 | } | |
892 | ||
893 | //_____________________________________________________________________________ | |
894 | TClonesArray* AliMUONMCDataInterface::TrackRefs(Int_t track) | |
895 | { | |
896 | /// Returns the track references for a given track in the current event. | |
897 | /// @param track The track to returns track references for. In the range [0 .. N-1] | |
898 | /// where N = NumberOfTrackRefs() | |
899 | ||
900 | return TrackRefs(fCurrentEvent, track); | |
901 | } | |
902 | ||
903 | //_____________________________________________________________________________ | |
904 | void AliMUONMCDataInterface::ResetStores() | |
905 | { | |
906 | /// Deletes all the store objects that have been created and resets the pointers to 0x0. | |
907 | /// The temporary iterator object is automatically reset. See ResetIterator for more details. | |
908 | ||
909 | ResetIterator(); | |
910 | if (fHitStore != 0x0) | |
e9bef706 | 911 | { |
e8636ba0 | 912 | delete fHitStore; |
913 | fHitStore = 0x0; | |
e9bef706 | 914 | } |
e8636ba0 | 915 | if (fSDigitStore != 0x0) |
916 | { | |
917 | delete fSDigitStore; | |
918 | fSDigitStore = 0x0; | |
919 | } | |
920 | if (fDigitStore != 0x0) | |
921 | { | |
922 | delete fDigitStore; | |
923 | fDigitStore = 0x0; | |
924 | } | |
925 | if (fTrackRefs != 0x0) | |
e9bef706 | 926 | { |
e8636ba0 | 927 | delete fTrackRefs; |
928 | fTrackRefs = 0x0; | |
e9bef706 | 929 | } |
e8636ba0 | 930 | if (fTriggerStore != 0x0) |
931 | { | |
932 | delete fTriggerStore; | |
933 | fTriggerStore = 0x0; | |
934 | } | |
935 | } | |
936 | ||
937 | //_____________________________________________________________________________ | |
938 | TIterator* AliMUONMCDataInterface::GetIterator(IteratorType type, Int_t x, Int_t y) | |
939 | { | |
940 | /// Creates an appropriate iterator object and returns it. | |
941 | /// If the iterator has already been created then that one is returned otherwise | |
942 | /// a new object is created. | |
943 | /// Depending on the value of 'type' the semantics of parameters x and y can change. | |
944 | /// @param type The type of iterator to create. | |
945 | /// @param x This is the detector element ID if type equals kDigitIteratorByDetectorElement | |
946 | /// or kSDigitIteratorByDetectorElement. | |
947 | /// If type equals kDigitIteratorByChamberAndCathode or | |
948 | /// kSDigitIteratorByChamberAndCathode then this is the chamber number. | |
949 | /// For type == kHitIterator the parameter x is the track number. | |
950 | /// In all other cases this parameter is ignored. | |
951 | /// @param y If type equals kDigitIteratorByChamberAndCathode or | |
952 | /// kSDigitIteratorByChamberAndCathode then this parameter is the cathode | |
953 | /// number. In all other cases this parameter is ignored. | |
954 | ||
955 | if (type == fCurrentIteratorType and fDataX == x and fDataY == y) | |
956 | return fIterator; | |
e9bef706 | 957 | |
e8636ba0 | 958 | if (fCurrentEvent == -1) |
e9bef706 | 959 | { |
e8636ba0 | 960 | AliError("No event was selected. Try first using GetEvent()."); |
961 | return 0x0; | |
e9bef706 | 962 | } |
963 | ||
e8636ba0 | 964 | ResetIterator(); |
e9bef706 | 965 | |
e8636ba0 | 966 | switch (type) |
967 | { | |
968 | case kHitIterator: | |
969 | { | |
970 | Int_t track = x; | |
971 | AliMUONVHitStore* store = HitStore(fCurrentEvent, track); | |
972 | if (store == 0x0) return 0x0; | |
973 | fIterator = store->CreateIterator(); | |
974 | if (fIterator == 0x0) return 0x0; | |
975 | fCurrentIteratorType = kHitIterator; | |
976 | return fIterator; | |
977 | } | |
978 | ||
979 | case kSDigitIteratorByDetectorElement: | |
980 | { | |
981 | Int_t detElem = x; | |
982 | AliMUONVDigitStore* store = SDigitStore(fCurrentEvent); | |
983 | if (store == 0x0) return 0x0; | |
e8636ba0 | 984 | fIterator = store->CreateIterator(detElem, detElem, 2); |
985 | if (fIterator == 0x0) return 0x0; | |
986 | fCurrentIteratorType = kSDigitIteratorByDetectorElement; | |
987 | fDataX = detElem; | |
988 | return fIterator; | |
989 | } | |
990 | ||
991 | case kSDigitIteratorByChamberAndCathode: | |
992 | { | |
993 | Int_t chamber = x; | |
994 | Int_t cathode = y; | |
995 | if (chamber < 0 or AliMpConstants::NofChambers() <= chamber) | |
996 | { | |
997 | AliError(Form( | |
998 | "Must have give a chamber value in the range [0..%d], but got a value of: %d", | |
999 | AliMpConstants::NofChambers() - 1, | |
1000 | chamber | |
1001 | )); | |
1002 | return 0x0; | |
1003 | } | |
1004 | if (cathode < 0 or 1 < cathode) | |
1005 | { | |
1006 | AliError(Form("Must have give a cathode value in the range [0..1], but got a value of: %d", cathode)); | |
1007 | return 0x0; | |
1008 | } | |
1009 | ||
1010 | AliMUONVDigitStore* store = SDigitStore(fCurrentEvent); | |
1011 | if (store == 0x0) return 0x0; | |
168e9c4d | 1012 | MpPair_t pair = AliMpDEManager::GetDetElemIdRange(chamber); |
1013 | fIterator = store->CreateIterator(AliMp::PairFirst(pair), AliMp::PairSecond(pair), cathode); | |
e8636ba0 | 1014 | if (fIterator == 0x0) return 0x0; |
1015 | fCurrentIteratorType = kSDigitIteratorByChamberAndCathode; | |
1016 | fDataX = chamber; | |
1017 | fDataY = cathode; | |
1018 | return fIterator; | |
1019 | } | |
1020 | ||
1021 | case kDigitIteratorByDetectorElement: | |
1022 | { | |
1023 | Int_t detElem = x; | |
1024 | AliMUONVDigitStore* store = DigitStore(fCurrentEvent); | |
1025 | if (store == 0x0) return 0x0; | |
e8636ba0 | 1026 | fIterator = store->CreateIterator(detElem, detElem, 2); |
1027 | if (fIterator == 0x0) return 0x0; | |
1028 | fCurrentIteratorType = kDigitIteratorByDetectorElement; | |
1029 | fDataX = detElem; | |
1030 | return fIterator; | |
1031 | } | |
1032 | ||
1033 | case kDigitIteratorByChamberAndCathode: | |
1034 | { | |
1035 | Int_t chamber = x; | |
1036 | Int_t cathode = y; | |
1037 | if (chamber < 0 or AliMpConstants::NofChambers() <= chamber) | |
1038 | { | |
1039 | AliError(Form( | |
1040 | "Must have give a chamber value in the range [0..%d], but got a value of: %d", | |
1041 | AliMpConstants::NofChambers() - 1, | |
1042 | chamber | |
1043 | )); | |
1044 | return 0x0; | |
1045 | } | |
1046 | if (cathode < 0 or 1 < cathode) | |
1047 | { | |
1048 | AliError(Form("Must have give a cathode value in the range [0..1], but got a value of: %d", cathode)); | |
1049 | return 0x0; | |
1050 | } | |
1051 | ||
1052 | AliMUONVDigitStore* store = DigitStore(fCurrentEvent); | |
1053 | if (store == 0x0) return 0x0; | |
168e9c4d | 1054 | MpPair_t pair = AliMpDEManager::GetDetElemIdRange(chamber); |
1055 | fIterator = store->CreateIterator(AliMp::PairFirst(pair), AliMp::PairSecond(pair), cathode); | |
e8636ba0 | 1056 | if (fIterator == 0x0) return 0x0; |
1057 | fCurrentIteratorType = kDigitIteratorByChamberAndCathode; | |
1058 | fDataX = chamber; | |
1059 | fDataY = cathode; | |
1060 | return fIterator; | |
1061 | } | |
1062 | ||
1063 | case kLocalTriggerIterator: | |
1064 | { | |
1065 | AliMUONVTriggerStore* store = TriggerStore(fCurrentEvent); | |
1066 | if (store == 0x0) return 0x0; | |
1067 | fIterator = store->CreateLocalIterator(); | |
1068 | if (fIterator == 0x0) return 0x0; | |
1069 | fCurrentIteratorType = kLocalTriggerIterator; | |
1070 | return fIterator; | |
1071 | } | |
1072 | ||
1073 | case kRegionalTriggerIterator: | |
1074 | { | |
1075 | AliMUONVTriggerStore* store = TriggerStore(fCurrentEvent); | |
1076 | if (store == 0x0) return 0x0; | |
1077 | fIterator = store->CreateRegionalIterator(); | |
1078 | if (fIterator == 0x0) return 0x0; | |
1079 | fCurrentIteratorType = kRegionalTriggerIterator; | |
1080 | return fIterator; | |
1081 | } | |
1082 | ||
1083 | default: | |
1084 | return 0x0; | |
1085 | } | |
e9bef706 | 1086 | } |
1087 | ||
1df4a03e | 1088 | //_____________________________________________________________________________ |
e8636ba0 | 1089 | void AliMUONMCDataInterface::ResetIterator() |
1df4a03e | 1090 | { |
e8636ba0 | 1091 | /// The temporary iterator object is deleted if it exists and the pointer reset to 0x0. |
1092 | /// The iterator type and temporary data indicating the state of the iterator are | |
1093 | /// also reset. | |
1df4a03e | 1094 | |
e8636ba0 | 1095 | if (fIterator != 0x0) delete fIterator; |
1096 | fCurrentIteratorType = kNoIterator; | |
1097 | fCurrentIndex = fDataX = fDataY = -1; | |
1098 | fIterator = 0x0; | |
1df4a03e | 1099 | } |
1100 | ||
1101 | //_____________________________________________________________________________ | |
e8636ba0 | 1102 | Int_t AliMUONMCDataInterface::CountObjects(TIterator* iter) |
1df4a03e | 1103 | { |
e8636ba0 | 1104 | /// Counts the number of objects in the iterator and resets it. |
1105 | /// @return The number of objects in 'iter'. | |
e9bef706 | 1106 | |
e8636ba0 | 1107 | if (iter == 0x0) return -1; |
1108 | Int_t count = 0; | |
1109 | iter->Reset(); | |
1110 | while ( iter->Next() != 0x0 ) count++; | |
1111 | iter->Reset(); | |
1112 | fCurrentIndex = -1; | |
1113 | return count; | |
e9bef706 | 1114 | } |
1115 | ||
1116 | //_____________________________________________________________________________ | |
e8636ba0 | 1117 | TObject* AliMUONMCDataInterface::FetchObject(TIterator* iter, Int_t index) |
e9bef706 | 1118 | { |
e8636ba0 | 1119 | /// Fetches the index'th object from the iterator counting the first object |
1120 | /// returned by iterator after it is reset as index == 0. The next object | |
1121 | /// has index == 1 and so on where the last object returned by the iterator | |
1122 | /// has index == N-1 where N = CountObjects(iter) | |
1123 | /// This method will only reset the iterator if index is smaller than | |
1124 | /// fCurrentIndex, which is used to track the iteration progress and is | |
1125 | /// updated when a new object if returned by this method. | |
1126 | /// @param iter The iterator to fetch an object from. | |
1127 | /// @param index The index number of the object to fetch in the range [0 .. N-1] | |
1128 | /// where N = CountObjects(iter) | |
1129 | ||
1130 | if (index < 0) | |
e9bef706 | 1131 | { |
e8636ba0 | 1132 | AliError(Form("Index is out of bounds. Got a value of %d.", index)); |
e9bef706 | 1133 | return 0x0; |
1134 | } | |
e8636ba0 | 1135 | |
1136 | if (iter == 0x0) return 0x0; | |
1137 | if (index <= fCurrentIndex) | |
e9bef706 | 1138 | { |
e8636ba0 | 1139 | iter->Reset(); |
1140 | fCurrentIndex = -1; | |
e9bef706 | 1141 | } |
1142 | ||
e8636ba0 | 1143 | TObject* object = 0x0; |
1144 | while (fCurrentIndex < index) | |
e9bef706 | 1145 | { |
e8636ba0 | 1146 | object = iter->Next(); |
1147 | if (object == 0x0) | |
1148 | { | |
1149 | AliError(Form("Index is out of bounds. Got a value of %d.", index)); | |
1150 | iter->Reset(); | |
1151 | fCurrentIndex = -1; | |
1152 | return 0x0; | |
1153 | } | |
1154 | fCurrentIndex++; | |
e9bef706 | 1155 | } |
e8636ba0 | 1156 | return object; |
1df4a03e | 1157 | } |