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596a855f 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// class for running the reconstruction //
21// //
22// Clusters and tracks are created for all detectors and all events by //
23// typing: //
24// //
25// AliReconstruction rec; //
26// rec.Run(); //
27// //
28// The Run method returns kTRUE in case of successful execution. //
29// The name of the galice file can be changed from the default //
e583c30d 30// "galice.root" by passing it as argument to the AliReconstruction //
31// constructor or by //
596a855f 32// //
33// rec.SetGAliceFile("..."); //
34// //
35// The reconstruction can be switched on or off for individual detectors by //
36// //
37// rec.SetRunReconstruction("..."); //
38// //
39// The argument is a (case sensitive) string with the names of the //
40// detectors separated by a space. The special string "ALL" selects all //
41// available detectors. This is the default. //
42// //
43// The tracking in ITS, TPC and TRD and the creation of ESD tracks can be //
44// switched off by //
45// //
46// rec.SetRunTracking(kFALSE); //
47// //
48// The filling of additional ESD information can be steered by //
49// //
50// rec.SetFillESD("..."); //
51// //
52// Again, the string specifies the list of detectors. The default is "ALL". //
53// //
54// The reconstruction requires digits as input. For the creation of digits //
55// have a look at the class AliSimulation. //
56// //
24f7a148 57// For debug purposes the method SetCheckPointLevel can be used. If the //
58// argument is greater than 0, files with ESD events will be written after //
59// selected steps of the reconstruction for each event: //
60// level 1: after tracking and after filling of ESD (final) //
61// level 2: in addition after each tracking step //
62// level 3: in addition after the filling of ESD for each detector //
63// If a final check point file exists for an event, this event will be //
64// skipped in the reconstruction. The tracking and the filling of ESD for //
65// a detector will be skipped as well, if the corresponding check point //
66// file exists. The ESD event will then be loaded from the file instead. //
67// //
596a855f 68///////////////////////////////////////////////////////////////////////////////
69
70
71#include "AliReconstruction.h"
72#include "AliRunLoader.h"
73#include "AliRun.h"
74#include "AliModule.h"
75#include "AliDetector.h"
76#include "AliTracker.h"
77#include "AliESD.h"
2257f27e 78#include "AliESDVertex.h"
79#include "AliVertexer.h"
596a855f 80#include "AliHeader.h"
81#include "AliGenEventHeader.h"
82#include "AliESDpid.h"
a866ac60 83#include "AliMagF.h"
596a855f 84#include <TArrayF.h>
24f7a148 85#include <TSystem.h>
86#include <TROOT.h>
596a855f 87
88
89ClassImp(AliReconstruction)
90
91
92//_____________________________________________________________________________
e583c30d 93AliReconstruction::AliReconstruction(const char* gAliceFilename,
94 const char* name, const char* title) :
95 TNamed(name, title),
96
97 fRunReconstruction("ALL"),
2257f27e 98 fRunVertexFinder(kTRUE),
e583c30d 99 fRunTracking(kTRUE),
100 fFillESD("ALL"),
101 fGAliceFileName(gAliceFilename),
102 fStopOnError(kFALSE),
24f7a148 103 fCheckPointLevel(0),
e583c30d 104
105 fRunLoader(NULL),
106 fITSLoader(NULL),
2257f27e 107 fITSVertexer(NULL),
e583c30d 108 fITSTracker(NULL),
109 fTPCLoader(NULL),
110 fTPCTracker(NULL),
111 fTRDLoader(NULL),
112 fTRDTracker(NULL),
113 fTOFLoader(NULL),
114 fTOFTracker(NULL)
596a855f 115{
116// create reconstruction object with default parameters
117
596a855f 118}
119
120//_____________________________________________________________________________
121AliReconstruction::AliReconstruction(const AliReconstruction& rec) :
e583c30d 122 TNamed(rec),
123
124 fRunReconstruction(rec.fRunReconstruction),
2257f27e 125 fRunVertexFinder(rec.fRunVertexFinder),
e583c30d 126 fRunTracking(rec.fRunTracking),
127 fFillESD(rec.fFillESD),
128 fGAliceFileName(rec.fGAliceFileName),
129 fStopOnError(rec.fStopOnError),
24f7a148 130 fCheckPointLevel(0),
e583c30d 131
132 fRunLoader(NULL),
133 fITSLoader(NULL),
2257f27e 134 fITSVertexer(NULL),
e583c30d 135 fITSTracker(NULL),
136 fTPCLoader(NULL),
137 fTPCTracker(NULL),
138 fTRDLoader(NULL),
139 fTRDTracker(NULL),
140 fTOFLoader(NULL),
141 fTOFTracker(NULL)
596a855f 142{
143// copy constructor
144
596a855f 145}
146
147//_____________________________________________________________________________
148AliReconstruction& AliReconstruction::operator = (const AliReconstruction& rec)
149{
150// assignment operator
151
152 this->~AliReconstruction();
153 new(this) AliReconstruction(rec);
154 return *this;
155}
156
157//_____________________________________________________________________________
158AliReconstruction::~AliReconstruction()
159{
160// clean up
161
e583c30d 162 CleanUp();
596a855f 163}
164
165
166//_____________________________________________________________________________
167void AliReconstruction::SetGAliceFile(const char* fileName)
168{
169// set the name of the galice file
170
171 fGAliceFileName = fileName;
172}
173
174
175//_____________________________________________________________________________
176Bool_t AliReconstruction::Run()
177{
178// run the reconstruction
179
180 // open the run loader
596a855f 181 fRunLoader = AliRunLoader::Open(fGAliceFileName.Data());
182 if (!fRunLoader) {
183 Error("Run", "no run loader found in file %s",
184 fGAliceFileName.Data());
e583c30d 185 CleanUp();
596a855f 186 return kFALSE;
187 }
188 fRunLoader->LoadgAlice();
e583c30d 189 AliRun* aliRun = fRunLoader->GetAliRun();
190 if (!aliRun) {
596a855f 191 Error("Run", "no gAlice object found in file %s",
192 fGAliceFileName.Data());
e583c30d 193 CleanUp();
596a855f 194 return kFALSE;
195 }
e583c30d 196 gAlice = aliRun;
596a855f 197
198 // local reconstruction
199 if (!fRunReconstruction.IsNull()) {
200 if (!RunReconstruction(fRunReconstruction)) {
e583c30d 201 if (fStopOnError) {CleanUp(); return kFALSE;}
596a855f 202 }
203 }
2257f27e 204 if (!fRunVertexFinder && !fRunTracking && fFillESD.IsNull()) return kTRUE;
205
206 // get vertexer
207 if (fRunVertexFinder && !CreateVertexer()) {
208 if (fStopOnError) {
209 CleanUp();
210 return kFALSE;
211 }
212 }
596a855f 213
24f7a148 214 // get loaders and trackers
215 if (fRunTracking && !CreateTrackers()) {
216 if (fStopOnError) {
217 CleanUp();
218 return kFALSE;
219 }
596a855f 220 }
24f7a148 221
596a855f 222 // create the ESD output file
223 TFile* file = TFile::Open("AliESDs.root", "RECREATE");
224 if (!file->IsOpen()) {
225 Error("Run", "opening AliESDs.root failed");
e583c30d 226 if (fStopOnError) {CleanUp(file); return kFALSE;}
596a855f 227 }
228
229 // loop over events
230 for (Int_t iEvent = 0; iEvent < fRunLoader->GetNumberOfEvents(); iEvent++) {
231 Info("Run", "processing event %d", iEvent);
596a855f 232 fRunLoader->GetEvent(iEvent);
24f7a148 233
234 char fileName[256];
235 sprintf(fileName, "ESD_%d.%d_final.root",
236 aliRun->GetRunNumber(), aliRun->GetEvNumber());
237 if (!gSystem->AccessPathName(fileName)) continue;
238
239 AliESD* esd = new AliESD;
e583c30d 240 esd->SetRunNumber(aliRun->GetRunNumber());
241 esd->SetEventNumber(aliRun->GetEvNumber());
242 esd->SetMagneticField(aliRun->Field()->SolenoidField());
596a855f 243
2257f27e 244 // vertex finder
245 if (fRunVertexFinder) {
246 if (!ReadESD(esd, "vertex")) {
247 if (!RunVertexFinder(esd)) {
248 if (fStopOnError) {CleanUp(file); return kFALSE;}
249 }
250 if (fCheckPointLevel > 0) WriteESD(esd, "vertex");
251 }
252 }
253
596a855f 254 // barrel tracking
255 if (fRunTracking) {
24f7a148 256 if (!ReadESD(esd, "tracking")) {
257 if (!RunTracking(esd)) {
258 if (fStopOnError) {CleanUp(file); return kFALSE;}
259 }
260 if (fCheckPointLevel > 0) WriteESD(esd, "tracking");
596a855f 261 }
262 }
263
264 // fill ESD
265 if (!fFillESD.IsNull()) {
266 if (!FillESD(esd, fFillESD)) {
e583c30d 267 if (fStopOnError) {CleanUp(file); return kFALSE;}
596a855f 268 }
269 }
270
271 // combined PID
272 AliESDpid::MakePID(esd);
24f7a148 273 if (fCheckPointLevel > 1) WriteESD(esd, "PID");
596a855f 274
275 // write ESD
276 char name[100];
277 sprintf(name, "ESD%d", iEvent);
278 file->cd();
279 if (!esd->Write(name)) {
280 Error("Run", "writing ESD failed");
e583c30d 281 if (fStopOnError) {CleanUp(file); return kFALSE;}
596a855f 282 }
24f7a148 283 file->Flush();
284
285 if (fCheckPointLevel > 0) WriteESD(esd, "final");
d9b8978b 286 delete esd;
596a855f 287 }
288
e583c30d 289 CleanUp(file);
596a855f 290
291 return kTRUE;
292}
293
294
295//_____________________________________________________________________________
296Bool_t AliReconstruction::RunReconstruction(const TString& detectors)
297{
298// run the reconstruction
299
030b532d 300 TStopwatch stopwatch;
301 stopwatch.Start();
302
596a855f 303 TString detStr = detectors;
e583c30d 304 TObjArray* detArray = fRunLoader->GetAliRun()->Detectors();
596a855f 305 for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) {
306 AliModule* det = (AliModule*) detArray->At(iDet);
307 if (!det || !det->IsActive()) continue;
308 if (IsSelected(det->GetName(), detStr)) {
309 Info("RunReconstruction", "running reconstruction for %s",
310 det->GetName());
030b532d 311 TStopwatch stopwatchDet;
312 stopwatchDet.Start();
596a855f 313 det->Reconstruct();
030b532d 314 Info("RunReconstruction", "execution time for %s:", det->GetName());
315 stopwatchDet.Print();
596a855f 316 }
317 }
318
319 if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) {
320 Error("RunReconstruction", "the following detectors were not found: %s",
321 detStr.Data());
322 if (fStopOnError) return kFALSE;
323 }
324
030b532d 325 Info("RunReconstruction", "execution time:");
326 stopwatch.Print();
327
596a855f 328 return kTRUE;
329}
330
331//_____________________________________________________________________________
2257f27e 332Bool_t AliReconstruction::RunVertexFinder(AliESD*& esd)
596a855f 333{
334// run the barrel tracking
335
030b532d 336 TStopwatch stopwatch;
337 stopwatch.Start();
338
2257f27e 339 AliESDVertex* vertex = NULL;
340 Double_t vtxPos[3] = {0, 0, 0};
341 Double_t vtxErr[3] = {0.07, 0.07, 0.1};
342 TArrayF mcVertex(3);
343 fRunLoader->GetHeader()->GenEventHeader()->PrimaryVertex(mcVertex);
344 for (Int_t i = 0; i < 3; i++) vtxPos[i] = mcVertex[i];
345
346 if (fITSVertexer) {
347 Info("RunVertexFinder", "running the ITS vertex finder");
348 fITSVertexer->SetDebug(1);
349 vertex = fITSVertexer->FindVertexForCurrentEvent(fRunLoader->GetEventNumber());
350 if(!vertex){
351 Warning("RunVertexFinder","Vertex not found \n");
c710f220 352 vertex = new AliESDVertex();
2257f27e 353 }
354 else {
355 vertex->SetTruePos(vtxPos); // store also the vertex from MC
356 }
357
358 } else {
359 Info("RunVertexFinder", "getting the primary vertex from MC");
360 vertex = new AliESDVertex(vtxPos, vtxErr);
361 }
362
363 if (vertex) {
364 vertex->GetXYZ(vtxPos);
365 vertex->GetSigmaXYZ(vtxErr);
366 } else {
367 Warning("RunVertexFinder", "no vertex reconstructed");
368 vertex = new AliESDVertex(vtxPos, vtxErr);
369 }
370 esd->SetVertex(vertex);
24f7a148 371 if (fITSTracker) fITSTracker->SetVertex(vtxPos, vtxErr);
372 if (fTPCTracker) fTPCTracker->SetVertex(vtxPos, vtxErr);
373 if (fTRDTracker) fTRDTracker->SetVertex(vtxPos, vtxErr);
2257f27e 374 delete vertex;
375
376 Info("RunVertexFinder", "execution time:");
377 stopwatch.Print();
378
379 return kTRUE;
380}
381
382//_____________________________________________________________________________
383Bool_t AliReconstruction::RunTracking(AliESD*& esd)
384{
385// run the barrel tracking
386
387 TStopwatch stopwatch;
388 stopwatch.Start();
24f7a148 389
390 if (!fTPCTracker) {
391 Error("RunTracking", "no TPC tracker");
392 return kFALSE;
393 }
596a855f 394
85555ca8 395 // TPC tracking
396 Info("RunTracking", "TPC tracking");
596a855f 397 fTPCLoader->LoadRecPoints("read");
398 TTree* tpcTree = fTPCLoader->TreeR();
399 if (!tpcTree) {
400 Error("RunTracking", "Can't get the TPC cluster tree");
401 return kFALSE;
24f7a148 402 }
596a855f 403 fTPCTracker->LoadClusters(tpcTree);
404 if (fTPCTracker->Clusters2Tracks(esd) != 0) {
85555ca8 405 Error("RunTracking", "TPC Clusters2Tracks failed");
596a855f 406 return kFALSE;
407 }
24f7a148 408 if (fCheckPointLevel > 1) WriteESD(esd, "TPC.tracking");
409
410 if (!fITSTracker) {
411 Warning("RunTracking", "no ITS tracker");
412 } else {
413
414 fRunLoader->GetAliRun()->GetDetector("TPC")->FillESD(esd); // preliminary
415 AliESDpid::MakePID(esd); // PID for the ITS tracker
416
417 // ITS tracking
418 Info("RunTracking", "ITS tracking");
419 fITSLoader->LoadRecPoints("read");
420 TTree* itsTree = fITSLoader->TreeR();
421 if (!itsTree) {
422 Error("RunTracking", "Can't get the ITS cluster tree");
423 return kFALSE;
424 }
425 fITSTracker->LoadClusters(itsTree);
426 if (fITSTracker->Clusters2Tracks(esd) != 0) {
427 Error("RunTracking", "ITS Clusters2Tracks failed");
428 return kFALSE;
429 }
430 if (fCheckPointLevel > 1) WriteESD(esd, "ITS.tracking");
596a855f 431
24f7a148 432 if (!fTRDTracker) {
433 Warning("RunTracking", "no TRD tracker");
434 } else {
435 // ITS back propagation
436 Info("RunTracking", "ITS back propagation");
437 if (fITSTracker->PropagateBack(esd) != 0) {
438 Error("RunTracking", "ITS backward propagation failed");
439 return kFALSE;
440 }
441 if (fCheckPointLevel > 1) WriteESD(esd, "ITS.back");
596a855f 442
24f7a148 443 // TPC back propagation
444 Info("RunTracking", "TPC back propagation");
445 if (fTPCTracker->PropagateBack(esd) != 0) {
446 Error("RunTracking", "TPC backward propagation failed");
447 return kFALSE;
448 }
449 if (fCheckPointLevel > 1) WriteESD(esd, "TPC.back");
450
451 // TRD back propagation
452 Info("RunTracking", "TRD back propagation");
453 fTRDLoader->LoadRecPoints("read");
454 TTree* trdTree = fTRDLoader->TreeR();
455 if (!trdTree) {
456 Error("RunTracking", "Can't get the TRD cluster tree");
457 return kFALSE;
458 }
459 fTRDTracker->LoadClusters(trdTree);
460 if (fTRDTracker->PropagateBack(esd) != 0) {
461 Error("RunTracking", "TRD backward propagation failed");
462 return kFALSE;
463 }
464 if (fCheckPointLevel > 1) WriteESD(esd, "TRD.back");
465
466 if (!fTOFTracker) {
467 Warning("RunTracking", "no TOF tracker");
468 } else {
469 // TOF back propagation
470 Info("RunTracking", "TOF back propagation");
471 fTOFLoader->LoadDigits("read");
472 TTree* tofTree = fTOFLoader->TreeD();
473 if (!tofTree) {
474 Error("RunTracking", "Can't get the TOF digits tree");
475 return kFALSE;
476 }
477 fTOFTracker->LoadClusters(tofTree);
478 if (fTOFTracker->PropagateBack(esd) != 0) {
479 Error("RunTracking", "TOF backward propagation failed");
480 return kFALSE;
481 }
482 if (fCheckPointLevel > 1) WriteESD(esd, "TOF.back");
483 fTOFTracker->UnloadClusters();
484 fTOFLoader->UnloadDigits();
485 }
596a855f 486
24f7a148 487 // TRD inward refit
488 Info("RunTracking", "TRD inward refit");
489 if (fTRDTracker->RefitInward(esd) != 0) {
490 Error("RunTracking", "TRD inward refit failed");
491 return kFALSE;
492 }
493 if (fCheckPointLevel > 1) WriteESD(esd, "TRD.refit");
494 fTRDTracker->UnloadClusters();
495 fTRDLoader->UnloadRecPoints();
496
497 // TPC inward refit
498 Info("RunTracking", "TPC inward refit");
499 if (fTPCTracker->RefitInward(esd) != 0) {
500 Error("RunTracking", "TPC inward refit failed");
501 return kFALSE;
502 }
503 if (fCheckPointLevel > 1) WriteESD(esd, "TPC.refit");
504
505 // ITS inward refit
506 Info("RunTracking", "ITS inward refit");
507 if (fITSTracker->RefitInward(esd) != 0) {
508 Error("RunTracking", "ITS inward refit failed");
509 return kFALSE;
510 }
511 if (fCheckPointLevel > 1) WriteESD(esd, "ITS.refit");
596a855f 512
24f7a148 513 } // if TRD tracker
514 fITSTracker->UnloadClusters();
515 fITSLoader->UnloadRecPoints();
596a855f 516
24f7a148 517 } // if ITS tracker
596a855f 518 fTPCTracker->UnloadClusters();
519 fTPCLoader->UnloadRecPoints();
596a855f 520
030b532d 521 Info("RunTracking", "execution time:");
522 stopwatch.Print();
523
596a855f 524 return kTRUE;
525}
526
527//_____________________________________________________________________________
24f7a148 528Bool_t AliReconstruction::FillESD(AliESD*& esd, const TString& detectors)
596a855f 529{
530// fill the event summary data
531
030b532d 532 TStopwatch stopwatch;
533 stopwatch.Start();
534
596a855f 535 TString detStr = detectors;
e583c30d 536 TObjArray* detArray = fRunLoader->GetAliRun()->Detectors();
596a855f 537 for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) {
538 AliModule* det = (AliModule*) detArray->At(iDet);
539 if (!det || !det->IsActive()) continue;
540 if (IsSelected(det->GetName(), detStr)) {
24f7a148 541 if (!ReadESD(esd, det->GetName())) {
542 Info("FillESD", "filling ESD for %s",
543 det->GetName());
544 det->FillESD(esd);
545 if (fCheckPointLevel > 2) WriteESD(esd, det->GetName());
546 }
596a855f 547 }
548 }
549
550 if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) {
551 Error("FillESD", "the following detectors were not found: %s",
552 detStr.Data());
553 if (fStopOnError) return kFALSE;
554 }
555
030b532d 556 Info("FillESD", "execution time:");
557 stopwatch.Print();
558
596a855f 559 return kTRUE;
560}
561
562
563//_____________________________________________________________________________
564Bool_t AliReconstruction::IsSelected(TString detName, TString& detectors) const
565{
566// check whether detName is contained in detectors
567// if yes, it is removed from detectors
568
569 // check if all detectors are selected
570 if ((detectors.CompareTo("ALL") == 0) ||
571 detectors.BeginsWith("ALL ") ||
572 detectors.EndsWith(" ALL") ||
573 detectors.Contains(" ALL ")) {
574 detectors = "ALL";
575 return kTRUE;
576 }
577
578 // search for the given detector
579 Bool_t result = kFALSE;
580 if ((detectors.CompareTo(detName) == 0) ||
581 detectors.BeginsWith(detName+" ") ||
582 detectors.EndsWith(" "+detName) ||
583 detectors.Contains(" "+detName+" ")) {
584 detectors.ReplaceAll(detName, "");
585 result = kTRUE;
586 }
587
588 // clean up the detectors string
589 while (detectors.Contains(" ")) detectors.ReplaceAll(" ", " ");
590 while (detectors.BeginsWith(" ")) detectors.Remove(0, 1);
591 while (detectors.EndsWith(" ")) detectors.Remove(detectors.Length()-1, 1);
592
593 return result;
594}
e583c30d 595
2257f27e 596//_____________________________________________________________________________
597Bool_t AliReconstruction::CreateVertexer()
598{
599// create the vertexer
600
601 fITSVertexer = NULL;
602 AliRun* aliRun = fRunLoader->GetAliRun();
603 if (aliRun->GetDetector("ITS")) {
604 fITSVertexer = aliRun->GetDetector("ITS")->CreateVertexer();
605 }
606 if (!fITSVertexer) {
607 Warning("CreateVertexer", "couldn't create a vertexer for ITS");
608 if (fStopOnError) return kFALSE;
609 }
610
611 return kTRUE;
612}
613
24f7a148 614//_____________________________________________________________________________
615Bool_t AliReconstruction::CreateTrackers()
616{
617// get the loaders and create the trackers
618
619 AliRun* aliRun = fRunLoader->GetAliRun();
620
621 fITSTracker = NULL;
622 fITSLoader = fRunLoader->GetLoader("ITSLoader");
623 if (!fITSLoader) {
624 Warning("CreateTrackers", "no ITS loader found");
625 if (fStopOnError) return kFALSE;
626 } else {
627 if (aliRun->GetDetector("ITS")) {
628 fITSTracker = aliRun->GetDetector("ITS")->CreateTracker();
629 }
630 if (!fITSTracker) {
631 Warning("CreateTrackers", "couldn't create a tracker for ITS");
632 if (fStopOnError) return kFALSE;
633 }
634 }
635
636 fTPCTracker = NULL;
637 fTPCLoader = fRunLoader->GetLoader("TPCLoader");
638 if (!fTPCLoader) {
639 Error("CreateTrackers", "no TPC loader found");
640 if (fStopOnError) return kFALSE;
641 } else {
642 if (aliRun->GetDetector("TPC")) {
643 fTPCTracker = aliRun->GetDetector("TPC")->CreateTracker();
644 }
645 if (!fTPCTracker) {
646 Error("CreateTrackers", "couldn't create a tracker for TPC");
647 if (fStopOnError) return kFALSE;
648 }
649 }
650
651 fTRDTracker = NULL;
652 fTRDLoader = fRunLoader->GetLoader("TRDLoader");
653 if (!fTRDLoader) {
654 Warning("CreateTrackers", "no TRD loader found");
655 if (fStopOnError) return kFALSE;
656 } else {
657 if (aliRun->GetDetector("TRD")) {
658 fTRDTracker = aliRun->GetDetector("TRD")->CreateTracker();
659 }
660 if (!fTRDTracker) {
661 Warning("CreateTrackers", "couldn't create a tracker for TRD");
662 if (fStopOnError) return kFALSE;
663 }
664 }
665
666 fTOFTracker = NULL;
667 fTOFLoader = fRunLoader->GetLoader("TOFLoader");
668 if (!fTOFLoader) {
669 Warning("CreateTrackers", "no TOF loader found");
670 if (fStopOnError) return kFALSE;
671 } else {
672 if (aliRun->GetDetector("TOF")) {
673 fTOFTracker = aliRun->GetDetector("TOF")->CreateTracker();
674 }
675 if (!fTOFTracker) {
676 Warning("CreateTrackers", "couldn't create a tracker for TOF");
677 if (fStopOnError) return kFALSE;
678 }
679 }
680
681 return kTRUE;
682}
683
e583c30d 684//_____________________________________________________________________________
685void AliReconstruction::CleanUp(TFile* file)
686{
687// delete trackers and the run loader and close and delete the file
688
2257f27e 689 delete fITSVertexer;
690 fITSVertexer = NULL;
e583c30d 691 delete fITSTracker;
692 fITSTracker = NULL;
693 delete fTPCTracker;
694 fTPCTracker = NULL;
695 delete fTRDTracker;
696 fTRDTracker = NULL;
697 delete fTOFTracker;
698 fTOFTracker = NULL;
699
700 delete fRunLoader;
701 fRunLoader = NULL;
702
703 if (file) {
704 file->Close();
705 delete file;
706 }
707}
24f7a148 708
709
710//_____________________________________________________________________________
711Bool_t AliReconstruction::ReadESD(AliESD*& esd, const char* recStep) const
712{
713// read the ESD event from a file
714
715 if (!esd) return kFALSE;
716 char fileName[256];
717 sprintf(fileName, "ESD_%d.%d_%s.root",
718 esd->GetRunNumber(), esd->GetEventNumber(), recStep);
719 if (gSystem->AccessPathName(fileName)) return kFALSE;
720
721 Info("ReadESD", "reading ESD from file %s", fileName);
722 TFile* file = TFile::Open(fileName);
723 if (!file || !file->IsOpen()) {
724 Error("ReadESD", "opening %s failed", fileName);
725 delete file;
726 return kFALSE;
727 }
728
729 gROOT->cd();
730 delete esd;
731 esd = (AliESD*) file->Get("ESD");
732 file->Close();
733 delete file;
734 return kTRUE;
735}
736
737//_____________________________________________________________________________
738void AliReconstruction::WriteESD(AliESD* esd, const char* recStep) const
739{
740// write the ESD event to a file
741
742 if (!esd) return;
743 char fileName[256];
744 sprintf(fileName, "ESD_%d.%d_%s.root",
745 esd->GetRunNumber(), esd->GetEventNumber(), recStep);
746
747 Info("WriteESD", "writing ESD to file %s", fileName);
748 TFile* file = TFile::Open(fileName, "recreate");
749 if (!file || !file->IsOpen()) {
750 Error("WriteESD", "opening %s failed", fileName);
751 } else {
752 esd->Write("ESD");
753 file->Close();
754 }
755 delete file;
756}