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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// //
59697224 35// The local reconstruction can be switched on or off for individual //
36// detectors by //
596a855f 37// //
59697224 38// rec.SetRunLocalReconstruction("..."); //
596a855f 39// //
40// The argument is a (case sensitive) string with the names of the //
41// detectors separated by a space. The special string "ALL" selects all //
42// available detectors. This is the default. //
43// //
44// The tracking in ITS, TPC and TRD and the creation of ESD tracks can be //
45// switched off by //
46// //
47// rec.SetRunTracking(kFALSE); //
48// //
49// The filling of additional ESD information can be steered by //
50// //
51// rec.SetFillESD("..."); //
52// //
53// Again, the string specifies the list of detectors. The default is "ALL". //
54// //
55// The reconstruction requires digits as input. For the creation of digits //
56// have a look at the class AliSimulation. //
57// //
24f7a148 58// For debug purposes the method SetCheckPointLevel can be used. If the //
59// argument is greater than 0, files with ESD events will be written after //
60// selected steps of the reconstruction for each event: //
61// level 1: after tracking and after filling of ESD (final) //
62// level 2: in addition after each tracking step //
63// level 3: in addition after the filling of ESD for each detector //
64// If a final check point file exists for an event, this event will be //
65// skipped in the reconstruction. The tracking and the filling of ESD for //
66// a detector will be skipped as well, if the corresponding check point //
67// file exists. The ESD event will then be loaded from the file instead. //
68// //
596a855f 69///////////////////////////////////////////////////////////////////////////////
70
71
72#include "AliReconstruction.h"
73#include "AliRunLoader.h"
74#include "AliRun.h"
75#include "AliModule.h"
76#include "AliDetector.h"
59697224 77#include "AliReconstructor.h"
596a855f 78#include "AliTracker.h"
79#include "AliESD.h"
2257f27e 80#include "AliESDVertex.h"
81#include "AliVertexer.h"
596a855f 82#include "AliHeader.h"
83#include "AliGenEventHeader.h"
84#include "AliESDpid.h"
a866ac60 85#include "AliMagF.h"
596a855f 86#include <TArrayF.h>
24f7a148 87#include <TSystem.h>
88#include <TROOT.h>
59697224 89#include <TPluginManager.h>
596a855f 90
91
92ClassImp(AliReconstruction)
93
94
95//_____________________________________________________________________________
e583c30d 96AliReconstruction::AliReconstruction(const char* gAliceFilename,
97 const char* name, const char* title) :
98 TNamed(name, title),
99
59697224 100 fRunLocalReconstruction("ALL"),
2257f27e 101 fRunVertexFinder(kTRUE),
e583c30d 102 fRunTracking(kTRUE),
103 fFillESD("ALL"),
104 fGAliceFileName(gAliceFilename),
105 fStopOnError(kFALSE),
24f7a148 106 fCheckPointLevel(0),
e583c30d 107
108 fRunLoader(NULL),
109 fITSLoader(NULL),
2257f27e 110 fITSVertexer(NULL),
e583c30d 111 fITSTracker(NULL),
112 fTPCLoader(NULL),
113 fTPCTracker(NULL),
114 fTRDLoader(NULL),
115 fTRDTracker(NULL),
116 fTOFLoader(NULL),
117 fTOFTracker(NULL)
596a855f 118{
119// create reconstruction object with default parameters
120
596a855f 121}
122
123//_____________________________________________________________________________
124AliReconstruction::AliReconstruction(const AliReconstruction& rec) :
e583c30d 125 TNamed(rec),
126
59697224 127 fRunLocalReconstruction(rec.fRunLocalReconstruction),
2257f27e 128 fRunVertexFinder(rec.fRunVertexFinder),
e583c30d 129 fRunTracking(rec.fRunTracking),
130 fFillESD(rec.fFillESD),
131 fGAliceFileName(rec.fGAliceFileName),
132 fStopOnError(rec.fStopOnError),
24f7a148 133 fCheckPointLevel(0),
e583c30d 134
135 fRunLoader(NULL),
136 fITSLoader(NULL),
2257f27e 137 fITSVertexer(NULL),
e583c30d 138 fITSTracker(NULL),
139 fTPCLoader(NULL),
140 fTPCTracker(NULL),
141 fTRDLoader(NULL),
142 fTRDTracker(NULL),
143 fTOFLoader(NULL),
144 fTOFTracker(NULL)
596a855f 145{
146// copy constructor
147
596a855f 148}
149
150//_____________________________________________________________________________
151AliReconstruction& AliReconstruction::operator = (const AliReconstruction& rec)
152{
153// assignment operator
154
155 this->~AliReconstruction();
156 new(this) AliReconstruction(rec);
157 return *this;
158}
159
160//_____________________________________________________________________________
161AliReconstruction::~AliReconstruction()
162{
163// clean up
164
e583c30d 165 CleanUp();
596a855f 166}
167
168
169//_____________________________________________________________________________
170void AliReconstruction::SetGAliceFile(const char* fileName)
171{
172// set the name of the galice file
173
174 fGAliceFileName = fileName;
175}
176
177
178//_____________________________________________________________________________
179Bool_t AliReconstruction::Run()
180{
181// run the reconstruction
182
183 // open the run loader
596a855f 184 fRunLoader = AliRunLoader::Open(fGAliceFileName.Data());
185 if (!fRunLoader) {
186 Error("Run", "no run loader found in file %s",
187 fGAliceFileName.Data());
e583c30d 188 CleanUp();
596a855f 189 return kFALSE;
190 }
191 fRunLoader->LoadgAlice();
e583c30d 192 AliRun* aliRun = fRunLoader->GetAliRun();
193 if (!aliRun) {
596a855f 194 Error("Run", "no gAlice object found in file %s",
195 fGAliceFileName.Data());
e583c30d 196 CleanUp();
596a855f 197 return kFALSE;
198 }
e583c30d 199 gAlice = aliRun;
596a855f 200
59697224 201 // load the reconstructor objects
202 TPluginManager* pluginManager = gROOT->GetPluginManager();
203 if (!pluginManager->FindHandler("AliReconstructor", "TPC")) {
204 pluginManager->AddHandler("AliReconstructor", "TPC",
205 "AliTPCReconstructor", "TPC",
206 "AliTPCReconstructor()");
207 }
208 TObjArray* detArray = fRunLoader->GetAliRun()->Detectors();
209 for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) {
210 AliModule* det = (AliModule*) detArray->At(iDet);
211 if (!det || !det->IsActive()) continue;
212 TPluginHandler* pluginHandler =
213 pluginManager->FindHandler("AliReconstructor", det->GetName());
214 if (!pluginHandler) continue;
215 if (pluginHandler->LoadPlugin() != 0) continue;
216 AliReconstructor* reconstructor =
217 (AliReconstructor*) pluginHandler->ExecPlugin(0);
218 if (reconstructor) fReconstructors.Add(reconstructor);
219 }
220
596a855f 221 // local reconstruction
59697224 222 if (!fRunLocalReconstruction.IsNull()) {
223 if (!RunLocalReconstruction(fRunLocalReconstruction)) {
e583c30d 224 if (fStopOnError) {CleanUp(); return kFALSE;}
596a855f 225 }
226 }
2257f27e 227 if (!fRunVertexFinder && !fRunTracking && fFillESD.IsNull()) return kTRUE;
228
229 // get vertexer
230 if (fRunVertexFinder && !CreateVertexer()) {
231 if (fStopOnError) {
232 CleanUp();
233 return kFALSE;
234 }
235 }
596a855f 236
24f7a148 237 // get loaders and trackers
238 if (fRunTracking && !CreateTrackers()) {
239 if (fStopOnError) {
240 CleanUp();
241 return kFALSE;
242 }
596a855f 243 }
24f7a148 244
596a855f 245 // create the ESD output file
246 TFile* file = TFile::Open("AliESDs.root", "RECREATE");
247 if (!file->IsOpen()) {
248 Error("Run", "opening AliESDs.root failed");
e583c30d 249 if (fStopOnError) {CleanUp(file); return kFALSE;}
596a855f 250 }
251
252 // loop over events
253 for (Int_t iEvent = 0; iEvent < fRunLoader->GetNumberOfEvents(); iEvent++) {
254 Info("Run", "processing event %d", iEvent);
596a855f 255 fRunLoader->GetEvent(iEvent);
24f7a148 256
257 char fileName[256];
258 sprintf(fileName, "ESD_%d.%d_final.root",
259 aliRun->GetRunNumber(), aliRun->GetEvNumber());
260 if (!gSystem->AccessPathName(fileName)) continue;
261
262 AliESD* esd = new AliESD;
e583c30d 263 esd->SetRunNumber(aliRun->GetRunNumber());
264 esd->SetEventNumber(aliRun->GetEvNumber());
265 esd->SetMagneticField(aliRun->Field()->SolenoidField());
596a855f 266
2257f27e 267 // vertex finder
268 if (fRunVertexFinder) {
269 if (!ReadESD(esd, "vertex")) {
270 if (!RunVertexFinder(esd)) {
271 if (fStopOnError) {CleanUp(file); return kFALSE;}
272 }
273 if (fCheckPointLevel > 0) WriteESD(esd, "vertex");
274 }
275 }
276
596a855f 277 // barrel tracking
278 if (fRunTracking) {
24f7a148 279 if (!ReadESD(esd, "tracking")) {
280 if (!RunTracking(esd)) {
281 if (fStopOnError) {CleanUp(file); return kFALSE;}
282 }
283 if (fCheckPointLevel > 0) WriteESD(esd, "tracking");
596a855f 284 }
285 }
286
287 // fill ESD
288 if (!fFillESD.IsNull()) {
289 if (!FillESD(esd, fFillESD)) {
e583c30d 290 if (fStopOnError) {CleanUp(file); return kFALSE;}
596a855f 291 }
292 }
293
294 // combined PID
295 AliESDpid::MakePID(esd);
24f7a148 296 if (fCheckPointLevel > 1) WriteESD(esd, "PID");
596a855f 297
298 // write ESD
299 char name[100];
300 sprintf(name, "ESD%d", iEvent);
301 file->cd();
302 if (!esd->Write(name)) {
303 Error("Run", "writing ESD failed");
e583c30d 304 if (fStopOnError) {CleanUp(file); return kFALSE;}
596a855f 305 }
24f7a148 306 file->Flush();
307
308 if (fCheckPointLevel > 0) WriteESD(esd, "final");
d9b8978b 309 delete esd;
596a855f 310 }
311
e583c30d 312 CleanUp(file);
596a855f 313
314 return kTRUE;
315}
316
317
318//_____________________________________________________________________________
59697224 319Bool_t AliReconstruction::RunLocalReconstruction(const TString& detectors)
596a855f 320{
59697224 321// run the local reconstruction
596a855f 322
030b532d 323 TStopwatch stopwatch;
324 stopwatch.Start();
325
596a855f 326 TString detStr = detectors;
e583c30d 327 TObjArray* detArray = fRunLoader->GetAliRun()->Detectors();
596a855f 328 for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) {
329 AliModule* det = (AliModule*) detArray->At(iDet);
330 if (!det || !det->IsActive()) continue;
331 if (IsSelected(det->GetName(), detStr)) {
332 Info("RunReconstruction", "running reconstruction for %s",
333 det->GetName());
030b532d 334 TStopwatch stopwatchDet;
335 stopwatchDet.Start();
59697224 336 AliReconstructor* reconstructor = (AliReconstructor*)
337 fReconstructors.FindObject("Ali" + TString(det->GetName()) +
338 "Reconstructor");
339 if (reconstructor) {
340 reconstructor->Reconstruct(fRunLoader);
341 } else {
342 det->Reconstruct();
343 }
030b532d 344 Info("RunReconstruction", "execution time for %s:", det->GetName());
345 stopwatchDet.Print();
596a855f 346 }
347 }
348
349 if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) {
350 Error("RunReconstruction", "the following detectors were not found: %s",
351 detStr.Data());
352 if (fStopOnError) return kFALSE;
353 }
354
030b532d 355 Info("RunReconstruction", "execution time:");
356 stopwatch.Print();
357
596a855f 358 return kTRUE;
359}
360
361//_____________________________________________________________________________
2257f27e 362Bool_t AliReconstruction::RunVertexFinder(AliESD*& esd)
596a855f 363{
364// run the barrel tracking
365
030b532d 366 TStopwatch stopwatch;
367 stopwatch.Start();
368
2257f27e 369 AliESDVertex* vertex = NULL;
370 Double_t vtxPos[3] = {0, 0, 0};
371 Double_t vtxErr[3] = {0.07, 0.07, 0.1};
372 TArrayF mcVertex(3);
373 fRunLoader->GetHeader()->GenEventHeader()->PrimaryVertex(mcVertex);
374 for (Int_t i = 0; i < 3; i++) vtxPos[i] = mcVertex[i];
375
376 if (fITSVertexer) {
377 Info("RunVertexFinder", "running the ITS vertex finder");
378 fITSVertexer->SetDebug(1);
379 vertex = fITSVertexer->FindVertexForCurrentEvent(fRunLoader->GetEventNumber());
380 if(!vertex){
381 Warning("RunVertexFinder","Vertex not found \n");
c710f220 382 vertex = new AliESDVertex();
2257f27e 383 }
384 else {
385 vertex->SetTruePos(vtxPos); // store also the vertex from MC
386 }
387
388 } else {
389 Info("RunVertexFinder", "getting the primary vertex from MC");
390 vertex = new AliESDVertex(vtxPos, vtxErr);
391 }
392
393 if (vertex) {
394 vertex->GetXYZ(vtxPos);
395 vertex->GetSigmaXYZ(vtxErr);
396 } else {
397 Warning("RunVertexFinder", "no vertex reconstructed");
398 vertex = new AliESDVertex(vtxPos, vtxErr);
399 }
400 esd->SetVertex(vertex);
24f7a148 401 if (fITSTracker) fITSTracker->SetVertex(vtxPos, vtxErr);
402 if (fTPCTracker) fTPCTracker->SetVertex(vtxPos, vtxErr);
403 if (fTRDTracker) fTRDTracker->SetVertex(vtxPos, vtxErr);
2257f27e 404 delete vertex;
405
406 Info("RunVertexFinder", "execution time:");
407 stopwatch.Print();
408
409 return kTRUE;
410}
411
412//_____________________________________________________________________________
413Bool_t AliReconstruction::RunTracking(AliESD*& esd)
414{
415// run the barrel tracking
416
417 TStopwatch stopwatch;
418 stopwatch.Start();
24f7a148 419
420 if (!fTPCTracker) {
421 Error("RunTracking", "no TPC tracker");
422 return kFALSE;
423 }
596a855f 424
85555ca8 425 // TPC tracking
426 Info("RunTracking", "TPC tracking");
596a855f 427 fTPCLoader->LoadRecPoints("read");
428 TTree* tpcTree = fTPCLoader->TreeR();
429 if (!tpcTree) {
430 Error("RunTracking", "Can't get the TPC cluster tree");
431 return kFALSE;
24f7a148 432 }
596a855f 433 fTPCTracker->LoadClusters(tpcTree);
434 if (fTPCTracker->Clusters2Tracks(esd) != 0) {
85555ca8 435 Error("RunTracking", "TPC Clusters2Tracks failed");
596a855f 436 return kFALSE;
437 }
24f7a148 438 if (fCheckPointLevel > 1) WriteESD(esd, "TPC.tracking");
439
440 if (!fITSTracker) {
441 Warning("RunTracking", "no ITS tracker");
442 } else {
443
444 fRunLoader->GetAliRun()->GetDetector("TPC")->FillESD(esd); // preliminary
445 AliESDpid::MakePID(esd); // PID for the ITS tracker
446
447 // ITS tracking
448 Info("RunTracking", "ITS tracking");
449 fITSLoader->LoadRecPoints("read");
450 TTree* itsTree = fITSLoader->TreeR();
451 if (!itsTree) {
452 Error("RunTracking", "Can't get the ITS cluster tree");
453 return kFALSE;
454 }
455 fITSTracker->LoadClusters(itsTree);
456 if (fITSTracker->Clusters2Tracks(esd) != 0) {
457 Error("RunTracking", "ITS Clusters2Tracks failed");
458 return kFALSE;
459 }
460 if (fCheckPointLevel > 1) WriteESD(esd, "ITS.tracking");
596a855f 461
24f7a148 462 if (!fTRDTracker) {
463 Warning("RunTracking", "no TRD tracker");
464 } else {
465 // ITS back propagation
466 Info("RunTracking", "ITS back propagation");
467 if (fITSTracker->PropagateBack(esd) != 0) {
468 Error("RunTracking", "ITS backward propagation failed");
469 return kFALSE;
470 }
471 if (fCheckPointLevel > 1) WriteESD(esd, "ITS.back");
596a855f 472
24f7a148 473 // TPC back propagation
474 Info("RunTracking", "TPC back propagation");
475 if (fTPCTracker->PropagateBack(esd) != 0) {
476 Error("RunTracking", "TPC backward propagation failed");
477 return kFALSE;
478 }
479 if (fCheckPointLevel > 1) WriteESD(esd, "TPC.back");
480
481 // TRD back propagation
482 Info("RunTracking", "TRD back propagation");
483 fTRDLoader->LoadRecPoints("read");
484 TTree* trdTree = fTRDLoader->TreeR();
485 if (!trdTree) {
486 Error("RunTracking", "Can't get the TRD cluster tree");
487 return kFALSE;
488 }
489 fTRDTracker->LoadClusters(trdTree);
490 if (fTRDTracker->PropagateBack(esd) != 0) {
491 Error("RunTracking", "TRD backward propagation failed");
492 return kFALSE;
493 }
494 if (fCheckPointLevel > 1) WriteESD(esd, "TRD.back");
495
496 if (!fTOFTracker) {
497 Warning("RunTracking", "no TOF tracker");
498 } else {
499 // TOF back propagation
500 Info("RunTracking", "TOF back propagation");
501 fTOFLoader->LoadDigits("read");
502 TTree* tofTree = fTOFLoader->TreeD();
503 if (!tofTree) {
504 Error("RunTracking", "Can't get the TOF digits tree");
505 return kFALSE;
506 }
507 fTOFTracker->LoadClusters(tofTree);
508 if (fTOFTracker->PropagateBack(esd) != 0) {
509 Error("RunTracking", "TOF backward propagation failed");
510 return kFALSE;
511 }
512 if (fCheckPointLevel > 1) WriteESD(esd, "TOF.back");
513 fTOFTracker->UnloadClusters();
514 fTOFLoader->UnloadDigits();
515 }
596a855f 516
24f7a148 517 // TRD inward refit
518 Info("RunTracking", "TRD inward refit");
519 if (fTRDTracker->RefitInward(esd) != 0) {
520 Error("RunTracking", "TRD inward refit failed");
521 return kFALSE;
522 }
523 if (fCheckPointLevel > 1) WriteESD(esd, "TRD.refit");
524 fTRDTracker->UnloadClusters();
525 fTRDLoader->UnloadRecPoints();
526
527 // TPC inward refit
528 Info("RunTracking", "TPC inward refit");
529 if (fTPCTracker->RefitInward(esd) != 0) {
530 Error("RunTracking", "TPC inward refit failed");
531 return kFALSE;
532 }
533 if (fCheckPointLevel > 1) WriteESD(esd, "TPC.refit");
534
535 // ITS inward refit
536 Info("RunTracking", "ITS inward refit");
537 if (fITSTracker->RefitInward(esd) != 0) {
538 Error("RunTracking", "ITS inward refit failed");
539 return kFALSE;
540 }
541 if (fCheckPointLevel > 1) WriteESD(esd, "ITS.refit");
596a855f 542
24f7a148 543 } // if TRD tracker
544 fITSTracker->UnloadClusters();
545 fITSLoader->UnloadRecPoints();
596a855f 546
24f7a148 547 } // if ITS tracker
596a855f 548 fTPCTracker->UnloadClusters();
549 fTPCLoader->UnloadRecPoints();
596a855f 550
030b532d 551 Info("RunTracking", "execution time:");
552 stopwatch.Print();
553
596a855f 554 return kTRUE;
555}
556
557//_____________________________________________________________________________
24f7a148 558Bool_t AliReconstruction::FillESD(AliESD*& esd, const TString& detectors)
596a855f 559{
560// fill the event summary data
561
030b532d 562 TStopwatch stopwatch;
563 stopwatch.Start();
564
596a855f 565 TString detStr = detectors;
e583c30d 566 TObjArray* detArray = fRunLoader->GetAliRun()->Detectors();
596a855f 567 for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) {
568 AliModule* det = (AliModule*) detArray->At(iDet);
569 if (!det || !det->IsActive()) continue;
570 if (IsSelected(det->GetName(), detStr)) {
24f7a148 571 if (!ReadESD(esd, det->GetName())) {
572 Info("FillESD", "filling ESD for %s",
573 det->GetName());
59697224 574 AliReconstructor* reconstructor = (AliReconstructor*)
575 fReconstructors.FindObject("Ali" + TString(det->GetName()) +
576 "Reconstructor");
577 if (reconstructor) {
578 reconstructor->FillESD(fRunLoader, esd);
579 } else {
580 det->FillESD(esd);
581 }
24f7a148 582 if (fCheckPointLevel > 2) WriteESD(esd, det->GetName());
583 }
596a855f 584 }
585 }
586
587 if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) {
588 Error("FillESD", "the following detectors were not found: %s",
589 detStr.Data());
590 if (fStopOnError) return kFALSE;
591 }
592
030b532d 593 Info("FillESD", "execution time:");
594 stopwatch.Print();
595
596a855f 596 return kTRUE;
597}
598
599
600//_____________________________________________________________________________
601Bool_t AliReconstruction::IsSelected(TString detName, TString& detectors) const
602{
603// check whether detName is contained in detectors
604// if yes, it is removed from detectors
605
606 // check if all detectors are selected
607 if ((detectors.CompareTo("ALL") == 0) ||
608 detectors.BeginsWith("ALL ") ||
609 detectors.EndsWith(" ALL") ||
610 detectors.Contains(" ALL ")) {
611 detectors = "ALL";
612 return kTRUE;
613 }
614
615 // search for the given detector
616 Bool_t result = kFALSE;
617 if ((detectors.CompareTo(detName) == 0) ||
618 detectors.BeginsWith(detName+" ") ||
619 detectors.EndsWith(" "+detName) ||
620 detectors.Contains(" "+detName+" ")) {
621 detectors.ReplaceAll(detName, "");
622 result = kTRUE;
623 }
624
625 // clean up the detectors string
626 while (detectors.Contains(" ")) detectors.ReplaceAll(" ", " ");
627 while (detectors.BeginsWith(" ")) detectors.Remove(0, 1);
628 while (detectors.EndsWith(" ")) detectors.Remove(detectors.Length()-1, 1);
629
630 return result;
631}
e583c30d 632
2257f27e 633//_____________________________________________________________________________
634Bool_t AliReconstruction::CreateVertexer()
635{
636// create the vertexer
637
638 fITSVertexer = NULL;
59697224 639 AliReconstructor* itsReconstructor = (AliReconstructor*)
640 fReconstructors.FindObject("AliITSReconstructor");
641 if (itsReconstructor) {
642 fITSVertexer = itsReconstructor->CreateVertexer(fRunLoader);
643 } else {
644 AliRun* aliRun = fRunLoader->GetAliRun();
645 if (aliRun->GetDetector("ITS")) {
646 fITSVertexer = aliRun->GetDetector("ITS")->CreateVertexer();
647 }
2257f27e 648 }
649 if (!fITSVertexer) {
650 Warning("CreateVertexer", "couldn't create a vertexer for ITS");
651 if (fStopOnError) return kFALSE;
652 }
653
654 return kTRUE;
655}
656
24f7a148 657//_____________________________________________________________________________
658Bool_t AliReconstruction::CreateTrackers()
659{
660// get the loaders and create the trackers
661
662 AliRun* aliRun = fRunLoader->GetAliRun();
663
664 fITSTracker = NULL;
665 fITSLoader = fRunLoader->GetLoader("ITSLoader");
666 if (!fITSLoader) {
667 Warning("CreateTrackers", "no ITS loader found");
668 if (fStopOnError) return kFALSE;
669 } else {
59697224 670 AliReconstructor* itsReconstructor = (AliReconstructor*)
671 fReconstructors.FindObject("AliITSReconstructor");
672 if (itsReconstructor) {
673 fITSTracker = itsReconstructor->CreateTracker(fRunLoader);
674 } else {
675 if (aliRun->GetDetector("ITS")) {
676 fITSTracker = aliRun->GetDetector("ITS")->CreateTracker();
677 }
24f7a148 678 }
679 if (!fITSTracker) {
680 Warning("CreateTrackers", "couldn't create a tracker for ITS");
681 if (fStopOnError) return kFALSE;
682 }
683 }
684
685 fTPCTracker = NULL;
686 fTPCLoader = fRunLoader->GetLoader("TPCLoader");
687 if (!fTPCLoader) {
688 Error("CreateTrackers", "no TPC loader found");
689 if (fStopOnError) return kFALSE;
690 } else {
59697224 691 AliReconstructor* tpcReconstructor = (AliReconstructor*)
692 fReconstructors.FindObject("AliTPCReconstructor");
693 if (tpcReconstructor) {
694 fTPCTracker = tpcReconstructor->CreateTracker(fRunLoader);
695 } else {
696 if (aliRun->GetDetector("TPC")) {
697 fTPCTracker = aliRun->GetDetector("TPC")->CreateTracker();
698 }
24f7a148 699 }
700 if (!fTPCTracker) {
701 Error("CreateTrackers", "couldn't create a tracker for TPC");
702 if (fStopOnError) return kFALSE;
703 }
704 }
705
706 fTRDTracker = NULL;
707 fTRDLoader = fRunLoader->GetLoader("TRDLoader");
708 if (!fTRDLoader) {
709 Warning("CreateTrackers", "no TRD loader found");
710 if (fStopOnError) return kFALSE;
711 } else {
59697224 712 AliReconstructor* trdReconstructor = (AliReconstructor*)
713 fReconstructors.FindObject("AliTRDReconstructor");
714 if (trdReconstructor) {
715 fTRDTracker = trdReconstructor->CreateTracker(fRunLoader);
716 } else {
717 if (aliRun->GetDetector("TRD")) {
718 fTRDTracker = aliRun->GetDetector("TRD")->CreateTracker();
719 }
24f7a148 720 }
721 if (!fTRDTracker) {
722 Warning("CreateTrackers", "couldn't create a tracker for TRD");
723 if (fStopOnError) return kFALSE;
724 }
725 }
726
727 fTOFTracker = NULL;
728 fTOFLoader = fRunLoader->GetLoader("TOFLoader");
729 if (!fTOFLoader) {
730 Warning("CreateTrackers", "no TOF loader found");
731 if (fStopOnError) return kFALSE;
732 } else {
59697224 733 AliReconstructor* tofReconstructor = (AliReconstructor*)
734 fReconstructors.FindObject("AliTOFReconstructor");
735 if (tofReconstructor) {
736 fTOFTracker = tofReconstructor->CreateTracker(fRunLoader);
737 } else {
738 if (aliRun->GetDetector("TOF")) {
739 fTOFTracker = aliRun->GetDetector("TOF")->CreateTracker();
740 }
24f7a148 741 }
742 if (!fTOFTracker) {
743 Warning("CreateTrackers", "couldn't create a tracker for TOF");
744 if (fStopOnError) return kFALSE;
745 }
746 }
747
748 return kTRUE;
749}
750
e583c30d 751//_____________________________________________________________________________
752void AliReconstruction::CleanUp(TFile* file)
753{
754// delete trackers and the run loader and close and delete the file
755
59697224 756 fReconstructors.Delete();
757
2257f27e 758 delete fITSVertexer;
759 fITSVertexer = NULL;
e583c30d 760 delete fITSTracker;
761 fITSTracker = NULL;
762 delete fTPCTracker;
763 fTPCTracker = NULL;
764 delete fTRDTracker;
765 fTRDTracker = NULL;
766 delete fTOFTracker;
767 fTOFTracker = NULL;
768
769 delete fRunLoader;
770 fRunLoader = NULL;
771
772 if (file) {
773 file->Close();
774 delete file;
775 }
776}
24f7a148 777
778
779//_____________________________________________________________________________
780Bool_t AliReconstruction::ReadESD(AliESD*& esd, const char* recStep) const
781{
782// read the ESD event from a file
783
784 if (!esd) return kFALSE;
785 char fileName[256];
786 sprintf(fileName, "ESD_%d.%d_%s.root",
787 esd->GetRunNumber(), esd->GetEventNumber(), recStep);
788 if (gSystem->AccessPathName(fileName)) return kFALSE;
789
790 Info("ReadESD", "reading ESD from file %s", fileName);
791 TFile* file = TFile::Open(fileName);
792 if (!file || !file->IsOpen()) {
793 Error("ReadESD", "opening %s failed", fileName);
794 delete file;
795 return kFALSE;
796 }
797
798 gROOT->cd();
799 delete esd;
800 esd = (AliESD*) file->Get("ESD");
801 file->Close();
802 delete file;
803 return kTRUE;
804}
805
806//_____________________________________________________________________________
807void AliReconstruction::WriteESD(AliESD* esd, const char* recStep) const
808{
809// write the ESD event to a file
810
811 if (!esd) return;
812 char fileName[256];
813 sprintf(fileName, "ESD_%d.%d_%s.root",
814 esd->GetRunNumber(), esd->GetEventNumber(), recStep);
815
816 Info("WriteESD", "writing ESD to file %s", fileName);
817 TFile* file = TFile::Open(fileName, "recreate");
818 if (!file || !file->IsOpen()) {
819 Error("WriteESD", "opening %s failed", fileName);
820 } else {
821 esd->Write("ESD");
822 file->Close();
823 }
824 delete file;
825}