[u/mrichter/AliRoot.git] / STEER / AliReconstruction.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
// class for running the reconstruction                                      //
//                                                                           //
// Clusters and tracks are created for all detectors and all events by       //
// typing:                                                                   //
//                                                                           //
//   AliReconstruction rec;                                                  //
//   rec.Run();                                                              //
//                                                                           //
// The Run method returns kTRUE in case of successful execution.             //
// The name of the galice file can be changed from the default               //
// "galice.root" by                                                          //
//                                                                           //
//   rec.SetGAliceFile("...");                                               //
//                                                                           //
// The reconstruction can be switched on or off for individual detectors by  //
//                                                                           //
//   rec.SetRunReconstruction("...");                                        //
//                                                                           //
// The argument is a (case sensitive) string with the names of the           //
// detectors separated by a space. The special string "ALL" selects all      //
// available detectors. This is the default.                                 //
//                                                                           //
// The tracking in ITS, TPC and TRD and the creation of ESD tracks can be    //
// switched off by                                                           //
//                                                                           //
//   rec.SetRunTracking(kFALSE);                                             //
//                                                                           //
// The filling of additional ESD information can be steered by               //
//                                                                           //
//   rec.SetFillESD("...");                                                  //
//                                                                           //
// Again, the string specifies the list of detectors. The default is "ALL".  //
//                                                                           //
// The reconstruction requires digits as input. For the creation of digits   //
// have a look at the class AliSimulation.                                   //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////


#include "AliReconstruction.h"
#include "AliRunLoader.h"
#include "AliRun.h"
#include "AliModule.h"
#include "AliDetector.h"
#include "AliTracker.h"
#include "AliESD.h"
#include "AliHeader.h"
#include "AliGenEventHeader.h"
#include "AliESDpid.h"
#include <TArrayF.h>


ClassImp(AliReconstruction)


//_____________________________________________________________________________
AliReconstruction::AliReconstruction(const char* name, const char* title) :
  TNamed(name, title)
{
// create reconstruction object with default parameters

  Init();
}

//_____________________________________________________________________________
AliReconstruction::AliReconstruction(const AliReconstruction& rec) :
  TNamed(rec)
{
// copy constructor

  fRunReconstruction = rec.fRunReconstruction;
  fRunTracking = rec.fRunTracking;
  fStopOnError = rec.fStopOnError;

  fGAliceFileName = rec.fGAliceFileName;

  fRunLoader = NULL;
}

//_____________________________________________________________________________
AliReconstruction& AliReconstruction::operator = (const AliReconstruction& rec)
{
// assignment operator

  this->~AliReconstruction();
  new(this) AliReconstruction(rec);
  return *this;
}

//_____________________________________________________________________________
AliReconstruction::~AliReconstruction()
{
// clean up

}

//_____________________________________________________________________________
void AliReconstruction::Init()
{
// set default parameters

  fRunReconstruction = "ALL";
  fRunTracking = kTRUE;
  fFillESD = "ALL";
  fStopOnError = kFALSE;

  fGAliceFileName = "galice.root";

  fRunLoader = NULL;
}


//_____________________________________________________________________________
void AliReconstruction::SetGAliceFile(const char* fileName)
{
// set the name of the galice file

  fGAliceFileName = fileName;
}


//_____________________________________________________________________________
Bool_t AliReconstruction::Run()
{
// run the reconstruction

  // open the run loader
  if (fRunLoader) delete fRunLoader;
  fRunLoader = AliRunLoader::Open(fGAliceFileName.Data());
  if (!fRunLoader) {
    Error("Run", "no run loader found in file %s", 
	  fGAliceFileName.Data());
    return kFALSE;
  }
  fRunLoader->LoadgAlice();
  gAlice = fRunLoader->GetAliRun();
  if (!gAlice) {
    Error("Run", "no gAlice object found in file %s", 
	  fGAliceFileName.Data());
    return kFALSE;
  }

  // local reconstruction
  if (!fRunReconstruction.IsNull()) {
    if (!RunReconstruction(fRunReconstruction)) {
      if (fStopOnError) return kFALSE;
    }
  }
  if (!fRunTracking && fFillESD.IsNull()) return kTRUE;

  // get loaders and trackers
  fITSLoader = fRunLoader->GetLoader("ITSLoader");
  if (!fITSLoader) {
    Error("Run", "no ITS loader found");
    if (fStopOnError) return kFALSE;
  }
  fITSTracker = NULL;
  if (gAlice->GetDetector("ITS")) {
    fITSTracker = gAlice->GetDetector("ITS")->CreateTracker();
  }
  if (!fITSTracker) {
    Error("Run", "couldn't create a tracker for ITS");
    if (fStopOnError) return kFALSE;
  }

  fTPCLoader = fRunLoader->GetLoader("TPCLoader");
  if (!fTPCLoader) {
    Error("Run", "no TPC loader found");
    if (fStopOnError) return kFALSE;
  }
  fTPCTracker = NULL;
  if (gAlice->GetDetector("TPC")) {
    fTPCTracker = gAlice->GetDetector("TPC")->CreateTracker();
  }
  if (!fTPCTracker) {
    Error("Run", "couldn't create a tracker for TPC");
    if (fStopOnError) return kFALSE;
  }

  fTRDLoader = fRunLoader->GetLoader("TRDLoader");
  if (!fTRDLoader) {
    Error("Run", "no TRD loader found");
    if (fStopOnError) return kFALSE;
  }
  fTRDTracker = NULL;
  if (gAlice->GetDetector("TRD")) {
    fTRDTracker = gAlice->GetDetector("TRD")->CreateTracker();
  }
  if (!fTRDTracker) {
    Error("Run", "couldn't create a tracker for TRD");
    if (fStopOnError) return kFALSE;
  }

  fTOFLoader = fRunLoader->GetLoader("TOFLoader");
  if (!fTOFLoader) {
    Error("Run", "no TOF loader found");
    if (fStopOnError) return kFALSE;
  }
  fTOFTracker = NULL;
  if (gAlice->GetDetector("TOF")) {
    fTOFTracker = gAlice->GetDetector("TOF")->CreateTracker();
  }
  if (!fTOFTracker) {
    Error("Run", "couldn't create a tracker for TOF");
    if (fStopOnError) return kFALSE;
  }

  // create the ESD output file
  TFile* file = TFile::Open("AliESDs.root", "RECREATE");
  if (!file->IsOpen()) {
    Error("Run", "opening AliESDs.root failed");
    if (fStopOnError) return kFALSE;    
  }

  // loop over events
  for (Int_t iEvent = 0; iEvent < fRunLoader->GetNumberOfEvents(); iEvent++) {
    Info("Run", "processing event %d", iEvent);
    AliESD* esd = new AliESD;
    fRunLoader->GetEvent(iEvent);
    esd->SetRunNumber(gAlice->GetRunNumber());
    esd->SetEventNumber(gAlice->GetEvNumber());

    // barrel tracking
    if (fRunTracking) {
      if (!RunTracking(esd)) {
	if (fStopOnError) return kFALSE;
      }
    }

    // fill ESD
    if (!fFillESD.IsNull()) {
      if (!FillESD(esd, fFillESD)) {
	if (fStopOnError) return kFALSE;
      }
    }

    // combined PID
    AliESDpid::MakePID(esd);

    // write ESD
    char name[100]; 
    sprintf(name, "ESD%d", iEvent);
    file->cd();
    if (!esd->Write(name)) {
      Error("Run", "writing ESD failed");
      if (fStopOnError) return kFALSE;
    }
  }

  file->Close();

  return kTRUE;
}


//_____________________________________________________________________________
Bool_t AliReconstruction::RunReconstruction(const TString& detectors)
{
// run the reconstruction

  TStopwatch stopwatch;
  stopwatch.Start();

  TString detStr = detectors;
  TObjArray* detArray = gAlice->Detectors();
  for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) {
    AliModule* det = (AliModule*) detArray->At(iDet);
    if (!det || !det->IsActive()) continue;
    if (IsSelected(det->GetName(), detStr)) {
      Info("RunReconstruction", "running reconstruction for %s", 
	   det->GetName());
      TStopwatch stopwatchDet;
      stopwatchDet.Start();
      det->Reconstruct();
      Info("RunReconstruction", "execution time for %s:", det->GetName());
      stopwatchDet.Print();
    }
  }

  if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) {
    Error("RunReconstruction", "the following detectors were not found: %s", 
	  detStr.Data());
    if (fStopOnError) return kFALSE;
  }

  Info("RunReconstruction", "execution time:");
  stopwatch.Print();

  return kTRUE;
}

//_____________________________________________________________________________
Bool_t AliReconstruction::RunTracking(AliESD* esd)
{
// run the barrel tracking

  TStopwatch stopwatch;
  stopwatch.Start();

  // get the primary vertex (from MC for the moment)
  TArrayF vertex(3);     
  fRunLoader->GetHeader()->GenEventHeader()->PrimaryVertex(vertex);
  Double_t vtxPos[3] = {vertex[0], vertex[1], vertex[2]};
  Double_t vtxCov[6] = {
    0.005,
    0.000, 0.005,
    0.000, 0.000, 0.010
  };
  Double_t vtxErr[3] = {vtxCov[0], vtxCov[2], vtxCov[5]}; // diag. elements
  esd->SetVertex(vtxPos, vtxCov);
  fITSTracker->SetVertex(vtxPos, vtxErr);
  fTPCTracker->SetVertex(vtxPos, vtxErr);
  fTRDTracker->SetVertex(vtxPos, vtxErr);

  // TPC tracking
  Info("RunTracking", "TPC tracking");
  fTPCLoader->LoadRecPoints("read");
  TTree* tpcTree = fTPCLoader->TreeR();
  if (!tpcTree) {
    Error("RunTracking", "Can't get the TPC cluster tree");
    return kFALSE;
  }     
  fTPCTracker->LoadClusters(tpcTree);
  if (fTPCTracker->Clusters2Tracks(esd) != 0) {
    Error("RunTracking", "TPC Clusters2Tracks failed");
    return kFALSE;
  }

  gAlice->GetDetector("TPC")->FillESD(esd); // preliminary PID
  AliESDpid::MakePID(esd);                  // for the ITS tracker

  // ITS tracking
  Info("RunTracking", "ITS tracking");
  fITSLoader->LoadRecPoints("read");
  TTree* itsTree = fITSLoader->TreeR();
  if (!itsTree) {
    Error("RunTracking", "Can't get the ITS cluster tree");
    return kFALSE;
  }     
  fITSTracker->LoadClusters(itsTree);
  if (fITSTracker->Clusters2Tracks(esd) != 0) {
    Error("RunTracking", "ITS Clusters2Tracks failed");
    return kFALSE;
  }

  // ITS back propagation
  Info("RunTracking", "ITS back propagation");
  if (fITSTracker->PropagateBack(esd) != 0) {
    Error("RunTracking", "ITS backward propagation failed");
    return kFALSE;
  }

  // TPC back propagation
  Info("RunTracking", "TPC back propagation");
  if (fTPCTracker->PropagateBack(esd) != 0) {
    Error("RunTracking", "TPC backward propagation failed");
    return kFALSE;
  }

  // TRD back propagation
  Info("RunTracking", "TRD back propagation");
  fTRDLoader->LoadRecPoints("read");
  TTree* trdTree = fTRDLoader->TreeR();
  if (!trdTree) {
    Error("RunTracking", "Can't get the TRD cluster tree");
    return kFALSE;
  }     
  fTRDTracker->LoadClusters(trdTree);
  if (fTRDTracker->PropagateBack(esd) != 0) {
    Error("RunTracking", "TRD backward propagation failed");
    return kFALSE;
  }

  // TOF back propagation
  Info("RunTracking", "TOF back propagation");
  fTOFLoader->LoadDigits("read");
  TTree* tofTree = fTOFLoader->TreeD();
  if (!tofTree) {
    Error("RunTracking", "Can't get the TOF digits tree");
    return kFALSE;
  }     
  fTOFTracker->LoadClusters(tofTree);
  if (fTOFTracker->PropagateBack(esd) != 0) {
    Error("RunTracking", "TOF backward propagation failed");
    return kFALSE;
  }
  fTOFTracker->UnloadClusters();
  fTOFLoader->UnloadDigits();

  // TRD inward refit
  Info("RunTracking", "TRD inward refit");
  if (fTRDTracker->RefitInward(esd) != 0) {
    Error("RunTracking", "TRD inward refit failed");
    return kFALSE;
  }
  fTRDTracker->UnloadClusters();
  fTRDLoader->UnloadRecPoints();
    
  // TPC inward refit
  Info("RunTracking", "TPC inward refit");
  if (fTPCTracker->RefitInward(esd) != 0) {
    Error("RunTracking", "TPC inward refit failed");
    return kFALSE;
  }
  fTPCTracker->UnloadClusters();
  fTPCLoader->UnloadRecPoints();
    
  // ITS inward refit
  Info("RunTracking", "ITS inward refit");
  if (fITSTracker->RefitInward(esd) != 0) {
    Error("RunTracking", "ITS inward refit failed");
    return kFALSE;
  }
  fITSTracker->UnloadClusters();
  fITSLoader->UnloadRecPoints();

  Info("RunTracking", "execution time:");
  stopwatch.Print();

  return kTRUE;
}

//_____________________________________________________________________________
Bool_t AliReconstruction::FillESD(AliESD* esd, const TString& detectors)
{
// fill the event summary data

  TStopwatch stopwatch;
  stopwatch.Start();

  TString detStr = detectors;
  TObjArray* detArray = gAlice->Detectors();
  for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) {
    AliModule* det = (AliModule*) detArray->At(iDet);
    if (!det || !det->IsActive()) continue;
    if (IsSelected(det->GetName(), detStr)) {
      Info("FillESD", "filling ESD for %s", 
	   det->GetName());
      det->FillESD(esd);
    }
  }

  if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) {
    Error("FillESD", "the following detectors were not found: %s", 
	  detStr.Data());
    if (fStopOnError) return kFALSE;
  }

  Info("FillESD", "execution time:");
  stopwatch.Print();

  return kTRUE;
}


//_____________________________________________________________________________
Bool_t AliReconstruction::IsSelected(TString detName, TString& detectors) const
{
// check whether detName is contained in detectors
// if yes, it is removed from detectors

  // check if all detectors are selected
  if ((detectors.CompareTo("ALL") == 0) ||
      detectors.BeginsWith("ALL ") ||
      detectors.EndsWith(" ALL") ||
      detectors.Contains(" ALL ")) {
    detectors = "ALL";
    return kTRUE;
  }

  // search for the given detector
  Bool_t result = kFALSE;
  if ((detectors.CompareTo(detName) == 0) ||
      detectors.BeginsWith(detName+" ") ||
      detectors.EndsWith(" "+detName) ||
      detectors.Contains(" "+detName+" ")) {
    detectors.ReplaceAll(detName, "");
    result = kTRUE;
  }

  // clean up the detectors string
  while (detectors.Contains("  ")) detectors.ReplaceAll("  ", " ");
  while (detectors.BeginsWith(" ")) detectors.Remove(0, 1);
  while (detectors.EndsWith(" ")) detectors.Remove(detectors.Length()-1, 1);

  return result;
}
Commit	Line	Data
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 //
	30	// "galice.root" by //
	31	// //
	32	// rec.SetGAliceFile("..."); //
	33	// //
	34	// The reconstruction can be switched on or off for individual detectors by //
	35	// //
	36	// rec.SetRunReconstruction("..."); //
	37	// //
	38	// The argument is a (case sensitive) string with the names of the //
	39	// detectors separated by a space. The special string "ALL" selects all //
	40	// available detectors. This is the default. //
	41	// //
	42	// The tracking in ITS, TPC and TRD and the creation of ESD tracks can be //
	43	// switched off by //
	44	// //
	45	// rec.SetRunTracking(kFALSE); //
	46	// //
	47	// The filling of additional ESD information can be steered by //
	48	// //
	49	// rec.SetFillESD("..."); //
	50	// //
	51	// Again, the string specifies the list of detectors. The default is "ALL". //
	52	// //
	53	// The reconstruction requires digits as input. For the creation of digits //
	54	// have a look at the class AliSimulation. //
	55	// //
	56	///////////////////////////////////////////////////////////////////////////////
	57
	58
	59	#include "AliReconstruction.h"
	60	#include "AliRunLoader.h"
	61	#include "AliRun.h"
	62	#include "AliModule.h"
	63	#include "AliDetector.h"
	64	#include "AliTracker.h"
65	#include "AliESD.h"
66	#include "AliHeader.h"
67	#include "AliGenEventHeader.h"
68	#include "AliESDpid.h"
69	#include <TArrayF.h>
70
71
72	ClassImp(AliReconstruction)
73
74
75	//_____________________________________________________________________________
76	AliReconstruction::AliReconstruction(const char* name, const char* title) :
77	TNamed(name, title)
78	{
79	// create reconstruction object with default parameters
80
81	Init();
82	}
83
84	//_____________________________________________________________________________
85	AliReconstruction::AliReconstruction(const AliReconstruction& rec) :
86	TNamed(rec)
87	{
88	// copy constructor
89
90	fRunReconstruction = rec.fRunReconstruction;
91	fRunTracking = rec.fRunTracking;
92	fStopOnError = rec.fStopOnError;
93
94	fGAliceFileName = rec.fGAliceFileName;
95
96	fRunLoader = NULL;
97	}
98
99	//_____________________________________________________________________________
100	AliReconstruction& AliReconstruction::operator = (const AliReconstruction& rec)
101	{
102	// assignment operator
103
104	this->~AliReconstruction();
105	new(this) AliReconstruction(rec);
106	return *this;
107	}
108
109	//_____________________________________________________________________________
110	AliReconstruction::~AliReconstruction()
111	{
112	// clean up
113
114	}
115
116	//_____________________________________________________________________________
117	void AliReconstruction::Init()
118	{
119	// set default parameters
120
121	fRunReconstruction = "ALL";
122	fRunTracking = kTRUE;
123	fFillESD = "ALL";
124	fStopOnError = kFALSE;
125
126	fGAliceFileName = "galice.root";
127
128	fRunLoader = NULL;
129	}
130
131
132	//_____________________________________________________________________________
133	void AliReconstruction::SetGAliceFile(const char* fileName)
134	{
135	// set the name of the galice file
136
137	fGAliceFileName = fileName;
138	}
139
140
141	//_____________________________________________________________________________
142	Bool_t AliReconstruction::Run()
143	{
144	// run the reconstruction
145
146	// open the run loader
147	if (fRunLoader) delete fRunLoader;
148	fRunLoader = AliRunLoader::Open(fGAliceFileName.Data());
149	if (!fRunLoader) {
150	Error("Run", "no run loader found in file %s",
151	fGAliceFileName.Data());
152	return kFALSE;
153	}
154	fRunLoader->LoadgAlice();
155	gAlice = fRunLoader->GetAliRun();
156	if (!gAlice) {
157	Error("Run", "no gAlice object found in file %s",
158	fGAliceFileName.Data());
159	return kFALSE;
160	}
161
162	// local reconstruction
163	if (!fRunReconstruction.IsNull()) {
164	if (!RunReconstruction(fRunReconstruction)) {
165	if (fStopOnError) return kFALSE;
166	}
167	}
168	if (!fRunTracking && fFillESD.IsNull()) return kTRUE;
169
170	// get loaders and trackers
171	fITSLoader = fRunLoader->GetLoader("ITSLoader");
172	if (!fITSLoader) {
173	Error("Run", "no ITS loader found");
174	if (fStopOnError) return kFALSE;
175	}
176	fITSTracker = NULL;
177	if (gAlice->GetDetector("ITS")) {
178	fITSTracker = gAlice->GetDetector("ITS")->CreateTracker();
179	}
180	if (!fITSTracker) {
181	Error("Run", "couldn't create a tracker for ITS");
182	if (fStopOnError) return kFALSE;
183	}
184
185	fTPCLoader = fRunLoader->GetLoader("TPCLoader");
186	if (!fTPCLoader) {
187	Error("Run", "no TPC loader found");
188	if (fStopOnError) return kFALSE;
189	}
190	fTPCTracker = NULL;
191	if (gAlice->GetDetector("TPC")) {
192	fTPCTracker = gAlice->GetDetector("TPC")->CreateTracker();
193	}
194	if (!fTPCTracker) {
195	Error("Run", "couldn't create a tracker for TPC");
196	if (fStopOnError) return kFALSE;
197	}
198
199	fTRDLoader = fRunLoader->GetLoader("TRDLoader");
200	if (!fTRDLoader) {
201	Error("Run", "no TRD loader found");
202	if (fStopOnError) return kFALSE;
203	}
204	fTRDTracker = NULL;
205	if (gAlice->GetDetector("TRD")) {
206	fTRDTracker = gAlice->GetDetector("TRD")->CreateTracker();
207	}
208	if (!fTRDTracker) {
209	Error("Run", "couldn't create a tracker for TRD");
210	if (fStopOnError) return kFALSE;
211	}
212
213	fTOFLoader = fRunLoader->GetLoader("TOFLoader");
214	if (!fTOFLoader) {
215	Error("Run", "no TOF loader found");
216	if (fStopOnError) return kFALSE;
217	}
218	fTOFTracker = NULL;
219	if (gAlice->GetDetector("TOF")) {
220	fTOFTracker = gAlice->GetDetector("TOF")->CreateTracker();
221	}
222	if (!fTOFTracker) {
223	Error("Run", "couldn't create a tracker for TOF");
224	if (fStopOnError) return kFALSE;
225	}
226
227	// create the ESD output file
228	TFile* file = TFile::Open("AliESDs.root", "RECREATE");
229	if (!file->IsOpen()) {
230	Error("Run", "opening AliESDs.root failed");
231	if (fStopOnError) return kFALSE;
232	}
233
234	// loop over events
235	for (Int_t iEvent = 0; iEvent < fRunLoader->GetNumberOfEvents(); iEvent++) {
236	Info("Run", "processing event %d", iEvent);
237	AliESD* esd = new AliESD;
238	fRunLoader->GetEvent(iEvent);
239	esd->SetRunNumber(gAlice->GetRunNumber());
240	esd->SetEventNumber(gAlice->GetEvNumber());
241
242	// barrel tracking
243	if (fRunTracking) {
244	if (!RunTracking(esd)) {
245	if (fStopOnError) return kFALSE;
246	}
247	}
248
249	// fill ESD
250	if (!fFillESD.IsNull()) {
251	if (!FillESD(esd, fFillESD)) {
252	if (fStopOnError) return kFALSE;
253	}
254	}
255
256	// combined PID
257	AliESDpid::MakePID(esd);
258
259	// write ESD
260	char name[100];
261	sprintf(name, "ESD%d", iEvent);
262	file->cd();
263	if (!esd->Write(name)) {
264	Error("Run", "writing ESD failed");
265	if (fStopOnError) return kFALSE;
266	}
267	}
268
269	file->Close();
270
271	return kTRUE;
272	}
273
274
275	//_____________________________________________________________________________
276	Bool_t AliReconstruction::RunReconstruction(const TString& detectors)
277	{
278	// run the reconstruction
279
030b532d	280	TStopwatch stopwatch;
	281	stopwatch.Start();
	282
596a855f	283	TString detStr = detectors;
	284	TObjArray* detArray = gAlice->Detectors();
	285	for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) {
	286	AliModule* det = (AliModule*) detArray->At(iDet);
	287	if (!det \|\| !det->IsActive()) continue;
	288	if (IsSelected(det->GetName(), detStr)) {
	289	Info("RunReconstruction", "running reconstruction for %s",
	290	det->GetName());
030b532d	291	TStopwatch stopwatchDet;
030b532d	292	stopwatchDet.Start();
596a855f	293	det->Reconstruct();
030b532d	294	Info("RunReconstruction", "execution time for %s:", det->GetName());
030b532d	295	stopwatchDet.Print();
596a855f	296	}
	297	}
	298
	299	if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) {
	300	Error("RunReconstruction", "the following detectors were not found: %s",
	301	detStr.Data());
	302	if (fStopOnError) return kFALSE;
	303	}
	304
030b532d	305	Info("RunReconstruction", "execution time:");
	306	stopwatch.Print();
	307
596a855f	308	return kTRUE;
	309	}
	310
	311	//_____________________________________________________________________________
	312	Bool_t AliReconstruction::RunTracking(AliESD* esd)
	313	{
	314	// run the barrel tracking
	315
030b532d	316	TStopwatch stopwatch;
	317	stopwatch.Start();
	318
596a855f	319	// get the primary vertex (from MC for the moment)
	320	TArrayF vertex(3);
	321	fRunLoader->GetHeader()->GenEventHeader()->PrimaryVertex(vertex);
	322	Double_t vtxPos[3] = {vertex[0], vertex[1], vertex[2]};
	323	Double_t vtxCov[6] = {
	324	0.005,
	325	0.000, 0.005,
	326	0.000, 0.000, 0.010
	327	};
	328	Double_t vtxErr[3] = {vtxCov[0], vtxCov[2], vtxCov[5]}; // diag. elements
	329	esd->SetVertex(vtxPos, vtxCov);
	330	fITSTracker->SetVertex(vtxPos, vtxErr);
	331	fTPCTracker->SetVertex(vtxPos, vtxErr);
	332	fTRDTracker->SetVertex(vtxPos, vtxErr);
	333
85555ca8	334	// TPC tracking
85555ca8	335	Info("RunTracking", "TPC tracking");
596a855f	336	fTPCLoader->LoadRecPoints("read");
	337	TTree* tpcTree = fTPCLoader->TreeR();
	338	if (!tpcTree) {
	339	Error("RunTracking", "Can't get the TPC cluster tree");
	340	return kFALSE;
	341	}
	342	fTPCTracker->LoadClusters(tpcTree);
	343	if (fTPCTracker->Clusters2Tracks(esd) != 0) {
85555ca8	344	Error("RunTracking", "TPC Clusters2Tracks failed");
596a855f	345	return kFALSE;
	346	}
	347
85555ca8	348	gAlice->GetDetector("TPC")->FillESD(esd); // preliminary PID
	349	AliESDpid::MakePID(esd); // for the ITS tracker
	350
	351	// ITS tracking
	352	Info("RunTracking", "ITS tracking");
596a855f	353	fITSLoader->LoadRecPoints("read");
	354	TTree* itsTree = fITSLoader->TreeR();
	355	if (!itsTree) {
	356	Error("RunTracking", "Can't get the ITS cluster tree");
	357	return kFALSE;
	358	}
	359	fITSTracker->LoadClusters(itsTree);
	360	if (fITSTracker->Clusters2Tracks(esd) != 0) {
85555ca8	361	Error("RunTracking", "ITS Clusters2Tracks failed");
596a855f	362	return kFALSE;
	363	}
	364
	365	// ITS back propagation
	366	Info("RunTracking", "ITS back propagation");
	367	if (fITSTracker->PropagateBack(esd) != 0) {
	368	Error("RunTracking", "ITS backward propagation failed");
	369	return kFALSE;
	370	}
	371
	372	// TPC back propagation
	373	Info("RunTracking", "TPC back propagation");
	374	if (fTPCTracker->PropagateBack(esd) != 0) {
	375	Error("RunTracking", "TPC backward propagation failed");
	376	return kFALSE;
	377	}
	378
	379	// TRD back propagation
	380	Info("RunTracking", "TRD back propagation");
	381	fTRDLoader->LoadRecPoints("read");
	382	TTree* trdTree = fTRDLoader->TreeR();
	383	if (!trdTree) {
	384	Error("RunTracking", "Can't get the TRD cluster tree");
	385	return kFALSE;
	386	}
	387	fTRDTracker->LoadClusters(trdTree);
	388	if (fTRDTracker->PropagateBack(esd) != 0) {
	389	Error("RunTracking", "TRD backward propagation failed");
	390	return kFALSE;
	391	}
	392
	393	// TOF back propagation
	394	Info("RunTracking", "TOF back propagation");
	395	fTOFLoader->LoadDigits("read");
	396	TTree* tofTree = fTOFLoader->TreeD();
	397	if (!tofTree) {
	398	Error("RunTracking", "Can't get the TOF digits tree");
	399	return kFALSE;
	400	}
	401	fTOFTracker->LoadClusters(tofTree);
	402	if (fTOFTracker->PropagateBack(esd) != 0) {
	403	Error("RunTracking", "TOF backward propagation failed");
	404	return kFALSE;
	405	}
	406	fTOFTracker->UnloadClusters();
	407	fTOFLoader->UnloadDigits();
	408
	409	// TRD inward refit
	410	Info("RunTracking", "TRD inward refit");
	411	if (fTRDTracker->RefitInward(esd) != 0) {
	412	Error("RunTracking", "TRD inward refit failed");
	413	return kFALSE;
	414	}
	415	fTRDTracker->UnloadClusters();
	416	fTRDLoader->UnloadRecPoints();
	417
	418	// TPC inward refit
	419	Info("RunTracking", "TPC inward refit");
	420	if (fTPCTracker->RefitInward(esd) != 0) {
	421	Error("RunTracking", "TPC inward refit failed");
	422	return kFALSE;
	423	}
	424	fTPCTracker->UnloadClusters();
	425	fTPCLoader->UnloadRecPoints();
426
427	// ITS inward refit
428	Info("RunTracking", "ITS inward refit");
429	if (fITSTracker->RefitInward(esd) != 0) {
430	Error("RunTracking", "ITS inward refit failed");
431	return kFALSE;
432	}
433	fITSTracker->UnloadClusters();
434	fITSLoader->UnloadRecPoints();
435
030b532d	436	Info("RunTracking", "execution time:");
	437	stopwatch.Print();
	438
596a855f	439	return kTRUE;
	440	}
	441
	442	//_____________________________________________________________________________
	443	Bool_t AliReconstruction::FillESD(AliESD* esd, const TString& detectors)
	444	{
	445	// fill the event summary data
	446
030b532d	447	TStopwatch stopwatch;
	448	stopwatch.Start();
	449
596a855f	450	TString detStr = detectors;
	451	TObjArray* detArray = gAlice->Detectors();
	452	for (Int_t iDet = 0; iDet < detArray->GetEntriesFast(); iDet++) {
	453	AliModule* det = (AliModule*) detArray->At(iDet);
	454	if (!det \|\| !det->IsActive()) continue;
	455	if (IsSelected(det->GetName(), detStr)) {
	456	Info("FillESD", "filling ESD for %s",
	457	det->GetName());
	458	det->FillESD(esd);
	459	}
	460	}
	461
	462	if ((detStr.CompareTo("ALL") != 0) && !detStr.IsNull()) {
	463	Error("FillESD", "the following detectors were not found: %s",
	464	detStr.Data());
	465	if (fStopOnError) return kFALSE;
	466	}
	467
030b532d	468	Info("FillESD", "execution time:");
	469	stopwatch.Print();
	470
596a855f	471	return kTRUE;
	472	}
	473
	474
	475	//_____________________________________________________________________________
	476	Bool_t AliReconstruction::IsSelected(TString detName, TString& detectors) const
	477	{
	478	// check whether detName is contained in detectors
	479	// if yes, it is removed from detectors
	480
	481	// check if all detectors are selected
	482	if ((detectors.CompareTo("ALL") == 0) \|\|
	483	detectors.BeginsWith("ALL ") \|\|
	484	detectors.EndsWith(" ALL") \|\|
	485	detectors.Contains(" ALL ")) {
	486	detectors = "ALL";
	487	return kTRUE;
	488	}
	489
	490	// search for the given detector
	491	Bool_t result = kFALSE;
	492	if ((detectors.CompareTo(detName) == 0) \|\|
	493	detectors.BeginsWith(detName+" ") \|\|
	494	detectors.EndsWith(" "+detName) \|\|
	495	detectors.Contains(" "+detName+" ")) {
	496	detectors.ReplaceAll(detName, "");
	497	result = kTRUE;
	498	}
	499
	500	// clean up the detectors string
	501	while (detectors.Contains(" ")) detectors.ReplaceAll(" ", " ");
	502	while (detectors.BeginsWith(" ")) detectors.Remove(0, 1);
	503	while (detectors.EndsWith(" ")) detectors.Remove(detectors.Length()-1, 1);
	504
	505	return result;
	506	}