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b0d2c2d3 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 VZERO reconstruction //
21/// //
22///////////////////////////////////////////////////////////////////////////////
23
35b120ff 24#include "AliRunLoader.h"
2eb38194 25#include "AliRawReader.h"
fe0adf2a 26#include "AliGRPObject.h"
27#include "AliCDBManager.h"
28#include "AliCDBStorage.h"
29#include "AliCDBEntry.h"
b0d2c2d3 30#include "AliVZEROReconstructor.h"
2eb38194 31#include "AliVZERORawStream.h"
b14e6eb4 32#include "AliESDEvent.h"
a055ee24 33#include "AliVZEROTriggerMask.h"
b090e6a3 34#include "AliESDfriend.h"
35#include "AliESDVZEROfriend.h"
fad64858 36#include "AliVZEROdigit.h"
e58b4e66 37#include "AliVZEROCalibData.h"
38#include "AliVZEROTriggerData.h"
b0d2c2d3 39
b0d2c2d3 40ClassImp(AliVZEROReconstructor)
41
ce7090f5 42//_____________________________________________________________________________
cb2228e6 43AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
fe0adf2a 44 fESDVZERO(0x0),
45 fESD(0x0),
46 fESDVZEROfriend(0x0),
47 fCalibData(GetCalibData()),
e58b4e66 48 fTriggerData(GetTriggerData()),
fe0adf2a 49 fCollisionMode(0),
50 fBeamEnergy(0.)
ce7090f5 51{
52 // Default constructor
ce7090f5 53 // Get calibration data
54
35b120ff 55 // fCalibData = GetCalibData();
44b6212f 56
ce7090f5 57}
58
59
60//_____________________________________________________________________________
61AliVZEROReconstructor& AliVZEROReconstructor::operator =
62 (const AliVZEROReconstructor& /*reconstructor*/)
63{
64// assignment operator
65
66 Fatal("operator =", "assignment operator not implemented");
67 return *this;
68}
69
70//_____________________________________________________________________________
71AliVZEROReconstructor::~AliVZEROReconstructor()
72{
73// destructor
44b6212f 74
b090e6a3 75 delete fESDVZERO;
76 delete fESDVZEROfriend;
35b120ff 77}
78
79//_____________________________________________________________________________
d76c31f4 80void AliVZEROReconstructor::Init()
35b120ff 81{
ef314913 82// initializer
ce7090f5 83
35b120ff 84 fESDVZERO = new AliESDVZERO;
b090e6a3 85 fESDVZEROfriend = new AliESDVZEROfriend;
fe0adf2a 86
87 GetCollisionMode(); // fCollisionMode =1 for Pb-Pb simulated data
35b120ff 88}
89
90//______________________________________________________________________
2e0ee64a 91void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
35b120ff 92{
44b6212f 93// converts RAW to digits - pedestal is subtracted
ef314913 94
2e0ee64a 95 if (!digitsTree) {
96 AliError("No digits tree!");
97 return;
98 }
35b120ff 99
2e0ee64a 100 TClonesArray* digitsArray = new TClonesArray("AliVZEROdigit");
101 digitsTree->Branch("VZERODigit", &digitsArray);
102
b090e6a3 103 fESDVZEROfriend->Reset();
104
2e0ee64a 105 rawReader->Reset();
106 AliVZERORawStream rawStream(rawReader);
9d62c464 107 if (rawStream.Next()) {
db0db003 108 Float_t ADC_max[64], adc[64];
109 Bool_t BBFlag[64], BGFlag[64], integrator[64];
6c115a32 110 Float_t time[64], width[64];
9d62c464 111 for(Int_t i=0; i<64; i++) {
44b6212f 112 // Search for the maximum charge in the train of 21 LHC clocks
9d62c464 113 // regardless of the integrator which has been operated:
db0db003 114 ADC_max[i] = 0.0;
d0502ab2 115 Int_t imax = 0;
9d62c464 116 for(Int_t iClock=0; iClock<21; iClock++){
db0db003 117 if(rawStream.GetPedestal(i,iClock) > ADC_max[i])
118 {ADC_max[i]= rawStream.GetPedestal(i,iClock);
d0502ab2 119 imax = iClock;}
9d62c464 120 }
121 // Convert i (FEE channel numbering) to j (aliroot channel numbering)
db0db003 122 Int_t j = rawStream.GetOfflineChannel(i);
e58b4e66 123 Int_t board = j / 8;
db0db003 124 adc[j] = ADC_max[i];
e58b4e66 125 time[j] = rawStream.GetTime(i)/ (25./256.) * fTriggerData->GetTimeResolution(board);
126 width[j] = rawStream.GetWidth(i) / 0.4 * fTriggerData->GetWidthResolution(board);
db0db003 127 BBFlag[j] = rawStream.GetBBFlag(i,imax);
128 BGFlag[j] = rawStream.GetBGFlag(i,imax);
fad64858 129 integrator[j] = rawStream.GetIntegratorFlag(i,imax);
b090e6a3 130
131 // Filling the esd friend object
132 fESDVZEROfriend->SetBBScalers(j,rawStream.GetBBScalers(i));
133 fESDVZEROfriend->SetBGScalers(j,rawStream.GetBGScalers(i));
134 for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++) {
db0db003 135 fESDVZEROfriend->SetChargeMB(j,iBunch,rawStream.GetChargeMB(i,iBunch));
136 fESDVZEROfriend->SetIntMBFlag(j,iBunch,rawStream.GetIntMBFlag(i,iBunch));
137 fESDVZEROfriend->SetBBMBFlag(j,iBunch,rawStream.GetBBMBFlag(i,iBunch));
138 fESDVZEROfriend->SetBGMBFlag(j,iBunch,rawStream.GetBGMBFlag(i,iBunch));
b090e6a3 139 }
140 for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
db0db003 141 fESDVZEROfriend->SetPedestal(j,iEv,rawStream.GetPedestal(i,iEv));
142 fESDVZEROfriend->SetIntegratorFlag(j,iEv,rawStream.GetIntegratorFlag(i,iEv));
143 fESDVZEROfriend->SetBBFlag(j,iEv,rawStream.GetBBFlag(i,iEv));
144 fESDVZEROfriend->SetBGFlag(j,iEv,rawStream.GetBGFlag(i,iEv));
b090e6a3 145 }
e58b4e66 146 fESDVZEROfriend->SetTime(j,time[j]);
147 fESDVZEROfriend->SetWidth(j,width[j]);
9d62c464 148 }
b090e6a3 149
150 // Filling the esd friend object
151 fESDVZEROfriend->SetTriggerInputs(rawStream.GetTriggerInputs());
152 fESDVZEROfriend->SetTriggerInputsMask(rawStream.GetTriggerInputsMask());
153
154 for(Int_t iScaler = 0; iScaler < AliESDVZEROfriend::kNScalers; iScaler++)
db0db003 155 fESDVZEROfriend->SetTriggerScalers(iScaler,rawStream.GetTriggerScalers(iScaler));
b090e6a3 156
db0db003 157 for(Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++)
158 fESDVZEROfriend->SetBunchNumbersMB(iBunch,rawStream.GetBunchNumbersMB(iBunch));
b090e6a3 159
160
9d62c464 161 // Channels(aliroot numbering) will be ordered in the tree
162 for(Int_t iChannel = 0; iChannel < 64; iChannel++) {
163 new ((*digitsArray)[digitsArray->GetEntriesFast()])
d0502ab2 164 AliVZEROdigit(iChannel, adc[iChannel], time[iChannel],
fad64858 165 width[iChannel], BBFlag[iChannel], BGFlag[iChannel],integrator[iChannel]);
f0ff6fad 166 }
167 digitsTree->Fill();
2e0ee64a 168 }
2e0ee64a 169}
170
171//______________________________________________________________________
172void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /*clustersTree*/,
b14e6eb4 173 AliESDEvent* esd) const
2e0ee64a 174{
ef314913 175// fills multiplicities to the ESD
fe0adf2a 176
2e0ee64a 177 if (!digitsTree) {
fe0adf2a 178 AliError("No digits tree!");
179 return;
2e0ee64a 180 }
a055ee24 181
2e0ee64a 182 TClonesArray* digitsArray = NULL;
183 TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
184 digitBranch->SetAddress(&digitsArray);
35b120ff 185
44b6212f 186 Float_t mult[64];
db0db003 187 Float_t adc[64];
188 Float_t time[64];
189 Float_t width[64];
d0502ab2 190 Bool_t BBFlag[64];
191 Bool_t BGFlag[64];
192
35b120ff 193 for (Int_t i=0; i<64; i++){
db0db003 194 adc[i] = 0.0;
d0502ab2 195 mult[i] = 0.0;
db0db003 196 time[i] = 0.0;
197 width[i] = 0.0;
d0502ab2 198 BBFlag[i] = kFALSE;
199 BGFlag[i] = kFALSE;
a055ee24 200 }
35b120ff 201
a055ee24 202 // loop over VZERO entries to get multiplicity
2e0ee64a 203 Int_t nEntries = (Int_t)digitsTree->GetEntries();
35b120ff 204 for (Int_t e=0; e<nEntries; e++) {
2e0ee64a 205 digitsTree->GetEvent(e);
35b120ff 206
2e0ee64a 207 Int_t nDigits = digitsArray->GetEntriesFast();
35b120ff 208
209 for (Int_t d=0; d<nDigits; d++) {
63627899 210 AliVZEROdigit* digit = (AliVZEROdigit*)digitsArray->At(d);
211 Int_t pmNumber = digit->PMNumber();
212 // Pedestal retrieval and suppression:
db0db003 213 Float_t pedestal = fCalibData->GetPedestal(d);
214 adc[pmNumber] = digit->ADC() - pedestal;
215 time[pmNumber] = digit->Time();
216 width[pmNumber] = digit->Width();
217 BBFlag[pmNumber]= digit->BBFlag();
218 BGFlag[pmNumber]= digit->BGFlag();
23c8ec8e 219 // printf("PM = %d, MIP per ADC channel = %f \n",pmNumber, fCalibData->GetMIPperADC(pmNumber));
db0db003 220 //AliInfo(Form("PM = %d, ADC = %f TDC %f",pmNumber, digit->ADC(),digit->Time()));
44b6212f 221 // cut of ADC at 1MIP/2
fe0adf2a 222 if(fCollisionMode >0) {
223 Float_t MIP = 2.0;
db0db003 224 if (adc[pmNumber] > (MIP/2.) ) mult[pmNumber] += adc[pmNumber]*(1.0/MIP) ;
fe0adf2a 225 }
226 else{
db0db003 227 if (adc[pmNumber] > (1.0/fCalibData->GetMIPperADC(pmNumber) /2.) )
228 mult[pmNumber] += adc[pmNumber]*fCalibData->GetMIPperADC(pmNumber);
fe0adf2a 229 }
35b120ff 230 } // end of loop over digits
35b120ff 231 } // end of loop over events in digits tree
6c6d6114 232
233 fESDVZERO->SetMultiplicity(mult);
28fdf12c 234 fESDVZERO->SetADC(adc);
235 fESDVZERO->SetTime(time);
d0502ab2 236 fESDVZERO->SetWidth(width);
237 fESDVZERO->SetBBFlag(BBFlag);
238 fESDVZERO->SetBGFlag(BGFlag);
a055ee24 239
240 // now get the trigger mask
241
242 AliVZEROTriggerMask *TriggerMask = new AliVZEROTriggerMask();
fe0adf2a 243 TriggerMask->SetAdcThreshold(10.0/2.0);
a055ee24 244 TriggerMask->SetTimeWindowWidthBBA(50);
245 TriggerMask->SetTimeWindowWidthBGA(20);
246 TriggerMask->SetTimeWindowWidthBBC(50);
247 TriggerMask->SetTimeWindowWidthBGC(20);
248 TriggerMask->FillMasks(digitsTree,digitsArray);
249
250 fESDVZERO->SetBBtriggerV0A(TriggerMask->GetBBtriggerV0A());
251 fESDVZERO->SetBGtriggerV0A(TriggerMask->GetBGtriggerV0A());
252 fESDVZERO->SetBBtriggerV0C(TriggerMask->GetBBtriggerV0C());
253 fESDVZERO->SetBGtriggerV0C(TriggerMask->GetBGtriggerV0C());
35b120ff 254
2e0ee64a 255 if (esd) {
44b6212f 256 AliDebug(1, Form("Writing VZERO data to ESD tree"));
257 esd->SetVZEROData(fESDVZERO);
2e0ee64a 258 }
b090e6a3 259
260 if (esd) {
fe0adf2a 261 AliESDfriend *fr = (AliESDfriend*)esd->FindListObject("AliESDfriend");
262 if (fr) {
263 AliDebug(1, Form("Writing VZERO friend data to ESD tree"));
264 fr->SetVZEROfriend(fESDVZEROfriend);
b090e6a3 265 }
266 }
35b120ff 267}
268
ce7090f5 269//_____________________________________________________________________________
270AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
271{
ef314913 272// Sets the storage
273
ce7090f5 274 Bool_t deleteManager = kFALSE;
275
276 AliCDBManager *manager = AliCDBManager::Instance();
277 AliCDBStorage *defstorage = manager->GetDefaultStorage();
278
279 if(!defstorage || !(defstorage->Contains("VZERO"))){
280 AliWarning("No default storage set or default storage doesn't contain VZERO!");
281 manager->SetDefaultStorage(uri);
282 deleteManager = kTRUE;
283 }
284
285 AliCDBStorage *storage = manager->GetDefaultStorage();
286
287 if(deleteManager){
44b6212f 288 AliCDBManager::Instance()->UnsetDefaultStorage();
289 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
ce7090f5 290 }
291
292 return storage;
293}
294
fe0adf2a 295//____________________________________________________________________________
296void AliVZEROReconstructor::GetCollisionMode()
297{
298// Retrieves the collision mode from GRP data
299
300// Initialization of the GRP entry
539f3bd1 301// To be replace by a call to AliRunInfo object
fe0adf2a 302
539f3bd1 303 AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data");
304 AliGRPObject* grpData = 0x0;
fe0adf2a 305
306 if(entry){
307 TMap* m = dynamic_cast<TMap*>(entry->GetObject()); // old GRP entry
308 if(m){
fe0adf2a 309 grpData = new AliGRPObject();
310 grpData->ReadValuesFromMap(m);
311 }
312 else{
313 grpData = dynamic_cast<AliGRPObject*>(entry->GetObject()); // new GRP entry
fe0adf2a 314 }
fe0adf2a 315 }
316
539f3bd1 317 if(!grpData) { AliError("No GRP entry found in OCDB!");
fe0adf2a 318 return; }
319
320// Retrieval of simulated collision mode
321
322 TString beamType = grpData->GetBeamType();
323 if(beamType==AliGRPObject::GetInvalidString()){
324 AliError("GRP/GRP/Data entry: missing value for the beam type !");
325 AliError("\t VZERO cannot retrieve beam type\n");
326 return;
327 }
328
329 if( (beamType.CompareTo("P-P") ==0) || (beamType.CompareTo("p-p") ==0) ){
330 fCollisionMode=0;
331 }
332 else if( (beamType.CompareTo("Pb-Pb") ==0) || (beamType.CompareTo("A-A") ==0) ){
333 fCollisionMode=1;
334 }
335
336 fBeamEnergy = grpData->GetBeamEnergy();
337 if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
338 AliError("GRP/GRP/Data entry: missing value for the beam energy ! Using 0");
339 fBeamEnergy = 0.;
340 }
341
342// printf("\n ++++++ Beam type and collision mode retrieved as %s %d @ %1.3f GeV ++++++\n\n",beamType.Data(), fCollisionMode, fBeamEnergy);
343
344}
345
ce7090f5 346//_____________________________________________________________________________
347AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
348{
ef314913 349 // Gets calibration object for VZERO set
ce7090f5 350
c0b82b5a 351 AliCDBManager *man = AliCDBManager::Instance();
ce7090f5 352
c0b82b5a 353 AliCDBEntry *entry=0;
354
355 entry = man->Get("VZERO/Calib/Data");
356
94a600a1 357// if(!entry){
358// AliWarning("Load of calibration data from default storage failed!");
359// AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
360// Int_t runNumber = man->GetRun();
162637e4 361// entry = man->GetStorage("local://$ALICE_ROOT/OCDB")
94a600a1 362// ->Get("VZERO/Calib/Data",runNumber);
363//
364// }
c0b82b5a 365
366 // Retrieval of data in directory VZERO/Calib/Data:
367
c0b82b5a 368 AliVZEROCalibData *calibdata = 0;
369
370 if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
94a600a1 371 if (!calibdata) AliFatal("No calibration data from calibration database !");
ce7090f5 372
373 return calibdata;
374}
44b6212f 375
e58b4e66 376//_____________________________________________________________________________
377AliVZEROTriggerData* AliVZEROReconstructor::GetTriggerData() const
378{
379 // Gets calibration object for VZERO set
380
381 AliCDBManager *man = AliCDBManager::Instance();
382
383 AliCDBEntry *entry=0;
384
385 entry = man->Get("VZERO/Trigger/Data");
386
387// if(!entry){
388// AliWarning("Load of calibration data from default storage failed!");
389// AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
390// Int_t runNumber = man->GetRun();
391// entry = man->GetStorage("local://$ALICE_ROOT/OCDB")
392// ->Get("VZERO/Calib/Data",runNumber);
393//
394// }
395
396 // Retrieval of data in directory VZERO/Calib/Data:
397
398 AliVZEROTriggerData *triggerdata = 0;
399
400 if (entry) triggerdata = (AliVZEROTriggerData*) entry->GetObject();
401 if (!triggerdata) AliFatal("No trigger data from calibration database !");
402
403 return triggerdata;
404}