1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 /// class for VZERO reconstruction //
22 ///////////////////////////////////////////////////////////////////////////////
24 #include "AliRunLoader.h"
25 #include "AliRawReader.h"
26 #include "AliGRPObject.h"
27 #include "AliCDBManager.h"
28 #include "AliCDBStorage.h"
29 #include "AliCDBEntry.h"
30 #include "AliVZEROReconstructor.h"
31 #include "AliVZERORawStream.h"
32 #include "AliESDEvent.h"
33 #include "AliVZEROTriggerMask.h"
34 #include "AliESDfriend.h"
35 #include "AliESDVZEROfriend.h"
36 #include "AliVZEROdigit.h"
37 #include "AliVZEROCalibData.h"
38 #include "AliVZEROTriggerData.h"
40 ClassImp(AliVZEROReconstructor)
42 //_____________________________________________________________________________
43 AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
47 fCalibData(GetCalibData()),
48 fTriggerData(GetTriggerData()),
52 // Default constructor
53 // Get calibration data
55 // fCalibData = GetCalibData();
60 //_____________________________________________________________________________
61 AliVZEROReconstructor& AliVZEROReconstructor::operator =
62 (const AliVZEROReconstructor& /*reconstructor*/)
64 // assignment operator
66 Fatal("operator =", "assignment operator not implemented");
70 //_____________________________________________________________________________
71 AliVZEROReconstructor::~AliVZEROReconstructor()
76 delete fESDVZEROfriend;
79 //_____________________________________________________________________________
80 void AliVZEROReconstructor::Init()
84 fESDVZERO = new AliESDVZERO;
85 fESDVZEROfriend = new AliESDVZEROfriend;
87 GetCollisionMode(); // fCollisionMode =1 for Pb-Pb simulated data
90 //______________________________________________________________________
91 void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
93 // converts RAW to digits - pedestal is subtracted
96 AliError("No digits tree!");
100 TClonesArray* digitsArray = new TClonesArray("AliVZEROdigit");
101 digitsTree->Branch("VZERODigit", &digitsArray);
103 fESDVZEROfriend->Reset();
106 AliVZERORawStream rawStream(rawReader);
107 if (rawStream.Next()) {
108 Float_t ADC_max[64], adc[64];
109 Bool_t BBFlag[64], BGFlag[64], integrator[64];
110 Float_t time[64], width[64];
111 for(Int_t i=0; i<64; i++) {
112 // Search for the maximum charge in the train of 21 LHC clocks
113 // regardless of the integrator which has been operated:
116 for(Int_t iClock=0; iClock<21; iClock++){
117 if(rawStream.GetPedestal(i,iClock) > ADC_max[i])
118 {ADC_max[i]= rawStream.GetPedestal(i,iClock);
121 // Convert i (FEE channel numbering) to j (aliroot channel numbering)
122 Int_t j = rawStream.GetOfflineChannel(i);
125 time[j] = rawStream.GetTime(i)/ (25./256.) * fTriggerData->GetTimeResolution(board);
126 width[j] = rawStream.GetWidth(i) / 0.4 * fTriggerData->GetWidthResolution(board);
127 BBFlag[j] = rawStream.GetBBFlag(i,imax);
128 BGFlag[j] = rawStream.GetBGFlag(i,imax);
129 integrator[j] = rawStream.GetIntegratorFlag(i,imax);
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++) {
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));
140 for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
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));
146 fESDVZEROfriend->SetTime(j,time[j]);
147 fESDVZEROfriend->SetWidth(j,width[j]);
150 // Filling the esd friend object
151 fESDVZEROfriend->SetTriggerInputs(rawStream.GetTriggerInputs());
152 fESDVZEROfriend->SetTriggerInputsMask(rawStream.GetTriggerInputsMask());
154 for(Int_t iScaler = 0; iScaler < AliESDVZEROfriend::kNScalers; iScaler++)
155 fESDVZEROfriend->SetTriggerScalers(iScaler,rawStream.GetTriggerScalers(iScaler));
157 for(Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++)
158 fESDVZEROfriend->SetBunchNumbersMB(iBunch,rawStream.GetBunchNumbersMB(iBunch));
161 // Channels(aliroot numbering) will be ordered in the tree
162 for(Int_t iChannel = 0; iChannel < 64; iChannel++) {
163 new ((*digitsArray)[digitsArray->GetEntriesFast()])
164 AliVZEROdigit(iChannel, adc[iChannel], time[iChannel],
165 width[iChannel], BBFlag[iChannel], BGFlag[iChannel],integrator[iChannel]);
171 //______________________________________________________________________
172 void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /*clustersTree*/,
173 AliESDEvent* esd) const
175 // fills multiplicities to the ESD
178 AliError("No digits tree!");
182 TClonesArray* digitsArray = NULL;
183 TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
184 digitBranch->SetAddress(&digitsArray);
193 for (Int_t i=0; i<64; i++){
202 // loop over VZERO entries to get multiplicity
203 Int_t nEntries = (Int_t)digitsTree->GetEntries();
204 for (Int_t e=0; e<nEntries; e++) {
205 digitsTree->GetEvent(e);
207 Int_t nDigits = digitsArray->GetEntriesFast();
209 for (Int_t d=0; d<nDigits; d++) {
210 AliVZEROdigit* digit = (AliVZEROdigit*)digitsArray->At(d);
211 Int_t pmNumber = digit->PMNumber();
212 // Pedestal retrieval and suppression:
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();
219 // printf("PM = %d, MIP per ADC channel = %f \n",pmNumber, fCalibData->GetMIPperADC(pmNumber));
220 //AliInfo(Form("PM = %d, ADC = %f TDC %f",pmNumber, digit->ADC(),digit->Time()));
221 // cut of ADC at 1MIP/2
222 if(fCollisionMode >0) {
224 if (adc[pmNumber] > (MIP/2.) ) mult[pmNumber] += adc[pmNumber]*(1.0/MIP) ;
227 if (adc[pmNumber] > (1.0/fCalibData->GetMIPperADC(pmNumber) /2.) )
228 mult[pmNumber] += adc[pmNumber]*fCalibData->GetMIPperADC(pmNumber);
230 } // end of loop over digits
231 } // end of loop over events in digits tree
233 fESDVZERO->SetMultiplicity(mult);
234 fESDVZERO->SetADC(adc);
235 fESDVZERO->SetTime(time);
236 fESDVZERO->SetWidth(width);
237 fESDVZERO->SetBBFlag(BBFlag);
238 fESDVZERO->SetBGFlag(BGFlag);
240 // now get the trigger mask
242 AliVZEROTriggerMask *TriggerMask = new AliVZEROTriggerMask();
243 TriggerMask->SetAdcThreshold(10.0/2.0);
244 TriggerMask->SetTimeWindowWidthBBA(50);
245 TriggerMask->SetTimeWindowWidthBGA(20);
246 TriggerMask->SetTimeWindowWidthBBC(50);
247 TriggerMask->SetTimeWindowWidthBGC(20);
248 TriggerMask->FillMasks(digitsTree,digitsArray);
250 fESDVZERO->SetBBtriggerV0A(TriggerMask->GetBBtriggerV0A());
251 fESDVZERO->SetBGtriggerV0A(TriggerMask->GetBGtriggerV0A());
252 fESDVZERO->SetBBtriggerV0C(TriggerMask->GetBBtriggerV0C());
253 fESDVZERO->SetBGtriggerV0C(TriggerMask->GetBGtriggerV0C());
256 AliDebug(1, Form("Writing VZERO data to ESD tree"));
257 esd->SetVZEROData(fESDVZERO);
261 AliESDfriend *fr = (AliESDfriend*)esd->FindListObject("AliESDfriend");
263 AliDebug(1, Form("Writing VZERO friend data to ESD tree"));
264 fr->SetVZEROfriend(fESDVZEROfriend);
269 //_____________________________________________________________________________
270 AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
274 Bool_t deleteManager = kFALSE;
276 AliCDBManager *manager = AliCDBManager::Instance();
277 AliCDBStorage *defstorage = manager->GetDefaultStorage();
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;
285 AliCDBStorage *storage = manager->GetDefaultStorage();
288 AliCDBManager::Instance()->UnsetDefaultStorage();
289 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
295 //____________________________________________________________________________
296 void AliVZEROReconstructor::GetCollisionMode()
298 // Retrieves the collision mode from GRP data
300 // Initialization of the GRP entry
301 // To be replace by a call to AliRunInfo object
303 AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data");
304 AliGRPObject* grpData = 0x0;
307 TMap* m = dynamic_cast<TMap*>(entry->GetObject()); // old GRP entry
309 grpData = new AliGRPObject();
310 grpData->ReadValuesFromMap(m);
313 grpData = dynamic_cast<AliGRPObject*>(entry->GetObject()); // new GRP entry
317 if(!grpData) { AliError("No GRP entry found in OCDB!");
320 // Retrieval of simulated collision mode
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");
329 if( (beamType.CompareTo("P-P") ==0) || (beamType.CompareTo("p-p") ==0) ){
332 else if( (beamType.CompareTo("Pb-Pb") ==0) || (beamType.CompareTo("A-A") ==0) ){
336 fBeamEnergy = grpData->GetBeamEnergy();
337 if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
338 AliError("GRP/GRP/Data entry: missing value for the beam energy ! Using 0");
342 // printf("\n ++++++ Beam type and collision mode retrieved as %s %d @ %1.3f GeV ++++++\n\n",beamType.Data(), fCollisionMode, fBeamEnergy);
346 //_____________________________________________________________________________
347 AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
349 // Gets calibration object for VZERO set
351 AliCDBManager *man = AliCDBManager::Instance();
353 AliCDBEntry *entry=0;
355 entry = man->Get("VZERO/Calib/Data");
358 // AliWarning("Load of calibration data from default storage failed!");
359 // AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
360 // Int_t runNumber = man->GetRun();
361 // entry = man->GetStorage("local://$ALICE_ROOT/OCDB")
362 // ->Get("VZERO/Calib/Data",runNumber);
366 // Retrieval of data in directory VZERO/Calib/Data:
368 AliVZEROCalibData *calibdata = 0;
370 if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
371 if (!calibdata) AliFatal("No calibration data from calibration database !");
376 //_____________________________________________________________________________
377 AliVZEROTriggerData* AliVZEROReconstructor::GetTriggerData() const
379 // Gets calibration object for VZERO set
381 AliCDBManager *man = AliCDBManager::Instance();
383 AliCDBEntry *entry=0;
385 entry = man->Get("VZERO/Trigger/Data");
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);
396 // Retrieval of data in directory VZERO/Calib/Data:
398 AliVZEROTriggerData *triggerdata = 0;
400 if (entry) triggerdata = (AliVZEROTriggerData*) entry->GetObject();
401 if (!triggerdata) AliFatal("No trigger data from calibration database !");