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 "AliRunInfo.h"
40 ClassImp(AliVZEROReconstructor)
42 //_____________________________________________________________________________
43 AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
47 fCalibData(GetCalibData()),
51 // Default constructor
52 // Get calibration data
54 // fCalibData = GetCalibData();
59 //_____________________________________________________________________________
60 AliVZEROReconstructor& AliVZEROReconstructor::operator =
61 (const AliVZEROReconstructor& /*reconstructor*/)
63 // assignment operator
65 Fatal("operator =", "assignment operator not implemented");
69 //_____________________________________________________________________________
70 AliVZEROReconstructor::~AliVZEROReconstructor()
75 delete fESDVZEROfriend;
78 //_____________________________________________________________________________
79 void AliVZEROReconstructor::Init()
83 fESDVZERO = new AliESDVZERO;
84 fESDVZEROfriend = new AliESDVZEROfriend;
86 GetCollisionMode(); // fCollisionMode =1 for Pb-Pb simulated data
89 //______________________________________________________________________
90 void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
92 // converts RAW to digits
95 AliError("No digits tree!");
99 TClonesArray* digitsArray = new TClonesArray("AliVZEROdigit");
100 digitsTree->Branch("VZERODigit", &digitsArray);
102 fESDVZEROfriend->Reset();
105 AliVZERORawStream rawStream(rawReader);
106 if (rawStream.Next()) {
108 Float_t time[64], width[64];
109 Bool_t BBFlag[64], BGFlag[64], integrator[64];
110 for(Int_t i=0; i<64; i++) {
111 Int_t j = rawStream.GetOfflineChannel(i);
117 integrator[j] = kFALSE;
118 // Search for the maximum charge in the train of 21 LHC clocks
119 // regardless of the integrator which has been operated:
122 Float_t adcPedSub[21];
123 for(Int_t iClock=0; iClock<21; iClock++){
124 Bool_t iIntegrator = rawStream.GetIntegratorFlag(i,iClock);
125 Int_t k = j+64*iIntegrator;
126 adcPedSub[iClock] = rawStream.GetPedestal(i,iClock) - fCalibData->GetPedestal(k);
127 if(adcPedSub[iClock] <= GetRecoParam()->GetNSigmaPed()*fCalibData->GetSigma(k)) {
128 adcPedSub[iClock] = 0;
131 if(iClock < GetRecoParam()->GetStartClock() || iClock > GetRecoParam()->GetEndClock()) continue;
132 if(adcPedSub[iClock] > maxadc) {
133 maxadc = adcPedSub[iClock];
138 AliDebug(2,Form("Channel %d (online), %d (offline)",i,j));
140 Int_t start = imax - GetRecoParam()->GetNPreClocks();
141 if (start < 0) start = 0;
142 Int_t end = imax + GetRecoParam()->GetNPostClocks();
143 if (end > 20) end = 20;
144 for(Int_t iClock = start; iClock <= end; iClock++) {
146 adc[j] += rawStream.GetPedestal(i,iClock);
148 adc[j] += adcPedSub[iClock];
150 AliDebug(2,Form("clock = %d adc = %f",iClock,rawStream.GetPedestal(i,iClock)));
152 // Convert i (FEE channel numbering) to j (aliroot channel numbering)
155 time[j] = rawStream.GetTime(i)/ (25./256.) * fCalibData->GetTimeResolution(board);
156 width[j] = rawStream.GetWidth(i) / 0.4 * fCalibData->GetWidthResolution(board);
157 BBFlag[j] = rawStream.GetBBFlag(i,imax);
158 BGFlag[j] = rawStream.GetBGFlag(i,imax);
159 integrator[j] = rawStream.GetIntegratorFlag(i,imax);
162 // Filling the esd friend object
163 fESDVZEROfriend->SetBBScalers(j,rawStream.GetBBScalers(i));
164 fESDVZEROfriend->SetBGScalers(j,rawStream.GetBGScalers(i));
165 for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++) {
166 fESDVZEROfriend->SetChargeMB(j,iBunch,rawStream.GetChargeMB(i,iBunch));
167 fESDVZEROfriend->SetIntMBFlag(j,iBunch,rawStream.GetIntMBFlag(i,iBunch));
168 fESDVZEROfriend->SetBBMBFlag(j,iBunch,rawStream.GetBBMBFlag(i,iBunch));
169 fESDVZEROfriend->SetBGMBFlag(j,iBunch,rawStream.GetBGMBFlag(i,iBunch));
171 for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
172 fESDVZEROfriend->SetPedestal(j,iEv,rawStream.GetPedestal(i,iEv));
173 fESDVZEROfriend->SetIntegratorFlag(j,iEv,rawStream.GetIntegratorFlag(i,iEv));
174 fESDVZEROfriend->SetBBFlag(j,iEv,rawStream.GetBBFlag(i,iEv));
175 fESDVZEROfriend->SetBGFlag(j,iEv,rawStream.GetBGFlag(i,iEv));
177 fESDVZEROfriend->SetTime(j,time[j]);
178 fESDVZEROfriend->SetWidth(j,width[j]);
181 // Filling the esd friend object
182 fESDVZEROfriend->SetTriggerInputs(rawStream.GetTriggerInputs());
183 fESDVZEROfriend->SetTriggerInputsMask(rawStream.GetTriggerInputsMask());
185 for(Int_t iScaler = 0; iScaler < AliESDVZEROfriend::kNScalers; iScaler++)
186 fESDVZEROfriend->SetTriggerScalers(iScaler,rawStream.GetTriggerScalers(iScaler));
188 for(Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++)
189 fESDVZEROfriend->SetBunchNumbersMB(iBunch,rawStream.GetBunchNumbersMB(iBunch));
192 // Channels(aliroot numbering) will be ordered in the tree
193 for(Int_t iChannel = 0; iChannel < 64; iChannel++) {
194 if(fCalibData->IsChannelDead(iChannel)){
195 adc[iChannel] = (Float_t) kInvalidADC;
196 time[iChannel] = (Float_t) kInvalidTime;
198 if (adc[iChannel] > 0)
199 new ((*digitsArray)[digitsArray->GetEntriesFast()])
200 AliVZEROdigit(iChannel, adc[iChannel], time[iChannel],
201 width[iChannel], BBFlag[iChannel], BGFlag[iChannel],integrator[iChannel]);
208 //______________________________________________________________________
209 void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /*clustersTree*/,
210 AliESDEvent* esd) const
212 // fills multiplicities to the ESD - pedestal is now subtracted
215 AliError("No digits tree!");
219 TClonesArray* digitsArray = NULL;
220 TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
221 digitBranch->SetAddress(&digitsArray);
230 for (Int_t i=0; i<64; i++){
239 // loop over VZERO entries to get multiplicity
240 Int_t nEntries = (Int_t)digitsTree->GetEntries();
241 for (Int_t e=0; e<nEntries; e++) {
242 digitsTree->GetEvent(e);
244 Int_t nDigits = digitsArray->GetEntriesFast();
246 for (Int_t d=0; d<nDigits; d++) {
247 AliVZEROdigit* digit = (AliVZEROdigit*)digitsArray->At(d);
248 Int_t pmNumber = digit->PMNumber();
249 // Pedestal retrieval and suppression:
250 Bool_t integrator = digit->Integrator();
251 Float_t pedestal = fCalibData->GetPedestal(d + 64*integrator);
252 adc[pmNumber] = digit->ADC() - pedestal;
253 time[pmNumber] = digit->Time();
254 width[pmNumber] = digit->Width();
255 BBFlag[pmNumber]= digit->BBFlag();
256 BGFlag[pmNumber]= digit->BGFlag();
258 AliDebug(2,Form("PM = %d ADC = %f TDC %f",pmNumber, digit->ADC(),digit->Time()));
260 Int_t k = pmNumber+64*integrator;
261 if(adc[pmNumber] > (fCalibData->GetPedestal(k) + GetRecoParam()->GetNSigmaPed()*fCalibData->GetSigma(k))) {
262 mult[pmNumber] += adc[pmNumber]*fCalibData->GetMIPperADC(pmNumber);
264 } // end of loop over digits
265 } // end of loop over events in digits tree
267 fESDVZERO->SetMultiplicity(mult);
268 fESDVZERO->SetADC(adc);
269 fESDVZERO->SetTime(time);
270 fESDVZERO->SetWidth(width);
271 fESDVZERO->SetBBFlag(BBFlag);
272 fESDVZERO->SetBGFlag(BGFlag);
274 // now get the trigger mask
276 AliVZEROTriggerMask *TriggerMask = new AliVZEROTriggerMask();
277 TriggerMask->SetAdcThreshold(10.0/2.0);
278 TriggerMask->SetTimeWindowWidthBBA(50);
279 TriggerMask->SetTimeWindowWidthBGA(20);
280 TriggerMask->SetTimeWindowWidthBBC(50);
281 TriggerMask->SetTimeWindowWidthBGC(20);
282 TriggerMask->FillMasks(digitsTree,digitsArray);
284 fESDVZERO->SetBBtriggerV0A(TriggerMask->GetBBtriggerV0A());
285 fESDVZERO->SetBGtriggerV0A(TriggerMask->GetBGtriggerV0A());
286 fESDVZERO->SetBBtriggerV0C(TriggerMask->GetBBtriggerV0C());
287 fESDVZERO->SetBGtriggerV0C(TriggerMask->GetBGtriggerV0C());
290 AliDebug(1, Form("Writing VZERO data to ESD tree"));
291 esd->SetVZEROData(fESDVZERO);
295 AliESDfriend *fr = (AliESDfriend*)esd->FindListObject("AliESDfriend");
297 AliDebug(1, Form("Writing VZERO friend data to ESD tree"));
298 fr->SetVZEROfriend(fESDVZEROfriend);
303 //_____________________________________________________________________________
304 AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
308 Bool_t deleteManager = kFALSE;
310 AliCDBManager *manager = AliCDBManager::Instance();
311 AliCDBStorage *defstorage = manager->GetDefaultStorage();
313 if(!defstorage || !(defstorage->Contains("VZERO"))){
314 AliWarning("No default storage set or default storage doesn't contain VZERO!");
315 manager->SetDefaultStorage(uri);
316 deleteManager = kTRUE;
319 AliCDBStorage *storage = manager->GetDefaultStorage();
322 AliCDBManager::Instance()->UnsetDefaultStorage();
323 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
329 //____________________________________________________________________________
330 void AliVZEROReconstructor::GetCollisionMode()
332 // Retrieval of collision mode
334 TString beamType = GetRunInfo()->GetBeamType();
335 if(beamType==AliGRPObject::GetInvalidString()){
336 AliError("VZERO cannot retrieve beam type");
340 if( (beamType.CompareTo("P-P") ==0) || (beamType.CompareTo("p-p") ==0) ){
343 else if( (beamType.CompareTo("Pb-Pb") ==0) || (beamType.CompareTo("A-A") ==0) ){
347 fBeamEnergy = GetRunInfo()->GetBeamEnergy();
348 if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
349 AliError("Missing value for the beam energy ! Using 0");
353 AliDebug(1,Form("\n ++++++ Beam type and collision mode retrieved as %s %d @ %1.3f GeV ++++++\n\n",beamType.Data(), fCollisionMode, fBeamEnergy));
357 //_____________________________________________________________________________
358 AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
360 // Gets calibration object for VZERO set
362 AliCDBManager *man = AliCDBManager::Instance();
364 AliCDBEntry *entry=0;
366 entry = man->Get("VZERO/Calib/Data");
369 // AliWarning("Load of calibration data from default storage failed!");
370 // AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
371 // Int_t runNumber = man->GetRun();
372 // entry = man->GetStorage("local://$ALICE_ROOT/OCDB")
373 // ->Get("VZERO/Calib/Data",runNumber);
377 // Retrieval of data in directory VZERO/Calib/Data:
379 AliVZEROCalibData *calibdata = 0;
381 if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
382 if (!calibdata) AliFatal("No calibration data from calibration database !");