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"
38 ClassImp(AliVZEROReconstructor)
40 //_____________________________________________________________________________
41 AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
45 fCalibData(GetCalibData()),
49 // Default constructor
50 // Get calibration data
52 // fCalibData = GetCalibData();
57 //_____________________________________________________________________________
58 AliVZEROReconstructor& AliVZEROReconstructor::operator =
59 (const AliVZEROReconstructor& /*reconstructor*/)
61 // assignment operator
63 Fatal("operator =", "assignment operator not implemented");
67 //_____________________________________________________________________________
68 AliVZEROReconstructor::~AliVZEROReconstructor()
73 delete fESDVZEROfriend;
76 //_____________________________________________________________________________
77 void AliVZEROReconstructor::Init()
81 fESDVZERO = new AliESDVZERO;
82 fESDVZEROfriend = new AliESDVZEROfriend;
84 GetCollisionMode(); // fCollisionMode =1 for Pb-Pb simulated data
87 //______________________________________________________________________
88 void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
90 // converts RAW to digits - pedestal is subtracted
93 AliError("No digits tree!");
97 TClonesArray* digitsArray = new TClonesArray("AliVZEROdigit");
98 digitsTree->Branch("VZERODigit", &digitsArray);
100 fESDVZEROfriend->Reset();
103 AliVZERORawStream rawStream(rawReader);
104 if (rawStream.Next()) {
105 Int_t ADC_max[64], adc[64], time[64], width[64], BBFlag[64], BGFlag[64], integrator[64];
106 for(Int_t i=0; i<64; i++) {
107 // Search for the maximum charge in the train of 21 LHC clocks
108 // regardless of the integrator which has been operated:
111 for(Int_t iClock=0; iClock<21; iClock++){
112 if((Int_t)rawStream.GetPedestal(i,iClock) > ADC_max[i])
113 {ADC_max[i]=(Int_t)rawStream.GetPedestal(i,iClock);
116 // Convert i (FEE channel numbering) to j (aliroot channel numbering)
117 Int_t j = rawStream.GetOfflineChannel(i);
119 time[j] = rawStream.GetTime(i);
120 width[j] = rawStream.GetWidth(i);
121 BBFlag[j] = rawStream.GetBBFlag(i,imax);
122 BGFlag[j] = rawStream.GetBGFlag(i,imax);
123 integrator[j] = rawStream.GetIntegratorFlag(i,imax);
125 // Filling the esd friend object
126 fESDVZEROfriend->SetBBScalers(j,rawStream.GetBBScalers(i));
127 fESDVZEROfriend->SetBGScalers(j,rawStream.GetBGScalers(i));
128 for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++) {
129 fESDVZEROfriend->SetChargeMB(j,iBunch,rawStream.GetChargeMB(i,iBunch));
130 fESDVZEROfriend->SetIntMBFlag(j,iBunch,rawStream.GetIntMBFlag(i,iBunch));
131 fESDVZEROfriend->SetBBMBFlag(j,iBunch,rawStream.GetBBMBFlag(i,iBunch));
132 fESDVZEROfriend->SetBGMBFlag(j,iBunch,rawStream.GetBGMBFlag(i,iBunch));
134 for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
135 fESDVZEROfriend->SetPedestal(j,iEv,rawStream.GetPedestal(i,iEv));
136 fESDVZEROfriend->SetIntegratorFlag(j,iEv,rawStream.GetIntegratorFlag(i,iEv));
137 fESDVZEROfriend->SetBBFlag(j,iEv,rawStream.GetBBFlag(i,iEv));
138 fESDVZEROfriend->SetBGFlag(j,iEv,rawStream.GetBGFlag(i,iEv));
140 fESDVZEROfriend->SetTime(j,rawStream.GetTime(i));
141 fESDVZEROfriend->SetWidth(j,rawStream.GetWidth(i));
144 // Filling the esd friend object
145 fESDVZEROfriend->SetTriggerInputs(rawStream.GetTriggerInputs());
146 fESDVZEROfriend->SetTriggerInputsMask(rawStream.GetTriggerInputsMask());
148 for(Int_t iScaler = 0; iScaler < AliESDVZEROfriend::kNScalers; iScaler++)
149 fESDVZEROfriend->SetTriggerScalers(iScaler,rawStream.GetTriggerScalers(iScaler));
151 for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++)
152 fESDVZEROfriend->SetBunchNumbersMB(iBunch,rawStream.GetBunchNumbersMB(iBunch));
155 // Channels(aliroot numbering) will be ordered in the tree
156 for(Int_t iChannel = 0; iChannel < 64; iChannel++) {
157 new ((*digitsArray)[digitsArray->GetEntriesFast()])
158 AliVZEROdigit(iChannel, adc[iChannel], time[iChannel],
159 width[iChannel], BBFlag[iChannel], BGFlag[iChannel],integrator[iChannel]);
166 //______________________________________________________________________
167 void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /*clustersTree*/,
168 AliESDEvent* esd) const
170 // fills multiplicities to the ESD
173 AliError("No digits tree!");
177 TClonesArray* digitsArray = NULL;
178 TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
179 digitBranch->SetAddress(&digitsArray);
181 Short_t Multiplicity[64];
189 for (Int_t i=0; i<64; i++){
198 // loop over VZERO entries to get multiplicity
199 Int_t nEntries = (Int_t)digitsTree->GetEntries();
200 for (Int_t e=0; e<nEntries; e++) {
201 digitsTree->GetEvent(e);
203 Int_t nDigits = digitsArray->GetEntriesFast();
205 for (Int_t d=0; d<nDigits; d++) {
206 AliVZEROdigit* digit = (AliVZEROdigit*)digitsArray->At(d);
207 Int_t pmNumber = digit->PMNumber();
208 // Pedestal retrieval and suppression:
209 Int_t pedestal = int(fCalibData->GetPedestal(d));
210 adc[pmNumber] = (Short_t) digit->ADC() - pedestal;
211 time[pmNumber] = (Short_t) digit->Time();
212 width[pmNumber] = (Short_t) digit->Width();
213 BBFlag[pmNumber]= digit->BBFlag();
214 BGFlag[pmNumber]= digit->BGFlag();
215 // printf("PM = %d, MIP per ADC channel = %f \n",pmNumber, fCalibData->GetMIPperADC(pmNumber));
216 //AliInfo(Form("PM = %d, ADC = %d TDC %d",pmNumber, digit->ADC(),digit->Time()));
217 // cut of ADC at 1MIP/2
218 if(fCollisionMode >0) {
220 if (adc[pmNumber] > (int(MIP) /2) ) mult[pmNumber] += float(adc[pmNumber])*(1.0/MIP) ;
223 if (adc[pmNumber] > (int(1.0/fCalibData->GetMIPperADC(pmNumber)) /2) )
224 mult[pmNumber] += float(adc[pmNumber])*fCalibData->GetMIPperADC(pmNumber);
226 } // end of loop over digits
227 } // end of loop over events in digits tree
229 for (Int_t j=0; j<64; j++) Multiplicity[j] = short(mult[j]+0.5);
231 fESDVZERO->SetMultiplicity(Multiplicity);
232 fESDVZERO->SetADC(adc);
233 fESDVZERO->SetTime(time);
234 fESDVZERO->SetWidth(width);
235 fESDVZERO->SetBBFlag(BBFlag);
236 fESDVZERO->SetBGFlag(BGFlag);
238 // now get the trigger mask
240 AliVZEROTriggerMask *TriggerMask = new AliVZEROTriggerMask();
241 TriggerMask->SetAdcThreshold(10.0/2.0);
242 TriggerMask->SetTimeWindowWidthBBA(50);
243 TriggerMask->SetTimeWindowWidthBGA(20);
244 TriggerMask->SetTimeWindowWidthBBC(50);
245 TriggerMask->SetTimeWindowWidthBGC(20);
246 TriggerMask->FillMasks(digitsTree,digitsArray);
248 fESDVZERO->SetBBtriggerV0A(TriggerMask->GetBBtriggerV0A());
249 fESDVZERO->SetBGtriggerV0A(TriggerMask->GetBGtriggerV0A());
250 fESDVZERO->SetBBtriggerV0C(TriggerMask->GetBBtriggerV0C());
251 fESDVZERO->SetBGtriggerV0C(TriggerMask->GetBGtriggerV0C());
254 AliDebug(1, Form("Writing VZERO data to ESD tree"));
255 esd->SetVZEROData(fESDVZERO);
259 AliESDfriend *fr = (AliESDfriend*)esd->FindListObject("AliESDfriend");
261 AliDebug(1, Form("Writing VZERO friend data to ESD tree"));
262 fr->SetVZEROfriend(fESDVZEROfriend);
267 //_____________________________________________________________________________
268 AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
272 Bool_t deleteManager = kFALSE;
274 AliCDBManager *manager = AliCDBManager::Instance();
275 AliCDBStorage *defstorage = manager->GetDefaultStorage();
277 if(!defstorage || !(defstorage->Contains("VZERO"))){
278 AliWarning("No default storage set or default storage doesn't contain VZERO!");
279 manager->SetDefaultStorage(uri);
280 deleteManager = kTRUE;
283 AliCDBStorage *storage = manager->GetDefaultStorage();
286 AliCDBManager::Instance()->UnsetDefaultStorage();
287 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
293 //____________________________________________________________________________
294 void AliVZEROReconstructor::GetCollisionMode()
296 // Retrieves the collision mode from GRP data
298 // Initialization of the GRP entry
300 Int_t run = AliCDBManager::Instance()->GetRun();
302 // printf("\n ++++++ Run Number retrieved as %d \n",run);
304 AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data",run);
305 AliGRPObject* grpData = 0x0;
308 TMap* m = dynamic_cast<TMap*>(entry->GetObject()); // old GRP entry
311 grpData = new AliGRPObject();
312 grpData->ReadValuesFromMap(m);
315 grpData = dynamic_cast<AliGRPObject*>(entry->GetObject()); // new GRP entry
318 AliCDBManager::Instance()->UnloadFromCache("GRP/GRP/Data");
321 if(!grpData) { AliError("No GRP entry found in OCDB!");
324 // Retrieval of simulated collision mode
326 TString beamType = grpData->GetBeamType();
327 if(beamType==AliGRPObject::GetInvalidString()){
328 AliError("GRP/GRP/Data entry: missing value for the beam type !");
329 AliError("\t VZERO cannot retrieve beam type\n");
333 if( (beamType.CompareTo("P-P") ==0) || (beamType.CompareTo("p-p") ==0) ){
336 else if( (beamType.CompareTo("Pb-Pb") ==0) || (beamType.CompareTo("A-A") ==0) ){
340 fBeamEnergy = grpData->GetBeamEnergy();
341 if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
342 AliError("GRP/GRP/Data entry: missing value for the beam energy ! Using 0");
346 // printf("\n ++++++ Beam type and collision mode retrieved as %s %d @ %1.3f GeV ++++++\n\n",beamType.Data(), fCollisionMode, fBeamEnergy);
350 //_____________________________________________________________________________
351 AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
353 // Gets calibration object for VZERO set
355 AliCDBManager *man = AliCDBManager::Instance();
357 AliCDBEntry *entry=0;
359 entry = man->Get("VZERO/Calib/Data");
362 // AliWarning("Load of calibration data from default storage failed!");
363 // AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
364 // Int_t runNumber = man->GetRun();
365 // entry = man->GetStorage("local://$ALICE_ROOT/OCDB")
366 // ->Get("VZERO/Calib/Data",runNumber);
370 // Retrieval of data in directory VZERO/Calib/Data:
372 AliVZEROCalibData *calibdata = 0;
374 if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
375 if (!calibdata) AliFatal("No calibration data from calibration database !");