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 "AliVZEROReconstructor.h"
27 #include "AliVZERORawStream.h"
30 ClassImp(AliVZEROReconstructor)
32 //_____________________________________________________________________________
33 AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
37 fCalibData(GetCalibData())
39 // Default constructor
40 // Get calibration data
42 // fCalibData = GetCalibData();
46 //_____________________________________________________________________________
47 AliVZEROReconstructor& AliVZEROReconstructor::operator =
48 (const AliVZEROReconstructor& /*reconstructor*/)
50 // assignment operator
52 Fatal("operator =", "assignment operator not implemented");
56 //_____________________________________________________________________________
57 AliVZEROReconstructor::~AliVZEROReconstructor()
64 //_____________________________________________________________________________
65 void AliVZEROReconstructor::Init(AliRunLoader* runLoader)
69 fRunLoader = runLoader;
70 fESDVZERO = new AliESDVZERO;
73 //______________________________________________________________________
74 void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
79 AliError("No digits tree!");
83 TClonesArray* digitsArray = new TClonesArray("AliVZEROdigit");
84 digitsTree->Branch("VZERODigit", &digitsArray);
87 AliVZERORawStream rawStream(rawReader);
88 if (rawStream.Next()) {
89 for(Int_t iChannel = 0; iChannel < 64; iChannel++) {
90 Int_t adc = rawStream.GetADC(iChannel);
91 Int_t time = rawStream.GetTime(iChannel);
92 new ((*digitsArray)[digitsArray->GetEntriesFast()])
93 AliVZEROdigit(iChannel,adc,time);
100 //______________________________________________________________________
101 void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /*clustersTree*/,
104 // fills multiplicities to the ESD
107 AliError("No digits tree!");
111 TClonesArray* digitsArray = NULL;
112 TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
113 digitBranch->SetAddress(&digitsArray);
119 Float_t adcV0A = 0.0;
120 Float_t adcV0C = 0.0;
128 for (Int_t i=0; i<64; i++){
131 for (Int_t j=0; j<4; j++){
137 // loop over VZERO entries
138 Int_t nEntries = (Int_t)digitsTree->GetEntries();
139 for (Int_t e=0; e<nEntries; e++) {
140 digitsTree->GetEvent(e);
142 Int_t nDigits = digitsArray->GetEntriesFast();
144 for (Int_t d=0; d<nDigits; d++) {
145 AliVZEROdigit* digit = (AliVZEROdigit*)digitsArray->At(d);
146 Int_t pmNumber = digit->PMNumber();
147 adc[pmNumber] = digit->ADC();
148 // cut of ADC at MIP/2
149 if (adc[pmNumber] > (mip[pmNumber]/2)) {
151 if (pmNumber<=7) multV0C[0]=multV0C[0]+ float(adc[pmNumber])/mip[pmNumber];
152 if (pmNumber>=8 && pmNumber<=15) multV0C[1]=multV0C[1]+ float(adc[pmNumber])/mip[pmNumber];
153 if (pmNumber>=16 && pmNumber<=23) multV0C[2]=multV0C[2]+ float(adc[pmNumber])/mip[pmNumber];
154 if (pmNumber>=24 && pmNumber<=31) multV0C[3]=multV0C[3]+ float(adc[pmNumber])/mip[pmNumber];
155 adcV0C = adcV0C + float(adc[pmNumber])/mip[pmNumber];
159 if (pmNumber>=32 && pmNumber<=39) multV0A[0]=multV0A[0]+ float(adc[pmNumber])/mip[pmNumber];
160 if (pmNumber>=40 && pmNumber<=47) multV0A[1]=multV0A[1]+ float(adc[pmNumber])/mip[pmNumber];
161 if (pmNumber>=48 && pmNumber<=55) multV0A[2]=multV0A[2]+ float(adc[pmNumber])/mip[pmNumber];
162 if (pmNumber>=56 && pmNumber<=63) multV0A[3]=multV0A[3]+ float(adc[pmNumber])/mip[pmNumber];
163 adcV0A = adcV0A + float(adc[pmNumber])/mip[pmNumber];
167 } // end of loop over digits
169 } // end of loop over events in digits tree
171 mTotV0A = int(adcV0A + 0.5);
172 mTotV0C = int(adcV0C + 0.5);
173 for (Int_t j=0; j<4; j++){
174 mRingV0A[j] = int(multV0A[j] + 0.5);
175 mRingV0C[j] = int(multV0C[j] + 0.5);}
177 AliDebug(1,Form("VZERO multiplicities : %d (V0A) %d (V0C)", mTotV0A, mTotV0C));
178 AliDebug(1,Form("Number of PMs fired : %d (V0A) %d (V0C)", nbPMV0A, nbPMV0C));
180 fESDVZERO->SetNbPMV0A(nbPMV0A);
181 fESDVZERO->SetNbPMV0C(nbPMV0C);
182 fESDVZERO->SetMTotV0A(mTotV0A);
183 fESDVZERO->SetMTotV0C(mTotV0C);
184 fESDVZERO->SetMRingV0A(mRingV0A);
185 fESDVZERO->SetMRingV0C(mRingV0C);
188 AliDebug(1, Form("Writing VZERO data to ESD tree"));
189 esd->SetVZEROData(fESDVZERO);
193 //_____________________________________________________________________________
194 AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
198 Bool_t deleteManager = kFALSE;
200 AliCDBManager *manager = AliCDBManager::Instance();
201 AliCDBStorage *defstorage = manager->GetDefaultStorage();
203 if(!defstorage || !(defstorage->Contains("VZERO"))){
204 AliWarning("No default storage set or default storage doesn't contain VZERO!");
205 manager->SetDefaultStorage(uri);
206 deleteManager = kTRUE;
209 AliCDBStorage *storage = manager->GetDefaultStorage();
212 AliCDBManager::Instance()->UnsetDefaultStorage();
213 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
219 //_____________________________________________________________________________
220 AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
222 // Gets calibration object for VZERO set
224 AliCDBManager *man = AliCDBManager::Instance();
226 AliCDBEntry *entry=0;
228 entry = man->Get("VZERO/Calib/Data");
231 // AliWarning("Load of calibration data from default storage failed!");
232 // AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
233 // Int_t runNumber = man->GetRun();
234 // entry = man->GetStorage("local://$ALICE_ROOT")
235 // ->Get("VZERO/Calib/Data",runNumber);
239 // Retrieval of data in directory VZERO/Calib/Data:
241 AliVZEROCalibData *calibdata = 0;
243 if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
244 if (!calibdata) AliFatal("No calibration data from calibration database !");