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"
28 #include "AliESDEvent.h"
30 ClassImp(AliVZEROReconstructor)
32 //_____________________________________________________________________________
33 AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
36 fCalibData(GetCalibData())
38 // Default constructor
39 // Get calibration data
41 // fCalibData = GetCalibData();
45 //_____________________________________________________________________________
46 AliVZEROReconstructor& AliVZEROReconstructor::operator =
47 (const AliVZEROReconstructor& /*reconstructor*/)
49 // assignment operator
51 Fatal("operator =", "assignment operator not implemented");
55 //_____________________________________________________________________________
56 AliVZEROReconstructor::~AliVZEROReconstructor()
63 //_____________________________________________________________________________
64 void AliVZEROReconstructor::Init()
68 fESDVZERO = new AliESDVZERO;
71 //______________________________________________________________________
72 void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
76 // retrieval of calibration information
77 // Float_t adc_pedestal[128],adc_sigma[128];
78 // for(Int_t i=0; i<128; i++){ adc_pedestal[i] = fCalibData->GetPedestal(i);
79 // adc_sigma[i] = fCalibData->GetSigma(i);
80 // printf(" i = %d pedestal = %f sigma = %f \n\n",
81 // i, adc_pedestal[i], adc_sigma[i] );}
84 AliError("No digits tree!");
88 TClonesArray* digitsArray = new TClonesArray("AliVZEROdigit");
89 digitsTree->Branch("VZERODigit", &digitsArray);
92 AliVZERORawStream rawStream(rawReader);
93 if (rawStream.Next()) {
94 for(Int_t iChannel = 0; iChannel < 64; iChannel++) {
96 if(!rawStream.GetIntegratorFlag(iChannel,10))
97 {adc = rawStream.GetADC(iChannel) - Int_t(fCalibData->GetPedestal(iChannel));} //even integrator
99 {adc = rawStream.GetADC(iChannel) - Int_t(fCalibData->GetPedestal(iChannel+64));} // odd
100 Int_t time = rawStream.GetTime(iChannel);
101 if (adc >=0) new ((*digitsArray)[digitsArray->GetEntriesFast()])
102 AliVZEROdigit(iChannel,adc,time);
109 //______________________________________________________________________
110 void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /*clustersTree*/,
111 AliESDEvent* esd) const
113 // fills multiplicities to the ESD
116 AliError("No digits tree!");
120 TClonesArray* digitsArray = NULL;
121 TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
122 digitBranch->SetAddress(&digitsArray);
128 Float_t adcV0A = 0.0;
129 Float_t adcV0C = 0.0;
137 for (Int_t i=0; i<64; i++){
140 for (Int_t j=0; j<4; j++){
146 // loop over VZERO entries
147 Int_t nEntries = (Int_t)digitsTree->GetEntries();
148 for (Int_t e=0; e<nEntries; e++) {
149 digitsTree->GetEvent(e);
151 Int_t nDigits = digitsArray->GetEntriesFast();
153 for (Int_t d=0; d<nDigits; d++) {
154 AliVZEROdigit* digit = (AliVZEROdigit*)digitsArray->At(d);
155 Int_t pmNumber = digit->PMNumber();
156 adc[pmNumber] = digit->ADC();
157 // cut of ADC at MIP/2
158 if (adc[pmNumber] > (mip[pmNumber]/2)) {
160 if (pmNumber<=7) multV0C[0]=multV0C[0]+ float(adc[pmNumber])/mip[pmNumber];
161 if (pmNumber>=8 && pmNumber<=15) multV0C[1]=multV0C[1]+ float(adc[pmNumber])/mip[pmNumber];
162 if (pmNumber>=16 && pmNumber<=23) multV0C[2]=multV0C[2]+ float(adc[pmNumber])/mip[pmNumber];
163 if (pmNumber>=24 && pmNumber<=31) multV0C[3]=multV0C[3]+ float(adc[pmNumber])/mip[pmNumber];
164 adcV0C = adcV0C + float(adc[pmNumber])/mip[pmNumber];
168 if (pmNumber>=32 && pmNumber<=39) multV0A[0]=multV0A[0]+ float(adc[pmNumber])/mip[pmNumber];
169 if (pmNumber>=40 && pmNumber<=47) multV0A[1]=multV0A[1]+ float(adc[pmNumber])/mip[pmNumber];
170 if (pmNumber>=48 && pmNumber<=55) multV0A[2]=multV0A[2]+ float(adc[pmNumber])/mip[pmNumber];
171 if (pmNumber>=56 && pmNumber<=63) multV0A[3]=multV0A[3]+ float(adc[pmNumber])/mip[pmNumber];
172 adcV0A = adcV0A + float(adc[pmNumber])/mip[pmNumber];
176 } // end of loop over digits
178 } // end of loop over events in digits tree
180 mTotV0A = int(adcV0A + 0.5);
181 mTotV0C = int(adcV0C + 0.5);
182 for (Int_t j=0; j<4; j++){
183 mRingV0A[j] = int(multV0A[j] + 0.5);
184 mRingV0C[j] = int(multV0C[j] + 0.5);}
186 AliDebug(1,Form("VZERO multiplicities : %d (V0A) %d (V0C)", mTotV0A, mTotV0C));
187 AliDebug(1,Form("Number of PMs fired : %d (V0A) %d (V0C)", nbPMV0A, nbPMV0C));
189 fESDVZERO->SetNbPMV0A(nbPMV0A);
190 fESDVZERO->SetNbPMV0C(nbPMV0C);
191 fESDVZERO->SetMTotV0A(mTotV0A);
192 fESDVZERO->SetMTotV0C(mTotV0C);
193 fESDVZERO->SetMRingV0A(mRingV0A);
194 fESDVZERO->SetMRingV0C(mRingV0C);
197 AliDebug(1, Form("Writing VZERO data to ESD tree"));
198 esd->SetVZEROData(fESDVZERO);
202 //_____________________________________________________________________________
203 AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
207 Bool_t deleteManager = kFALSE;
209 AliCDBManager *manager = AliCDBManager::Instance();
210 AliCDBStorage *defstorage = manager->GetDefaultStorage();
212 if(!defstorage || !(defstorage->Contains("VZERO"))){
213 AliWarning("No default storage set or default storage doesn't contain VZERO!");
214 manager->SetDefaultStorage(uri);
215 deleteManager = kTRUE;
218 AliCDBStorage *storage = manager->GetDefaultStorage();
221 AliCDBManager::Instance()->UnsetDefaultStorage();
222 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
228 //_____________________________________________________________________________
229 AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
231 // Gets calibration object for VZERO set
233 AliCDBManager *man = AliCDBManager::Instance();
235 AliCDBEntry *entry=0;
237 entry = man->Get("VZERO/Calib/Data");
240 // AliWarning("Load of calibration data from default storage failed!");
241 // AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
242 // Int_t runNumber = man->GetRun();
243 // entry = man->GetStorage("local://$ALICE_ROOT")
244 // ->Get("VZERO/Calib/Data",runNumber);
248 // Retrieval of data in directory VZERO/Calib/Data:
250 AliVZEROCalibData *calibdata = 0;
252 if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
253 if (!calibdata) AliFatal("No calibration data from calibration database !");