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b0d2c2d3 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | /// // | |
20 | /// class for VZERO reconstruction // | |
21 | /// // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
35b120ff | 24 | #include "AliRunLoader.h" |
2eb38194 | 25 | #include "AliRawReader.h" |
b0d2c2d3 | 26 | #include "AliVZEROReconstructor.h" |
2eb38194 | 27 | #include "AliVZERORawStream.h" |
b14e6eb4 | 28 | #include "AliESDEvent.h" |
a055ee24 | 29 | #include "AliVZEROTriggerMask.h" |
b0d2c2d3 | 30 | |
b0d2c2d3 | 31 | ClassImp(AliVZEROReconstructor) |
32 | ||
ce7090f5 | 33 | //_____________________________________________________________________________ |
cb2228e6 | 34 | AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(), |
35b120ff | 35 | fESDVZERO(0x0), |
36 | fESD(0x0), | |
cb2228e6 | 37 | fCalibData(GetCalibData()) |
ce7090f5 | 38 | { |
39 | // Default constructor | |
ce7090f5 | 40 | // Get calibration data |
41 | ||
35b120ff | 42 | // fCalibData = GetCalibData(); |
ce7090f5 | 43 | } |
44 | ||
45 | ||
46 | //_____________________________________________________________________________ | |
47 | AliVZEROReconstructor& AliVZEROReconstructor::operator = | |
48 | (const AliVZEROReconstructor& /*reconstructor*/) | |
49 | { | |
50 | // assignment operator | |
51 | ||
52 | Fatal("operator =", "assignment operator not implemented"); | |
53 | return *this; | |
54 | } | |
55 | ||
56 | //_____________________________________________________________________________ | |
57 | AliVZEROReconstructor::~AliVZEROReconstructor() | |
58 | { | |
59 | // destructor | |
35b120ff | 60 | delete fESDVZERO; |
61 | ||
62 | } | |
63 | ||
64 | //_____________________________________________________________________________ | |
d76c31f4 | 65 | void AliVZEROReconstructor::Init() |
35b120ff | 66 | { |
ef314913 | 67 | // initializer |
ce7090f5 | 68 | |
35b120ff | 69 | fESDVZERO = new AliESDVZERO; |
70 | } | |
71 | ||
72 | //______________________________________________________________________ | |
2e0ee64a | 73 | void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const |
35b120ff | 74 | { |
9d62c464 | 75 | // converts RAW to digits |
ef314913 | 76 | |
2e0ee64a | 77 | if (!digitsTree) { |
78 | AliError("No digits tree!"); | |
79 | return; | |
80 | } | |
35b120ff | 81 | |
2e0ee64a | 82 | TClonesArray* digitsArray = new TClonesArray("AliVZEROdigit"); |
83 | digitsTree->Branch("VZERODigit", &digitsArray); | |
84 | ||
85 | rawReader->Reset(); | |
86 | AliVZERORawStream rawStream(rawReader); | |
9d62c464 | 87 | if (rawStream.Next()) { |
88 | Int_t ADC_max[64], adc[64], time[64]; | |
89 | for(Int_t i=0; i<64; i++) { | |
90 | // Search for the maximun charge in the train of 21 LHC clocks | |
91 | // regardless of the integrator which has been operated: | |
92 | ADC_max[i] = 0; | |
93 | for(Int_t iClock=0; iClock<21; iClock++){ | |
94 | if((Int_t)rawStream.GetPedestal(i,iClock) > ADC_max[i]) | |
95 | {ADC_max[i]=(Int_t)rawStream.GetPedestal(i,iClock);} | |
96 | } | |
97 | // Convert i (FEE channel numbering) to j (aliroot channel numbering) | |
98 | Int_t j = rawStream.GetOfflineChannel(i); | |
99 | adc[j] = ADC_max[i]; | |
100 | time[j] = rawStream.GetTime(i); | |
101 | } | |
102 | // Channels(aliroot numbering) will be ordered in the tree | |
103 | for(Int_t iChannel = 0; iChannel < 64; iChannel++) { | |
104 | new ((*digitsArray)[digitsArray->GetEntriesFast()]) | |
105 | AliVZEROdigit(iChannel,adc[iChannel],time[iChannel]); | |
106 | } | |
2e0ee64a | 107 | } |
108 | ||
109 | digitsTree->Fill(); | |
110 | } | |
111 | ||
112 | //______________________________________________________________________ | |
113 | void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /*clustersTree*/, | |
b14e6eb4 | 114 | AliESDEvent* esd) const |
2e0ee64a | 115 | { |
ef314913 | 116 | // fills multiplicities to the ESD |
117 | ||
2e0ee64a | 118 | if (!digitsTree) { |
119 | AliError("No digits tree!"); | |
120 | return; | |
121 | } | |
a055ee24 | 122 | |
2e0ee64a | 123 | TClonesArray* digitsArray = NULL; |
124 | TBranch* digitBranch = digitsTree->GetBranch("VZERODigit"); | |
125 | digitBranch->SetAddress(&digitsArray); | |
35b120ff | 126 | |
a055ee24 | 127 | const Float_t mip0=110.0; |
128 | Short_t Multiplicity[64]; | |
129 | Float_t mult[64]; | |
28fdf12c | 130 | Short_t adc[64]; |
131 | Short_t time[64]; | |
ef314913 | 132 | Float_t mip[64]; |
35b120ff | 133 | for (Int_t i=0; i<64; i++){ |
ef314913 | 134 | adc[i] = 0; |
a055ee24 | 135 | mip[i] = mip0; |
136 | mult[i]= 0.0; | |
137 | } | |
35b120ff | 138 | |
a055ee24 | 139 | // loop over VZERO entries to get multiplicity |
2e0ee64a | 140 | Int_t nEntries = (Int_t)digitsTree->GetEntries(); |
35b120ff | 141 | for (Int_t e=0; e<nEntries; e++) { |
2e0ee64a | 142 | digitsTree->GetEvent(e); |
35b120ff | 143 | |
2e0ee64a | 144 | Int_t nDigits = digitsArray->GetEntriesFast(); |
35b120ff | 145 | |
146 | for (Int_t d=0; d<nDigits; d++) { | |
2e0ee64a | 147 | AliVZEROdigit* digit = (AliVZEROdigit*)digitsArray->At(d); |
ef314913 | 148 | Int_t pmNumber = digit->PMNumber(); |
28fdf12c | 149 | adc[pmNumber] = (Short_t) digit->ADC(); |
150 | time[pmNumber] = (Short_t) digit->Time(); | |
59063a18 | 151 | // cut of ADC at MIP/2 |
a055ee24 | 152 | if (adc[pmNumber] > (mip[pmNumber]/2)) |
153 | mult[pmNumber] += float(adc[pmNumber])/mip[pmNumber]; | |
35b120ff | 154 | } // end of loop over digits |
35b120ff | 155 | } // end of loop over events in digits tree |
156 | ||
a055ee24 | 157 | for (Int_t j=0; j<64; j++) Multiplicity[j] = short(mult[j]+0.5); |
158 | fESDVZERO->SetMultiplicity(Multiplicity); | |
28fdf12c | 159 | fESDVZERO->SetADC(adc); |
160 | fESDVZERO->SetTime(time); | |
a055ee24 | 161 | |
162 | // now get the trigger mask | |
163 | ||
164 | AliVZEROTriggerMask *TriggerMask = new AliVZEROTriggerMask(); | |
165 | TriggerMask->SetAdcThreshold(mip0/2.0); | |
166 | TriggerMask->SetTimeWindowWidthBBA(50); | |
167 | TriggerMask->SetTimeWindowWidthBGA(20); | |
168 | TriggerMask->SetTimeWindowWidthBBC(50); | |
169 | TriggerMask->SetTimeWindowWidthBGC(20); | |
170 | TriggerMask->FillMasks(digitsTree,digitsArray); | |
171 | ||
172 | fESDVZERO->SetBBtriggerV0A(TriggerMask->GetBBtriggerV0A()); | |
173 | fESDVZERO->SetBGtriggerV0A(TriggerMask->GetBGtriggerV0A()); | |
174 | fESDVZERO->SetBBtriggerV0C(TriggerMask->GetBBtriggerV0C()); | |
175 | fESDVZERO->SetBGtriggerV0C(TriggerMask->GetBGtriggerV0C()); | |
35b120ff | 176 | |
2e0ee64a | 177 | if (esd) { |
a055ee24 | 178 | AliDebug(1, Form("Writing VZERO data to ESD tree")); |
179 | esd->SetVZEROData(fESDVZERO); | |
2e0ee64a | 180 | } |
35b120ff | 181 | } |
182 | ||
ce7090f5 | 183 | //_____________________________________________________________________________ |
184 | AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri) | |
185 | { | |
ef314913 | 186 | // Sets the storage |
187 | ||
ce7090f5 | 188 | Bool_t deleteManager = kFALSE; |
189 | ||
190 | AliCDBManager *manager = AliCDBManager::Instance(); | |
191 | AliCDBStorage *defstorage = manager->GetDefaultStorage(); | |
192 | ||
193 | if(!defstorage || !(defstorage->Contains("VZERO"))){ | |
194 | AliWarning("No default storage set or default storage doesn't contain VZERO!"); | |
195 | manager->SetDefaultStorage(uri); | |
196 | deleteManager = kTRUE; | |
197 | } | |
198 | ||
199 | AliCDBStorage *storage = manager->GetDefaultStorage(); | |
200 | ||
201 | if(deleteManager){ | |
202 | AliCDBManager::Instance()->UnsetDefaultStorage(); | |
203 | defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy() | |
204 | } | |
205 | ||
206 | return storage; | |
207 | } | |
208 | ||
209 | //_____________________________________________________________________________ | |
210 | AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const | |
211 | { | |
ef314913 | 212 | // Gets calibration object for VZERO set |
ce7090f5 | 213 | |
c0b82b5a | 214 | AliCDBManager *man = AliCDBManager::Instance(); |
ce7090f5 | 215 | |
c0b82b5a | 216 | AliCDBEntry *entry=0; |
217 | ||
218 | entry = man->Get("VZERO/Calib/Data"); | |
219 | ||
94a600a1 | 220 | // if(!entry){ |
221 | // AliWarning("Load of calibration data from default storage failed!"); | |
222 | // AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)"); | |
223 | // Int_t runNumber = man->GetRun(); | |
224 | // entry = man->GetStorage("local://$ALICE_ROOT") | |
225 | // ->Get("VZERO/Calib/Data",runNumber); | |
226 | // | |
227 | // } | |
c0b82b5a | 228 | |
229 | // Retrieval of data in directory VZERO/Calib/Data: | |
230 | ||
c0b82b5a | 231 | AliVZEROCalibData *calibdata = 0; |
232 | ||
233 | if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject(); | |
94a600a1 | 234 | if (!calibdata) AliFatal("No calibration data from calibration database !"); |
ce7090f5 | 235 | |
236 | return calibdata; | |
237 | } |