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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 | // A singleton. This class should be used in the analysis stage to get | |
20 | // reconstructed objects: Digits, RecPoints, TrackSegments and RecParticles, | |
21 | // instead of directly reading them from galice.root file. | |
22 | // | |
23 | // MvL Feb 2006: | |
24 | // The AliEMCALLoader now holds the TClonesArray and TObjArray for reading | |
25 | // Hits, Dgits, SDigits and RecPoints. Filling is managed in the GetEvent() | |
26 | // method. | |
27 | // | |
28 | // Creation/writing of files is managed by the relevant parts of the | |
29 | // reconstruction software (AliEMCALDigitiser etx) | |
30 | // | |
31 | //*-- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (RRC KI & SUBATECH) | |
32 | //*-- Completely redesigned by Dmitri Peressounko March 2001 | |
33 | // | |
34 | //*-- YS June 2001 : renamed the original AliEMCALIndexToObject and make | |
35 | //*-- systematic usage of TFolders without changing the interface | |
36 | // | |
37 | //*-- Marco van Leeuwen, Jan 2006: complete revision to simplify reading | |
38 | //*-- and fit better in general ALICE scheme | |
39 | // | |
40 | ////////////////////////////////////////////////////////////////////////////// | |
41 | ||
42 | // --- ROOT system --- | |
43 | #include "TMath.h" | |
44 | #include "TTree.h" | |
45 | ||
46 | // --- Standard library --- | |
47 | ||
48 | // --- AliRoot header files --- | |
49 | #include "AliEMCALLoader.h" | |
50 | #include "AliLog.h" | |
51 | #include "AliCDBLocal.h" | |
52 | #include "AliCDBStorage.h" | |
53 | #include "AliCDBManager.h" | |
54 | #include "AliCDBEntry.h" | |
55 | #include "AliEMCALHit.h" | |
56 | ||
57 | ClassImp(AliEMCALLoader) | |
58 | ||
59 | const TString AliEMCALLoader::fgkECARecPointsBranchName("EMCALECARP");//Name for branch with ECA Reconstructed Points | |
60 | AliEMCALCalibData* AliEMCALLoader::fgCalibData = 0; //calibation data | |
61 | ||
62 | //____________________________________________________________________________ | |
63 | AliEMCALLoader::AliEMCALLoader() | |
64 | : fDebug(0), | |
65 | fHits(0), | |
66 | fDigits(0), | |
67 | fSDigits(0), | |
68 | fRecPoints(0) | |
69 | { | |
70 | //Default constructor for EMCAL Loader Class | |
71 | ||
72 | fDebug = 0; | |
73 | fHits = new TClonesArray("AliEMCALHit"); | |
74 | fDigits = new TClonesArray("AliEMCALDigit"); | |
75 | fSDigits = new TClonesArray("AliEMCALDigit"); | |
76 | fRecPoints = new TObjArray(); | |
77 | } | |
78 | ||
79 | //____________________________________________________________________________ | |
80 | AliEMCALLoader::AliEMCALLoader(const Char_t *detname,const Char_t *eventfoldername) | |
81 | : AliLoader(detname,eventfoldername), | |
82 | fDebug(0), | |
83 | fHits(0), | |
84 | fDigits(0), | |
85 | fSDigits(0), | |
86 | fRecPoints(0) | |
87 | { | |
88 | //Specific constructor for EMCAL Loader class | |
89 | ||
90 | fDebug=0; | |
91 | fHits = new TClonesArray("AliEMCALHit"); | |
92 | fDigits = new TClonesArray("AliEMCALDigit"); | |
93 | fSDigits = new TClonesArray("AliEMCALDigit"); | |
94 | fRecPoints = new TObjArray(); | |
95 | } | |
96 | ||
97 | //____________________________________________________________________________ | |
98 | AliEMCALLoader::AliEMCALLoader(const Char_t *name, TFolder *topfolder) | |
99 | : AliLoader(name,topfolder), | |
100 | fDebug(0), | |
101 | fHits(0), | |
102 | fDigits(0), | |
103 | fSDigits(0), | |
104 | fRecPoints(0) | |
105 | { | |
106 | //Specific constructor for EMCAL Loader class | |
107 | ||
108 | fDebug=0; | |
109 | fHits = new TClonesArray("AliEMCALHit"); | |
110 | fDigits = new TClonesArray("AliEMCALDigit"); | |
111 | fSDigits = new TClonesArray("AliEMCALDigit"); | |
112 | fRecPoints = new TObjArray(); | |
113 | } | |
114 | ||
115 | //____________________________________________________________________________ | |
116 | AliEMCALLoader::AliEMCALLoader(const AliEMCALLoader & obj) | |
117 | : AliLoader(obj), | |
118 | fDebug(obj.fDebug), | |
119 | fHits(obj.fHits), | |
120 | fDigits(obj.fDigits), | |
121 | fSDigits(obj.fSDigits), | |
122 | fRecPoints(obj.fRecPoints) | |
123 | { | |
124 | //copy ctor | |
125 | } | |
126 | ||
127 | //____________________________________________________________________________ | |
128 | AliEMCALLoader::~AliEMCALLoader() | |
129 | { | |
130 | // Disconnect trees and remove arrays | |
131 | if (TreeH()) | |
132 | TreeH()->SetBranchAddress(fDetectorName,0); | |
133 | if (TreeD()) | |
134 | TreeD()->SetBranchAddress(fDetectorName,0); | |
135 | if (TreeS()) | |
136 | TreeS()->SetBranchAddress(fDetectorName,0); | |
137 | if (TreeR()) | |
138 | TreeR()->SetBranchAddress(fgkECARecPointsBranchName,0); | |
139 | if (fHits) { | |
140 | fHits->Delete(); | |
141 | delete fHits; | |
142 | } | |
143 | delete fDigits; | |
144 | delete fSDigits; | |
145 | delete fRecPoints; | |
146 | } | |
147 | ||
148 | //____________________________________________________________________________ | |
149 | AliEMCALCalibData* AliEMCALLoader::CalibData() | |
150 | { | |
151 | // Check if the instance of AliEMCALCalibData exists, if not, create it if | |
152 | // the OCDB is available, and finally return it. | |
153 | ||
154 | if(!fgCalibData && (AliCDBManager::Instance()->IsDefaultStorageSet())) | |
155 | { | |
156 | AliCDBEntry *entry = (AliCDBEntry*) | |
157 | AliCDBManager::Instance()->Get("EMCAL/Calib/Data"); | |
158 | if (entry) fgCalibData = (AliEMCALCalibData*) entry->GetObject(); | |
159 | } | |
160 | ||
161 | if(!fgCalibData) | |
162 | AliFatal("Calibration parameters not found in CDB!"); | |
163 | ||
164 | return fgCalibData; | |
165 | ||
166 | } | |
167 | ||
168 | ||
169 | //____________________________________________________________________________ | |
170 | Int_t AliEMCALLoader::CalibrateRaw(Double_t energy, Int_t module, | |
171 | Int_t column, Int_t row) | |
172 | { | |
173 | // Convert energy into digitized amplitude for a cell relId | |
174 | // It is a user responsilibity to open CDB and set | |
175 | // AliEMCALCalibData object by the following operators: | |
176 | // | |
177 | // AliCDBLocal *loc = new AliCDBLocal("deCalibDB"); | |
178 | // AliEMCALCalibData* clb = (AliEMCALCalibData*)AliCDBStorage::Instance() | |
179 | // ->Get(path_to_calibdata,run_number); | |
180 | // AliEMCALGetter* gime = AliEMCALGetter::Instance("galice.root"); | |
181 | // gime->SetCalibData(clb); | |
182 | ||
183 | if (CalibData() == 0) | |
184 | Warning("CalibrateRaw","Calibration DB is not initiated!"); | |
185 | ||
186 | Float_t gainFactor = 0.00305;//0.0015; // width of one ADC channel in GeV | |
187 | Float_t pedestal = 0.009;//0.005; // pedestals | |
188 | ||
189 | if(CalibData()) { | |
190 | gainFactor = CalibData()->GetADCchannel (module,column,row); | |
191 | pedestal = CalibData()->GetADCpedestal(module,column,row); | |
192 | } | |
193 | ||
194 | Int_t amp = static_cast<Int_t>( (energy - pedestal) / gainFactor + 0.5 ) ; | |
195 | return amp; | |
196 | } | |
197 | ||
198 | //____________________________________________________________________________ | |
199 | Int_t AliEMCALLoader::GetEvent() | |
200 | { | |
201 | //Method to load all of the data | |
202 | //members of the EMCAL for a given | |
203 | //event from the Trees | |
204 | ||
205 | AliLoader::GetEvent(); // First call AliLoader to do all the groundwork | |
206 | ||
207 | // Now connect and fill TClonesArray | |
208 | ||
209 | // Hits | |
210 | TTree *treeH = TreeH(); | |
211 | ||
212 | if (treeH) { | |
213 | Int_t nEnt = treeH->GetEntries(); // TreeH has array of hits for every primary | |
214 | fHits->Clear(); | |
215 | Int_t index = 0; | |
216 | TClonesArray *tempArr = 0x0; | |
217 | TBranch * branchH = treeH->GetBranch(fDetectorName); | |
218 | branchH->SetAddress(&tempArr); | |
219 | for (Int_t iEnt = 0; iEnt < nEnt; iEnt++) { | |
220 | treeH->GetEntry(iEnt); | |
221 | Int_t nHit = tempArr->GetEntriesFast(); | |
222 | for (Int_t iHit = 0; iHit < nHit; iHit++) { | |
223 | new ((*fHits)[index]) AliEMCALHit(*((AliEMCALHit*)tempArr->At(iHit))); | |
224 | index++; | |
225 | } | |
226 | } | |
227 | branchH->ResetAddress(); | |
228 | if (tempArr) { | |
229 | tempArr->Delete(); | |
230 | delete tempArr; | |
231 | } | |
232 | } | |
233 | ||
234 | // SDigits | |
235 | TTree *treeS = TreeS(); | |
236 | if (treeS) { | |
237 | TBranch * branchS = treeS->GetBranch(fDetectorName); | |
238 | branchS->ResetAddress(); | |
239 | if (fSDigits) { | |
240 | fSDigits->Clear(); | |
241 | } | |
242 | branchS->SetAddress(&fSDigits); | |
243 | treeS->GetEvent(0); | |
244 | } | |
245 | ||
246 | // Digits | |
247 | TTree *treeD = TreeD(); | |
248 | if (treeD) { | |
249 | TBranch * branchD = treeD->GetBranch(fDetectorName); | |
250 | branchD->ResetAddress(); | |
251 | if (fDigits) { | |
252 | fDigits->Clear(); | |
253 | } | |
254 | branchD->SetAddress(&fDigits); | |
255 | treeD->GetEvent(0); | |
256 | } | |
257 | ||
258 | // RecPoints | |
259 | TTree *treeR = TreeR(); | |
260 | if (treeR) { | |
261 | TBranch * branchR = treeR->GetBranch(fgkECARecPointsBranchName); | |
262 | branchR->ResetAddress(); | |
263 | if (fRecPoints) { | |
264 | fRecPoints->Clear(); | |
265 | } | |
266 | branchR->SetAddress(&fRecPoints); | |
267 | treeR->GetEvent(0); | |
268 | } | |
269 | ||
270 | return 0; | |
271 | } |