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 //_________________________________________________________________________
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.
24 // The AliEMCALLoader now holds the TClonesArray and TObjArray for reading
25 // Hits, Dgits, SDigits and RecPoints. Filling is managed in the GetEvent()
28 // Creation/writing of files is managed by the relevant parts of the
29 // reconstruction software (AliEMCALDigitiser etx)
31 //*-- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (RRC KI & SUBATECH)
32 //*-- Completely redesigned by Dmitri Peressounko March 2001
34 //*-- YS June 2001 : renamed the original AliEMCALIndexToObject and make
35 //*-- systematic usage of TFolders without changing the interface
37 //*-- Marco van Leeuwen, Jan 2006: complete revision to simplify reading
38 //*-- and fit better in general ALICE scheme
40 //////////////////////////////////////////////////////////////////////////////
42 // --- ROOT system ---
46 // --- Standard library ---
48 // --- AliRoot header files ---
49 #include "AliEMCALLoader.h"
51 #include "AliCDBLocal.h"
52 #include "AliCDBStorage.h"
53 #include "AliCDBManager.h"
54 #include "AliCDBEntry.h"
55 #include "AliEMCALHit.h"
57 ClassImp(AliEMCALLoader)
59 const TString AliEMCALLoader::fgkECARecPointsBranchName("EMCALECARP");//Name for branch with ECA Reconstructed Points
60 AliEMCALCalibData* AliEMCALLoader::fgCalibData = 0; //calibation data
62 //____________________________________________________________________________
63 AliEMCALLoader::AliEMCALLoader()
70 //Default constructor for EMCAL Loader Class
73 fHits = new TClonesArray("AliEMCALHit");
74 fDigits = new TClonesArray("AliEMCALDigit");
75 fSDigits = new TClonesArray("AliEMCALDigit");
76 fRecPoints = new TObjArray();
79 //____________________________________________________________________________
80 AliEMCALLoader::AliEMCALLoader(const Char_t *detname,const Char_t *eventfoldername)
81 : AliLoader(detname,eventfoldername),
88 //Specific constructor for EMCAL Loader class
91 fHits = new TClonesArray("AliEMCALHit");
92 fDigits = new TClonesArray("AliEMCALDigit");
93 fSDigits = new TClonesArray("AliEMCALDigit");
94 fRecPoints = new TObjArray();
97 //____________________________________________________________________________
98 AliEMCALLoader::AliEMCALLoader(const Char_t *name, TFolder *topfolder)
99 : AliLoader(name,topfolder),
106 //Specific constructor for EMCAL Loader class
109 fHits = new TClonesArray("AliEMCALHit");
110 fDigits = new TClonesArray("AliEMCALDigit");
111 fSDigits = new TClonesArray("AliEMCALDigit");
112 fRecPoints = new TObjArray();
115 //____________________________________________________________________________
116 AliEMCALLoader::~AliEMCALLoader()
118 // Disconnect trees and remove arrays
120 TreeH()->SetBranchAddress(fDetectorName,0);
122 TreeD()->SetBranchAddress(fDetectorName,0);
124 TreeS()->SetBranchAddress(fDetectorName,0);
126 TreeR()->SetBranchAddress(fgkECARecPointsBranchName,0);
136 //____________________________________________________________________________
137 AliEMCALCalibData* AliEMCALLoader::CalibData()
139 // Check if the instance of AliEMCALCalibData exists, if not, create it if
140 // the OCDB is available, and finally return it.
142 if(!fgCalibData && (AliCDBManager::Instance()->IsDefaultStorageSet()))
144 AliCDBEntry *entry = (AliCDBEntry*)
145 AliCDBManager::Instance()->Get("EMCAL/Calib/Data");
146 if (entry) fgCalibData = (AliEMCALCalibData*) entry->GetObject();
150 AliFatal("Calibration parameters not found in CDB!");
157 //____________________________________________________________________________
158 Int_t AliEMCALLoader::CalibrateRaw(Double_t energy, Int_t module,
159 Int_t column, Int_t row)
161 // Convert energy into digitized amplitude for a cell relId
162 // It is a user responsilibity to open CDB and set
163 // AliEMCALCalibData object by the following operators:
165 // AliCDBLocal *loc = new AliCDBLocal("deCalibDB");
166 // AliEMCALCalibData* clb = (AliEMCALCalibData*)AliCDBStorage::Instance()
167 // ->Get(path_to_calibdata,run_number);
168 // AliEMCALGetter* gime = AliEMCALGetter::Instance("galice.root");
169 // gime->SetCalibData(clb);
171 if (CalibData() == 0)
172 Warning("CalibrateRaw","Calibration DB is not initiated!");
174 Float_t gainFactor = 0.00305;//0.0015; // width of one ADC channel in GeV
175 Float_t pedestal = 0.009;//0.005; // pedestals
178 gainFactor = CalibData()->GetADCchannel (module,column,row);
179 pedestal = CalibData()->GetADCpedestal(module,column,row);
182 Int_t amp = static_cast<Int_t>( (energy - pedestal) / gainFactor + 0.5 ) ;
186 //____________________________________________________________________________
187 Int_t AliEMCALLoader::GetEvent()
189 //Method to load all of the data
190 //members of the EMCAL for a given
191 //event from the Trees
193 AliLoader::GetEvent(); // First call AliLoader to do all the groundwork
195 // Now connect and fill TClonesArray
198 TTree *treeH = TreeH();
201 Int_t nEnt = treeH->GetEntries(); // TreeH has array of hits for every primary
204 TClonesArray *tempArr = 0x0;
205 TBranch * branchH = treeH->GetBranch(fDetectorName);
206 branchH->SetAddress(&tempArr);
207 for (Int_t iEnt = 0; iEnt < nEnt; iEnt++) {
208 treeH->GetEntry(iEnt);
209 Int_t nHit = tempArr->GetEntriesFast();
210 for (Int_t iHit = 0; iHit < nHit; iHit++) {
211 new ((*fHits)[index]) AliEMCALHit(*((AliEMCALHit*)tempArr->At(iHit)));
215 branchH->ResetAddress();
223 TTree *treeS = TreeS();
225 TBranch * branchS = treeS->GetBranch(fDetectorName);
226 branchS->ResetAddress();
230 branchS->SetAddress(&fSDigits);
235 TTree *treeD = TreeD();
237 TBranch * branchD = treeD->GetBranch(fDetectorName);
238 branchD->ResetAddress();
242 branchD->SetAddress(&fDigits);
247 TTree *treeR = TreeR();
249 TBranch * branchR = treeR->GetBranch(fgkECARecPointsBranchName);
250 branchR->ResetAddress();
254 branchR->SetAddress(&fRecPoints);