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4a66240a | 1 | /************************************************************************** |
2 | * Copyright(c) 2007-2009, 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 | // Base Plane Efficiency class for ITS | |
17 | // Specific subdetector implementation is done in | |
18 | // AliITSPlaneEffSPD | |
19 | // AliITSPlaneEffSDD | |
20 | // AliITSPlaneEffSSD | |
21 | // | |
22 | // Author: G.E. Bruno | |
23 | // giuseppe.bruno@ba.infn.it | |
24 | // | |
25 | /////////////////////////////////////////////////////////////////////////// | |
26 | ||
27 | /* $Id$ */ | |
28 | ||
29 | #include <TMath.h> | |
30 | #include "AliITSPlaneEff.h" | |
31 | #include "AliLog.h" | |
32 | #include "AliCDBManager.h" | |
33 | #include "AliCDBStorage.h" | |
34 | ||
35 | ClassImp(AliITSPlaneEff) | |
36 | //______________________________________________________________________ | |
37 | AliITSPlaneEff::AliITSPlaneEff(): TObject(), | |
38 | fRunNumber(0), | |
39 | fCDBUri(""), | |
40 | fInitCDBCalled(kFALSE) | |
41 | { | |
42 | // Default constructor | |
43 | // Inputs: | |
44 | // none. | |
45 | // Outputs: | |
46 | // none. | |
47 | // Return: | |
48 | // a default constructed AliITSPlaneEff class | |
49 | InitCDB(); | |
50 | } | |
51 | //______________________________________________________________________ | |
52 | AliITSPlaneEff::AliITSPlaneEff(const AliITSPlaneEff &s) : TObject(s), | |
53 | fRunNumber(s.fRunNumber), | |
54 | fCDBUri(s.fCDBUri), | |
55 | fInitCDBCalled(s.fInitCDBCalled) | |
56 | { | |
57 | // Copy Constructor | |
58 | // Inputs: | |
59 | // const AliITSPlaneEff &s simulation class to copy from | |
60 | // Outputs: | |
61 | // none. | |
62 | // Return: | |
63 | // a standard constructed AliITSPlaneEff class with values the same | |
64 | // as that of s. | |
65 | ||
66 | } | |
67 | //_________________________________________________________________________ | |
68 | //void AliITSPlaneEff::operator+=(const AliITSPlaneEff &add){ | |
69 | // Add to me operator | |
70 | // Inputs: | |
71 | // const AliITSPlaneEff &add simulation class to be added | |
72 | // Outputs: | |
73 | // none. | |
74 | // Return: | |
75 | // none | |
76 | ||
77 | // return; | |
78 | //} | |
79 | //_________________________________________________________________________ | |
80 | AliITSPlaneEff& AliITSPlaneEff::operator=(const AliITSPlaneEff &source){ | |
81 | // Assignment operator | |
82 | // Inputs: | |
83 | // const AliITSPlaneEff &source simulation class to copy from | |
84 | // Outputs: | |
85 | // none. | |
86 | // Return: | |
87 | // a standard constructed AliITSPlaneEff class with values the same | |
88 | // as that of s. | |
89 | if(this != &source){ | |
90 | source.Copy(*this); | |
91 | } | |
92 | return *this; | |
93 | // if(&s == this) return *this; | |
94 | // this->fRunNumber = s.fRunNumber; | |
95 | // this->fCDBUri = s.fCDBUri; | |
96 | // this->fInitCDBCalled = s.fInitCDBCalled; | |
97 | // return *this; | |
98 | } | |
99 | //_____________________________________________________________ | |
100 | void AliITSPlaneEff::Copy(TObject &obj) const { | |
101 | // copy this to obj | |
102 | ((AliITSPlaneEff& ) obj).fRunNumber = fRunNumber; | |
103 | ((AliITSPlaneEff& ) obj).fCDBUri = fCDBUri; | |
104 | ((AliITSPlaneEff& ) obj).fInitCDBCalled = fInitCDBCalled; | |
105 | } | |
106 | //_________________________________________________________________________ | |
107 | Double_t AliITSPlaneEff::PlaneEff(Int_t nf,Int_t nt) const { | |
108 | // Compute the efficiency for a basic block, | |
109 | // Inputs: | |
110 | // number of associated cluslters (nf) | |
111 | // number of used tracks (nt) | |
112 | // Outputs: | |
113 | // none. | |
114 | // Return: | |
115 | // the efficiency | |
116 | if(nf<0 || nt<=0 || nt<nf) { | |
117 | AliInfo(Form("AliITSPlaneEff::PlaneEff: nfound= %i, ntried= %i",nf,nt)); | |
118 | return -1.;} | |
119 | Double_t eff=nf; | |
120 | return eff/=nt; | |
121 | } | |
122 | //_________________________________________________________________________ | |
123 | Double_t AliITSPlaneEff::ErrPlaneEff(Int_t nf,Int_t nt) const{ | |
124 | // Compute the statistical error on efficiency for a basic block, | |
125 | // using binomial statistics | |
126 | // Inputs: | |
127 | // number of associated cluslters (nf) | |
128 | // number of used tracks (nt) | |
129 | // Outputs: | |
130 | // none. | |
131 | // Return: | |
132 | // the error on the efficiency | |
133 | if(nf<0 || nt<=0 || nt<nf) { | |
134 | AliInfo(Form("AliITSPlaneEff::ErrPlaneEff: nfound= %i, ntried= %i",nf,nt)); | |
135 | return -1.;} | |
136 | Double_t err=TMath::Sqrt(nf*(1.-nf/nt)); | |
137 | return err/=nt; | |
138 | } | |
139 | //______________________________________________________________________ | |
140 | Int_t AliITSPlaneEff::GetNTracksForGivenEff(Double_t eff, Double_t RelErr) const { | |
141 | // Estimate of the number of tracks needed for measuring efficiency | |
142 | // with a given relative error using binomial statistics | |
143 | // Inputs: | |
144 | // exspected efficiency eff (e.g. from previous measurements) | |
145 | // wished relative error RelErr | |
146 | // Outputs: | |
147 | // none. | |
148 | // Return: number of tracks given as the nearest integer | |
149 | if(eff<=0 || eff>1 || RelErr<=0 ) { | |
150 | AliInfo(Form("AliITSPlaneEff::GetNTracksForGivenEff: eff= %f, RelErr= %f",eff,RelErr)); | |
151 | return -1;} | |
152 | return TMath::Nint((1-eff)/(eff*RelErr*RelErr)); | |
153 | } | |
154 | //________________________________________________________________________ | |
155 | void AliITSPlaneEff::InitCDB() | |
156 | { | |
157 | // activate a default CDB storage | |
158 | // First check if we have any CDB storage set, because it is used | |
159 | // to retrieve the calibration and alignment constants | |
160 | ||
161 | if (fInitCDBCalled) return; | |
162 | fInitCDBCalled = kTRUE; | |
163 | ||
164 | AliCDBManager* man = AliCDBManager::Instance(); | |
165 | if (man->IsDefaultStorageSet()) | |
166 | { | |
167 | AliWarning("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); | |
168 | AliWarning("Default CDB storage has been already set !"); | |
169 | AliWarning(Form("Ignoring the default storage declared in AliITSPlaneEff: %s",fCDBUri.Data())); | |
170 | AliWarning("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); | |
171 | fCDBUri = man->GetDefaultStorage()->GetURI(); | |
172 | } | |
173 | else { | |
174 | if (fCDBUri.Length() > 0) | |
175 | { | |
176 | AliDebug(2,"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); | |
177 | AliDebug(2, Form("Default CDB storage is set to: %s", fCDBUri.Data())); | |
178 | AliDebug(2, "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); | |
179 | } else { | |
180 | fCDBUri="local://$ALICE_ROOT"; | |
181 | AliWarning("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); | |
182 | AliWarning("Default CDB storage not yet set !!!!"); | |
183 | AliWarning(Form("Setting it now to: %s", fCDBUri.Data())); | |
184 | AliWarning("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); | |
185 | ||
186 | } | |
187 | man->SetDefaultStorage(fCDBUri); | |
188 | } | |
189 | } | |
190 | //_____________________________________________________________________________ | |
191 | void AliITSPlaneEff::SetDefaultStorage(const char* uri) { | |
192 | // Store the desired default CDB storage location | |
193 | // Activate it later within the Run() method | |
194 | ||
195 | fCDBUri = uri; | |
196 | ||
197 | } | |
198 |