misalignment macro from Tomek
[u/mrichter/AliRoot.git] / PHOS / AliPHOSCpvPreprocessor.cxx
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5271d654 1/**************************************************************************
2 * Copyright(c) 1998-2008, 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
17///////////////////////////////////////////////////////////////////////////////
18// CPV Preprocessor class. It runs by Shuttle at the end of the run,
19// calculates calibration coefficients and dead/bad channels
20// to be posted in OCDB.
21//
22// Author: Boris Polichtchouk, 25 January 2008
23///////////////////////////////////////////////////////////////////////////////
24
25#include "AliPHOSCpvPreprocessor.h"
26#include "AliLog.h"
27#include "AliCDBMetaData.h"
28#include "AliPHOSCpvCalibData.h"
29#include "TFile.h"
30#include "TH1.h"
31#include "TMap.h"
32#include "TRandom.h"
33#include "TKey.h"
34#include "TList.h"
35#include "TObjString.h"
36
37ClassImp(AliPHOSCpvPreprocessor)
38
39//_______________________________________________________________________________________
40AliPHOSCpvPreprocessor::AliPHOSCpvPreprocessor() :
41AliPreprocessor("CPV",0)
42{
43 //default constructor
44}
45
46//_______________________________________________________________________________________
47AliPHOSCpvPreprocessor::AliPHOSCpvPreprocessor(AliShuttleInterface* shuttle):
48AliPreprocessor("CPV",shuttle)
49{
50 // Constructor
51}
52
53//_______________________________________________________________________________________
54UInt_t AliPHOSCpvPreprocessor::Process(TMap* /*valueSet*/)
55{
56 // process data retrieved by the Shuttle
57
58 // The fileName with the histograms which have been produced by
59 // AliPHOSCpvDAs.
60 // It is a responsibility of the SHUTTLE framework to form the fileName.
61
62 TString runType = GetRunType();
63 Log(Form("Run type: %s",runType.Data()));
64
65 gRandom->SetSeed(0); //the seed is set to the current machine clock!
66 AliPHOSCpvCalibData calibData;
67
68 TList* list = GetFileSources(kDAQ, "AMPLITUDES");
69 if(!list) {
70 Log("Sources list not found, exit.");
71 return 1;
72 }
73
74 TIter iter(list);
75 TObjString *source;
76
77 while ((source = dynamic_cast<TObjString *> (iter.Next()))) {
78 AliInfo(Form("found source %s", source->String().Data()));
79
80 TString fileName = GetFile(kDAQ, "AMPLITUDES", source->GetName());
81 AliInfo(Form("Got filename: %s",fileName.Data()));
82
83 TFile f(fileName);
84
85 if(!f.IsOpen()) {
86 Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
87 return 1;
88 }
89
90 const Int_t nMod=5; // 1:5 modules
91 const Int_t nCol=56; // 1:56 columns in each CPV module (along the global Z axis)
92 const Int_t nRow=128; // 1:128 rows in each CPV module
93
94 Double_t coeff;
95 char hnam[80];
96 TH1F* histo=0;
97
98 //Get the reference histogram
99 //(author: Gustavo Conesa Balbastre)
100
101 TList * keylist = f.GetListOfKeys();
102 Int_t nkeys = f.GetNkeys();
103 Bool_t ok = kFALSE;
104 TKey *key;
105 TString refHistoName= "";
106 Int_t ikey = 0;
107 Int_t counter = 0;
108 TH1F* hRef = 0;
109
110 //Check if the file contains any histogram
111
112 if(nkeys< 2){
113 Log(Form("Not enough histograms (%d) for calibration.",nkeys));
114 return 1;
115 }
116
117 while(!ok){
118 ikey = gRandom->Integer(nkeys);
119 key = (TKey*)keylist->At(ikey);
120 refHistoName = key->GetName();
121 hRef = (TH1F*)f.Get(refHistoName);
122 counter++;
123 // Check if the reference histogram has too little statistics
124 if(hRef->GetEntries()>2) ok=kTRUE;
125 if(!ok && counter >= nkeys){
126 Log("No histogram with enough statistics for reference.");
127 return 1;
128 }
129 }
130
131 Log(Form("reference histogram %s, %.1f entries, mean=%.3f, rms=%.3f.",
132 hRef->GetName(),hRef->GetEntries(),
133 hRef->GetMean(),hRef->GetRMS()));
134
135 Double_t refMean=hRef->GetMean();
136
137 // Calculates relative calibration coefficients for all non-zero channels
138
139 for(Int_t mod=0; mod<nMod; mod++) {
140 for(Int_t col=0; col<nCol; col++) {
141 for(Int_t row=0; row<nRow; row++) {
142 sprintf(hnam,"%d_%d_%d",mod,row,col); // mod_X_Z
143 histo = (TH1F*)f.Get(hnam);
144 //TODO: dead channels exclusion!
145 if(histo) {
146 coeff = histo->GetMean()/refMean;
147 if(coeff>0)
148 calibData.SetADCchannelCpv(mod+1,col+1,row+1,1./coeff);
149 AliInfo(Form("mod %d col %d row %d coeff %f\n",mod,col,row,coeff));
150 }
151 }
152 }
153 }
154
155 f.Close();
156 }
157
158 //Store CPV calibration data
159
160 AliCDBMetaData cpvMetaData;
161 Bool_t cpvOK = Store("Calib", "CpvGainPedestals", &calibData, &cpvMetaData);
162
163 if(cpvOK) return 0;
164 else
165 return 1;
166
167}
168