Fix
[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
708cc9f0 51
52 AddRunType("PHYSICS");
53 AddRunType("STANDALONE");
54
5271d654 55}
56
57//_______________________________________________________________________________________
58UInt_t AliPHOSCpvPreprocessor::Process(TMap* /*valueSet*/)
59{
60 // process data retrieved by the Shuttle
61
62 // The fileName with the histograms which have been produced by
63 // AliPHOSCpvDAs.
64 // It is a responsibility of the SHUTTLE framework to form the fileName.
65
66 TString runType = GetRunType();
67 Log(Form("Run type: %s",runType.Data()));
68
708cc9f0 69 if(runType=="PHYSICS") {
5271d654 70
708cc9f0 71 gRandom->SetSeed(0); //the seed is set to the current machine clock!
72 AliPHOSCpvCalibData calibData;
73
74 TList* list = GetFileSources(kDAQ, "AMPLITUDES");
75 if(!list) {
76 Log("Sources list not found, exit.");
77 return 1;
78 }
5271d654 79
708cc9f0 80 TIter iter(list);
81 TObjString *source;
5271d654 82
708cc9f0 83 while ((source = dynamic_cast<TObjString *> (iter.Next()))) {
84 AliInfo(Form("found source %s", source->String().Data()));
5271d654 85
708cc9f0 86 TString fileName = GetFile(kDAQ, "AMPLITUDES", source->GetName());
87 AliInfo(Form("Got filename: %s",fileName.Data()));
5271d654 88
708cc9f0 89 TFile f(fileName);
5271d654 90
708cc9f0 91 if(!f.IsOpen()) {
92 Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
93 return 1;
94 }
5271d654 95
708cc9f0 96 const Int_t nMod=5; // 1:5 modules
97 const Int_t nCol=56; // 1:56 columns in each CPV module (along the global Z axis)
98 const Int_t nRow=128; // 1:128 rows in each CPV module
5271d654 99
708cc9f0 100 Double_t coeff;
101 char hnam[80];
102 TH1F* histo=0;
5271d654 103
708cc9f0 104 //Get the reference histogram
105 //(author: Gustavo Conesa Balbastre)
106
107 TList * keylist = f.GetListOfKeys();
108 Int_t nkeys = f.GetNkeys();
109 Bool_t ok = kFALSE;
110 TKey *key;
111 TString refHistoName= "";
112 Int_t ikey = 0;
113 Int_t counter = 0;
114 TH1F* hRef = 0;
5271d654 115
708cc9f0 116 //Check if the file contains any histogram
5271d654 117
708cc9f0 118 if(nkeys< 2){
119 Log(Form("Not enough histograms (%d) for calibration.",nkeys));
5271d654 120 return 1;
121 }
5271d654 122
708cc9f0 123 while(!ok){
124 ikey = gRandom->Integer(nkeys);
125 key = (TKey*)keylist->At(ikey);
126 refHistoName = key->GetName();
127 hRef = (TH1F*)f.Get(refHistoName);
128 counter++;
129 // Check if the reference histogram has too little statistics
130 if(hRef->GetEntries()>2) ok=kTRUE;
131 if(!ok && counter >= nkeys){
132 Log("No histogram with enough statistics for reference.");
133 return 1;
134 }
135 }
5271d654 136
708cc9f0 137 Log(Form("reference histogram %s, %.1f entries, mean=%.3f, rms=%.3f.",
138 hRef->GetName(),hRef->GetEntries(),
139 hRef->GetMean(),hRef->GetRMS()));
140
141 Double_t refMean=hRef->GetMean();
5271d654 142
708cc9f0 143 // Calculates relative calibration coefficients for all non-zero channels
144
145 for(Int_t mod=0; mod<nMod; mod++) {
146 for(Int_t col=0; col<nCol; col++) {
147 for(Int_t row=0; row<nRow; row++) {
14895588 148 snprintf(hnam,80,"%d_%d_%d",mod,row,col); // mod_X_Z
708cc9f0 149 histo = (TH1F*)f.Get(hnam);
150 //TODO: dead channels exclusion!
151 if(histo) {
152 coeff = histo->GetMean()/refMean;
153 if(coeff>0)
154 calibData.SetADCchannelCpv(mod+1,col+1,row+1,1./coeff);
155 AliInfo(Form("mod %d col %d row %d coeff %f\n",mod,col,row,coeff));
156 }
5271d654 157 }
158 }
159 }
5271d654 160
708cc9f0 161 f.Close();
162 }
5271d654 163
708cc9f0 164 //Store CPV calibration data
5271d654 165
708cc9f0 166 AliCDBMetaData cpvMetaData;
167 Bool_t cpvOK = Store("Calib", "CpvGainPedestals", &calibData, &cpvMetaData);
168
169 if(cpvOK) return 0;
170 else
171 return 1;
172 }
5271d654 173
708cc9f0 174 Log(Form("Unknown or unused run type %s. Do nothing and return OK.",runType.Data()));
175 return 0;
5271d654 176
177}
178