Adding needed changes in the BUILD.sh for the compilation of the PWG2ebye.par
[u/mrichter/AliRoot.git] / PHOS / AliPHOSPreprocessor.cxx
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1ab07e55 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// PHOS Preprocessor class. It runs by Shuttle at the end of the run,
20// calculates calibration coefficients and dead/bad channels
21// to be posted in OCDB
22//
23// Author: Boris Polichtchouk, 4 October 2006
24///////////////////////////////////////////////////////////////////////////////
25
26#include "AliPHOSPreprocessor.h"
27#include "AliLog.h"
28#include "AliCDBMetaData.h"
29#include "AliPHOSEmcCalibData.h"
30#include "TFile.h"
31#include "TH1.h"
32#include "TMap.h"
33#include "TRandom.h"
f97eb136 34#include "TKey.h"
1ab07e55 35
36ClassImp(AliPHOSPreprocessor)
37
38//_______________________________________________________________________________________
39AliPHOSPreprocessor::AliPHOSPreprocessor() :
81587b1e 40AliPreprocessor("PHS",0)
1ab07e55 41{
42 //default constructor
43}
44
45//_______________________________________________________________________________________
81587b1e 46AliPHOSPreprocessor::AliPHOSPreprocessor(AliShuttleInterface* shuttle):
47AliPreprocessor("PHS",shuttle)
1ab07e55 48{
49 // Constructor
50}
51
52//_______________________________________________________________________________________
53UInt_t AliPHOSPreprocessor::Process(TMap* /*valueSet*/)
54{
55 // process data retrieved by the Shuttle
56
57 // The fileName with the histograms which have been produced by
58 // AliPHOSCalibHistoProducer.
59 // It is a responsibility of the SHUTTLE framework to form the fileName
60
61 const char* fileName = GetFile(kDAQ, "AMPLITUDES", "GDC");
62 AliInfo(Form("Got filename: %s",fileName));
63
64 TFile f(fileName);
65
66 if(!f.IsOpen()) {
67 AliInfo(Form("File %s is not opened, something goes wrong!",fileName));
68 return 0;
69 }
70
71 const Int_t nMod=5; // 1:5 modules
72 const Int_t nCol=56; //1:56 columns in each module
73 const Int_t nRow=64; //1:64 rows in each module
74
75 Double_t coeff;
76 char hnam[80];
77 TH1F* histo=0;
78
f97eb136 79 //Get the reference histogram
80 //(author: Gustavo Conesa Balbastre)
81
82 TList * keylist = f.GetListOfKeys();
83 Int_t nkeys = f.GetNkeys();
84 Bool_t ok = kFALSE;
85 TKey *key;
86 TString refHistoName= "";
87 Int_t ikey = 0;
88 Int_t counter = 0;
89 TH1F* hRef = 0;
90
91 //Check if the file contains any histogram
92
93 if(nkeys< 2){
94 AliInfo(Form("Not enough histograms (%d) for calibration.",nkeys));
1ab07e55 95 return 0;
96 }
97
f97eb136 98 while(!ok){
99 ikey = gRandom->Integer(nkeys);
100 key = (TKey*)keylist->At(ikey);
101 refHistoName = key->GetName();
102 hRef = (TH1F*)f.Get(refHistoName);
103 counter++;
104 // Check if the reference histogram has too little statistics
105 if(hRef->GetEntries()>2) ok=kTRUE;
106 if(!ok && counter >= nMod*nCol*nRow){
107 AliInfo("No histogram with enough statistics for reference.");
108 return 0;
109 }
110 }
111
112 AliInfo(Form("reference histogram %s, %.1f entries, mean=%.3f, rms=%.3f.",
113 hRef->GetName(),hRef->GetEntries(),
114 hRef->GetMean(),hRef->GetRMS()));
115
1ab07e55 116 AliPHOSEmcCalibData calibData;
117 Double_t refMean=hRef->GetMean();
118
119 // Calculates relative calibration coefficients for all non-zero channels
120
121 for(Int_t mod=0; mod<nMod; mod++) {
122 for(Int_t col=0; col<nCol; col++) {
123 for(Int_t row=0; row<nRow; row++) {
124 sprintf(hnam,"mod%dcol%drow%d",mod,col,row);
125 histo = (TH1F*)f.Get(hnam);
126 //TODO: dead channels exclusion!
127 if(histo) {
128 coeff = histo->GetMean()/refMean;
129 calibData.SetADCchannelEmc(mod+1,col+1,row+1,0.001/coeff);
130 AliInfo(Form("mod %d col %d row %d coeff %f\n",mod,col,row,coeff));
131 }
132 else
f97eb136 133 calibData.SetADCchannelEmc(mod+1,col+1,row+1,0.001);
1ab07e55 134 }
135 }
136 }
137
138 AliCDBMetaData metaData;
81587b1e 139 Int_t result = Store("Calib", "EmcData", &calibData, &metaData);
1ab07e55 140
141 f.Close();
142 return result;
143
144}