[u/mrichter/AliRoot.git] / PHOS / AliPHOSPreprocessor.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
// PHOS Preprocessor class. It runs by Shuttle at the end of the run,
// calculates calibration coefficients and dead/bad channels
// to be posted in OCDB
//
// Author: Boris Polichtchouk, 4 October 2006
///////////////////////////////////////////////////////////////////////////////

#include "AliPHOSPreprocessor.h"
#include "AliLog.h"
#include "AliCDBMetaData.h"
#include "AliPHOSEmcCalibData.h"
#include "TFile.h"
#include "TH1.h"
#include "TF1.h"
#include "TH2.h"
#include "TMap.h"
#include "TRandom.h"
#include "TKey.h"
#include "TList.h"
#include "TObjString.h"
#include "TObject.h"
#include "TString.h"
#include "TMath.h"
#include "AliPHOSEmcBadChannelsMap.h"

ClassImp(AliPHOSPreprocessor)

  Double_t rgaus(Double_t *x, Double_t *par)
{
  Double_t gaus = par[0] * TMath::Exp( -(x[0]-par[1])*(x[0]-par[1]) /
                                       (2*par[2]*par[2]) );
  return gaus;
}

//_______________________________________________________________________________________
AliPHOSPreprocessor::AliPHOSPreprocessor() :
AliPreprocessor("PHS",0)
{
  //default constructor
}

//_______________________________________________________________________________________
AliPHOSPreprocessor::AliPHOSPreprocessor(AliShuttleInterface* shuttle):
AliPreprocessor("PHS",shuttle)
{
  // Constructor
}

//_______________________________________________________________________________________
UInt_t AliPHOSPreprocessor::Process(TMap* /*valueSet*/)
{
  // process data retrieved by the Shuttle
  
  TString runType = GetRunType();
  Log(Form("Run type: %s",runType.Data()));

  if(runType=="STANDALONE") {
    Bool_t ledOK = ProcessLEDRun();
    if(ledOK) return 0;
    else
      return 1;
  }
  
  if(runType=="PHYSICS") {
    
    Bool_t badmap_OK = FindBadChannelsEmc();
    if(!badmap_OK) Log(Form("WARNING!! FindBadChannels() completed with BAD status!"));
    
    Bool_t calibEmc_OK = CalibrateEmc();

    if(calibEmc_OK && badmap_OK) return 0;
    else
      return 1;
  }

  Log(Form("Unknown run type %s. Do nothing and return OK.",runType.Data()));
  return 0;

}


Bool_t AliPHOSPreprocessor::ProcessLEDRun()
{
  //Process LED run, fill bad channels map.

  AliPHOSEmcBadChannelsMap badMap;

  TList* list = GetFileSources(kDAQ, "LED");
  if(!list) {
    Log("Sources list for LED run not found, exit.");
    return kFALSE;
  }

  TIter iter(list);
  TObjString *source;
  char hnam[80];
  TH1F* histo=0;
  
  while ((source = dynamic_cast<TObjString *> (iter.Next()))) {

    AliInfo(Form("found source %s", source->String().Data()));

    TString fileName = GetFile(kDAQ, "LED", source->GetName());
    AliInfo(Form("Got filename: %s",fileName.Data()));

    TFile f(fileName);

    if(!f.IsOpen()) {
      Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
      return kFALSE;
    }

    const Int_t nMod=5; // 1:5 modules
    const Int_t nCol=56; //1:56 columns in each module
    const Int_t nRow=64; //1:64 rows in each module

    // Check for dead channels    
    Log(Form("Begin check for dead channels."));

    for(Int_t mod=0; mod<nMod; mod++) {
      for(Int_t col=0; col<nCol; col++) {
	for(Int_t row=0; row<nRow; row++) {
	  sprintf(hnam,"mod%dcol%drow%d",mod,col,row);
	  histo = (TH1F*)f.Get(hnam);
	  if(histo)
	    if (histo->GetMean()<1) {
	      Log(Form("Channel: [%d,%d,%d] seems dead, <E>=%.1f.",mod,col,row,histo->GetMean()));
	      badMap.SetBadChannel(mod,col,row);
	    }
	}
      }
    }

  }

  //Store bad channels map
  AliCDBMetaData badMapMetaData;

  //Bad channels data valid from current run fRun until updated (validityInfinite=kTRUE)
  Bool_t result = Store("Calib", "EmcBadChannels", &badMap, &badMapMetaData, fRun, kTRUE);
  return result;

}

Float_t AliPHOSPreprocessor::HG2LG(Int_t mod, Int_t X, Int_t Z, TFile* f)
{
  //Calculates High gain to Low gain ratio 
  //for crystal at the position (X,Z) in the PHOS module mod.
  
  char hname[128];
  sprintf(hname,"%d_%d_%d",mod,X,Z);

  TH1F* h1 = (TH1F*)f->Get(hname);
  if(!h1) return 16.;

  if(!h1->GetEntries()) return 16.;
  if(h1->GetMaximum()<10.) return 16.;

  Double_t max = h1->GetBinCenter(h1->GetMaximumBin()); // peak
  Double_t xmin = max - (h1->GetRMS()/3);
  Double_t xmax = max + (h1->GetRMS()/2);
  //       Double_t xmin = max - (h1->GetRMS());
  //       Double_t xmax = max + (h1->GetRMS());

  TF1* gaus1 = new TF1("gaus1",rgaus,xmin,xmax,3);
  gaus1->SetParNames("Constant","Mean","Sigma");
  gaus1->SetParameter("Constant",h1->GetMaximum());
  gaus1->SetParameter("Mean",max);
  gaus1->SetParameter("Sigma",1.);
  gaus1->SetLineColor(kBlue);
  h1->Fit(gaus1,"LERQ+");

  AliInfo(Form("%s: %d entries, mean=%.3f, peak=%.3f, rms= %.3f. HG/LG = %.3f\n",
	   h1->GetTitle(),h1->GetEntries(),h1->GetMean(),max,h1->GetRMS(),
	   gaus1->GetParameter("Mean"))); 

  return gaus1->GetParameter("Mean");

}

Bool_t AliPHOSPreprocessor::FindBadChannelsEmc()
{
  //Creates the bad channels map for PHOS EMC.

  // The file fileName contains histograms which have been produced by DA2 detector algorithm.
  // It is a responsibility of the SHUTTLE framework to form the fileName.

  AliPHOSEmcBadChannelsMap badMap;

  TList* list = GetFileSources(kDAQ, "BAD_CHANNELS");

  if(!list) {
    Log("Sources list for BAD_CHANNELS not found, exit.");
    return kFALSE;
  }

  if(!list->GetEntries()) {
    Log(Form("Got empty sources list. It seems DA2 did not produce any files!"));
    return kFALSE;
  }

  TIter iter(list);
  TObjString *source;
  char hnam[80];
  TH1F* h1=0;

  const Float_t fQualityCut = 1.;
  Int_t nGoods[5] = {0,0,0,0,0};
  
  while ((source = dynamic_cast<TObjString *> (iter.Next()))) {

    AliInfo(Form("found source %s", source->String().Data()));

    TString fileName = GetFile(kDAQ, "BAD_CHANNELS", source->GetName());
    AliInfo(Form("Got filename: %s",fileName.Data()));

    TFile f(fileName);

    if(!f.IsOpen()) {
      Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
      return kFALSE;
    }
    
    Log(Form("Begin check for bad channels."));
    
    for(Int_t mod=0; mod<5; mod++) {
      for(Int_t iX=0; iX<64; iX++) {
	for(Int_t iZ=0; iZ<56; iZ++) {

	  sprintf(hnam,"%d_%d_%d_%d",mod,iX,iZ,1); // high gain	
	  h1 = (TH1F*)f.Get(hnam);

	  if(h1) {
	    Double_t mean = h1->GetMean();
	    
	    if(mean)
	      Log(Form("iX=%d iZ=%d gain=%d   mean=%.3f\n",iX,iZ,1,mean));

	    if( mean>0 && mean<fQualityCut ) { 
	      nGoods[mod]++; 
	    }
	    else
	      badMap.SetBadChannel(mod+1,iZ+1,iX+1); //module, col,row
	  }

	}
      }

      if(nGoods[mod])
	Log(Form("Module %d: %d good channels.",mod,nGoods[mod]));
    }

    
  } // end of loop over sources
  
  // Store the bad channels map.
  
  AliCDBMetaData md;
  md.SetResponsible("Boris Polishchuk");

  // Data valid from current run fRun until being updated (validityInfinite=kTRUE)
  Bool_t result = Store("Calib", "EmcBadChannels", &badMap, &md, fRun, kTRUE);
  return result;

}

Bool_t AliPHOSPreprocessor::CalibrateEmc()
{
  // I.  Calculates the set of calibration coefficients to equalyze the mean energies deposited at high gain.
  // II. Extracts High_Gain/Low_Gain ratio for each channel.

  // The file fileName contains histograms which have been produced by DA1 detector algorithm.
  // It is a responsibility of the SHUTTLE framework to form the fileName.

  gRandom->SetSeed(0); //the seed is set to the current  machine clock!
  AliPHOSEmcCalibData calibData;
  
  TList* list = GetFileSources(kDAQ, "AMPLITUDES");
  
  if(!list) {
    Log("Sources list not found, exit.");
    return 1;
  }

  if(!list->GetEntries()) {
    Log(Form("Got empty sources list. It seems DA1 did not produce any files!"));
    return kFALSE;
  }

  TIter iter(list);
  TObjString *source;
  
  while ((source = dynamic_cast<TObjString *> (iter.Next()))) {
    AliInfo(Form("found source %s", source->String().Data()));

    TString fileName = GetFile(kDAQ, "AMPLITUDES", source->GetName());
    AliInfo(Form("Got filename: %s",fileName.Data()));

    TFile f(fileName);

    if(!f.IsOpen()) {
      Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
      return 1;
    }
    
    const Int_t nMod=5; // 1:5 modules
    const Int_t nCol=56; //1:56 columns in each module
    const Int_t nRow=64; //1:64 rows in each module

    Double_t coeff;
    char hnam[80];
    TH2F* h2=0;
    TH1D* h1=0;
    
    //Get the reference histogram
    //(author: Gustavo Conesa Balbastre)

    TList * keylist = f.GetListOfKeys();
    Int_t nkeys   = f.GetNkeys();
    Bool_t ok = kFALSE;
    TKey  *key;
    Int_t ikey = 0;
    Int_t counter = 0;
    TH1D* hRef = 0;

    //Check if the file contains any histogram
    
    if(nkeys< 2){
      Log(Form("Not enough histograms (%d) for calibration.",nkeys));
      return 1;
    }
    
    while(!ok){
      ikey = gRandom->Integer(nkeys);
      key = (TKey*)keylist->At(ikey);
      TObject* obj = f.Get(key->GetName());
      TString cname(obj->ClassName());
      if(cname == "TH2F") {
	h2 = (TH2F*)obj;
	TString htitl = h2->GetTitle();
	if(htitl.Contains("and gain 1")) {
	  hRef = h2->ProjectionX();
	  hRef->SetBins(1000,0.,1000.); // to cut off saturation peak at 1023
	  // Check if the reference histogram has too little statistics
	  if(hRef->GetEntries()>2) ok=kTRUE;
	}
      }
      
      counter++;
      
      if(!ok && counter > nkeys){
	Log("No histogram with enough statistics for reference. Exit.");
	return 1;
      }
    }
    
    Log(Form("reference histogram %s, %.1f entries, mean=%.3f, rms=%.3f.",
	     hRef->GetName(),hRef->GetEntries(),
	     hRef->GetMean(),hRef->GetRMS()));

    Double_t refMean=hRef->GetMean();
    
    // Calculates relative calibration coefficients for all non-zero channels
    
    for(Int_t mod=0; mod<nMod; mod++) {
      for(Int_t col=0; col<nCol; col++) {
	for(Int_t row=0; row<nRow; row++) {

	  //High Gain to Low Gain ratio
	  Float_t ratio = HG2LG(mod,row,col,&f);
	  calibData.SetHighLowRatioEmc(mod+1,col+1,row+1,ratio);
	  
	  sprintf(hnam,"%d_%d_%d_1",mod,row,col); // high gain!
	  h2 = (TH2F*)f.Get(hnam);

	  //TODO: dead channels exclusion!
	  if(h2) {
	    h1 = h2->ProjectionX();
	    h1->SetBins(1000,0.,1000.); // to cut off saturation peak at 1023
	    coeff = h1->GetMean()/refMean;
	    if(coeff>0)
	      calibData.SetADCchannelEmc(mod+1,col+1,row+1,1./coeff);
	    else 
	      calibData.SetADCchannelEmc(mod+1,col+1,row+1,1.);
	    AliInfo(Form("mod %d col %d row %d  coeff %f\n",mod,col,row,coeff));
	  }
	  else
	    calibData.SetADCchannelEmc(mod+1,col+1,row+1,1.); 
	}
      }
    }
    
    f.Close();
  }
  
  //Store EMC calibration data
  
  AliCDBMetaData emcMetaData;
  Bool_t result = Store("Calib", "EmcGainPedestals", &calibData, &emcMetaData, 0, kTRUE); // valid from 0 to infinity);
  return result;

}
Commit	Line	Data
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"
450717bc	32	#include "TF1.h"
450717bc	33	#include "TH2.h"
1ab07e55	34	#include "TMap.h"
1ab07e55	35	#include "TRandom.h"
f97eb136	36	#include "TKey.h"
516e7ab3	37	#include "TList.h"
516e7ab3	38	#include "TObjString.h"
450717bc	39	#include "TObject.h"
	40	#include "TString.h"
	41	#include "TMath.h"
3c0265c1	42	#include "AliPHOSEmcBadChannelsMap.h"
1ab07e55	43
	44	ClassImp(AliPHOSPreprocessor)
	45
450717bc	46	Double_t rgaus(Double_t x, Double_t par)
	47	{
	48	Double_t gaus = par[0] * TMath::Exp( -(x[0]-par[1])*(x[0]-par[1]) /
	49	(2par[2]par[2]) );
	50	return gaus;
	51	}
	52
1ab07e55	53	//_______________________________________________________________________________________
1ab07e55	54	AliPHOSPreprocessor::AliPHOSPreprocessor() :
81587b1e	55	AliPreprocessor("PHS",0)
1ab07e55	56	{
	57	//default constructor
	58	}
	59
	60	//_______________________________________________________________________________________
81587b1e	61	AliPHOSPreprocessor::AliPHOSPreprocessor(AliShuttleInterface* shuttle):
81587b1e	62	AliPreprocessor("PHS",shuttle)
1ab07e55	63	{
	64	// Constructor
	65	}
	66
	67	//_______________________________________________________________________________________
	68	UInt_t AliPHOSPreprocessor::Process(TMap* /valueSet/)
	69	{
	70	// process data retrieved by the Shuttle
516e7ab3	71
3c0265c1	72	TString runType = GetRunType();
	73	Log(Form("Run type: %s",runType.Data()));
	74
9f43d7da	75	if(runType=="STANDALONE") {
eba66a50	76	Bool_t ledOK = ProcessLEDRun();
	77	if(ledOK) return 0;
	78	else
	79	return 1;
	80	}
9f43d7da	81
	82	if(runType=="PHYSICS") {
	83
	84	Bool_t badmap_OK = FindBadChannelsEmc();
	85	if(!badmap_OK) Log(Form("WARNING!! FindBadChannels() completed with BAD status!"));
	86
	87	Bool_t calibEmc_OK = CalibrateEmc();
	88
	89	if(calibEmc_OK && badmap_OK) return 0;
	90	else
	91	return 1;
	92	}
	93
	94	Log(Form("Unknown run type %s. Do nothing and return OK.",runType.Data()));
	95	return 0;
	96
	97	}
	98
	99
	100	Bool_t AliPHOSPreprocessor::ProcessLEDRun()
	101	{
	102	//Process LED run, fill bad channels map.
	103
	104	AliPHOSEmcBadChannelsMap badMap;
	105
	106	TList* list = GetFileSources(kDAQ, "LED");
	107	if(!list) {
	108	Log("Sources list for LED run not found, exit.");
	109	return kFALSE;
	110	}
	111
	112	TIter iter(list);
	113	TObjString *source;
	114	char hnam[80];
	115	TH1F* histo=0;
	116
	117	while ((source = dynamic_cast<TObjString *> (iter.Next()))) {
	118
	119	AliInfo(Form("found source %s", source->String().Data()));
	120
	121	TString fileName = GetFile(kDAQ, "LED", source->GetName());
	122	AliInfo(Form("Got filename: %s",fileName.Data()));
	123
	124	TFile f(fileName);
	125
	126	if(!f.IsOpen()) {
	127	Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
	128	return kFALSE;
	129	}
	130
	131	const Int_t nMod=5; // 1:5 modules
	132	const Int_t nCol=56; //1:56 columns in each module
	133	const Int_t nRow=64; //1:64 rows in each module
	134
	135	// Check for dead channels
	136	Log(Form("Begin check for dead channels."));
	137
	138	for(Int_t mod=0; mod<nMod; mod++) {
	139	for(Int_t col=0; col<nCol; col++) {
	140	for(Int_t row=0; row<nRow; row++) {
	141	sprintf(hnam,"mod%dcol%drow%d",mod,col,row);
	142	histo = (TH1F*)f.Get(hnam);
	143	if(histo)
	144	if (histo->GetMean()<1) {
145	Log(Form("Channel: [%d,%d,%d] seems dead, <E>=%.1f.",mod,col,row,histo->GetMean()));
146	badMap.SetBadChannel(mod,col,row);
147	}
148	}
149	}
150	}
151
152	}
153
154	//Store bad channels map
155	AliCDBMetaData badMapMetaData;
156
157	//Bad channels data valid from current run fRun until updated (validityInfinite=kTRUE)
158	Bool_t result = Store("Calib", "EmcBadChannels", &badMap, &badMapMetaData, fRun, kTRUE);
159	return result;
160
161	}
162
163	Float_t AliPHOSPreprocessor::HG2LG(Int_t mod, Int_t X, Int_t Z, TFile* f)
164	{
165	//Calculates High gain to Low gain ratio
166	//for crystal at the position (X,Z) in the PHOS module mod.
167
168	char hname[128];
169	sprintf(hname,"%d_%d_%d",mod,X,Z);
170
171	TH1F* h1 = (TH1F*)f->Get(hname);
172	if(!h1) return 16.;
173
174	if(!h1->GetEntries()) return 16.;
175	if(h1->GetMaximum()<10.) return 16.;
176
177	Double_t max = h1->GetBinCenter(h1->GetMaximumBin()); // peak
178	Double_t xmin = max - (h1->GetRMS()/3);
179	Double_t xmax = max + (h1->GetRMS()/2);
180	// Double_t xmin = max - (h1->GetRMS());
181	// Double_t xmax = max + (h1->GetRMS());
182
183	TF1* gaus1 = new TF1("gaus1",rgaus,xmin,xmax,3);
184	gaus1->SetParNames("Constant","Mean","Sigma");
185	gaus1->SetParameter("Constant",h1->GetMaximum());
186	gaus1->SetParameter("Mean",max);
187	gaus1->SetParameter("Sigma",1.);
188	gaus1->SetLineColor(kBlue);
189	h1->Fit(gaus1,"LERQ+");
190
3f5f9893	191	AliInfo(Form("%s: %d entries, mean=%.3f, peak=%.3f, rms= %.3f. HG/LG = %.3f\n",
9f43d7da	192	h1->GetTitle(),h1->GetEntries(),h1->GetMean(),max,h1->GetRMS(),
	193	gaus1->GetParameter("Mean")));
	194
	195	return gaus1->GetParameter("Mean");
	196
	197	}
	198
	199	Bool_t AliPHOSPreprocessor::FindBadChannelsEmc()
	200	{
	201	//Creates the bad channels map for PHOS EMC.
	202
	203	// The file fileName contains histograms which have been produced by DA2 detector algorithm.
	204	// It is a responsibility of the SHUTTLE framework to form the fileName.
	205
	206	AliPHOSEmcBadChannelsMap badMap;
	207
	208	TList* list = GetFileSources(kDAQ, "BAD_CHANNELS");
	209
	210	if(!list) {
	211	Log("Sources list for BAD_CHANNELS not found, exit.");
	212	return kFALSE;
	213	}
	214
	215	if(!list->GetEntries()) {
	216	Log(Form("Got empty sources list. It seems DA2 did not produce any files!"));
	217	return kFALSE;
	218	}
	219
	220	TIter iter(list);
	221	TObjString *source;
	222	char hnam[80];
	223	TH1F* h1=0;
	224
	225	const Float_t fQualityCut = 1.;
	226	Int_t nGoods[5] = {0,0,0,0,0};
	227
	228	while ((source = dynamic_cast<TObjString *> (iter.Next()))) {
	229
	230	AliInfo(Form("found source %s", source->String().Data()));
	231
	232	TString fileName = GetFile(kDAQ, "BAD_CHANNELS", source->GetName());
	233	AliInfo(Form("Got filename: %s",fileName.Data()));
	234
	235	TFile f(fileName);
	236
	237	if(!f.IsOpen()) {
	238	Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
	239	return kFALSE;
	240	}
	241
	242	Log(Form("Begin check for bad channels."));
	243
	244	for(Int_t mod=0; mod<5; mod++) {
	245	for(Int_t iX=0; iX<64; iX++) {
	246	for(Int_t iZ=0; iZ<56; iZ++) {
	247
	248	sprintf(hnam,"%d_%d_%d_%d",mod,iX,iZ,1); // high gain
	249	h1 = (TH1F*)f.Get(hnam);
	250
	251	if(h1) {
	252	Double_t mean = h1->GetMean();
	253
	254	if(mean)
	255	Log(Form("iX=%d iZ=%d gain=%d mean=%.3f\n",iX,iZ,1,mean));
256
257	if( mean>0 && mean<fQualityCut ) {
258	nGoods[mod]++;
259	}
260	else
261	badMap.SetBadChannel(mod+1,iZ+1,iX+1); //module, col,row
262	}
263
264	}
265	}
266
267	if(nGoods[mod])
268	Log(Form("Module %d: %d good channels.",mod,nGoods[mod]));
269	}
270
271
272	} // end of loop over sources
273
274	// Store the bad channels map.
275
276	AliCDBMetaData md;
277	md.SetResponsible("Boris Polishchuk");
278
279	// Data valid from current run fRun until being updated (validityInfinite=kTRUE)
280	Bool_t result = Store("Calib", "EmcBadChannels", &badMap, &md, fRun, kTRUE);
281	return result;
282
283	}
284
285	Bool_t AliPHOSPreprocessor::CalibrateEmc()
286	{
287	// I. Calculates the set of calibration coefficients to equalyze the mean energies deposited at high gain.
288	// II. Extracts High_Gain/Low_Gain ratio for each channel.
289
290	// The file fileName contains histograms which have been produced by DA1 detector algorithm.
291	// It is a responsibility of the SHUTTLE framework to form the fileName.
eba66a50	292
c1274f4c	293	gRandom->SetSeed(0); //the seed is set to the current machine clock!
516e7ab3	294	AliPHOSEmcCalibData calibData;
9f43d7da	295
516e7ab3	296	TList* list = GetFileSources(kDAQ, "AMPLITUDES");
9f43d7da	297
516e7ab3	298	if(!list) {
516e7ab3	299	Log("Sources list not found, exit.");
eba66a50	300	return 1;
1ab07e55	301	}
1ab07e55	302
9f43d7da	303	if(!list->GetEntries()) {
	304	Log(Form("Got empty sources list. It seems DA1 did not produce any files!"));
	305	return kFALSE;
	306	}
	307
516e7ab3	308	TIter iter(list);
516e7ab3	309	TObjString *source;
3c0265c1	310
516e7ab3	311	while ((source = dynamic_cast<TObjString *> (iter.Next()))) {
516e7ab3	312	AliInfo(Form("found source %s", source->String().Data()));
f97eb136	313
516e7ab3	314	TString fileName = GetFile(kDAQ, "AMPLITUDES", source->GetName());
516e7ab3	315	AliInfo(Form("Got filename: %s",fileName.Data()));
f97eb136	316
516e7ab3	317	TFile f(fileName);
f97eb136	318
516e7ab3	319	if(!f.IsOpen()) {
516e7ab3	320	Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
eba66a50	321	return 1;
516e7ab3	322	}
9f43d7da	323
516e7ab3	324	const Int_t nMod=5; // 1:5 modules
	325	const Int_t nCol=56; //1:56 columns in each module
	326	const Int_t nRow=64; //1:64 rows in each module
	327
	328	Double_t coeff;
	329	char hnam[80];
450717bc	330	TH2F* h2=0;
450717bc	331	TH1D* h1=0;
3c0265c1	332
516e7ab3	333	//Get the reference histogram
	334	//(author: Gustavo Conesa Balbastre)
	335
	336	TList * keylist = f.GetListOfKeys();
	337	Int_t nkeys = f.GetNkeys();
	338	Bool_t ok = kFALSE;
	339	TKey *key;
516e7ab3	340	Int_t ikey = 0;
516e7ab3	341	Int_t counter = 0;
450717bc	342	TH1D* hRef = 0;
450717bc	343
516e7ab3	344	//Check if the file contains any histogram
	345
	346	if(nkeys< 2){
	347	Log(Form("Not enough histograms (%d) for calibration.",nkeys));
4988b8ce	348	return 1;
f97eb136	349	}
450717bc	350
516e7ab3	351	while(!ok){
	352	ikey = gRandom->Integer(nkeys);
	353	key = (TKey*)keylist->At(ikey);
450717bc	354	TObject* obj = f.Get(key->GetName());
	355	TString cname(obj->ClassName());
	356	if(cname == "TH2F") {
	357	h2 = (TH2F*)obj;
	358	TString htitl = h2->GetTitle();
	359	if(htitl.Contains("and gain 1")) {
	360	hRef = h2->ProjectionX();
	361	hRef->SetBins(1000,0.,1000.); // to cut off saturation peak at 1023
	362	// Check if the reference histogram has too little statistics
	363	if(hRef->GetEntries()>2) ok=kTRUE;
450717bc	364	}
516e7ab3	365	}
b8093789	366
450717bc	367	counter++;
b8093789	368
	369	if(!ok && counter > nkeys){
	370	Log("No histogram with enough statistics for reference. Exit.");
	371	return 1;
	372	}
516e7ab3	373	}
3c0265c1	374
516e7ab3	375	Log(Form("reference histogram %s, %.1f entries, mean=%.3f, rms=%.3f.",
	376	hRef->GetName(),hRef->GetEntries(),
	377	hRef->GetMean(),hRef->GetRMS()));
	378
	379	Double_t refMean=hRef->GetMean();
3c0265c1	380
516e7ab3	381	// Calculates relative calibration coefficients for all non-zero channels
3c0265c1	382
516e7ab3	383	for(Int_t mod=0; mod<nMod; mod++) {
	384	for(Int_t col=0; col<nCol; col++) {
	385	for(Int_t row=0; row<nRow; row++) {
450717bc	386
	387	//High Gain to Low Gain ratio
	388	Float_t ratio = HG2LG(mod,row,col,&f);
	389	calibData.SetHighLowRatioEmc(mod+1,col+1,row+1,ratio);
	390
	391	sprintf(hnam,"%d_%d_%d_1",mod,row,col); // high gain!
	392	h2 = (TH2F*)f.Get(hnam);
	393
516e7ab3	394	//TODO: dead channels exclusion!
450717bc	395	if(h2) {
	396	h1 = h2->ProjectionX();
	397	h1->SetBins(1000,0.,1000.); // to cut off saturation peak at 1023
	398	coeff = h1->GetMean()/refMean;
64d8f3f1	399	if(coeff>0)
da2ee9fc	400	calibData.SetADCchannelEmc(mod+1,col+1,row+1,1./coeff);
64d8f3f1	401	else
da2ee9fc	402	calibData.SetADCchannelEmc(mod+1,col+1,row+1,1.);
516e7ab3	403	AliInfo(Form("mod %d col %d row %d coeff %f\n",mod,col,row,coeff));
	404	}
	405	else
da2ee9fc	406	calibData.SetADCchannelEmc(mod+1,col+1,row+1,1.);
1ab07e55	407	}
1ab07e55	408	}
1ab07e55	409	}
516e7ab3	410
516e7ab3	411	f.Close();
1ab07e55	412	}
516e7ab3	413
3c0265c1	414	//Store EMC calibration data
	415
	416	AliCDBMetaData emcMetaData;
9f43d7da	417	Bool_t result = Store("Calib", "EmcGainPedestals", &calibData, &emcMetaData, 0, kTRUE); // valid from 0 to infinity);
1ab07e55	418	return result;
	419
	420	}
450717bc	421
9f43d7da	422
450717bc	423