Corrected access to the data file

[u/mrichter/AliRoot.git] / MUON / AliMUONPedestalSubprocessor.cxx

/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
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* Author: The ALICE Off-line Project.                                    *
* Contributors are mentioned in the code where appropriate.              *
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* 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.                  *
**************************************************************************/

// $Id$

#include <sstream>

#include <Riostream.h>
#include <TList.h>
#include <TObjString.h>
#include <TSystem.h>

#include "AliCDBMetaData.h"
#include "AliLog.h"
#include "AliMUON2DMap.h"
#include "AliMUONCalibParam2F.h"
#include "AliMUONConstants.h"
#include "AliMUONObjectPair.h"
#include "AliMUONPedestalSubprocessor.h"
#include "AliMUONPreprocessor.h"
#include "AliMUONVDataIterator.h"
#include "AliMpDDLStore.h"

///
/// \class AliMUONPedestalSubprocessor
///
/// Implementation of AliMUONVSubprocessor class to deal with MUON TRK pedestals.
///
/// Pedestals are read in from an ascii file, with the format :               \n
///---------------------------------------------------------------------------\n
/// BUS_PATCH MANU_ADDR CHANNEL      MEAN       SIGMA                         \n
///---------------------------------------------------------------------------\n
///
/// \author L. Aphecetche
///

/// \cond CLASSIMP
ClassImp(AliMUONPedestalSubprocessor)
/// \endcond

//_____________________________________________________________________________
AliMUONPedestalSubprocessor::AliMUONPedestalSubprocessor(AliMUONPreprocessor* master)
: AliMUONVSubprocessor(master,
                       "Pedestals",
                       "Upload MUON Tracker pedestals to OCDB"),
fPedestals(0x0)
{
  /// default ctor
}

//_____________________________________________________________________________
AliMUONPedestalSubprocessor::~AliMUONPedestalSubprocessor()
{
  /// dtor
  delete fPedestals;
}

//_____________________________________________________________________________
void 
AliMUONPedestalSubprocessor::Initialize(Int_t run, UInt_t startTime, UInt_t endTime)
{
  /// When starting a new run, reads in the pedestals ASCII files.
  
  const Int_t kSystem = AliMUONPreprocessor::kDAQ;
  const char* kId = "PEDESTALS";
  
  delete fPedestals;
  fPedestals = new AliMUON2DMap(kTRUE);
  
  Master()->Log(Form("Reading pedestal files for Run %d startTime %ld endTime %ld",
                     run,startTime,endTime));
  
  TList* sources = Master()->GetFileSources(kSystem,kId);
  TIter next(sources);
  TObjString* o(0x0);
  Int_t n(0);
  
  while ( ( o = static_cast<TObjString*>(next()) ) )
  {
    TString fileName(Master()->GetFile(kSystem,kId,o->GetName()));
    Int_t ok = ReadFile(fileName.Data());
    if (!ok)
    {
      Master()->Log(Form("Could not read file %s",fileName.Data()));
    }
    else
    {
      n += ok;
    }
  }
  
  if (!n)
  {
    Master()->Log("Failed to read any pedestals");
    delete fPedestals;
    fPedestals = 0;
  }
  delete sources;
}

//_____________________________________________________________________________
UInt_t 
AliMUONPedestalSubprocessor::Process(TMap* /*dcsAliasMap*/)
{
  /// Store the pedestals into the CDB
  
  if (!fPedestals) return 0;
    
  Master()->Log("Storing pedestals");
  
  AliCDBMetaData metaData;
	metaData.SetBeamPeriod(0);
	metaData.SetResponsible("MUON TRK");
	metaData.SetComment("Computed by AliMUONPedestalSubprocessor $Id$");
  
  Bool_t validToInfinity = kTRUE;
	UInt_t result = Master()->Store("Calib", "Pedestals", fPedestals, &metaData, 0, validToInfinity);
  
  return result;  
}

//_____________________________________________________________________________
Int_t
AliMUONPedestalSubprocessor::ReadFile(const char* filename)
{
  /// Read the pedestals from an ASCII file.                                  \n
  /// Format of that file is one line per channel :                           \n
  ///-------------------------------------------------------------------------\n
  /// BUS_PATCH MANU_ADDR CHANNEL      MEAN       SIGMA                       \n
  ///-------------------------------------------------------------------------\n
  ///                                                                         \n
  /// Return kFALSE if reading was not successfull.                           \n
  ///
  
  TString sFilename(gSystem->ExpandPathName(filename));
  
  Master()->Log(Form("Reading %s",sFilename.Data()));
  
  std::ifstream in(sFilename.Data());
  if (!in.good()) 
  {
    return 0;
  }
  char line[80];
  Int_t busPatchID, manuID, manuChannel;
  Float_t pedMean, pedSigma;
  static const Int_t kNchannels(64);
  static Bool_t replace(kFALSE);
  Int_t n(0);
  
  while ( in.getline(line,80) )
  {
    if ( line[0] == '/' && line[1] == '/' ) continue;
    std::istringstream sin(line);
    sin >> busPatchID >> manuID >> manuChannel >> pedMean >> pedSigma;
    Int_t detElemID = AliMpDDLStore::Instance()->GetDEfromBus(busPatchID);
    AliDebug(3,Form("BUSPATCH %3d DETELEMID %4d MANU %3d CH %3d MEAN %7.2f SIGMA %7.2f",
             busPatchID,detElemID,manuID,manuChannel,pedMean,pedSigma));
    
    AliMUONVCalibParam* ped = 
      static_cast<AliMUONVCalibParam*>(fPedestals->Get(detElemID,manuID));
    
    if (!ped) 
    {
      ped = new AliMUONCalibParam2F(kNchannels,AliMUONCalibParam2F::InvalidFloatValue());  
      fPedestals->Set(detElemID,manuID,ped,replace);
    }
    ped->SetValueAsFloat(manuChannel,0,pedMean);
    ped->SetValueAsFloat(manuChannel,1,pedSigma);
    ++n;
  }
  in.close();
  return n;
}


//_____________________________________________________________________________
void
AliMUONPedestalSubprocessor::Print(Option_t* opt) const
{
  /// ouput to screen
  AliMUONVDataIterator* it = fPedestals->Iterator();
  AliMUONObjectPair* p;

  while ( ( p = static_cast<AliMUONObjectPair*>(it->Next() ) ) )
  {
    AliMUONVCalibParam* value = static_cast<AliMUONVCalibParam*>(p->Value());
    value->Print(opt);
  }
}