Class to handle calibration data

diff --git a/PHOS/AliPHOSCalibrManager.cxx b/PHOS/AliPHOSCalibrManager.cxx
new file mode 100644 (file)
index 0000000..ccf7d14
--- /dev/null
+++ b/PHOS/AliPHOSCalibrManager.cxx
@@ -0,0 +1,165 @@
+/**************************************************************************
+ * 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.                  *
+ **************************************************************************/
+
+/* $Id$ */
+
+//_________________________________________________________________________
+// Short description  
+//
+//*-- Author :  D.Peressounko (RRC KI & SUBATECH) 
+//////////////////////////////////////////////////////////////////////////////
+
+
+// --- ROOT system ---
+#include "TROOT.h"
+#include "TKey.h"
+#include "TFile.h"
+
+// --- Standard library ---
+#include <fstream>
+
+// --- AliRoot header files ---
+#include "AliPHOSConTableDB.h"
+#include "AliPHOSCalibrManager.h"
+#include "AliPHOSCalibrationData.h"
+ClassImp(AliPHOSCalibrManager)
+
+
+AliPHOSCalibrManager * AliPHOSCalibrManager::fgCaMa = 0 ;
+//____________________________________________________________________________ 
+AliPHOSCalibrManager::AliPHOSCalibrManager():TNamed() 
+{
+  fctdb = 0 ;
+  fFileName="" ;
+  Fatal("Default constructor","Should not use") ;
+}
+//____________________________________________________________________________ 
+AliPHOSCalibrManager::AliPHOSCalibrManager(const char* filename ):
+  TNamed("AliPHOSCalibrManager",filename){
+  fFileName = filename ;         
+  fctdb = 0 ;
+} 
+//____________________________________________________________________________ 
+  AliPHOSCalibrManager::~AliPHOSCalibrManager()
+{
+  TFile * f = gROOT->GetFile(fFileName) ;
+  if(f && f->IsOpen())
+    f->Close() ;
+  if(fctdb)
+    delete fctdb ;
+  fctdb = 0 ;
+}
+//____________________________________________________________________________ 
+AliPHOSCalibrManager * AliPHOSCalibrManager::GetInstance(void)
+{ 
+ return fgCaMa ;
+}
+//____________________________________________________________________________ 
+AliPHOSCalibrManager * AliPHOSCalibrManager::GetInstance(const char* filename )
+{
+  if(!fgCaMa)
+    fgCaMa = new AliPHOSCalibrManager(filename) ;
+  else{
+   if(strcmp(filename,fgCaMa->fFileName.Data())){
+   //Close previous file, construct new Manager
+     delete fgCaMa ;
+     fgCaMa = new AliPHOSCalibrManager(filename) ;
+   }
+  }
+  return fgCaMa ;       
+}
+//____________________________________________________________________________
+void AliPHOSCalibrManager::ReadFromASCII(AliPHOSCalibrationData &data,const char * filename){
+  //reads calibration parameters from ascii file
+
+  if(!fctdb){
+    Error("ReadCalibrationParameters", "Specify Connections Table Database first") ;
+    return ;
+  }
+  ifstream file(filename) ; 
+  for(Int_t i = 1; i<=64; i++){
+    Float_t inp ;
+    file >> inp  ;      
+    data.SetData(fctdb->Raw2AbsId(i),static_cast<Float_t>(inp));
+  }
+  file.close();   
+}
+//____________________________________________________________________________
+void AliPHOSCalibrManager::ReadFromRoot(AliPHOSCalibrationData & data,Int_t run){
+  //reads calibration parameters from root file
+
+  //construct name
+  TString searchname(data.GetCategory()) ;
+  searchname+='_' ;
+  searchname+=data.GetVersion() ;
+  searchname+='_' ;
+  TFile * file = gROOT->GetFile(fFileName) ;
+  if(!file || !file->IsOpen())
+    file = TFile::Open(fFileName) ;
+  if(!file->IsOpen()){
+    Error("ReadFromRoot","Can not open file %s\n",fFileName.Data() ) ;
+    return ;
+  }
+  TList * list = file->GetListOfKeys() ;
+  TIter next(list) ;
+  TKey * key ;
+  while((key=((TKey*)next()))){
+    TString kname(key->GetName()) ;
+    if(kname.BeginsWith(searchname)){
+      TString sbegin = kname(searchname.Sizeof()-1,
+                            kname.Last('_')-searchname.Sizeof()+1) ;
+      TString send   = kname(kname.Last('_')+1,kname.Sizeof()) ;
+      Int_t begin,end ;
+      if(sscanf(sbegin.Data(),"%d",&begin) && 
+        sscanf(send.Data(),"%d",&end)){
+       if(begin<=run && end >=run){
+         data=(*dynamic_cast<AliPHOSCalibrationData*>(file->Get(key->GetName()) ));
+         return ;
+       }
+      }
+    }
+  }
+  Error("ReadFromRoot","Can not find key %s for run %d in file %s \n",searchname.Data(),run,fFileName.Data()) ;
+}
+//____________________________________________________________________________
+void AliPHOSCalibrManager::WriteData(AliPHOSCalibrationData * data){
+  TFile * file = gROOT->GetFile(fFileName) ;
+  if(!file || !file->IsOpen()){
+    file = TFile::Open(fFileName,"UPDATE") ;
+    if(!file->IsOpen()){
+      Error("WriteData","Can not open file %s\n",fFileName.Data() ) ;
+      return ;
+     }
+  }
+  file->cd() ;
+  TString kname(data->GetCategory()) ;
+  kname+='_';
+  kname+=data->GetVersion() ;
+  kname+='_';
+  Int_t begin,end ;
+  data->GetValidityRange(begin,end) ;
+  kname+=begin ;
+  kname+='_' ;
+  kname+=end ;
+  data->Write(kname,TObject::kOverwrite) ;
+  
+}
+//____________________________________________________________________________
+AliPHOSCalibrManager& AliPHOSCalibrManager::operator=(AliPHOSCalibrManager const & cdb)
+{
+  //
+  fFileName = cdb.fFileName;
+  return *this ;
+}

diff --git a/PHOS/AliPHOSCalibrManager.h b/PHOS/AliPHOSCalibrManager.h
new file mode 100644 (file)
index 0000000..3288bc8
--- /dev/null
+++ b/PHOS/AliPHOSCalibrManager.h
@@ -0,0 +1,57 @@
+#ifndef ALIPHOSCALIBRMANAGER_H
+#define ALIPHOSCALIBRMANAGER_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice                               */
+
+
+
+//_________________________________________________________________________    
+//                  
+//*-- Author: D.Peressounko (RRC KI & SUBATECH)
+
+
+// --- ROOT system ---
+#include "TNamed.h"
+#include "TArrayF.h" 
+#include "TString.h" 
+
+// --- Standard library ---
+
+// --- AliRoot header files ---
+class AliPHOSConTableDB ;
+class AliPHOSCalibrationData ;
+
+class AliPHOSCalibrManager:public TNamed {
+
+public:
+  AliPHOSCalibrManager() ;          // ctor
+  virtual ~AliPHOSCalibrManager() ; // dtor
+  static AliPHOSCalibrManager * GetInstance() ;
+  static AliPHOSCalibrManager * GetInstance(const char * dbfilename ) ; 
+
+  //To know correspondance when reads list of gains from ascii file 
+  void SetConTableDB(AliPHOSConTableDB * ctdb){fctdb = ctdb; }
+
+  //Read gains of pedestals from ascii file
+  void ReadFromASCII(AliPHOSCalibrationData & data,const char * filename = "gains.dat") ;
+
+  void ReadFromRoot(AliPHOSCalibrationData &data,Int_t run) ;
+
+  void WriteData(AliPHOSCalibrationData *data) ;
+
+  AliPHOSCalibrManager & operator = (const AliPHOSCalibrManager & ) ;
+
+private:
+  AliPHOSCalibrManager(const char* filename) ;          
+
+private:
+  TString   fFileName ;
+  AliPHOSConTableDB * fctdb ;  //!
+  static AliPHOSCalibrManager * fgCaMa ; // pointer to the unique instance of singleton
+           
+ 
+  ClassDef(AliPHOSCalibrManager,1)  // description 
+
+};
+
+#endif // AliPHOSCALIBRMANAGER_H