PWGLF/FORWARD/analysis2/trains/MakeFMDELossTrain.C

   1 /**
   2  * @file   MakeFMDELossTrain.C
   3  * @author Christian Holm Christensen <cholm@master.hehi.nbi.dk>
   4  * @date   Fri Jun  1 13:53:02 2012
   5  *
   6  * @brief
   7  *
   8  *
   9  * @ingroup pwglf_forward_trains_specific
  10  */
  11 #include "TrainSetup.C"
  12
  13 //====================================================================
  14 /**
  15  * Analysis train to do energy loss fits
  16  *
  17  * @ingroup pwglf_forward_trains_specific
  18  * @ingroup pwglf_forward_eloss
  19  */
  20 class MakeFMDELossTrain : public TrainSetup
  21 {
  22 public:
  23   /**
  24    * Constructor.
  25    *
  26    * @param name     Name of train
  27    */
  28   MakeFMDELossTrain(const char* name  = "FMD Energy Loss")
  29     : TrainSetup(name)
  30   {
  31     fOptions.Add("cent", "Use centrality");
  32     fOptions.Add("only-mb", "Only collect statistics from MB events");
  33     fOptions.Add("residuals", "MODE", "Optional calculation of residuals", "");
  34     fOptions.Set("type", "ESD");
  35   }
  36 protected:
  37   //------------------------------------------------------------------
  38   /**
  39    * Create the analysis manager
  40    *
  41    * @param name Name of the analysis
  42    *
  43    * @return Created analysis manager
  44    */
  45   virtual AliAnalysisManager* CreateAnalysisManager(const char* name)
  46   {
  47     AliAnalysisManager* mgr = TrainSetup::CreateAnalysisManager(name);
  48     // mgr->SetAutoBranchLoading(false);
  49     return mgr;
  50   }
  51   //__________________________________________________________________
  52   /**
  53    * Create the tasks
  54    *
  55    * @param mgr  Analysis manager
  56    */
  57   void CreateTasks(AliAnalysisManager* mgr)
  58   {
  59     // --- Output file name ------------------------------------------
  60     AliAnalysisManager::SetCommonFileName("forward_eloss.root");
  61
  62     // --- Load libraries/pars ---------------------------------------
  63     fHelper->LoadLibrary("PWGLFforward2");
  64
  65     // --- Set load path ---------------------------------------------
  66     gROOT->SetMacroPath(Form("%s:$(ALICE_ROOT)/PWGLF/FORWARD/analysis2",
  67                              gROOT->GetMacroPath()));
  68
  69     // --- Check if this is MC ---------------------------------------
  70     Bool_t   mc     = HasMCHandler();
  71     Bool_t   cent   = fOptions.Has("cent");
  72     Bool_t   onlyMB = fOptions.AsBool("only-mb");
  73     Int_t    verb   = fOptions.AsInt("verbose");
  74     TString  resi   = "";
  75     if (fOptions.Has("residuals")) resi = fOptions.Get("residuals");
  76
  77     // --- Add the task ----------------------------------------------
  78     AddTask("AddTaskFMDELoss.C", Form("%d,%d,%d,%d,\"%s\"",
  79                                       mc, cent, onlyMB, verb, resi.Data()));
  80   }
  81   /**
  82    * Create entrality selection if enabled
  83    *
  84    * @param mc   Whether this is MC or not
  85    * @param mgr  Analysis manager
  86    */
  87   virtual void CreateCentralitySelection(Bool_t mc, AliAnalysisManager* mgr)
  88   {
  89     if (!fOptions.Has("cent")) return;
  90
  91     const char* name = "CentralitySelection";
  92     gROOT->Macro("AddTaskCentrality.C");
  93     AliCentralitySelectionTask* ctask =
  94       dynamic_cast<AliCentralitySelectionTask*>(mgr->GetTask(name));
  95     if (!ctask) return;
  96     // ctask->SetPass(fESDPass);
  97     if (mc) ctask->SetMCInput();
  98   }
  99   /**
 100    * Crete output handler - we don't want one here.
 101    *
 102    * @return 0
 103    */
 104   AliVEventHandler* CreateOutputHandler(UShort_t) { return 0; }
 105
 106   //__________________________________________________________________
 107   const char* ClassName() const { return "MakeFMDELossTrain"; }
 108   //__________________________________________________________________
 109   /**
 110    * Overloaded to create new Extract.C in the output
 111    * directory
 112    *
 113    * @param asShellScript
 114    */
 115   void SaveSetup(Bool_t asShellScript)
 116   {
 117     TrainSetup::SaveSetup(asShellScript);
 118     SaveExtract();
 119     SaveSummarize();
 120   }
 121   void SaveExtract()
 122   {
 123     std::ofstream f("Extract.C");
 124     if (!f) {
 125       Error("SaveSetup", "Failed to open Extract.C");
 126       return;
 127     }
 128     f << "// Generated by " << ClassName() << "\n"
 129       << "void Extract()\n"
 130       << "{\n"
 131       << "  const char* fwd=\"$ALICE_ROOT/PWGLF/FORWARD/analysis2\";\n"
 132       << "  gROOT->LoadMacro(Form(\"%s/corrs/ExtractELoss.C\",fwd));\n"
 133       << "  ExtractELoss(\"forward_eloss.root\","
 134       <<  fHelper->IsMC() << ");\n"
 135       << "}\n"
 136       << "// EOF" << std::endl;
 137     f.close();
 138   }
 139   void SaveSummarize()
 140   {
 141     std::ofstream f("Summarize.C");
 142     if (!f) {
 143       Error("SaveSummarize", "Failed to open Summarize.C script");
 144       return;
 145     }
 146     f << "// Generated by " << ClassName() << "\n"
 147       << "//\n"
 148       << "void Summarize(Bool_t mc=false,\n"
 149       << "               const char* filename=\"forward_eloss.root\")\n"
 150       << "{\n"
 151       << "  const char* fwd=\"$ALICE_ROOT/PWGLF/FORWARD/analysis2\";\n"
 152       << "  gROOT->LoadMacro(Form(\"%s/corrs/DrawCorrELoss.C\",fwd));\n"
 153       << "  DrawCorrELoss(mc,filename);\n"
 154       << "}\n"
 155       << "// EOF" << std::endl;
 156     f.close();
 157   }
 158   void PostShellCode(std::ostream& f)
 159   {
 160     Bool_t   mc   = HasMCHandler();
 161     f << "  echo \"=== Extracting Corrections ...\"\n"
 162       << "  aliroot -l -b -q ${prefix}Extract.C\n"
 163       << "  echo \"=== Summarizing results ...\"\n"
 164       << "  aliroot -l -b -q ${prefix}Summarize.C\\(" << mc << "\\)\n"
 165       << "  if test x$dest = x ; then return ; fi\n"
 166       << "  echo \"=== Uploading to ${dest} ...\"\n"
 167       << "  aliroot -l -b -q Upload.C\\(\\\"${dest}\\\"\\);\n"
 168       << std::endl;
 169   }
 170 };
 171
 172 //
 173 // EOF
 174 //