OADB classes and root files for the physics selection

[u/mrichter/AliRoot.git] / STEER / AliAODInputHandler.cxx

diff --git a/STEER/AliAODInputHandler.cxx b/STEER/AliAODInputHandler.cxx
index 26e305869880461155bffa1b7aaf73217a1ed72f..fd927cf94121ab4288c62816c7a5796448000dc1 100644 (file)
--- a/STEER/AliAODInputHandler.cxx
+++ b/STEER/AliAODInputHandler.cxx
@@ -20,6 +20,7 @@
 //     Author: Andreas Morsch, CERN
 //-------------------------------------------------------------------------
 
+#include <TSystem.h>
 #include <TTree.h>
 #include <TList.h>
 #include <TNamed.h>
@@ -29,6 +30,8 @@
 #include "AliAODInputHandler.h"
 #include "AliAODEvent.h"
 #include "AliVCuts.h"
+#include "AliMCEvent.h"
+#include "AliAODpidUtil.h"
 
 ClassImp(AliAODInputHandler)
 
@@ -40,7 +43,9 @@ AliAODInputHandler::AliAODInputHandler() :
     fEvent(0),
     fMCEvent(new AliMCEvent()),
     fFriends(new TList()),
+    fAODpidUtil(0x0),
     fMergeEvents(kFALSE),
+    fFriendsConnected(kFALSE),
     fFileToMerge(0),
     fTreeToMerge(0),
     fAODEventToMerge(0),
@@ -56,7 +61,9 @@ AliAODInputHandler::AliAODInputHandler(const char* name, const char* title):
   fEvent(0),
   fMCEvent(new AliMCEvent()),
   fFriends(new TList()),
+  fAODpidUtil(0x0),
   fMergeEvents(kFALSE),
+  fFriendsConnected(kFALSE),
   fFileToMerge(0),
   fTreeToMerge(0),
   fAODEventToMerge(0),
@@ -79,58 +86,35 @@ AliAODInputHandler::~AliAODInputHandler()
     delete fHistStatistics[1];
     fHistStatistics[1] = 0;
   }
+  delete fAODpidUtil;
 }
 
 //______________________________________________________________________________
 Bool_t AliAODInputHandler::Init(TTree* tree, Option_t* opt)
 {
     // Initialisation necessary for each new tree
-  if (!fMergeEvents) {
     fTree = tree;
-    TIter next(fFriends);
-    TNamed* obj;
-       
     if (!fTree) return kFALSE;
-    fTree->GetEntry(0);
-    TString aodTreeFName,aodFriendTreeFName;
-    TTree *ttree = fTree->GetTree();
-    if (!ttree) ttree = fTree;
-    aodTreeFName = ttree->GetCurrentFile()->GetName();
-
-    while((obj = (TNamed*)next())) {
-      aodFriendTreeFName = aodTreeFName;
-      aodFriendTreeFName.ReplaceAll("AliAOD.root",obj->GetName());
-      aodFriendTreeFName.ReplaceAll("AliAODs.root",obj->GetName());
-      ttree->AddFriend("aodTree", aodFriendTreeFName.Data());
-    }
-  } else {
-  // Friends have to be merged
-    TNamed* filename = (TNamed*) (fFriends->At(0));
-    fFileToMerge = new TFile(filename->GetName());
-        if (fFileToMerge) {
-      fFileToMerge->GetObject("aodTree", fTreeToMerge);
-          if (!fAODEventToMerge) fAODEventToMerge = new AliAODEvent();
-          fAODEventToMerge->ReadFromTree(fTreeToMerge);
-    }
-  }
+    fTree->GetEntries();
+    ConnectFriends();
 
-  SwitchOffBranches();
-  SwitchOnBranches();
+    SwitchOffBranches();
+    SwitchOnBranches();
     
-  // Get pointer to AOD event
-  if (!fEvent) fEvent = new AliAODEvent();
-
-  fEvent->ReadFromTree(fTree);
-  
-  if (fMixingHandler) fMixingHandler->Init(tree, opt);
-
-  return kTRUE;
+    // Get pointer to AOD event
+    if (!fEvent) fEvent = new AliAODEvent();
+    
+    fEvent->ReadFromTree(fTree);
+    
+    if (fMixingHandler) fMixingHandler->Init(tree, opt);
+    
+    return kTRUE;
 }
 
 //______________________________________________________________________________
 Bool_t AliAODInputHandler::BeginEvent(Long64_t entry)
 {
-    //
+    // Begin event
     TClonesArray* mcParticles = (TClonesArray*) (fEvent->FindListObject("mcparticles"));
     if (mcParticles) fMCEvent->SetParticleArray(mcParticles);
     if (fTreeToMerge) fTreeToMerge->GetEntry(entry + fMergeOffset);
@@ -147,11 +131,25 @@ Bool_t AliAODInputHandler::Notify(const char* path)
 {
   // Notifaction of directory change
   if (fMixingHandler) fMixingHandler->Notify(path);
+  if (!fFriendsConnected) {
+      ConnectFriends();
+      fEvent->ReadFromTree(fTree, "reconnect");
+  }
+  fFriendsConnected = kFALSE;
+    
   TTree *ttree = fTree->GetTree();
   if (!ttree) ttree = fTree;
-  TString statFname = ttree->GetCurrentFile()->GetName();
-  statFname.ReplaceAll("AliAOD.root", "EventStat_temp.root");
-  TFile *statFile = TFile::Open(statFname, "READ");
+  TString statFname(ttree->GetCurrentFile()->GetName());
+  Int_t indarchive = statFname.Index("#");
+  if (indarchive<0) {
+     statFname = gSystem->DirName(statFname);
+     statFname += "/";
+  } else {
+     statFname.Remove(indarchive+1);
+  }   
+  statFname += "EventStat_temp.root";
+  TFile *statFile = 0;
+  if (IsCheckStatistics()) statFile = TFile::Open(statFname, "READ");
   if (statFile) {
      TList *list = (TList*)statFile->Get("cstatsout");
      if (list) {
@@ -167,10 +165,15 @@ Bool_t AliAODInputHandler::Notify(const char* path)
               tmplist.Add(hBin0);
               if (fHistStatistics[1] && hBin0) fHistStatistics[1]->Merge(&tmplist);
            } else {
-              fHistStatistics[0] = hAll;
-              fHistStatistics[1] = hBin0;
+             if (hAll && hBin0) {
+                fHistStatistics[0] = static_cast<TH2F*>(hAll->Clone());
+                fHistStatistics[1] = static_cast<TH2F*>(hBin0->Clone());
+                fHistStatistics[0]->SetDirectory(0);
+                fHistStatistics[1]->SetDirectory(0);
+             }   
            }   
         }
+        delete list;
      }
      delete statFile;
   }
@@ -211,3 +214,45 @@ TObject *AliAODInputHandler::GetStatistics(Option_t *option) const
    if (opt=="BIN0") return fHistStatistics[1];
    return fHistStatistics[0];
 }   
+
+void AliAODInputHandler::ConnectFriends()
+{
+    // Connect the friend trees 
+    if (!fMergeEvents) {
+       TIter next(fFriends);
+       TNamed* obj;
+       TString aodTreeFName,aodFriendTreeFName;
+       TTree *ttree = fTree->GetTree();
+       if (!ttree) ttree = fTree;
+       aodTreeFName = ttree->GetCurrentFile()->GetName();
+       
+       while((obj = (TNamed*)next())) {
+           aodFriendTreeFName = aodTreeFName;
+           aodFriendTreeFName.ReplaceAll("AliAOD.root",obj->GetName());
+           aodFriendTreeFName.ReplaceAll("AliAODs.root",obj->GetName());
+           ttree->AddFriend("aodTree", aodFriendTreeFName.Data());
+       }
+    } else {
+       // Friends have to be merged
+       TNamed* filename = (TNamed*) (fFriends->At(0));
+       fFileToMerge = new TFile(filename->GetName());
+       if (fFileToMerge) {
+           fFileToMerge->GetObject("aodTree", fTreeToMerge);
+           if (!fAODEventToMerge) fAODEventToMerge = new AliAODEvent();
+           fAODEventToMerge->ReadFromTree(fTreeToMerge);
+       }
+    }
+    fFriendsConnected = kTRUE;
+}
+
+//______________________________________________________________________________
+void AliAODInputHandler::CreatePIDResponse(Bool_t isMC/*=kFALSE*/)
+{
+  //
+  // create the pid response object if it does not exist yet
+  //
+  if (fAODpidUtil) return;
+  fAODpidUtil=new AliAODpidUtil(isMC);
+  
+}
+