added init here

[u/mrichter/AliRoot.git] / PWGGA / EMCALTasks / AliAnalysisTaskEmcal.cxx

diff --git a/PWGGA/EMCALTasks/AliAnalysisTaskEmcal.cxx b/PWGGA/EMCALTasks/AliAnalysisTaskEmcal.cxx
index dce147447ba96006ae1a4774c3f84e5847881762..71049aaa6b44e5e7aaa8ac069bc79c79d2aad1b9 100644 (file)
--- a/PWGGA/EMCALTasks/AliAnalysisTaskEmcal.cxx
+++ b/PWGGA/EMCALTasks/AliAnalysisTaskEmcal.cxx
@@ -123,6 +123,27 @@ AliAnalysisTaskEmcal::BeamType AliAnalysisTaskEmcal::GetBeamType()
   }  
 }
 
+void AliAnalysisTaskEmcal::Init()
+{
+  // Init the analysis.
+
+  if (!fCaloName.IsNull() && (fAnaType == kEMCAL) && !fCaloClusters) {
+    fCaloClusters =  dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fCaloName));
+    if (!fCaloClusters) {
+      AliWarning(Form("%s: Could not retrieve clusters %s!", GetName(), fCaloName.Data())); 
+    }
+  }
+
+  if (!fTracksName.IsNull() && !fTracks) {
+    fTracks = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fTracksName));
+    if (!fTracks) {
+      AliWarning(Form("%s: Could not retrieve tracks %s!", GetName(), fTracksName.Data())); 
+    }
+  }
+
+  SetInitialized();
+}
+
 //________________________________________________________________________
 Bool_t AliAnalysisTaskEmcal::RetrieveEventObjects()
 {
@@ -161,24 +182,9 @@ Bool_t AliAnalysisTaskEmcal::RetrieveEventObjects()
     fCentBin = 0;
   }
 
-  if (!fCaloName.IsNull() && (fAnaType == kEMCAL) && !fCaloClusters) {
-    fCaloClusters =  dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fCaloName));
-    if (!fCaloClusters) {
-      AliWarning(Form("%s: Could not retrieve clusters %s!", GetName(), fCaloName.Data())); 
-    }
-  }
-
-  if (!fTracksName.IsNull() && !fTracks) {
-    fTracks = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fTracksName));
-    if (!fTracks) {
-      AliWarning(Form("%s: Could not retrieve tracks %s!", GetName(), fTracksName.Data())); 
-    }
-  }
-
   return kTRUE;
 }
 
-
 //________________________________________________________________________
 Bool_t AliAnalysisTaskEmcal::AcceptCluster(AliVCluster *clus, Bool_t acceptMC) const
 {
@@ -244,6 +250,9 @@ void AliAnalysisTaskEmcal::UserExec(Option_t *)
 {
   // Main loop, called for each event.
 
+  if (!fInitialized) 
+    Init();
+
   if (!RetrieveEventObjects())
     return;