protection added in the Terminate as suggested by A.Gheata

[u/mrichter/AliRoot.git] / PWG2 / SPECTRA / AliAnalysisTaskCheckCascade.cxx

diff --git a/PWG2/SPECTRA/AliAnalysisTaskCheckCascade.cxx b/PWG2/SPECTRA/AliAnalysisTaskCheckCascade.cxx
index 455180adc14dd656e442e4c6aebf66a8778b4ebf..f6c1a010caf0bea4b8a4c02410a094b621358b61 100644 (file)
--- a/PWG2/SPECTRA/AliAnalysisTaskCheckCascade.cxx
+++ b/PWG2/SPECTRA/AliAnalysisTaskCheckCascade.cxx
@@ -1170,20 +1170,27 @@ void AliAnalysisTaskCheckCascade::Terminate(Option_t *)
   // Draw result to the screen
   // Called once at the end of the query
 
-  fHistTrackMultiplicity = dynamic_cast<TH1F*> (   ((TList*)GetOutputData(1))->FindObject("fHistTrackMultiplicity") );
-  if (!fHistTrackMultiplicity) {
-    Printf("ERROR: fHistTrackMultiplicity not available");
-    return;
-  }
+  TList *cRetrievedList = 0x0;
+         cRetrievedList = (TList*)GetOutputData(1);
+       if(!cRetrievedList){
+               Printf("ERROR - AliAnalysisTaskCheckCascade: ouput data container list not available\n");
+               return;
+       }
+
+  fHistTrackMultiplicity = dynamic_cast<TH1F*> (   cRetrievedList->FindObject("fHistTrackMultiplicity") );
+       if (!fHistTrackMultiplicity) {
+               Printf("ERROR - AliAnalysisTaskCheckCascade: fHistTrackMultiplicity not available\n");
+               return;
+       }
  
-  fHistCascadeMultiplicity = dynamic_cast<TH1F*> ( ((TList*)GetOutputData(1))->FindObject("fHistCascadeMultiplicity"));
-  if (!fHistCascadeMultiplicity) {
-    Printf("ERROR: fHistCascadeMultiplicity not available");
-    return;
-  }
+  fHistCascadeMultiplicity = dynamic_cast<TH1F*> ( cRetrievedList->FindObject("fHistCascadeMultiplicity"));
+       if (!fHistCascadeMultiplicity) {
+               Printf("ERROR - AliAnalysisTaskCheckCascade: fHistCascadeMultiplicity not available\n");
+               return;
+       }
    
-  TCanvas *c2 = new TCanvas("AliAnalysisTaskCheckCascade","Multiplicity",10,10,510,510);
-  c2->cd(1)->SetLogy();
+  TCanvas *canCheckCascade = new TCanvas("AliAnalysisTaskCheckCascade","Multiplicity",10,10,510,510);
+  canCheckCascade->cd(1)->SetLogy();
 
   fHistTrackMultiplicity->SetMarkerStyle(22);
   fHistTrackMultiplicity->DrawCopy("E");