From 357cd93491f686aedf432f7eaf37352a8096950a Mon Sep 17 00:00:00 2001
From: dainese <dainese@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Wed, 12 Nov 2008 21:46:23 +0000
Subject: [PATCH] Check for primary vertex type

---
 PWG3/vertexingHF/AliAnalysisVertexingHF.cxx | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/PWG3/vertexingHF/AliAnalysisVertexingHF.cxx b/PWG3/vertexingHF/AliAnalysisVertexingHF.cxx
index 02a58203af6..ea22bc7d345 100644
--- a/PWG3/vertexingHF/AliAnalysisVertexingHF.cxx
+++ b/PWG3/vertexingHF/AliAnalysisVertexingHF.cxx
@@ -224,8 +224,20 @@ void AliAnalysisVertexingHF::FindCandidates(AliVEvent *event,
 
   trkEntries = (Int_t)event->GetNumberOfTracks();
   AliDebug(1,Form(" Number of tracks: %d",trkEntries));
+
+  if(trkEntries<2) {
+    AliDebug(1,Form(" Not enough tracks: %d",trkEntries));
+    return;
+  }
     
-  if(trkEntries<2 || !event->GetPrimaryVertex()) {
+  const AliVVertex *primary = event->GetPrimaryVertex();
+  if(!primary) {
+    AliDebug(1," No primary vertex from tracks");
+    return;
+  }
+  TString primTitle = primary->GetTitle();
+  if(!primTitle.Contains("VertexerTracks")) {
+    AliDebug(1," No primary vertex from tracks");
     return;
   }
 
-- 
2.43.5