Possibility to run analysis train inside AliReconstruction (Andrei)

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

diff --git a/STEER/STEER/AliRecoInputHandler.cxx b/STEER/STEER/AliRecoInputHandler.cxx
new file mode 100644 (file)
index 0000000..0968555
--- /dev/null
+++ b/STEER/STEER/AliRecoInputHandler.cxx
@@ -0,0 +1,53 @@
+/**************************************************************************
+ * Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
+ *                                                                        *
+ * Author: The ALICE Off-line Project.                                    *
+ * Contributors are mentioned in the code where appropriate.              *
+ *                                                                        *
+ * Permission to use, copy, modify and distribute this software and its   *
+ * documentation strictly for non-commercial purposes is hereby granted   *
+ * without fee, provided that the above copyright notice appears in all   *
+ * copies and that both the copyright notice and this permission notice   *
+ * appear in the supporting documentation. The authors make no claims     *
+ * about the suitability of this software for any purpose. It is          *
+ * provided "as is" without express or implied warranty.                  *
+ **************************************************************************/
+
+//-------------------------------------------------------------------------
+//     Event handler for reconstruction
+//     Author: Andrei Gheata, CERN
+//-------------------------------------------------------------------------
+
+#include "AliRecoInputHandler.h"
+#include "AliVCuts.h"
+
+ClassImp(AliRecoInputHandler)
+
+//______________________________________________________________________________
+AliRecoInputHandler::AliRecoInputHandler(const char* name, const char* title) 
+  : AliESDInputHandler(name,title)
+{
+// Named constructor
+}
+
+//______________________________________________________________________________
+Bool_t AliRecoInputHandler::Init(TTree* tree,  Option_t* opt)
+{
+// Initialisation necessary for each new tree. In reco case this is once.
+   fAnalysisType = opt;
+   fTree = tree;
+   if (!fTree) return kFALSE;
+   fNEvents = fTree->GetEntries();
+   return kTRUE;
+}  
+//______________________________________________________________________________
+Bool_t AliRecoInputHandler::BeginEvent(Long64_t)
+{
+// Called at the beginning of every event   
+  static Bool_t called = kFALSE;
+  if (!called && fEventCuts && IsUserCallSelectionMask())
+     AliInfo(Form("The ESD input handler expects that the first task calls AliESDInputHandler::CheckSelectionMask() %s", fEventCuts->ClassName()));
+  fNewEvent = kTRUE;
+  called = kTRUE;
+  return kTRUE;
+}