From 243e7b720bd28c5ce076ad81a6f7676a0e4c6154 Mon Sep 17 00:00:00 2001
From: cvetan <cvetan@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Fri, 4 Sep 2009 19:52:00 +0000
Subject: [PATCH] Finally a working version of raw-data event cloning. It
 turned out to be quite difficult to overcome root TRefs and TBranchRef
 schema.

---
 RAW/AliRawEquipment.cxx   | 12 ++++--------
 RAW/AliRawEquipment.h     |  2 +-
 RAW/AliRawEquipmentV2.cxx |  9 ++++-----
 RAW/AliRawEquipmentV2.h   |  2 +-
 RAW/AliRawReaderRoot.cxx  | 12 +++++++++---
 RAW/AliRawVEquipment.h    |  2 +-
 6 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/RAW/AliRawEquipment.cxx b/RAW/AliRawEquipment.cxx
index e9291c031fc..fc8e5873ea0 100644
--- a/RAW/AliRawEquipment.cxx
+++ b/RAW/AliRawEquipment.cxx
@@ -95,17 +95,13 @@ AliRawEquipment::~AliRawEquipment()
 }
 
 //______________________________________________________________________________
-void AliRawEquipment::CloneRawData()
+void AliRawEquipment::CloneRawData(const AliRawData *rawData)
 {
-  // Load raw-data part of the object via the TRef
-  // flush the Tref and clone the raw data
+  // Clone the input raw data and
+  // flush the TRef
 
-  if (!fRawData) {
-    if (fRawDataRef.IsValid())
-      fRawData = (AliRawData*)fRawDataRef.GetObject();
-  }
   fRawDataRef = NULL;
-  if (fRawData) fRawData = (AliRawData*)fRawData->Clone();
+  if (rawData) rawData = (AliRawData*)rawData->Clone();
 }
 
 //______________________________________________________________________________
diff --git a/RAW/AliRawEquipment.h b/RAW/AliRawEquipment.h
index a4c51a66ed9..3f6a1b20474 100644
--- a/RAW/AliRawEquipment.h
+++ b/RAW/AliRawEquipment.h
@@ -52,7 +52,7 @@ public:
    virtual AliRawEquipmentHeader *GetEquipmentHeader();
    virtual AliRawData            *GetRawData();
 
-   virtual void                   CloneRawData();
+   virtual void                   CloneRawData(const AliRawData *rawData);
 
  private:
    AliRawEquipmentHeader *fEqpHdr;      // equipment header
diff --git a/RAW/AliRawEquipmentV2.cxx b/RAW/AliRawEquipmentV2.cxx
index f03bfe16153..8bd2aed0674 100644
--- a/RAW/AliRawEquipmentV2.cxx
+++ b/RAW/AliRawEquipmentV2.cxx
@@ -117,12 +117,11 @@ AliRawData *AliRawEquipmentV2::NextRawData(AliRawDataArrayV2 *array)
 }
 
 //______________________________________________________________________________
-void AliRawEquipmentV2::CloneRawData()
+void AliRawEquipmentV2::CloneRawData(const AliRawData *rawData)
 {
-  // Load raw-data part of the object via the TRef
-  // flush the Tref and clone the raw data
+  // Clone the input raw data and
+  // flush the TRef
 
-  GetRawData();
   fRawDataRef = NULL;
-  if (fRawData) fRawData = (AliRawData*)fRawData->Clone();
+  if (rawData) fRawData = (AliRawData*)rawData->Clone();
 }
diff --git a/RAW/AliRawEquipmentV2.h b/RAW/AliRawEquipmentV2.h
index cbd311f2e85..9c7b79e6244 100644
--- a/RAW/AliRawEquipmentV2.h
+++ b/RAW/AliRawEquipmentV2.h
@@ -51,7 +51,7 @@ public:
    void                           Reset();
    AliRawData                    *NextRawData(AliRawDataArrayV2 *array);
 
-   virtual void                   CloneRawData();
+   virtual void                   CloneRawData(const AliRawData *rawData);
 
 private:
    AliRawEquipmentHeader  fEqpHdr;      // equipment header
diff --git a/RAW/AliRawReaderRoot.cxx b/RAW/AliRawReaderRoot.cxx
index 6cd69416364..9b840f0e72e 100644
--- a/RAW/AliRawReaderRoot.cxx
+++ b/RAW/AliRawReaderRoot.cxx
@@ -669,16 +669,22 @@ AliRawReader* AliRawReaderRoot::CloneSingleEvent() const
   // access to the current raw data within
   // several threads (online event display/reco)
 
-  if (GetEvent()) {
+  if (fEvent) {
     // Root formatted raw data
-    AliRawVEvent *gdcRootEvent = (AliRawVEvent*) GetEvent()->Clone();
+    AliRawVEvent *gdcRootEvent = (AliRawVEvent*)fEvent->Clone();
     for (Int_t ldcCounter=0; ldcCounter < gdcRootEvent->GetNSubEvents(); ldcCounter++) {
       AliRawVEvent *ldcRootEvent = gdcRootEvent->GetSubEvent(ldcCounter);
+      AliRawVEvent *subEvent = fEvent->GetSubEvent(ldcCounter);
       for (Int_t eqCounter=0; eqCounter < ldcRootEvent->GetNEquipments(); eqCounter++) {
 	AliRawVEquipment *equipment=ldcRootEvent->GetEquipment(eqCounter);
-	equipment->CloneRawData();
+	AliRawVEquipment *eq = subEvent->GetEquipment(eqCounter);
+	equipment->CloneRawData(eq->GetRawData());
       }
     }
+    // Reset original event and newly
+    // produced one
+    gdcRootEvent->GetSubEvent(-1);
+    fEvent->GetSubEvent(-1);
     return new AliRawReaderRoot(gdcRootEvent);
   }
   return NULL;
diff --git a/RAW/AliRawVEquipment.h b/RAW/AliRawVEquipment.h
index 6cfad5ff13d..d7c233a59ba 100644
--- a/RAW/AliRawVEquipment.h
+++ b/RAW/AliRawVEquipment.h
@@ -46,7 +46,7 @@ public:
    virtual AliRawEquipmentHeader *GetEquipmentHeader() = 0;
    virtual AliRawData            *GetRawData() = 0;
 
-   virtual void                   CloneRawData() = 0;
+   virtual void                   CloneRawData(const AliRawData *rawData) = 0;
 
 private:
 
-- 
2.43.5