1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 ///////////////////////////////////////////////////////////////////////////////
18 /// This is a class for reading raw data from a root chain.
19 /// There are two constructors available - one from a text file containing the
20 /// list of root raw-data files to be processed and one directly from
23 /// cvetan.cheshkov@cern.ch 29/07/2008
25 ///////////////////////////////////////////////////////////////////////////////
28 #include <TFileCollection.h>
30 #include "AliRawReaderChain.h"
31 #include "AliRawEvent.h"
33 ClassImp(AliRawReaderChain)
35 AliRawReaderChain::AliRawReaderChain() :
39 // default constructor
42 AliRawReaderChain::AliRawReaderChain(TString listFileName) :
46 // create raw-reader objects which takes as an input a root chain
47 // from the file list found in 'listFileName'
49 TFileCollection collection("RAW",
50 "Collection with raw-data files",
53 TChain* fChain = new TChain("RAW");
54 if (!fChain->AddFileInfoList((TCollection*)(collection.GetList()))) {
55 Error("AliRawReaderChain","Bad file list in collection, the chain is empty");
59 fChain->SetBranchStatus("*",0);
60 fChain->SetBranchStatus("rawevent",1);
62 fEvent = new AliRawEvent;
63 fChain->SetBranchAddress("rawevent", &fEvent);
66 AliRawReaderChain::AliRawReaderChain(TFileCollection *collection) :
70 // create raw-reader objects which takes as an input a root chain
71 // from a root file collection
73 TChain* fChain = new TChain("RAW");
74 if (!fChain->AddFileInfoList((TCollection*)(collection->GetList()))) {
75 Error("AliRawReaderChain","Bad file list in collection, the chain is empty");
79 fChain->SetBranchStatus("*",0);
80 fChain->SetBranchStatus("rawevent",1);
82 fEvent = new AliRawEvent;
83 fChain->SetBranchAddress("rawevent", &fEvent);
86 AliRawReaderChain::AliRawReaderChain(const AliRawReaderChain& rawReader) :
87 AliRawReaderRoot(rawReader),
88 fChain(rawReader.fChain)
93 AliRawReaderChain& AliRawReaderChain::operator = (const AliRawReaderChain&
96 // assignment operator
98 this->~AliRawReaderChain();
99 new(this) AliRawReaderChain(rawReader);
103 AliRawReaderChain::~AliRawReaderChain()
105 // delete objects and close root file
113 Bool_t AliRawReaderChain::NextEvent()
115 // go to the next event in the root file
117 if (!fChain || !fChain->GetListOfFiles()->GetEntriesFast()) return kFALSE;
121 fEvent = new AliRawEvent;
122 if (fChain->GetEntry(fEventIndex+1) <= 0)
125 } while (!IsEventSelected());
130 Bool_t AliRawReaderChain::RewindEvents()
132 // go back to the beginning of the root file
136 fEvent = new AliRawEvent;