Added scripts from Carsten to do the various correction
[u/mrichter/AliRoot.git] / ANALYSIS / AliEventPoolLoop.cxx
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1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/* $Id$ */
17
18
19// Realisation of an AliVEventPool which allows the user to
20// run the analysis in a loop, i.e. passing several times over
21// the same event chain.
22// Author Andreas Morsch
23// andreas.morsch@cern.ch
24
25
26#include "AliEventPoolLoop.h"
27#include <TChain.h>
28#include <TFile.h>
29#include <TObjArray.h>
30
31ClassImp(AliEventPoolLoop)
32
33
34////////////////////////////////////////////////////////////////////////
35
36AliEventPoolLoop::AliEventPoolLoop():
37 AliVEventPool(),
38 fMaxIterations(0),
39 fNIteration(0),
40 fChainClone(0)
41{
42 // Default constructor
43}
44
45AliEventPoolLoop::AliEventPoolLoop(Int_t nit):
46 AliVEventPool(),
47 fMaxIterations(nit),
48 fNIteration(0),
49 fChainClone(0)
50{
51 // Default constructor
52}
53
54AliEventPoolLoop::AliEventPoolLoop(const char* name, const char* title):
55 AliVEventPool(name, title),
56 fMaxIterations(0),
57 fNIteration(0),
58 fChainClone(0)
59{
60 // Constructor
61}
62
63
64AliEventPoolLoop::AliEventPoolLoop(const AliEventPoolLoop& obj):
65 AliVEventPool(obj),
66 fMaxIterations(obj.fMaxIterations),
67 fNIteration(obj.fNIteration),
68 fChainClone(0)
69{
70 // Copy constructor
71}
72
73AliEventPoolLoop& AliEventPoolLoop::operator=(const AliEventPoolLoop& other)
74{
75// Assignment operator
76 AliVEventPool::operator=(other);
77 fMaxIterations = other.fMaxIterations;
78 fNIteration = other.fNIteration;
79 return *this;
80}
81
82
83void AliEventPoolLoop::Init()
84{
85// Initialisation
86
87 fMaxIterations = 0;
88 fNIteration = 0;
89}
90
91TChain* AliEventPoolLoop::GetNextChain()
92{
93 //
94 if (fNIteration >= fMaxIterations) {
95 return (0);
96 } else {
97 fNIteration++;
98 /*
99 if (fChainClone) {
100 fChainClone->Reset();
101 new (fChainClone) TChain(fChain->GetName());
102 } else {
103 fChainClone = new TChain(fChain->GetName());
104 }
105 TObjArray* files = fChain->GetListOfFiles();
106 Int_t n = files->GetEntriesFast();
107 for (Int_t i = 0; i < n; i++) {
108 TFile* file = (TFile*) (files->At(i));
109 fChainClone->AddFile(file->GetTitle());
110 printf("Adding %s %s %s\n", fChainClone->GetName(), file->GetName(), file->GetTitle());
111
112 }
113 */
114 fChainClone = (TChain*) (fChain->Clone());
115 return fChainClone;
116 }
117}
118
119void AliEventPoolLoop::GetCurrentBin(Float_t* /*bin*/)
120{
121 //
122}
123
124Int_t AliEventPoolLoop::GetDimension()
125{
126 //
127 return (0);
128}
129