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c7ffd78f | 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 | ||
beb1c41d | 18 | //_______________________________________________________________________ |
19 | ///////////////////////////////////////////////////////////////////////// | |
20 | // | |
21 | // class AliReaderESDTree | |
22 | // | |
23 | // Reader for MUON ESD Tree (only for rec) | |
24 | // | |
25 | // finck@subatech.in2p3.fr | |
26 | // | |
27 | ///////////////////////////////////////////////////////////////////////// | |
28 | ||
29 | #include <TString.h> | |
30 | #include <TTree.h> | |
31 | #include <TFile.h> | |
32 | ||
beb1c41d | 33 | #include "AliAOD.h" |
c7ffd78f | 34 | #include "AliESD.h" |
35 | #include "AliLog.h" | |
36 | #include "AliReaderESDTree.h" | |
37 | #include "AliRun.h" | |
38 | #include "AliRunLoader.h" | |
beb1c41d | 39 | |
40 | ClassImp(AliReaderESDTree) | |
41 | ||
42 | AliReaderESDTree::AliReaderESDTree(const Char_t* esdfilename, const Char_t* galfilename): | |
43 | AliReaderESD(esdfilename,galfilename), | |
44 | fTree(0x0) | |
45 | { | |
46 | //ctor | |
47 | } | |
48 | ||
49 | /********************************************************************/ | |
50 | AliReaderESDTree::~AliReaderESDTree() | |
51 | { | |
52 | //dtor | |
53 | delete fTree; | |
54 | } | |
55 | ||
56 | /**********************************************************/ | |
57 | Int_t AliReaderESDTree::ReadNext() | |
58 | { | |
59 | //reads next event from fFile | |
60 | //fRunLoader is for reading Kine | |
61 | ||
c7ffd78f | 62 | AliDebug(1,"Entered"); |
beb1c41d | 63 | |
64 | if (fEventSim == 0x0) fEventSim = new AliAOD(); | |
65 | if (fEventRec == 0x0) fEventRec = new AliAOD(); | |
66 | ||
67 | fEventSim->Reset(); | |
68 | fEventRec->Reset(); | |
69 | ||
70 | do //do{}while; is OK even if 0 dirs specified. In that case we try to read from "./" | |
71 | { | |
72 | if (fFile == 0x0) | |
e1a64564 | 73 | { |
74 | fFile = OpenFile(fCurrentDir);//rl is opened here | |
75 | if (fFile == 0x0) | |
76 | { | |
77 | Error("ReadNext","Cannot get fFile for dir no. %d",fCurrentDir); | |
78 | fCurrentDir++; | |
79 | continue; | |
80 | } | |
81 | fCurrentEvent = 0; | |
82 | } | |
beb1c41d | 83 | |
84 | static AliESD* esd = 0x0; | |
85 | fTree->SetBranchAddress("ESD", &esd); | |
86 | Int_t status = fTree->GetEvent(fCurrentEvent); | |
87 | ||
88 | if (!status) | |
e1a64564 | 89 | { |
c7ffd78f | 90 | AliDebug(2,Form("Cannot find event# %d in Tree", fCurrentEvent)); |
e1a64564 | 91 | fCurrentDir++; |
92 | delete fTree; | |
93 | fTree = 0x0; | |
94 | delete fFile;//we have to assume there is no more ESD objects in the fFile | |
95 | fFile = 0x0; | |
96 | delete fRunLoader; | |
97 | fRunLoader = 0x0; | |
98 | continue; | |
99 | } | |
beb1c41d | 100 | |
101 | ReadESD(esd); | |
102 | ||
103 | fCurrentEvent++; | |
104 | fNEventsRead++; | |
105 | return 0;//success -> read one event | |
106 | }while(fCurrentDir < GetNumberOfDirs());//end of loop over directories specified in fDirs Obj Array | |
107 | ||
108 | return 1; //no more directories to read | |
109 | } | |
110 | ||
111 | /**********************************************************/ | |
112 | TFile* AliReaderESDTree::OpenFile(Int_t n) | |
113 | { | |
114 | //opens fFile with kine tree | |
115 | ||
116 | const TString& dirname = GetDirName(n); | |
117 | if (dirname == "") | |
118 | { | |
119 | Error("OpenFiles","Can not get directory name"); | |
120 | return 0x0; | |
121 | } | |
122 | TString filename = dirname +"/"+ fESDFileName; | |
123 | TFile *ret = TFile::Open(filename.Data()); | |
124 | ||
125 | if (ret == 0x0) | |
126 | { | |
127 | Error("OpenFiles","Can't open fFile %s",filename.Data()); | |
128 | return 0x0; | |
129 | } | |
130 | if (!ret->IsOpen()) | |
131 | { | |
132 | Error("OpenFiles","Can't open fFile %s",filename.Data()); | |
133 | return 0x0; | |
134 | } | |
135 | ||
136 | TString esdname = "esdTree"; | |
137 | fTree = dynamic_cast<TTree*> (ret->Get(esdname)); | |
138 | ||
139 | if (!fTree) | |
140 | { | |
141 | Error("OpenFiles","Can't open ESD Tree %s",esdname.Data()); | |
e1a64564 | 142 | delete ret; |
beb1c41d | 143 | return 0x0; |
144 | ||
145 | } | |
146 | ||
147 | if (fReadSim ) | |
148 | { | |
149 | fRunLoader = AliRunLoader::Open(dirname +"/"+ fGAlFileName); | |
150 | if (fRunLoader == 0x0) | |
151 | { | |
152 | Error("OpenFiles","Can't get RunLoader for directory %s",dirname.Data()); | |
e1a64564 | 153 | delete fTree; |
beb1c41d | 154 | delete ret; |
155 | return 0x0; | |
156 | } | |
157 | ||
158 | fRunLoader->LoadHeader(); | |
159 | if (fRunLoader->LoadKinematics()) | |
160 | { | |
161 | Error("Next","Error occured while loading kinematics."); | |
162 | delete fRunLoader; | |
e1a64564 | 163 | delete fTree; |
beb1c41d | 164 | delete ret; |
165 | return 0x0; | |
166 | } | |
167 | } | |
168 | ||
169 | return ret; | |
170 | } |