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beb1c41d | 1 | #include "AliReaderESDTree.h" |
2 | //_______________________________________________________________________ | |
3 | ///////////////////////////////////////////////////////////////////////// | |
4 | // | |
5 | // class AliReaderESDTree | |
6 | // | |
7 | // Reader for MUON ESD Tree (only for rec) | |
8 | // | |
9 | // finck@subatech.in2p3.fr | |
10 | // | |
11 | ///////////////////////////////////////////////////////////////////////// | |
12 | ||
13 | #include <TString.h> | |
14 | #include <TTree.h> | |
15 | #include <TFile.h> | |
16 | ||
17 | ||
18 | #include <AliRun.h> | |
19 | #include <AliRunLoader.h> | |
20 | ||
21 | #include <AliESD.h> | |
22 | #include "AliAOD.h" | |
23 | ||
24 | ClassImp(AliReaderESDTree) | |
25 | ||
26 | AliReaderESDTree::AliReaderESDTree(const Char_t* esdfilename, const Char_t* galfilename): | |
27 | AliReaderESD(esdfilename,galfilename), | |
28 | fTree(0x0) | |
29 | { | |
30 | //ctor | |
31 | } | |
32 | ||
33 | /********************************************************************/ | |
34 | AliReaderESDTree::~AliReaderESDTree() | |
35 | { | |
36 | //dtor | |
37 | delete fTree; | |
38 | } | |
39 | ||
40 | /**********************************************************/ | |
41 | Int_t AliReaderESDTree::ReadNext() | |
42 | { | |
43 | //reads next event from fFile | |
44 | //fRunLoader is for reading Kine | |
45 | ||
46 | if (AliVAODParticle::GetDebug()) | |
47 | Info("ReadNext","Entered"); | |
48 | ||
49 | if (fEventSim == 0x0) fEventSim = new AliAOD(); | |
50 | if (fEventRec == 0x0) fEventRec = new AliAOD(); | |
51 | ||
52 | fEventSim->Reset(); | |
53 | fEventRec->Reset(); | |
54 | ||
55 | do //do{}while; is OK even if 0 dirs specified. In that case we try to read from "./" | |
56 | { | |
57 | if (fFile == 0x0) | |
58 | { | |
59 | fFile = OpenFile(fCurrentDir);//rl is opened here | |
60 | if (fFile == 0x0) | |
61 | { | |
62 | Error("ReadNext","Cannot get fFile for dir no. %d",fCurrentDir); | |
63 | fCurrentDir++; | |
64 | continue; | |
65 | } | |
66 | fCurrentEvent = 0; | |
67 | } | |
68 | ||
69 | static AliESD* esd = 0x0; | |
70 | fTree->SetBranchAddress("ESD", &esd); | |
71 | Int_t status = fTree->GetEvent(fCurrentEvent); | |
72 | ||
73 | if (!status) | |
74 | { | |
75 | if (AliVAODParticle::GetDebug() > 2 ) | |
76 | { | |
77 | Info("ReadNext","Can not find event# %d in Tree", fCurrentEvent); | |
78 | } | |
79 | fCurrentDir++; | |
80 | delete fFile;//we have to assume there is no more ESD objects in the fFile | |
81 | fFile = 0x0; | |
82 | delete fRunLoader; | |
83 | fRunLoader = 0x0; | |
84 | continue; | |
85 | } | |
86 | ||
87 | ReadESD(esd); | |
88 | ||
89 | fCurrentEvent++; | |
90 | fNEventsRead++; | |
91 | return 0;//success -> read one event | |
92 | }while(fCurrentDir < GetNumberOfDirs());//end of loop over directories specified in fDirs Obj Array | |
93 | ||
94 | return 1; //no more directories to read | |
95 | } | |
96 | ||
97 | /**********************************************************/ | |
98 | TFile* AliReaderESDTree::OpenFile(Int_t n) | |
99 | { | |
100 | //opens fFile with kine tree | |
101 | ||
102 | const TString& dirname = GetDirName(n); | |
103 | if (dirname == "") | |
104 | { | |
105 | Error("OpenFiles","Can not get directory name"); | |
106 | return 0x0; | |
107 | } | |
108 | TString filename = dirname +"/"+ fESDFileName; | |
109 | TFile *ret = TFile::Open(filename.Data()); | |
110 | ||
111 | if (ret == 0x0) | |
112 | { | |
113 | Error("OpenFiles","Can't open fFile %s",filename.Data()); | |
114 | return 0x0; | |
115 | } | |
116 | if (!ret->IsOpen()) | |
117 | { | |
118 | Error("OpenFiles","Can't open fFile %s",filename.Data()); | |
119 | return 0x0; | |
120 | } | |
121 | ||
122 | TString esdname = "esdTree"; | |
123 | fTree = dynamic_cast<TTree*> (ret->Get(esdname)); | |
124 | ||
125 | if (!fTree) | |
126 | { | |
127 | Error("OpenFiles","Can't open ESD Tree %s",esdname.Data()); | |
128 | return 0x0; | |
129 | ||
130 | } | |
131 | ||
132 | if (fReadSim ) | |
133 | { | |
134 | fRunLoader = AliRunLoader::Open(dirname +"/"+ fGAlFileName); | |
135 | if (fRunLoader == 0x0) | |
136 | { | |
137 | Error("OpenFiles","Can't get RunLoader for directory %s",dirname.Data()); | |
138 | delete ret; | |
139 | return 0x0; | |
140 | } | |
141 | ||
142 | fRunLoader->LoadHeader(); | |
143 | if (fRunLoader->LoadKinematics()) | |
144 | { | |
145 | Error("Next","Error occured while loading kinematics."); | |
146 | delete fRunLoader; | |
147 | delete ret; | |
148 | return 0x0; | |
149 | } | |
150 | } | |
151 | ||
152 | return ret; | |
153 | } |