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dc740de4 | 1 | /* $Id$ */ |
2 | ||
f10a1859 | 3 | /************************************************************************** |
4 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
5 | * * | |
6 | * Author: The ALICE Off-line Project. * | |
7 | * Contributors are mentioned in the code where appropriate. * | |
8 | * * | |
9 | * Permission to use, copy, modify and distribute this software and its * | |
10 | * documentation strictly for non-commercial purposes is hereby granted * | |
11 | * without fee, provided that the above copyright notice appears in all * | |
12 | * copies and that both the copyright notice and this permission notice * | |
13 | * appear in the supporting documentation. The authors make no claims * | |
14 | * about the suitability of this software for any purpose. It is * | |
15 | * provided "as is" without express or implied warranty. * | |
16 | **************************************************************************/ | |
17 | ||
18 | // This helper macros creates a chain of ESD files for you. Source can be either a text | |
19 | // file with the file paths or a directory. In the latter case all ESD files in all subdirectories | |
20 | // are considered. | |
21 | // | |
22 | // Author: Jan.Fiete.Grosse-Oetringhaus@cern.ch | |
23 | ||
1cad76da | 24 | TChain* CreateESDChain(const char* aDataDir = "ESDfiles.txt", Int_t aRuns = 20, Int_t offset = 0, Bool_t addFileName = kFALSE, Bool_t addFriend = kFALSE, const char* check = 0) |
539b6cb4 | 25 | { |
0ab29cfa | 26 | // creates chain of files in a given directory or file containing a list. |
27 | // In case of directory the structure is expected as: | |
dc740de4 | 28 | // <aDataDir>/<dir0>/AliESDs.root |
dc740de4 | 29 | // <aDataDir>/<dir1>/AliESDs.root |
dc740de4 | 30 | // ... |
f10a1859 | 31 | // |
32 | // if addFileName is true the list only needs to contain the directories that contain the AliESDs.root files | |
33 | // if addFriend is true a file AliESDfriends.root is expected in the same directory and added to the chain as friend | |
1cad76da | 34 | // if check is != 0 the files that work are written back into the textfile with the name check |
dc740de4 | 35 | |
539b6cb4 | 36 | if (!aDataDir) |
37 | return 0; | |
38 | ||
0ab29cfa | 39 | Long_t id, size, flags, modtime; |
40 | if (gSystem->GetPathInfo(aDataDir, &id, &size, &flags, &modtime)) | |
41 | { | |
bdfe2916 | 42 | printf("%s not found.\n", aDataDir); |
0ab29cfa | 43 | return 0; |
44 | } | |
45 | ||
539b6cb4 | 46 | TChain* chain = new TChain("esdTree"); |
f10a1859 | 47 | TChain* chainFriend = 0; |
48 | ||
49 | if (addFriend) | |
50 | chainFriend = new TChain("esdFriendTree"); | |
539b6cb4 | 51 | |
0ab29cfa | 52 | if (flags & 2) |
539b6cb4 | 53 | { |
0ab29cfa | 54 | TString execDir(gSystem->pwd()); |
55 | TSystemDirectory* baseDir = new TSystemDirectory(".", aDataDir); | |
56 | TList* dirList = baseDir->GetListOfFiles(); | |
57 | Int_t nDirs = dirList->GetEntries(); | |
58 | gSystem->cd(execDir); | |
539b6cb4 | 59 | |
0ab29cfa | 60 | Int_t count = 0; |
dc740de4 | 61 | |
0ab29cfa | 62 | for (Int_t iDir=0; iDir<nDirs; ++iDir) |
63 | { | |
64 | TSystemFile* presentDir = (TSystemFile*) dirList->At(iDir); | |
65 | if (!presentDir || !presentDir->IsDirectory() || strcmp(presentDir->GetName(), ".") == 0 || strcmp(presentDir->GetName(), "..") == 0) | |
66 | continue; | |
49dc84d9 | 67 | |
0ab29cfa | 68 | if (offset > 0) |
69 | { | |
70 | --offset; | |
71 | continue; | |
72 | } | |
539b6cb4 | 73 | |
0ab29cfa | 74 | if (count++ == aRuns) |
75 | break; | |
539b6cb4 | 76 | |
0ab29cfa | 77 | TString presentDirName(aDataDir); |
78 | presentDirName += "/"; | |
79 | presentDirName += presentDir->GetName(); | |
37dbb69e | 80 | |
0ab29cfa | 81 | chain->Add(presentDirName + "/AliESDs.root/esdTree"); |
82 | } | |
83 | } | |
84 | else | |
85 | { | |
86 | // Open the input stream | |
87 | ifstream in; | |
88 | in.open(aDataDir); | |
dc740de4 | 89 | |
1cad76da | 90 | ofstream outfile; |
91 | if (check) | |
92 | outfile.open(check); | |
93 | ||
0ab29cfa | 94 | Int_t count = 0; |
37dbb69e | 95 | |
0ab29cfa | 96 | // Read the input list of files and add them to the chain |
f10a1859 | 97 | TString line; |
116083b1 | 98 | while (in.good()) |
f10a1859 | 99 | { |
100 | in >> line; | |
116083b1 | 101 | |
f10a1859 | 102 | if (line.Length() == 0) |
116083b1 | 103 | continue; |
104 | ||
0ab29cfa | 105 | if (offset > 0) |
106 | { | |
116083b1 | 107 | offset--; |
0ab29cfa | 108 | continue; |
109 | } | |
37dbb69e | 110 | |
0ab29cfa | 111 | if (count++ == aRuns) |
112 | break; | |
37dbb69e | 113 | |
f10a1859 | 114 | TString esdFile(line); |
115 | ||
116 | if (addFileName) | |
117 | esdFile += "/AliESDs.root"; | |
118 | ||
119 | TString esdFileFriend(esdFile); | |
120 | esdFileFriend.ReplaceAll("AliESDs.root", "AliESDfriends.root"); | |
121 | ||
122 | if (check) | |
123 | { | |
124 | TFile* file = TFile::Open(esdFile); | |
125 | if (!file) | |
126 | continue; | |
127 | file->Close(); | |
128 | ||
129 | if (chainFriend) | |
130 | { | |
131 | TFile* file = TFile::Open(esdFileFriend); | |
132 | if (!file) | |
133 | continue; | |
134 | file->Close(); | |
135 | } | |
136 | ||
1cad76da | 137 | outfile << line.Data() << endl; |
f10a1859 | 138 | printf("%s\n", line.Data()); |
139 | } | |
140 | ||
0ab29cfa | 141 | // add esd file |
f10a1859 | 142 | chain->Add(esdFile); |
143 | ||
144 | // add file | |
145 | if (chainFriend) | |
146 | chainFriend->Add(esdFileFriend); | |
16e24ca3 | 147 | } |
148 | ||
0ab29cfa | 149 | in.close(); |
1cad76da | 150 | |
151 | if (check) | |
29771dc8 | 152 | outfile.close(); |
37dbb69e | 153 | } |
f10a1859 | 154 | |
155 | if (chainFriend) | |
156 | chain->AddFriend(chainFriend); | |
37dbb69e | 157 | |
37dbb69e | 158 | return chain; |
159 | } | |
7f8cf861 | 160 | |
6f052bf3 | 161 | void ChainToTextFile(TChain* chain, const char* target) |
7f8cf861 | 162 | { |
6f052bf3 | 163 | // write a text list of the files in the chain |
164 | ||
7f8cf861 | 165 | TObjArray* list = chain->GetListOfFiles(); |
166 | TIterator* iter = list->MakeIterator(); | |
167 | TObject* obj = 0; | |
168 | ||
169 | ofstream outfile; | |
170 | outfile.open(target); | |
171 | ||
eb884e16 | 172 | while ((obj = iter->Next())) { |
173 | TString fileName(obj->GetTitle()); | |
174 | ||
eb884e16 | 175 | outfile << fileName.Data() << endl; |
176 | } | |
7f8cf861 | 177 | |
178 | outfile.close(); | |
179 | ||
180 | delete iter; | |
6f052bf3 | 181 | } |
182 | ||
116083b1 | 183 | TObjArray* Chain2List(TChain* chain) |
184 | { | |
185 | // returns a TObjArray of TObjStrings of the file names in the chain | |
186 | ||
187 | TObjArray* result = new TObjArray; | |
188 | ||
189 | for (Int_t i=0; i<chain->GetListOfFiles()->GetEntries(); i++) | |
190 | result->Add(new TObjString(chain->GetListOfFiles()->At(i)->GetTitle())); | |
191 | ||
192 | return result; | |
193 | } | |
194 | ||
6f052bf3 | 195 | void LookupWrite(TChain* chain, const char* target) |
196 | { | |
197 | // looks up the chain and writes the remaining files to the text file target | |
198 | ||
199 | chain->Lookup(); | |
200 | ||
201 | ChainToTextFile(chain, target); | |
7f8cf861 | 202 | } |
eb884e16 | 203 | |
1cad76da | 204 | TChain* CreateChain(const char* treeName, const char* aDataDir, Int_t aRuns, Int_t offset = 0) |
205 | { | |
206 | // creates chain of files in a given directory or file containing a list. | |
eb884e16 | 207 | |
1cad76da | 208 | if (!treeName || !aDataDir) |
209 | return 0; | |
eb884e16 | 210 | |
1cad76da | 211 | TChain* chain = new TChain(treeName); |
eb884e16 | 212 | |
1cad76da | 213 | // Open the input stream |
214 | ifstream in; | |
215 | in.open(aDataDir); | |
216 | ||
217 | Int_t count = 0; | |
218 | ||
219 | // Read the input list of files and add them to the chain | |
220 | TString line; | |
221 | while(in.good()) | |
222 | { | |
223 | in >> line; | |
224 | ||
225 | if (line.Length() == 0) | |
226 | continue; | |
eb884e16 | 227 | |
1cad76da | 228 | if (offset > 0) |
229 | { | |
230 | --offset; | |
eb884e16 | 231 | continue; |
1cad76da | 232 | } |
233 | ||
234 | if (count++ == aRuns) | |
235 | break; | |
eb884e16 | 236 | |
1cad76da | 237 | chain->Add(line); |
238 | } | |
eb884e16 | 239 | |
1cad76da | 240 | in.close(); |
eb884e16 | 241 | |
1cad76da | 242 | return chain; |
eb884e16 | 243 | } |