/* $Id$ */
-// Helper macros for creating chains
-
-TChain* CreateESDChain(const char* aDataDir = "ESDfiles.txt", Int_t aRuns = 20, Int_t offset = 0)
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+// This helper macros creates a chain of ESD files for you. Source can be either a text
+// file with the file paths or a directory. In the latter case all ESD files in all subdirectories
+// are considered.
+//
+// Author: Jan.Fiete.Grosse-Oetringhaus@cern.ch
+
+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)
{
// creates chain of files in a given directory or file containing a list.
// In case of directory the structure is expected as:
// <aDataDir>/<dir0>/AliESDs.root
// <aDataDir>/<dir1>/AliESDs.root
// ...
+ //
+ // if addFileName is true the list only needs to contain the directories that contain the AliESDs.root files
+ // if addFriend is true a file AliESDfriends.root is expected in the same directory and added to the chain as friend
+ // if check is != 0 the files that work are written back into the textfile with the name check
if (!aDataDir)
return 0;
Long_t id, size, flags, modtime;
if (gSystem->GetPathInfo(aDataDir, &id, &size, &flags, &modtime))
{
- print("%s not found.\n", aDataDir);
+ printf("%s not found.\n", aDataDir);
return 0;
}
TChain* chain = new TChain("esdTree");
- TChain* chaingAlice = 0;
+ TChain* chainFriend = 0;
+
+ if (addFriend)
+ chainFriend = new TChain("esdFriendTree");
if (flags & 2)
{
ifstream in;
in.open(aDataDir);
+ ofstream outfile;
+ if (check)
+ outfile.open(check);
+
Int_t count = 0;
// Read the input list of files and add them to the chain
- TString esdfile;
- while(in.good()) {
- in >> esdfile;
- if (!esdfile.Contains("root")) continue; // protection
+ TString line;
+ while (in.good())
+ {
+ in >> line;
+
+ if (line.Length() == 0)
+ continue;
if (offset > 0)
{
- --offset;
+ offset--;
continue;
}
if (count++ == aRuns)
break;
+ TString esdFile(line);
+
+ if (addFileName)
+ esdFile += "/AliESDs.root";
+
+ TString esdFileFriend(esdFile);
+ esdFileFriend.ReplaceAll("AliESDs.root", "AliESDfriends.root");
+
+ if (check)
+ {
+ TFile* file = TFile::Open(esdFile);
+ if (!file)
+ continue;
+ file->Close();
+
+ if (chainFriend)
+ {
+ TFile* file = TFile::Open(esdFileFriend);
+ if (!file)
+ continue;
+ file->Close();
+ }
+
+ outfile << line.Data() << endl;
+ printf("%s\n", line.Data());
+ }
+
// add esd file
- chain->Add(esdfile);
+ chain->Add(esdFile);
+
+ // add file
+ if (chainFriend)
+ chainFriend->Add(esdFileFriend);
}
in.close();
+
+ if (check)
+ outfile.close();
+ }
+
+ if (chainFriend)
+ chain->AddFriend(chainFriend);
+
+ return chain;
+}
+
+void ChainToTextFile(TChain* chain, const char* target)
+{
+ // write a text list of the files in the chain
+
+ TObjArray* list = chain->GetListOfFiles();
+ TIterator* iter = list->MakeIterator();
+ TObject* obj = 0;
+
+ ofstream outfile;
+ outfile.open(target);
+
+ while ((obj = iter->Next())) {
+ TString fileName(obj->GetTitle());
+
+ outfile << fileName.Data() << endl;
}
+ outfile.close();
+
+ delete iter;
+}
+
+TObjArray* Chain2List(TChain* chain)
+{
+ // returns a TObjArray of TObjStrings of the file names in the chain
+
+ TObjArray* result = new TObjArray;
+
+ for (Int_t i=0; i<chain->GetListOfFiles()->GetEntries(); i++)
+ result->Add(new TObjString(chain->GetListOfFiles()->At(i)->GetTitle()));
+
+ return result;
+}
+
+void LookupWrite(TChain* chain, const char* target)
+{
+ // looks up the chain and writes the remaining files to the text file target
+
+ chain->Lookup();
+
+ ChainToTextFile(chain, target);
+}
+
+TChain* CreateChain(const char* treeName, const char* aDataDir, Int_t aRuns, Int_t offset = 0)
+{
+ // creates chain of files in a given directory or file containing a list.
+
+ if (!treeName || !aDataDir)
+ return 0;
+
+ TChain* chain = new TChain(treeName);
+
+ // Open the input stream
+ ifstream in;
+ in.open(aDataDir);
+
+ Int_t count = 0;
+
+ // Read the input list of files and add them to the chain
+ TString line;
+ while(in.good())
+ {
+ in >> line;
+
+ if (line.Length() == 0)
+ continue;
+
+ if (offset > 0)
+ {
+ --offset;
+ continue;
+ }
+
+ if (count++ == aRuns)
+ break;
+
+ chain->Add(line);
+ }
+
+ in.close();
+
return chain;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff