Go4EventServer/TGo4MainTree.cxx
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00001 // $Id: TGo4MainTree.cxx 999 2013-07-25 11:58:59Z linev $ 00002 //----------------------------------------------------------------------- 00003 // The GSI Online Offline Object Oriented (Go4) Project 00004 // Experiment Data Processing at EE department, GSI 00005 //----------------------------------------------------------------------- 00006 // Copyright (C) 2000- GSI Helmholtzzentrum für Schwerionenforschung GmbH 00007 // Planckstr. 1, 64291 Darmstadt, Germany 00008 // Contact: http://go4.gsi.de 00009 //----------------------------------------------------------------------- 00010 // This software can be used under the license agreements as stated 00011 // in Go4License.txt file which is part of the distribution. 00012 //----------------------------------------------------------------------- 00013 00014 #include "TGo4MainTree.h" 00015 00016 #include "TTree.h" 00017 #include "TFile.h" 00018 00019 #include "TGo4Log.h" 00020 #include "Go4Exceptions.h" 00021 00022 00023 TGo4MainTree * TGo4MainTree::fxInstance= 0; 00024 00025 const char* TGo4MainTree::fgcTREENAME = "Main"; 00026 const char* TGo4MainTree::fgcFILENAME = "Go4MainTree.root"; 00027 00028 const Int_t TGo4MainTree::fgiCOMPRESS = 5; 00029 const Int_t TGo4MainTree::fgiAUTOSAVESIZE = 10000000; 00030 00031 TGo4MainTree::TGo4MainTree() : 00032 TObject(), 00033 fxTree(0), 00034 fiMaxIndex(0), 00035 fiCurrentIndex(0) 00036 { 00037 GO4TRACE((15,"TGo4MainTree::TGo4MainTree()", __LINE__, __FILE__)); 00038 00039 fxFile = TFile::Open(fgcFILENAME, "UPDATE", "File for main Go4 tree", fgiCOMPRESS); 00040 TGo4Log::Info("TGo4MainTree: Open file %s UPDATE", fgcFILENAME); 00041 // check if tree already exists... 00042 fxTree = dynamic_cast<TTree*> (fxFile->Get(fgcTREENAME)); 00043 if(fxTree) { 00044 TGo4Log::Debug(" MainTree has been found in file %s ",fgcFILENAME); 00045 } else { 00046 fxTree = new TTree(fgcTREENAME, "The Go4 Tree"); 00047 fxTree->SetAutoSave(fgiAUTOSAVESIZE); 00048 TGo4Log::Debug(" MainTree has been created in file %s ",fgcFILENAME); 00049 } 00050 fiMaxIndex = (Int_t) fxTree->GetEntries(); 00051 } 00052 00053 TGo4MainTree::~TGo4MainTree() 00054 { 00055 GO4TRACE((15,"TGo4MainTree::~TGo4MainTree()", __LINE__, __FILE__)); 00056 Write(); 00057 delete fxFile; 00058 00059 } 00060 00061 00062 TGo4MainTree * TGo4MainTree::Instance() 00063 { 00064 GO4TRACE((12,"TGo4MainTree::Instance()", __LINE__, __FILE__)); 00065 if (fxInstance == 0) 00066 { 00067 fxInstance = new TGo4MainTree(); 00068 } 00069 else { } 00070 return fxInstance; 00071 } 00072 00073 void TGo4MainTree::SetAutoSave(Int_t bytesinterval) 00074 { 00075 GO4TRACE((15,"TGo4MainTree::SetAutoSave(Int_t)", __LINE__, __FILE__)); 00076 Instance(); 00077 fxTree->SetAutoSave(bytesinterval); 00078 } 00079 00080 Int_t TGo4MainTree::Write(const char* /*dummy*/, Int_t /*option*/, Int_t /*bufsize*/) 00081 { 00082 GO4TRACE((12,"TGo4MainTree::Write()", __LINE__, __FILE__)); 00083 fxFile->cd(); 00084 fxTree->Write(0, TObject::kOverwrite); 00085 return 0; 00086 } 00087 00088 Int_t TGo4MainTree::Write(const char* /*dummy*/, Int_t /*option*/, Int_t /*bufsize*/) const 00089 { 00090 GO4TRACE((12,"TGo4MainTree::Write()", __LINE__, __FILE__)); 00091 fxFile->cd(); 00092 fxTree->Write(0, TObject::kOverwrite); 00093 return 0; 00094 } 00095 00096 void TGo4MainTree::Update() 00097 { 00098 GO4TRACE((12,"TGo4MainTree::Update()", __LINE__, __FILE__)); 00099 if( GetCurrentIndex() >= GetMaxIndex() ) 00100 { 00101 // if we are at the end of the tree, increment TTree fEvents counter 00102 // without affecting the branches: 00103 fxTree->SetBranchStatus("*",0); 00104 fxTree->Fill(); 00105 fxTree->SetBranchStatus("*",1); 00106 } 00107 else 00108 { } 00109 IncCurrentIndex(); 00110 } 00111 00112 Int_t TGo4MainTree::GetMaxIndex() 00113 { 00114 fiMaxIndex = (fxTree==0) ? 0 : fxTree->GetEntries(); 00115 return fiMaxIndex; 00116 } 00117 00118
