1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
17 // Author: Andrei Gheata, 31/05/2006
19 //==============================================================================
20 // AliAnalysisSelector - A transparent selector to be created by
21 // AliAnalysisManager to handle analysis.
22 //==============================================================================
24 #include <Riostream.h>
25 #include <TProcessID.h>
27 #include "AliAnalysisManager.h"
28 #include "AliAnalysisTask.h"
29 #include "AliAnalysisDataContainer.h"
30 #include "AliAnalysisSelector.h"
32 ClassImp(AliAnalysisSelector)
34 //______________________________________________________________________________
35 AliAnalysisSelector::AliAnalysisSelector(AliAnalysisManager *mgr)
40 // Constructor. Called by AliAnalysisManager which registers itself on the
41 // selector running on the master.
44 //______________________________________________________________________________
45 AliAnalysisSelector::~AliAnalysisSelector()
47 // Dtor. The analysis manager object is sent in the input list and duplicated
48 // on the workers - it needs to be deleted (?)
49 // if (fAnalysis) delete fAnalysis;
52 //______________________________________________________________________________
53 void AliAnalysisSelector::Init(TTree *tree)
55 // Called after Begin/SlaveBegin, assumes that fAnalysis is already initialized.
56 // Is Init called on workers in case of PROOF.
58 Error("Init", "Analysis manager NULL !");
61 if (fAnalysis->GetDebugLevel()>1) {
62 cout << "->AliAnalysisSelector->Init()" << endl;
65 Error("Init", "Input tree is NULL !");
68 fAnalysis->Init(tree);
70 if (fAnalysis->GetDebugLevel()>1) {
71 cout << "<-AliAnalysisSelector->Init()" << endl;
75 //______________________________________________________________________________
76 void AliAnalysisSelector::Begin(TTree *)
78 // Assembly the input list.
79 RestoreAnalysisManager();
80 if (fAnalysis && fAnalysis->GetDebugLevel()>1) {
81 cout << "->AliAnalysisSelector->Begin: Analysis manager restored" << endl;
85 //______________________________________________________________________________
86 void AliAnalysisSelector::SlaveBegin(TTree *tree)
88 // Called on each worker. We "unpack" analysis manager here and call InitAnalysis.
89 RestoreAnalysisManager();
91 if (fAnalysis->GetDebugLevel()>1) {
92 cout << "->AliAnalysisSelector->SlaveBegin() after Restore" << endl;
94 fAnalysis->SlaveBegin(tree);
95 if (fAnalysis->GetDebugLevel()>1) {
96 cout << "<-AliAnalysisSelector->SlaveBegin()" << endl;
101 //______________________________________________________________________________
102 Bool_t AliAnalysisSelector::Notify()
104 // The Notify() function is called when a new file is opened. This
105 // can be either for a new TTree in a TChain or when when a new TTree
106 // is started when using PROOF. It is normaly not necessary to make changes
107 // to the generated code, but the routine can be extended by the
108 // user if needed. The return value is currently not used.
109 if (fAnalysis) return fAnalysis->Notify();
113 //______________________________________________________________________________
114 Bool_t AliAnalysisSelector::Process(Long64_t entry)
117 if (fAnalysis->GetDebugLevel() >1 ) {
118 cout << "->AliAnalysisSelector::Process()" << endl;
120 Int_t nobjCount = TProcessID::GetObjectCount();
121 fAnalysis->GetEntry(entry);
122 fAnalysis->ExecAnalysis();
123 TProcessID::SetObjectCount(nobjCount);
124 if (fAnalysis->GetDebugLevel() >1 ) {
125 cout << "<-AliAnalysisSelector::Process()" << endl;
130 //______________________________________________________________________________
131 void AliAnalysisSelector::RestoreAnalysisManager()
133 // Restores analysis manager from the input list.
137 while ((obj=next())) {
138 if (obj->IsA() == AliAnalysisManager::Class()) {
139 fAnalysis = (AliAnalysisManager*)obj;
140 if (fAnalysis->GetDebugLevel()>1) {
141 cout << "->AliAnalysisSelector->RestoreAnalysisManager: Analysis manager restored" << endl;
147 Error("SlaveBegin", "Analysis manager not found in the input list");
153 //______________________________________________________________________________
154 void AliAnalysisSelector::SlaveTerminate()
156 // The SlaveTerminate() function is called after all entries or objects
157 // have been processed. When running with PROOF SlaveTerminate() is called
158 // on each slave server.
159 if (fAnalysis->GetDebugLevel() >1 ) {
160 cout << "->AliAnalysisSelector::SlaveTerminate()" << endl;
162 fAnalysis->PackOutput(fOutput);
163 if (fAnalysis->GetDebugLevel() >1 ) {
164 cout << "<-AliAnalysisSelector::SlaveTerminate()" << endl;
168 //______________________________________________________________________________
169 void AliAnalysisSelector::Terminate()
171 // The Terminate() function is the last function to be called during
172 // a query. It always runs on the client, it can be used to present
173 // the results graphically or save the results to file.
175 Error("Terminate","AliAnalysisSelector::Terminate: No analysis manager!!!");
178 if (fAnalysis->GetDebugLevel() >1 ) {
179 cout << "->AliAnalysisSelector::Terminate()" << endl;
181 fAnalysis->UnpackOutput(fOutput);
182 fAnalysis->Terminate();
183 if (fAnalysis->GetDebugLevel() >1 ) {
184 cout << "<-AliAnalysisSelector::Terminate()" << endl;