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 !");
59 Abort("Cannot initialize without analysis manager. Aborting.");
63 if (fAnalysis->GetDebugLevel()>0) {
64 cout << "->AliAnalysisSelector->Init()" << endl;
67 Error("Init", "Input tree is NULL !");
68 Abort("Cannot initialize without tree. Aborting.");
72 fInitialized = fAnalysis->Init(tree);
74 Error("Init", "Some error occured during analysis manager initialization. Aborting.");
75 Abort("Error during AliAnalysisManager::Init()");
79 if (fAnalysis->GetDebugLevel()>0) {
80 cout << "<-AliAnalysisSelector->Init()" << endl;
84 //______________________________________________________________________________
85 void AliAnalysisSelector::Begin(TTree *)
87 // Assembly the input list.
88 RestoreAnalysisManager();
89 if (fAnalysis && fAnalysis->GetDebugLevel()>0) {
90 cout << "->AliAnalysisSelector->Begin: Analysis manager restored" << endl;
94 //______________________________________________________________________________
95 void AliAnalysisSelector::SlaveBegin(TTree *tree)
97 // Called on each worker. We "unpack" analysis manager here and call InitAnalysis.
98 RestoreAnalysisManager();
100 if (fAnalysis->GetDebugLevel()>0) {
101 cout << "->AliAnalysisSelector->SlaveBegin() after Restore" << endl;
103 fAnalysis->SlaveBegin(tree);
104 if (fAnalysis->GetDebugLevel()>0) {
105 cout << "<-AliAnalysisSelector->SlaveBegin()" << endl;
110 //______________________________________________________________________________
111 Bool_t AliAnalysisSelector::Notify()
113 // The Notify() function is called when a new file is opened. This
114 // can be either for a new TTree in a TChain or when when a new TTree
115 // is started when using PROOF. It is normaly not necessary to make changes
116 // to the generated code, but the routine can be extended by the
117 // user if needed. The return value is currently not used.
118 if (fAnalysis) return fAnalysis->Notify();
122 //______________________________________________________________________________
123 Bool_t AliAnalysisSelector::Process(Long64_t entry)
126 if (fAnalysis->GetDebugLevel() > 0) {
127 cout << "->AliAnalysisSelector::Process()" << endl;
129 Int_t nobjCount = TProcessID::GetObjectCount();
130 fAnalysis->GetEntry(entry);
131 fAnalysis->ExecAnalysis();
132 TProcessID::SetObjectCount(nobjCount);
133 if (fAnalysis->GetDebugLevel() > 0) {
134 cout << "<-AliAnalysisSelector::Process()" << endl;
139 //______________________________________________________________________________
140 void AliAnalysisSelector::RestoreAnalysisManager()
142 // Restores analysis manager from the input list.
146 while ((obj=next())) {
147 if (obj->IsA() == AliAnalysisManager::Class()) {
148 fAnalysis = (AliAnalysisManager*)obj;
149 fAnalysis->SetSelector(this);
150 if (fAnalysis->GetDebugLevel()>0) {
151 cout << "->AliAnalysisSelector->RestoreAnalysisManager: Analysis manager restored" << endl;
157 Error("SlaveBegin", "Analysis manager not found in the input list");
163 //______________________________________________________________________________
164 void AliAnalysisSelector::SlaveTerminate()
166 // The SlaveTerminate() function is called after all entries or objects
167 // have been processed. When running with PROOF SlaveTerminate() is called
168 // on each slave server.
169 if (fStatus == -1) return; // TSelector won't abort...
170 if (fAnalysis->GetAnalysisType() == AliAnalysisManager::kMixingAnalysis) return;
171 if (fAnalysis->GetDebugLevel() > 0) {
172 cout << "->AliAnalysisSelector::SlaveTerminate()" << endl;
174 fAnalysis->PackOutput(fOutput);
175 if (fAnalysis->GetDebugLevel() > 0) {
176 cout << "<-AliAnalysisSelector::SlaveTerminate()" << endl;
180 //______________________________________________________________________________
181 void AliAnalysisSelector::Terminate()
183 // The Terminate() function is the last function to be called during
184 // a query. It always runs on the client, it can be used to present
185 // the results graphically or save the results to file.
186 if (fStatus == -1) return; // TSelector won't abort...
188 Error("Terminate","AliAnalysisSelector::Terminate: No analysis manager!!!");
191 // No Terminate() in case of event mixing
192 if (fAnalysis->GetAnalysisType() == AliAnalysisManager::kMixingAnalysis) return;
193 if (fAnalysis->GetDebugLevel() > 0) {
194 cout << "->AliAnalysisSelector::Terminate()" << endl;
196 fAnalysis->UnpackOutput(fOutput);
197 fAnalysis->Terminate();
198 if (fAnalysis->GetDebugLevel() > 0) {
199 cout << "<-AliAnalysisSelector::Terminate()" << endl;