Adapt to the New steering class ro run QA stand alone
[u/mrichter/AliRoot.git] / ANALYSIS / AliAnalysisManager.cxx
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d3106602 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/* $Id$ */
17// Author: Andrei Gheata, 31/05/2006
18
19//==============================================================================
20// AliAnalysysManager - Manager analysis class. Allows creation of several
37153431 21// analysis tasks and data containers storing their input/output. Allows
d3106602 22// connecting/chaining tasks via shared data containers. Serializes the current
23// event for all tasks depending only on initial input data.
24//==============================================================================
25//
26//==============================================================================
27
c52c2132 28#include <Riostream.h>
11026a80 29
c52c2132 30#include <TClass.h>
31#include <TFile.h>
32#include <TMethodCall.h>
33#include <TChain.h>
34#include <TSystem.h>
35#include <TROOT.h>
d3106602 36
d3106602 37#include "AliAnalysisTask.h"
38#include "AliAnalysisDataContainer.h"
39#include "AliAnalysisDataSlot.h"
d2f1d9ef 40#include "AliVEventHandler.h"
c52c2132 41#include "AliAnalysisManager.h"
d3106602 42
43ClassImp(AliAnalysisManager)
44
c52c2132 45AliAnalysisManager *AliAnalysisManager::fgAnalysisManager = NULL;
46
d3106602 47//______________________________________________________________________________
c52c2132 48AliAnalysisManager::AliAnalysisManager()
49 :TNamed(),
327eaf46 50 fTree(NULL),
54cff064 51 fInputEventHandler(NULL),
6bb2b24f 52 fOutputEventHandler(NULL),
53 fMCtruthEventHandler(NULL),
c52c2132 54 fCurrentEntry(-1),
55 fMode(kLocalAnalysis),
37a26056 56 fInitOK(kFALSE),
6bb2b24f 57 fDebug(0),
c52c2132 58 fTasks(NULL),
59 fTopTasks(NULL),
60 fZombies(NULL),
37a26056 61 fContainers(NULL),
62 fInputs(NULL),
c52c2132 63 fOutputs(NULL)
64{
65// Dummy constructor.
66 fgAnalysisManager = this;
b1310ef5 67 SetEventLoop(kTRUE);
c52c2132 68}
69
70//______________________________________________________________________________
71AliAnalysisManager::AliAnalysisManager(const char *name, const char *title)
72 :TNamed(name,title),
73 fTree(NULL),
54cff064 74 fInputEventHandler(NULL),
6bb2b24f 75 fOutputEventHandler(NULL),
76 fMCtruthEventHandler(NULL),
c52c2132 77 fCurrentEntry(-1),
78 fMode(kLocalAnalysis),
79 fInitOK(kFALSE),
80 fDebug(0),
37a26056 81 fTasks(NULL),
82 fTopTasks(NULL),
c52c2132 83 fZombies(NULL),
84 fContainers(NULL),
85 fInputs(NULL),
86 fOutputs(NULL)
d3106602 87{
88// Default constructor.
c52c2132 89 fgAnalysisManager = this;
90 fTasks = new TObjArray();
91 fTopTasks = new TObjArray();
92 fZombies = new TObjArray();
93 fContainers = new TObjArray();
94 fInputs = new TObjArray();
37153431 95 fOutputs = new TObjArray();
b1310ef5 96 SetEventLoop(kTRUE);
d3106602 97}
98
99//______________________________________________________________________________
100AliAnalysisManager::AliAnalysisManager(const AliAnalysisManager& other)
c52c2132 101 :TNamed(other),
327eaf46 102 fTree(NULL),
54cff064 103 fInputEventHandler(NULL),
6bb2b24f 104 fOutputEventHandler(NULL),
105 fMCtruthEventHandler(NULL),
c52c2132 106 fCurrentEntry(-1),
107 fMode(other.fMode),
108 fInitOK(other.fInitOK),
109 fDebug(other.fDebug),
37a26056 110 fTasks(NULL),
111 fTopTasks(NULL),
c52c2132 112 fZombies(NULL),
113 fContainers(NULL),
114 fInputs(NULL),
115 fOutputs(NULL)
d3106602 116{
117// Copy constructor.
37a26056 118 fTasks = new TObjArray(*other.fTasks);
119 fTopTasks = new TObjArray(*other.fTopTasks);
120 fZombies = new TObjArray(*other.fZombies);
c52c2132 121 fContainers = new TObjArray(*other.fContainers);
122 fInputs = new TObjArray(*other.fInputs);
123 fOutputs = new TObjArray(*other.fOutputs);
124 fgAnalysisManager = this;
d3106602 125}
126
127//______________________________________________________________________________
128AliAnalysisManager& AliAnalysisManager::operator=(const AliAnalysisManager& other)
129{
130// Assignment
131 if (&other != this) {
c52c2132 132 TNamed::operator=(other);
54cff064 133 fInputEventHandler = other.fInputEventHandler;
6bb2b24f 134 fOutputEventHandler = other.fOutputEventHandler;
135 fMCtruthEventHandler = other.fMCtruthEventHandler;
c52c2132 136 fTree = NULL;
137 fCurrentEntry = -1;
138 fMode = other.fMode;
37a26056 139 fInitOK = other.fInitOK;
c52c2132 140 fDebug = other.fDebug;
37a26056 141 fTasks = new TObjArray(*other.fTasks);
142 fTopTasks = new TObjArray(*other.fTopTasks);
143 fZombies = new TObjArray(*other.fZombies);
c52c2132 144 fContainers = new TObjArray(*other.fContainers);
145 fInputs = new TObjArray(*other.fInputs);
146 fOutputs = new TObjArray(*other.fOutputs);
147 fgAnalysisManager = this;
d3106602 148 }
149 return *this;
150}
151
152//______________________________________________________________________________
153AliAnalysisManager::~AliAnalysisManager()
154{
155// Destructor.
d3106602 156 if (fTasks) {fTasks->Delete(); delete fTasks;}
157 if (fTopTasks) delete fTopTasks;
158 if (fZombies) delete fZombies;
c52c2132 159 if (fContainers) {fContainers->Delete(); delete fContainers;}
160 if (fInputs) delete fInputs;
161 if (fOutputs) delete fOutputs;
162 if (fgAnalysisManager==this) fgAnalysisManager = NULL;
d3106602 163}
c52c2132 164
d3106602 165//______________________________________________________________________________
327eaf46 166Int_t AliAnalysisManager::GetEntry(Long64_t entry, Int_t getall)
167{
168// Read one entry of the tree or a whole branch.
c52c2132 169 if (fDebug > 1) {
170 cout << "== AliAnalysisManager::GetEntry()" << endl;
171 }
172 fCurrentEntry = entry;
327eaf46 173 return fTree ? fTree->GetTree()->GetEntry(entry, getall) : 0;
174}
175
176//______________________________________________________________________________
177void AliAnalysisManager::Init(TTree *tree)
d3106602 178{
179 // The Init() function is called when the selector needs to initialize
180 // a new tree or chain. Typically here the branch addresses of the tree
181 // will be set. It is normaly not necessary to make changes to the
182 // generated code, but the routine can be extended by the user if needed.
183 // Init() will be called many times when running with PROOF.
327eaf46 184 if (!tree) return;
c52c2132 185 if (fDebug > 1) {
981f2614 186 printf("->AliAnalysisManager::Init(%s)\n", tree->GetName());
c52c2132 187 }
188 if (!fInitOK) InitAnalysis();
189 if (!fInitOK) return;
327eaf46 190 fTree = tree;
191 AliAnalysisDataContainer *top = (AliAnalysisDataContainer*)fInputs->At(0);
c52c2132 192 if (!top) {
193 cout<<"Error: No top input container !" <<endl;
194 return;
37153431 195 }
327eaf46 196 top->SetData(tree);
981f2614 197 if (fDebug > 1) {
198 printf("<-AliAnalysisManager::Init(%s)\n", tree->GetName());
199 }
d3106602 200}
201
202//______________________________________________________________________________
327eaf46 203void AliAnalysisManager::Begin(TTree *tree)
d3106602 204{
205 // The Begin() function is called at the start of the query.
206 // When running with PROOF Begin() is only called on the client.
207 // The tree argument is deprecated (on PROOF 0 is passed).
c52c2132 208 if (fDebug > 1) {
209 cout << "AliAnalysisManager::Begin()" << endl;
210 }
327eaf46 211 Init(tree);
d3106602 212}
213
214//______________________________________________________________________________
327eaf46 215void AliAnalysisManager::SlaveBegin(TTree *tree)
d3106602 216{
217 // The SlaveBegin() function is called after the Begin() function.
218 // When running with PROOF SlaveBegin() is called on each slave server.
219 // The tree argument is deprecated (on PROOF 0 is passed).
c52c2132 220 if (fDebug > 1) {
981f2614 221 cout << "->AliAnalysisManager::SlaveBegin()" << endl;
37153431 222 }
8c9485b2 223 // Call InitIO of EventHandler
6bb2b24f 224 if (fOutputEventHandler) {
8ca08916 225 if (fMode == kProofAnalysis) {
6bb2b24f 226 fOutputEventHandler->InitIO("proof");
8ca08916 227 } else {
6bb2b24f 228 fOutputEventHandler->InitIO("local");
8ca08916 229 }
bcce695f 230 }
54cff064 231 if (fInputEventHandler) {
232 fInputEventHandler->SetInputTree(tree);
233 fInputEventHandler->InitIO("");
234 }
235
8c9485b2 236 //
c52c2132 237 TIter next(fTasks);
238 AliAnalysisTask *task;
239 // Call CreateOutputObjects for all tasks
c5a87c56 240 while ((task=(AliAnalysisTask*)next())) {
241 TDirectory *curdir = gDirectory;
c52c2132 242 task->CreateOutputObjects();
c5a87c56 243 if (curdir) curdir->cd();
244 }
c52c2132 245 if (fMode == kLocalAnalysis) Init(tree);
981f2614 246 if (fDebug > 1) {
247 cout << "<-AliAnalysisManager::SlaveBegin()" << endl;
248 }
d3106602 249}
250
251//______________________________________________________________________________
327eaf46 252Bool_t AliAnalysisManager::Notify()
253{
254 // The Notify() function is called when a new file is opened. This
255 // can be either for a new TTree in a TChain or when when a new TTree
256 // is started when using PROOF. It is normaly not necessary to make changes
257 // to the generated code, but the routine can be extended by the
258 // user if needed. The return value is currently not used.
53faeca4 259 if (fTree) {
260 TFile *curfile = fTree->GetCurrentFile();
c52c2132 261 if (curfile && fDebug>1) printf("AliAnalysisManager::Notify() file: %s\n", curfile->GetName());
981f2614 262 TIter next(fTasks);
263 AliAnalysisTask *task;
264 // Call Notify for all tasks
265 while ((task=(AliAnalysisTask*)next()))
53faeca4 266 task->Notify();
890126ab 267
6bb2b24f 268 // Call Notify of the MC truth handler
890126ab 269 if (fMCtruthEventHandler) {
53faeca4 270 fMCtruthEventHandler->Notify(curfile->GetName());
890126ab 271 }
327eaf46 272 }
273 return kTRUE;
274}
275
276//______________________________________________________________________________
277Bool_t AliAnalysisManager::Process(Long64_t entry)
d3106602 278{
279 // The Process() function is called for each entry in the tree (or possibly
280 // keyed object in the case of PROOF) to be processed. The entry argument
281 // specifies which entry in the currently loaded tree is to be processed.
282 // It can be passed to either TTree::GetEntry() or TBranch::GetEntry()
283 // to read either all or the required parts of the data. When processing
284 // keyed objects with PROOF, the object is already loaded and is available
285 // via the fObject pointer.
286 //
287 // This function should contain the "body" of the analysis. It can contain
288 // simple or elaborate selection criteria, run algorithms on the data
289 // of the event and typically fill histograms.
290
291 // WARNING when a selector is used with a TChain, you must use
292 // the pointer to the current TTree to call GetEntry(entry).
293 // The entry is always the local entry number in the current tree.
294 // Assuming that fChain is the pointer to the TChain being processed,
295 // use fChain->GetTree()->GetEntry(entry).
c52c2132 296 if (fDebug > 1) {
981f2614 297 cout << "->AliAnalysisManager::Process()" << endl;
37153431 298 }
6bb2b24f 299
300 if (fOutputEventHandler) fOutputEventHandler ->BeginEvent();
301 if (fMCtruthEventHandler) fMCtruthEventHandler->BeginEvent();
302
327eaf46 303 GetEntry(entry);
304 ExecAnalysis();
981f2614 305 if (fDebug > 1) {
306 cout << "<-AliAnalysisManager::Process()" << endl;
307 }
327eaf46 308 return kTRUE;
d3106602 309}
310
311//______________________________________________________________________________
c52c2132 312void AliAnalysisManager::PackOutput(TList *target)
d3106602 313{
981f2614 314 // Pack all output data containers in the output list. Called at SlaveTerminate
315 // stage in PROOF case for each slave.
c52c2132 316 if (fDebug > 1) {
981f2614 317 cout << "->AliAnalysisManager::PackOutput()" << endl;
c52c2132 318 }
319 if (!target) {
320 Error("PackOutput", "No target. Aborting.");
321 return;
37153431 322 }
c52c2132 323
6bb2b24f 324 if (fOutputEventHandler) fOutputEventHandler ->Terminate();
325 if (fMCtruthEventHandler) fMCtruthEventHandler->Terminate();
8c9485b2 326
c52c2132 327 if (fMode == kProofAnalysis) {
328 TIter next(fOutputs);
329 AliAnalysisDataContainer *output;
330 while ((output=(AliAnalysisDataContainer*)next())) {
981f2614 331 if (fDebug > 1) printf(" Packing container %s...\n", output->GetName());
332 if (output->GetData()) target->Add(output->ExportData());
c52c2132 333 }
334 }
c52c2132 335 if (fDebug > 1) {
981f2614 336 printf("<-AliAnalysisManager::PackOutput: output list contains %d containers\n", target->GetSize());
37153431 337 }
c52c2132 338}
339
340//______________________________________________________________________________
981f2614 341void AliAnalysisManager::ImportWrappers(TList *source)
c52c2132 342{
981f2614 343// Import data in output containers from wrappers coming in source.
344 if (fDebug > 1) {
345 cout << "->AliAnalysisManager::ImportWrappers()" << endl;
346 }
327eaf46 347 TIter next(fOutputs);
981f2614 348 AliAnalysisDataContainer *cont;
349 AliAnalysisDataWrapper *wrap;
350 Int_t icont = 0;
c52c2132 351 while ((cont=(AliAnalysisDataContainer*)next())) {
981f2614 352 wrap = (AliAnalysisDataWrapper*)source->FindObject(cont->GetName());
353 if (!wrap && fDebug>1) {
354 printf("(WW) ImportWrappers: container %s not found in analysis output !\n", cont->GetName());
c52c2132 355 continue;
356 }
981f2614 357 icont++;
358 if (fDebug > 1) printf(" Importing data for container %s\n", wrap->GetName());
359 if (cont->GetFileName()) printf(" -> %s\n", cont->GetFileName());
360 cont->ImportData(wrap);
c52c2132 361 }
981f2614 362 if (fDebug > 1) {
363 cout << "<-AliAnalysisManager::ImportWrappers(): "<< icont << " containers imported" << endl;
364 }
c52c2132 365}
366
367//______________________________________________________________________________
368void AliAnalysisManager::UnpackOutput(TList *source)
369{
370 // Called by AliAnalysisSelector::Terminate. Output containers should
371 // be in source in the same order as in fOutputs.
981f2614 372 if (fDebug > 1) {
373 cout << "->AliAnalysisManager::UnpackOutput()" << endl;
374 }
c52c2132 375 if (!source) {
981f2614 376 Error("UnpackOutput", "No target. Aborting.");
c52c2132 377 return;
378 }
379 if (fDebug > 1) {
c52c2132 380 printf(" Source list contains %d containers\n", source->GetSize());
327eaf46 381 }
c52c2132 382
981f2614 383 if (fMode == kProofAnalysis) ImportWrappers(source);
37153431 384
981f2614 385 TIter next(fOutputs);
c52c2132 386 AliAnalysisDataContainer *output;
387 while ((output=(AliAnalysisDataContainer*)next())) {
c52c2132 388 if (!output->GetData()) continue;
b1310ef5 389 // Check if there are client tasks that run post event loop
390 if (output->HasConsumers()) {
391 // Disable event loop semaphore
392 output->SetPostEventLoop(kTRUE);
393 TObjArray *list = output->GetConsumers();
394 Int_t ncons = list->GetEntriesFast();
395 for (Int_t i=0; i<ncons; i++) {
396 AliAnalysisTask *task = (AliAnalysisTask*)list->At(i);
397 task->CheckNotify(kTRUE);
398 // If task is active, execute it
399 if (task->IsPostEventLoop() && task->IsActive()) {
400 if (fDebug > 1) {
401 cout << "== Executing post event loop task " << task->GetName() << endl;
402 }
403 task->ExecuteTask();
404 }
405 }
406 }
c52c2132 407 // Check if the output need to be written to a file.
408 const char *filename = output->GetFileName();
8ca08916 409 if (!(strcmp(filename, "default"))) {
6bb2b24f 410 if (fOutputEventHandler) filename = fOutputEventHandler->GetOutputFileName();
8ca08916 411 }
412
c52c2132 413 if (!filename || !strlen(filename)) continue;
414 TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(filename);
415 if (file) file->cd();
416 else file = new TFile(filename, "RECREATE");
417 if (file->IsZombie()) continue;
418 // Reparent data to this file
419 TMethodCall callEnv;
420 if (output->GetData()->IsA())
421 callEnv.InitWithPrototype(output->GetData()->IsA(), "SetDirectory", "TDirectory*");
422 if (callEnv.IsValid()) {
423 callEnv.SetParam((Long_t) file);
424 callEnv.Execute(output->GetData());
425 }
b1109411 426 output->GetData()->Write();
c52c2132 427 }
981f2614 428 if (fDebug > 1) {
429 cout << "<-AliAnalysisManager::UnpackOutput()" << endl;
430 }
d3106602 431}
432
433//______________________________________________________________________________
434void AliAnalysisManager::Terminate()
435{
436 // The Terminate() function is the last function to be called during
437 // a query. It always runs on the client, it can be used to present
c52c2132 438 // the results graphically.
439 if (fDebug > 1) {
981f2614 440 cout << "->AliAnalysisManager::Terminate()" << endl;
c52c2132 441 }
327eaf46 442 AliAnalysisTask *task;
c52c2132 443 TIter next(fTasks);
327eaf46 444 // Call Terminate() for tasks
c52c2132 445 while ((task=(AliAnalysisTask*)next())) task->Terminate();
981f2614 446 if (fDebug > 1) {
447 cout << "<-AliAnalysisManager::Terminate()" << endl;
448 }
8c9485b2 449 //
6bb2b24f 450 if (fOutputEventHandler) fOutputEventHandler->TerminateIO();
d3106602 451}
452
453//______________________________________________________________________________
454void AliAnalysisManager::AddTask(AliAnalysisTask *task)
455{
456// Adds a user task to the global list of tasks.
457 task->SetActive(kFALSE);
458 fTasks->Add(task);
459}
460
461//______________________________________________________________________________
462AliAnalysisTask *AliAnalysisManager::GetTask(const char *name) const
463{
464// Retreive task by name.
465 if (!fTasks) return NULL;
466 return (AliAnalysisTask*)fTasks->FindObject(name);
467}
468
469//______________________________________________________________________________
470AliAnalysisDataContainer *AliAnalysisManager::CreateContainer(const char *name,
c52c2132 471 TClass *datatype, EAliAnalysisContType type, const char *filename)
d3106602 472{
473// Create a data container of a certain type. Types can be:
c52c2132 474// kExchangeContainer = 0, used to exchange date between tasks
d3106602 475// kInputContainer = 1, used to store input data
476// kOutputContainer = 2, used for posting results
b1310ef5 477 if (fContainers->FindObject(name)) {
478 Error("CreateContainer","A container named %s already defined !\n",name);
479 return NULL;
480 }
d3106602 481 AliAnalysisDataContainer *cont = new AliAnalysisDataContainer(name, datatype);
482 fContainers->Add(cont);
483 switch (type) {
484 case kInputContainer:
485 fInputs->Add(cont);
486 break;
487 case kOutputContainer:
488 fOutputs->Add(cont);
c52c2132 489 if (filename && strlen(filename)) cont->SetFileName(filename);
d3106602 490 break;
c52c2132 491 case kExchangeContainer:
d3106602 492 break;
493 }
494 return cont;
495}
496
497//______________________________________________________________________________
498Bool_t AliAnalysisManager::ConnectInput(AliAnalysisTask *task, Int_t islot,
499 AliAnalysisDataContainer *cont)
500{
501// Connect input of an existing task to a data container.
502 if (!fTasks->FindObject(task)) {
503 AddTask(task);
c52c2132 504 Warning("ConnectInput", "Task %s not registered. Now owned by analysis manager", task->GetName());
d3106602 505 }
506 Bool_t connected = task->ConnectInput(islot, cont);
507 return connected;
508}
509
510//______________________________________________________________________________
511Bool_t AliAnalysisManager::ConnectOutput(AliAnalysisTask *task, Int_t islot,
512 AliAnalysisDataContainer *cont)
513{
514// Connect output of an existing task to a data container.
515 if (!fTasks->FindObject(task)) {
516 AddTask(task);
c52c2132 517 Warning("ConnectOutput", "Task %s not registered. Now owned by analysis manager", task->GetName());
d3106602 518 }
519 Bool_t connected = task->ConnectOutput(islot, cont);
520 return connected;
521}
522
523//______________________________________________________________________________
524void AliAnalysisManager::CleanContainers()
525{
526// Clean data from all containers that have already finished all client tasks.
527 TIter next(fContainers);
528 AliAnalysisDataContainer *cont;
529 while ((cont=(AliAnalysisDataContainer *)next())) {
530 if (cont->IsOwnedData() &&
531 cont->IsDataReady() &&
532 cont->ClientsExecuted()) cont->DeleteData();
533 }
534}
535
536//______________________________________________________________________________
537Bool_t AliAnalysisManager::InitAnalysis()
538{
539// Initialization of analysis chain of tasks. Should be called after all tasks
540// and data containers are properly connected
541 // Check for input/output containers
542 fInitOK = kFALSE;
d3106602 543 // Check for top tasks (depending only on input data containers)
544 if (!fTasks->First()) {
c52c2132 545 Error("InitAnalysis", "Analysis has no tasks !");
d3106602 546 return kFALSE;
547 }
548 TIter next(fTasks);
549 AliAnalysisTask *task;
550 AliAnalysisDataContainer *cont;
551 Int_t ntop = 0;
552 Int_t nzombies = 0;
327eaf46 553 Bool_t iszombie = kFALSE;
554 Bool_t istop = kTRUE;
d3106602 555 Int_t i;
556 while ((task=(AliAnalysisTask*)next())) {
327eaf46 557 istop = kTRUE;
558 iszombie = kFALSE;
d3106602 559 Int_t ninputs = task->GetNinputs();
d3106602 560 for (i=0; i<ninputs; i++) {
561 cont = task->GetInputSlot(i)->GetContainer();
562 if (!cont) {
327eaf46 563 if (!iszombie) {
d3106602 564 task->SetZombie();
565 fZombies->Add(task);
566 nzombies++;
327eaf46 567 iszombie = kTRUE;
d3106602 568 }
c52c2132 569 Error("InitAnalysis", "Input slot %d of task %s has no container connected ! Declared zombie...",
570 i, task->GetName());
d3106602 571 }
327eaf46 572 if (iszombie) continue;
d3106602 573 // Check if cont is an input container
327eaf46 574 if (istop && !fInputs->FindObject(cont)) istop=kFALSE;
d3106602 575 // Connect to parent task
576 }
327eaf46 577 if (istop) {
d3106602 578 ntop++;
579 fTopTasks->Add(task);
580 }
581 }
582 if (!ntop) {
c52c2132 583 Error("InitAnalysis", "No top task defined. At least one task should be connected only to input containers");
d3106602 584 return kFALSE;
585 }
586 // Check now if there are orphan tasks
587 for (i=0; i<ntop; i++) {
588 task = (AliAnalysisTask*)fTopTasks->At(i);
589 task->SetUsed();
590 }
591 Int_t norphans = 0;
592 next.Reset();
593 while ((task=(AliAnalysisTask*)next())) {
594 if (!task->IsUsed()) {
595 norphans++;
c52c2132 596 Warning("InitAnalysis", "Task %s is orphan", task->GetName());
d3106602 597 }
598 }
599 // Check the task hierarchy (no parent task should depend on data provided
600 // by a daughter task)
601 for (i=0; i<ntop; i++) {
602 task = (AliAnalysisTask*)fTopTasks->At(i);
603 if (task->CheckCircularDeps()) {
c52c2132 604 Error("InitAnalysis", "Found illegal circular dependencies between following tasks:");
d3106602 605 PrintStatus("dep");
606 return kFALSE;
607 }
608 }
b1310ef5 609 // Check that all containers feeding post-event loop tasks are in the outputs list
610 TIter nextcont(fContainers); // loop over all containers
611 while ((cont=(AliAnalysisDataContainer*)nextcont())) {
612 if (!cont->IsPostEventLoop() && !fOutputs->FindObject(cont)) {
613 if (cont->HasConsumers()) {
614 // Check if one of the consumers is post event loop
615 TIter nextconsumer(cont->GetConsumers());
616 while ((task=(AliAnalysisTask*)nextconsumer())) {
617 if (task->IsPostEventLoop()) {
618 fOutputs->Add(cont);
619 break;
620 }
621 }
622 }
623 }
624 }
327eaf46 625 fInitOK = kTRUE;
d3106602 626 return kTRUE;
627}
628
629//______________________________________________________________________________
630void AliAnalysisManager::PrintStatus(Option_t *option) const
631{
632// Print task hierarchy.
633 TIter next(fTopTasks);
634 AliAnalysisTask *task;
635 while ((task=(AliAnalysisTask*)next()))
636 task->PrintTask(option);
637}
638
639//______________________________________________________________________________
640void AliAnalysisManager::ResetAnalysis()
641{
642// Reset all execution flags and clean containers.
643 CleanContainers();
644}
645
646//______________________________________________________________________________
c52c2132 647void AliAnalysisManager::StartAnalysis(const char *type, TTree *tree)
648{
649// Start analysis for this manager. Analysis task can be: LOCAL, PROOF or GRID.
650 if (!fInitOK) {
651 Error("StartAnalysis","Analysis manager was not initialized !");
652 return;
653 }
654 if (fDebug>1) {
655 cout << "StartAnalysis: " << GetName() << endl;
656 }
657 TString anaType = type;
658 anaType.ToLower();
659 fMode = kLocalAnalysis;
660 if (tree) {
661 if (anaType.Contains("proof")) fMode = kProofAnalysis;
662 else if (anaType.Contains("grid")) fMode = kGridAnalysis;
663 }
664 if (fMode == kGridAnalysis) {
665 Warning("StartAnalysis", "GRID analysis mode not implemented. Running local.");
981f2614 666 fMode = kLocalAnalysis;
667 }
efd53803 668 char line[128];
669 SetEventLoop(kFALSE);
b1310ef5 670 // Disable all branches if requested and set event loop mode
efd53803 671 if (tree) {
b1310ef5 672 if (TestBit(kDisableBranches)) {
673 printf("Disabling all branches...\n");
674// tree->SetBranchStatus("*",0); // not yet working
675 }
efd53803 676 SetEventLoop(kTRUE);
677 }
efd53803 678
c52c2132 679 TChain *chain = dynamic_cast<TChain*>(tree);
9b33830a 680
681 // Initialize locally all tasks
682 TIter next(fTasks);
683 AliAnalysisTask *task;
efd53803 684 while ((task=(AliAnalysisTask*)next())) {
efd53803 685 task->LocalInit();
686 }
687
c52c2132 688 switch (fMode) {
689 case kLocalAnalysis:
690 if (!tree) {
981f2614 691 TIter next(fTasks);
692 AliAnalysisTask *task;
693 // Call CreateOutputObjects for all tasks
c5a87c56 694 while ((task=(AliAnalysisTask*)next())) {
695 TDirectory *curdir = gDirectory;
696 task->CreateOutputObjects();
697 if (curdir) curdir->cd();
698 }
c52c2132 699 ExecAnalysis();
981f2614 700 Terminate();
c52c2132 701 return;
702 }
703 // Run tree-based analysis via AliAnalysisSelector
8eedd442 704// gROOT->ProcessLine(".L $ALICE_ROOT/ANALYSIS/AliAnalysisSelector.cxx+");
c52c2132 705 cout << "===== RUNNING LOCAL ANALYSIS " << GetName() << " ON TREE " << tree->GetName() << endl;
706 sprintf(line, "AliAnalysisSelector *selector = new AliAnalysisSelector((AliAnalysisManager*)0x%lx);",(ULong_t)this);
707 gROOT->ProcessLine(line);
708 sprintf(line, "((TTree*)0x%lx)->Process(selector);",(ULong_t)tree);
709 gROOT->ProcessLine(line);
710 break;
711 case kProofAnalysis:
712 if (!gROOT->GetListOfProofs() || !gROOT->GetListOfProofs()->GetEntries()) {
713 printf("StartAnalysis: no PROOF!!!\n");
714 return;
715 }
716 sprintf(line, "gProof->AddInput((TObject*)0x%lx);", (ULong_t)this);
717 gROOT->ProcessLine(line);
718 if (chain) {
719 chain->SetProof();
720 cout << "===== RUNNING PROOF ANALYSIS " << GetName() << " ON CHAIN " << chain->GetName() << endl;
8eedd442 721 chain->Process("AliAnalysisSelector");
c52c2132 722 } else {
723 printf("StartAnalysis: no chain\n");
724 return;
725 }
726 break;
727 case kGridAnalysis:
728 Warning("StartAnalysis", "GRID analysis mode not implemented. Running local.");
729 }
730}
731
732//______________________________________________________________________________
d3106602 733void AliAnalysisManager::ExecAnalysis(Option_t *option)
734{
735// Execute analysis.
327eaf46 736 if (!fInitOK) {
c52c2132 737 Error("ExecAnalysis", "Analysis manager was not initialized !");
327eaf46 738 return;
739 }
d3106602 740 AliAnalysisTask *task;
327eaf46 741 // Check if the top tree is active.
742 if (fTree) {
c52c2132 743 if (fDebug>1) {
744 printf("AliAnalysisManager::ExecAnalysis\n");
745 }
327eaf46 746 TIter next(fTasks);
747 // De-activate all tasks
748 while ((task=(AliAnalysisTask*)next())) task->SetActive(kFALSE);
749 AliAnalysisDataContainer *cont = (AliAnalysisDataContainer*)fInputs->At(0);
750 if (!cont) {
c52c2132 751 Error("ExecAnalysis","Cannot execute analysis in TSelector mode without at least one top container");
327eaf46 752 return;
753 }
754 cont->SetData(fTree); // This will notify all consumers
6bb2b24f 755//
756// Call BeginEvent() for optional output and MC services
757 if (fOutputEventHandler) fOutputEventHandler ->BeginEvent();
758 if (fMCtruthEventHandler) fMCtruthEventHandler->BeginEvent();
759//
760// Execute the tasks
327eaf46 761 TIter next1(cont->GetConsumers());
762 while ((task=(AliAnalysisTask*)next1())) {
c52c2132 763 if (fDebug >1) {
764 cout << " Executing task " << task->GetName() << endl;
765 }
6bb2b24f 766
327eaf46 767 task->ExecuteTask(option);
768 }
6bb2b24f 769//
770// Call FinishEvent() for optional output and MC services
771 if (fOutputEventHandler) fOutputEventHandler ->FinishEvent();
772 if (fMCtruthEventHandler) fMCtruthEventHandler->FinishEvent();
773//
327eaf46 774 return;
775 }
776 // The event loop is not controlled by TSelector
6bb2b24f 777//
778// Call BeginEvent() for optional output and MC services
779 if (fOutputEventHandler) fOutputEventHandler ->BeginEvent();
780 if (fMCtruthEventHandler) fMCtruthEventHandler->BeginEvent();
327eaf46 781 TIter next2(fTopTasks);
782 while ((task=(AliAnalysisTask*)next2())) {
783 task->SetActive(kTRUE);
c52c2132 784 if (fDebug > 1) {
785 cout << " Executing task " << task->GetName() << endl;
786 }
d3106602 787 task->ExecuteTask(option);
327eaf46 788 }
6bb2b24f 789//
790// Call FinishEvent() for optional output and MC services
791 if (fOutputEventHandler) fOutputEventHandler->FinishEvent();
792 if (fMCtruthEventHandler) fMCtruthEventHandler->FinishEvent();
d3106602 793}
794
795//______________________________________________________________________________
796void AliAnalysisManager::FinishAnalysis()
797{
798// Finish analysis.
799}