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Separation of ALICE independent ANALYSIS code and ALICE specific code.
[u/mrichter/AliRoot.git] / ANALYSIS / AliAnalysisTaskSE.cxx
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  
18 #include <TROOT.h>
19 #include <TSystem.h>
20 #include <TInterpreter.h>
21 #include <TChain.h>
22 #include <TFile.h>
23 #include <TList.h>
24
25 #include "AliAnalysisTaskSE.h"
26 #include "AliAnalysisManager.h"
27 #include "AliESDEvent.h"
28 #include "AliESD.h"
29 #include "AliAODEvent.h"
30 #include "AliVEvent.h"
31 #include "AliAODHandler.h"
32 #include "AliMCEventHandler.h"
33 #include "AliInputEventHandler.h"
34 #include "AliMCEvent.h"
35 #include "AliStack.h"
36
37
38 ClassImp(AliAnalysisTaskSE)
39
40 ////////////////////////////////////////////////////////////////////////
41
42 AliAnalysisTaskSE::AliAnalysisTaskSE():
43     AliAnalysisTask(),
44     fDebug(0),
45     fInputEvent(0x0),
46     fOutputAOD(0x0),
47     fMCEvent(0x0),
48     fTreeA(0x0)
49 {
50   // Default constructor
51 }
52
53 AliAnalysisTaskSE::AliAnalysisTaskSE(const char* name):
54     AliAnalysisTask(name, "AnalysisTaskSE"),
55     fDebug(0),
56     fInputEvent(0x0),
57     fOutputAOD(0x0),
58     fMCEvent(0x0),
59     fTreeA(0x0)
60 {
61   // Default constructor
62     DefineInput (0, TChain::Class());
63     DefineOutput(0,  TTree::Class());
64 }
65
66
67
68 void AliAnalysisTaskSE::ConnectInputData(Option_t* /*option*/)
69 {
70 // Connect the input data
71     if (fDebug > 1) printf("AnalysisTaskSE::ConnectInputData() \n");
72 //
73 //  ESD
74 //
75     AliInputEventHandler* handler = (AliInputEventHandler*) 
76         ((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler());
77     if (handler) fInputEvent = handler->GetEvent();
78 //
79 //  Monte Carlo
80 //
81     AliMCEventHandler*    mcH = 0;
82     mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
83     if (mcH) fMCEvent = mcH->MCEvent();
84 }
85
86 void AliAnalysisTaskSE::CreateOutputObjects()
87 {
88 // Create the output container
89 //
90 //  Default AOD
91     if (fDebug > 1) printf("AnalysisTaskSE::CreateOutPutData() \n");
92
93     AliAODHandler* handler = (AliAODHandler*) 
94         ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
95     
96     fOutputAOD   = handler->GetAOD();
97     fTreeA = handler->GetTree();
98     UserCreateOutputObjects();
99 }
100
101 void AliAnalysisTaskSE::Exec(Option_t* option)
102 {
103 //
104 // Exec analysis of one event
105     PostData(0, fTreeA);
106     UserExec(option);
107 }
108
109
110