]>
Commit | Line | Data |
---|---|---|
91bf40f8 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2009, 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 | */ | |
19 | ||
20 | ///////////////////////////////////////////////////////////// | |
21 | // | |
739f0aa6 | 22 | // Filtering task: |
23 | // Selection of only 1% of the events for which to keep | |
24 | // the ESD friend | |
91bf40f8 | 25 | // |
26 | // ///////////////////////////////////////////////////////////// | |
27 | ||
28 | #include <TTree.h> | |
29 | #include <TChain.h> | |
30 | ||
31 | #include "AliLog.h" | |
32 | #include "AliESDInputHandler.h" | |
33 | #include "AliESDtrack.h" | |
34 | #include "AliESDEvent.h" | |
35 | #include "AliESDfriend.h" | |
36 | #include "AliAnalysisTaskFilter.h" | |
37 | #include "AliAnalysisManager.h" | |
739f0aa6 | 38 | #include "AliAnalysisTaskFilterSteer.h" |
91bf40f8 | 39 | #include "TRandom.h" |
40 | ||
41 | ||
739f0aa6 | 42 | ClassImp(AliAnalysisTaskFilterSteer) |
91bf40f8 | 43 | |
44 | ||
45 | //________________________________________________________________________ | |
739f0aa6 | 46 | AliAnalysisTaskFilterSteer::AliAnalysisTaskFilterSteer(): |
91bf40f8 | 47 | AliAnalysisTaskFilter(), |
739f0aa6 | 48 | fFraction(0.01), |
91bf40f8 | 49 | fESDInput(0), |
50 | fESDfriendInput(0) | |
51 | { | |
52 | // Constructor | |
53 | ||
54 | // Define input and output slots here | |
55 | // Input slot #0 works with a TChain | |
56 | DefineInput(0, TChain::Class()); | |
57 | // Output slot #0 writes into a TTree | |
58 | //DefineOutput(0,TTree::Class()); | |
59 | } | |
60 | ||
61 | //________________________________________________________________________ | |
739f0aa6 | 62 | AliAnalysisTaskFilterSteer::AliAnalysisTaskFilterSteer(const char* name): |
91bf40f8 | 63 | AliAnalysisTaskFilter(name), |
739f0aa6 | 64 | fFraction(0.01), |
91bf40f8 | 65 | fESDInput(0), |
66 | fESDfriendInput(0) | |
67 | { | |
68 | // Constructor | |
69 | ||
70 | // Define input and output slots here | |
71 | // Input slot #0 works with a TChain | |
72 | DefineInput(0, TChain::Class()); | |
73 | // Output slot #0 writes into a TTree | |
74 | //DefineOutput(0,TTree::Class()); | |
75 | } | |
76 | ||
77 | //________________________________________________________________________ | |
739f0aa6 | 78 | AliAnalysisTaskFilterSteer::~AliAnalysisTaskFilterSteer() |
91bf40f8 | 79 | { |
80 | ||
81 | // dtor | |
82 | ||
83 | } | |
84 | ||
85 | //________________________________________________________________________ | |
739f0aa6 | 86 | void AliAnalysisTaskFilterSteer::Init() |
91bf40f8 | 87 | { |
88 | // Initialization | |
89 | ||
90 | return; | |
91 | } | |
92 | ||
93 | //________________________________________________________________________ | |
739f0aa6 | 94 | void AliAnalysisTaskFilterSteer::UserCreateOutputObjects() |
91bf40f8 | 95 | { |
96 | // | |
97 | // Create the output container | |
98 | // | |
99 | ||
100 | return; | |
101 | } | |
102 | ||
103 | //________________________________________________________________________ | |
739f0aa6 | 104 | void AliAnalysisTaskFilterSteer::UserExec(Option_t */*option*/) |
91bf40f8 | 105 | { |
106 | ||
739f0aa6 | 107 | // |
108 | // Applying random selection of the events | |
91bf40f8 | 109 | |
110 | fESDInput = dynamic_cast<AliESDEvent*>(InputEvent()); // get the input ESD | |
739f0aa6 | 111 | fESDfriendInput = InputFriend(); // get the input friend |
91bf40f8 | 112 | if(!fESDInput) { |
739f0aa6 | 113 | printf("AliAnalysisTaskFilterSteer::Exec(): no ESD \n"); |
91bf40f8 | 114 | return; |
115 | } | |
116 | if(!fESDfriendInput) { | |
739f0aa6 | 117 | printf("AliAnalysisTaskFilterSteer::Exec(): no ESDfriend \n"); |
91bf40f8 | 118 | return; |
119 | } | |
739f0aa6 | 120 | |
91bf40f8 | 121 | // attach ESDfriend |
122 | ||
123 | AliESDfriend* esdFriendOutput = (AliESDfriend*)ESDfriend(); | |
739f0aa6 | 124 | AliDebug(3,Form("Number of ESD tracks in input = %d ",fESDInput->GetNumberOfTracks())); |
125 | AliDebug(3,Form("Number of tracks in input friends = %d ",fESDfriendInput->GetNumberOfTracks())); | |
126 | AliDebug(3,Form("Number of tracks in output friendsNew before filtering = %d ",esdFriendOutput->GetNumberOfTracks())); | |
91bf40f8 | 127 | |
128 | // | |
739f0aa6 | 129 | // keeping all the tracks for the randomly "fFraction" of the total number of events |
91bf40f8 | 130 | // |
739f0aa6 | 131 | |
91bf40f8 | 132 | for (Int_t i = 0; i< fESDInput->GetNumberOfTracks(); i++){ |
739f0aa6 | 133 | AliESDfriendTrack* tOld = (AliESDfriendTrack*)fESDfriendInput->GetTrack(i); |
134 | AddFriendTrackAt(tOld,i); | |
91bf40f8 | 135 | } |
739f0aa6 | 136 | AliDebug(2,Form("Number of tracks in output friendsNew after filtering = %d ",esdFriendOutput->GetNumberOfTracks())); |
137 | AliDebug(2,Form("Number of tracks in output friendsNew after filtering with GetEntries() = %d ",esdFriendOutput->GetEntriesInTracks())); | |
138 | ||
91bf40f8 | 139 | return; |
140 | } | |
141 | ||
142 | //________________________________________________________________________ | |
739f0aa6 | 143 | void AliAnalysisTaskFilterSteer::Terminate(Option_t */*option*/) |
91bf40f8 | 144 | { |
145 | // Terminate analysis | |
146 | // | |
739f0aa6 | 147 | AliDebug(2,"AliAnalysisTaskFilterSteer: Terminate() \n"); |
91bf40f8 | 148 | |
149 | return; | |
150 | } | |
151 | //________________________________________________________________________ | |
739f0aa6 | 152 | Bool_t AliAnalysisTaskFilterSteer::UserSelectESDfriendForCurrentEvent() |
91bf40f8 | 153 | { |
739f0aa6 | 154 | // |
155 | // Selecting or discarding current event | |
156 | // | |
157 | Double_t number = gRandom->Rndm(); | |
158 | if (number<fFraction){ | |
159 | // keeping event | |
160 | AliDebug(2,Form("*****************Selecting event (number = %f)",number)); | |
161 | return kTRUE; | |
162 | } | |
163 | AliDebug(2,Form("*****************Skipping event (number = %f)",number)); | |
164 | return kFALSE; | |
91bf40f8 | 165 | } |