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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 | // AliAnalysysDataSlot - Class representing a data slot of an analysis task. | |
21 | // An analysis slot enforces a certain data type required by the Exec() | |
22 | // method of the analysis task. The slot must be connected to a data | |
23 | // container with data of the same type. | |
24 | // | |
25 | // The class should not be directly created by users - it is created by | |
26 | // each AliAnalysisTask when defining its input/output slots using: | |
27 | // | |
28 | // AliAnalysisTask::SetInput(Int_t index, TClass *type); | |
29 | // AliAnalysisTask::SetOutput(TClass *type); | |
30 | // | |
31 | // An existing data contaner (AliAnalysisDataContainer) can be connected to the | |
32 | // input/output slots of an analysis task using: | |
33 | // | |
34 | // AliAnalysisModule::ConnectInput(AliAnalysisTask *task, Int_t islot, | |
35 | // AliAnalysisDataContainer *cont) | |
36 | // AliAnalysisModule::ConnectOutput(AliAnalysisTask *task, | |
37 | // AliAnalysisDataContainer *cont) | |
38 | // To connect a slot to a data container, the data types declared by both must | |
39 | // match. | |
40 | //============================================================================== | |
41 | ||
c52c2132 | 42 | #include <Riostream.h> |
43 | #include <TROOT.h> | |
44 | #include <TClass.h> | |
45 | #include <TTree.h> | |
521adffd | 46 | #include <TLeaf.h> |
d3106602 | 47 | |
48 | #include "AliAnalysisDataSlot.h" | |
49 | #include "AliAnalysisTask.h" | |
50 | #include "AliAnalysisDataContainer.h" | |
51 | ||
52 | ClassImp(AliAnalysisDataSlot) | |
53 | ||
c52c2132 | 54 | //______________________________________________________________________________ |
55 | AliAnalysisDataSlot::AliAnalysisDataSlot(TClass *type, AliAnalysisTask *task) | |
56 | :TNamed(), | |
57 | fType(type), | |
58 | fParent(task), | |
59 | fContainer(NULL) | |
60 | { | |
61 | // Default constructor. | |
62 | SetTitle(fType->GetName()); | |
63 | } | |
64 | ||
65 | //______________________________________________________________________________ | |
66 | AliAnalysisDataSlot::AliAnalysisDataSlot(const AliAnalysisDataSlot &slot) | |
67 | :TNamed(slot), | |
68 | fType(NULL), | |
69 | fParent(slot.fParent), | |
70 | fContainer(slot.fContainer) | |
71 | { | |
72 | // Copy ctor. | |
73 | GetType(); | |
74 | } | |
75 | ||
37a26056 | 76 | //______________________________________________________________________________ |
77 | AliAnalysisDataSlot& AliAnalysisDataSlot::operator=(const AliAnalysisDataSlot &slot) | |
78 | { | |
79 | // Assignment | |
80 | if (&slot == this) return *this; | |
c52c2132 | 81 | TNamed::operator=(slot); |
82 | GetType(); | |
37a26056 | 83 | fParent = slot.fParent; |
84 | fContainer = slot.fContainer; | |
85 | return *this; | |
86 | } | |
87 | ||
d3106602 | 88 | //______________________________________________________________________________ |
89 | Bool_t AliAnalysisDataSlot::ConnectContainer(AliAnalysisDataContainer *cont) | |
90 | { | |
91 | // Connect the data slot with a given container. The operation will succeed only | |
92 | // if the type defined by the slot inherits from the type enforced by the container. | |
93 | // The error message in case of failure is posted by the caller. | |
c52c2132 | 94 | if (!cont || !GetType()) return kFALSE; |
d3106602 | 95 | if (!fType->InheritsFrom(cont->GetType())) { |
c52c2132 | 96 | cout<<"Data slot of type "<<GetTitle()<<" of task "<<fParent->GetName()<<" cannot be connected to data container "<<cont->GetName()<<" of type "<<cont->GetTitle()<<endl; |
11026a80 | 97 | //AliError(Form("Data slot of type %s of task %s cannot be connected to data container %s of type %s", fType->GetName(), fParent->GetName(), cont->GetName(), cont->GetType()->GetName())); |
d3106602 | 98 | return kFALSE; |
99 | } | |
100 | fContainer = cont; | |
101 | return kTRUE; | |
102 | } | |
103 | ||
c52c2132 | 104 | //______________________________________________________________________________ |
105 | TClass *AliAnalysisDataSlot::GetType() const | |
106 | { | |
107 | // Get class type for this slot. | |
108 | AliAnalysisDataSlot *slot = (AliAnalysisDataSlot*)this; | |
109 | if (!fType) slot->SetType(gROOT->GetClass(fTitle.Data())); | |
110 | if (!fType) printf("AliAnalysisDataSlot: Unknown class: %s\n", GetTitle()); | |
111 | return fType; | |
112 | } | |
113 | ||
327eaf46 | 114 | //______________________________________________________________________________ |
115 | void *AliAnalysisDataSlot::GetBranchAddress(const char *branchname) const | |
116 | { | |
117 | // Retrieve the address for a given branch. One should always test this before | |
118 | // using SetBranchAddress because the address gets set by the first caller. | |
119 | // Call this in MyTask::Init() | |
c52c2132 | 120 | if (!GetType()) return NULL; |
327eaf46 | 121 | if (!fType->InheritsFrom(TTree::Class())) { |
11026a80 | 122 | cout<<"Cannot call GetBranchAddress() for data slot of task "<<fParent->GetName()<<" not pointing to tree-type data"<<endl; |
123 | //AliFatal(Form("Cannot call GetBranchAddress() for data slot of task %s not pointing to tree-type data", fParent->GetName())); | |
327eaf46 | 124 | return NULL; |
125 | } | |
126 | if (!IsDataReady()) { | |
11026a80 | 127 | cout<<"Cannot call GetBranchAddress() for data slot of task "<<fParent->GetName()<<" while data is not ready"<<endl; |
128 | //AliFatal(Form("Cannot call GetBranchAddress() for data slot of task %s while data is not ready", fParent->GetName())); | |
327eaf46 | 129 | return NULL; |
130 | } | |
131 | TTree *tree = (TTree*)GetData(); | |
132 | TBranch *br = tree->GetBranch(branchname); | |
133 | if (!br) { | |
11026a80 | 134 | cout<<"Branch "<<branchname<<" not found in tree "<<tree->GetName()<<" as input of task "<<fParent->GetName()<<"..."<<endl; |
135 | //AliFatal(Form("Branch %s not found in tree %s as input of task %s...", branchname, tree->GetName(), fParent->GetName())); | |
327eaf46 | 136 | return NULL; |
137 | } | |
138 | return br->GetAddress(); | |
139 | } | |
140 | ||
b1310ef5 | 141 | //______________________________________________________________________________ |
142 | Int_t AliAnalysisDataSlot::EnableBranch(const char *bname, TTree *tree) | |
143 | { | |
144 | // Static method to enable recursively a branch in a tree (why this in not in ROOT?) | |
145 | TBranch *branch = tree->GetBranch(bname); | |
146 | Int_t count = 0; | |
147 | // static Int_t indent = 0; | |
148 | if (!branch) return count; | |
149 | // TString s; | |
150 | // for (Int_t i=0; i<indent; i++) s += " "; | |
151 | count++; | |
152 | // printf("%sbranch %s: kDoNotProcess=%d\n",s.Data(), branch->GetName(), branch->TestBit(kDoNotProcess)); | |
153 | branch->SetBit(kDoNotProcess, kFALSE); | |
154 | TIter next(branch->GetListOfBranches()); | |
155 | TBranch *branch_sub; | |
156 | // Activate all sub-branches | |
157 | // indent++; | |
158 | while ((branch_sub=(TBranch*)next())) { | |
159 | count += AliAnalysisDataSlot::EnableBranch(branch_sub->GetName(), tree); | |
160 | } | |
161 | // indent--; | |
162 | return count; | |
163 | } | |
164 | ||
327eaf46 | 165 | //______________________________________________________________________________ |
166 | Bool_t AliAnalysisDataSlot::SetBranchAddress(const char *branchname, void *address) | |
167 | { | |
168 | // Set a branch address for input tree. To be called during MyTask::Init() | |
169 | // only if GetBranchAddress() returns a NULL pointer for a tree-type slot. | |
170 | if (GetBranchAddress(branchname)) { | |
981f2614 | 171 | Error("SetBranchAddress","Branch address for %s already set by other task. Call first GetBranchAddress() in %s::ConnectInputData()",branchname, fParent->GetName()); |
327eaf46 | 172 | return kFALSE; |
173 | } | |
174 | TTree *tree = (TTree*)GetData(); | |
175 | tree->SetBranchAddress(branchname, address); | |
176 | return kTRUE; | |
177 | } | |
178 | ||
d3106602 | 179 | //______________________________________________________________________________ |
180 | TObject *AliAnalysisDataSlot::GetData() const | |
181 | { | |
182 | // Retreives the data from the container if it is ready. | |
183 | if (!fContainer) { | |
c52c2132 | 184 | cout<<"Data slot of type "<<GetTitle()<<" of task "<<fParent->GetName()<<" has no connected data container"<<endl; |
11026a80 | 185 | //AliError(Form("Data slot of type %s of task %s has no connected data container",fType->GetName(), fParent->GetName())); |
d3106602 | 186 | return NULL; |
187 | } | |
188 | if (!fContainer->IsDataReady()) return NULL; | |
189 | return fContainer->GetData(); | |
190 | } | |
191 | ||
192 | //______________________________________________________________________________ | |
193 | Bool_t AliAnalysisDataSlot::IsDataReady() const | |
194 | { | |
195 | // Check if data for this slot is ready in its container. | |
196 | if (!fContainer) { | |
c52c2132 | 197 | cout<<"Data slot of type "<<GetTitle()<<" of task "<<fParent->GetName()<<" has no connected data container"<<endl; |
11026a80 | 198 | //AliError(Form("Data slot of type %s of task %s has no connected data container",fType->GetName(), fParent->GetName())); |
d3106602 | 199 | return kFALSE; |
200 | } | |
201 | return fContainer->IsDataReady(); | |
202 | } | |
203 |